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Document and Entity Information - USD ($)	12 Months Ended
Document and Entity Information - USD ($)	Dec. 31, 2012	Feb. 19, 2013	Jun. 30, 2012
Entity Information [Line Items]
Document Type	10-K
Amendment Flag	false
Document Period End Date	Dec. 31, 2012
Document Fiscal Year Focus	2012
Document Fiscal Period Focus	FY
Trading Symbol	MKSI
Entity Registrant Name	MKS INSTRUMENTS INC
Entity Central Index Key	0001049502
Current Fiscal Year End Date	--12-31
Entity Well-known Seasoned Issuer	No
Entity Current Reporting Status	Yes
Entity Voluntary Filers	No
Entity Filer Category	Large Accelerated Filer
Entity Common Stock, Shares Outstanding		52,761,825
Entity Public Float			$ 1,525,840,465

Consolidated Balance Sheets - USD ($) $ in Thousands	Dec. 31, 2012	Dec. 31, 2011
Current assets:
Cash and cash equivalents	$ 287,588	$ 312,916
Short-term investments	327,653	252,603
Trade accounts receivable, net of allowances of $2,879 and $2,516 at December 31, 2012 and 2011, respectively	82,060	120,894
Inventories	134,639	153,632
Deferred income taxes	8,194	10,618
Other current assets	28,048	34,238
Total current assets	868,182	884,901
Property, plant and equipment, net	80,516	72,487
Long-term investments	12,158	7,873
Goodwill	150,733	140,084
Intangible assets, net	11,561	1,043
Other assets	11,692	12,266
Total assets	1,134,842	1,118,654
Current liabilities:
Short-term borrowings		1,932
Accounts payable	16,803	24,853
Accrued compensation	20,955	21,774
Income taxes payable	4,148	7,548
Other current liabilities	37,405	40,324
Total current liabilities	79,311	96,431
Other liabilities	43,375	32,211
Commitments and contingencies (Note 23)
Stockholders' equity:
Preferred Stock, $0.01 par value, 2,000,000 shares authorized; none issued and outstanding
Common Stock, no par value, 200,000,000 shares authorized; 52,748,849 and 52,491,948 shares issued and outstanding at December 31, 2012 and 2011, respectively	113	113
Additional paid-in capital	718,005	707,419
Retained earnings	278,583	268,870
Accumulated other comprehensive income	15,455	13,610
Total stockholders' equity	1,012,156	990,012
Total liabilities and stockholders' equity	$ 1,134,842	$ 1,118,654

Consolidated Balance Sheets (Parenthetical) - USD ($) shares in Thousands, $ in Thousands	Dec. 31, 2012	Dec. 31, 2011
Allowances for trade accounts receivable	$ 2,879	$ 2,516
Preferred Stock, par value	$ 0.01	$ 0.01
Preferred Stock, shares authorized	2,000,000	2,000,000
Preferred Stock, shares issued	0	0
Preferred Stock, shares outstanding	0	0
Common Stock, par value	$ 0	$ 0
Common Stock, shares authorized	200,000,000	200,000,000
Common Stock, shares issued	52,748,849	52,491,948
Common Stock, shares outstanding	52,748,849	52,491,948

Consolidated Statements of Operations and Comprehensive Income - USD ($)
shares in Thousands, $ in Thousands

12 Months Ended

Dec. 31, 2012

Dec. 31, 2011

Dec. 31, 2010

Net Revenues:

Products

$ 536,774

$ 719,002

$ 763,452

Services

106,734

103,515

89,662

Total net revenues

643,508

822,517

853,114

Cost of revenues:

Cost of products

310,485

387,445

421,777

Cost of service

63,544

60,084

52,699

Total cost of revenues

374,029

447,529

474,476

Gross profit

269,479

374,988

378,638

Research and development

60,118

61,033

62,689

Selling, general and administrative

127,185

128,015

119,841

Litigation

5,316

Completed acquisition costs

1,258

Restructuring

343

Amortization of acquired intangible assets

1,036

1,015

1,283

Gain on sale of asset

(682)

Income from operations

74,223

184,925

195,507

Interest income

1,059

1,159

1,052

Interest expense

146

135

Income from continuing operations before income taxes

75,136

186,052

196,424

Provision for income taxes

27,107

56,321

63,505

Income from continuing operations

48,029

129,731

132,919

Income from discontinued operations, net of taxes

9,668

Net income

48,029

129,731

142,587

Other comprehensive income:

Changes in value of financial instruments designated as cash flow hedges, net of tax expense (benefit)

^[1]

150

1,570

(2,600)

Foreign currency translation adjustments, net of tax of $0 for 2012, 2011 and 2010

1,664

129

3,710

Unrealized gain on investments, net of tax expense

^[2]

133

Total comprehensive income

$ 49,874

$ 131,563

$ 143,725

Basic income per share:

Continuing operations

$ 0.91

$ 2.49

$ 2.66

Discontinued operations

0.19

Net income

0.91

2.49

2.85

Diluted income per share:

Continuing operations

0.90

2.45

2.61

Discontinued operations

0.19

Net income

0.90

2.45

2.80

Cash dividends paid per common share

$ 0.62

$ 0.60

Weighted average common shares outstanding:

Basic

52,686

52,169

50,077

Diluted

53,234

52,847

50,927

[1]	Tax expense (benefit) was $88, $937 and $(1,576) for the years ended December 31, 2012, 2011 and 2010, respectively.
[2]	Tax expense was $19, $79 and $17 for the years ended December 31, 2012, 2011, and 2010, respectively.

Consolidated Statements of Operations and Comprehensive Income (Parenthetical) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Tax (benefit) expense on changes in value of financial instruments designated as cash flow hedges	$ 88	$ 937	$ (1,576)
Tax on foreign currency translation adjustments	0	0	0
Tax expense on unrealized gain on investments	$ 19	$ 79	$ 17

Consolidated Statement of Shareholders' Equity - USD ($) $ in Thousands	Total	Common Stock [Member]	Additional Paid-In Capital [Member]	Retained Earnings [Member]	Accumulated Other Comprehensive Income [Member]
Beginning Balance at Dec. 31, 2009	$ 684,933	$ 113	$ 645,411	$ 28,769	$ 10,640
Beginning Balance, Shares at Dec. 31, 2009		49,514,941
Net issuance under stock-based plans	6,524		6,524
Net issuance under stock-based plans, Shares		1,133,660
Stock-based compensation	10,604		10,604
Tax effect from stock-based plans	1,253		1,253
Comprehensive income (net of tax):
Net income	142,587			142,587
Other comprehensive income	1,138				1,138
Ending Balance at Dec. 31, 2010	847,039	$ 113	663,792	171,356	11,778
Ending Balance, Shares at Dec. 31, 2010		50,648,601
Net issuance under stock-based plans	28,546		28,546
Net issuance under stock-based plans, Shares		1,929,135
Stock-based compensation	11,225		11,225
Tax effect from stock-based plans	5,019		5,019
Stock repurchase	$ (2,007)		(1,163)	(844)
Stock repurchase, Shares	(85,800)	(85,788)
Cash dividend	$ (31,373)			(31,373)
Comprehensive income (net of tax):
Net income	129,731			129,731
Other comprehensive income	1,832				1,832
Ending Balance at Dec. 31, 2011	990,012	$ 113	707,419	268,870	13,610
Ending Balance, Shares at Dec. 31, 2011		52,491,948
Net issuance under stock-based plans	1,564		1,564
Net issuance under stock-based plans, Shares		691,501
Stock-based compensation	13,031		13,031
Tax effect from stock-based plans	1,862		1,862
Stock repurchase	$ (11,501)		(5,871)	(5,630)
Stock repurchase, Shares	(434,600)	(434,600)
Cash dividend	$ (32,686)			(32,686)
Comprehensive income (net of tax):
Net income	48,029			48,029
Other comprehensive income	1,845				1,845
Ending Balance at Dec. 31, 2012	$ 1,012,156	$ 113	$ 718,005	$ 278,583	$ 15,455
Ending Balance, Shares at Dec. 31, 2012		52,748,849

Consolidated Statements of Cash Flows - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Cash flows from operating activities:
Net income	$ 48,029	$ 129,731	$ 142,587
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	14,442	12,980	13,823
Stock-based compensation	13,031	11,225	10,604
Provision for excess and obsolete inventory	15,028	14,857	13,230
Gain on disposal of discontinued operations			(4,432)
Deferred income taxes	3,819	7,549	10,097
Excess tax benefits from stock-based compensation	(2,105)	(5,338)	(2,112)
Other	929	567	(560)
Changes in operating assets and liabilities:
Trade accounts receivable	38,288	17,923	(42,540)
Inventories	5,341	(11,697)	(52,467)
Income taxes	(3,126)	(5,345)	22,796
Other current assets	7,689	(7,674)	296
Accrued compensation and other liabilities	4,083	2,904	40,928
Accounts payable	(8,281)	(11,646)	11,220
Net cash provided by operating activities	137,167	156,036	163,470
Cash flows from investing activities:
Acquisition of business, net of cash acquired	(22,607)
Purchases of investments	(435,961)	(475,777)	(410,551)
Maturities of investments	313,298	385,613	188,819
Sales of investments	46,559	100,094	117,679
Purchases of property, plant and equipment	(17,705)	(15,567)	(15,819)
Proceeds from sale of assets	50	7	2,318
Net proceeds from sale of discontinued operations			15,582
Other	(1,501)	(448)	(3,651)
Net cash used in investing activities	(117,867)	(6,078)	(105,623)
Cash flows from financing activities:
Proceeds from short-term borrowings	2,896	41,802	119,209
Payments on short-term borrowings	(9,348)	(39,915)	(132,872)
Repurchases of Common Stock	(11,501)	(2,007)
Net proceeds related to employee stock awards	1,564	28,546	6,524
Dividend payments	(32,686)	(31,373)
Excess tax benefit from stock-based compensation	2,105	5,338	2,112
Net cash (used in) provided by financing activities	(46,970)	2,391	(5,027)
Effect of exchange rate changes on cash and cash equivalents	2,342	(1,909)	(1,353)
(Decrease) increase in cash and cash equivalents	(25,328)	150,440	51,467
Cash and cash equivalents at beginning of year	312,916	162,476	111,009
Cash and cash equivalents at end of year	287,588	312,916	162,476
Cash paid during the period for:
Interest	212	144	78
Income taxes	$ 18,033	$ 52,561	$ 47,446

Business Description

12 Months Ended

Dec. 31, 2012

Business Description

1)	Business Description

MKS Instruments, Inc. (“MKS” or the “Company”) was founded in 1961 and is a global provider of instruments, subsystems and process control solutions that measure, control, power, monitor and analyze critical parameters of advanced manufacturing processes to improve process performance and productivity of advanced manufacturing processes. MKS groups its products into four product groups based upon the similarity of the product function, type of product and manufacturing processes. These four groups of products are: Instruments and Control Products, Power and Reactive Gas Products, Vacuum Products and Analytical Solutions Group Products. MKS’ products are derived from its core competencies in pressure measurement and control, materials delivery, gas composition analysis, control and information technology, power and reactive gas generation and vacuum technology.

Effective in the second quarter of fiscal 2012, the Company changed its reporting segments from one to four segments based upon the information that is provided to the Company’s chief operating decision maker. The Company’s new reportable segments are: Advanced Manufacturing Capital Equipment, Analytical Solutions Group, Europe Region Sales & Service, and Asia Region Sales & Service.

Basis of Presentation

12 Months Ended

Dec. 31, 2012

Basis of Presentation

2)	Basis of Presentation

The consolidated financial statements include the accounts of MKS Instruments, Inc. and its wholly owned subsidiaries. All significant intercompany accounts and transactions have been eliminated in consolidation.

Use of Estimates

The consolidated financial statements have been prepared in accordance with accounting principles generally accepted in the United States of America (“U.S. GAAP”). The preparation of these financial statements requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and the disclosure of contingent liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting period. On an on-going basis, management evaluates its estimates and judgments, including those related to revenue recognition and allowance for doubtful accounts, inventory, warranty costs, stock-based compensation, intangible assets, goodwill, other long-lived assets, in process research and development and other acquisition expenses and income taxes. Management bases its estimates and judgments on historical experience and on various other factors that are believed to be reasonable under the circumstances, the results of which form the basis for making judgments about the carrying values of assets and liabilities that are not readily apparent from other sources. Actual results may differ from these estimates under different assumptions or conditions.

Summary of Significant Accounting Policies

12 Months Ended

Dec. 31, 2012

Summary of Significant Accounting Policies

3)	Summary of Significant Accounting Policies

Revenue Recognition and Accounts Receivable Allowances

Revenue from product sales is recorded upon transfer of title and risk of loss to the customer provided that there is evidence of an arrangement, the sales price is fixed or determinable, and collection of the related receivable is reasonably assured. In most transactions, the Company has no obligations to customers after the date products are shipped other than pursuant to warranty obligations. In some instances, the Company provides installation, training, support and services to customers after the product has been shipped. For revenue arrangements with multiple deliverables, the Company allocates revenue to each element based upon their relative selling price using vendor-specific objective evidence (“VSOE”), or third-party evidence (“TPE”) or based upon the relative selling price using estimated prices if VSOE or TPE does not exist. The Company then recognizes revenue on each deliverable in accordance with its policies for product and service revenue recognition. The Company provides for the estimated costs to fulfill customer warranty obligations upon the recognition of the related revenue. Shipping and handling fees, if any, billed to customers are recognized as revenue. The related shipping and handling costs are recognized in cost of sales. Accounts receivable allowances include sales returns and bad debt allowances. The Company monitors and tracks the amount of product returns and reduces revenue at the time of shipment for the estimated amount of such future returns, based on historical experience. The Company makes estimates evaluating its allowance for doubtful accounts. The Company continuously monitors collections and payments from its customers and maintains a provision for estimated credit losses based upon its historical experience and any specific customer collection issues that it has identified.

Research and Development

Research and development costs are expensed as incurred and consist mainly of compensation related expenses and project materials. The Company’s research and development efforts include numerous projects, which generally have a duration of 3 to 30 months. Acquired in-process research and development (“IPR&D”) expenses, which are capitalized at fair value as an intangible asset until the related project is completed, are then amortized over the estimated useful life of the product. Projects that are abandoned are immediately written off.

Advertising Costs

Advertising costs are expensed as incurred and were immaterial in 2012, 2011 and 2010.

Stock-Based Compensation

The accounting for share-based compensation expense requires the measurement and recognition of compensation expense for all share-based payment awards made to employees and directors based on estimated fair values. For restricted stock units (“RSUs”), the fair value is the fair value on the date of grant. The Company also provides employees the opportunity to purchase shares through an Employee Stock Purchase Plan (“ESPP”). For shares issued under its ESPP, the Company has estimated the fair value on the date of grant using the Black Scholes pricing model, which is affected by the Company’s stock price as well as assumptions regarding a number of complex and subjective variables. These variables include the Company’s expected stock price volatility over the term of the awards, expected life, risk free interest rate and expected dividends. The Company is also required to estimate forfeitures at the time of grant and revise those estimates in subsequent periods if actual forfeitures differ from those estimates.

Management determined that blended volatility, a combination of historical and implied volatility, is more reflective of market conditions and a better indicator of expected volatility than historical or implied volatility alone. The assumptions used in calculating the fair value of share-based payment awards represent management’s best estimates, but these estimates involve inherent uncertainties and the application of management judgment. As a result, if factors change and the Company uses different assumptions, its stock-based compensation expense could be materially different in the future.

Other Comprehensive Income

For foreign subsidiaries where the functional currency is the local currency, assets and liabilities are translated into U.S. dollars at the current exchange rate on the balance sheet date. Revenue and expenses are translated at average rates of exchange prevailing during the year. Translation adjustments resulting from this process are recorded to Other Comprehensive Income (“OCI”).

Unrealized gains and losses on securities classified as available-for-sale are included in accumulated other comprehensive income in consolidated stockholders’ equity.

For derivative instruments designated as cash-flow hedges, the effective portion of the derivative’s gain (loss) is initially reported as a component of OCI and is subsequently recognized in earnings when the hedged exposure is recognized in earnings.

Net Income Per Share

Basic net income per share is based on the weighted average number of common shares outstanding, and diluted net income per share is based on the weighted average number of common shares outstanding and all potential dilutive common equivalent shares outstanding. The dilutive effect of options is determined under the treasury stock method using the average market price for the period. Common equivalent shares are included in the per share calculations when the effect of their inclusion would be dilutive.

Cash and Cash Equivalents and Investments

All highly liquid investments with a maturity date of three months or less at the date of purchase are considered to be cash equivalents. The appropriate classification of investments in securities is determined at the time of purchase. Debt securities that the Company does not have the intent and ability to hold to maturity are classified as “available-for-sale” and are carried at fair value. Mutual funds that are bought and held principally for the purpose of selling them in the near term are classified as “trading” and are carried at fair value.

The Company reviews its investment portfolio on a monthly basis to identify and evaluate individual investments that have indications of possible impairment. The factors considered in determining whether a loss is other-than-temporary include: the length of time and extent to which fair market value has been below the cost basis, the financial condition and near-term prospects of the issuer, credit quality, and the Company’s ability to hold the investment for a period of time sufficient to allow for any anticipated recovery in fair value.

Concentrations of Credit Risk

The Company’s significant concentrations of credit risk consist principally of cash and cash equivalents, investments, forward exchange contracts and trade accounts receivable. The Company maintains cash and cash equivalents with financial institutions including some banks with which it had borrowings. The Company maintains investments primarily in U.S. Treasury and government agency securities and corporate debt securities. The Company enters into forward currency contracts with high credit-quality financial institutions in order to minimize credit risk exposure. The Company’s customers are primarily concentrated in the semiconductor industry, and a limited number of customers account for a significant portion of the Company’s revenues. The Company regularly monitors the creditworthiness of its customers and believes it has adequately provided for potential credit loss exposures. Credit is extended for all customers based primarily on financial condition and collateral is not required.

The Company had one customer comprising 14%, 14% and 16% of net sales for 2012, 2011 and 2010, respectively and another customer comprising 10%, 7% and 9% of net sales for 2012, 2011 and 2010. During the years 2012, 2011 and 2010, approximately 62%, 61% and 64% of the Company’s net sales, respectively, were to semiconductor capital equipment manufacturers and semiconductor device manufacturers. There was one customer comprising 10% or more of the Company’s accounts receivable balance as of December 31, 2012.

Inventories

Inventories are stated at the lower of cost or market, cost being determined using a standard costing system which approximates cost based on a first-in, first-out method. The Company regularly reviews inventory quantities on hand and records a provision to write-down excess and obsolete inventory to its estimated net realizable value, if less than cost, based primarily on its estimated forecast of product demand.

Property, Plant and Equipment

Property, plant and equipment are stated at cost. Equipment acquired under capital leases is recorded at the present value of the minimum lease payments required during the lease period. Expenditures for major renewals and betterments that extend the useful lives of property, plant and equipment are capitalized. Expenditures for maintenance and repairs are charged to expense as incurred. When assets are sold or otherwise disposed of, the cost and related accumulated depreciation are eliminated from the accounts and any resulting gain or loss is recognized in earnings.

Depreciation is provided on the straight-line method over the estimated useful lives of twenty to thirty-one and one-half years for buildings and three to seven years for machinery and equipment, furniture and fixtures and office equipment, which includes enterprise resource planning software. Leasehold improvements are amortized over the shorter of the lease term or the estimated useful life of the leased asset.

Intangible Assets

Intangible assets resulting from the acquisitions of businesses are estimated by management based on the fair value of assets acquired. These include acquired customer lists, technology, patents, trade names, covenants not to compete and IPR&D. Intangible assets are amortized from two to ten years on a straight-line basis which represents the estimated periods of benefit and the expected pattern of consumption.

Goodwill

Goodwill is the amount by which the cost of acquired net assets exceeded the fair value of those net assets on the date of acquisition. The Company allocates goodwill to reporting units at the time of acquisition or when there is a change in the reporting structure and bases that allocation on which reporting units will benefit from the acquired assets and liabilities. Reporting units are defined as operating segments or one level below an operating segment, referred to as a component. The Company assesses goodwill for impairment on an annual basis as of October 31 or more frequently when events and circumstances occur indicating that the recorded goodwill may be impaired.

The Company has the option of either assessing qualitative factors to determine whether it is necessary to perform the current two-step impairment test or performing the two-step impairment test without doing the qualitative assessment. In the current fiscal year, the Company performed the quantitative two-step goodwill impairment analysis. In the first step, the Company compares the fair value of its reporting unit to its carrying value. If the carrying value of the net assets assigned to the reporting unit exceeds the fair value of our reporting unit, then the second step of the impairment test is performed in order to determine the implied fair value of the reporting unit’s goodwill. If the carrying value of the Company’s reporting unit’s goodwill exceeds its implied fair value, then the Company records an impairment loss equal to the difference.

The Company determined the fair value of its reporting units using a discounted cash flow analysis, derived from internal earnings and internal and external market forecasts. Discount rates are based on a weighted average cost of capital (“WACC”), which represents the average rate a business must pay its providers of debt and equity. The WACC used to test goodwill was derived from a group of comparable companies. The cash flows employed in the DCF analysis were derived from internal earnings and forecasts and external market forecast. Assumptions in estimating future cash flows are subject to a high degree of judgment and complexity. The Company makes every effort to forecast these future cash flows as accurately as possible with the information available at the time the forecast is developed.

As of October 31, 2012, the Company performed its annual impairment assessment of goodwill using the two-step analysis and determined that there was no impairment.

Impairment of Long-Lived Assets

The Company evaluates the recoverability of its long-lived assets whenever events and changes in circumstances indicate that the carrying amount of an asset may not be fully recoverable. This periodic review may result in an adjustment of estimated depreciable lives or asset impairment. When indicators of impairment are present, the carrying values of the asset are evaluated in relation to their operating performance and future undiscounted cash flows of the underlying business. If the future undiscounted cash flows are less than their carrying value, impairment exists. The impairment is measured as the difference between the carrying value and the fair value of the underlying asset. Fair values are based on estimates of market prices and assumptions concerning the amount and timing of estimated future cash flows and assumed discount rates, reflecting varying degrees of perceived risk.

Foreign Exchange

The functional currency of the majority of the Company’s foreign subsidiaries is the applicable local currency. For those subsidiaries, assets and liabilities are translated to U.S. dollars at year-end exchange rates. Income and expense accounts are translated at the average exchange rates prevailing during the year. The resulting translation adjustments are included in accumulated other comprehensive income in consolidated stockholders’ equity. Foreign exchange transaction gains and losses, which arise from transaction activity, are reflected in selling, general and administrative expenses in the statement of operations. Net foreign exchange gains and losses resulting from re-measurement are included in selling general and administrative expense and were a gain of $301, a loss of $126 and a loss of $728, respectively, for the years ended December 31, 2012, 2011 and 2010. These amounts do not reflect the corresponding gain (loss) from foreign exchange contracts. See Note 7 “Derivatives” regarding foreign exchange contracts.

Income Taxes

The Company records income taxes using the asset and liability method. Deferred income tax assets and liabilities are recognized for the future tax consequences attributable to differences between the financial statement carrying amounts of existing assets and liabilities and their respective income tax bases, and operating loss and tax credit carryforwards. On a quarterly basis, the Company evaluates both the positive and negative evidence that affects the realizability of net deferred tax assets and assesses the need for a valuation allowance. The future benefit to be derived from its deferred tax assets is dependent upon its ability to generate sufficient future taxable income to realize the assets. The Company records a valuation allowance to reduce its net deferred tax assets to the amount that is more likely than not to be realized. To the extent the Company establishes a valuation allowance an expense will be recorded as a component of the provision for income taxes on the statement of operations. As of December 31, 2010, the Company had a valuation allowance of $25,267 primarily related to capital losses incurred from its divested operations, and state tax credit carryforwards. During 2011, the Company increased its valuation allowance by $1,208 primarily related to capital losses incurred from its foreign affiliates as management determined it is more likely than not that the deferred tax assets related to these attributes will not be realized. As a result, the valuation allowance was $26,475 at December 31, 2011. During 2012, the Company increased its valuation allowance by $1,022 primarily related to an increase in state tax credit carryforwards as management determined it is more likely than not that the deferred tax assets related to these attributes will not be realized. As a result, the valuation allowance is $27,497 at December 31, 2012.

Accounting for income taxes requires a two-step approach to recognize and measure uncertain tax positions. The first step is to evaluate the tax position for recognition by determining if, based on the technical merits, it is more likely than not that the position will be sustained upon audit, including resolutions of related appeals or litigation processes, if any. The second step is to measure the tax benefit as the largest amount that is more than 50% likely of being realized upon ultimate settlement. The Company reevaluates these uncertain tax positions on a quarterly basis. This evaluation is based on factors including, but not limited to, changes in facts or circumstances, changes in tax law, effectively settled issues under audit and new audit activity. Any change in these factors could result in the recognition of a tax benefit or an additional charge to the tax provision.

Recently Issued Accounting Pronouncements

12 Months Ended

Dec. 31, 2012

Recently Issued Accounting Pronouncements

4)	Recently Issued Accounting Pronouncements

In June 2011, the Financial Accounting Standards Board (“FASB”) issued an Accounting Standards Update (“ASU”) which eliminates the option to present the components of other comprehensive income as part of the statement of equity and requires an entity to present the total of comprehensive income, the components of net income, and the components of other comprehensive income either in a single continuous statement of comprehensive income or in two separate but consecutive statements. The amendments were effective retrospectively for fiscal years, and interim periods within those years, beginning after December 15, 2011. The ASU required changes in presentation only. The Company adopted this new ASU in the first quarter of 2012, electing to present the components of other comprehensive income as one continuous statement. This new ASU did not have a material effect on the Company’s consolidated financial statements.

In May 2011, the FASB issued an ASU which applies to all reporting entities that are required or permitted to measure or disclose the fair value of an asset, a liability, or an instrument classified in a reporting entity’s shareholders’ equity in the financial statements. The amendments do not extend the use of fair value accounting, but provide guidance on how it should be applied where its use is already required or permitted by other standards within U.S. GAAP. The amendments changed the wording used to describe many requirements in U.S. GAAP for measuring fair value and for disclosing information about fair value measurements. Additionally, the ASU clarifies the FASB’s intent about the application of existing fair value measurements. The amendments in this ASU are to be applied prospectively. For public entities, the amendments were effective during interim and annual periods beginning after December 15, 2011. The Company adopted the new ASU in the first quarter of 2012. This new ASU did not have a material effect on the Company’s consolidated financial statements.

In December 2011, the FASB issued ASU No. 2011-11, “Disclosures about Offsetting Assets and Liabilities.” This ASU is intended to enhance the understanding of the effects of netting arrangements on an entity’s financial statements, including financial instruments and derivative instruments that are either offset or subject to a master netting arrangement. The scope of this ASU includes derivatives, sale and repurchase agreements, reverse sale and repurchase agreements, and securities borrowing and lending arrangements. In January 2013, the FASB issued ASU No. 2013-01 “Clarifying the Scope of Disclosures about Offsetting Assets and Liabilities.” This standard provided additional guidance on the scope of ASU 2011-11. The provisions of this ASU are effective for interim and annual periods beginning on or after January 1, 2013. This new ASU is not expected to have a material effect on the Company’s consolidated financial statements.

