MKS Instruments (MKSI) 10-Q 8 Nov 16 2016 Q3 Quarterly report Financial data

Document and Entity Information

Document and Entity Information - shares	9 Months Ended
	Sep. 30, 2016	Nov. 01, 2016
Document And Entity Information [Abstract]
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Sep. 30, 2016
Document Fiscal Year Focus	2,016
Document Fiscal Period Focus	Q3
Trading Symbol	MKSI
Entity Registrant Name	MKS INSTRUMENTS INC
Entity Central Index Key	1,049,502
Current Fiscal Year End Date	--12-31
Entity Filer Category	Large Accelerated Filer
Entity Common Stock, Shares Outstanding		53,592,715

Condensed Consolidated Balance

Condensed Consolidated Balance Sheets (Unaudited) - USD ($) $ in Thousands	Sep. 30, 2016	Dec. 31, 2015
Current assets:
Cash and cash equivalents	$ 366,874	$ 227,574
Restricted cash	5,931
Short-term investments	53,104	430,663
Trade accounts receivable, net	243,853	101,883
Inventories, net	278,965	152,631
Other current assets	53,616	26,760
Total current assets	1,002,343	939,511
Property, plant and equipment, net	179,694	68,856
Goodwill	594,635	199,703
Intangible assets, net	419,811	44,027
Long-term investments	15,256
Other assets	29,926	21,250
Total assets	2,241,665	1,273,347
Current liabilities:
Short-term borrowings and current portion of long-term debt	11,528
Accounts payable	68,371	23,177
Accrued compensation	63,424	28,424
Income taxes payable	13,758	4,024
Other current liabilities	73,354	35,359
Total current liabilities	230,435	90,984
Long-term debt, net	639,068
Non-current deferred taxes	91,928	2,655
Non-current accrued compensation	44,739	13,395
Other liabilities	19,956	5,432
Total liabilities	1,026,126	112,466
Commitments and contingencies (Note 20)
Stockholders' equity:
Preferred Stock, $0.01 par value per share, 2,000,000 shares authorized; none issued and outstanding
Common Stock, no par value, 200,000,000 shares authorized; 53,578,091 and 53,199,720 shares issued and outstanding at September 30, 2016 and December 31, 2015, respectively	113	113
Additional paid-in capital	770,444	744,725
Retained earnings	458,369	427,214
Accumulated other comprehensive loss	(13,387)	(11,171)
Total stockholders' equity	1,215,539	1,160,881
Total liabilities and stockholders' equity	$ 2,241,665	$ 1,273,347

Condensed Consolidated Balance3

Condensed Consolidated Balance Sheets (Unaudited) (Parenthetical) - $ / shares	Sep. 30, 2016	Dec. 31, 2015
Statement of Financial Position [Abstract]
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
Common Stock, shares authorized	200,000,000	200,000,000
Common Stock, shares issued	53,578,091	53,199,720
Common Stock, shares outstanding	53,578,091	53,199,720

Condensed Consolidated Statemen

Condensed Consolidated Statements of Operations and Comprehensive Income (Unaudited) - USD ($) shares in Thousands, $ in Thousands		3 Months Ended		9 Months Ended
		Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Net revenues:
Products		$ 335,156	$ 179,441	$ 774,248	$ 553,818
Services		45,504	29,891	115,954	87,319
Total net revenues		380,660	209,332	890,202	641,137
Cost of revenues:
Cost of products		183,789	95,710	433,134	294,211
Cost of services		28,486	19,393	74,857	56,853
Total cost of revenues (exclusive of amortization shown separately below)		212,275	115,103	507,991	351,064
Gross profit		168,385	94,229	382,211	290,073
Research and development		32,268	17,217	77,709	51,464
Selling, general and administrative		70,424	33,396	175,803	97,532
Acquisition costs		233		10,932	30
Restructuring			562	24	1,569
Amortization of intangible assets		12,452	1,691	22,990	5,071
Income from operations		53,008	41,363	94,753	134,407
Interest and other (expense) income, net		(10,760)	721	(16,332)	2,015
Income before income taxes		42,248	42,084	78,421	136,422
Provision for income taxes		9,699	12,315	19,099	39,647
Net income		32,549	29,769	59,322	96,775
Other comprehensive income:
Changes in value of financial instruments designated as cash flow hedges, net of tax (expense) benefit	[1]	(229)	939	(2,104)	2
Foreign currency translation adjustments, net of tax of $0		5,698	(3,623)	(536)	(6,217)
Unrealized (loss) gain on investments and minimum pension liability adjustment, net of tax (benefit) expense	[2]	(31)	100	424	16
Total comprehensive income		$ 37,987	$ 27,185	$ 57,106	$ 90,576
Net income per share:
Basic		$ 0.61	$ 0.56	$ 1.11	$ 1.82
Diluted		0.60	0.56	1.10	1.81
Cash dividends per common share		$ 0.170	$ 0.170	$ 0.510	$ 0.505
Weighted average common shares outstanding:
Basic		53,574	53,314	53,423	53,304
Diluted		54,315	53,568	53,895	53,562
[1]	Tax (benefit) expense was $(117) and $548 for the three months ended September 30, 2016 and 2015, respectively. Tax (benefit) expense was $(1,357) and $20 for the nine months ended September 30, 2016 and 2015, respectively
[2]	Tax (benefit) expense was $(15) and $59 for the three months ended September 30, 2016 and 2015, respectively. Tax expense was $274 and $221 for the nine months ended September 30, 2016 and 2015, respectively.

Condensed Consolidated Stateme5

Condensed Consolidated Statements of Operations and Comprehensive Income (Unaudited) (Parenthetical) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Income Statement [Abstract]
Tax (benefit) expense on changes in value of financial instruments designated as cash flow hedges	$ (117)	$ 548	$ (1,357)	$ 20
Tax on foreign currency translation adjustments	0	0	0	0
Tax (benefit) expense on unrealized (loss) gain on investment and minimum pension liability adjustment	$ (15)	$ 59	$ 274	$ 221

Condensed Consolidated Stateme6

Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015
Cash flows provided by operating activities:
Net income	$ 59,322	$ 96,775
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	43,757	16,606
Amortization of inventory step-up adjustment to fair value	15,090
Amortization of debt issuance cost and original issue discount	6,453
Stock-based compensation	19,826	10,025
Provision for excess and obsolete inventory	11,045	9,235
Provision for bad debt	167	(358)
Deferred income taxes	(9,567)	(2,153)
Excess tax benefits from stock-based compensation	(678)	(884)
Other	125	248
Changes in operating assets and liabilities:
Trade accounts receivable	(44,508)	(11,424)
Inventories	(5,077)	(25,219)
Income taxes	20,418	10,461
Other current assets	(8,846)	(7,935)
Accrued compensation	4,460	3,619
Other current and non-current liabilities	4,568	4,557
Accounts payable	14,110	(7,542)
Other assets	(3,288)	(441)
Net cash provided by operating activities	127,377	95,570
Cash flows used in investing activities:
Acquisition of businesses, net of cash acquired	(939,591)	(9,910)
Purchases of investments	(116,075)	(318,340)
Maturities of investments	148,606	131,004
Sales of investments	337,592	35,720
Proceeds from sale of property, plant and equipment	40	8
Purchases of property, plant and equipment	(11,959)	(8,831)
Net cash used in investing activities	(581,387)	(170,349)
Cash flows provided by (used in) financing activities:
Restricted cash	(6,176)
Proceeds from short-term borrowings	15,434	2,020
Payments of short-term borrowings	(8,289)	(2,020)
Net proceeds from long-term borrowings	743,746
Payments of long-term borrowings	(111,825)
Repurchase of common stock	(1,545)	(8,866)
Net payments related to employee stock awards	(3,108)	(800)
Dividend payments to common stockholders	(27,249)	(26,928)
Excess tax benefits from stock-based compensation	678	884
Net cash provided by (used in) financing activities	601,666	(35,710)
Effect of exchange rate changes on cash and cash equivalents	(8,356)	199
Increase (decrease) in cash and cash equivalents	139,300	(110,290)
Cash and cash equivalents at beginning of period	227,574	305,437
Cash and cash equivalents at end of period	$ 366,874	$ 195,147

Basis of Presentation

Basis of Presentation	9 Months Ended
	Sep. 30, 2016
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Basis of Presentation	1) Basis of Presentation The terms “MKS” and the “Company” refer to MKS Instruments, Inc. and its subsidiaries. All intercompany accounts and transactions have been eliminated in consolidation. The interim financial data as of September 30, 2016 and for the three and nine months ended September 30, 2016 and 2015 are unaudited; however, in the opinion of MKS, the interim data includes all adjustments, consisting of normal recurring adjustments, necessary for a fair statement of the results for the interim periods. The condensed consolidated balance sheet presented as of December 31, 2015 has been derived from the consolidated audited financial statements as of that date. The unaudited condensed consolidated financial statements presented herein have been prepared in accordance with the instructions to Form 10-Q and do not include all of the information and note disclosures required by United States generally accepted accounting principles (“U.S. GAAP”). The unaudited condensed consolidated financial statements should be read in conjunction with the audited consolidated financial statements and notes thereto included in the MKS Annual Report on Form 10-K for the year ended December 31, 2015 filed with the Securities and Exchange Commission on February 26, 2016. On April 29, 2016, the Company completed its acquisition of Newport Corporation which is more fully described in Note 3 below. This transaction was recorded using the purchase method of accounting; accordingly, the financial results of the acquisition are included in the accompanying unaudited condensed consolidated financial statements for the periods subsequent to the acquisition. The preparation of these unaudited condensed consolidated 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 unaudited condensed consolidated 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, stock-based compensation, inventory, intangible assets, goodwill and other long-lived assets, warranty liabilities, pension liabilities, acquisition expenses, income taxes and investments. 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.

Recently Issued Accounting Pron

Recently Issued Accounting Pronouncements	9 Months Ended
	Sep. 30, 2016
Accounting Changes and Error Corrections [Abstract]
Recently Issued Accounting Pronouncements	2) Recently Issued Accounting Pronouncements In August 2016, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update (“ASU”) 2016-15, “Statement of Cash Flows (Topic 230)-Classification of Certain Cash Receipts and Cash Payments.” This standard addresses eight specific cash flow issues with the objective of addressing the diversity in practice in how certain cash receipts and cash payments are presented and classified in the statement of cash flows under Topic 230. The provisions of this ASU are effective for annual periods beginning after December 15, 2017, including interim periods within those fiscal years. The Company is currently evaluating the requirements of this ASU and has not yet determined its impact on the Company’s consolidated financial statements. In March 2016, the FASB issued ASU 2016-09, “Compensation - Stock Compensation (Topic 718)—Improvements to Employee Share-Based Payment Accounting.” This standard simplifies several aspects of the accounting for share-based payment transactions, including the income tax consequences, classification of awards as either equity or liabilities, and classification on the statement of cash flows. The provisions of this ASU are effective for annual periods beginning after December 15, 2016, including interim periods within those fiscal years and early adoption is permitted. This ASU will be adopted in the first quarter of 2017 and could have a material impact on the Company’s consolidated financial statements In February 2016, the FASB issued ASU 2016-02, “Leases (Topic 842).” This standard requires the recognition of lease assets and liabilities for all leases, with certain exceptions, on the balance sheet. In transition, lessees and lessors are required to recognize and measure leases at the beginning of the earliest period presented using a modified retrospective approach. This ASU is effective for annual periods beginning after December 15, 2018, including interim periods within those fiscal years. The Company is currently evaluating the requirements of this ASU and has not yet determined its impact on the Company’s consolidated financial statements. In January 2016, the FASB issued ASU 2016-01, “Financial Instruments—Overall (Subtopic 825-10): Recognition and Measurement of Financial Assets and Financial Liabilities.” This ASU provides guidance for the recognition, measurement, presentation, and disclosure of financial instruments. The new pronouncement revises accounting related to equity investments and the presentation of certain fair value changes for financial assets and liabilities measured at fair value. Among other things, it amends the presentation and disclosure requirements of equity securities that do not result in consolidation and are not accounted for under the equity method. Changes in the fair value of these equity securities will be recognized directly in net income. This pronouncement is effective for annual periods beginning after December 15, 2017, including interim periods within those fiscal years. The Company does not expect adoption of this ASU to have a material impact on the Company’s consolidated financial statements. In July 2015, the FASB issued ASU 2015-11, “Inventory (Topic 330)—Simplifying the Measurement of Inventory.” The amendments in this ASU apply to all inventory that is measured using first-in, first-out or average cost. This standard requires that an entity measure inventory within the scope of this update at the lower of cost and net realizable value. Net realizable value is the estimated selling prices in the ordinary course of business, less reasonably predictable costs of completion, disposal, and transportation. The amendments in this ASU are effective for annual periods beginning after December 15, 2016, including interim periods within those fiscal years. The Company does not expect adoption of this ASU to have a material impact on the Company’s consolidated financial statements. In August 2014, the FASB issued ASU 2014-15, “Presentation of Financial Statements—Going Concern (Subtopic 205-40): Disclosure of Uncertainties about an Entity’s Ability to Continue as a Going Concern.” Under this guidance, management will be required to assess an entity’s ability to continue as a going concern, and to provide related footnote disclosures in certain circumstances. The provisions of this ASU are effective for annual periods beginning after December 15, 2016, including interim periods within those fiscal years. The Company does not expect the adoption of this ASU to have an impact on the Company’s consolidated financial statements. In May 2014, the FASB issued ASU 2014-09, “Revenue from Contracts with Customers (Topic 606),” which supersedes all existing revenue recognition requirements, including most industry-specific guidance. This standard requires a company to recognize revenue when it transfers goods and services to customers in an amount that reflects the consideration that the company expects to be entitled to in exchange for those goods or services. The ASU also requires additional disclosure about the nature, amount, timing and uncertainty of revenue and cash flows arising from customer contracts, including significant judgments and assets recognized from costs incurred to obtain or fulfill a contract. This pronouncement is effective for annual periods beginning after December 15, 2017, including interim periods within those fiscal years. The two permitted transition methods under the new standard are the full retrospective method, in which case the standard would be applied to each prior reporting period presented, or the modified retrospective method, in which case the cumulative effect of applying the standard would be recognized at the date of initial application. The Company has not yet selected a transition method. The Company is currently evaluating the requirements of this ASU and has not yet determined its impact on the Company’s consolidated financial statements.

Acquisitions

Acquisitions	9 Months Ended
	Sep. 30, 2016
Business Combinations [Abstract]
Acquisitions	3) Acquisitions Newport Corporation On April 29, 2016, the Company completed its acquisition of Newport Corporation (“Newport”) pursuant to an Agreement and Plan of Merger, dated as of February 22, 2016 (the “Merger Agreement”), by and among the Company, PSI Equipment, Inc., a wholly owned subsidiary of the Company (“Merger Sub”), and Newport (the “Newport Merger”). At the effective time of the Newport Merger and pursuant to the terms and conditions of the Merger Agreement, each share of Newport’s common stock that was issued and outstanding immediately prior to the effective time of the Newport Merger was converted into the right to receive $23.00 in cash, without interest and subject to deduction for any required withholding tax. Newport’s innovative solutions leverage its expertise in advanced technologies, including lasers, photonics and precision motion equipment, and optical components and sub-systems, to enhance the capabilities and productivity of its customers’ manufacturing, engineering and research applications. Newport is a global supplier of advanced-technology products and systems to customers in the scientific research and defense/security, microelectronics, life and health sciences and industrial manufacturing markets. The purchase price of Newport consisted of the following: Cash paid for outstanding shares (1) $ 905,254 Settlement of share-based compensation awards (2) 8,824 Cash paid for Newport debt (3) 93,200 Total purchase price $ 1,007,278 Less: Cash and cash equivalents acquired (61,463 ) Total purchase price, net of cash and cash equivalents acquired $ 945,815 (1) Represents cash paid of $23.00 per share for approximately 39,359,000 shares of Newport common stock, without interest and subject to a deduction for any required withholding tax. (2) Represents the vested but not issued portion of Newport share-based compensation awards as of the acquisition date of April 29, 2016. (3) Represents the cash paid for the outstanding balance of Newport’s senior secured revolving credit agreement. The Company funded the payment of the aggregate consideration with a combination of the Company’s available cash on hand and the proceeds from the Company’s senior secured term loan facility, as described in Note 11. Under the acquisition method of accounting, the total estimated acquisition consideration is allocated to the acquired tangible and intangible assets and assumed liabilities of Newport based on their fair values as of the acquisition date. Any excess of the acquisition consideration over the fair value of assets acquired and liabilities assumed is allocated to goodwill. The Company expects that all such goodwill and intangible assets will not be deductible for tax purposes. The following table summarizes the allocation of the preliminary purchase price to the fair values assigned to assets acquired and liabilities assumed at the date of the Newport Merger: Current assets (including cash) $ 185,155 Inventory 142,714 Intangible assets 399,806 Goodwill 396,216 Property, plant and equipment 119,932 Long-term assets 22,725 Total assets acquired 1,266,548 Current liabilities 98,458 Other long-term liabilities 160,812 Total liabilities assumed 259,270 Fair value of assets acquired and liabilities assumed 1,007,278 Less: Cash and cash equivalents acquired (61,463 ) Total purchase price, net of cash and cash equivalents acquired $ 945,815 For the three and nine months ended September 30, 2016, the Company recorded $4,971 and $15,090 incremental cost of sales charges associated with the fair value write-up of inventory acquired in the merger with Newport. The fair value write-up of acquired property, plant and equipment of $36,242 will be amortized over the useful life of the asset. Property, plant and equipment is valued at its value-in-use, unless there was a known plan to dispose of the asset. The acquired intangible assets are being amortized on a straight-line basis, which approximates the economic use of the asset. The following table reflects the allocation of the acquired intangible assets and liabilities and related estimate of useful lives: Order backlog $ 12,100 1 year Customer relationships 243,093 6-18 years Trademarks and trade names 55,900 Indefinite Developed technology 75,386 4-8 years In-process research and development 6,899 Undefined (1) Leasehold interest, net (2) 2,126 4-5 years Total $ 395,504 (1) The useful lives of in-process research and development will be defined in the future upon further evaluation of the status of these programs. (2) Leasehold interest is comprised of a favorable leasehold asset of $6,428 and an unfavorable leasehold liability of $4,302. The fair value of the acquired intangibles was determined using the income approach. In performing these valuations, the key underlying probability-adjusted assumptions of the discounted cash flows were projected revenues, gross margin expectations and operating cost estimates. The valuations were based on the information that was available as of the acquisition date and the expectations and assumptions that have been deemed reasonable by the Company’s management. There are inherent uncertainties and management judgment required in these determinations. This acquisition resulted in a purchase price that exceeded the estimated fair value of tangible and intangible assets, the excess amount of which was allocated to goodwill. While the Company uses its best estimates and assumptions as part of the purchase price allocation process to value the assets acquired and liabilities assumed on the acquisition date, its estimates and assumptions are subject to refinement. Fair value estimates are based on a complex series of judgments about future events and uncertainties and rely heavily on estimates and assumptions. The judgments used to determine the estimated fair value assigned to each class of assets acquired and liabilities assumed, as well as asset lives, can materially impact the Company’s results of operations. The finalization of the purchase accounting assessment will result in a change in the valuation of assets acquired and liabilities assumed and may have a material impact on the Company’s results of operations and financial position. As a result, during the measurement period, which may be up to one year from the acquisition date, the Company will record adjustments to the assets acquired and liabilities assumed with a corresponding offset to goodwill to reflect additional information received about facts and circumstances which existed at the date of acquisition. The Company records adjustments to the assets acquired and liabilities assumed subsequent to the purchase price allocation period in the Company’s operating results in the period in which the adjustments were determined. The size and breadth of the Newport Merger necessitates the use of this measurement period to adequately analyze and assess a number of the factors used in establishing the fair value of certain tangible and intangible assets acquired and liabilities assumed as of the acquisition date and the related tax impacts of any changes made. Any potential adjustments made could be material in relation to the preliminary values presented above. The Company believes 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 to attract new customers and revenue and cross sell to existing customers. The results of this acquisition were included in the Company’s consolidated operations beginning on April 29, 2016. Newport constitutes the Company’s Light & Motion Division reportable segment (see Note 19). Certain executives from Newport have severance provisions in their respective Newport employment agreements. The agreements include terms that are accounted for as dual-trigger arrangements. Through the Company’s acquisition accounting, the expense relating to these benefits was recognized in the combined entity’s financial statements, however, the benefit itself will not be distributed until the final provision is met by each eligible executive. The Company recorded costs of $6,631 and $3,334 as compensation expense and stock-based compensation expense, respectively, for the nine months ended September 30, 2016 in connection with these severance provisions. The shares underlying the restricted stock units and stock appreciation rights that are eligible for accelerated vesting if the executive exercises his rights are not issued as of each reporting period-end and are excluded from the computation of basic earnings per share and included in the computation of diluted earnings per share for such reporting period. Pro Forma Results The following unaudited pro forma financial information presents the combined results of operations of the Company as if the Newport Merger had occurred on January 1, 2015. The unaudited pro forma financial information is not necessarily indicative of what the Company’s condensed consolidated results of operations actually would have been had the acquisition occurred at the beginning of each year. In addition, the unaudited pro forma financial information does not attempt to project the future results of operations of the combined company. Three Months Ended September 30, Nine Months Ended September 30, 2016 2015 2016 2015 Total net revenues $ 380,660 $ 355,955 $ 1,070,471 $ 1,090,641 Net income $ 35,915 $ 23,725 $ 65,313 $ 48,239 Net income per share: Basic $ 0.67 $ 0.45 $ 1.22 $ 0.90 Diluted $ 0.66 $ 0.44 $ 1.21 $ 0.90 The unaudited pro forma financial information above gives effect primarily to the following: (1) Incremental amortization and depreciation expense related to the estimated fair value of identifiable intangible assets and property, plant and equipment from the purchase price allocation. (2) Revenue adjustments as a result of the reduction in deferred revenue related to its estimated fair value. (3) Incremental interest expense related to the Company’s term loan credit agreement. (4) The exclusion of acquisition costs and inventory step-up amortization from the three and nine month periods ended September 30, 2016 and the addition of these items to the nine month period ended September 30, 2015. (5) The estimated tax impact of the above adjustments. Investment in Reno Sub-Systems, Inc. On April 27, 2016, the Company invested $9,300 for a minority interest in Reno Sub-Systems, Inc., a Delaware corporation, which operates in the field of semiconductor process equipment instrumentation. The Company accounted for this investment using the cost method of accounting. Precisive, LLC On March 17, 2015, the Company acquired Precisive, LLC (“Precisive”) for $12,085, net of cash acquired of $435. The purchase price included a deferred payment amount of $2,600 to cover any potential indemnification claims, which amount was paid to the sellers in the second quarter of 2016. Precisive is an innovative developer of optical analyzers based on Tunable Filter Spectroscopy, which provide real-time gas analysis in the natural gas and hydrocarbon processing industries, including refineries, hydrocarbon processing plants, gas-to-power machines, biogas processes and fuel gas transportation and metering, while delivering customers a lower total cost of ownership. The following table summarizes the estimated fair value of the assets acquired and liabilities assumed at the date of the Precisive acquisition: Current assets $ 693 Non-current assets 18 Intangible assets 5,110 Goodwill 7,042 Total assets acquired 12,863 Total current liabilities assumed (343 ) Fair value of assets acquired and liabilities assumed 12,520 Less: cash acquired (435 ) Total purchase price, net of cash acquired $ 12,085 Substantially all of the purchase price is 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, which approximates the pattern of use. Order backlog $ 50 18 months Customer relationships 1,430 8 years Exclusive patent license 2,600 10 years Trade names 210 10 years Developed technology 820 10 years Total $ 5,110 The fair value of the acquired intangibles was determined using the income approach. The Precisive acquisition resulted in a purchase price that exceeded the estimated fair value of tangible and intangible assets, the excess amount of which was allocated to goodwill. The Company believes 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; (2) potential to leverage the Company’s sales force and intellectual property to attract new customers and revenue; and (3) potential to strengthen and expand into new but complementary markets, including targeting new applications such as natural gas processing, hydrocarbon processing and other oil and gas segments. The results of this acquisition were included in the Company’s consolidated operations beginning on March 17, 2015. Precisive is included in the Company’s Instruments, Control and Vacuum Products group within the Vacuum & Analysis Division segment.

Investments

Investments	9 Months Ended
	Sep. 30, 2016
Investments, Debt and Equity Securities [Abstract]
Investments	4) Investments Investments classified as short-term consists of the following: September 30, 2016 December 31, 2015 Available-for-sale investments: Time deposits and certificates of deposit $ 1,395 $ 11,892 Bankers’ acceptance drafts 2,487 728 Asset-backed securities 18,326 124,997 Commercial paper 2,793 — Corporate obligations 16,701 165,109 Municipal bonds 593 8,355 U.S. treasury obligations 1,152 — U.S. agency obligations 9,657 119,582 $ 53,104 $ 430,663 Investments classified as long-term consists of the following: September 30, 2016 December 31, 2015 Available-for-sale investments: Group insurance contracts $ 5,956 $ — Cost method investments: Minority interest in Reno Sub-Systems, Inc. 9,300 — $ 15,256 $ — The following tables show the gross unrealized gains and (losses) aggregated by investment category for short-term and long-term available-for-sale investments: As of September 30, 2016: Cost Gross Gross Estimated Short-term investments: Available-for-sale investments: Time deposits and certificates of deposit $ 1,395 $ — $ — $ 1,395 Bankers’ acceptance drafts 2,487 — — 2,487 Asset-backed securities 18,317 13 (4 ) 18,326 Commercial paper 2,794 — (1 ) 2,793 Corporate obligations 16,699 15 (13 ) 16,701 Municipal bonds 592 1 — 593 U.S. treasury obligations 1,151 1 — 1,152 U.S. agency obligations 9,653 4 — 9,657 $ 53,088 $ 34 $ (18 ) $ 53,104 As of September 30, 2016: Cost Gross Gross Estimated Long-term investments: Available-for-sale investments: Group insurance contracts $ 5,988 $ — $ (32 ) $ 5,956 As of December 31, 2015: Cost Gross Gross Estimated Short-term investments: Available-for-sale investments: Time deposits and certificates of deposit $ 11,893 $ — $ (1 ) $ 11,892 Bankers’ acceptance drafts 728 — — 728 Asset-backed securities 125,271 — (274 ) 124,997 Corporate obligations 165,445 5 (341 ) 165,109 Municipal bonds 8,346 13 (4 ) 8,355 U.S. agency obligations 119,699 3 (120 ) 119,582 $ 431,382 $ 21 $ (740 ) $ 430,663 The tables above, which show the gross unrealized gains and (losses) aggregated by investment category for available-for-sale investments as of September 30, 2016 and December 31, 2015, reflect the inclusion within short-term investments of investments with contractual maturities greater than one year from the date of purchase. Management has the ability, if necessary, to liquidate any of its investments in order to meet the Company’s liquidity needs in the next 12 months. Accordingly, those investments with contractual maturities greater than one year from the date of purchase are classified as short-term investments on the accompanying balance sheet. 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. Realized gains or losses are reflected in income and were not material for the three and nine months ended September 30, 2016 and 2015.