- Definition

The entire disclosure of changes in accounting principles, including adoption of new accounting pronouncements, that describes the new methods, amount and effects on financial statement line items.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Direct Effects of a Change in Accounting Principle
-URI http://asc.fasb.org/extlink&oid=6510796

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Change in Accounting Principle
-URI http://asc.fasb.org/extlink&oid=6507316

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 250
-SubTopic 10
-Section 50
-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=6801783&loc=d3e22583-107794

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Indirect Effects of a Change in Accounting Principle
-URI http://asc.fasb.org/extlink&oid=6515603

Reference 5: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 270
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.10-01.(b)(6))
-URI http://asc.fasb.org/extlink&oid=6958853&loc=d3e46468-122699

Reference 6: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 250
-SubTopic 10
-Section 50
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=6801783&loc=d3e22580-107794

Reference 7: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Accounting Change
-URI http://asc.fasb.org/extlink&oid=6503790

Reference 8: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 250
-SubTopic 10
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6801783&loc=d3e22499-107794

Reference 9: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Retrospective Application
-URI http://asc.fasb.org/extlink&oid=6523989

Reference 10: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 270
-SubTopic 10
-Section 45
-Paragraph 12
-URI http://asc.fasb.org/extlink&oid=6372559&loc=d3e725-108305

Reference 11: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 270
-SubTopic 10
-Section 45
-Paragraph 13
-URI http://asc.fasb.org/extlink&oid=6372559&loc=d3e765-108305

Reference 12: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 01
-Paragraph b
-Subparagraph 6
-Article 10

+ Details

Investments

12 Months Ended

Dec. 31, 2012

Investments

5)	Investments

The fair value of short-term investments with maturities or estimated lives of less than one year consists of the following:


	Years Ended December 31,
	2012		2011
Available-for-sale investments:
Time deposits	$	52	$	37
Bankers acceptance drafts		242		962
U.S. treasury obligations		13,054		29,404
U.S. agency obligations		313,514		221,565

		326,862		251,968
Trading investments:
Mutual funds(1)		791		635

	$	327,653	$	252,603

(1)	The mutual funds are associated with the Company’s supplemental defined contribution retirement obligations.

The fair value of long-term available-for-sale investments with maturities or estimated lives of more than one year consists of the following:


	Years Ended December 31,
	2012		2011
U.S. agency obligations	$	12,158	$	7,873

The following table shows the gross unrealized gains and (losses) aggregated by investment category for short-term and long-term available-for-sale investments:


	Cost		Gross Unrealized Gains		Gross Unrealized (Losses)			Estimated Fair Value
As of December 31, 2012:
Short-term investments:
Available-for-sale investments:
Time deposits	$	52	$	—	$	—		$	52
Bankers acceptance drafts		242		—		—			242
U.S. treasury obligations		13,045		9		—			13,054
U.S. agency obligations		313,262		258		(6	)		313,514

	$	326,601	$	267	$	(6	)	$	326,862

Long-term investments:
U.S. agency obligations	$	12,156	$	2	$	—		$	12,158


	Cost		Gross Unrealized Gains		Gross Unrealized (Losses)			Estimated Fair Value
As of December 31, 2011:
Short-term investments:
Available-for-sale investments:
Time deposits	$	37	$	—	$	—		$	37
Bankers acceptance drafts		962		—		—			962
U.S. treasury obligations		29,393		11		—			29,404
U.S. agency obligations		221,516		56		(7	)		221,565

	$	251,908	$	67	$	(7	)	$	251,968

Long-term investments:
U.S. agency obligations	$	7,876	$	—	$	(3	)	$	7,873

Interest income is accrued as earned. Dividend income is recognized as income on the date the stock trades “ex-dividend.” The cost of marketable securities sold is determined by the specific identification method and realized gains or losses are reflected in income and was not material in 2012, 2011 and 2010.

The unrealized gains and losses for trading investments were immaterial in 2012.

- Definition

The entire disclosure for investments in certain debt and equity securities.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
-Glossary Debt Security
-URI http://asc.fasb.org/extlink&oid=6509901

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 30
-Section 50
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=6379141&loc=d3e15032-111544

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
-SubTopic 10
-Section 50
-Paragraph 6
-URI http://asc.fasb.org/extlink&oid=6872113&loc=d3e27290-111563

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
-Glossary Equity Security
-URI http://asc.fasb.org/extlink&oid=6511694

Reference 5: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
-SubTopic 10
-Section 50
-Paragraph 5
-URI http://asc.fasb.org/extlink&oid=6872113&loc=d3e27232-111563

Reference 6: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
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-SubTopic 320
-Section 50
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=6957658&loc=d3e62557-112803

Reference 7: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
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-URI http://asc.fasb.org/extlink&oid=6872113&loc=d3e27357-111563

Reference 8: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
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Reference 9: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
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-URI http://asc.fasb.org/extlink&oid=6872113&loc=d3e27405-111563

Reference 10: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 115
-Paragraph 3, 19, 20, 21, 22, 137
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

+ Details

Fair Value Measurements

12 Months Ended

Dec. 31, 2012

Fair Value Measurements

6)	Fair Value Measurements

In accordance with the provisions of fair value accounting, a fair value measurement assumes that the transaction to sell an asset or transfer a liability occurs in the principal market for the asset or liability or, in the absence of a principal market, the most advantageous market for the asset or liability and defines fair value based upon an exit price model.

The fair value measurement guidance establishes a fair value hierarchy which requires an entity to maximize the use of observable inputs and minimize the use of unobservable inputs when measuring fair value. The guidance describes three levels of inputs that may be used to measure fair value:


Level 1		Quoted prices in active markets for identical assets or liabilities as of the reporting date. Active markets are those in which transactions for the asset or liability occur in sufficient frequency and volume to provide pricing information on an ongoing basis.
Level 2		Observable inputs other than Level 1 prices, such as quoted prices for similar assets or liabilities; quoted prices in markets that are not active; or other inputs that are observable or can be corroborated by observable market data for substantially the full term of the assets or liabilities. Level 2 assets and liabilities include debt securities with quoted prices that are traded less frequently than exchange-traded instruments or securities or derivative contracts that are valued using a pricing model with inputs that are observable in the market or can be derived principally from or corroborated by observable market data.
Level 3		Unobservable inputs that are supported by little or no market activity and that are significant to the fair value of the assets or liabilities. Level 3 assets and liabilities include financial instruments whose value is determined using pricing models, discounted cash flow methodologies, or similar techniques, as well as instruments for which the determination of fair value requires significant management judgment or estimation.

In certain cases, the inputs used to measure fair value may fall into different levels of the fair value hierarchy. In such cases, we categorize such assets and liabilities based on the lowest level input that is significant to the fair value measurement in its entirety. Our assessment of the significance of a particular input to the fair value measurement in its entirety requires judgment and considers factors specific to the asset.

Assets and liabilities of the Company measured at fair value on a recurring basis as of December 31, 2012, are summarized as follows:


			Fair Value Measurements at Reporting Date Using
Description	December 31, 2012		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
Assets:
Cash equivalents:
Money market funds	$	51,291	$	51,291	$	—	$	—
Bankers acceptance drafts		16		—		16		—
Trading securities:
Mutual funds		791		791		—		—
Available-for-sale securities:
Bankers acceptance drafts		242		—		242		—
U.S. treasury obligations		13,054		—		13,054		—
U.S. agency obligations		325,672		295,665		30,007		—
Derivatives — currency forward contracts		961		—		961		—

Total assets	$	392,027	$	347,747	$	44,280	$	—

Liabilities:
Derivatives — currency forward contracts	$	1,310	$	—	$	1,310	$	—

Reported as follows:
Assets:
Cash and cash equivalents(1)	$	51,307	$	51,291	$	16	$	—
Short-term investments(2)		327,601		284,298		43,303		—
Other current assets		961		—		961		—

	$	379,869	$	335,589	$	44,280	$	—

Long-term investments	$	12,158	$	12,158	$	—	$	—

Liabilities:
Other current liabilities	$	1,310	$	—	$	1,310	$	—

(1)	The cash and cash equivalent amounts presented in the table above do not include cash of $185,143 and non-negotiable time deposits of $51,138 as of December 31, 2012.

(2)	The short-term investments presented in the table above do not include non-negotiable time deposits of $52 as of December 31, 2012.

Assets and liabilities of the Company measured at fair value on a recurring basis as of December 31, 2011, are summarized as follows:


			Fair Value Measurements at Reporting Date Using
Description	December 31, 2011		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
Assets:
Cash equivalents:
Money market funds	$	137,976	$	137,976	$	—	$	—
Trading securities:
Mutual funds		635		635		—		—
Available-for-sale securities:
Bankers acceptance drafts		962		—		962		—
U.S. treasury obligations		29,404		—		29,404		—
U.S. agency obligations		229,438		147,546		81,892		—
Derivatives — currency forward contracts		531		—		531		—

Total assets	$	398,946	$	286,157	$	112,789	$	—

Liabilities:
Derivatives — currency forward contracts	$	1,054	$	—	$	1,054	$	—

Reported as follows:
Assets:
Cash and cash equivalents(1)	$	137,976	$	137,976	$	—	$	—
Short-term investments(2)		252,566		140,308		112,258		—
Other current assets		531		—		531		—

	$	391,073	$	278,284	$	112,789	$	—

Long-term investments	$	7,873	$	7,873	$	—	$	—

Liabilities:
Other current liabilities	$	1,054	$	—	$	1,054	$	—

(1)	The cash and cash equivalent amounts presented in the table above do not include cash of $146,035 and non-negotiable time deposits of $28,905 as of December 31, 2011.

(2)	The short-term investments presented in the table above do not include non-negotiable time deposits of $37 as of December 31, 2011.

Money Market Funds

Money market funds are cash and cash equivalents, and are classified within Level 1 of the fair value hierarchy.

Trading Mutual Fund Investments

As of December 31, 2012, trading investments consisted of certain U.S. and international equity mutual funds and government agency fixed income mutual funds. In 2011, management changed the classification of the investments from available-for-sale to trading investments. These investments were classified as available-for-sale at December 31, 2011. These investments are classified within Level 1 of the fair value hierarchy.

Available-For-Sale Investments

As of December 31, 2012 and 2011, available-for-sale investments consisted of time deposits and drafts denominated in the Euro currency, U.S. treasury obligations and U.S. agency obligations. As of December 31, 2011, U.S. agency obligations include certain corporate obligations issued under the government’s Term Loan Guarantee Program which removes any credit risk associated with the corporate issuing entity, as they become obligations of the U.S. government should the corporate issuer be unable to honor its obligations. There were no corporate obligations that were issued under the government’s Term Loan Guarantee Program as of December 31, 2012.

The Company measures its debt and equity investments at fair value. The Company’s available-for-sale investments are classified within Level 1 and Level 2 of the fair value hierarchy.

Derivatives

As a result of the Company’s global operating activities, the Company is exposed to market risks from changes in foreign currency exchange rates, which may adversely affect its operating results and financial position. When deemed appropriate, the Company minimizes its risks from foreign currency exchange rate fluctuations through the use of derivative financial instruments. The principal market in which the Company executes its foreign currency contracts is the institutional market in an over-the-counter environment with a relatively high level of price transparency. The market participants usually are large commercial banks. The forward foreign currency exchange contracts are valued using broker quotations, or market transactions and are classified within Level 2 of the fair value hierarchy.

- Definition

The entire disclosure for the fair value of financial instruments (as defined), including financial assets and financial liabilities (collectively, as defined), and the measurements of those instruments as well as disclosures related to the fair value of non-financial assets and liabilities. Such disclosures about the financial instruments, assets, and liabilities would include: (1) the fair value of the required items together with their carrying amounts (as appropriate); (2) for items for which it is not practicable to estimate fair value, disclosure would include: (a) information pertinent to estimating fair value (including, carrying amount, effective interest rate, and maturity, and (b) the reasons why it is not practicable to estimate fair value; (3) significant concentrations of credit risk including: (a) information about the activity, region, or economic characteristics identifying a concentration, (b) the maximum amount of loss the entity is exposed to based on the gross fair value of the related item, (c) policy for requiring collateral or other security and information as to accessing such collateral or security, and (d) the nature and brief description of such collateral or security; (4) quantitative information about market risks and how such risks are managed; (5) for items measured on both a recurring and nonrecurring basis information regarding the inputs used to develop the fair value measurement; and (6) for items presented in the financial statement for which fair value measurement is elected: (a) information necessary to understand the reasons for the election, (b) discussion of the effect of fair value changes on earnings, (c) a description of [similar groups] items for which the election is made and the relation thereof to the balance sheet, the aggregate carrying value of items included in the balance sheet that are not eligible for the election; (7) all other required (as defined) and desired information.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=7578670&loc=d3e19207-110258

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 825
-SubTopic 10
-Section 50
-Paragraph 30
-URI http://asc.fasb.org/extlink&oid=6957238&loc=d3e14172-108612

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 825
-SubTopic 10
-Section 50
-Paragraph 21
-URI http://asc.fasb.org/extlink&oid=7491637&loc=d3e13537-108611

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 825
-SubTopic 10
-Section 50
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-URI http://asc.fasb.org/extlink&oid=6957238&loc=d3e14064-108612

Reference 5: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 825
-SubTopic 10
-Section 50
-Paragraph 16
-URI http://asc.fasb.org/extlink&oid=7491637&loc=d3e13504-108611

Reference 6: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 825
-SubTopic 10
-Section 50
-Paragraph 10
-URI http://asc.fasb.org/extlink&oid=7491637&loc=d3e13433-108611

Reference 7: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 107
-Paragraph 15B
-Subparagraph a, b
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 8: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 133
-Paragraph 44A, 44B
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 9: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 159
-Paragraph 17-22, 27, 28
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 10: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 107
-Paragraph 15A
-Subparagraph a-d
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 11: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 107
-Paragraph 15C, 15D
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 12: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 157
-Paragraph 32, 33, 34
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 13: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 107
-Paragraph 3, 10, 14, 15
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

+ Details

Derivatives

12 Months Ended

Dec. 31, 2012

Derivatives

7)	Derivatives

The Company enters into derivative instruments for risk management purposes only, including derivatives designated as hedging instruments and those utilized as economic hedges. The Company operates internationally and, in the normal course of business, is exposed to fluctuations in interest rates and foreign exchange rates. These fluctuations can increase the costs of financing, investing and operating the business. The Company has used derivative instruments, such as forward contracts, to manage certain foreign currency exposure.

By nature, all financial instruments involve market and credit risks. The Company enters into derivative instruments with major investment grade financial institutions and no collateral is required. The Company has policies to monitor the credit risk of these counterparties. While there can be no assurance, the Company does not anticipate any material non-performance by any of these counterparties.

The Company hedges a portion of its forecasted foreign currency denominated intercompany sales of inventory, over a maximum period of eighteen months, using forward foreign exchange contracts accounted for as cash-flow hedges related to Japanese, South Korean, British and Euro currencies. To the extent these derivatives are effective in off-setting the variability of the hedged cash flows, and otherwise meet the hedge accounting criteria, changes in the derivatives’ fair value are not included in current earnings but are included in OCI in stockholders’ equity. These changes in fair value will subsequently be reclassified into earnings, as applicable, when the forecasted transaction occurs. To the extent that a previously designated hedging transaction is no longer an effective hedge, any ineffectiveness measured in the hedging relationship is recorded currently in earnings in the period it occurs. The cash flows resulting from forward exchange contracts are classified in the consolidated statements of cash flows as part of cash flows from operating activities. The Company does not enter into derivative instruments for trading or speculative purposes.

To the extent the hedge accounting criteria is not met, the related foreign currency forward contracts are considered as economic hedges and changes in the fair value of these contracts are recorded immediately in earnings in the period in which they occur. These include hedges that are used to reduce exchange rate risks arising from the change in fair value of certain foreign currency denominated assets and liabilities (i.e., payables, receivables) and other economic hedges where the hedge accounting criteria were not met.

As of December 31, 2012 and 2011, the Company had outstanding forward foreign exchange contracts with gross notional values of $41,448 and $36,119, respectively. The following tables provide a summary of the primary net hedging positions and corresponding fair values held as of December 31, 2012 and 2011:


	December 31, 2012
Currency Hedged (Buy/Sell)	Gross Notional Value		Fair Value(1)
U.S. Dollar/Japanese Yen	$	13,992	$	961
U.S. Dollar/South Korean Won		19,374		(1,180	)
U.S. Dollar/Euro		4,217		(57	)
U.S. Dollar/U.K. Pound Sterling		3,865		(73	)

Total	$	41,448	$	(349	)


	December 31, 2011
Currency Hedged (Buy/Sell)	Gross Notional Value		Fair Value(1)
U.S. Dollar/Japanese Yen	$	18,676	$	(961	)
U.S. Dollar/South Korean Won		10,799		60
U.S. Dollar/Euro		3,869		288
U.S. Dollar/U.K. Pound Sterling		2,775		90

Total	$	36,119	$	(523	)

(1)	Represents the net receivable (payable) amount included in the consolidated balance sheet.

The following table provides a summary of the fair value amounts of the Company’s derivative instruments:


	Years Ended December 31,
Derivatives Designated as Hedging Instruments	2012			2011
Derivative assets:
Forward exchange contracts	$	961		$	531
Derivative liabilities:
Forward exchange contracts		(1,310	)		(1,054	)

Total net derivative (liability) designated as hedging instruments(1)	$	(349	)	$	(523	)

(1)

The derivative asset of $961 and derivative liability of $1,310 are classified in other current assets and other current liabilities, respectively, in the consolidated balance sheet as of December 31, 2012. The derivative asset of $531 and derivative liability of $1,054 are classified in other current assets and other current liabilities, respectively, in the consolidated balance sheet as of December 31, 2011.

The net amount of existing losses as of December 31, 2012 that is expected to be reclassified from accumulated OCI into earnings within the next twelve months is not immaterial.

The following table provides a summary of the gains (losses) on derivatives designated as hedging instruments:


	Years Ended December 31,
Derivatives Designated as Cash Flow Hedging Relationships	2012			2011			2010
Forward exchange contracts:
Net gain (loss) recognized in OCI(1)	$	936		$	4,311		$	(3,346	)
Net (loss) reclassified from accumulated OCI into income(2)	$	(930	)	$	(4,021	)	$	(957	)

(1)	Net change in the fair value of the effective portion classified in OCI.

(2)	Effective portion classified as selling, general and administrative in 2012 and 2011 and as cost of products in 2010.

The following table provides a summary of (losses) on derivatives not designated as hedging instruments:


	Years Ended December 31,
Derivatives Not Designated as Hedging Instruments	2012			2011		2010
Forward exchange contracts:
Net (loss) recognized in income(1)	$	(1,606	)	$	—	$	—

(1)	The Company has a forward foreign exchange contract that hedges an intercompany loan with its Korean subsidiary. This hedge does not qualify for hedge accounting and any gains (losses) are recorded immediately in selling, general and administrative expenses.

- Definition

The entire disclosure for the entity's entire derivative instruments and hedging activities. Describes an entity's risk management strategies, derivatives in hedging activities and non-hedging derivative instruments, the assets, obligations, liabilities, revenues and expenses arising therefrom, and the amounts of and methodologies and assumptions used in determining the amounts of such items.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 30
-Section 45
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6441202&loc=d3e80720-113993

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
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Reference 20: http://www.xbrl.org/2003/role/presentationRef
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-URI http://asc.fasb.org/extlink&oid=6881521&loc=d3e23780-122690

Reference 21: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 133
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-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 22: http://www.xbrl.org/2003/role/presentationRef
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-Name Statement of Financial Accounting Standard (FAS)
-Number 133
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-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

+ Details

Inventories

12 Months Ended

Dec. 31, 2012

Inventories

8)	Inventories

Inventories consist of the following:


	Years Ended December 31,
	2012		2011
Raw material	$	76,610	$	78,501
Work-in-process		19,708		21,298
Finished goods		38,321		53,833

	$	134,639	$	153,632

Inventory related excess and obsolete charges of $15,028, $14,857 and $13,230 were recorded in cost of products in the years ended December 31, 2012, 2011 and 2010, respectively.

Property, Plant and Equipment

12 Months Ended

Dec. 31, 2012

Property, Plant and Equipment

9)	Property, Plant and Equipment

Property, plant and equipment consist of the following:


	Years Ended December 31,
	2012		2011
Land	$	9,188	$	8,119
Buildings		68,831		64,962
Machinery and equipment		115,032		107,304
Furniture and fixtures, office equipment and software		51,669		48,516
Leasehold improvements		18,003		18,617
Construction in progress		9,227		7,075

		271,950		254,593
Less: accumulated depreciation and amortization		191,434		182,106

	$	80,516	$	72,487

Depreciation and amortization of property, plant and equipment totaled $13,406, $11,965 and $12,298 for the years ended 2012, 2011 and 2010, respectively. In 2010, the Company reclassified $85 of depreciation of property, plant and equipment to discontinued operations.

- Definition

The entire disclosure for long-lived, physical assets that are used in the normal conduct of business to produce goods and services and not intended for resale. Examples include land, buildings, machinery and equipment, and other types of furniture and equipment including, but not limited to, office equipment, furniture and fixtures, and computer equipment and software. This disclosure may include property plant and equipment accounting policies and methodology, a schedule of property, plant and equipment gross, additions, deletions, transfers and other changes, depreciation, depletion and amortization expense, net, accumulated depreciation, depletion and amortization expense and useful lives, income statement disclosures, assets held for sale and public utility disclosures.

+ References + Details

Acquisition

12 Months Ended

Dec. 31, 2012

Acquisition

10)

Acquisition

On August 29, 2012, the Company acquired Plasmart, Inc. (“Plasmart”), located in Daejeon, Korea. Plasmart develops radio frequency (RF) plasma generation and monitoring systems for the semiconductor, flat panel display, active matrix organic light emitting diodes and solar photovoltaic industries. Plasmart’s expertise in RF systems and access to the important Korean market were key drivers in the selection of Plasmart for acquisition. The aggregate purchase price, net of cash acquired, consisted of $22,607, subject to final working capital adjustments in the fourth quarter of 2012 of $1,778. Acquisition related costs of $1,258 and step-up inventory of $303 were expensed as incurred.

The following table summarizes the estimated fair value of the assets acquired and liabilities assumed at the date of the acquisition.


Current assets	$	5,536
Property, plant and equipment		3,565
Other assets		554
Intangible assets		10,745
Goodwill		9,989

Total assets acquired	$	30,389

Debt (Note 15)		4,561
Deferred taxes and other liabilities		3,128

Total liabilities assumed	$	7,689

Total purchase price	$	22,700
Cash acquired		(93	)

Total purchase price, net of cash acquired	$	22,607

The goodwill and other intangible assets associated with the acquisition are not deductible for tax purposes. The following table reflects the allocation of the acquired intangible assets and related estimates of useful lives. These acquired intangibles will be amortized on a straight-line basis.


Current developed technology	$	5,029	7.5 – 9.5 years useful life
Tradenames		335	7 year useful life
Customer relationships		5,381	10 year useful life

	$	10,745

This transaction resulted in an amount of purchase price that exceeded the estimated fair value of tangible and intangible assets, which was allocated to goodwill. The Company believes that the amount of goodwill relative to identifiable intangible assets relates to several factors including: (1) potential buyer-specific synergies related to market opportunities for a combined product offering and (2) potential to leverage the Company’s sales force and intellectual property to attract new customers and revenue.

The results of this acquisition were included in the Company’s consolidated operations beginning on August 29, 2012. The pro forma consolidated statements reflecting the operating results of Plasmart, had they been acquired as of January 1, 2012, would not differ materially from the operating results of the Company as reported for the year ended December 31, 2012. Plasmart is included in the Power and Reactive Gas Products group and the Advanced Manufacturing Capital Equipment reportable segment.

- Definition

The entire disclosure for a business combination (or series of individually immaterial business combinations) completed during the period, including background, timing, and recognized assets and liabilities. The disclosure may include leverage buyout transactions (as applicable).

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Reference 15: http://www.xbrl.org/2003/role/presentationRef
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Reference 16: http://www.xbrl.org/2003/role/presentationRef
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Reference 17: http://www.xbrl.org/2003/role/presentationRef
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-Number 141R
-Paragraph F4
-Subparagraph e
-Appendix F

Reference 18: http://www.xbrl.org/2003/role/presentationRef
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-Name Statement of Financial Accounting Standard (FAS)
-Number 141
-Paragraph 51, 52
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 19: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 141R
-Paragraph 67-73
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

+ Details

Goodwill and Intangible Assets

12 Months Ended

Dec. 31, 2012

Goodwill and Intangible Assets

11)

Goodwill and Intangible Assets

Goodwill

The changes in the carrying amount of goodwill and accumulated impairment losses were as follows:


	2012							2011
	Gross Carrying Amount		Accumulated Impairment Loss			Net		Gross Carrying Amount		Accumulated Impairment Loss			Net
Beginning balance at January 1	$	279,498	$	(139,414	)	$	140,084	$	279,434	$	(139,414	)	$	140,020
Acquired goodwill(1)		9,989		—			9,989		64		—			64
Foreign currency translation		660		—			660		—		—			—

Ending balance at December 31	$	290,147	$	(139,414	)	$	150,733	$	279,498	$	(139,414	)	$	140,084

(1)

On August 29, 2012, the Company purchased Plasmart, Inc. for $22,607, net of cash acquired. The Company recorded $9,989 of goodwill in connection with the acquisition. In September 2011, the Company purchased a product line from GE Osmonics, Inc. for $458. The Company recorded $64 of goodwill in connection with the acquisition.

Goodwill associated with each of our reportable segments is as follows:


	Years Ended December 31,
	2012		2011
Reportable segment:
Advanced Manufacturing Capital Equipment	$	142,065	$	125,026
Analytical Solutions Group		8,668		15,058
Europe Region Sales & Service		—		—
Asia Region Sales & Service		—		—

Total goodwill	$	150,733	$	140,084

Intangible Assets

The Company is required to test certain long-lived assets when indicators of impairment are present. For the purposes of the impairment test, long-lived assets are grouped with other assets and liabilities at the lowest level for which identifiable cash flows are largely independent of the cash flows of other assets and liabilities. There were no intangible asset impairment charges in 2012, 2011 or 2010.

Components of the Company’s acquired intangible assets are comprised of the following:


As of December 31, 2012	Gross		Accumulated Amortization			Foreign Currency Translation		Net
Completed technology(1)(2)	$	82,084	$	(77,243	)	$	254	$	5,095
Customer relationships(2)		14,571		(8,886	)		312		5,997
Patents, trademarks, trade names and other(2)		25,038		(24,587	)		18		469

	$	121,693	$	(110,716	)	$	584	$	11,561

(1)	Intangible assets of $226 were re-classified from other assets to intangible assets (completed technology) during the quarter ended March 31, 2012. This was related to in-process research and development which was completed during the first quarter of 2012, related to a previous acquisition.

(2)	On August 29, 2012, the Company purchased Plasmart for $22,607, net of cash acquired. The Company recorded $10,745 of separately identified intangible assets, of which $5,029 was completed technology, $5,381 was customer relationships and $335 was trade names.