Fair Value Measurements

Fair Value Measurements	9 Months Ended
	Sep. 30, 2016
Fair Value Disclosures [Abstract]
Fair Value Measurements	5) 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 assessed 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, the Company categorizes such assets and liabilities based on the lowest level input that is significant to the fair value measurement in its entirety. The Company’s 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 or liability. Assets and liabilities of the Company are measured at fair value on a recurring basis as of September 30, 2016 and are summarized as follows: Fair Value Measurements at Reporting Date Using Description September 30, Quoted Prices in Significant Significant Assets: Cash equivalents: Money market funds $ 10,105 $ 10,105 $ — $ — Time deposits and certificates of deposit 1,000 — 1,000 Bankers’ acceptance drafts 936 — 936 — Commercial paper 2,845 — 2,845 — U.S. agency obligations 650 — 650 — Restricted cash – money market funds 5,931 5,931 — — Available-for-sale investments: Time deposits and certificates of deposit 1,395 — 1,395 — Bankers’ acceptance drafts 2,487 — 2,487 — Asset-backed securities 18,326 — 18,326 — Commercial paper 2,793 — 2,793 — Corporate obligations 16,701 — 16,701 — Municipal bonds 593 — 593 — U.S. treasury obligations 1,152 — 1,152 — U.S. agency obligations 9,657 — 9,657 — Group insurance contracts 5,956 — 5,956 — Derivatives – currency forward contracts 250 — 250 — Derivatives – option contracts 72 — 72 — Funds in investments and other assets: Israeli pension assets 13,779 — 13,779 — Restricted cash – non-current 245 245 — Total assets $ 94,873 $ 16,281 $ 78,592 $ — Liabilities: Derivatives – currency forward contracts $ 3,030 $ — $ 3,030 $ — Derivatives – option contracts 17 — 17 — Total liabilities $ 3,047 $ — $ 3,047 $ — Reported as follows: Assets: Cash and cash equivalents (1) $ 15,536 $ 10,105 $ 5,431 $ — Restricted cash 5,931 5,931 — — Short-term investments 53,104 — 53,104 — Other current assets 322 — 322 — Total current assets $ 74,893 $ 16,036 $ 58,857 $ — Long-term investments (2) $ 5,956 $ — $ 5,956 $ — Other long-term assets 13,779 — 13,779 — Restricted cash – non-current 245 245 — — Total long-term assets 19,980 245 19,735 — Liabilities: Other current liabilities $ 3,047 $ — $ 3,047 $ — (1) The cash and cash equivalents amounts presented in the table above do not include cash of $349,885 and non-negotiable time deposits of $1,453 as of September 30, 2016. (2) The long-term investments presented in the table above do not include our investment in Reno Sub-Systems, Inc., which is accounted for under the cost method. Assets and liabilities of the Company are measured at fair value on a recurring basis as of December 31, 2015 and are summarized as follows: Fair Value Measurements at Reporting Date Using Description December 31, 2015 Quoted Prices in Significant Significant Assets: Cash equivalents: Money market funds $ 106,099 $ 106,099 $ — $ — Bankers’ acceptance drafts 11 — 11 — Corporate obligations 330 — 330 — Available-for-sale investments: Time deposits and certificates of deposit 11,892 — 11,892 — Bankers’ acceptance drafts 728 — 728 — Asset-backed securities 124,997 — 124,997 — Corporate obligations 165,109 — 165,109 — Municipal bonds 8,355 — 8,355 — U.S. agency obligations 119,582 — 119,582 — Derivatives – currency forward contracts 1,486 — 1,486 — Total assets $ 538,589 $ 106,099 $ 432,490 $ — Liabilities: Derivatives – currency forward contracts $ 263 $ — $ 263 $ — Reported as follows: Assets: Cash and cash equivalents (1) $ 106,440 $ 106,099 $ 341 $ — Short-term investments 430,663 — 430,663 — Other current assets 1,486 — 1,486 — Total current assets $ 538,589 $ 106,099 $ 432,490 $ — Liabilities: Other current liabilities $ 263 $ — $ 263 $ — (1) The cash and cash equivalents amounts presented in the table above do not include cash of $110,118 and non-negotiable time deposits of $11,016 as of December 31, 2015. Money Market Funds Money market funds are recorded as cash and cash equivalents and are classified within Level 1 of the fair value hierarchy. Restricted Cash The Company has letters of credit, which require it to maintain specified cash deposit balances, consisting mainly of money market funds, as collateral. Such amounts have been classified as restricted cash and are classified as Level 1. Available-For-Sale Investments As of September 30, 2016, available-for-sale investments consisted of time deposits and drafts denominated in the Euro currency, certificates of deposit, bankers’ acceptance drafts, asset-backed securities (which include auto loans, credit card receivables and equipment trust receivables), corporate obligations, municipal bonds, U.S. treasury obligations, U.S. agency obligations and group insurance contracts. 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. Israeli Pension Assets Israeli pension assets represent investments in mutual funds, government securities and other time deposits. These investments are set aside for the retirement benefit of the employees at the Company’s Israeli subsidiaries. These funds are classified within 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 are usually large commercial banks. The forward foreign currency exchange and option contracts are valued using broker quotations, or market transactions and are classified within Level 2 of the fair value hierarchy.

Derivatives

Derivatives	9 Months Ended
	Sep. 30, 2016
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Derivatives	6) Derivatives The Company entered 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 and foreign currency option 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, for which 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. Interest Rate Swap Agreement On September 30, 2016, the Company entered into an interest rate swap agreement to fix the rate on approximately 50% of its remaining outstanding term loan balance, as described further in Note 11. This cash flow hedge fixes the interest rate paid on the hedged debt at 1.198% per annum plus the credit spread of 3.50% through September 30, 2020. The interest rate swap will be recorded at fair value on the balance sheet and changes in the fair value will be recognized in other comprehensive income (loss) (“OCI”). To the extent that this arrangement is no longer an effective hedge, any ineffectiveness measured in the hedging relationship is recorded currently in earnings in the period it occurs. The notional amount of this transaction was $335,000 at September 30, 2016. Foreign Exchange Contracts 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, Euro and Taiwanese 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 will be recorded currently in earnings in the period in which 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. The Company also enters into forward exchange contracts to hedge certain balance sheet amounts and foreign currency option contracts related to the Israeli Shekel. To the extent the hedge accounting criteria is not met, the related foreign currency forward contracts and foreign currency option 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 September 30, 2016 and December 31, 2015, the Company had outstanding forward foreign exchange contracts with gross notional values of $41,471 and $89,989, respectively. The following tables provide a summary of the primary net hedging positions and corresponding fair values held as of September 30, 2016 and December 31, 2015: September 30, 2016 Currency Hedged (Buy/Sell) Gross Notional Fair Value (1) U.S. Dollar/Japanese Yen $ 13,213 $ (1,876 ) U.S. Dollar/South Korean Won 18,150 (930 ) U.S. Dollar/Euro 3,969 (14 ) U.S. Dollar/U.K. Pound Sterling 1,461 207 U.S. Dollar/Taiwan Dollar 4,678 (167 ) Total $ 41,471 $ (2,780 ) (1) Represents the fair value of the net (liability) asset amount included in the condensed consolidated balance sheet. December 31, 2015 Currency Hedged (Buy/Sell) Gross Notional Fair Value (1) U.S. Dollar/Japanese Yen $ 26,848 $ (136 ) U.S. Dollar/South Korean Won 34,777 915 U.S. Dollar/Euro 10,987 19 U.S. Dollar/U.K. Pound Sterling 4,587 61 U.S. Dollar/Taiwan Dollar 12,790 364 Total $ 89,989 $ 1,223 (1) Represents the fair value of the net asset (liability) amount included in the condensed consolidated balance sheet. The following table provides a summary of the fair value amounts of the Company’s derivative instruments: September 30, 2016 December 31, 2015 Derivative assets: Forward exchange contracts $ 250 $ 1,486 Foreign currency option contracts 72 — Derivative liabilities: Forward exchange contracts (3,030 ) (263 ) Foreign currency option contracts (17 ) — Total net derivative (liabilities) assets (1) $ (2,725 ) $ 1,223 (1) The derivative asset of $322 and derivative liability of $3,047 are classified in other current assets and other current liabilities, respectively, in the condensed consolidated balance sheet as of September 30, 2016. The derivative asset of $1,486 and derivative liability of $263 are classified in other current assets and other current liabilities, respectively, in the condensed consolidated balance sheet as of December 31, 2015. These foreign exchange contracts are subject to a master netting agreement with one financial institution. However, the Company has elected to record these contracts on a gross basis in the balance sheet. The net amount of existing gains as of September 30, 2016 that the Company expects to reclassify from OCI into earnings within the next twelve months is immaterial. The following table provides a summary of the gains (losses) on derivatives designated as hedging instruments: Three Months Ended Nine Months Ended Derivatives Designated as Cash Flow Hedging Instruments 2016 2015 2016 2015 Forward exchange contracts: Net gain (loss) recognized in OCI (1) $ 326 $ 1,148 $ (3,107 ) $ (2,372 ) Net (loss) gain reclassified from accumulated OCI into income (2) $ (764 ) $ 857 $ (487 ) $ 2,766 (1) Net change in the fair value of the effective portion classified in OCI. (2) Effective portion classified in cost of products for the three and nine months ended September 30, 2016 and 2015. The tax effect of the gains or losses reclassified from accumulated OCI into income is immaterial. As of September 30, 2016, the Company had outstanding foreign currency option contracts related to the Israeli Shekel with gross notional values of $(476) and a net fair value asset of $55. These instruments do not qualify for hedge accounting. The following table provides a summary of the (losses) and gains on derivatives not designated as hedging instruments: Three Months Ended Nine Months Ended Derivatives Not Designated as Hedging Instruments 2016 2015 2016 2015 Forward exchange contracts: Net (loss) gain recognized in income (1) $ (339 ) $ 116 $ (1,283 ) $ 1,331 Foreign currency option contracts: Net (loss) gain recognized in income (1) $ (63 ) $ — $ 52 $ — (1) The Company enters into foreign exchange contracts to hedge against changes in the balance sheet for certain subsidiaries and also enters into foreign currency option contracts to mitigate the risk associated with certain foreign currency transactions in the ordinary course of business. These derivatives are not designated as hedging instruments and gains or losses from these derivatives are recorded immediately in selling, general and administrative expenses.

Inventories

Inventories	9 Months Ended
	Sep. 30, 2016
Inventory Disclosure [Abstract]
Inventories	7) Inventories Inventories consist of the following: September 30, 2016 December 31, 2015 Raw materials $ 100,691 $ 78,352 Work-in-process 94,679 23,297 Finished goods 83,595 50,982 $ 278,965 $ 152,631

Goodwill and Intangible Assets

Goodwill and Intangible Assets	9 Months Ended
	Sep. 30, 2016
Goodwill and Intangible Assets Disclosure [Abstract]
Goodwill and Intangible Assets	8) Goodwill and Intangible Assets Goodwill The Company’s methodology for allocating the purchase price relating to purchase acquisitions is determined through established and generally accepted valuation techniques. Goodwill is measured as the excess of the cost of the acquisition over the sum of the amounts assigned to tangible and identifiable intangible assets acquired less liabilities assumed. The Company assigns assets acquired (including goodwill) and liabilities assumed to one or more reporting units as of the date of acquisition. Typically acquisitions relate to a single reporting unit and thus do not require the allocation of goodwill to multiple reporting units. If the products obtained in an acquisition are assigned to multiple reporting units, the goodwill is distributed to the respective reporting units as part of the purchase price allocation process. Goodwill and purchased intangible assets with indefinite useful lives are not amortized, but are reviewed for impairment annually during the fourth quarter of each fiscal year and whenever events or changes in circumstances indicate that the carrying value of an asset may not be recoverable. The process of evaluating the potential impairment of goodwill and intangible assets requires significant judgment. The Company regularly monitors current business conditions and other factors including, but not limited to, adverse industry or economic trends, restructuring actions and lower projections of profitability that may impact future operating results. The changes in the carrying amount of goodwill and accumulated impairment (loss) during the nine months ended September 30, 2016 and year ended December 31, 2015 were as follows: Nine Months Ended September 30, Twelve Months Ended December 31, 2016 2015 Gross Accumulated Net Gross Accumulated Net Beginning balance at January 1 $ 339,117 $ (139,414 ) $ 199,703 $ 331,795 $ (139,414 ) $ 192,381 Acquired goodwill (1) 396,216 — 396,216 8,017 — 8,017 Foreign currency translation (1,284 ) — (1,284 ) (695 ) — (695 ) Ending balance at September 30, 2016 and December 31, 2015 $ 734,049 $ (139,414 ) $ 594,635 $ 339,117 $ (139,414 ) $ 199,703 (1) During 2016, the Company recorded $396,216 of goodwill related to the Newport Merger. During 2015, the Company recorded $7,042 of goodwill related to the acquisition of Precisive. During 2015, the Company recorded a purchase accounting adjustment of $975 primarily related to an inventory valuation adjustment related to an acquisition that occurred in 2014. Intangible Assets Components of the Company’s intangible assets are comprised of the following: As of September 30, 2016: Gross Accumulated Foreign Currency Net Completed technology (1) $ 176,586 $ (89,912 ) $ (290 ) $ 86,384 Customer relationships (1) 280,344 (25,742 ) (954 ) 253,648 Patents, trademarks, trade names and other (1) 104,824 (31,899 ) (26 ) 72,899 In-process research and development (1) 6,899 — (19 ) 6,880 $ 568,653 $ (147,553 ) $ (1,289 ) $ 419,811 As of December 31, 2015: Gross Accumulated Foreign Currency Net Completed technology (2) $ 101,200 $ (82,330 ) $ (272 ) $ 18,598 Customer relationships (2) 37,251 (16,345 ) 10 20,916 Patents, trademarks, trade names and other (2) 30,396 (25,888 ) 5 4,513 $ 168,847 $ (124,563 ) $ (257 ) $ 44,027 (1) During 2016, the Company recorded $399,806 of separately identified intangible assets related to the Newport Merger, of which $75,386 was completed technology, $243,093 was customer relationships, $74,428 was patents, trademarks, trade names and other, and $6,899 was in-process research and development. The Company also recorded $4,302 of unfavorable lease commitments, which is recorded in other liabilities in the balance sheet. (2) During 2015, the Company recorded $5,110 of separately identified intangible assets related to the acquisition of Precisive, of which $820 was completed technology, $1,430 was customer relationships and $2,860 was patents, trademarks, trade names and other. Aggregate amortization expense related to acquired intangibles for the three and nine months ended September 30, 2016 was $12,452 and $22,990, respectively. Aggregate amortization expense related to acquired intangibles for the three and nine months ended September 30, 2015 was $1,691 and $5,071, respectively. Estimated amortization expense for each of the remaining fiscal years is as follows: Year Amount 2016 (remaining) $ 12,605 2017 42,335 2018 38,287 2019 38,244 2020 34,270 2021 27,276 Thereafter 170,894

Other Assets

Other Assets	9 Months Ended
	Sep. 30, 2016
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]
Other Assets	9) Other Assets September 30, 2016 December 31, 2015 Other Current Assets: Income tax receivable $ 7,754 $ 8,682 Prepaid income tax 10,825 4,755 Other 35,037 13,323 Total other current assets $ 53,616 $ 26,760 Other Assets: Deferred tax assets, net $ 3,025 $ 19,252 Other 26,901 1,998 Total other assets $ 29,926 $ 21,250

Other Liabilities

Other Liabilities	9 Months Ended
	Sep. 30, 2016
Other Liabilities Disclosure [Abstract]
Other Liabilities	10) Other Liabilities September 30, 2016 December 31, 2015 Other Current Liabilities: VAT payable $ 6,004 $ 3,075 Customer prepayments 4,349 1,741 Product warranties 8,083 5,205 Deferred revenue 14,704 7,189 Other 40,214 18,149 Total other current liabilities $ 73,354 $ 35,359 Other Liabilities: Long-term income tax payable $ 14,140 $ 4,483 Other 5,816 949 Total other liabilities $ 19,956 $ 5,432

Debt

Debt	9 Months Ended
	Sep. 30, 2016
Debt Disclosure [Abstract]
Debt	11) Debt Term Loan Credit Agreement In connection with the completion of the Newport Merger, the Company entered into a term loan credit agreement (the “Credit Agreement”) with Barclays Bank PLC, as administrative agent and collateral agent, and the lenders from time to time party thereto (the “Lenders”), that provided senior secured financing of $780,000, subject to increase at the Company’s option in accordance with the Credit Agreement (the “Term Loan Facility”). Borrowings under the Term Loan Facility bear interest per annum at one of the following rates selected by the Company: (a) a base rate determined by reference to the highest of (1) the federal funds effective rate plus 0.50%, (2) the “prime rate” quoted in The Wall Street Journal, (3) a LIBOR rate determined by reference to the costs of funds for U.S. dollar deposits for an interest period of one month adjusted for certain additional costs, plus 1.00%, and (4) a floor of 1.75%, plus, in each case, an applicable margin of 3.00%; or (b) a LIBOR rate determined by reference to the costs of funds for U.S. dollar deposits for the interest period relevant to such borrowing adjusted for certain additional costs, subject to a LIBOR rate floor of 0.75%, plus an applicable margin of 4.00%. The Company has elected the interest rate as described in clause (b). The Term Loan Facility was issued with original issue discount of 1.00% of the principal amount thereof. The term loans are prepayable in whole or in part from time to time, and were initially subject to a prepayment premium if a prepayment was to be made on or prior to October 29, 2016 and only in certain circumstances. The Company will be obligated to pay a prepayment fee equal to 1.00% of the amount of the term loans outstanding immediately prior to any amendment resulting in a repricing transaction. On June 9, 2016, the Company entered into Amendment No. 1 (the “Repricing Amendment”) to the Credit Agreement by and among the Company, the Lenders and Barclays Bank PLC, as administrative agent and collateral agent for the Lenders. The Repricing Amendment decreased the applicable margin for borrowings under the Company’s Term Loan Facility to 2.50% for base rate borrowings and 3.50% for LIBOR borrowings and extended the period during which a prepayment premium may be required for a “Repricing Transaction” (as defined in the Credit Agreement) until six months after the effective date of the Repricing Amendment. In connection with the execution of the Repricing Amendment, the Company paid a prepayment premium of 1.00%, or $7,300, as well as certain fees and expenses of the administrative agent and the Lenders, in accordance with the terms of the Credit Agreement. Immediately prior to the effectiveness of the Repricing Amendment, the Company prepaid $50,000 of principal under the Credit Agreement. On September 29, 2016, the Company made another voluntary prepayment of $60,000 of principal under the Credit Agreement. This prepayment was in addition to a scheduled principal payment of $1,825. As a result, the outstanding principal amount of the term loan was $668,175 as of September 30, 2016. On September 30, 2016, the Company entered into an interest rate swap agreement, which has a maturity date of September 30, 2020, to fix the rate on $335,000 of the outstanding balance of the Credit Agreement. The rate is fixed at 1.198% per annum plus the credit spread of 3.50%. The Company incurred $28,747 of deferred finance fees, original issue discount and a repricing fee related to the term loans, which are included in long-term debt in the accompanying consolidated balance sheets and will be amortized to interest expense over the estimated life of the term loans using the effective interest method. Under the Credit Agreement, the Company is required to prepay outstanding term loans, subject to certain exceptions, with portions of its annual excess cash flow as well as with the net cash proceeds of certain asset sales, certain casualty and condemnation events and the incurrence or issuance of certain debt. The Company is also required to make scheduled quarterly payments each equal to 0.25% of the original principal amount of the term loans made on the closing date with such original principal amount reduced by any such prepayments (including the $110,000 prepaid to date in 2016), with the balance due on the seventh anniversary of the closing date. All obligations under the Term Loan Facility are guaranteed by certain of the Company’s domestic subsidiaries, and are secured by substantially all of the Company’s assets and the assets of such subsidiaries, subject to certain exceptions and exclusions. The Credit Agreement contains customary representations and warranties, affirmative and negative covenants and provisions relating to events of default. If an event of default occurs, the Lenders under the Term Loan Facility will be entitled to take various actions, including the acceleration of amounts due under the Term Loan Facility and all actions generally permitted to be taken by a secured creditor. At September 30, 2016, the Company is in compliance with all covenants under the Credit Agreement. Senior Secured Asset-Based Revolving Credit Facility In connection with the completion of the Newport Merger, the Company also entered into an asset-based credit agreement with Deutsche Bank AG New York Branch, as administrative agent and collateral agent, the other borrowers from time to time party thereto, and the lenders and letters of credit issuers from time to time party thereto (the “ABL Facility”), that provides senior secured financing of up to $50,000, subject to a borrowing base limitation. The borrowing base for the ABL Facility at any time equals the sum of: (a) 85% of certain eligible accounts; plus (b) subject to certain notice and field examination and appraisal requirements, the lesser of (i) the lesser of (A) 65% of the lower of cost or market value of certain eligible inventory and (B) 85% of the net orderly liquidation value of certain eligible inventory and (ii) 30% of the borrowing base; minus (c) reserves established by the administrative agent; provided that until the administrative agent’s receipt of a field examination of accounts receivable the borrowing base shall be equal to 70% of the book value of certain eligible accounts. The ABL Facility includes borrowing capacity in the form of letters of credit up to $15,000. The Company has not drawn against the ABL Facility. Borrowings under the ABL Facility bear interest per annum at one of the following rates selected by the Company: (a) a base rate determined by reference to the highest of (1) the federal funds effective rate plus 0.50%, (2) the “prime rate” quoted in the The Wall Street Journal, and (3) a LIBOR rate determined by reference to the costs of funds for U.S. dollar deposits for an interest period of one month adjusted for certain additional costs, plus 1.00%, plus, in each case, an initial applicable margin of 0.75%; and (b) a LIBOR rate determined by reference to the costs of funds for U.S. dollar deposits for the interest period relevant to such borrowing adjusted for certain additional costs, plus an initial applicable margin of 1.75%. Commencing with the completion of the first fiscal quarter ending after the closing of the ABL Facility, the applicable margin for borrowings thereunder is subject to upward or downward adjustment each fiscal quarter, based on the average historical excess availability during the preceding quarter. The Company incurred $1,201 of costs in connection with the ABL Facility, which were capitalized and included in other assets in the accompanying consolidated balance sheets and will be amortized to interest expense using the straight-line method over the contractual term of five years of the ABL Facility. In addition to paying interest on outstanding principal under the ABL Facility, the Company is required to pay a commitment fee in respect of the unutilized commitments thereunder. The initial commitment fee is 0.375% per annum. Commencing with the completion of the first fiscal quarter ending after the closing of the ABL Facility, the commitment fee is subject to downward adjustment based on the amount of average unutilized commitments for the three-month period immediately preceding such adjustment date. The Company must also pay customary letter of credit fees and agency fees. Lines of Credit and Short-Term Borrowing Arrangements One of the Company’s Japanese subsidiaries has lines of credit and short-term borrowing arrangements with two financial institutions which arrangements generally expire and are renewed at three-month intervals. The lines of credit provided for aggregate borrowings as of September 30, 2016 of up to an equivalent of $22,763 U.S. dollars. One of the borrowing arrangements has an interest rate based on the Tokyo Interbank Offer Rate at the time of borrowing and the other has an interest rate based on the Japanese Short-term Prime Lending Rate. There were no borrowings outstanding under these arrangements at September 30, 2016 and December 31, 2015. The Company assumed various revolving lines of credit and a financing facility with the completion of the Newport Merger. These revolving lines of credit and financing facility have no expiration date and provided for aggregate borrowings as of September 30, 2016 of up to an equivalent of $9,897 U.S. dollars. These lines of credit have a base interest rate of 1.25% plus a Japanese Yen overnight LIBOR rate. One of the Company’s Austrian subsidiaries has four outstanding loans from the Austrian government to fund research and development. These loans are unsecured and do not require principal repayment as long as certain conditions are met. Interest on these loans is payable semi-annually. The interest rates associated with these loans range from 0.75% - 2.00%. Short-term debt: September 30, 2016 Japanese lines of credit $ 3,958 Japanese receivables financing facility 252 Other debt 18 Current portion of Term Loan Facility 7,300 $ 11,528 Long-term debt: September 30, 2016 Austrian loans due through March 2020 $ 587 Term Loan Facility, net (1) 638,481 $ 639,068 (1) Net of deferred financing fees, original issuance discount and repricing fees of $22,394. For the three and nine months ended September 30, 2016, the Company recognized interest expense of $8,461 and $11,989, respectively, related to the Term Loan Facility. Contractual maturities of the Company’s debt obligations as of September 30, 2016 are as follows: Year Amount 2016 (remaining) $ 6,054 2017 7,404 2018 7,312 2019 7,726 2020 7,344 2021 7,300 Thereafter 629,850

Product Warranties

Product Warranties	9 Months Ended
	Sep. 30, 2016
Guarantees [Abstract]
Product Warranties	12) Product Warranties The Company records 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 condensed consolidated balance sheet. Product warranty activities were as follows: Nine Months Ended September 30, 2016 2015 Beginning of period $ 5,205 $ 6,266 Product warranty liability from Newport Merger 3,040 — Provision for product warranties 5,067 3,527 Direct charges to warranty liability (5,213 ) (3,859 ) Foreign currency translation 43 (97 ) End of period (1) $ 8,142 $ 5,837 (1) Short-term product warranty of $8,083 and long-term product warranty of $59 are included in other current liabilities and other liabilities, respectively, in the accompanying condensed consolidated balance sheet.