As of December 31, 2011	Gross		Accumulated Amortization			Foreign Currency Translation		Net
Completed technology	$	76,829	$	(76,829	)	$	—	$	—
Customer relationships(1)		9,190		(8,393	)		—		797
Patents, trademarks, trade names and other(1)		24,703		(24,457	)		—		246

	$	110,722	$	(109,679	)	$	—	$	1,043

(1)	In September 2011, the Company purchased a product line from GE Osmonics, Inc. for $458. The Company recorded $315 of intangible assets in connection with the acquisition of which $250 was customer relationships and $65 was trade names.

Aggregate amortization expense related to acquired intangible assets for the years 2012, 2011 and 2010 was $1,036, $1,015 and $1,283, respectively. In 2010, the Company re-classified $242 of amortization expense to discontinued operations. Estimated amortization expense for each of the five remaining fiscal years and thereafter is as follows:


Year	Amount
2013	$	1,639
2014		1,261
2015		1,245
2016		1,244
2017		1,244
Thereafter		4,928

- Definition

The entire disclosure for the aggregate amount of goodwill and a description of intangible assets, which may include (a) for amortizable intangible assets (also referred to as finite-lived intangible assets), the carrying amount, the amount of any significant residual value, and the weighted-average amortization period, (b) for intangible assets not subject to amortization (also referred to as indefinite-lived intangible assets), the carrying amount, and (c) the amount of research and development assets acquired and written off in the period, including the line item in the income statement in which the amounts written off are aggregated, if not readily apparent from the income statement. Also discloses (a) for amortizable intangibles assets in total and by major class, the gross carrying amount and accumulated amortization, the total amortization expense for the period, and the estimated aggregate amortization expense for each of the five succeeding fiscal years, (b) for intangible assets not subject to amortization the carrying amount in total and by major class, and (c) for goodwill, in total and for each reportable segment, the changes in the carrying amount of goodwill during the period (including the aggregate amount of goodwill acquired, the aggregate amount of impairment losses recognized, and the amount of goodwill included in the gain (loss) on disposal of a reporting unit). If any part of goodwill has not been allocated to a reportable segment, discloses the unallocated amount and the reasons for not allocating. For each impairment loss recognized related to an intangible asset (excluding goodwill), discloses: (a) a description of the impaired intangible asset and the facts and circumstances leading to the impairment, (b) the amount of the impairment loss and the method for determining fair value, (c) the caption in the income statement or the statement of activities in which the impairment loss is aggregated, and (d) the segment in which the impaired intangible asset is reported. For each goodwill impairment loss recognized, discloses: (a) a description of the facts and circumstances leading to the impairment, (b) the amount of the impairment loss and the method of determining the fair value of the associated reporting unit, and (c) if a recognized impairment loss is an estimate not finalized and the reasons why the estimate is not final. May also disclose the nature and amount of any significant adjustments made to a previous estimate of an impairment loss.

+ References + Details

Other Assets

12 Months Ended

Dec. 31, 2012

Other Assets

12)

Other Assets


	Years Ended December 31,
	2012		2011
Other Current Assets:
Income tax receivable	$	12,768	$	12,005
Prepaid income taxes		4,344		8,540
Other		10,936		13,693

Total other current assets	$	28,048	$	34,238

Other Assets:
Deferred tax assets, net	$	9,497	$	10,274
Other		2,195		1,992

Total other assets	$	11,692	$	12,266

Other Liabilities

12 Months Ended

Dec. 31, 2012

Other Liabilities

13)

Other Liabilities


	Years Ended December 31,
	2012		2011
Other Current Liabilities:
Product warranties	$	8,266	$	8,315
Deferred revenue		9,280		11,553
Non-income taxes		3,514		8,319
Other		16,345		12,137

Total other current liabilities	$	37,405	$	40,324

Other Liabilities:
Long-term income tax payable	$	20,880	$	16,084
Accrued compensation		18,750		15,174
Other		3,745		953

Total other liabilities	$	43,375	$	32,211

Product Warranties

12 Months Ended

Dec. 31, 2012

Product Warranties

14)

Product Warranties

The Company provides for the estimated costs to fulfill customer warranty obligations upon the recognition of the related revenue. While the Company engages in extensive product quality programs and processes, including actively monitoring and evaluating the quality of its component suppliers, the Company’s warranty obligation is affected by shipment volume, product failure rates, utilization levels, material usage and supplier warranties on parts delivered to the Company. Should actual product failure rates, utilization levels, material usage, or supplier warranties on parts differ from the Company’s estimates, revisions to the estimated warranty liability would be required. The product warranty liability is included in other current liabilities in the consolidated balance sheets.

Product warranty activities were as follows:


	Years Ended December 31,
	2012			2011
Beginning balance	$	8,315		$	9,865
Provisions for product warranties		4,514			5,766
Direct charges to warranty liability		(4,985	)		(6,857	)
Foreign currency translation		422			(459	)

Ending balance	$	8,266		$	8,315

Debt

12 Months Ended

Dec. 31, 2012

Debt

15)

Debt

Credit Agreements and Short-Term Borrowings

The Company’s Japanese subsidiary has lines of credit and short-term borrowing arrangements with two financial institutions which, generally expire and are renewed at three month intervals. The lines of credit provide for aggregate borrowings as of December 31, 2012 of up to an equivalent of $26,729 U.S. dollars, with interest rates ranging from 0.63% - 1.475%. There were no borrowings outstanding under these arrangements at December 31, 2012. There were $1,932 total borrowings outstanding under these arrangements at December 31, 2011.

The Company has an available line of credit with a financial institution from the August 2012 Plasmart acquisition. The available line of credit, which expires in 2014, provides for aggregate borrowings as of December 31 2012 of up to an equivalent of $1,401 U.S. dollars at an average interest rate of 5.19%. There were no borrowings outstanding under this arrangement at December 31, 2012.

- Definition

The entire disclosure for information about short-term and long-term debt arrangements, which includes amounts of borrowings under each line of credit, note payable, commercial paper issue, bonds indenture, debenture issue, own-share lending arrangements and any other contractual agreement to repay funds, and about the underlying arrangements, rationale for a classification as long-term, including repayment terms, interest rates, collateral provided, restrictions on use of assets and activities, whether or not in compliance with debt covenants, and other matters important to users of the financial statements, such as the effects of refinancing and noncompliance with debt covenants.

+ References + Details

Income Taxes

12 Months Ended

Dec. 31, 2012

Income Taxes

16)

Income Taxes

A reconciliation of the Company’s effective tax rate to the U.S. federal statutory rate is as follows:


	Years Ended December 31,
	2012			2011			2010
U.S. Federal income tax statutory rate		35.0	%		35.0	%		35.0	%
Federal tax credits		—			(0.7	)		(1.1	)
State income taxes, net of federal benefit		1.3			1.1			1.0
Effect of foreign operations taxed at various rates		(2.6	)		(4.1	)		(2.4	)
Qualified production activity tax benefit		(0.5	)		(1.1	)		(0.8	)
Deferred tax asset valuation allowance		1.4			0.6			(0.1	)
Other		1.5			(0.5	)		0.7

		36.1	%		30.3	%		32.3	%

The components of income from continuing operations before income taxes and the related provision for income taxes consist of the following:


	Years Ended December 31,
	2012		2011			2010
Income from continuing operations before income taxes:
United States	$	28,652	$	108,474		$	110,779
Foreign		46,484		77,578			85,645

	$	75,136	$	186,052		$	196,424


Current taxes:
United States	$	10,431	$	25,824		$	27,789
State		783		2,602			3,323
Foreign		12,074		20,346			22,296

		23,288		48,772			53,408

Deferred taxes:
United States		2,019		7,795			10,021
State and Foreign		1,800		(246	)		76

		3,819		7,549			10,097

Provision for income taxes	$	27,107	$	56,321		$	63,505

The significant components of the deferred tax assets and deferred tax liabilities are as follows:


	Years Ended December 31,
	2012			2011
Deferred tax assets:
Loss carryforwards and credits	$	29,032		$	28,053
Inventory and warranty reserves		10,959			8,789
Accounts receivable and other accruals		2,647			6,875
Stock-based compensation		5,032			4,610
Executive supplemental retirement benefits		6,132			4,826
Other		—			1,245

Total deferred tax assets	$	53,802		$	54,398


Deferred tax liabilities:
Acquired intangible assets		(5,857	)		(3,330	)
Depreciation and amortization		(4,461	)		(3,679	)
Other		(1,145	)		(22	)

Total deferred tax liabilities		(11,463	)		(7,031	)

Valuation allowance		(27,497	)		(26,475	)

Net deferred tax assets	$	14,842		$	20,892

At December 31, 2012, the Company had gross Massachusetts research and other tax credit carryforwards of $8,229. These credit carryforwards will expire at various dates through 2027. In addition, at December 31, 2012, the Company had U.S. federal capital loss carryforwards of $1,984, and $59,275 that will expire in 2013 and 2015, respectively.

Although the Company believes that its tax positions are consistent with applicable U.S. federal, state and international laws, it maintains certain tax reserves at December 31, 2012 in the event its tax positions were to be challenged by the applicable tax authority and additional tax assessed on audit.

A reconciliation of the beginning and ending amount of gross unrecognized tax benefits is as follows:


	Years Ended December 31,
	2012		2011			2010
Balance at beginning of year	$	36,540	$	22,028		$	9,085
Decreases for prior years		—		(3	)		(6	)
Increases for the current year		4,134		16,663			13,553
Reductions related to settlements with taxing authorities		—		(2,148	)		—
Reductions related to expiration of statute of limitations		—		—			(604	)

Balance at end of year	$	40,674	$	36,540		$	22,028

At December 31, 2012, the total amount of gross unrecognized tax benefits, which excludes interest and penalties, was approximately $40,674. The net increase from December 31, 2011 was primarily attributable to a current year increase in reserves for existing uncertain tax positions. As of December 31, 2012, if these benefits were recognized in a future period, the timing of which is not estimable, the net unrecognized tax benefit of $19,788, excluding interest and penalties, would impact the Company’s effective tax rate.

The Company accrues interest expense and, if applicable, penalties, for any uncertain tax positions. Interest and penalties are classified as a component of income tax expense. At December 31, 2012, 2011 and 2010, the Company had accrued interest on unrecognized tax benefits of approximately $1,571, $973 and $986, respectively.

Over the next 12 months it is reasonably possible that the Company may recognize $2,545 to $3,145 of previously unrecognized tax benefits related to various U.S. federal, state and foreign tax positions as a result of the conclusion of various audits and the expiration of the statute of limitations. The Company is subject to examination by federal, state and foreign tax authorities. The Internal Revenue Service commenced an examination of its U.S. federal tax filings for open tax years through 2009 during the quarter ended June 30, 2012. The statute of limitations in the Company’s other tax jurisdictions remains open between fiscal year 2006 through present.

On a quarterly basis, the Company evaluates both positive and negative evidence that affects the realizability of net deferred tax assets and assesses the need for a valuation allowance. The future benefit to be derived from its deferred tax assets is dependent upon its ability to generate sufficient future taxable income to realize the assets. During 2012, the Company increased its valuation allowance by $1,022 primarily related to an increase in state tax credit carryforwards because the Company has determined it is more likely than not that the deferred tax assets related to these attributes will not be realized. In 2011, the Company increased its valuation allowance by $1,208 primarily related to capital losses incurred from our foreign affiliates because the Company has determined it is more likely than not that the deferred tax assets related to these attributes will not be realized. In 2011, the Company recorded a net benefit to income tax expense of $2,148, excluding interest and penalties, due to discrete reserve releases primarily related to the effective settlement of a German tax audit for years 2001 through 2005.

Through December 31, 2012, the Company has not provided deferred income taxes on the undistributed earnings of its foreign subsidiaries because such earnings were intended to be permanently reinvested outside the U.S. Determination of the potential deferred income tax liability on these undistributed earnings is not practicable because such liability, if any, is dependent on circumstances existing if and when remittance occurs. At December 31, 2012, the Company had $421,734 of undistributed earnings in its foreign subsidiaries.

During 2006, the Company received a notification letter from the Israeli Ministry of Industry Trade and Labor (“MITL”) indicating that its Israeli operations were in compliance with requirements relating to the tax holiday granted to its manufacturing operations in Israel in 2001. This tax holiday expired at December 31, 2012 and was subject to meeting continued investment, employment and other requirements under the guidelines of the MITL. This tax holiday resulted in income tax savings of approximately $1,000 and $2,700 for the years 2011 and 2010, respectively. Upon expiration of its tax holiday, the Company elected to be treated under a new preferential Israeli tax regime under which a tax rate of 10% applies for 2012, and is reduced to 7% for 2013.

On January 2, 2013, the American Taxpayer Relief Act of 2012 reinstated certain tax incentives with retroactive application to January 1, 2012, the tax effect of which will be recognized as a discrete event in the first quarter of 2013. Had the extension been enacted prior to January 1, 2013, our effective tax rate would have been reduced by approximately 3%.

- Definition

The entire disclosure for income taxes. Disclosures may include net deferred tax liability or asset recognized in an enterprise's statement of financial position, net change during the year in the total valuation allowance, approximate tax effect of each type of temporary difference and carryforward that gives rise to a significant portion of deferred tax liabilities and deferred tax assets, utilization of a tax carryback, and tax uncertainties information.

+ References

+ Details

Discontinued Operations

12 Months Ended

Dec. 31, 2012

Discontinued Operations

17)

Discontinued Operations

During 2010, the Company executed a plan to divest two product lines, as their growth potential no longer met the Company’s long-term strategic objectives. The Company completed the sale of Ion on May 17, 2010 for $15,092 of net cash proceeds after expenses and recorded a pre-tax gain on the sale of $4,208. The Company completed the sale of the assets of its YDI business on August 11, 2010 for $490 of net cash proceeds after expenses and recorded a pre-tax gain on the sale of $224.

The two product lines have been accounted for as discontinued operations. Accordingly, their results of operations have been reclassified to discontinued operations in the consolidated statements of operations and comprehensive income. The assets and liabilities of these discontinued businesses have not been reclassified or segregated in the consolidated statements of cash flows due to their immaterial amounts. Net revenues and income from discontinued operations are below:


	Years Ended December 31,
	2012		2011		2010
Net revenues	$	—	$	—	$	11,974


Income from discontinued operations before income taxes		—		—		2,320
Gain from disposal of discontinued operations before income taxes		—		—		4,432
Income tax benefit		—		—		2,916

Income from discontinued operations	$	—	$	—	$	9,668

- Definition

The entire disclosure for the facts and circumstances leading to the completed or expected disposal, manner and timing of disposal, the gain (loss) recognized in the income statement and the income statement caption that includes that gain (loss), amounts of revenues and pretax profit or loss reported in discontinued operations, the segment in which the disposal group was reported, and the classification (whether sold or classified as held for sale) and carrying value of the assets and liabilities comprising the disposal group. Includes all disposal groups, including those classified as components of the entity (discontinued operations).

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
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-SubTopic 20
-Section 50
-Paragraph 1
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Reference 2: http://www.xbrl.org/2003/role/presentationRef
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Reference 3: http://www.xbrl.org/2003/role/presentationRef
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Reference 10: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 144
-Paragraph 43-48
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

+ Details

Stockholders' Equity

12 Months Ended

Dec. 31, 2012

Stockholders' Equity

18)

Stockholders’ Equity

Stock Repurchase

On July 25, 2011, the Company’s board of directors approved a share repurchase program for the repurchase of up to an aggregate of $200,000 of its outstanding Common Stock from time to time in open market purchases, privately negotiated transactions or through other appropriate means. The timing and quantity of any shares repurchased will depend upon a variety of factors, including business conditions, stock market conditions and business development activities, including, but not limited to, merger and acquisition opportunities. These repurchases may be commenced, suspended or discontinued at any time without prior notice.

During 2012, the Company repurchased 434,600 shares of its Common Stock for $11,501 at an average price of $26.46 per share. During 2011, the Company repurchased 85,800 shares of its common stock for $2,007 at an average price of $23.40 per share.

Dividends

Holders of the Company’s Common Stock are entitled to receive dividends when they are declared by the Company’s board of directors. During 2012, the board of directors authorized four quarterly dividends, two quarterly dividends of $0.15 per share and two quarterly dividends of $0.16 per share, which totaled $32,686. Future dividend declarations, if any, as well as the record and payment dates for such dividends, are subject to the final determination of the Company’s board of directors.

On February 11, 2013, the Company’s board of directors declared a quarterly cash dividend of $0.16 per share to be paid on March 15, 2013 to shareholders of record as of March 1, 2013.

- Definition

The entire disclosure for shareholders' equity, comprised of portions attributable to the parent entity and noncontrolling interest, if any, including other comprehensive income (as applicable). Including, but not limited to: (1) balances of common stock, preferred stock, additional paid-in capital, other capital and retained earnings; (2) accumulated balance for each classification of other comprehensive income and total amount of comprehensive income; (3) amount and nature of changes in separate accounts, including the number of shares authorized and outstanding, number of shares issued upon exercise and conversion, and for other comprehensive income, the adjustments for reclassifications to net income; (4) rights and privileges of each class of stock authorized; (5) basis of treasury stock, if other than cost, and amounts paid and accounting treatment for treasury stock purchased significantly in excess of market; (6) dividends paid or payable per share and in the aggregate for each class of stock for each period presented; (7) dividend restrictions and accumulated preferred dividends in arrears (in aggregate and per share amount); (8) retained earnings appropriations or restrictions, such as dividend restrictions; (9) impact of change in accounting principle, initial adoption of new accounting principle and correction of an error in previously issued financial statements; (10) shares held in trust for Employee Stock Ownership Plan (ESOP); (11) deferred compensation related to issuance of capital stock; (12) note received for issuance of stock; (13) unamortized discount on shares; (14) description, terms, and number of warrants or rights outstanding; (15) shares under subscription and subscription receivables, effective date of new retained earnings after quasi-reorganization and deficit eliminated by quasi-reorganization and, for a period of at least ten years after the effective date, the point in time from which the new retained dates; and (16) retroactive effective of subsequent change in capital structure.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
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-Section S99
-Paragraph 1
-Subparagraph (SX 210.4-08.(d),(e))
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Reference 14: http://www.xbrl.org/2003/role/presentationRef
-Publisher AICPA
-Name Accounting Research Bulletin (ARB)
-Number 43
-Section B
-Paragraph 7, 11A
-Chapter 1
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 15: http://www.xbrl.org/2003/role/presentationRef
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-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 16: http://www.xbrl.org/2003/role/presentationRef
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-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

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Reference 18: http://www.xbrl.org/2003/role/presentationRef
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Reference 19: http://www.xbrl.org/2003/role/presentationRef
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Reference 23: http://www.xbrl.org/2003/role/presentationRef
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-Name Regulation S-X (SX)
-Number 210
-Section 04
-Article 3

+ Details

Stock-Based Compensation

12 Months Ended

Dec. 31, 2012

Stock-Based Compensation

19)

Stock-Based Compensation

Employee Stock Purchase Plans

The Company’s Third Amended and Restated 1999 Employee Stock Purchase Plan (the “Purchase Plan”) authorizes the issuance of up to an aggregate of 1,950,000 shares of Common Stock to participating employees. Offerings under the Purchase Plan commence on June 1 and December 1 and terminate, respectively, on November 30 and May 31. Under the Purchase Plan, eligible employees may purchase shares of Common Stock through payroll deductions of up to 10% of their compensation or up to an annual maximum amount of $21,250. The price at which an employee’s purchase option is exercised is the lower of (1) 85% of the closing price of the Common Stock on the NASDAQ Global Select Market on the day that each offering commences, or (2) 85% of the closing price on the day that each offering terminates. During 2012 and 2011, the Company issued 141,975 and 137,410 shares, respectively, of Common Stock to employees who participated in the Purchase Plan at an exercise price of $22.40 and $22.01 per share in 2012 and $18.26 and $21.62 per share in 2011. As of December 31, 2012, there were 350,748 shares reserved for future issuance under the Purchase Plan.

The Company’s Second Amended and Restated International Employee Stock Purchase Plan (the “Foreign Purchase Plan”) authorizes the issuance of up to an aggregate of 400,000 shares of Common Stock to participating employees. Offerings under the Foreign Purchase Plan commence on June 1 and December 1 and terminate, respectively, on November 30 and May 31. Under the Foreign Purchase Plan, eligible employees may purchase shares of Common Stock through payroll deductions of up to 10% of their compensation or up to an annual maximum amount of $21,250. The price at which an employee’s purchase option is exercised is the lower of (1) 85% of the closing price of the Common Stock on the NASDAQ Global Select Market on the day that each offering commences, or (2) 85% of the closing price on the day that each offering terminates. During 2012 and 2011, the Company issued 29,954 and 29,969 shares, respectively, of Common Stock to employees who participated in the Foreign Purchase Plan at an exercise price of $22.40 and $22.01 per share in 2012 and $18.26 and $21.62 per share in 2011. As of December 31, 2012, there were 96,470 shares reserved for future issuance under the Foreign Purchase Plan.

Equity Incentive Plans

The Company has granted options to employees under the 2004 Stock Incentive Plan (the “2004 Plan”) and under the Second Restated 1995 Stock Incentive Plan (the “1995 Plan”), and to directors under the 1997 Director Stock Plan (the “1997 Director Plan”) (collectively, the “Plans”). The Company has also granted restricted stock units (“RSU”s) to employees and directors under the 2004 Plan. The Plans are administered by the Compensation Committee of the Company’s board of directors.

The Company’s equity incentive Plans are intended to attract and retain employees and to provide an incentive for them to assist the Company to achieve long-range performance goals and to enable them to participate in the long-term growth of the Company. Employees may be granted RSUs, options to purchase shares of the Company’s stock and other equity incentives under the Plans.

The Company’s 2004 Plan was adopted by the board of directors on March 4, 2004 and approved by the stockholders on May 13, 2004. As of December 31, 2012, there were 15,000,000 shares authorized for issuance under the 2004 Plan. The Company may grant options, RSUs, stock appreciation rights and other stock-based awards to employees, officers, directors, consultants and advisors under the 2004 Plan. As of December 31, 2012, there were 11,394,493 shares available for future grants under the 2004 Plan.

The Company’s 1995 Plan expired in November 2005 and no further awards may be granted under the 1995 Plan, although there are still outstanding options which may be exercised under this plan.

The Company’s 1997 Director Plan expired in February 2007 and no further awards may be granted under the 1997 Director Plan, although there are still outstanding options which may be exercised under this plan.

Stock options were granted at an exercise price equal to 100% of the fair value of the Company’s Common Stock at the date of grant. Generally, stock options granted to employees under the Plans in 2001 and after, vested 25% after one year and 6.25% per quarter thereafter, and expire 10 years after the grant date. Generally, stock options granted under the Plans prior to 2001 vested 20% after one year and 5% per quarter thereafter, and expired 10 years after the grant date. Options granted to directors generally vested at the earliest of (1) one day prior to the next annual meeting, (2) 13 months from date of grant, or (3) the effective date of an acquisition. All stock options are fully vested as of December 31, 2012. RSUs granted in 2012 and 2011 generally vest 33.3% per year after the date of grant. RSUs granted in 2010 and prior, generally vest three years from the date of grant. RSUs granted to employees who are at least 60 years old and have a combined years of age plus years of service (as defined) equal to 70 years or more, are expensed immediately. RSUs granted to directors generally vest at the earliest of (1) one day prior to the next annual meeting, (2) 13 months from date of grant, or (3) the effective date of an acquisition. Certain equity incentive awards involve RSUs that are subject to performance conditions (“performance shares”) under the Company’s stock incentive plans. Such performance shares are available, subject to time-based vesting conditions if, and to the extent that, financial or operational performance criteria for the applicable period are achieved. Accordingly, the number of performance shares earned will vary based on the level of achievement of financial or operational performance objectives for the applicable period.

The following table presents the activity for RSUs under the Plans:


	Years Ended December 31,
	2012					2011					2010
	Non-vested RSUs			Weighted Average Grant Date Fair Value		Non-vested RSUs			Weighted Average Grant Date Fair Value		Non-vested RSUs			Weighted Average Grant Date Fair Value
Non-vested RSUs — beginning of period		1,115,005		$	21.50		1,327,306		$	18.34		1,581,883		$	19.77
Granted		426,583		$	29.14		397,492		$	30.27		555,995		$	19.63
Vested		(557,314	)	$	19.01		(569,891	)	$	20.42		(706,224	)	$	20.65
Forfeited or expired		(42,071	)	$	22.36		(39,902	)	$	18.36		(104,348	)	$	18.32

Non-vested RSUs — end of period		942,203		$	26.58		1,115,005		$	21.50		1,327,306		$	18.34

The following table presents the activity for options under the Plans:


	Years Ended December 31,
	2012					2011					2010
	Options			Weighted Average Exercise Price		Options			Weighted Average Exercise Price		Options			Weighted Average Exercise Price
Outstanding — beginning of period		420,712		$	21.97		1,793,214		$	22.38		2,514,822		$	21.67
Exercised		(123,650	)	$	18.78		(1,351,684	)	$	22.46		(568,464	)	$	16.49
Forfeited or expired		(41,413	)	$	32.32		(20,818	)	$	22.66		(153,144	)	$	32.51

Outstanding — end of period		255,649		$	21.74		420,712		$	21.97		1,793,214		$	22.38

Exercisable at end of period		255,649		$	21.74		420,712		$	21.97		1,793,214		$	22.38

The following table summarizes information with respect to options outstanding and exercisable under the Plans at December 31, 2012:


	Options Outstanding and Exercisable
	Number of Shares		Weighted Average Exercise Price		Weighted Average Remaining Contractual Life (In Years)		Aggregate Intrinsic Value (In Thousands)
$13.54 – $18.38		109,614	$	15.42		1.87	$	1,135
$20.07 – $29.93		146,035	$	26.48		1.37		128

		255,649					$	1,263

The weighted average remaining contractual life of options exercisable was 1.6 years at December 31, 2012.

The aggregate intrinsic value in the table above represents the total pre-tax intrinsic value, based on the Company’s closing stock price of $25.78 as of December 31, 2012, which would have been received by the option holders had all option holders exercised their options as of that date. The total number of in-the-money options exercisable as of December 31, 2012 was 151,239.

The total cash received from employees as a result of employee stock option exercises during the years 2012 and 2011 was approximately $2,322 and $30,362, respectively. In connection with these exercises, the tax benefit realized by the Company for the years 2012 and 2011 were approximately $299 and $2,972, respectively.

The Company settles employee stock option exercises and restricted stock vesting with newly issued common shares.

Stock-based compensation expense

The Company recognized the full impact of its share-based payment plans in the consolidated statements of operations and comprehensive income for the years 2012, 2011 and 2010. As of December 31, 2012 and 2011, the Company capitalized $471 of such cost on its consolidated balance sheet. The following table reflects the effect of recording stock-based compensation for the years 2012, 2011 and 2010:


	Years Ended December 31,
	2012			2011			2010
Stock-based compensation expense by type of award:
Restricted stock	$	11,836		$	10,126		$	10,026
Employee stock purchase plan		1,195			1,099			578

Total stock-based compensation		13,031			11,225			10,604
Tax effect on stock-based compensation		(1,862	)		(5,019	)		(1,253	)

Net effect on net income	$	11,169		$	6,206		$	9,351

Effect on net earnings per share:
Basic	$	0.21		$	0.12		$	0.19

Diluted	$	0.21		$	0.12		$	0.18

The pre-tax effect within the consolidated statements of operations and comprehensive income of recording stock-based compensation for the years 2012, 2011 and 2010 was as follows:


	Years Ended December 31,
	2012		2011		2010
Cost of sales	$	1,867	$	1,511	$	1,452
Research and development expense		2,278		2,197		2,391
Selling, general and administrative expense		8,886		7,517		6,761

Total pre-tax stock-based compensation expense	$	13,031	$	11,225	$	10,604

Valuation Assumptions

The Company determines the fair value of restricted stock based on the number of shares granted and the closing market price of the Company’s Common Stock on the date of the award, and estimates the fair value of stock options and employee stock purchase rights using the Black-Scholes valuation model. Such values are recognized as expense on a straight-line basis over the requisite service periods, net of estimated forfeitures except for retirement eligible employees in which the Company expenses the fair value of the grant in the period the grant is issued. The estimation of stock-based awards that will ultimately vest requires significant judgment. The Company considers many factors when estimating expected forfeitures, including types of awards and historical experience. Actual results, and future changes in estimates, may differ substantially from the Company’s current estimates.