Pension Plans

Pension Plans	9 Months Ended
	Sep. 30, 2016
Compensation and Retirement Disclosure [Abstract]
Pension Plans	13) Pension Plans As a result of the Newport Merger, the Company has assumed all assets and liabilities of Newport’s defined benefit pension plans, which cover substantially all of its full-time employees in France, Germany, Israel and Japan. In addition, there are certain pension liabilities relating to former employees in the United Kingdom. The German plan is unfunded, as permitted under the plan and applicable laws. For financial reporting purposes, the calculation of net periodic pension costs was based upon a number of actuarial assumptions including a discount rate for plan obligations, an assumed rate of return on pension plan assets and an assumed rate of compensation increase for employees covered by the plan. All of these assumptions were based upon management’s judgment, considering all known trends and uncertainties. Actual results that differ from these assumptions would impact future expense recognition and the cash funding requirements of the Company’s pension plans. The Company has included the net periodic benefit costs for the plans from the date of the acquisition on April 29, 2016 through September 30, 2016. The net periodic benefit costs included the following components: Three months ended Nine months ended Service cost $ 596 $ 1,000 Interest cost on projected benefit obligation 121 201 Expected return on plan assets (44 ) (75 ) $ 673 $ 1,126

Income Taxes

Income Taxes	9 Months Ended
	Sep. 30, 2016
Income Tax Disclosure [Abstract]
Income Taxes	14) Income Taxes The Company’s effective tax rate for the three and nine months ended September 30, 2016 was 23.0% and 24.4%, respectively. The effective tax rate for the three and nine months ended September 30, 2016 was lower than the U.S. statutory tax rate primarily due to the geographic mix of income and profits earned by the Company’s international subsidiaries being taxed at rates lower than the U.S. statutory tax rate, the federal research credit and the deduction for domestic production activities. These amounts were partially offset by taxes paid on the Company’s reorganization of certain international subsidiaries and state income taxes. The Company’s effective tax rate for the three and nine months ended September 30, 2015 was 29.3% and 29.1%, respectively. The effective tax rate for the three and nine months ended September 30, 2015 was lower than the U.S. statutory tax rate primarily due to the geographic mix of income and profits earned by the Company’s international subsidiaries being taxed at rates lower than the U.S. statutory tax rate and the deduction for domestic production activities. As of September 30, 2016, the total amount of gross unrecognized tax benefits, which excludes interest and penalties, was approximately $30,567. At December 31, 2015, the total amount of gross unrecognized tax benefits, which excludes interest and penalties, was approximately $4,332. The net increase from December 31, 2015 was primarily attributable to the addition of historical gross unrecognized tax benefits for Newport which were included as a result of the acquisition in April 2016. As of September 30, 2016, if these gross unrecognized tax benefits were recognized in a future period, the timing of which is not estimable, the net unrecognized tax benefit of $19,399, 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. As of September 30, 2016 and December 31, 2015, the Company had accrued interest on unrecognized tax benefits of approximately $738 and $157, respectively. Over the next 12 months it is reasonably possible that the Company may recognize approximately $3,370 of previously net unrecognized tax benefits, excluding interest and penalties, related to various U.S. federal, state and foreign tax positions primarily as a result of the expiration of certain statutes of limitations. The Company and its subsidiaries are subject to examination by U.S. federal, state and foreign tax authorities. The United States Internal Revenue Service commenced an examination of the Company’s U.S. federal tax filings for tax years 2011 through 2013 during the quarter ended March 31, 2015. The audit was effectively settled during the three months ended December 31, 2015 upon the Company’s acceptance of the income tax examination changes. As part of the audit, the Company consented to extend the U.S. statute of limitations for tax year 2011 until September 30, 2016. The U.S. statute of limitations remains open for tax years 2013 through present. The statute of limitations for the Company’s tax filings in other jurisdictions varies between fiscal years 2007 through present. The Company also has certain federal credit carry-forwards and state tax loss and credit carry-forwards that are open for examination for tax years 2000 through present.

Interest and Other (Expense) In

Interest and Other (Expense) Income, Net	9 Months Ended
	Sep. 30, 2016
Other Income and Expenses [Abstract]
Interest and Other (Expense) Income, Net	15) Interest and Other (Expense) Income, Net Three Months Ended Nine Months Ended 2016 2015 2016 2015 Interest income $ 404 $ 778 $ 1,859 $ 2,147 Other income 1,544 — 1,583 — Interest expense (12,007 ) (57 ) (20,527 ) (132 ) Impact of foreign exchange (expense) income (701 ) — 753 — Interest and other (expense) income, net $ (10,760 ) $ 721 $ (16,332 ) $ 2,015 In 2016, the Company reclassified the impact of foreign exchange income (expense) from selling, general and administrative expenses to interest and other (expense) income, net. The amount included in selling, general and administrative expenses for the three and nine months ended September 30, 2015 was expense of $836 and $288, respectively.

Net Income Per Share

Net Income Per Share	9 Months Ended
	Sep. 30, 2016
Earnings Per Share [Abstract]
Net Income Per Share	16) Net Income Per Share The following table sets forth the computation of basic and diluted net income per share: Three Months Ended September 30, Nine Months Ended September 30, 2016 2015 2016 2015 Numerator: Net income $ 32,549 $ 29,769 $ 59,322 $ 96,775 Denominator: Shares used in net income per common share – basic 53,574,000 53,314,000 53,423,000 53,304,000 Effect of dilutive securities: Stock options, restricted stock, stock appreciation rights and employee stock purchase plan 741,000 254,000 472,000 258,000 Shares used in net income per common share – diluted 54,315,000 53,568,000 53,895,000 53,562,000 Net income per common share: Basic $ 0.61 $ 0.56 $ 1.11 $ 1.82 Diluted $ 0.60 $ 0.56 $ 1.10 $ 1.81 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, restricted stock units and stock appreciation rights) had been converted to such common shares, and if such assumed conversion is dilutive.

Stockholder's Equity

Stockholder's Equity	9 Months Ended
	Sep. 30, 2016
Equity [Abstract]
Stockholder's Equity	17) Stockholder’s Equity Stock Repurchase Program 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 depends upon a variety of factors, including business conditions, stock market conditions, debt agreement limitations 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. We have repurchased approximately 1,770,000 shares of our common stock for approximately $52,000 pursuant to the program since its adoption. During the nine months ended September 30, 2016, the Company repurchased approximately 45,000 shares of its common stock for $1,545, or an average price of $34.50 per share. During the nine months ended September 30, 2015, the Company repurchased approximately 244,000 shares of its common stock for $8,866, or an average price of $36.32 per share. Cash 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 the nine months ended September 30, 2016, the Company’s Board of Directors declared a cash dividend of $0.17 per share in the first, second and third quarters of 2016, which totaled $27,249. During the nine months ended September 30, 2015, the Company’s Board of Directors declared a cash dividend of $0.165 per share in the first quarter of 2015 and a cash dividend of $0.17 per share in the second and third quarters of 2015, which dividends totaled $26,928. On October 24, 2016, the Company’s Board of Directors declared a quarterly cash dividend of $0.17 per share to be paid on December 9, 2016 to shareholders of record as of November 28, 2016. 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.

Stock-Based Compensation

Stock-Based Compensation	9 Months Ended
	Sep. 30, 2016
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Stock-Based Compensation	18) Stock-Based Compensation In connection with the completion of the Newport Merger, the Company assumed: • all restricted stock units (“RSUs”) granted under any Newport equity plan that were outstanding immediately prior to the effective time of the Newport Merger, and as to which shares of Newport common stock were not fully distributed in connection with the closing of the Newport Merger, and • all stock appreciation rights granted under any Newport equity plan, whether vested or unvested, that were outstanding immediately prior to the effective time of the Newport Merger. As of the effective time of the Newport Merger, based on a formula provided in the Merger Agreement, (a) the Newport RSUs were converted automatically into RSUs with respect to 360,674 shares of the Company’s common stock (the “Assumed RSUs”), and (b) the Newport stock appreciation rights were converted automatically into stock appreciation rights with respect to 899,851 shares of the Company’s common stock (the “Assumed SARs”). Included in the total number of Assumed RSUs were 36,599 RSUs for outside directors that were part of the Newport Deferred Compensation Plan (the “DC Plan”), from which 19,137 underlying shares were released in May 2016. As of September 30, 2016, 17,462 RSUs remained outstanding under the DC Plan, and an additional 136 shares were added to the DC Plan due to reinvested dividends. These Assumed RSUs will not become issued shares until their respective release dates. The shares of the Company’s common stock that are subject to the Assumed SARs and the Assumed RSUs are issuable pursuant to the Company’s 2014 Stock Incentive Plan (the “Plan”). The 1,260,525 shares of the Company’s common stock that are issuable pursuant to the Assumed RSUs and the Assumed SARs under the Plan were registered under the Securities Act of 1933, as amended (the “Securities Act”), on a registration statement on Form S-8. These shares are in addition to the 18,000,000 shares of the Company’s common stock reserved for issuance under the Plan and previously registered under the Securities Act on a registration statement on Form S-8. During the nine months ended September 30, 2016, the Company granted 740,985 RSUs with a weighted average grant date fair value of $35.51 and the Company did not grant any stock appreciation rights. The total stock-based compensation expense included in the Company’s consolidated statements of income and comprehensive income was as follows: Three Months Ended Nine Months Ended 2016 2015 2016 2015 Cost of revenues $ 666 $ 432 $ 1,996 $ 1,489 Research and development expense 551 405 1,614 1,255 Selling, general and administrative expense 3,941 2,410 16,216 7,281 Total pre-tax stock-based compensation expense $ 5,158 $ 3,247 $ 19,826 $ 10,025 At September 30, 2016, the total compensation expense related to unvested stock-based awards granted to employees, officers and directors under the Company’s stock–based compensation plan that had not been recognized was $29,283, net of estimated forfeitures. The future compensation expense is recognized on a straight-line basis over the requisite service period, 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 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. The following table presents the activity for RSUs under the Plan: Nine Months Ended September 30, 2016 Non-vested RSUs Weighted Average Non-vested RSUs – beginning of period 733,162 $ 30.94 Assumed RSUs from Newport Merger 360,674 35.01 Accrued dividend shares 136 43.64 Granted 740,985 35.51 Vested (452,251 ) 31.18 Forfeited (55,474 ) 33.74 Non-vested RSUs – end of period 1,327,232 $ 34.40 For the three months ended September 30, 2016, there were approximately 529,000 and 213,000 weighted-average RSUs and stock appreciation rights, respectively, that would have an anti-dilutive effect on EPS, and would thus need to be excluded from the computation of diluted weighted-average shares. For the nine months ended September 30, 2016, there were approximately 401,000 and 181,000 weighted-average RSUs and stock appreciation rights, respectively, that would have an anti-dilutive effect on EPS, and would thus need to be excluded from the computation of diluted weighted-average shares. As of September 30, 2015, stock options and RSUs related to an aggregate of approximately 752,000 shares were outstanding. For the three and nine months ended September 30, 2015, there were no RSUs or stock options that were excluded from the computation of diluted weighted-average shares outstanding that would have had an anti-dilutive effect on EPS. At September 30, 2016, the Company’s outstanding and exercisable stock appreciation rights, the weighted-average base value, the weighted average remaining contractual life and the aggregate intrinsic value thereof, were as follows: Number Weighted Weighted Aggregate Stock appreciation rights outstanding 712,284 $ 27.86 4.1 $ 15,581 Stock appreciation rights exercisable 482,001 $ 26.52 3.5 $ 11,185

Business Segment, Geographic Ar

Business Segment, Geographic Area, Product and Significant Customer Information	9 Months Ended
	Sep. 30, 2016
Segment Reporting [Abstract]
Business Segment, Geographic Area, Product and Significant Customer Information	19) Business Segment, Geographic Area, Product and Significant Customer Information The Company 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. The Company also provides services relating to the maintenance and repair of products it sells, software maintenance, installation services and training. The Company’s Chief Operating Decision Maker (“CODM”) utilizes financial information to make decisions about allocating resources and assessing performance for the entire Company, which is used in the decision making process to assess performance. Based upon the information provided to the CODM, the Company has determined it has two reportable segments. Effective April 29, 2016, in conjunction with the Newport Merger, the Company changed its reportable segments based upon the organizational structure of the Company and how the CODM utilizes information provided to allocate resources and make decisions. The Company’s two reportable segments are the Vacuum & Analysis Division and the Light & Motion Division. The Vacuum & Analysis Division provides a broad range of instruments, components, subsystems and software which are derived from the Company’s core competencies in pressure measurement and control, flow measurement and control, gas and vapor delivery, gas composition analysis, residual gas analysis, leak detection, control and information technology, ozone generation and delivery, RF & DC power, reactive gas generation and vacuum technology. The Light & Motion Division provides a broad range of instruments, components and subsystems which are derived from the Company’s core competencies in lasers, photonics, sub-micron positioning, vibration isolation and optics. The Company derives its segment results directly from the manner in which results are reported in its management reporting system. The accounting policies that the Company uses to derive reportable segment results are substantially the same as those used for external reporting purposes. The Company does not disclose external or intersegment revenues separately by reportable segment as this information is not presented to the CODM for decision making purposes. The following is net revenues by reportable segment: Three Months Ended September 30, Nine Months Ended September 30, 2016 2015 2016 2015 Vacuum & Analysis Division $ 229,167 $ 209,332 $ 620,207 $ 641,137 Light & Motion Division 151,493 — 269,995 — $ 380,660 $ 209,332 $ 890,202 $ 641,137 The following is a reconciliation of segment gross profit to consolidated net income: Three Months Ended September 30, Nine Months Ended September 30, 2016 2015 2016 2015 Gross profit by reportable segment: Vacuum & Analysis Division $ 104,232 $ 94,229 $ 273,004 $ 290,073 Light & Motion Division 64,153 — 109,207 — Total gross profit by reportable segment 168,385 94,229 382,211 290,073 Operating expenses: Research and development 32,268 17,217 77,709 51,464 Selling, general and administrative 70,424 33,396 175,803 97,532 Acquisition costs 233 — 10,932 30 Restructuring — 562 24 1,569 Amortization of intangible assets 12,452 1,691 22,990 5,071 Income from operations 53,008 41,363 94,753 134,407 Interest and other (expense) income, net (10,760 ) 721 (16,332 ) 2,015 Income before income taxes 42,248 42,084 78,421 136,422 Provision for income taxes 9,699 12,315 19,099 39,647 Net income $ 32,549 $ 29,769 $ 59,322 $ 96,775 The following is capital expenditures by reportable segment for the three and nine months ended September 30, 2016 and 2015: Vacuum & Analysis Light & Motion Total Three Months Ended September 30, 2016: Capital expenditures $ 2,772 $ 1,923 $ 4,695 Nine Months Ended September 30, 2016: Capital expenditures $ 7,964 $ 3,995 $ 11,959 Vacuum & Analysis Light & Motion Total Three Months Ended September 30, 2015: Capital expenditures $ 3,497 $ — $ 3,497 Nine Months Ended September 30, 2015: Capital expenditures $ 8,831 $ — $ 8,831 The following is depreciation and amortization by reportable segment for the three and nine months ended September 30, 2016 and 2015: Vacuum & Analysis Light & Motion Total Three Months Ended September 30, 2016: Depreciation and amortization $ 5,142 $ 16,907 $ 22,049 Nine Months Ended September 30, 2016: Depreciation and amortization $ 15,628 $ 28,129 $ 43,757 Vacuum & Analysis Light & Motion Total Three Months Ended September 30, 2015: Depreciation and amortization $ 5,524 $ — $ 5,524 Nine Months Ended September 30, 2015: Depreciation and amortization $ 16,606 $ — $ 16,606 Total income tax expense is not presented by reportable segment because the necessary information is not available or used by the CODM. The following is segment assets by reportable segment: September 30, 2016 Vacuum & Analysis Light & Motion Corporate & Total Segment assets: Accounts receivable $ 136,654 $ 128,401 $ (21,202 ) $ 243,853 Inventory 161,219 117,746 — 278,965 Total segment assets $ 297,873 $ 246,147 $ (21,202 ) $ 522,818 December 31, 2015 Vacuum & Analysis Light & Motion Corporate & Total Segment assets: Accounts receivable $ 101,883 $ — $ — $ 101,883 Inventory 152,631 — — 152,631 Total segment assets $ 254,514 $ — $ — $ 254,514 A reconciliation of segment assets to consolidated total assets is as follows: September 30, 2016 December 31, 2015 Total segment assets $ 522,818 $ 254,514 Cash and cash equivalents and investments 435,234 658,237 Other current assets, including restricted cash 59,547 26,760 Property, plant and equipment, net 179,694 68,856 Goodwill and intangible assets, net 1,014,446 243,730 Other assets 29,926 21,250 Consolidated total assets $ 2,241,665 $ 1,273,347 Goodwill associated with the Company’s reportable segments is as follows: September 30, 2016 December 31, 2015 Reportable segment: Vacuum & Analysis Division $ 200,368 $ 199,703 Light & Motion Division 394,267 — Total goodwill $ 594,635 $ 199,703 Worldwide Product Information The Company groups its products into six groups of similar products based upon the similarity of product function. Worldwide net revenue for each group of products is as follows: Three Months Ended September 30, Nine Months Ended September 30, 2016 2015 2016 2015 Instruments, Control & Vacuum Products $ 114,491 $ 98,614 $ 317,141 $ 319,491 Power & Reactive Gas Products 98,827 95,311 259,797 276,787 Analytical Solutions Products 15,907 15,407 43,334 44,859 Photonics Products 62,226 — 108,090 — Optics Products 44,331 — 79,594 — Lasers Products 44,878 — 82,246 — $ 380,660 $ 209,332 $ 890,202 $ 641,137 Sales of Instruments, Control & Vacuum Products, Power & Reactive Gas Products and Analytical Solutions Products are included in the Company’s Vacuum & Analysis Division segment. Sales of Photonics Products, Optics Products and Lasers Products are included in the Light & Motion Division segment. Geographic 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. Three Months Ended September 30, Nine Months Ended September 30, 2016 2015 2016 2015 Net revenues: North America $ 198,305 $ 122,348 $ 460,994 $ 365,942 Korea 32,642 27,760 79,240 87,181 Japan 26,970 14,699 68,738 49,001 Asia (excluding Korea and Japan) 75,179 24,833 173,526 79,259 Europe 47,564 19,692 107,704 59,754 $ 380,660 $ 209,332 $ 890,202 $ 641,137 September 30, 2016 December 31, 2015 Long-lived assets: (1) North America $ 120,379 $ 56,594 Europe 30,818 5,783 Asia 50,551 8,952 $ 201,748 $ 71,329 (1) Long-lived assets include property, plant and equipment, net and certain other long-term assets, excluding long-term tax-related accounts. Major Customers The Company had two customers with net revenues greater than 10% of total net revenues in the periods shown as follows: Three Months Ended September 30, Nine Months Ended September 30, 2016 2015 2016 2015 Applied Materials, Inc. 12 % 18 % 14 % 18 % LAM Research Corporation 9 % 16 % 11 % 14 %

Commitments and Contingencies

Commitments and Contingencies	9 Months Ended
	Sep. 30, 2016
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies	20) Commitments and Contingencies On March 9, 2016, a putative class action lawsuit captioned Dixon Chung v. Newport Corp., et al Also on March 25, 2016, a second putative class action complaint captioned Hubert C. Pincon v. Newport Corp., et al. On April 14, 2016, the Court granted plaintiffs’ motion to consolidate the Pincon and Chung actions and appointed counsel in the Pincon action as lead counsel. Also on April 14, 2016, the Court granted plaintiffs’ motion for expedited discovery and scheduled a hearing on plaintiffs’ anticipated motion for a preliminary injunction for April 25, 2016. On April 20, 2016, plaintiffs filed a motion to vacate the hearing on their anticipated motion for a preliminary injunction and notified the Court that they did not presently intend to file a motion for a preliminary injunction regarding the Merger Agreement. On April 22, 2016, the Court vacated the hearing on plaintiffs’ anticipated motion for a preliminary injunction. In August, plaintiffs completed the expedited discovery that the Court ordered. On October 24, 2016, plaintiffs filed an amended complaint captioned In re Newport Corporation Shareholder Litigation The Company believes that the claims asserted in the amended complaint have no merit and the Company, Newport and the named directors intend to defend vigorously against these claims. The Company is subject to various other legal proceedings and claims, which have arisen in the ordinary course of business. In the Company’s opinion, 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.

Recently Issued Accounting Pr27

Recently Issued Accounting Pronouncements (Policies)	9 Months Ended
	Sep. 30, 2016
Accounting Changes and Error Corrections [Abstract]
Recently Issued Accounting Pronouncements	In August 2016, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update (“ASU”) 2016-15, “Statement of Cash Flows (Topic 230)-Classification of Certain Cash Receipts and Cash Payments.” This standard addresses eight specific cash flow issues with the objective of addressing the diversity in practice in how certain cash receipts and cash payments are presented and classified in the statement of cash flows under Topic 230. The provisions of this ASU are effective for annual periods beginning after December 15, 2017, including interim periods within those fiscal years. The Company is currently evaluating the requirements of this ASU and has not yet determined its impact on the Company’s consolidated financial statements. In March 2016, the FASB issued ASU 2016-09, “Compensation - Stock Compensation (Topic 718)—Improvements to Employee Share-Based Payment Accounting.” This standard simplifies several aspects of the accounting for share-based payment transactions, including the income tax consequences, classification of awards as either equity or liabilities, and classification on the statement of cash flows. The provisions of this ASU are effective for annual periods beginning after December 15, 2016, including interim periods within those fiscal years and early adoption is permitted. This ASU will be adopted in the first quarter of 2017 and could have a material impact on the Company’s consolidated financial statements In February 2016, the FASB issued ASU 2016-02, “Leases (Topic 842).” This standard requires the recognition of lease assets and liabilities for all leases, with certain exceptions, on the balance sheet. In transition, lessees and lessors are required to recognize and measure leases at the beginning of the earliest period presented using a modified retrospective approach. This ASU is effective for annual periods beginning after December 15, 2018, including interim periods within those fiscal years. The Company is currently evaluating the requirements of this ASU and has not yet determined its impact on the Company’s consolidated financial statements. In January 2016, the FASB issued ASU 2016-01, “Financial Instruments—Overall (Subtopic 825-10): Recognition and Measurement of Financial Assets and Financial Liabilities.” This ASU provides guidance for the recognition, measurement, presentation, and disclosure of financial instruments. The new pronouncement revises accounting related to equity investments and the presentation of certain fair value changes for financial assets and liabilities measured at fair value. Among other things, it amends the presentation and disclosure requirements of equity securities that do not result in consolidation and are not accounted for under the equity method. Changes in the fair value of these equity securities will be recognized directly in net income. This pronouncement is effective for annual periods beginning after December 15, 2017, including interim periods within those fiscal years. The Company does not expect adoption of this ASU to have a material impact on the Company’s consolidated financial statements. In July 2015, the FASB issued ASU 2015-11, “Inventory (Topic 330)—Simplifying the Measurement of Inventory.” The amendments in this ASU apply to all inventory that is measured using first-in, first-out or average cost. This standard requires that an entity measure inventory within the scope of this update at the lower of cost and net realizable value. Net realizable value is the estimated selling prices in the ordinary course of business, less reasonably predictable costs of completion, disposal, and transportation. The amendments in this ASU are effective for annual periods beginning after December 15, 2016, including interim periods within those fiscal years. The Company does not expect adoption of this ASU to have a material impact on the Company’s consolidated financial statements. In August 2014, the FASB issued ASU 2014-15, “Presentation of Financial Statements—Going Concern (Subtopic 205-40): Disclosure of Uncertainties about an Entity’s Ability to Continue as a Going Concern.” Under this guidance, management will be required to assess an entity’s ability to continue as a going concern, and to provide related footnote disclosures in certain circumstances. The provisions of this ASU are effective for annual periods beginning after December 15, 2016, including interim periods within those fiscal years. The Company does not expect the adoption of this ASU to have an impact on the Company’s consolidated financial statements. In May 2014, the FASB issued ASU 2014-09, “Revenue from Contracts with Customers (Topic 606),” which supersedes all existing revenue recognition requirements, including most industry-specific guidance. This standard requires a company to recognize revenue when it transfers goods and services to customers in an amount that reflects the consideration that the company expects to be entitled to in exchange for those goods or services. The ASU also requires additional disclosure about the nature, amount, timing and uncertainty of revenue and cash flows arising from customer contracts, including significant judgments and assets recognized from costs incurred to obtain or fulfill a contract. This pronouncement is effective for annual periods beginning after December 15, 2017, including interim periods within those fiscal years. The two permitted transition methods under the new standard are the full retrospective method, in which case the standard would be applied to each prior reporting period presented, or the modified retrospective method, in which case the cumulative effect of applying the standard would be recognized at the date of initial application. The Company has not yet selected a transition method. The Company is currently evaluating the requirements of this ASU and has not yet determined its impact on the Company’s consolidated financial statements.

Acquisitions (Tables)

Acquisitions (Tables)	9 Months Ended
	Sep. 30, 2016
Newport [Member]
Summary of Purchase Price	The purchase price of Newport consisted of the following: Cash paid for outstanding shares (1) $ 905,254 Settlement of share-based compensation awards (2) 8,824 Cash paid for Newport debt (3) 93,200 Total purchase price $ 1,007,278 Less: Cash and cash equivalents acquired (61,463 ) Total purchase price, net of cash and cash equivalents acquired $ 945,815 (1) Represents cash paid of $23.00 per share for approximately 39,359,000 shares of Newport common stock, without interest and subject to a deduction for any required withholding tax. (2) Represents the vested but not issued portion of Newport share-based compensation awards as of the acquisition date of April 29, 2016. (3) Represents the cash paid for the outstanding balance of Newport’s senior secured revolving credit agreement.
Summary of Estimated Fair Value of Assets Acquired and Liabilities Assumed	The following table summarizes the allocation of the preliminary purchase price to the fair values assigned to assets acquired and liabilities assumed at the date of the Newport Merger: Current assets (including cash) $ 185,155 Inventory 142,714 Intangible assets 399,806 Goodwill 396,216 Property, plant and equipment 119,932 Long-term assets 22,725 Total assets acquired 1,266,548 Current liabilities 98,458 Other long-term liabilities 160,812 Total liabilities assumed 259,270 Fair value of assets acquired and liabilities assumed 1,007,278 Less: Cash and cash equivalents acquired (61,463 ) Total purchase price, net of cash and cash equivalents acquired $ 945,815
Allocation of Acquired Intangible Assets and Related Estimates of Useful Lives	The following table reflects the allocation of the acquired intangible assets and liabilities and related estimate of useful lives: Order backlog $ 12,100 1 year Customer relationships 243,093 6-18 years Trademarks and trade names 55,900 Indefinite Developed technology 75,386 4-8 years In-process research and development 6,899 Undefined (1) Leasehold interest, net (2) 2,126 4-5 years Total $ 395,504 (1) The useful lives of in-process research and development will be defined in the future upon further evaluation of the status of these programs. (2) Leasehold interest is comprised of a favorable leasehold asset of $6,428 and an unfavorable leasehold liability of $4,302.
Schedule of Unaudited Pro Forma Financial Information	The following unaudited pro forma financial information presents the combined results of operations of the Company as if the Newport Merger had occurred on January 1, 2015. The unaudited pro forma financial information is not necessarily indicative of what the Company’s condensed consolidated results of operations actually would have been had the acquisition occurred at the beginning of each year. In addition, the unaudited pro forma financial information does not attempt to project the future results of operations of the combined company. Three Months Ended September 30, Nine Months Ended September 30, 2016 2015 2016 2015 Total net revenues $ 380,660 $ 355,955 $ 1,070,471 $ 1,090,641 Net income $ 35,915 $ 23,725 $ 65,313 $ 48,239 Net income per share: Basic $ 0.67 $ 0.45 $ 1.22 $ 0.90 Diluted $ 0.66 $ 0.44 $ 1.21 $ 0.90
Precisive, LLC [Member]
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 Precisive acquisition: Current assets $ 693 Non-current assets 18 Intangible assets 5,110 Goodwill 7,042 Total assets acquired 12,863 Total current liabilities assumed (343 ) Fair value of assets acquired and liabilities assumed 12,520 Less: cash acquired (435 ) Total purchase price, net of cash acquired $ 12,085
Allocation of Acquired Intangible Assets and Related Estimates of Useful Lives	Substantially all of the purchase price is 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, which approximates the pattern of use. Order backlog $ 50 18 months Customer relationships 1,430 8 years Exclusive patent license 2,600 10 years Trade names 210 10 years Developed technology 820 10 years Total $ 5,110