There were no options granted during 2012, 2011 and 2010. The total intrinsic value of options exercised during 2012, 2011 and 2010 was approximately $1,228, $9,458 and $3,518, respectively.

The weighted average fair value per share of employee stock purchase rights granted in 2012, 2011 and 2010 was $7.24, $5.87 and $5.48, respectively. The fair value of the employees’ purchase rights was estimated using the Black-Scholes option-pricing model with the following weighted average assumptions:


	Years Ended December 31,
	2012			2011			2010
Employee stock purchase rights:
Expected life (years)		0.5			0.5			0.5
Risk-free interest rate		0.1	%		0.2	%		0.2	%
Expected volatility		32.2	%		31.9	%		48.7	%
Expected annual dividends per share	$	0.62		$	0.60		$	—

Expected volatilities for 2012, 2011 and 2010 are based on a combination of implied and historical volatilities of the Company’s Common Stock; the expected life represents the weighted average period of time that options granted are expected to be outstanding giving consideration to vesting schedules and the Company’s historical exercise patterns; and the risk-free interest rate is based on the U.S. Treasury yield curve in effect at the time of grant for periods corresponding with the expected life of the option.

The total intrinsic value of options exercised and the total fair value of shares vested during 2012, 2011 and 2010 was approximately $16,498, $27,199 and $16,846, respectively. As of December 31, 2012, the unrecognized compensation cost related to restricted stock was approximately $11,238, and will be recognized over an estimated weighted average amortization period of 1.6 years.

- Definition

The entire disclosure for compensation-related costs for equity-based compensation, which may include disclosure of policies, compensation plan details, allocation of equity compensation, incentive distributions, equity-based arrangements to obtain goods and services, deferred compensation arrangements, employee stock ownership plan details and employee stock purchase plan details.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 50
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6406099&loc=d3e25284-112666

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 40
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6418621&loc=d3e17540-113929

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5047-113901

Reference 5: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 4
-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5444-113901

Reference 6: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Staff Accounting Bulletin (SAB)
-Number Topic 14

Reference 7: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 123R
-Paragraph 64, 65, A240
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 8: http://www.xbrl.org/2003/role/presentationRef
-Publisher AICPA
-Name Statement of Position (SOP)
-Number 93-6
-Paragraph 53
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

+ Details

Employee Benefit Plans

12 Months Ended

Dec. 31, 2012

Employee Benefit Plans

20)

Employee Benefit Plans

The Company has a 401(k) profit-sharing plan for U.S. employees meeting certain requirements in which eligible employees may contribute between 1% and 50% of their annual compensation to this plan, and, with respect to employees who are age 50 and older, certain specified additional amounts, limited by an annual maximum amount determined by the Internal Revenue Service. The Company, at its discretion, may provide a matching contribution of 50% of each participant’s contributions up to 6% of eligible salary. At the discretion of the board of directors, the Company may also make additional contributions for the benefit of all eligible employees. The Company’s contributions were $2,245, $2,276 and $1,472 for 2012, 2011 and 2010, respectively.

The Company has one foreign defined benefit plan which is frozen for Company contributions. The total accrual and projected benefit obligation is not material for this plan.

The Company maintains a bonus plan which provides cash awards to key employees, at the discretion of the compensation committee of the board of directors, based upon operating results and employee performance. The bonus expense was $6,248, $7,559, and $18,972 in 2012, 2011 and 2010, respectively.

The Company provides supplemental retirement benefits for certain of its officers and executive officers. The total cost of these benefits was $3,454, $3,931 and $3,428 for 2012, 2011 and 2010, respectively. The accumulated benefit obligation was $16,353 and $12,870 at December 31, 2012 and 2011, respectively and was included in other long-term liabilities.

Net Income Per Share

12 Months Ended

Dec. 31, 2012

Net Income Per Share

21)

Net Income Per Share

Basic earnings per share (“EPS”), is computed by dividing income available to common stockholders by the weighted-average number of common shares outstanding during the period. The computation of diluted EPS is similar to the computation of basic EPS except that the denominator is increased to include the number of additional common shares that would have been outstanding (using the treasury stock method), if securities containing potentially dilutive common shares (stock options and restricted stock units) had been converted to such common shares, and if such assumed conversion is dilutive.

The following is a reconciliation of basic to diluted net income per share:


	Years Ended December 31,
	2012		2011		2010
Numerator:
Income from continuing operations	$	48,029	$	129,731	$	132,919
Income from discontinued operations, net of tax		—		—		9,668

Net income	$	48,029	$	129,731	$	142,587

Denominator:
Shares used in net income per common share — basic		52,686,000		52,169,000		50,077,000
Effect of dilutive securities:
Stock options, restricted stock and employee stock purchase plan		548,000		678,000		850,000

Shares used in net income per common share — diluted		53,234,000		52,847,000		50,927,000

Basic income per common share:
Continuing operations	$	0.91	$	2.49	$	2.66
Discontinued operations		—		—		0.19

Net income	$	0.91	$	2.49	$	2.85

Diluted income per common share:
Continuing operations	$	0.90	$	2.45	$	2.61
Discontinued operations		—		—		0.19

Net income	$	0.90	$	2.45	$	2.80

As of December 31, 2012, 2011 and 2010, stock options and restricted stock units relating to an aggregate of approximately 1,198,000, 1,536,000 and 3,121,000 shares, respectively, were outstanding. In 2012, 2011 and 2010, the potential dilutive effect of 204,000, 259,000 and 1,256,000 weighted average shares, respectively, of stock options were excluded from the computation of diluted weighted-average shares outstanding as the shares would have an anti-dilutive effect on EPS.

Business Segment, Geographic Area, Product and Significant Customer Information

12 Months Ended

Dec. 31, 2012

Business Segment, Geographic Area, Product and Significant Customer Information

22)

Business Segment, Geographic Area, Product and Significant Customer Information

Effective in the second quarter of fiscal year 2012, the Company changed its financial reporting structure to include four reportable segments based upon the manner in which information is produced internally and provided to the Company’s chief operating decision-maker (“CODM”). The Company had previously reported as a single operating and reporting segment.

The Company develops, manufactures, sells and services products that measure, control, power and monitor critical parameters of advanced manufacturing processes. The Company’s CODM utilizes consolidated financial information to make decisions about allocating resources and assessing performance for the entire Company. In addition, certain disaggregated financial information is also provided to the CODM. Based upon the information provided to the CODM, the Company has determined it has eight operating segments and four reportable segments.

The eight operating segments are PFMC Products, Controls Products, ASTeX Products, ENI Products, HPS Products (Vacuum Products), Analytical Solutions Group, Europe Region Sales & Service and Asia Region Sales & Service.

PFMC Products, Controls Products, ASTeX Products, ENI Products and HPS Products comprise a single reportable segment due to the similarities of the segments. This reportable segment, Advanced Manufacturing Capital Equipment, includes the development, manufacturing, sales and servicing of instruments and control products, power and reactive gas products and vacuum products, all of which are utilized in semiconductor processing and other similar advanced manufacturing processes. Sales in this segment include both external sales and intercompany sales (which are stated at agreed upon transfer prices). External sales of these products made in Europe or Asia are reported as sales in the Europe Region Sales & Service or Asia Region Sales & Service segments.

Analytical Solutions Group, Europe Region Sales & Service and Asia Region Sales & Service are each separate reportable segments. The Company has reported corporate expenses and certain intercompany pricing transactions in a Corporate, Eliminations and Other reconciling column. The Analytical Solutions Group includes gas composition analysis and information technology products and custom fabrication services. The Europe and Asia sales and service segments mainly resell and service the Advanced Manufacturing Capital Equipment and Analytical Solutions Group products sold in their respective regions.

MKS derives the segment results directly from the manner in which results are reported in its management reporting system. The accounting policies MKS uses to derive reportable segment results are substantially the same as those used for external reporting purposes except that a substantial portion of the sales of the Advanced Manufacturing Capital Equipment and Analytical Solutions Group segments are intercompany sales to the regions at tax-based transfer prices and certain significant costs, including stock-based compensation and management incentive compensation, are not allocated to the segments and are included in Corporate, Eliminations and Other. The CODM reviews several metrics of each operating segment, including net revenues and gross profit (loss).

The following is net revenues by reportable segment:


	Years Ended December 31,
	2012			2011			2010
Advanced Manufacturing Capital Equipment	$	479,751		$	647,908		$	712,737
Analytical Solutions Group		62,765			61,303			52,888
Europe Region Sales & Service(1)		51,440			75,253			70,153
Asia Region Sales & Service(1)		229,731			305,448			274,912
Corporate, Eliminations and Other		(180,179	)		(267,395	)		(257,576	)

	$	643,508		$	822,517		$	853,114

(1)

The Europe and Asia foreign sales and service operations do not represent total geographical Europe and Asia financial information. These sales and service operations only represent the sales from the resale and service of Advanced Manufacturing Capital Equipment and Analytical Solutions Group products in their respective regions. The Advanced Manufacturing Capital Equipment and Analytical Solutions Group segments both have sales in each region. Accordingly, total geographical sales include sales from multiple reportable segments.

The following is gross profit by reportable segment:


	Years Ended December 31,
	2012		2011		2010
Advanced Manufacturing Capital Equipment	$	171,308	$	263,863	$	294,502
Analytical Solutions Group		32,741		31,800		25,830
Europe Region Sales & Service(1)		15,156		21,323		19,587
Asia Region Sales & Service(1)		36,962		45,267		48,952
Corporate, Eliminations and Other		13,312		12,735		(10,233	)

	$	269,479	$	374,988	$	378,638

(1)

The following is capital expenditures by reportable segment for the years ended December 31, 2012, 2011 and 2010:


	Product Groups				Foreign Sales & Service Operations
	Advanced Manufacturing Capital Equipment		Analytical Solutions Group		Europe		Asia		Corporate, Eliminations and Other		Total
December 31, 2012:
Capital expenditures	$	11,817	$	1,228	$	132	$	886	$	3,642	$	17,705

December 30, 2011:
Capital expenditures	$	11,947	$	868	$	362	$	1,552	$	838	$	15,567

December 30, 2010:
Capital expenditures	$	11,148	$	1,287	$	374	$	1,189	$	1,821	$	15,819

The following is depreciation and amortization expense by reportable segment for the years ended December 31, 2012, 2011 and 2010:


	Product Groups				Foreign Sales & Service Operations
	Advanced Manufacturing Capital Equipment		Analytical Solutions Group		Europe		Asia		Corporate, Eliminations and Other		Total
December 31, 2012:
Depreciation and amortization	$	9,594	$	1,176	$	326	$	1,711	$	1,635	$	14,442

December 30, 2011:
Depreciation and amortization	$	8,143	$	1,470	$	366	$	1,539	$	1,462	$	12,980

December 30, 2010:
Depreciation and amortization	$	7,872	$	1,432	$	279	$	1,473	$	2,767	$	13,823

Total income tax expense is impracticable to present by reportable segment because the necessary information is not available.

The following is segment assets by reportable segment:


	Product Groups				Foreign Sales & Service Operations
	Advanced Manufacturing Capital Equipment		Analytical Solutions Group		Europe		Asia		Corporate, Eliminations and Other			Total
December 31, 2012:
Segment assets:
Accounts receivable	$	9,644	$	5,889	$	5,813	$	32,088	$	28,626		$	82,060
Inventory		108,397		3,841		3,691		29,534		(10,824	)		134,639

Total segment assets	$	118,041	$	9,730	$	9,504	$	61,622	$	17,802		$	216,699


	Product Groups				Foreign Sales & Service Operations
	Advanced Manufacturing Capital Equipment		Analytical Solutions Group		Europe		Asia		Corporate, Eliminations and Other			Total
December 31, 2011:
Segment assets:
Accounts receivable	$	24,224	$	5,099	$	6,079	$	60,242	$	25,250		$	120,894
Inventory		119,314		4,442		3,828		45,828		(19,780	)		153,632

Total segment assets	$	143,538	$	9,541	$	9,907	$	106,070	$	5,470		$	274,526

A reconciliation of segment assets to consolidated total assets is as follows:


	Years Ended December 31,
	2012		2011
Total segment assets	$	216,699	$	274,526
Cash and cash equivalents and investments		627,399		573,392
Other current assets		36,242		44,856
Property, plant and equipment, net		80,516		72,487
Goodwill and intangible assets, net		162,294		141,127
Other assets		11,692		12,266

Consolidated total assets	$	1,134,842	$	1,118,654

Information about the Company’s operations in different geographic regions is presented in the tables below. Net revenues to unaffiliated customers are based on the location in which the sale originated. Transfers between geographic areas are at negotiated transfer prices and have been eliminated from consolidated net revenues.


	Years Ended December 31,
	2012		2011		2010
Net revenues:
United States	$	326,894	$	391,122	$	484,139
Japan		81,883		106,003		118,537
Europe		85,362		115,362		96,545
Asia (excluding Japan)		149,369		210,030		153,893

	$	643,508	$	822,517	$	853,114


	Years Ended December 31,
	2012		2011
Long-lived assets:(1)
United States	$	62,203	$	56,760
Japan		2,562		3,908
Europe		5,844		5,437
Asia (excluding Japan)		12,102		8,374

	$	82,711	$	74,479

(1)	Long-lived assets include property, plant and equipment, net and certain other assets.

Worldwide Product Information

Because the reportable segment information above does not reflect worldwide sales of the Company’s products, the Company groups its products into four groups of similar products based upon the similarity of product function. Worldwide net revenue for each group of products is as follows:


	Years Ended December 31,
	2012		2011		2010
Instruments and Control Products	$	258,521	$	348,735	$	373,909
Power and Reactive Gas Products		251,669		327,151		343,827
Vacuum Products		66,418		81,782		78,819
Analytical Solutions Group Products		66,900		64,849		56,559

	$	643,508	$	822,517	$	853,114

Sales of Instruments and Control Products, Power and Reactive Gas Products and Vacuum Products are included in the Company’s Advanced Manufacturing Capital Equipment Products segment as well as in the foreign sales and service operations because the products are sold through the foreign sales and service operations in their respective regions. Sales of the Analytical Solutions Group Products are included in the Analytical Solutions Group Products segment as well as in the foreign sales and service operations because the products are sold through the foreign sales and service operations in their respective regions.

Major Customers

The Company had two customers with net revenues greater than 10% of total net revenues in the periods shown as follows:


	Years Ended December 31,
	2012			2011			2010
Customer A		14.50	%		13.56	%		15.76	%
Customer B		10.12	%		6.52	%		9.00	%

- Definition

The entire disclosure for reporting segments including data and tables. Reportable segments include those that meet any of the following quantitative thresholds a) it's reported revenue, including sales to external customers and intersegment sales or transfers is 10 percent or more of the combined revenue, internal and external, of all operating segments b) the absolute amount of its reported profit or loss is 10 percent or more of the greater, in absolute amount of 1) the combined reported profit of all operating segments that did not report a loss or 2) the combined reported loss of all operating segments that did report a loss c) its assets are 10 percent or more of the combined assets of all operating segments.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 34
-URI http://asc.fasb.org/extlink&oid=6534315&loc=d3e8981-108599

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 41
-URI http://asc.fasb.org/extlink&oid=6534315&loc=d3e9038-108599

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 33
-URI http://asc.fasb.org/extlink&oid=6534315&loc=d3e8971-108599

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 12
-URI http://asc.fasb.org/extlink&oid=6534315&loc=d3e8595-108599

Reference 5: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6534315&loc=d3e8380-108599

Reference 6: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 32
-URI http://asc.fasb.org/extlink&oid=6534315&loc=d3e8933-108599

Reference 7: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 26
-URI http://asc.fasb.org/extlink&oid=6534315&loc=d3e8844-108599

Reference 8: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 35
-URI http://asc.fasb.org/extlink&oid=6534315&loc=d3e8984-108599

Reference 9: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 40
-URI http://asc.fasb.org/extlink&oid=6534315&loc=d3e9031-108599

Reference 10: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 42
-URI http://asc.fasb.org/extlink&oid=6534315&loc=d3e9054-108599

Reference 11: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 10
-URI http://asc.fasb.org/extlink&oid=6534315&loc=d3e8538-108599

Reference 12: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
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-URI http://asc.fasb.org/extlink&oid=6534315&loc=d3e8864-108599

Reference 13: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
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-URI http://asc.fasb.org/extlink&oid=6534315&loc=d3e8924-108599

Reference 14: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 30
-URI http://asc.fasb.org/extlink&oid=6534315&loc=d3e8906-108599

Reference 15: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 131
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

+ Details

Commitments and Contingencies

12 Months Ended

Dec. 31, 2012

Commitments and Contingencies

23)

Commitments and Contingencies

During the third quarter of 2012, the Company settled litigation with shareholders of its former subsidiary for $5,316. The complaint alleged certain claims against the Company including breach of contract and implied covenants, and statutory violations. The claims sought unspecified damages and equitable relief. The Company believed that it had meritorious factual and legal defenses to the allegations raised, but reached a settlement primarily to eliminate future legal expenses related to the suit.

The Company is subject to various other legal proceedings and claims, which have arisen in the ordinary course of business. In the opinion of management, the ultimate disposition of these matters will not have a material adverse effect on the Company’s results of operations, financial condition or cash flows.

The Company leases certain of its facilities and machinery and equipment under operating leases expiring in various years through 2022. Generally, the facility leases require the Company to pay maintenance, insurance and real estate taxes. Rental expense under operating leases totaled $8,219, $7,747 and $8,304 for 2012, 2011 and 2010, respectively.

Minimum lease payments under operating leases are as follows:


	Operating Leases
Year ending December 31,
2013	$	7,561
2014		5,749
2015		3,973
2016		2,974
2017		2,952
Thereafter		3,252

Total minimum lease payments	$	26,461

As of December 31, 2012, the Company has entered into purchase commitments for certain inventory components and other equipment and services used in its normal operations. The majority of these purchase commitments covered by these arrangements are for periods of less than one year and aggregate to approximately $125,378.

To the extent permitted by Massachusetts law, the Company’s Restated Articles of Organization, as amended, require the Company to indemnify any of its current or former officers or directors or any person who has served or is serving in any capacity with respect to any of the Company’s employee benefit plans. The Company believes that the estimated exposure for these indemnification obligations is currently not material. Accordingly, the Company has no material liabilities recorded for these requirements as of December 31, 2012.

The Company also enters into agreements in the ordinary course of business which include indemnification provisions. Pursuant to these agreements, the Company indemnifies, holds harmless and agrees to reimburse the indemnified party, generally its customers, for losses suffered or incurred by the indemnified party in connection with certain patent or other intellectual property infringement claims, and, in some instances, other claims, by any third party with respect to the Company’s products. The term of these indemnification obligations is generally perpetual after execution of the agreement. The maximum potential amount of future payments the Company could be required to make under these indemnification agreements is, in some instances, not contractually limited. The Company has never incurred costs to defend lawsuits or settle claims related to these indemnification obligations. As a result, the Company believes the estimated fair value of these obligations is minimal. Accordingly, the Company has no liabilities recorded for these obligations as of December 31, 2012.

As part of past acquisitions and divestitures of businesses or assets, the Company has provided a variety of indemnifications to the sellers and purchasers for certain events or occurrences that took place prior to the date of the acquisition or divestiture. Typically, certain of the indemnifications expire after a defined period of time following the transaction, but certain indemnifications may survive indefinitely. The maximum potential amount of future payments the Company could be required to make for such obligations is undeterminable at this time. Other than obligations recorded as liabilities at the time of the acquisitions, historically the Company has not made significant payments for these indemnifications. Accordingly, no material liabilities have been recorded for these obligations.

In conjunction with certain asset sales, the Company may provide routine indemnifications whose terms range in duration and often are not explicitly defined. Where appropriate, an obligation for such indemnification is recorded as a liability. Because the amounts of liability under these types of indemnifications are not explicitly stated, the overall maximum amount of the obligation under such indemnifications cannot be reasonably estimated. Other than obligations recorded as liabilities at the time of the asset sale, historically the Company has not made significant payments for these indemnifications.

MKS Instruments, Inc.

Supplemental Financial Data


	Quarter Ended
	March 31		June 30		Sept. 30		Dec. 31
	(Table in thousands, except per share data) (Unaudited)
2012
Statement of Operations Data
Net sales	$	190,868	$	177,397	$	141,447	$	133,796
Gross profit		83,791		76,516		56,571		52,601
Income from operations		33,369		27,847		6,392		6,615
Net income	$	22,768	$	18,572	$	2,580	$	4,109
Net income per share:
Basic	$	0.43	$	0.35	$	0.05	$	0.08
Diluted	$	0.43	$	0.35	$	0.05		0.08
Cash dividends paid per common share	$	0.15	$	0.15	$	0.16	$	0.16
2011
Statement of Operations Data
Net sales	$	231,851	$	224,487	$	194,508	$	171,671
Gross profit		106,361		104,988		87,678		75,961
Income from operations		56,508		57,305		41,112		30,000
Net income	$	38,043	$	38,601	$	30,373	$	22,714
Net income per share:
Basic	$	0.74	$	0.74	$	0.58	$	0.43
Diluted	$	0.73	$	0.73	$	0.57	$	0.43
Cash dividends paid per common share	$	0.15	$	0.15	$	0.15	$	0.15

- Definition

The entire disclosure for commitments and contingencies.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 825
-SubTopic 20
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6449706&loc=d3e16207-108621

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 460
-SubTopic 10
-Section 50
-Paragraph 8
-URI http://asc.fasb.org/extlink&oid=6398077&loc=d3e12565-110249

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 450
-SubTopic 20
-Section 50
-Paragraph 4
-URI http://asc.fasb.org/extlink&oid=6952336&loc=d3e14435-108349

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.25)
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Reference 5: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 440
-SubTopic 10
-Section 50
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=6394976&loc=d3e25287-109308

Reference 6: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name FASB Interpretation (FIN)
-Number 14
-Paragraph 3
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 7: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 5
-Paragraph 9, 10, 11, 12
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

+ Details

SCHEDULE II - VALUATION AND QUALIFYING ACCOUNTS

12 Months Ended

Dec. 31, 2012

SCHEDULE II - VALUATION AND QUALIFYING ACCOUNTS

MKS INSTRUMENTS, INC.

SCHEDULE II—VALUATION AND QUALIFYING ACCOUNTS


			Additions
Description	Balance at Beginning of Year		Charged to Costs and Expenses		Charged to Other Accounts		Deductions & Write-offs		Balance at End of Year
	(Dollars in thousands)
Accounts receivable allowance:
Years ended December 31,
2012	$	2,516	$	3,452	$	—	$	3,089	$	2,879
2011	$	2,557	$	3,390	$	—	$	3,431	$	2,516
2010	$	2,415	$	3,637	$	—	$	3,495	$	2,557


			Additions
Description	Balance at Beginning of Year		Charged to Costs and Expenses			Charged to Other Accounts		Deductions		Balance at End of Year
	(Dollars in thousands)
Valuation allowance on deferred tax asset:
Years ended December 31,
2012	$	26,475	$	(44	)	$	1,066		—	$	27,497
2011	$	25,267	$	—		$	1,208	$	—	$	26,475
2010	$	5,201	$	—		$	20,833	$	767	$	25,267