Investments (Tables)

Investments (Tables)	9 Months Ended
	Sep. 30, 2016
Investments, Debt and Equity Securities [Abstract]
Investments Classified as Short-Term and Long-Term Available-for-Sale Investments	Investments classified as short-term consists of the following: September 30, 2016 December 31, 2015 Available-for-sale investments: Time deposits and certificates of deposit $ 1,395 $ 11,892 Bankers’ acceptance drafts 2,487 728 Asset-backed securities 18,326 124,997 Commercial paper 2,793 — Corporate obligations 16,701 165,109 Municipal bonds 593 8,355 U.S. treasury obligations 1,152 — U.S. agency obligations 9,657 119,582 $ 53,104 $ 430,663 Investments classified as long-term consists of the following: September 30, 2016 December 31, 2015 Available-for-sale investments: Group insurance contracts $ 5,956 $ — Cost method investments: Minority interest in Reno Sub-Systems, Inc. 9,300 — $ 15,256 $ —
Gross Unrealized Gains and (Losses) Aggregated by Investment Category Short-Term and Long-Term Securities	The following tables show the gross unrealized gains and (losses) aggregated by investment category for short-term and long-term available-for-sale investments: As of September 30, 2016: Cost Gross Gross Estimated Short-term investments: Available-for-sale investments: Time deposits and certificates of deposit $ 1,395 $ — $ — $ 1,395 Bankers’ acceptance drafts 2,487 — — 2,487 Asset-backed securities 18,317 13 (4 ) 18,326 Commercial paper 2,794 — (1 ) 2,793 Corporate obligations 16,699 15 (13 ) 16,701 Municipal bonds 592 1 — 593 U.S. treasury obligations 1,151 1 — 1,152 U.S. agency obligations 9,653 4 — 9,657 $ 53,088 $ 34 $ (18 ) $ 53,104 As of September 30, 2016: Cost Gross Gross Estimated Long-term investments: Available-for-sale investments: Group insurance contracts $ 5,988 $ — $ (32 ) $ 5,956 As of December 31, 2015: Cost Gross Gross Estimated Short-term investments: Available-for-sale investments: Time deposits and certificates of deposit $ 11,893 $ — $ (1 ) $ 11,892 Bankers’ acceptance drafts 728 — — 728 Asset-backed securities 125,271 — (274 ) 124,997 Corporate obligations 165,445 5 (341 ) 165,109 Municipal bonds 8,346 13 (4 ) 8,355 U.S. agency obligations 119,699 3 (120 ) 119,582 $ 431,382 $ 21 $ (740 ) $ 430,663

Fair Value Measurements (Tables

Fair Value Measurements (Tables)	9 Months Ended
	Sep. 30, 2016
Fair Value Disclosures [Abstract]
Schedule of Fair Value of Assets and Liabilities Measured on Recurring Basis	Assets and liabilities of the Company are measured at fair value on a recurring basis as of September 30, 2016 and are summarized as follows: Fair Value Measurements at Reporting Date Using Description September 30, Quoted Prices in Significant Significant Assets: Cash equivalents: Money market funds $ 10,105 $ 10,105 $ — $ — Time deposits and certificates of deposit 1,000 — 1,000 Bankers’ acceptance drafts 936 — 936 — Commercial paper 2,845 — 2,845 — U.S. agency obligations 650 — 650 — Restricted cash – money market funds 5,931 5,931 — — Available-for-sale investments: Time deposits and certificates of deposit 1,395 — 1,395 — Bankers’ acceptance drafts 2,487 — 2,487 — Asset-backed securities 18,326 — 18,326 — Commercial paper 2,793 — 2,793 — Corporate obligations 16,701 — 16,701 — Municipal bonds 593 — 593 — U.S. treasury obligations 1,152 — 1,152 — U.S. agency obligations 9,657 — 9,657 — Group insurance contracts 5,956 — 5,956 — Derivatives – currency forward contracts 250 — 250 — Derivatives – option contracts 72 — 72 — Funds in investments and other assets: Israeli pension assets 13,779 — 13,779 — Restricted cash – non-current 245 245 — Total assets $ 94,873 $ 16,281 $ 78,592 $ — Liabilities: Derivatives – currency forward contracts $ 3,030 $ — $ 3,030 $ — Derivatives – option contracts 17 — 17 — Total liabilities $ 3,047 $ — $ 3,047 $ — Reported as follows: Assets: Cash and cash equivalents (1) $ 15,536 $ 10,105 $ 5,431 $ — Restricted cash 5,931 5,931 — — Short-term investments 53,104 — 53,104 — Other current assets 322 — 322 — Total current assets $ 74,893 $ 16,036 $ 58,857 $ — Long-term investments (2) $ 5,956 $ — $ 5,956 $ — Other long-term assets 13,779 — 13,779 — Restricted cash – non-current 245 245 — — Total long-term assets 19,980 245 19,735 — Liabilities: Other current liabilities $ 3,047 $ — $ 3,047 $ — (1) The cash and cash equivalents amounts presented in the table above do not include cash of $349,885 and non-negotiable time deposits of $1,453 as of September 30, 2016. (2) The long-term investments presented in the table above do not include our investment in Reno Sub-Systems, Inc., which is accounted for under the cost method. Assets and liabilities of the Company are measured at fair value on a recurring basis as of December 31, 2015 and are summarized as follows: Fair Value Measurements at Reporting Date Using Description December 31, 2015 Quoted Prices in Significant Significant Assets: Cash equivalents: Money market funds $ 106,099 $ 106,099 $ — $ — Bankers’ acceptance drafts 11 — 11 — Corporate obligations 330 — 330 — Available-for-sale investments: Time deposits and certificates of deposit 11,892 — 11,892 — Bankers’ acceptance drafts 728 — 728 — Asset-backed securities 124,997 — 124,997 — Corporate obligations 165,109 — 165,109 — Municipal bonds 8,355 — 8,355 — U.S. agency obligations 119,582 — 119,582 — Derivatives – currency forward contracts 1,486 — 1,486 — Total assets $ 538,589 $ 106,099 $ 432,490 $ — Liabilities: Derivatives – currency forward contracts $ 263 $ — $ 263 $ — Reported as follows: Assets: Cash and cash equivalents (1) $ 106,440 $ 106,099 $ 341 $ — Short-term investments 430,663 — 430,663 — Other current assets 1,486 — 1,486 — Total current assets $ 538,589 $ 106,099 $ 432,490 $ — Liabilities: Other current liabilities $ 263 $ — $ 263 $ — (1) The cash and cash equivalents amounts presented in the table above do not include cash of $110,118 and non-negotiable time deposits of $11,016 as of December 31, 2015.

Derivatives (Tables)

Derivatives (Tables)	9 Months Ended
	Sep. 30, 2016
Derivative Instruments and Hedging Activities Disclosure [Abstract]
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 September 30, 2016 and December 31, 2015: September 30, 2016 Currency Hedged (Buy/Sell) Gross Notional Fair Value (1) U.S. Dollar/Japanese Yen $ 13,213 $ (1,876 ) U.S. Dollar/South Korean Won 18,150 (930 ) U.S. Dollar/Euro 3,969 (14 ) U.S. Dollar/U.K. Pound Sterling 1,461 207 U.S. Dollar/Taiwan Dollar 4,678 (167 ) Total $ 41,471 $ (2,780 ) (1) Represents the fair value of the net (liability) asset amount included in the condensed consolidated balance sheet. December 31, 2015 Currency Hedged (Buy/Sell) Gross Notional Fair Value (1) U.S. Dollar/Japanese Yen $ 26,848 $ (136 ) U.S. Dollar/South Korean Won 34,777 915 U.S. Dollar/Euro 10,987 19 U.S. Dollar/U.K. Pound Sterling 4,587 61 U.S. Dollar/Taiwan Dollar 12,790 364 Total $ 89,989 $ 1,223 (1) Represents the fair value of the net asset (liability) amount included in the condensed 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: September 30, 2016 December 31, 2015 Derivative assets: Forward exchange contracts $ 250 $ 1,486 Foreign currency option contracts 72 — Derivative liabilities: Forward exchange contracts (3,030 ) (263 ) Foreign currency option contracts (17 ) — Total net derivative (liabilities) assets (1) $ (2,725 ) $ 1,223 (1) The derivative asset of $322 and derivative liability of $3,047 are classified in other current assets and other current liabilities, respectively, in the condensed consolidated balance sheet as of September 30, 2016. The derivative asset of $1,486 and derivative liability of $263 are classified in other current assets and other current liabilities, respectively, in the condensed consolidated balance sheet as of December 31, 2015. These foreign exchange contracts are subject to a master netting agreement with one financial institution. However, the Company has elected to record these contracts on a gross basis in the balance sheet.
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: Three Months Ended Nine Months Ended Derivatives Designated as Cash Flow Hedging Instruments 2016 2015 2016 2015 Forward exchange contracts: Net gain (loss) recognized in OCI (1) $ 326 $ 1,148 $ (3,107 ) $ (2,372 ) Net (loss) gain reclassified from accumulated OCI into income (2) $ (764 ) $ 857 $ (487 ) $ 2,766 (1) Net change in the fair value of the effective portion classified in OCI. (2) Effective portion classified in cost of products for the three and nine months ended September 30, 2016 and 2015. The tax effect of the gains or losses reclassified from accumulated OCI into income is immaterial.
Summary of (Losses) and Gains on Derivatives Not Designated as Hedging Instruments	The following table provides a summary of the (losses) and gains on derivatives not designated as hedging instruments: Three Months Ended Nine Months Ended Derivatives Not Designated as Hedging Instruments 2016 2015 2016 2015 Forward exchange contracts: Net (loss) gain recognized in income (1) $ (339 ) $ 116 $ (1,283 ) $ 1,331 Foreign currency option contracts: Net (loss) gain recognized in income (1) $ (63 ) $ — $ 52 $ — (1) The Company enters into foreign exchange contracts to hedge against changes in the balance sheet for certain subsidiaries and also enters into foreign currency option contracts to mitigate the risk associated with certain foreign currency transactions in the ordinary course of business. These derivatives are not designated as hedging instruments and gains or losses from these derivatives are recorded immediately in selling, general and administrative expenses.

Inventories (Tables)

Inventories (Tables)	9 Months Ended
	Sep. 30, 2016
Inventory Disclosure [Abstract]
Summary of Inventories	Inventories consist of the following: September 30, 2016 December 31, 2015 Raw materials $ 100,691 $ 78,352 Work-in-process 94,679 23,297 Finished goods 83,595 50,982 $ 278,965 $ 152,631

Goodwill and Intangible Assets

Goodwill and Intangible Assets (Tables)	9 Months Ended
	Sep. 30, 2016
Goodwill and Intangible Assets Disclosure [Abstract]
Goodwill	The changes in the carrying amount of goodwill and accumulated impairment (loss) during the nine months ended September 30, 2016 and year ended December 31, 2015 were as follows: Nine Months Ended September 30, Twelve Months Ended December 31, 2016 2015 Gross Accumulated Net Gross Accumulated Net Beginning balance at January 1 $ 339,117 $ (139,414 ) $ 199,703 $ 331,795 $ (139,414 ) $ 192,381 Acquired goodwill (1) 396,216 — 396,216 8,017 — 8,017 Foreign currency translation (1,284 ) — (1,284 ) (695 ) — (695 ) Ending balance at September 30, 2016 and December 31, 2015 $ 734,049 $ (139,414 ) $ 594,635 $ 339,117 $ (139,414 ) $ 199,703 (1) During 2016, the Company recorded $396,216 of goodwill related to the Newport Merger. During 2015, the Company recorded $7,042 of goodwill related to the acquisition of Precisive. During 2015, the Company recorded a purchase accounting adjustment of $975 primarily related to an inventory valuation adjustment related to an acquisition that occurred in 2014.
Intangible Assets	Components of the Company’s intangible assets are comprised of the following: As of September 30, 2016: Gross Accumulated Foreign Currency Net Completed technology (1) $ 176,586 $ (89,912 ) $ (290 ) $ 86,384 Customer relationships (1) 280,344 (25,742 ) (954 ) 253,648 Patents, trademarks, trade names and other (1) 104,824 (31,899 ) (26 ) 72,899 In-process research and development (1) 6,899 — (19 ) 6,880 $ 568,653 $ (147,553 ) $ (1,289 ) $ 419,811 As of December 31, 2015: Gross Accumulated Foreign Currency Net Completed technology (2) $ 101,200 $ (82,330 ) $ (272 ) $ 18,598 Customer relationships (2) 37,251 (16,345 ) 10 20,916 Patents, trademarks, trade names and other (2) 30,396 (25,888 ) 5 4,513 $ 168,847 $ (124,563 ) $ (257 ) $ 44,027 (1) During 2016, the Company recorded $399,806 of separately identified intangible assets related to the Newport Merger, of which $75,386 was completed technology, $243,093 was customer relationships, $74,428 was patents, trademarks, trade names and other, and $6,899 was in-process research and development. The Company also recorded $4,302 of unfavorable lease commitments, which is recorded in other liabilities in the balance sheet. (2) During 2015, the Company recorded $5,110 of separately identified intangible assets related to the acquisition of Precisive, of which $820 was completed technology, $1,430 was customer relationships and $2,860 was patents, trademarks, trade names and other.
Estimated Amortization Expense	Estimated amortization expense for each of the remaining fiscal years is as follows: Year Amount 2016 (remaining) $ 12,605 2017 42,335 2018 38,287 2019 38,244 2020 34,270 2021 27,276 Thereafter 170,894