Summary of Significant Accounting Policies (Policies)	12 Months Ended
Summary of Significant Accounting Policies (Policies)	Dec. 31, 2012
Revenue Recognition and Accounts Receivable Allowances	Revenue Recognition and Accounts Receivable Allowances Revenue from product sales is recorded upon transfer of title and risk of loss to the customer provided that there is evidence of an arrangement, the sales price is fixed or determinable, and collection of the related receivable is reasonably assured. In most transactions, the Company has no obligations to customers after the date products are shipped other than pursuant to warranty obligations. In some instances, the Company provides installation, training, support and services to customers after the product has been shipped. For revenue arrangements with multiple deliverables, the Company allocates revenue to each element based upon their relative selling price using vendor-specific objective evidence (“VSOE”), or third-party evidence (“TPE”) or based upon the relative selling price using estimated prices if VSOE or TPE does not exist. The Company then recognizes revenue on each deliverable in accordance with its policies for product and service revenue recognition. The Company provides for the estimated costs to fulfill customer warranty obligations upon the recognition of the related revenue. Shipping and handling fees, if any, billed to customers are recognized as revenue. The related shipping and handling costs are recognized in cost of sales. Accounts receivable allowances include sales returns and bad debt allowances. The Company monitors and tracks the amount of product returns and reduces revenue at the time of shipment for the estimated amount of such future returns, based on historical experience. The Company makes estimates evaluating its allowance for doubtful accounts. The Company continuously monitors collections and payments from its customers and maintains a provision for estimated credit losses based upon its historical experience and any specific customer collection issues that it has identified.
Research and Development	Research and Development Research and development costs are expensed as incurred and consist mainly of compensation related expenses and project materials. The Company’s research and development efforts include numerous projects, which generally have a duration of 3 to 30 months. Acquired in-process research and development (“IPR&D”) expenses, which are capitalized at fair value as an intangible asset until the related project is completed, are then amortized over the estimated useful life of the product. Projects that are abandoned are immediately written off.
Advertising Costs	Advertising Costs Advertising costs are expensed as incurred and were immaterial in 2012, 2011 and 2010.
Stock-Based Compensation	Stock-Based Compensation The accounting for share-based compensation expense requires the measurement and recognition of compensation expense for all share-based payment awards made to employees and directors based on estimated fair values. For restricted stock units (“RSUs”), the fair value is the fair value on the date of grant. The Company also provides employees the opportunity to purchase shares through an Employee Stock Purchase Plan (“ESPP”). For shares issued under its ESPP, the Company has estimated the fair value on the date of grant using the Black Scholes pricing model, which is affected by the Company’s stock price as well as assumptions regarding a number of complex and subjective variables. These variables include the Company’s expected stock price volatility over the term of the awards, expected life, risk free interest rate and expected dividends. The Company is also required to estimate forfeitures at the time of grant and revise those estimates in subsequent periods if actual forfeitures differ from those estimates. Management determined that blended volatility, a combination of historical and implied volatility, is more reflective of market conditions and a better indicator of expected volatility than historical or implied volatility alone. The assumptions used in calculating the fair value of share-based payment awards represent management’s best estimates, but these estimates involve inherent uncertainties and the application of management judgment. As a result, if factors change and the Company uses different assumptions, its stock-based compensation expense could be materially different in the future.
Other Comprehensive Income	Other Comprehensive Income For foreign subsidiaries where the functional currency is the local currency, assets and liabilities are translated into U.S. dollars at the current exchange rate on the balance sheet date. Revenue and expenses are translated at average rates of exchange prevailing during the year. Translation adjustments resulting from this process are recorded to Other Comprehensive Income (“OCI”). Unrealized gains and losses on securities classified as available-for-sale are included in accumulated other comprehensive income in consolidated stockholders’ equity. For derivative instruments designated as cash-flow hedges, the effective portion of the derivative’s gain (loss) is initially reported as a component of OCI and is subsequently recognized in earnings when the hedged exposure is recognized in earnings.
Net Income Per Share	Net Income Per Share Basic net income per share is based on the weighted average number of common shares outstanding, and diluted net income per share is based on the weighted average number of common shares outstanding and all potential dilutive common equivalent shares outstanding. The dilutive effect of options is determined under the treasury stock method using the average market price for the period. Common equivalent shares are included in the per share calculations when the effect of their inclusion would be dilutive.
Cash and Cash Equivalents and Investments	Cash and Cash Equivalents and Investments All highly liquid investments with a maturity date of three months or less at the date of purchase are considered to be cash equivalents. The appropriate classification of investments in securities is determined at the time of purchase. Debt securities that the Company does not have the intent and ability to hold to maturity are classified as “available-for-sale” and are carried at fair value. Mutual funds that are bought and held principally for the purpose of selling them in the near term are classified as “trading” and are carried at fair value. The Company reviews its investment portfolio on a monthly basis to identify and evaluate individual investments that have indications of possible impairment. The factors considered in determining whether a loss is other-than-temporary include: the length of time and extent to which fair market value has been below the cost basis, the financial condition and near-term prospects of the issuer, credit quality, and the Company’s ability to hold the investment for a period of time sufficient to allow for any anticipated recovery in fair value.
Concentrations of Credit Risk	Concentrations of Credit Risk The Company’s significant concentrations of credit risk consist principally of cash and cash equivalents, investments, forward exchange contracts and trade accounts receivable. The Company maintains cash and cash equivalents with financial institutions including some banks with which it had borrowings. The Company maintains investments primarily in U.S. Treasury and government agency securities and corporate debt securities. The Company enters into forward currency contracts with high credit-quality financial institutions in order to minimize credit risk exposure. The Company’s customers are primarily concentrated in the semiconductor industry, and a limited number of customers account for a significant portion of the Company’s revenues. The Company regularly monitors the creditworthiness of its customers and believes it has adequately provided for potential credit loss exposures. Credit is extended for all customers based primarily on financial condition and collateral is not required. The Company had one customer comprising 14%, 14% and 16% of net sales for 2012, 2011 and 2010, respectively and another customer comprising 10%, 7% and 9% of net sales for 2012, 2011 and 2010. During the years 2012, 2011 and 2010, approximately 62%, 61% and 64% of the Company’s net sales, respectively, were to semiconductor capital equipment manufacturers and semiconductor device manufacturers. There was one customer comprising 10% or more of the Company’s accounts receivable balance as of December 31, 2012.
Inventories	Inventories Inventories are stated at the lower of cost or market, cost being determined using a standard costing system which approximates cost based on a first-in, first-out method. The Company regularly reviews inventory quantities on hand and records a provision to write-down excess and obsolete inventory to its estimated net realizable value, if less than cost, based primarily on its estimated forecast of product demand.
Property, Plant and Equipment	Property, Plant and Equipment Property, plant and equipment are stated at cost. Equipment acquired under capital leases is recorded at the present value of the minimum lease payments required during the lease period. Expenditures for major renewals and betterments that extend the useful lives of property, plant and equipment are capitalized. Expenditures for maintenance and repairs are charged to expense as incurred. When assets are sold or otherwise disposed of, the cost and related accumulated depreciation are eliminated from the accounts and any resulting gain or loss is recognized in earnings. Depreciation is provided on the straight-line method over the estimated useful lives of twenty to thirty-one and one-half years for buildings and three to seven years for machinery and equipment, furniture and fixtures and office equipment, which includes enterprise resource planning software. Leasehold improvements are amortized over the shorter of the lease term or the estimated useful life of the leased asset.
Intangible Assets	Intangible Assets Intangible assets resulting from the acquisitions of businesses are estimated by management based on the fair value of assets acquired. These include acquired customer lists, technology, patents, trade names, covenants not to compete and IPR&D. Intangible assets are amortized from two to ten years on a straight-line basis which represents the estimated periods of benefit and the expected pattern of consumption.
Goodwill	Goodwill Goodwill is the amount by which the cost of acquired net assets exceeded the fair value of those net assets on the date of acquisition. The Company allocates goodwill to reporting units at the time of acquisition or when there is a change in the reporting structure and bases that allocation on which reporting units will benefit from the acquired assets and liabilities. Reporting units are defined as operating segments or one level below an operating segment, referred to as a component. The Company assesses goodwill for impairment on an annual basis as of October 31 or more frequently when events and circumstances occur indicating that the recorded goodwill may be impaired. The Company has the option of either assessing qualitative factors to determine whether it is necessary to perform the current two-step impairment test or performing the two-step impairment test without doing the qualitative assessment. In the current fiscal year, the Company performed the quantitative two-step goodwill impairment analysis. In the first step, the Company compares the fair value of its reporting unit to its carrying value. If the carrying value of the net assets assigned to the reporting unit exceeds the fair value of our reporting unit, then the second step of the impairment test is performed in order to determine the implied fair value of the reporting unit’s goodwill. If the carrying value of the Company’s reporting unit’s goodwill exceeds its implied fair value, then the Company records an impairment loss equal to the difference. The Company determined the fair value of its reporting units using a discounted cash flow analysis, derived from internal earnings and internal and external market forecasts. Discount rates are based on a weighted average cost of capital (“WACC”), which represents the average rate a business must pay its providers of debt and equity. The WACC used to test goodwill was derived from a group of comparable companies. The cash flows employed in the DCF analysis were derived from internal earnings and forecasts and external market forecast. Assumptions in estimating future cash flows are subject to a high degree of judgment and complexity. The Company makes every effort to forecast these future cash flows as accurately as possible with the information available at the time the forecast is developed. As of October 31, 2012, the Company performed its annual impairment assessment of goodwill using the two-step analysis and determined that there was no impairment.
Impairment of Long-Lived Assets	Impairment of Long-Lived Assets The Company evaluates the recoverability of its long-lived assets whenever events and changes in circumstances indicate that the carrying amount of an asset may not be fully recoverable. This periodic review may result in an adjustment of estimated depreciable lives or asset impairment. When indicators of impairment are present, the carrying values of the asset are evaluated in relation to their operating performance and future undiscounted cash flows of the underlying business. If the future undiscounted cash flows are less than their carrying value, impairment exists. The impairment is measured as the difference between the carrying value and the fair value of the underlying asset. Fair values are based on estimates of market prices and assumptions concerning the amount and timing of estimated future cash flows and assumed discount rates, reflecting varying degrees of perceived risk.
Foreign Exchange	Foreign Exchange The functional currency of the majority of the Company’s foreign subsidiaries is the applicable local currency. For those subsidiaries, assets and liabilities are translated to U.S. dollars at year-end exchange rates. Income and expense accounts are translated at the average exchange rates prevailing during the year. The resulting translation adjustments are included in accumulated other comprehensive income in consolidated stockholders’ equity. Foreign exchange transaction gains and losses, which arise from transaction activity, are reflected in selling, general and administrative expenses in the statement of operations. Net foreign exchange gains and losses resulting from re-measurement are included in selling general and administrative expense and were a gain of $301, a loss of $126 and a loss of $728, respectively, for the years ended December 31, 2012, 2011 and 2010. These amounts do not reflect the corresponding gain (loss) from foreign exchange contracts. See Note 7 “Derivatives” regarding foreign exchange contracts.
Income Taxes	Income Taxes The Company records income taxes using the asset and liability method. Deferred income tax assets and liabilities are recognized for the future tax consequences attributable to differences between the financial statement carrying amounts of existing assets and liabilities and their respective income tax bases, and operating loss and tax credit carryforwards. On a quarterly basis, the Company evaluates both the positive and negative evidence that affects the realizability of net deferred tax assets and assesses the need for a valuation allowance. The future benefit to be derived from its deferred tax assets is dependent upon its ability to generate sufficient future taxable income to realize the assets. The Company records a valuation allowance to reduce its net deferred tax assets to the amount that is more likely than not to be realized. To the extent the Company establishes a valuation allowance an expense will be recorded as a component of the provision for income taxes on the statement of operations. As of December 31, 2010, the Company had a valuation allowance of $25,267 primarily related to capital losses incurred from its divested operations, and state tax credit carryforwards. During 2011, the Company increased its valuation allowance by $1,208 primarily related to capital losses incurred from its foreign affiliates as management determined it is more likely than not that the deferred tax assets related to these attributes will not be realized. As a result, the valuation allowance was $26,475 at December 31, 2011. During 2012, the Company increased its valuation allowance by $1,022 primarily related to an increase in state tax credit carryforwards as management determined it is more likely than not that the deferred tax assets related to these attributes will not be realized. As a result, the valuation allowance is $27,497 at December 31, 2012. Accounting for income taxes requires a two-step approach to recognize and measure uncertain tax positions. The first step is to evaluate the tax position for recognition by determining if, based on the technical merits, it is more likely than not that the position will be sustained upon audit, including resolutions of related appeals or litigation processes, if any. The second step is to measure the tax benefit as the largest amount that is more than 50% likely of being realized upon ultimate settlement. The Company reevaluates these uncertain tax positions on a quarterly basis. This evaluation is based on factors including, but not limited to, changes in facts or circumstances, changes in tax law, effectively settled issues under audit and new audit activity. Any change in these factors could result in the recognition of a tax benefit or an additional charge to the tax provision.
Offsetting Assets and Liabilities	In December 2011, the FASB issued ASU No. 2011-11, “Disclosures about Offsetting Assets and Liabilities.” This ASU is intended to enhance the understanding of the effects of netting arrangements on an entity’s financial statements, including financial instruments and derivative instruments that are either offset or subject to a master netting arrangement. The scope of this ASU includes derivatives, sale and repurchase agreements, reverse sale and repurchase agreements, and securities borrowing and lending arrangements. In January 2013, the FASB issued ASU No. 2013-01 “Clarifying the Scope of Disclosures about Offsetting Assets and Liabilities.” This standard provided additional guidance on the scope of ASU 2011-11. The provisions of this ASU are effective for interim and annual periods beginning on or after January 1, 2013. This new ASU is not expected to have a material effect on the Company’s consolidated financial statements.

Investments (Tables)

12 Months Ended

Dec. 31, 2012

Schedule of Fair Value of Available for Sale of Investments

The fair value of short-term investments with maturities or estimated lives of less than one year consists of the following:


	Years Ended December 31,
	2012		2011
Available-for-sale investments:
Time deposits	$	52	$	37
Bankers acceptance drafts		242		962
U.S. treasury obligations		13,054		29,404
U.S. agency obligations		313,514		221,565

		326,862		251,968
Trading investments:
Mutual funds(1)		791		635

	$	327,653	$	252,603

(1)	The mutual funds are associated with the Company’s supplemental defined contribution retirement obligations.

Fair Value of Long-Term Available-for-Sale Investments

The fair value of long-term available-for-sale investments with maturities or estimated lives of more than one year consists of the following:


	Years Ended December 31,
	2012		2011
U.S. agency obligations	$	12,158	$	7,873

Gross Unrealized Gains and (Losses) Aggregated by Investment Category Short-Term and Long-Term Securities

The following table shows the gross unrealized gains and (losses) aggregated by investment category for short-term and long-term available-for-sale investments:


	Cost		Gross Unrealized Gains		Gross Unrealized (Losses)			Estimated Fair Value
As of December 31, 2012:
Short-term investments:
Available-for-sale investments:
Time deposits	$	52	$	—	$	—		$	52
Bankers acceptance drafts		242		—		—			242
U.S. treasury obligations		13,045		9		—			13,054
U.S. agency obligations		313,262		258		(6	)		313,514

	$	326,601	$	267	$	(6	)	$	326,862

Long-term investments:
U.S. agency obligations	$	12,156	$	2	$	—		$	12,158


	Cost		Gross Unrealized Gains		Gross Unrealized (Losses)			Estimated Fair Value
As of December 31, 2011:
Short-term investments:
Available-for-sale investments:
Time deposits	$	37	$	—	$	—		$	37
Bankers acceptance drafts		962		—		—			962
U.S. treasury obligations		29,393		11		—			29,404
U.S. agency obligations		221,516		56		(7	)		221,565

	$	251,908	$	67	$	(7	)	$	251,968

Long-term investments:
U.S. agency obligations	$	7,876	$	—	$	(3	)	$	7,873

- Definition

Tabular disclosure of available-for-sale securities which includes, but is not limited to, changes in the cost basis and fair value, fair value and gross unrealized gain (loss), fair values by type of security, contractual maturity and classification, amortized cost basis, contracts to acquire securities to be accounted for as available-for-sale, debt maturities, transfers to trading, change in net unrealized holding gain (loss) net of tax, continuous unrealized loss position fair value, aggregate losses qualitative disclosures, other than temporary impairment (OTTI) losses or other disclosures related to available for sale securities.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 320
-Section 50
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=6957658&loc=d3e62557-112803

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
-SubTopic 10
-Section 50
-Paragraph 7
-URI http://asc.fasb.org/extlink&oid=6872113&loc=d3e27337-111563

Reference 3: http://www.xbrl.org/2003/role/presentationRef
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Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 320
-Section 50
-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=6957658&loc=d3e62586-112803

Reference 5: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
-SubTopic 10
-Section 50
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=6872113&loc=d3e27161-111563

Reference 6: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
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-URI http://asc.fasb.org/extlink&oid=6872113&loc=d3e27357-111563

Reference 7: http://www.xbrl.org/2003/role/presentationRef
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-Name Accounting Standards Codification
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-URI http://asc.fasb.org/extlink&oid=6872113&loc=d3e27290-111563

Reference 8: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 115
-Paragraph 19, 20, 21
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 9: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name FASB Staff Position (FSP)
-Number FAS115-1/124-1
-Paragraph 17
-Subparagraph a, b
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 10: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Emerging Issues Task Force (EITF)
-Number 03-1
-Paragraph 21
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-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

+ Details

Fair Value Measurements (Tables)

12 Months Ended

Dec. 31, 2012

Schedule of Fair Value of Assets and Liabilities Measured on Recurring Basis

Assets and liabilities of the Company measured at fair value on a recurring basis as of December 31, 2012, are summarized as follows:


			Fair Value Measurements at Reporting Date Using
Description	December 31, 2012		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
Assets:
Cash equivalents:
Money market funds	$	51,291	$	51,291	$	—	$	—
Bankers acceptance drafts		16		—		16		—
Trading securities:
Mutual funds		791		791		—		—
Available-for-sale securities:
Bankers acceptance drafts		242		—		242		—
U.S. treasury obligations		13,054		—		13,054		—
U.S. agency obligations		325,672		295,665		30,007		—
Derivatives — currency forward contracts		961		—		961		—

Total assets	$	392,027	$	347,747	$	44,280	$	—

Liabilities:
Derivatives — currency forward contracts	$	1,310	$	—	$	1,310	$	—

Reported as follows:
Assets:
Cash and cash equivalents(1)	$	51,307	$	51,291	$	16	$	—
Short-term investments(2)		327,601		284,298		43,303		—
Other current assets		961		—		961		—

	$	379,869	$	335,589	$	44,280	$	—

Long-term investments	$	12,158	$	12,158	$	—	$	—

Liabilities:
Other current liabilities	$	1,310	$	—	$	1,310	$	—

(1)	The cash and cash equivalent amounts presented in the table above do not include cash of $185,143 and non-negotiable time deposits of $51,138 as of December 31, 2012.

(2)	The short-term investments presented in the table above do not include non-negotiable time deposits of $52 as of December 31, 2012.

Assets and liabilities of the Company measured at fair value on a recurring basis as of December 31, 2011, are summarized as follows:


			Fair Value Measurements at Reporting Date Using
Description	December 31, 2011		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
Assets:
Cash equivalents:
Money market funds	$	137,976	$	137,976	$	—	$	—
Trading securities:
Mutual funds		635		635		—		—
Available-for-sale securities:
Bankers acceptance drafts		962		—		962		—
U.S. treasury obligations		29,404		—		29,404		—
U.S. agency obligations		229,438		147,546		81,892		—
Derivatives — currency forward contracts		531		—		531		—

Total assets	$	398,946	$	286,157	$	112,789	$	—

Liabilities:
Derivatives — currency forward contracts	$	1,054	$	—	$	1,054	$	—

Reported as follows:
Assets:
Cash and cash equivalents(1)	$	137,976	$	137,976	$	—	$	—
Short-term investments(2)		252,566		140,308		112,258		—
Other current assets		531		—		531		—

	$	391,073	$	278,284	$	112,789	$	—

Long-term investments	$	7,873	$	7,873	$	—	$	—

Liabilities:
Other current liabilities	$	1,054	$	—	$	1,054	$	—

(1)	The cash and cash equivalent amounts presented in the table above do not include cash of $146,035 and non-negotiable time deposits of $28,905 as of December 31, 2011.

(2)	The short-term investments presented in the table above do not include non-negotiable time deposits of $37 as of December 31, 2011.

Derivatives (Tables)

12 Months Ended

Dec. 31, 2012

Summary of Primary Net Hedging Positions and Corresponding Fair Values

The following tables provide a summary of the primary net hedging positions and corresponding fair values held as of December 31, 2012 and 2011:


	December 31, 2012
Currency Hedged (Buy/Sell)	Gross Notional Value		Fair Value(1)
U.S. Dollar/Japanese Yen	$	13,992	$	961
U.S. Dollar/South Korean Won		19,374		(1,180	)
U.S. Dollar/Euro		4,217		(57	)
U.S. Dollar/U.K. Pound Sterling		3,865		(73	)

Total	$	41,448	$	(349	)


	December 31, 2011
Currency Hedged (Buy/Sell)	Gross Notional Value		Fair Value(1)
U.S. Dollar/Japanese Yen	$	18,676	$	(961	)
U.S. Dollar/South Korean Won		10,799		60
U.S. Dollar/Euro		3,869		288
U.S. Dollar/U.K. Pound Sterling		2,775		90

Total	$	36,119	$	(523	)

(1)	Represents the net receivable (payable) amount included in the consolidated balance sheet.

Summary of Fair Value Amounts of Company's Derivative Instruments

The following table provides a summary of the fair value amounts of the Company’s derivative instruments:


	Years Ended December 31,
Derivatives Designated as Hedging Instruments	2012			2011
Derivative assets:
Forward exchange contracts	$	961		$	531
Derivative liabilities:
Forward exchange contracts		(1,310	)		(1,054	)

Total net derivative (liability) designated as hedging instruments(1)	$	(349	)	$	(523	)

(1)

Summary of Gains (Losses) on Derivatives Designated as Hedging Instruments

The following table provides a summary of the gains (losses) on derivatives designated as hedging instruments:


	Years Ended December 31,
Derivatives Designated as Cash Flow Hedging Relationships	2012			2011			2010
Forward exchange contracts:
Net gain (loss) recognized in OCI(1)	$	936		$	4,311		$	(3,346	)
Net (loss) reclassified from accumulated OCI into income(2)	$	(930	)	$	(4,021	)	$	(957	)

(1)	Net change in the fair value of the effective portion classified in OCI.

(2)	Effective portion classified as selling, general and administrative in 2012 and 2011 and as cost of products in 2010.

Summary of (Losses) on Derivatives Not Designated as Hedging Instruments

The following table provides a summary of (losses) on derivatives not designated as hedging instruments:


	Years Ended December 31,
Derivatives Not Designated as Hedging Instruments	2012			2011		2010
Forward exchange contracts:
Net (loss) recognized in income(1)	$	(1,606	)	$	—	$	—

(1)	The Company has a forward foreign exchange contract that hedges an intercompany loan with its Korean subsidiary. This hedge does not qualify for hedge accounting and any gains (losses) are recorded immediately in selling, general and administrative expenses.

- Definition

Tabular disclosure of pertinent information about a derivative or group of derivatives on a disaggregated basis, such as for individual instruments, or small groups of similar instruments. May include a combination of the type of instrument, risks being hedged, notional amount, hedge designation, related hedged item, inception date, maturity date, or other relevant item.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 4B
-URI http://asc.fasb.org/extlink&oid=7476318&loc=SL5624163-113959

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 5
-URI http://asc.fasb.org/extlink&oid=7476318&loc=d3e41641-113959

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 4
-URI http://asc.fasb.org/extlink&oid=7476318&loc=d3e41638-113959

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 8
-URI http://asc.fasb.org/extlink&oid=7476318&loc=d3e41678-113959

Reference 5: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 1B
-URI http://asc.fasb.org/extlink&oid=7476318&loc=SL5580258-113959

Reference 6: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 4C
-URI http://asc.fasb.org/extlink&oid=7476318&loc=SL5624171-113959

Reference 7: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 1A
-URI http://asc.fasb.org/extlink&oid=7476318&loc=SL5579245-113959

Reference 8: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=7476318&loc=SL5579240-113959

Reference 9: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 25
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6886632&loc=d3e76258-113986

Reference 10: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 235
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.4-08.(n)(2))
-URI http://asc.fasb.org/extlink&oid=6881521&loc=d3e23780-122690

Reference 11: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=7476318&loc=d3e41620-113959

+ Details

Inventories (Tables)

12 Months Ended

Dec. 31, 2012

Summary of Inventories

Inventories consist of the following:


	Years Ended December 31,
	2012		2011
Raw material	$	76,610	$	78,501
Work-in-process		19,708		21,298
Finished goods		38,321		53,833

	$	134,639	$	153,632

Property, Plant and Equipment (Tables)

12 Months Ended

Dec. 31, 2012

Summary of Property, Plant and Equipment

Property, plant and equipment consist of the following:


	Years Ended December 31,
	2012		2011
Land	$	9,188	$	8,119
Buildings		68,831		64,962
Machinery and equipment		115,032		107,304
Furniture and fixtures, office equipment and software		51,669		48,516
Leasehold improvements		18,003		18,617
Construction in progress		9,227		7,075

		271,950		254,593
Less: accumulated depreciation and amortization		191,434		182,106

	$	80,516	$	72,487

Acquisition (Tables)

12 Months Ended

Dec. 31, 2012

Summary of Estimated Fair Value of Assets Acquired and Liabilities Assumed

The following table summarizes the estimated fair value of the assets acquired and liabilities assumed at the date of the acquisition.


Current assets	$	5,536
Property, plant and equipment		3,565
Other assets		554
Intangible assets		10,745
Goodwill		9,989

Total assets acquired	$	30,389

Debt (Note 15)		4,561
Deferred taxes and other liabilities		3,128

Total liabilities assumed	$	7,689

Total purchase price	$	22,700
Cash acquired		(93	)

Total purchase price, net of cash acquired	$	22,607

Allocation of Acquired Intangible Assets and Related Estimates of Useful Lives

The following table reflects the allocation of the acquired intangible assets and related estimates of useful lives. These acquired intangibles will be amortized on a straight-line basis.


Current developed technology	$	5,029	7.5 – 9.5 years useful life
Tradenames		335	7 year useful life
Customer relationships		5,381	10 year useful life

	$	10,745

Goodwill and Intangible Assets (Tables)

12 Months Ended

Dec. 31, 2012

Goodwill

The changes in the carrying amount of goodwill and accumulated impairment losses were as follows:


	2012							2011
	Gross Carrying Amount		Accumulated Impairment Loss			Net		Gross Carrying Amount		Accumulated Impairment Loss			Net
Beginning balance at January 1	$	279,498	$	(139,414	)	$	140,084	$	279,434	$	(139,414	)	$	140,020
Acquired goodwill(1)		9,989		—			9,989		64		—			64
Foreign currency translation		660		—			660		—		—			—

Ending balance at December 31	$	290,147	$	(139,414	)	$	150,733	$	279,498	$	(139,414	)	$	140,084

(1)

Goodwill Associated with Reportable Segments

Goodwill associated with each of our reportable segments is as follows:


	Years Ended December 31,
	2012		2011
Reportable segment:
Advanced Manufacturing Capital Equipment	$	142,065	$	125,026
Analytical Solutions Group		8,668		15,058
Europe Region Sales & Service		—		—
Asia Region Sales & Service		—		—

Total goodwill	$	150,733	$	140,084

Intangible Assets

Components of the Company’s acquired intangible assets are comprised of the following:


As of December 31, 2012	Gross		Accumulated Amortization			Foreign Currency Translation		Net
Completed technology(1)(2)	$	82,084	$	(77,243	)	$	254	$	5,095
Customer relationships(2)		14,571		(8,886	)		312		5,997
Patents, trademarks, trade names and other(2)		25,038		(24,587	)		18		469

	$	121,693	$	(110,716	)	$	584	$	11,561

(1)	Intangible assets of $226 were re-classified from other assets to intangible assets (completed technology) during the quarter ended March 31, 2012. This was related to in-process research and development which was completed during the first quarter of 2012, related to a previous acquisition.

(2)	On August 29, 2012, the Company purchased Plasmart for $22,607, net of cash acquired. The Company recorded $10,745 of separately identified intangible assets, of which $5,029 was completed technology, $5,381 was customer relationships and $335 was trade names.


As of December 31, 2011	Gross		Accumulated Amortization			Foreign Currency Translation		Net
Completed technology	$	76,829	$	(76,829	)	$	—	$	—
Customer relationships(1)		9,190		(8,393	)		—		797
Patents, trademarks, trade names and other(1)		24,703		(24,457	)		—		246

	$	110,722	$	(109,679	)	$	—	$	1,043

(1)	In September 2011, the Company purchased a product line from GE Osmonics, Inc. for $458. The Company recorded $315 of intangible assets in connection with the acquisition of which $250 was customer relationships and $65 was trade names.

Estimated Amortization Expense

Estimated amortization expense for each of the five remaining fiscal years and thereafter is as follows:


Year	Amount
2013	$	1,639
2014		1,261
2015		1,245
2016		1,244
2017		1,244
Thereafter		4,928

- Definition

Tabular disclosure of goodwill by reportable segment and in total which includes a rollforward schedule.

+ References + Details

Other Assets (Tables)

12 Months Ended

Dec. 31, 2012

Other Assets


	Years Ended December 31,
	2012		2011
Other Current Assets:
Income tax receivable	$	12,768	$	12,005
Prepaid income taxes		4,344		8,540
Other		10,936		13,693

Total other current assets	$	28,048	$	34,238

Other Assets:
Deferred tax assets, net	$	9,497	$	10,274
Other		2,195		1,992

Total other assets	$	11,692	$	12,266

Other Liabilities (Tables)

12 Months Ended

Dec. 31, 2012

Other Liabilities


	Years Ended December 31,
	2012		2011
Other Current Liabilities:
Product warranties	$	8,266	$	8,315
Deferred revenue		9,280		11,553
Non-income taxes		3,514		8,319
Other		16,345		12,137

Total other current liabilities	$	37,405	$	40,324

Other Liabilities:
Long-term income tax payable	$	20,880	$	16,084
Accrued compensation		18,750		15,174
Other		3,745		953

Total other liabilities	$	43,375	$	32,211

Product Warranties (Tables)

12 Months Ended

Dec. 31, 2012

Product Warranty Activities

Product warranty activities were as follows:


	Years Ended December 31,
	2012			2011
Beginning balance	$	8,315		$	9,865
Provisions for product warranties		4,514			5,766
Direct charges to warranty liability		(4,985	)		(6,857	)
Foreign currency translation		422			(459	)

Ending balance	$	8,266		$	8,315

Income Taxes (Tables)

12 Months Ended

Dec. 31, 2012

Reconciliation of Company's Effective Tax Rate to U.S. Federal Statutory Rate

A reconciliation of the Company’s effective tax rate to the U.S. federal statutory rate is as follows:


	Years Ended December 31,
	2012			2011			2010
U.S. Federal income tax statutory rate		35.0	%		35.0	%		35.0	%
Federal tax credits		—			(0.7	)		(1.1	)
State income taxes, net of federal benefit		1.3			1.1			1.0
Effect of foreign operations taxed at various rates		(2.6	)		(4.1	)		(2.4	)
Qualified production activity tax benefit		(0.5	)		(1.1	)		(0.8	)
Deferred tax asset valuation allowance		1.4			0.6			(0.1	)
Other		1.5			(0.5	)		0.7

		36.1	%		30.3	%		32.3	%

Components of Income from Continuing Operations Before Income Taxes and Related Provision for Income Taxes

The components of income from continuing operations before income taxes and the related provision for income taxes consist of the following:


	Years Ended December 31,
	2012		2011			2010
Income from continuing operations before income taxes:
United States	$	28,652	$	108,474		$	110,779
Foreign		46,484		77,578			85,645

	$	75,136	$	186,052		$	196,424


Current taxes:
United States	$	10,431	$	25,824		$	27,789
State		783		2,602			3,323
Foreign		12,074		20,346			22,296

		23,288		48,772			53,408

Deferred taxes:
United States		2,019		7,795			10,021
State and Foreign		1,800		(246	)		76

		3,819		7,549			10,097

Provision for income taxes	$	27,107	$	56,321		$	63,505

Significant Components of Deferred Tax Assets and Deferred Tax Liabilities

The significant components of the deferred tax assets and deferred tax liabilities are as follows:


	Years Ended December 31,
	2012			2011
Deferred tax assets:
Loss carryforwards and credits	$	29,032		$	28,053
Inventory and warranty reserves		10,959			8,789
Accounts receivable and other accruals		2,647			6,875
Stock-based compensation		5,032			4,610
Executive supplemental retirement benefits		6,132			4,826
Other		—			1,245

Total deferred tax assets	$	53,802		$	54,398


Deferred tax liabilities:
Acquired intangible assets		(5,857	)		(3,330	)
Depreciation and amortization		(4,461	)		(3,679	)
Other		(1,145	)		(22	)

Total deferred tax liabilities		(11,463	)		(7,031	)

Valuation allowance		(27,497	)		(26,475	)

Net deferred tax assets	$	14,842		$	20,892

Reconciliation of Beginning and Ending Amount of Gross Unrecognized Tax Benefits

A reconciliation of the beginning and ending amount of gross unrecognized tax benefits is as follows:


	Years Ended December 31,
	2012		2011			2010
Balance at beginning of year	$	36,540	$	22,028		$	9,085
Decreases for prior years		—		(3	)		(6	)
Increases for the current year		4,134		16,663			13,553
Reductions related to settlements with taxing authorities		—		(2,148	)		—
Reductions related to expiration of statute of limitations		—		—			(604	)

Balance at end of year	$	40,674	$	36,540		$	22,028

- Definition

Tabular disclosure of tax positions taken in the tax returns filed or to be filed for which it is more likely than not that the tax position will not be sustained upon examination by taxing authorities (i.e., uncertain tax positions) and other types of income tax contingencies, including: (1) the policy on classification of interest and penalties; (2) a tabular reconciliation of the total amounts of unrecognized tax benefits at the beginning and end of the period; the total amount(s) of: (3) unrecognized tax benefits that, if recognized, would affect the effective tax rate, and (4) interest and penalties recognized in each of the income statement and balance sheet; (5) for positions for which it is reasonably possible that the total amounts unrecognized will significantly change within 12 months of the reporting date the: (i) nature of the uncertainty, (ii) nature of the event that could occur that would cause the change, and (iii) an estimate of the range of the reasonably possible change or a statement that an estimate of the range cannot be made; and (6) a description of tax years that remain subject to examination by major tax jurisdictions.

+ References + Details

Discontinued Operations (Tables)

12 Months Ended

Dec. 31, 2012

Net Revenues and Income from Discontinued Operations

Net revenues and income from discontinued operations are below:


	Years Ended December 31,
	2012		2011		2010
Net revenues	$	—	$	—	$	11,974


Income from discontinued operations before income taxes		—		—		2,320
Gain from disposal of discontinued operations before income taxes		—		—		4,432
Income tax benefit		—		—		2,916

Income from discontinued operations	$	—	$	—	$	9,668

Stock-Based Compensation (Tables)

12 Months Ended

Dec. 31, 2012

Summary of Activity for RSUs

The following table presents the activity for RSUs under the Plans:


	Years Ended December 31,
	2012					2011					2010
	Non-vested RSUs			Weighted Average Grant Date Fair Value		Non-vested RSUs			Weighted Average Grant Date Fair Value		Non-vested RSUs			Weighted Average Grant Date Fair Value
Non-vested RSUs — beginning of period		1,115,005		$	21.50		1,327,306		$	18.34		1,581,883		$	19.77
Granted		426,583		$	29.14		397,492		$	30.27		555,995		$	19.63
Vested		(557,314	)	$	19.01		(569,891	)	$	20.42		(706,224	)	$	20.65
Forfeited or expired		(42,071	)	$	22.36		(39,902	)	$	18.36		(104,348	)	$	18.32

Non-vested RSUs — end of period		942,203		$	26.58		1,115,005		$	21.50		1,327,306		$	18.34

Summary of Activity for Options

The following table presents the activity for options under the Plans:


	Years Ended December 31,
	2012					2011					2010
	Options			Weighted Average Exercise Price		Options			Weighted Average Exercise Price		Options			Weighted Average Exercise Price
Outstanding — beginning of period		420,712		$	21.97		1,793,214		$	22.38		2,514,822		$	21.67
Exercised		(123,650	)	$	18.78		(1,351,684	)	$	22.46		(568,464	)	$	16.49
Forfeited or expired		(41,413	)	$	32.32		(20,818	)	$	22.66		(153,144	)	$	32.51

Outstanding — end of period		255,649		$	21.74		420,712		$	21.97		1,793,214		$	22.38

Exercisable at end of period		255,649		$	21.74		420,712		$	21.97		1,793,214		$	22.38

Summary of Information with Respect to Options Outstanding and Exercisable

The following table summarizes information with respect to options outstanding and exercisable under the Plans at December 31, 2012:


	Options Outstanding and Exercisable
	Number of Shares		Weighted Average Exercise Price		Weighted Average Remaining Contractual Life (In Years)		Aggregate Intrinsic Value (In Thousands)
$13.54 – $18.38		109,614	$	15.42		1.87	$	1,135
$20.07 – $29.93		146,035	$	26.48		1.37		128

		255,649					$	1,263

Effect of Recording Stock-Based Compensation

The following table reflects the effect of recording stock-based compensation for the years 2012, 2011 and 2010:


	Years Ended December 31,
	2012			2011			2010
Stock-based compensation expense by type of award:
Restricted stock	$	11,836		$	10,126		$	10,026
Employee stock purchase plan		1,195			1,099			578

Total stock-based compensation		13,031			11,225			10,604
Tax effect on stock-based compensation		(1,862	)		(5,019	)		(1,253	)

Net effect on net income	$	11,169		$	6,206		$	9,351

Effect on net earnings per share:
Basic	$	0.21		$	0.12		$	0.19

Diluted	$	0.21		$	0.12		$	0.18

Pre-Tax Effect Within Consolidated Statements of Operations of Recording Stock-Based Compensation

The pre-tax effect within the consolidated statements of operations and comprehensive income of recording stock-based compensation for the years 2012, 2011 and 2010 was as follows:


	Years Ended December 31,
	2012		2011		2010
Cost of sales	$	1,867	$	1,511	$	1,452
Research and development expense		2,278		2,197		2,391
Selling, general and administrative expense		8,886		7,517		6,761

Total pre-tax stock-based compensation expense	$	13,031	$	11,225	$	10,604

Fair Value of Employees' Purchase Rights Estimated using Black-Scholes Option-Pricing Model

The fair value of the employees’ purchase rights was estimated using the Black-Scholes option-pricing model with the following weighted average assumptions:


	Years Ended December 31,
	2012			2011			2010
Employee stock purchase rights:
Expected life (years)		0.5			0.5			0.5
Risk-free interest rate		0.1	%		0.2	%		0.2	%
Expected volatility		32.2	%		31.9	%		48.7	%
Expected annual dividends per share	$	0.62		$	0.60		$	—

- Definition

Tabular disclosure of the allocation of equity-based compensation costs to a given line item on the balance sheet and income statement for the period. This may include the reporting line for the costs and the amount capitalized and expensed.

+ References + Details

Net Income Per Share (Tables)

12 Months Ended

Dec. 31, 2012

Reconciliation of Basic and Diluted Net Income Per Share

The following is a reconciliation of basic to diluted net income per share:


	Years Ended December 31,
	2012		2011		2010
Numerator:
Income from continuing operations	$	48,029	$	129,731	$	132,919
Income from discontinued operations, net of tax		—		—		9,668

Net income	$	48,029	$	129,731	$	142,587

Denominator:
Shares used in net income per common share — basic		52,686,000		52,169,000		50,077,000
Effect of dilutive securities:
Stock options, restricted stock and employee stock purchase plan		548,000		678,000		850,000

Shares used in net income per common share — diluted		53,234,000		52,847,000		50,927,000

Basic income per common share:
Continuing operations	$	0.91	$	2.49	$	2.66
Discontinued operations		—		—		0.19

Net income	$	0.91	$	2.49	$	2.85

Diluted income per common share:
Continuing operations	$	0.90	$	2.45	$	2.61
Discontinued operations		—		—		0.19

Net income	$	0.90	$	2.45	$	2.80

Business Segment, Geographic Area, Product and Significant Customer Information (Tables)

12 Months Ended

Dec. 31, 2012

Net Revenues by Reportable Segment

The following is net revenues by reportable segment:


	Years Ended December 31,
	2012			2011			2010
Advanced Manufacturing Capital Equipment	$	479,751		$	647,908		$	712,737
Analytical Solutions Group		62,765			61,303			52,888
Europe Region Sales & Service(1)		51,440			75,253			70,153
Asia Region Sales & Service(1)		229,731			305,448			274,912
Corporate, Eliminations and Other		(180,179	)		(267,395	)		(257,576	)

	$	643,508		$	822,517		$	853,114

(1)

Schedule of Gross Profit (Loss) by Reportable Segment

The following is gross profit by reportable segment:


	Years Ended December 31,
	2012		2011		2010
Advanced Manufacturing Capital Equipment	$	171,308	$	263,863	$	294,502
Analytical Solutions Group		32,741		31,800		25,830
Europe Region Sales & Service(1)		15,156		21,323		19,587
Asia Region Sales & Service(1)		36,962		45,267		48,952
Corporate, Eliminations and Other		13,312		12,735		(10,233	)

	$	269,479	$	374,988	$	378,638

(1)

Schedule of Capital Expenditures, Depreciation and Amortization Expense and Segment Assets by Reportable Segment

The following is capital expenditures by reportable segment for the years ended December 31, 2012, 2011 and 2010:


	Product Groups				Foreign Sales & Service Operations
	Advanced Manufacturing Capital Equipment		Analytical Solutions Group		Europe		Asia		Corporate, Eliminations and Other		Total
December 31, 2012:
Capital expenditures	$	11,817	$	1,228	$	132	$	886	$	3,642	$	17,705

December 30, 2011:
Capital expenditures	$	11,947	$	868	$	362	$	1,552	$	838	$	15,567

December 30, 2010:
Capital expenditures	$	11,148	$	1,287	$	374	$	1,189	$	1,821	$	15,819

The following is depreciation and amortization expense by reportable segment for the years ended December 31, 2012, 2011 and 2010:


	Product Groups				Foreign Sales & Service Operations
	Advanced Manufacturing Capital Equipment		Analytical Solutions Group		Europe		Asia		Corporate, Eliminations and Other		Total
December 31, 2012:
Depreciation and amortization	$	9,594	$	1,176	$	326	$	1,711	$	1,635	$	14,442

December 30, 2011:
Depreciation and amortization	$	8,143	$	1,470	$	366	$	1,539	$	1,462	$	12,980

December 30, 2010:
Depreciation and amortization	$	7,872	$	1,432	$	279	$	1,473	$	2,767	$	13,823

Total income tax expense is impracticable to present by reportable segment because the necessary information is not available.

The following is segment assets by reportable segment:


	Product Groups				Foreign Sales & Service Operations
	Advanced Manufacturing Capital Equipment		Analytical Solutions Group		Europe		Asia		Corporate, Eliminations and Other			Total
December 31, 2012:
Segment assets:
Accounts receivable	$	9,644	$	5,889	$	5,813	$	32,088	$	28,626		$	82,060
Inventory		108,397		3,841		3,691		29,534		(10,824	)		134,639

Total segment assets	$	118,041	$	9,730	$	9,504	$	61,622	$	17,802		$	216,699

Reconciliation of Segment Assets to Consolidated Total Assets

A reconciliation of segment assets to consolidated total assets is as follows:


	Years Ended December 31,
	2012		2011
Total segment assets	$	216,699	$	274,526
Cash and cash equivalents and investments		627,399		573,392
Other current assets		36,242		44,856
Property, plant and equipment, net		80,516		72,487
Goodwill and intangible assets, net		162,294		141,127
Other assets		11,692		12,266

Consolidated total assets	$	1,134,842	$	1,118,654

Company's Operations in Different Geographic Regions

Transfers between geographic areas are at negotiated transfer prices and have been eliminated from consolidated net revenues.


	Years Ended December 31,
	2012		2011		2010
Net revenues:
United States	$	326,894	$	391,122	$	484,139
Japan		81,883		106,003		118,537
Europe		85,362		115,362		96,545
Asia (excluding Japan)		149,369		210,030		153,893

	$	643,508	$	822,517	$	853,114


	Years Ended December 31,
	2012		2011
Long-lived assets:(1)
United States	$	62,203	$	56,760
Japan		2,562		3,908
Europe		5,844		5,437
Asia (excluding Japan)		12,102		8,374

	$	82,711	$	74,479

(1)	Long-lived assets include property, plant and equipment, net and certain other assets.

Worldwide Net Revenue for Each Group of Products

Worldwide net revenue for each group of products is as follows:


	Years Ended December 31,
	2012		2011		2010
Instruments and Control Products	$	258,521	$	348,735	$	373,909
Power and Reactive Gas Products		251,669		327,151		343,827
Vacuum Products		66,418		81,782		78,819
Analytical Solutions Group Products		66,900		64,849		56,559

	$	643,508	$	822,517	$	853,114

Customers With Net Revenues Greater Than 10% of Total Net Revenues

The Company had two customers with net revenues greater than 10% of total net revenues in the periods shown as follows:


	Years Ended December 31,
	2012			2011			2010
Customer A		14.50	%		13.56	%		15.76	%
Customer B		10.12	%		6.52	%		9.00	%

- Definition

Tabular disclosure of the profit or loss and total assets for each reportable segment. An entity discloses certain information on each reportable segment if the amounts (a) are included in the measure of segment profit or loss reviewed by the chief operating decision maker or (b) are otherwise regularly provided to the chief operating decision maker, even if not included in that measure of segment profit or loss.

+ References + Details

Commitments and Contingencies (Tables)

12 Months Ended

Dec. 31, 2012

Minimum Lease Payments Under Operating Leases

Minimum lease payments under operating leases are as follows:


	Operating Leases
Year ending December 31,
2013	$	7,561
2014		5,749
2015		3,973
2016		2,974
2017		2,952
Thereafter		3,252

Total minimum lease payments	$	26,461

Supplemental Financial Data

MKS Instruments, Inc.

Supplemental Financial Data


	Quarter Ended
	March 31		June 30		Sept. 30		Dec. 31
	(Table in thousands, except per share data) (Unaudited)
2012
Statement of Operations Data
Net sales	$	190,868	$	177,397	$	141,447	$	133,796
Gross profit		83,791		76,516		56,571		52,601
Income from operations		33,369		27,847		6,392		6,615
Net income	$	22,768	$	18,572	$	2,580	$	4,109
Net income per share:
Basic	$	0.43	$	0.35	$	0.05	$	0.08
Diluted	$	0.43	$	0.35	$	0.05		0.08
Cash dividends paid per common share	$	0.15	$	0.15	$	0.16	$	0.16
2011
Statement of Operations Data
Net sales	$	231,851	$	224,487	$	194,508	$	171,671
Gross profit		106,361		104,988		87,678		75,961
Income from operations		56,508		57,305		41,112		30,000
Net income	$	38,043	$	38,601	$	30,373	$	22,714
Net income per share:
Basic	$	0.74	$	0.74	$	0.58	$	0.43
Diluted	$	0.73	$	0.73	$	0.57	$	0.43
Cash dividends paid per common share	$	0.15	$	0.15	$	0.15	$	0.15

Business Description - Additional Information (Detail)	12 Months Ended
Business Description - Additional Information (Detail)	Dec. 31, 2012 Product
Number of product groups	4

Summary of Significant Accounting Policies - Additional Information (Detail) $ in Thousands	12 Months Ended
	Dec. 31, 2012 USD ($) Customer	Dec. 31, 2011 USD ($)	Dec. 31, 2010 USD ($)
Schedule Of Significant Accounting Policies [Line Items]
Minimum period of company's research and development projects	3 months
Maximum period of company's research and development projects	30 months
Maximum maturity period of liquid investments	3 months
Sales to semiconductor equipment and device manufactures as % of net sales	62.00%	61.00%	64.00%
Number of customers comprising of Net sales \| Customer	1
Concentration risk, percentage	10.00%
Amortization period of leasehold improvements	Shorter of the lease term or the estimated useful life of the leased asset
Increase in valuation allowance on state tax credit carryforwards	$ 1,022	$ 1,208
Increase in valuation allowance on state tax credit carryforward, Descriptions	During 2012, the Company increased its valuation allowance by $1,022 primarily related to an increase in state tax credit carryforwards as management determined it is more likely than not that the deferred tax assets related to these attributes will not be realized. As a result, the valuation allowance is $27,497 at December 31, 2012.	During 2011, the Company increased its valuation allowance by $1,208 primarily related to capital losses incurred from its foreign affiliates as management determined it is more likely than not that the deferred tax assets related to these attributes will not be realized. As a result, the valuation allowance was $26,475 at December 31, 2011.
Valuation allowance	$ 27,497	$ 26,475	$ 25,267
Maximum percentage of recognition of tax benefits from uncertain tax positions	50.00%
Selling general and administrative expense [Member]
Schedule Of Significant Accounting Policies [Line Items]
Net foreign exchange gains and losses from re-measurement	$ 301	$ 126	$ 728
One customer [Member]
Schedule Of Significant Accounting Policies [Line Items]
Sales revenue goods and service net percentage	14.00%	14.00%	16.00%
Another customer [Member]
Schedule Of Significant Accounting Policies [Line Items]
Sales revenue goods and service net percentage	10.00%	7.00%	9.00%
Minimum [Member]
Schedule Of Significant Accounting Policies [Line Items]
Intangible assets amortized period	2 years
Minimum [Member] \| Building [Member]
Schedule Of Significant Accounting Policies [Line Items]
Estimated useful lives	20 years
Minimum [Member] \| Machinery and Equipment [Member]
Schedule Of Significant Accounting Policies [Line Items]
Estimated useful lives	3 years
Minimum [Member] \| Furniture and Fixtures [Member]
Schedule Of Significant Accounting Policies [Line Items]
Estimated useful lives	3 years
Minimum [Member] \| Office Equipment [Member]
Schedule Of Significant Accounting Policies [Line Items]
Estimated useful lives	3 years
Maximum [Member]
Schedule Of Significant Accounting Policies [Line Items]
Intangible assets amortized period	10 years
Maximum [Member] \| Building [Member]
Schedule Of Significant Accounting Policies [Line Items]
Estimated useful lives	31 years 6 months
Maximum [Member] \| Machinery and Equipment [Member]
Schedule Of Significant Accounting Policies [Line Items]
Estimated useful lives	7 years
Maximum [Member] \| Furniture and Fixtures [Member]
Schedule Of Significant Accounting Policies [Line Items]
Estimated useful lives	7 years
Maximum [Member] \| Office Equipment [Member]
Schedule Of Significant Accounting Policies [Line Items]
Estimated useful lives	7 years

Investments - Schedule of Fair Value of Available for Sale of Investments (Detail) - USD ($) $ in Thousands	Dec. 31, 2012	Dec. 31, 2011
Schedule Of Available For Sale And Trading Securities [Line Items]
Fair value of short-term available-for-sale investments	$ 326,862	$ 251,968
Fair value of short-term investments	327,653	252,603
Fair value of long-term available-for-sale investments, U.S. agency obligations	12,158	7,873
Time deposits [Member]
Schedule Of Available For Sale And Trading Securities [Line Items]
Fair value of short-term available-for-sale investments	52	37
Bankers acceptance drafts [Member]
Schedule Of Available For Sale And Trading Securities [Line Items]
Fair value of short-term available-for-sale investments	242	962
U.S. treasury obligations [Member]
Schedule Of Available For Sale And Trading Securities [Line Items]
Fair value of short-term available-for-sale investments, U.S. agency obligations	13,054	29,404
U.S. agency obligations [Member]
Schedule Of Available For Sale And Trading Securities [Line Items]
Fair value of short-term available-for-sale investments, U.S. agency obligations	313,514	221,565
Fair value of long-term available-for-sale investments, U.S. agency obligations	12,158	7,873
Mutual funds [Member]
Schedule Of Available For Sale And Trading Securities [Line Items]
Fair value of short-term investments, mutual funds	$ 791	$ 635

Investments - Gross Unrealized Gains and (Losses) Aggregated by Investment Category Short-Term and Long-Term Securities (Detail) - USD ($) $ in Thousands	Dec. 31, 2012	Dec. 31, 2011
Schedule of Available-for-sale Securities [Line Items]
Short-term investments, Cost	$ 326,601	$ 251,908
Short-term investments, Gross Unrealized Gains	267	67
Short-term investments, Gross Unrealized (Losses)	(6)	(7)
Short-term investments, Estimated Fair Value	326,862	251,968
Long-term investments, Estimated Fair Value	12,158	7,873
U.S. agency obligations [Member]
Schedule of Available-for-sale Securities [Line Items]
Short-term investments, Cost	313,262	221,516
Short-term investments, Gross Unrealized Gains	258	56
Short-term investments, Gross Unrealized (Losses)	(6)	(7)
Short-term investments, Estimated Fair Value	313,514	221,565
Long-term investments, Cost	12,156	7,876
Long-term investments, Gross Unrealized Gains	2
Long-term investments, Gross Unrealized (Losses)		(3)
Long-term investments, Estimated Fair Value	12,158	7,873
Time deposits [Member]
Schedule of Available-for-sale Securities [Line Items]
Short-term investments, Cost	52	37
Short-term investments, Gross Unrealized Gains
Short-term investments, Gross Unrealized (Losses)
Short-term investments, Estimated Fair Value	52	37
Bankers acceptance drafts [Member]
Schedule of Available-for-sale Securities [Line Items]
Short-term investments, Cost	242	962
Short-term investments, Gross Unrealized Gains
Short-term investments, Gross Unrealized (Losses)
Short-term investments, Estimated Fair Value	242	962
U.S. treasury obligations [Member]
Schedule of Available-for-sale Securities [Line Items]
Short-term investments, Cost	13,045	29,393
Short-term investments, Gross Unrealized Gains	9	11
Short-term investments, Gross Unrealized (Losses)
Short-term investments, Estimated Fair Value	$ 13,054	$ 29,404

Fair Value Measurements - Schedule of Fair Value of Assets and Liabilities Measured on Recurring Basis (Detail) - USD ($) $ in Thousands	Dec. 31, 2012	Dec. 31, 2011
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets Derivatives - currency forward contracts	$ 961	$ 531
Forward exchange contracts	1,310	1,054
Long-term investments	12,158	7,873
Fair Value, Measurements, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash and cash equivalents	51,307	137,976
Assets Derivatives - currency forward contracts	961	531
Total assets	392,027	398,946
Forward exchange contracts	1,310	1,054
Short-term investments	327,601	252,566
Other current assets	961	531
Total current assets	379,869	391,073
Long-term investments	12,158	7,873
Other current liabilities	1,310	1,054
Fair Value, Measurements, Recurring [Member] \| Money market funds [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash and cash equivalents	51,291	137,976
Fair Value, Measurements, Recurring [Member] \| Bankers acceptance drafts [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash and cash equivalents	16
Available-for-sale securities	242	962
Fair Value, Measurements, Recurring [Member] \| Mutual funds [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Mutual funds	791	635
Fair Value, Measurements, Recurring [Member] \| U.S. treasury obligations [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	13,054	29,404
Fair Value, Measurements, Recurring [Member] \| U.S. agency obligations [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	325,672	229,438
Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] \| Fair Value, Measurements, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash and cash equivalents	51,291	137,976
Assets Derivatives - currency forward contracts
Total assets	347,747	286,157
Forward exchange contracts
Short-term investments	284,298	140,308
Other current assets
Total current assets	335,589	278,284
Long-term investments	12,158	7,873
Other current liabilities
Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] \| Fair Value, Measurements, Recurring [Member] \| Money market funds [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash and cash equivalents	51,291	137,976
Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] \| Fair Value, Measurements, Recurring [Member] \| Mutual funds [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Mutual funds	791	635
Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] \| Fair Value, Measurements, Recurring [Member] \| U.S. agency obligations [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	295,665	147,546
Significant Other Observable Inputs (Level 2) [Member] \| Fair Value, Measurements, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash and cash equivalents	16
Assets Derivatives - currency forward contracts	961	531
Total assets	44,280	112,789
Forward exchange contracts	1,310	1,054
Short-term investments	43,303	112,258
Other current assets	961	531
Total current assets	44,280	112,789
Long-term investments
Other current liabilities	1,310	1,054
Significant Other Observable Inputs (Level 2) [Member] \| Fair Value, Measurements, Recurring [Member] \| Bankers acceptance drafts [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash and cash equivalents	16
Available-for-sale securities	242	962
Significant Other Observable Inputs (Level 2) [Member] \| Fair Value, Measurements, Recurring [Member] \| U.S. treasury obligations [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	13,054	29,404
Significant Other Observable Inputs (Level 2) [Member] \| Fair Value, Measurements, Recurring [Member] \| U.S. agency obligations [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	30,007	81,892
Significant Unobservable Inputs (Level 3) [Member] \| Fair Value, Measurements, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash and cash equivalents
Assets Derivatives - currency forward contracts
Total assets
Forward exchange contracts
Short-term investments
Other current assets
Total current assets
Long-term investments
Other current liabilities
Significant Unobservable Inputs (Level 3) [Member] \| Fair Value, Measurements, Recurring [Member] \| Money market funds [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash and cash equivalents
Significant Unobservable Inputs (Level 3) [Member] \| Fair Value, Measurements, Recurring [Member] \| Bankers acceptance drafts [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash and cash equivalents
Available-for-sale securities
Significant Unobservable Inputs (Level 3) [Member] \| Fair Value, Measurements, Recurring [Member] \| Mutual funds [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Mutual funds
Significant Unobservable Inputs (Level 3) [Member] \| Fair Value, Measurements, Recurring [Member] \| U.S. treasury obligations [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities
Significant Unobservable Inputs (Level 3) [Member] \| Fair Value, Measurements, Recurring [Member] \| U.S. agency obligations [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities

Fair Value Measurements - Schedule of Fair Value of Assets and Liabilities Measured on Recurring Basis (Parenthetical) (Detail) - USD ($) $ in Thousands	Dec. 31, 2012	Dec. 31, 2011
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Non-negotiable time deposits	$ 51,138	$ 28,905
Cash included in cash and cash equivalent amount	185,143	146,035
Short-term investments	326,862	251,968
Time deposits [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Short-term investments	$ 52	$ 37

- Definition

Amount of investment in debt and equity securities categorized neither as trading securities nor held-to-maturity securities and intended be sold or mature one year or operating cycle, if longer.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
-SubTopic 10
-Section 25
-Paragraph 1
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=7534914&loc=d3e22054-111558

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
-SubTopic 10
-Section 45
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=6871852&loc=d3e26626-111562

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 115
-Paragraph 12
-Subparagraph b
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 115
-Paragraph 13, 17
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 5: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 133
-Paragraph 22
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 6: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name FASB Staff Position (FSP)
-Number FAS115-1/124-1
-Paragraph 15C
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 7: http://www.xbrl.org/2003/role/presentationRef
-Publisher AICPA
-Name Accounting Research Bulletin (ARB)
-Number 43
-Section A
-Paragraph 4, 5
-Chapter 3
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 8: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 115
-Paragraph 16
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 9: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name FASB Staff Position (FSP)
-Number FAS115-1/124-1
-Paragraph 15D
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

+ Details

Fair Value Measurements - Additional Information (Detail) $ in Thousands	Dec. 31, 2012 USD ($)
Government Term Loan Guarantee Program [Member]
Fair Value Inputs Assets Liabilities Quantitative Information [Line Items]
Corporate obligations	$ 0

Derivatives - Additional Information (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011
Maximum period for hedging a portion of forecasted foreign currency denominated intercompany sales of inventory	18 months
Gross notional values of outstanding forward foreign exchange contracts	$ 41,448	$ 36,119

Derivatives - Summary of Primary Net Hedging Positions and Corresponding Fair Values (Detail) - USD ($) $ in Thousands	Dec. 31, 2012	Dec. 31, 2011
Derivative [Line Items]
Currency Hedged (Buy/Sell), Gross Notional Value, Net	$ 41,448	$ 36,119
Currency Hedged (Buy/Sell), Fair Value, Asset/(Liability), Net	(349)	(523)
U.S. Dollar/Japanese Yen [Member]
Derivative [Line Items]
Currency Hedged (Buy/Sell), Gross Notional Value, Net	13,992	18,676
Currency Hedged (Buy/Sell), Fair Value, Asset/(Liability), Net	961	(961)
U.S. Dollar/South Korean Won [Member]
Derivative [Line Items]
Currency Hedged (Buy/Sell), Gross Notional Value, Net	19,374	10,799
Currency Hedged (Buy/Sell), Fair Value, Asset/(Liability), Net	(1,180)	60
U.S. Dollar/Euro [Member]
Derivative [Line Items]
Currency Hedged (Buy/Sell), Gross Notional Value, Net	4,217	3,869
Currency Hedged (Buy/Sell), Fair Value, Asset/(Liability), Net	(57)	288
U.S. Dollar/U.K. Pound Sterling [Member]
Derivative [Line Items]
Currency Hedged (Buy/Sell), Gross Notional Value, Net	3,865	2,775
Currency Hedged (Buy/Sell), Fair Value, Asset/(Liability), Net	$ (73)	$ 90

Derivatives - Summary of Fair Value Amounts of Company's Derivative Instruments (Detail) - USD ($) $ in Thousands	Dec. 31, 2012	Dec. 31, 2011
Derivatives, Fair Value [Line Items]
Forward exchange contracts, Assets	$ 961	$ 531
Forward exchange contracts, Liabilities	(1,310)	(1,054)
Total net derivative (liability) designated as hedging instruments	(349)	(523)
Derivatives Designated as Hedging Instruments [Member]
Derivatives, Fair Value [Line Items]
Forward exchange contracts, Assets	961	531
Forward exchange contracts, Liabilities	(1,310)	(1,054)
Total net derivative (liability) designated as hedging instruments	$ (349)	$ (523)

Derivatives - Summary of Fair Value Amounts of Company's Derivative Instruments (Parenthetical) (Detail) - USD ($) $ in Thousands	Dec. 31, 2012	Dec. 31, 2011
Derivatives, Fair Value [Line Items]
Derivative asset classified in other current assets	$ 961	$ 531
Derivative liability classified in other current liabilities	$ 1,310	$ 1,054

Derivatives - Summary of Gain (Losses) on Derivatives Designated as Hedging Instruments (Detail) - Forward Contracts [Member] - Cash Flow Hedging [Member] - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Derivative Instruments, Gain (Loss) [Line Items]
Net gain (loss) recognized in OCI	$ 936	$ 4,311	$ (3,346)
Net (loss) reclassified from accumulated OCI into income	$ (930)	$ (4,021)	$ (957)

Derivatives - Summary of (Losses) on Derivatives Not Designated as Hedging Instruments (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Not Designated as Hedging Instruments [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Net (loss) recognized in income	$ (1,606)	$ 0	$ 0

Inventories - Summary of Inventories (Detail) - USD ($) $ in Thousands	Dec. 31, 2012	Dec. 31, 2011
Inventories Net [Line Items]
Raw material	$ 76,610	$ 78,501
Work-in-process	19,708	21,298
Finished goods	38,321	53,833
Inventories	$ 134,639	$ 153,632

Inventories - Additional Information (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Inventories Net [Line Items]
Inventory related excess and obsolete charges	$ 15,028	$ 14,857	$ 13,230

Property, Plant and Equipment - Summary of Property, Plant and Equipment (Detail) - USD ($) $ in Thousands	Dec. 31, 2012	Dec. 31, 2011
Property, Plant and Equipment [Line Items]
Land	$ 9,188	$ 8,119
Buildings	68,831	64,962
Machinery and equipment	115,032	107,304
Furniture and fixtures, office equipment and software	51,669	48,516
Leasehold improvements	18,003	18,617
Construction in progress	9,227	7,075
Property, plant and equipment, gross	271,950	254,593
Less: accumulated depreciation and amortization	191,434	182,106
Property, plant and equipment, net	$ 80,516	$ 72,487

Property, Plant and Equipment - Additional Information (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Depreciation and Amortization Expenses For Property Plant And Equipment [Line Items]
Depreciation and amortization of property, plant and equipment	$ 14,442	$ 12,980	$ 13,823
Reclassified amount of depreciation of property, plant and equipment			85
Property Plant And Equipment [Member]
Depreciation and Amortization Expenses For Property Plant And Equipment [Line Items]
Depreciation and amortization of property, plant and equipment	$ 13,406	$ 11,965	$ 12,298

- Definition

The current period expense charged against earnings on long-lived, physical assets not used in production, and which are not intended for resale, to allocate or recognize the cost of such assets over their useful lives; or to record the reduction in book value of an intangible asset over the benefit period of such asset; or to reflect consumption during the period of an asset that is not used in production.

+ References + Details

Acquisition - Additional Information (Detail) - USD ($) $ in Thousands	1 Months Ended	3 Months Ended	12 Months Ended
	Aug. 29, 2012	Dec. 31, 2012	Dec. 31, 2012
Business Acquisition [Line Items]
Acquisition date of Plasmart	Aug. 29, 2012
Aggregate purchase price, net of cash acquired			$ 22,607
Acquisition related costs	$ 1,258
Working capital adjustments		$ 1,778
Step-up inventory	303
Plasmart, Inc. [Member]
Business Acquisition [Line Items]
Aggregate purchase price, net of cash acquired	$ 22,607

Acquisition - Summary of Estimated Fair Value of Assets Acquired and Liabilities Assumed (Detail) $ in Thousands	Dec. 31, 2012 USD ($)
Business Acquisition [Line Items]
Current assets	$ 5,536
Property, plant and equipment	3,565
Other assets	554
Intangible assets	10,745
Goodwill	9,989
Total assets acquired	30,389
Debt (Note 15)	4,561
Deferred taxes and other liabilities	3,128
Total liabilities assumed	7,689
Total purchase price	22,700
Cash acquired	(93)
Total purchase price, net of cash acquired	$ 22,607

Acquisition - Allocation of Acquired Intangible Assets and Related Estimates of Useful Lives (Detail) $ in Thousands	12 Months Ended
	Dec. 31, 2012 USD ($)
Acquired Finite-Lived Intangible Assets [Line Items]
Acquired intangible assets	$ 10,745
Current developed technology [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Acquired intangible assets	5,029
Tradenames [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Acquired intangible assets	$ 335
Estimated useful life of finite lived intangible assets	7 years
Customer relationships [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Acquired intangible assets	$ 5,381
Estimated useful life of finite lived intangible assets	10 years
Minimum [Member] \| Current developed technology [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Estimated useful life of finite lived intangible assets	7 years 6 months
Maximum [Member] \| Current developed technology [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Estimated useful life of finite lived intangible assets	9 years 6 months

Goodwill and Intangible Assets - Goodwill (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011
Goodwill [Line Items]
Goodwill gross carrying amount, Beginning balance	$ 279,498	$ 279,434
Acquired goodwill, gross	9,989	64
Foreign currency translation, gross	660
Goodwill gross carrying amount, Ending balance	290,147	279,498
Accumulated Impairment Loss, Beginning balance	(139,414)	(139,414)
Acquired goodwill, impairment loss
Foreign currency translation
Accumulated Impairment Loss, Ending balance	(139,414)	(139,414)
Goodwill, net, Beginning balance	140,084	140,020
Acquired goodwill, net	9,989	64
Foreign currency translation, net	660
Goodwill, net, Ending balance	$ 150,733	$ 140,084

Goodwill and Intangible Assets - Goodwill (Parenthetical) (Detail) - USD ($) $ in Thousands	1 Months Ended	12 Months Ended
	Aug. 29, 2012	Dec. 31, 2012	Sep. 30, 2011
Goodwill [Line Items]
Acquisition purchase price, net of cash acquired		$ 22,607
Goodwill in connection with acquisition		9,989
Acquisition purchase price		$ 22,700
Plasmart, Inc. [Member]
Goodwill [Line Items]
Acquisition purchase price, net of cash acquired	$ 22,607
Goodwill in connection with acquisition	$ 9,989
GE Osmonics [Member]
Goodwill [Line Items]
Goodwill in connection with acquisition			$ 64
Acquisition purchase price			$ 458

Goodwill and Intangible Assets - Goodwill Associated with Reportable Segments (Detail) - USD ($) $ in Thousands	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Segment Reporting Information [Line Items]
Reportable segment, goodwill	$ 150,733	$ 140,084	$ 140,020
Advance Manufacturing Capital Equipment [Member]
Segment Reporting Information [Line Items]
Reportable segment, goodwill	142,065	125,026
Analytical Solutions Group [Member]
Segment Reporting Information [Line Items]
Reportable segment, goodwill	8,668	15,058
Europe Region Sales & Service [Member]
Segment Reporting Information [Line Items]
Reportable segment, goodwill
Asia Region Sales & Service [Member]
Segment Reporting Information [Line Items]
Reportable segment, goodwill

- Definition

Carrying amount as of the balance sheet date, which is the cumulative amount paid and (if applicable) the fair value of any noncontrolling interest in the acquiree, adjusted for any amortization recognized prior to the adoption of any changes in generally accepted accounting principles (as applicable) and for any impairment charges, in excess of the fair value of net assets acquired in one or more business combination transactions.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 20
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=14024403&loc=d3e13816-109267

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 20
-Section 45
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6388280&loc=d3e13770-109266

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 142
-Paragraph 45
-Subparagraph e
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 142
-Paragraph 43
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 5: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 141R
-Paragraph 72
-Subparagraph d
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 6: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 142
-Paragraph 45
-Subparagraph e
-Clause 1
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 7: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 141R
-Paragraph 68
-Subparagraph l
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 8: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 141R
-Paragraph 34
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

+ Details

Goodwill and Intangible Assets - Intangible Assets (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011
Finite-Lived Intangible Assets [Line Items]
Intangible assets, Gross	$ 121,693	$ 110,722
Accumulated Amortization	(110,716)	(109,679)
Foreign Currency Translation	584
Intangible assets, net	11,561	1,043
Completed technology [Member]
Finite-Lived Intangible Assets [Line Items]
Intangible assets, Gross	82,084	76,829
Accumulated Amortization	(77,243)	(76,829)
Foreign Currency Translation	254
Intangible assets, net	5,095
Customer relationships [Member]
Finite-Lived Intangible Assets [Line Items]
Intangible assets, Gross	14,571	9,190
Accumulated Amortization	(8,886)	(8,393)
Foreign Currency Translation	312
Intangible assets, net	5,997	797
Patents, trademarks, trade names and other [Member]
Finite-Lived Intangible Assets [Line Items]
Intangible assets, Gross	25,038	24,703
Accumulated Amortization	(24,587)	(24,457)
Foreign Currency Translation	18
Intangible assets, net	$ 469	$ 246

Goodwill and Intangible Assets - Intangible Assets (Parenthetical) (Detail) - USD ($) $ in Thousands	1 Months Ended	3 Months Ended	12 Months Ended
	Aug. 29, 2012	Mar. 31, 2012	Dec. 31, 2012	Sep. 30, 2011
Finite-Lived Intangible Assets [Line Items]
Acquired intangible assets re-classified from other assets to intangible assets		$ 226
Acquisition purchase price, net of cash acquired			$ 22,607
Acquisition purchase price, net of cash acquired			$ 22,700
Plasmart, Inc. [Member]
Finite-Lived Intangible Assets [Line Items]
Acquisition purchase price, net of cash acquired	$ 22,607
Intangible asset in connection with acquisition	10,745
GE Osmonics [Member]
Finite-Lived Intangible Assets [Line Items]
Intangible asset in connection with acquisition				$ 315
Acquisition purchase price, net of cash acquired				458
Completed technology [Member] \| Plasmart, Inc. [Member]
Finite-Lived Intangible Assets [Line Items]
Intangible asset in connection with acquisition	5,029
Tradenames [Member] \| Plasmart, Inc. [Member]
Finite-Lived Intangible Assets [Line Items]
Intangible asset in connection with acquisition	335
Tradenames [Member] \| GE Osmonics [Member]
Finite-Lived Intangible Assets [Line Items]
Intangible asset in connection with acquisition				65
Customer relationships [Member] \| Plasmart, Inc. [Member]
Finite-Lived Intangible Assets [Line Items]
Intangible asset in connection with acquisition	$ 5,381
Customer relationships [Member] \| GE Osmonics [Member]
Finite-Lived Intangible Assets [Line Items]
Intangible asset in connection with acquisition				$ 250

Goodwill and Intangible Assets - Additional Information (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Goodwill And Intangible Assets [Line Items]
Aggregate amortization expense related to acquired intangibles	$ 1,036	$ 1,015	$ 1,283
Amortization expenses to discontinued operations			$ 242

Goodwill and Intangible Assets - Estimated Amortization Expense (Detail) $ in Thousands	Dec. 31, 2012 USD ($)
Aggregate Amortization Expense Acquired Intangible Assets [Line Items]
2013	$ 1,639
2014	1,261
2015	1,245
2016	1,244
2017	1,244
Thereafter	$ 4,928

Other Assets - Other Assets (Detail) - USD ($) $ in Thousands	Dec. 31, 2012	Dec. 31, 2011
Other Current Assets:
Income tax receivable	$ 12,768	$ 12,005
Prepaid income taxes	4,344	8,540
Other	10,936	13,693
Total other current assets	28,048	34,238
Other Assets:
Deferred tax assets, net	9,497	10,274
Other	2,195	1,992
Total other assets	$ 11,692	$ 12,266

- Definition

Amount after allocation of valuation allowances of noncurrent deferred tax asset attributable to deductible temporary differences and carryforwards. Noncurrent assets are expected to be realized or consumed after one year (or the normal operating cycle, if longer).

+ References + Details

- Definition

Carrying amount due within one year of the balance sheet date (or one operating cycle, if longer) from tax authorities as of the balance sheet date representing refunds of overpayments or recoveries based on agreed-upon resolutions of disputes.

+ References + Details

Other Liabilities - Other Liabilities (Detail) - USD ($) $ in Thousands	Dec. 31, 2012	Dec. 31, 2011
Other Current Liabilities:
Product warranties	$ 8,266	$ 8,315
Deferred revenue	9,280	11,553
Non-income taxes	3,514	8,319
Other	16,345	12,137
Total other current liabilities	37,405	40,324
Other Liabilities:
Long-term income tax payable	20,880	16,084
Accrued compensation	18,750	15,174
Other	3,745	953
Total other liabilities	$ 43,375	$ 32,211

Product Warranties - Product Warranty Activities (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011
Product Warranty [Line Items]
Beginning balance	$ 8,315	$ 9,865
Provisions for product warranties	4,514	5,766
Direct charges to warranty liability	(4,985)	(6,857)
Foreign currency translation	422	(459)
Ending balance	$ 8,266	$ 8,315

Debt - Additional Information (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011
Debt [Line Items]
Average interest rate on borrowings	5.19%
Line of credit facility expiration year	2014
Japan line of credit [Member]
Debt [Line Items]
Number of financial institutions for available lines of credit and borrowing arrangements	2
Aggregate borrowings expire and renewed	3 month intervals
Total available line of credit	$ 26,729
Debt instrument maximum interest rate	1.475%
Debt instrument minimum interest rate	0.63%
Total borrowings outstanding	$ 0	$ 1,932
Plasmart line of credit [Member]
Debt [Line Items]
Total available line of credit	1,401
Total borrowings outstanding	$ 0

Income Taxes - Reconciliation of Company's Effective Tax Rate to U.S. Federal Statutory Rate (Detail)	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Effective Income Tax Rate Reconciliation [Line Items]
U.S. Federal income tax statutory rate	35.00%	35.00%	35.00%
Federal tax credits		(0.70%)	(1.10%)
State income taxes, net of federal benefit	1.30%	1.10%	1.00%
Effect of foreign operations taxed at various rates	(2.60%)	(4.10%)	(2.40%)
Qualified production activity tax benefit	(0.50%)	(1.10%)	(0.80%)
Deferred tax asset valuation allowance	1.40%	0.60%	(0.10%)
Other	1.50%	(0.50%)	0.70%
Total	36.10%	30.30%	32.30%

Income Taxes - Components of Income From Continuing Operations Before Income Tax and Related Provision for Income Taxes (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Income from continuing operations before income taxes:
United States	$ 28,652	$ 108,474	$ 110,779
Foreign 11	46,484	77,578	85,645
Income from continuing operations before income taxes	75,136	186,052	196,424
Current taxes:
United States	10,431	25,824	27,789
State	783	2,602	3,323
Foreign	12,074	20,346	22,296
Current taxes, Total	23,288	48,772	53,408
Deferred taxes:
United States	2,019	7,795	10,021
State and Foreign	1,800	(246)	76
Deferred taxes, Total	3,819	7,549	10,097
Provision for income taxes	$ 27,107	$ 56,321	$ 63,505

Income Taxes - Significant Components of Deferred Tax Assets and Deferred Tax Liabilities (Detail) - USD ($) $ in Thousands	Dec. 31, 2012	Dec. 31, 2011
Deferred tax assets:
Loss carryforwards and credits	$ 29,032	$ 28,053
Inventory and warranty reserves	10,959	8,789
Accounts receivable and other accruals	2,647	6,875
Stock-based compensation	5,032	4,610
Executive supplemental retirement benefits	6,132	4,826
Other		1,245
Total deferred tax assets	53,802	54,398
Deferred tax liabilities:
Acquired intangible assets	(5,857)	(3,330)
Depreciation and amortization	(4,461)	(3,679)
Other	(1,145)	(22)
Total deferred tax liabilities	(11,463)	(7,031)
Valuation allowance	(27,497)	(26,475)
Net deferred tax assets	$ 14,842	$ 20,892

Income taxes - Additional Information (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009
Income Taxes [Line Items]
Gross Massachusetts tax research other tax credit carryforwards	$ 8,229
Tax credit expiration period	2027
Gross unrecognized tax benefits excluding interest and penalties	$ 40,674	$ 36,540	$ 22,028	$ 9,085
Net unrecognized tax benefit excluding interest and penalties that would impact effective tax rate	19,788
Accrued interest on unrecognized tax benefits	1,571	973	986
Increased valuation allowance	1,022	1,208
Net benefit to income tax expense, excluding interest and penalties, due to discrete reserve releases		2,148
Undistributed earnings in foreign subsidiaries	$ 421,734
Tax holiday resulted in income tax savings		$ 1,000	$ 2,700
Israeli Tax [Member]
Income Taxes [Line Items]
Income tax holiday tax rate	10.00%
American Taxpayer Relief Act of 2012 [Member]
Income Taxes [Line Items]
Reduction in effective income tax rate	3.00%
2013 [Member] \| Israeli Tax [Member]
Income Taxes [Line Items]
Income tax holiday tax rate	7.00%
2013 [Member]
Income Taxes [Line Items]
U.S. Federal capital loss carryforwards	$ 1,984
2015 [Member]
Income Taxes [Line Items]
U.S. Federal capital loss carryforwards	59,275
Minimum [Member]
Income Taxes [Line Items]
Unrecognized tax benefits related to various U.S.federal, state and foreign tax positions	2,545
Maximum [Member]
Income Taxes [Line Items]
Unrecognized tax benefits related to various U.S.federal, state and foreign tax positions	$ 3,145

Income Taxes - Reconciliation of Beginning and Ending Amount of Gross Unrecognized Tax Benefits (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Reconciliation Of Beginning And Ending Amount Of Unrecognized Tax Benefits [Line Items]
Balance at beginning of year	$ 36,540	$ 22,028	$ 9,085
Decreases for prior years		(3)	(6)
Increases for the current year	4,134	16,663	13,553
Reductions related to settlements with taxing authorities		(2,148)
Reductions related to expiration of statute of limitations			(604)
Balance at end of year	$ 40,674	$ 36,540	$ 22,028

Discontinued Operations - Additional Information (Detail) $ in Thousands	12 Months Ended
	Dec. 31, 2012 USD ($)	Dec. 31, 2011 USD ($)	Dec. 31, 2010 USD ($) Product
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Discontinued operation, number of product lines sold \| Product			2
Gain from disposal of discontinued operations before income taxes			$ 4,432
Ion [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Net proceeds from sale of discontinued operations			15,092
Gain from disposal of discontinued operations before income taxes			4,208
YDI [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Net proceeds from sale of discontinued operations			490
Gain from disposal of discontinued operations before income taxes			$ 224

Discontinued Operations - Net Revenues and Income from Discontinued Operations (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Net revenues			$ 11,974
Income from discontinued operations before income taxes			2,320
Gain from disposal of discontinued operations before income taxes			4,432
Income tax benefit			2,916
Income from discontinued operations			$ 9,668

- Definition

Overall income (loss) from a disposal group that is classified as a component of the entity, before income tax, reported as a separate component of income before extraordinary items. Includes the following (before income tax): income (loss) from operations during the phase-out period, gain (loss) on disposal, provision (or any reversals of earlier provisions) for loss on disposal, and adjustments of a prior period gain (loss) on disposal.

+ References + Details

- Definition

Tax effect allocated to a disposal group that is classified as a component of the entity reported as a separate component of income before extraordinary items. Includes the tax effects of the following: income (loss) from operations during the phase-out period, gain (loss) on disposal, provision (or any reversals of earlier provisions) for loss on disposal, and adjustments of a prior period gain (loss) on disposal.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 205
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (b),(c)
-URI http://asc.fasb.org/extlink&oid=6360339&loc=d3e1361-107760

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 50
-Paragraph 10
-URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32672-109319

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 20
-Section 45
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=18498875&loc=d3e38679-109324

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 205
-SubTopic 20
-Section 45
-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=6892542&loc=d3e957-107759

Reference 5: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 144
-Paragraph 47
-Subparagraph c
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 6: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 109
-Paragraph 46
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 7: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 144
-Paragraph 43
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

+ Details

- Definition

Amount of income (loss) from a disposal group, net of income tax before extraordinary items allocable to noncontrolling interests. Includes, net of tax, income (loss) from operations during the phase-out period, gain (loss) on disposal, provision (or any reversals of earlier provisions) for loss on disposal, and adjustments of a prior period gain (loss) on disposal.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 225
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-04.12)
-URI http://asc.fasb.org/extlink&oid=6879464&loc=d3e573970-122913

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 225
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03.14)
-URI http://asc.fasb.org/extlink&oid=6880815&loc=d3e20235-122688

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 205
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=6360339&loc=d3e1361-107760

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 205
-SubTopic 20
-Section 45
-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=6892542&loc=d3e957-107759

Reference 5: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 04
-Paragraph 13
-Article 7

Reference 6: http://www.xbrl.org/2003/role/presentationRef
-Publisher AICPA
-Name Accounting Research Bulletin (ARB)
-Number 51
-Paragraph 29
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 7: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 144
-Paragraph 43
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 8: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 144
-Paragraph 47
-Subparagraph c
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 9: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 03
-Paragraph 15
-Article 5

+ Details

Stockholders' Equity - Additional Information (Detail) - USD ($) $ / shares in Units, $ in Thousands		3 Months Ended				12 Months Ended
	Feb. 11, 2013	Dec. 31, 2012	Sep. 30, 2012	Jun. 30, 2012	Mar. 31, 2012	Dec. 31, 2012	Dec. 31, 2011
Stockholders Equity [Line Items]
Common Stock, value of shares authorized to repurchase						$ 200,000
Stock repurchase, shares						434,600	85,800
Value of shares repurchased						$ 11,501	$ 2,007
Average price of repurchased shares						$ 26.46	$ 23.40
Cash dividend to be paid		$ 0.16	$ 0.16	$ 0.15	$ 0.15
Dividend payment to common shareholders						$ 32,686
Subsequent Event [Member]
Stockholders Equity [Line Items]
Cash dividend to be paid	$ 0.16
Dividend declared date						Feb. 11, 2013
Dividend to be paid date						Mar. 15, 2013
Dividend declared record date						Mar. 01, 2013

Stock-Based Compensation - Additional Information (Detail) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Common Stock, shares issued	52,748,849,000	52,491,948,000
Vesting percentage per year of RSUs from date of grant	33.30%	33.30%
Weighted average remaining contractual life of options exercisable	1 year 7 months 6 days
Closing stock price per share	$ 25.78
Number of in-the-money options exercisable	151,239
Tax effect on stock-based compensation	$ 1,862	$ 5,019	$ 1,253
Capitalization of share based payment costs	$ 471	$ 471
Options granted	0	0	0
Total intrinsic value of options exercised	$ 1,228	$ 9,458	$ 3,518
Weighted average fair value per share of employee stock purchase rights, granted	$ 7.24	$ 5.87	$ 5.48
Total intrinsic value of options exercised and fair value of shares vested	$ 16,498	$ 27,199	$ 16,846
Employee stock option [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Cash received from employees as a result of employee stock option exercises	2,322	30,362
Tax effect on stock-based compensation	$ 299	$ 2,972
Employee stock purchase plan - Third Amended and Restated [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares authorized for issuance	1,950,000
Percentage of payroll deduction to compensation	Up to 10%
Percentage of Common Stock through payroll deductions	10.00%
Percentage of closing price of the Common Stock	85.00%
Common Stock, shares issued	141,975	137,410
Shares reserved for future issuance	350,748
Employee stock purchase plan - Third Amended and Restated [Member] \| Offer Terminate [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Percentage of closing price of the Common Stock	85.00%
Employee stock purchase plan - Third Amended and Restated [Member] \| Maximum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Amount of payroll deduction	$ 21,250
Common stock, exercise price	$ 22.40	$ 21.62
Employee stock purchase plan - Third Amended and Restated [Member] \| Minimum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Common stock, exercise price	$ 22.01	$ 18.26
Employee Stock Purchase Plan - Second Amended and Restated [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares authorized for issuance	400,000
Percentage of Common Stock through payroll deductions	10.00%
Percentage of closing price of the Common Stock	85.00%
Common Stock, shares issued	29,954	29,969
Shares reserved for future issuance	96,470
Employee Stock Purchase Plan - Second Amended and Restated [Member] \| Offer Terminate [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Percentage of closing price of the Common Stock	85.00%
Employee Stock Purchase Plan - Second Amended and Restated [Member] \| Maximum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Amount of payroll deduction	$ 21,250
Common stock, exercise price	$ 22.40	$ 21.62
Employee Stock Purchase Plan - Second Amended and Restated [Member] \| Minimum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Common stock, exercise price	$ 22.01	$ 18.26
Stock Incentive Plan 2004 [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares authorized for issuance	15,000,000
Shares available for future grant	11,394,493
Stock Incentive Plan prior to 2001 [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock options granted to employees under plans prior to 2001, vested after one year	20.00%
Stock options granted to employees under plans prior to 2001, vested per quarter thereafter	5.00%
Stock options expired	10 years
Director [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share based compensation arrangement by share based payment award vesting period description	Options granted to directors generally vested at the earliest of (1) one day prior to the next annual meeting, (2) 13 months from date of grant, or (3) the effective date of an acquisition.
Restricted stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized compensation cost	$ 11,238
Estimated weighted average amortization period	1 year 7 months 6 days
RSUs granted to Directors [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share based compensation arrangement by share based payment award vesting period description	Earliest of (1) one day prior to the next annual meeting, (2) 13 months from date of grant, or (3) the effective date of an acquisition.
Stock Incentive Plans 2001 and after [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Percentage of exercise price fair value option grant in period	100.00%
Stock options granted to employees under plans prior to 2001, vested after one year	25.00%
Stock options granted to employees under plans prior to 2001, vested per quarter thereafter	6.25%
Stock options expired	10 years
RSUs granted to employees [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share based compensation arrangement by share based payment award vesting period description	Employees who are at least 60 years old and have a combined years of age plus years of service (as defined) equal to 70 years or more, are expensed immediately.
Vesting period of restricted stock unit granted to employees		Three years from the date of grant

Stock-Based Compensation - Summary of Activity for RSUs (Detail) - $ / shares	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Weighted Average Grant Date Fair Value, Granted	$ 7.24	$ 5.87	$ 5.48
Restricted Stock Units (RSUs) [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Non-vested RSUs - beginning of period	1,115,005	1,327,306	1,581,883
Non-vested RSUs, Granted	426,583	397,492	555,995
Non-vested RSUs, Vested	(557,314)	(569,891)	(706,224)
Non-vested RSUs, Forfeited or expired	(42,071)	(39,902)	(104,348)
Non-vested RSUs - end of period	942,203	1,115,005	1,327,306
Weighted Average Grant Date Fair Value, Beginning of period	$ 21.50	$ 18.34	$ 19.77
Weighted Average Grant Date Fair Value, Granted	29.14	30.27	19.63
Weighted Average Grant Date Fair Value, Vested	19.01	20.42	20.65
Weighted Average Grant Date Fair Value, Forfeited or expired	22.36	18.36	18.32
Weighted Average Grant Date Fair Value, end of period	$ 26.58	$ 21.50	$ 18.34

Stock-Based Compensation - Summary of Activity for Options (Detail) - $ / shares	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Options, Outstanding - beginning of period	420,712	1,793,214	2,514,822
Options, Exercised	(123,650)	(1,351,684)	(568,464)
Options, Forfeited or expired	(41,413)	(20,818)	(153,144)
Options, Outstanding - end of period	255,649	420,712	1,793,214
Options, Exercisable at end of period	255,649	420,712	1,793,214
Options, Outstanding - beginning of period	$ 21.97	$ 22.38	$ 21.67
Options, Exercised	18.78	22.46	16.49
Options, Forfeited or expired	32.32	22.66	32.51
Options, Outstanding - end of period	21.74	21.97	22.38
Options, Exercisable at end of period	$ 21.74	$ 21.97	$ 22.38

Stock-Based Compensation - Summary of Information with Respect to Options Outstanding and Exercisable (Detail) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2012 USD ($) yr $ / shares shares
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Options Outstanding and Exercisable, Number of Shares \| shares	255,649
Options Outstanding and Exercisable, Aggregate Intrinsic Value \| $	$ 1,263
Range One [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Options Outstanding and Exercisable, Number of Shares \| shares	109,614
Options Outstanding and Exercisable, Weighted Average Exercise Price	$ 15.42
Options Outstanding and Exercisable, Weighted Average Remaining Contractual Life \| yr	1.87
Options Outstanding and Exercisable, Aggregate Intrinsic Value \| $	$ 1,135
Range Two [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Options Outstanding and Exercisable, Number of Shares \| shares	146,035
Options Outstanding and Exercisable, Weighted Average Exercise Price	$ 26.48
Options Outstanding and Exercisable, Weighted Average Remaining Contractual Life \| yr	1.37
Options Outstanding and Exercisable, Aggregate Intrinsic Value \| $	$ 128
Minimum [Member] \| Range One [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Options Outstanding and Exercisable, Exercise price range	$ 13.54
Minimum [Member] \| Range Two [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Options Outstanding and Exercisable, Exercise price range	20.07
Maximum [Member] \| Range One [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Options Outstanding and Exercisable, Exercise price range	18.38
Maximum [Member] \| Range Two [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Options Outstanding and Exercisable, Exercise price range	$ 29.93

Stock-Based Compensation - Effect of Recording Stock-Based Compensation (Detail) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Stock-based compensation expense by type of award:
Total stock-based compensation	$ 13,031	$ 11,225	$ 10,604
Tax effect on stock-based compensation	(1,862)	(5,019)	(1,253)
Net effect on net income	$ 11,169	$ 6,206	$ 9,351
Effect on net earnings per share:
Basic	$ 0.21	$ 0.12	$ 0.19
Diluted	$ 0.21	$ 0.12	$ 0.18
Restricted stock [Member]
Stock-based compensation expense by type of award:
Total stock-based compensation	$ 11,836	$ 10,126	$ 10,026
Employee stock purchase plan [Member]
Stock-based compensation expense by type of award:
Total stock-based compensation	$ 1,195	$ 1,099	$ 578

- Definition

Represents the expense recognized during the period arising from equity-based compensation arrangements (for example, shares of stock, unit, stock options or other equity instruments) with employees, directors and certain consultants qualifying for treatment as employees.

+ References + Details

Stock-Based Compensation - Pre-Tax Effect Within Consolidated Statements of Operations of Recording Stock-Based Compensation (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Total pre-tax stock-based compensation expense	$ 13,031	$ 11,225	$ 10,604
Cost of sales [Member]
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Total pre-tax stock-based compensation expense	1,867	1,511	1,452
Research and development expense [Member]
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Total pre-tax stock-based compensation expense	2,278	2,197	2,391
Selling general and administrative expense [Member]
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Total pre-tax stock-based compensation expense	$ 8,886	$ 7,517	$ 6,761

- Definition

+ References + Details

Stock-Based Compensation - Fair Value of Employees' Purchase Rights Estimated Using Black-Scholes Option-Pricing Model (Detail) - USD ($)	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Employee stock purchase rights:
Expected life (years)	6 months	6 months	6 months
Risk-free interest rate	0.10%	0.20%	0.20%
Expected volatility	32.20%	31.90%	48.70%
Expected annual dividends per share	$ 0.62	$ 0.60

Employee Benefit Plans - Additional Information (Detail) $ in Thousands	12 Months Ended
	Dec. 31, 2012 USD ($) Age	Dec. 31, 2011 USD ($)	Dec. 31, 2010 USD ($)
Defined Contribution Plan [Line Items]
Employee contribution to Company's profit sharing plan percentage minimum	1.00%
Employee contribution to Company's profit sharing plan percentage maximum	50.00%
Minimum age limit for specified additional amount \| Age	50
Employers contribution percentage limit	50.00%
Employees maximum contribution as a percentage of salary	6.00%
Company's contributions	$ 2,245	$ 2,276	$ 1,472
Bonus expense	6,248	7,559	18,972
Supplemental retirement benefits cost	3,454	3,931	$ 3,428
Accumulated benefit obligation	$ 16,353	$ 12,870

Net Income Per Share - Reconciliation of Basic and Diluted Net Income Per Share (Detail) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2012	Sep. 30, 2012	Jun. 30, 2012	Mar. 31, 2012	Dec. 31, 2011	Sep. 30, 2011	Jun. 30, 2011	Mar. 31, 2011	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Numerator:
Income from continuing operations	$ 6,615	$ 6,392	$ 27,847	$ 33,369	$ 30,000	$ 41,112	$ 57,305	$ 56,508	$ 48,029	$ 129,731	$ 132,919
Income from discontinued operations, net of tax											9,668
Net income	$ 4,109	$ 2,580	$ 18,572	$ 22,768	$ 22,714	$ 30,373	$ 38,601	$ 38,043	$ 48,029	$ 129,731	$ 142,587
Denominator:
Shares used in net income per common share - basic									52,686,000	52,169,000	50,077,000
Effect of dilutive securities:
Stock options, restricted stock and employee stock purchase plan									548,000	678,000	850,000
Shares used in net income per common share - diluted									53,234,000	52,847,000	50,927,000
Basic income per common share:
Continuing operations									$ 0.91	$ 2.49	$ 2.66
Discontinued operations											0.19
Net income	$ 0.08	$ 0.05	$ 0.35	$ 0.43	$ 0.43	$ 0.58	$ 0.74	$ 0.74	0.91	2.49	2.85
Diluted income per common share:
Continuing operations									0.90	2.45	2.61
Discontinued operations											0.19
Net income	$ 0.08	$ 0.05	$ 0.35	$ 0.43	$ 0.43	$ 0.57	$ 0.73	$ 0.73	$ 0.90	$ 2.45	$ 2.80

Net Income Per Share - Additional Information (Detail) - shares	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Earnings Per Share [Line Items]
Stock options and restricted stock units outstanding	1,198,000	1,536,000	3,121,000
Number of shares excluded from computation of diluted earnings per share	204,000	259,000	1,256,000

- Definition

Securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) or earnings per unit (EPU) in the future that were not included in the computation of diluted EPS or EPU because to do so would increase EPS or EPU amounts or decrease loss per share or unit amounts for the period presented.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Antidilution
-URI http://asc.fasb.org/extlink&oid=6505113

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Diluted Earnings Per Share
-URI http://asc.fasb.org/extlink&oid=6510752

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Contingent Stock Agreement
-URI http://asc.fasb.org/extlink&oid=6508534

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 260
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257

Reference 5: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 128
-Paragraph 40
-Subparagraph c
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 6: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 128
-Paragraph 13, 14
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 7: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Emerging Issues Task Force (EITF)
-Number 07-4
-Paragraph 4
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 8: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 128
-Paragraph 171
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

+ Details

Business Segment, Geographic Area, Product and Significant Customer Information - Additional Information (Detail)	12 Months Ended
	Dec. 31, 2012 Product Segment SegmentsProductsCustomers
Segment Information [Line Items]
Number of operating and reporting segments previously reported	1
Number of reportable segments	4
Number of operating segments	8
Number of product groups \| Product	4
Number of major customers \| SegmentsProductsCustomers	2
Entity wide net revenue major customer percentage minimum	10.00%

Business Segment, Geographic Area, Product and Significant Customer Information - Net Revenues by Reportable Segment (Detail) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2012	Sep. 30, 2012	Jun. 30, 2012	Mar. 31, 2012	Dec. 31, 2011	Sep. 30, 2011	Jun. 30, 2011	Mar. 31, 2011	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Operating Statistics [Line Items]
Total net revenues	$ 133,796	$ 141,447	$ 177,397	$ 190,868	$ 171,671	$ 194,508	$ 224,487	$ 231,851	$ 643,508	$ 822,517	$ 853,114
Advance Manufacturing Capital Equipment [Member]
Operating Statistics [Line Items]
Total net revenues									479,751	647,908	712,737
Analytical Solutions Group [Member]
Operating Statistics [Line Items]
Total net revenues									62,765	61,303	52,888
Europe Region Sales & Service [Member]
Operating Statistics [Line Items]
Total net revenues									51,440	75,253	70,153
Asia Region Sales & Service [Member]
Operating Statistics [Line Items]
Total net revenues									229,731	305,448	274,912
Corporate, Eliminations and Other [Member]
Operating Statistics [Line Items]
Total net revenues									$ (180,179)	$ (267,395)	$ (257,576)

Business Segment, Geographic Area, Product and Significant Customer Information - Schedule of Gross Profit (Loss) by Reportable Segment (Detail) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2012	Sep. 30, 2012	Jun. 30, 2012	Mar. 31, 2012	Dec. 31, 2011	Sep. 30, 2011	Jun. 30, 2011	Mar. 31, 2011	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Operating Statistics [Line Items]
Gross profit	$ 52,601	$ 56,571	$ 76,516	$ 83,791	$ 75,961	$ 87,678	$ 104,988	$ 106,361	$ 269,479	$ 374,988	$ 378,638
Advance Manufacturing Capital Equipment [Member]
Operating Statistics [Line Items]
Gross profit									171,308	263,863	294,502
Analytical Solutions Group [Member]
Operating Statistics [Line Items]
Gross profit									32,741	31,800	25,830
Europe Region Sales & Service [Member]
Operating Statistics [Line Items]
Gross profit									15,156	21,323	19,587
Asia Region Sales & Service [Member]
Operating Statistics [Line Items]
Gross profit									36,962	45,267	48,952
Corporate, Eliminations and Other [Member]
Operating Statistics [Line Items]
Gross profit									$ 13,312	$ 12,735	$ (10,233)

Business Segment, Geographic Area, Product and Significant Customer Information - Schedule of Capital Expenditures, Depreciation and Amortization Expense and Segment Assets by Reportable Segment (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Operating Statistics [Line Items]
Capital expenditures	$ 17,705	$ 15,567	$ 15,819
Depreciation and amortization	14,442	12,980	13,823
Accounts receivable	82,060	120,894
Inventory	134,639	153,632
Total segment assets	216,699	274,526
Advance Manufacturing Capital Equipment [Member]
Operating Statistics [Line Items]
Capital expenditures	11,817	11,947	11,148
Depreciation and amortization	9,594	8,143	7,872
Accounts receivable	9,644	24,224
Inventory	108,397	119,314
Total segment assets	118,041	143,538
Analytical Solutions Group [Member]
Operating Statistics [Line Items]
Capital expenditures	1,228	868	1,287
Depreciation and amortization	1,176	1,470	1,432
Accounts receivable	5,889	5,099
Inventory	3,841	4,442
Total segment assets	9,730	9,541
Europe Region Sales & Service [Member]
Operating Statistics [Line Items]
Capital expenditures	132	362	374
Depreciation and amortization	326	366	279
Accounts receivable	5,813	6,079
Inventory	3,691	3,828
Total segment assets	9,504	9,907
Asia Region Sales & Service [Member]
Operating Statistics [Line Items]
Capital expenditures	886	1,552	1,189
Depreciation and amortization	1,711	1,539	1,473
Accounts receivable	32,088	60,242
Inventory	29,534	45,828
Total segment assets	61,622	106,070
Corporate, Eliminations and Other [Member]
Operating Statistics [Line Items]
Capital expenditures	3,642	838	1,821
Depreciation and amortization	1,635	1,462	$ 2,767
Accounts receivable	28,626	25,250
Inventory	(10,824)	(19,780)
Total segment assets	$ 17,802	$ 5,470

Business Segment, Geographic Area, Product and Significant Customer Information - Reconciliation of Segment Assets to Consolidated Total Assets (Detail) - USD ($) $ in Thousands	Dec. 31, 2012	Dec. 31, 2011
Segment Reporting Information [Line Items]
Total segment assets	$ 216,699	$ 274,526
Cash and cash equivalents and investments	627,399	573,392
Other current assets	36,242	44,856
Property, plant and equipment, net	80,516	72,487
Goodwill and intangible assets, net	162,294	141,127
Other assets	11,692	12,266
Total assets	$ 1,134,842	$ 1,118,654

Business Segment, Geographic Area, Product and Significant Customer Information - Company's Operations in Different Geographic Regions (Detail) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2012	Sep. 30, 2012	Jun. 30, 2012	Mar. 31, 2012	Dec. 31, 2011	Sep. 30, 2011	Jun. 30, 2011	Mar. 31, 2011	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Revenues from External Customers and Long-Lived Assets [Line Items]
Net revenues	$ 133,796	$ 141,447	$ 177,397	$ 190,868	$ 171,671	$ 194,508	$ 224,487	$ 231,851	$ 643,508	$ 822,517	$ 853,114
Long-lived assets	82,711				74,479				82,711	74,479
United States [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net revenues									326,894	391,122	484,139
Long-lived assets	62,203				56,760				62,203	56,760
Japan [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net revenues									81,883	106,003	118,537
Long-lived assets	2,562				3,908				2,562	3,908
Europe [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net revenues									85,362	115,362	96,545
Long-lived assets	5,844				5,437				5,844	5,437
Asia (excluding Japan) [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net revenues									149,369	210,030	$ 153,893
Long-lived assets	$ 12,102				$ 8,374				$ 12,102	$ 8,374

Business Segment, Geographic Area, Product and Significant Customer Information - Worldwide Net Revenue for Each Group of Products (Detail) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2012	Sep. 30, 2012	Jun. 30, 2012	Mar. 31, 2012	Dec. 31, 2011	Sep. 30, 2011	Jun. 30, 2011	Mar. 31, 2011	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Revenue from External Customer [Line Items]
Net sales from product groups	$ 133,796	$ 141,447	$ 177,397	$ 190,868	$ 171,671	$ 194,508	$ 224,487	$ 231,851	$ 643,508	$ 822,517	$ 853,114
Instruments and Control Products [Member]
Revenue from External Customer [Line Items]
Net sales from product groups									258,521	348,735	373,909
Power and Reactive Gas Products [Member]
Revenue from External Customer [Line Items]
Net sales from product groups									251,669	327,151	343,827
Vacuum Products [Member]
Revenue from External Customer [Line Items]
Net sales from product groups									66,418	81,782	78,819
Analytical Solutions Group Products [Member]
Revenue from External Customer [Line Items]
Net sales from product groups									$ 66,900	$ 64,849	$ 56,559

Business Segment, Geographic Area, Product and Significant Customer Information - Customers With Net Revenues Greater Than 10% of Total Net Revenues (Detail)	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Customer A [Member]
Revenue, Major Customer [Line Items]
Percentage of total net revenues	14.50%	13.56%	15.76%
Customer B [Member]
Revenue, Major Customer [Line Items]
Percentage of total net revenues	10.12%	6.52%	9.00%

Commitments and Contingencies - Additional Information (Detail) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Sep. 30, 2012	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Contingencies And Commitments [Line Items]
Litigation settlement with shareholders of former subsidiary	$ 5,316	$ 5,316
Lease expiration date		2022
Rental expenses under operating leases		$ 8,219	$ 7,747	$ 8,304
Purchase commitments covered by aggregate value		$ 125,378
Purchase commitments		Less than one year

Commitments and Contingencies - Minimum lease Payments under Operating Leases (Detail) $ in Thousands	Dec. 31, 2012 USD ($)
Schedule Of Future Minimum Rental Payments For Operating Leases [Line Items]
2013	$ 7,561
2014	5,749
2015	3,973
2016	2,974
2017	2,952
Thereafter	3,252
Total minimum lease payments	$ 26,461

Commitments and Contingencies - Supplemental Financial Data (Detail) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2012	Sep. 30, 2012	Jun. 30, 2012	Mar. 31, 2012	Dec. 31, 2011	Sep. 30, 2011	Jun. 30, 2011	Mar. 31, 2011	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Statement of Operations Data
Net sales	$ 133,796	$ 141,447	$ 177,397	$ 190,868	$ 171,671	$ 194,508	$ 224,487	$ 231,851	$ 643,508	$ 822,517	$ 853,114
Gross profit	52,601	56,571	76,516	83,791	75,961	87,678	104,988	106,361	269,479	374,988	378,638
Income from operations	6,615	6,392	27,847	33,369	30,000	41,112	57,305	56,508	48,029	129,731	132,919
Net income	$ 4,109	$ 2,580	$ 18,572	$ 22,768	$ 22,714	$ 30,373	$ 38,601	$ 38,043	$ 48,029	$ 129,731	$ 142,587
Net income per share:
Basic	$ 0.08	$ 0.05	$ 0.35	$ 0.43	$ 0.43	$ 0.58	$ 0.74	$ 0.74	$ 0.91	$ 2.49	$ 2.85
Diluted	0.08	0.05	0.35	0.43	0.43	0.57	0.73	0.73	0.90	2.45	2.80
Cash dividends paid per common share	$ 0.16	$ 0.16	$ 0.15	$ 0.15	$ 0.15	$ 0.15	$ 0.15	$ 0.15	$ 0.62	$ 0.60

- Definition

The amount of net income (loss) for the period per each share of common stock or unit outstanding during the reporting period.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 225
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03.21)
-URI http://asc.fasb.org/extlink&oid=6880815&loc=d3e20235-122688

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 260
-SubTopic 10
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
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-SubTopic 10
-Section 55
-Paragraph 52
-URI http://asc.fasb.org/extlink&oid=16381557&loc=d3e4984-109258

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-Name Accounting Standards Codification
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-SubTopic 10
-Section 45
-Paragraph 2
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Reference 5: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 225
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-04.19)
-URI http://asc.fasb.org/extlink&oid=6879464&loc=d3e573970-122913

Reference 6: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 225
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-04.23)
-URI http://asc.fasb.org/extlink&oid=6879574&loc=d3e536633-122882

Reference 7: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 04
-Paragraph 18
-Article 7

Reference 8: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 128
-Paragraph 36, 37, 38
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 9: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Emerging Issues Task Force (EITF)
-Number 07-4
-Paragraph 4
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 10: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 03
-Paragraph 20
-Article 5

Reference 11: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 04
-Paragraph 21
-Article 9

+ Details

- Definition

The amount of net income (loss) for the period available to each share of common stock or common unit outstanding during the reporting period and to each share or unit that would have been outstanding assuming the issuance of common shares or units for all dilutive potential common shares or units outstanding during the reporting period.

+ References + Details

- Definition

Amount of income (loss) from continuing operations attributable to the parent. Also defined as revenue less expenses and taxes from ongoing operations before extraordinary items but after deduction of those portions of income or loss from continuing operations that are allocable to noncontrolling interests.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 28
-URI http://asc.fasb.org/extlink&oid=6943989&loc=d3e3602-108585

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 260
-SubTopic 10
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-Paragraph 1
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257

Reference 3: http://www.xbrl.org/2003/role/presentationRef
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-Name Accounting Standards Codification
-Topic 225
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-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03.13)
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-Paragraph 18
-URI http://asc.fasb.org/extlink&oid=7656940&loc=SL4613673-111683

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-Publisher AICPA
-Name Accounting Research Bulletin (ARB)
-Number 51
-Paragraph 38
-Subparagraph b(1)
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 6: http://www.xbrl.org/2003/role/presentationRef
-Publisher AICPA
-Name Accounting Research Bulletin (ARB)
-Number 51
-Paragraph 29
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 7: http://www.xbrl.org/2003/role/presentationRef
-Publisher AICPA
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-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

+ Details

- Definition

The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Net Income
-URI http://asc.fasb.org/extlink&oid=6518256

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 28
-URI http://asc.fasb.org/extlink&oid=6943989&loc=d3e3602-108585

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
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-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-04.19)
-URI http://asc.fasb.org/extlink&oid=6879464&loc=d3e573970-122913

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 260
-SubTopic 10
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257

Reference 5: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 225
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03.18)
-URI http://asc.fasb.org/extlink&oid=6880815&loc=d3e20235-122688

Reference 6: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 225
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-04.22)
-URI http://asc.fasb.org/extlink&oid=6879464&loc=d3e573970-122913

Reference 7: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Other Comprehensive Income
-URI http://asc.fasb.org/extlink&oid=6519514

Reference 8: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 220
-SubTopic 10
-Section 45
-Paragraph 6
-URI http://asc.fasb.org/extlink&oid=20435746&loc=d3e565-108580

Reference 9: http://www.xbrl.org/2003/role/presentationRef
-Publisher AICPA
-Name Accounting Research Bulletin (ARB)
-Number 51
-Paragraph 38
-Subparagraph d
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 10: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 130
-Paragraph 10, 15
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 11: http://www.xbrl.org/2003/role/presentationRef
-Publisher AICPA
-Name Accounting Research Bulletin (ARB)
-Number 51
-Paragraph A7
-Appendix A

Reference 12: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Emerging Issues Task Force (EITF)
-Number 87-21
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 13: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 03
-Paragraph 19
-Article 5

Reference 14: http://www.xbrl.org/2003/role/presentationRef
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-Name Accounting Research Bulletin (ARB)
-Number 51
-Paragraph 38
-Subparagraph a
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 15: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 95
-Paragraph 28, 29, 30
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 16: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 04
-Paragraph 20
-Article 9

+ Details

Schedule II - Valuation and Qualifying Accounts (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Accounts receivable allowance [Member]
Valuation and Qualifying Accounts Disclosure [Line Items]
Balance at Beginning of Year	$ 2,516	$ 2,557	$ 2,415
Additions Charged to Costs and Expenses	3,452	3,390	3,637
Additions Charged to Other Accounts
Deductions	3,089	3,431	3,495
Balance at End of Year	2,879	2,516	2,557
Valuation allowance on deferred tax asset [Member]
Valuation and Qualifying Accounts Disclosure [Line Items]
Balance at Beginning of Year	26,475	25,267	5,201
Additions Charged to Costs and Expenses	(44)
Additions Charged to Other Accounts	1,066	1,208	20,833
Deductions			767
Balance at End of Year	$ 27,497	$ 26,475	$ 25,267