Other Assets (Tables)

Other Assets (Tables)	9 Months Ended
	Sep. 30, 2016
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]
Schedule of Other Assets	September 30, 2016 December 31, 2015 Other Current Assets: Income tax receivable $ 7,754 $ 8,682 Prepaid income tax 10,825 4,755 Other 35,037 13,323 Total other current assets $ 53,616 $ 26,760 Other Assets: Deferred tax assets, net $ 3,025 $ 19,252 Other 26,901 1,998 Total other assets $ 29,926 $ 21,250

Other Liabilities (Tables)

Other Liabilities (Tables)	9 Months Ended
	Sep. 30, 2016
Other Liabilities Disclosure [Abstract]
Schedule of Other Liabilities	September 30, 2016 December 31, 2015 Other Current Liabilities: VAT payable $ 6,004 $ 3,075 Customer prepayments 4,349 1,741 Product warranties 8,083 5,205 Deferred revenue 14,704 7,189 Other 40,214 18,149 Total other current liabilities $ 73,354 $ 35,359 Other Liabilities: Long-term income tax payable $ 14,140 $ 4,483 Other 5,816 949 Total other liabilities $ 19,956 $ 5,432

Debt (Tables)

Debt (Tables)	9 Months Ended
	Sep. 30, 2016
Debt Disclosure [Abstract]
Schedule of Short-Term Debt	Short-term debt: September 30, 2016 Japanese lines of credit $ 3,958 Japanese receivables financing facility 252 Other debt 18 Current portion of Term Loan Facility 7,300 $ 11,528 (1) Net of deferred financing fees, original issuance discount and repricing fees of $22,394.
Schedule of Long-Term Debt	Long-term debt: September 30, 2016 Austrian loans due through March 2020 $ 587 Term Loan Facility, net (1) 638,481 $ 639,068 (1) Net of deferred financing fees, original issuance discount and repricing fees of $22,394.
Schedule of Contractual Maturities of Debt Obligations	Contractual maturities of the Company’s debt obligations as of September 30, 2016 are as follows: Year Amount 2016 (remaining) $ 6,054 2017 7,404 2018 7,312 2019 7,726 2020 7,344 2021 7,300 Thereafter 629,850

Product Warranties (Tables)

Product Warranties (Tables)	9 Months Ended
	Sep. 30, 2016
Guarantees [Abstract]
Product Warranty Activities	Product warranty activities were as follows: Nine Months Ended September 30, 2016 2015 Beginning of period $ 5,205 $ 6,266 Product warranty liability from Newport Merger 3,040 — Provision for product warranties 5,067 3,527 Direct charges to warranty liability (5,213 ) (3,859 ) Foreign currency translation 43 (97 ) End of period (1) $ 8,142 $ 5,837 (1) Short-term product warranty of $8,083 and long-term product warranty of $59 are included in other current liabilities and other liabilities, respectively, in the accompanying condensed consolidated balance sheet.

Pension Plans (Tables)

Pension Plans (Tables)	9 Months Ended
	Sep. 30, 2016
Compensation and Retirement Disclosure [Abstract]
Summary of Net Periodic Benefit Costs	The Company has included the net periodic benefit costs for the plans from the date of the acquisition on April 29, 2016 through September 30, 2016. The net periodic benefit costs included the following components: Three months ended Nine months ended Service cost $ 596 $ 1,000 Interest cost on projected benefit obligation 121 201 Expected return on plan assets (44 ) (75 ) $ 673 $ 1,126

Interest and Other (Expense) 39

Interest and Other (Expense) Income, Net (Tables)	9 Months Ended
	Sep. 30, 2016
Other Income and Expenses [Abstract]
Summary of Interest and Other (Expense) Income, Net	Three Months Ended Nine Months Ended 2016 2015 2016 2015 Interest income $ 404 $ 778 $ 1,859 $ 2,147 Other income 1,544 — 1,583 — Interest expense (12,007 ) (57 ) (20,527 ) (132 ) Impact of foreign exchange (expense) income (701 ) — 753 — Interest and other (expense) income, net $ (10,760 ) $ 721 $ (16,332 ) $ 2,015

Net Income Per Share (Tables)

Net Income Per Share (Tables)	9 Months Ended
	Sep. 30, 2016
Earnings Per Share [Abstract]
Computation of Basic and Diluted Net Income Per Share	The following table sets forth the computation of basic and diluted net income per share: Three Months Ended September 30, Nine Months Ended September 30, 2016 2015 2016 2015 Numerator: Net income $ 32,549 $ 29,769 $ 59,322 $ 96,775 Denominator: Shares used in net income per common share – basic 53,574,000 53,314,000 53,423,000 53,304,000 Effect of dilutive securities: Stock options, restricted stock, stock appreciation rights and employee stock purchase plan 741,000 254,000 472,000 258,000 Shares used in net income per common share – diluted 54,315,000 53,568,000 53,895,000 53,562,000 Net income per common share: Basic $ 0.61 $ 0.56 $ 1.11 $ 1.82 Diluted $ 0.60 $ 0.56 $ 1.10 $ 1.81

Stock-Based Compensation (Table

Stock-Based Compensation (Tables)	9 Months Ended
	Sep. 30, 2016
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Schedule of Total Stock-Based Compensation Expense Included in Company's Consolidated Statements of Income and Comprehensive Income	The total stock-based compensation expense included in the Company’s consolidated statements of income and comprehensive income was as follows: Three Months Ended Nine Months Ended 2016 2015 2016 2015 Cost of revenues $ 666 $ 432 $ 1,996 $ 1,489 Research and development expense 551 405 1,614 1,255 Selling, general and administrative expense 3,941 2,410 16,216 7,281 Total pre-tax stock-based compensation expense $ 5,158 $ 3,247 $ 19,826 $ 10,025
Summary of Activity for RSUs	The following table presents the activity for RSUs under the Plan: Nine Months Ended September 30, 2016 Non-vested RSUs Weighted Average Non-vested RSUs – beginning of period 733,162 $ 30.94 Assumed RSUs from Newport Merger 360,674 35.01 Accrued dividend shares 136 43.64 Granted 740,985 35.51 Vested (452,251 ) 31.18 Forfeited (55,474 ) 33.74 Non-vested RSUs – end of period 1,327,232 $ 34.40
Summary of Activity for Outstanding and Exercisable Stock Appreciation Rights	At September 30, 2016, the Company’s outstanding and exercisable stock appreciation rights, the weighted-average base value, the weighted average remaining contractual life and the aggregate intrinsic value thereof, were as follows: Number Weighted Weighted Aggregate Stock appreciation rights outstanding 712,284 $ 27.86 4.1 $ 15,581 Stock appreciation rights exercisable 482,001 $ 26.52 3.5 $ 11,185

Business Segment, Geographic 42

Business Segment, Geographic Area, Product and Significant Customer Information (Tables)	9 Months Ended
	Sep. 30, 2016
Segment Reporting [Abstract]
Net Revenues, Assets and Goodwill by Reportable Segment	The following is net revenues by reportable segment: Three Months Ended September 30, Nine Months Ended September 30, 2016 2015 2016 2015 Vacuum & Analysis Division $ 229,167 $ 209,332 $ 620,207 $ 641,137 Light & Motion Division 151,493 — 269,995 — $ 380,660 $ 209,332 $ 890,202 $ 641,137 Total income tax expense is not presented by reportable segment because the necessary information is not available or used by the CODM. The following is segment assets by reportable segment: September 30, 2016 Vacuum & Analysis Light & Motion Corporate & Total Segment assets: Accounts receivable $ 136,654 $ 128,401 $ (21,202 ) $ 243,853 Inventory 161,219 117,746 — 278,965 Total segment assets $ 297,873 $ 246,147 $ (21,202 ) $ 522,818 December 31, 2015 Vacuum & Analysis Light & Motion Corporate & Total Segment assets: Accounts receivable $ 101,883 $ — $ — $ 101,883 Inventory 152,631 — — 152,631 Total segment assets $ 254,514 $ — $ — $ 254,514 Goodwill associated with the Company’s reportable segments is as follows: September 30, 2016 December 31, 2015 Reportable segment: Vacuum & Analysis Division $ 200,368 $ 199,703 Light & Motion Division 394,267 — Total goodwill $ 594,635 $ 199,703
Reconciliation of Segment Gross Profit to Consolidated Net Income	The following is a reconciliation of segment gross profit to consolidated net income: Three Months Ended September 30, Nine Months Ended September 30, 2016 2015 2016 2015 Gross profit by reportable segment: Vacuum & Analysis Division $ 104,232 $ 94,229 $ 273,004 $ 290,073 Light & Motion Division 64,153 — 109,207 — Total gross profit by reportable segment 168,385 94,229 382,211 290,073 Operating expenses: Research and development 32,268 17,217 77,709 51,464 Selling, general and administrative 70,424 33,396 175,803 97,532 Acquisition costs 233 — 10,932 30 Restructuring — 562 24 1,569 Amortization of intangible assets 12,452 1,691 22,990 5,071 Income from operations 53,008 41,363 94,753 134,407 Interest and other (expense) income, net (10,760 ) 721 (16,332 ) 2,015 Income before income taxes 42,248 42,084 78,421 136,422 Provision for income taxes 9,699 12,315 19,099 39,647 Net income $ 32,549 $ 29,769 $ 59,322 $ 96,775
Schedule of Capital Expenditures, Depreciation and Amortization Expense and Segment Assets by Reportable Segment	The following is capital expenditures by reportable segment for the three and nine months ended September 30, 2016 and 2015: Vacuum & Analysis Light & Motion Total Three Months Ended September 30, 2016: Capital expenditures $ 2,772 $ 1,923 $ 4,695 Nine Months Ended September 30, 2016: Capital expenditures $ 7,964 $ 3,995 $ 11,959 Vacuum & Analysis Light & Motion Total Three Months Ended September 30, 2015: Capital expenditures $ 3,497 $ — $ 3,497 Nine Months Ended September 30, 2015: Capital expenditures $ 8,831 $ — $ 8,831 The following is depreciation and amortization by reportable segment for the three and nine months ended September 30, 2016 and 2015: Vacuum & Analysis Light & Motion Total Three Months Ended September 30, 2016: Depreciation and amortization $ 5,142 $ 16,907 $ 22,049 Nine Months Ended September 30, 2016: Depreciation and amortization $ 15,628 $ 28,129 $ 43,757 Vacuum & Analysis Light & Motion Total Three Months Ended September 30, 2015: Depreciation and amortization $ 5,524 $ — $ 5,524 Nine Months Ended September 30, 2015: Depreciation and amortization $ 16,606 $ — $ 16,606
Reconciliation of Segment Assets to Consolidated Total Assets	A reconciliation of segment assets to consolidated total assets is as follows: September 30, 2016 December 31, 2015 Total segment assets $ 522,818 $ 254,514 Cash and cash equivalents and investments 435,234 658,237 Other current assets, including restricted cash 59,547 26,760 Property, plant and equipment, net 179,694 68,856 Goodwill and intangible assets, net 1,014,446 243,730 Other assets 29,926 21,250 Consolidated total assets $ 2,241,665 $ 1,273,347
Worldwide Net Revenue for Each Group of Products	Worldwide net revenue for each group of products is as follows: Three Months Ended September 30, Nine Months Ended September 30, 2016 2015 2016 2015 Instruments, Control & Vacuum Products $ 114,491 $ 98,614 $ 317,141 $ 319,491 Power & Reactive Gas Products 98,827 95,311 259,797 276,787 Analytical Solutions Products 15,907 15,407 43,334 44,859 Photonics Products 62,226 — 108,090 — Optics Products 44,331 — 79,594 — Lasers Products 44,878 — 82,246 — $ 380,660 $ 209,332 $ 890,202 $ 641,137
Schedule of Net Revenues and Long-Lived Assets by Geographic Regions	Transfers between geographic areas are at negotiated transfer prices and have been eliminated from consolidated net revenues. Three Months Ended September 30, Nine Months Ended September 30, 2016 2015 2016 2015 Net revenues: North America $ 198,305 $ 122,348 $ 460,994 $ 365,942 Korea 32,642 27,760 79,240 87,181 Japan 26,970 14,699 68,738 49,001 Asia (excluding Korea and Japan) 75,179 24,833 173,526 79,259 Europe 47,564 19,692 107,704 59,754 $ 380,660 $ 209,332 $ 890,202 $ 641,137 September 30, 2016 December 31, 2015 Long-lived assets: (1) North America $ 120,379 $ 56,594 Europe 30,818 5,783 Asia 50,551 8,952 $ 201,748 $ 71,329 (1) Long-lived assets include property, plant and equipment, net and certain other long-term assets, excluding long-term tax-related accounts.
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: Three Months Ended September 30, Nine Months Ended September 30, 2016 2015 2016 2015 Applied Materials, Inc. 12 % 18 % 14 % 18 % LAM Research Corporation 9 % 16 % 11 % 14 %

Acquisitions - Additional Infor

Acquisitions - Additional Information (Detail) - USD ($) $ / shares in Units, $ in Thousands	Apr. 29, 2016	Apr. 27, 2016	Mar. 17, 2015	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Business Acquisition [Line Items]
Business acquisition share price				$ 23		$ 23
Measurement period from acquisition date						1 year
Stock-based compensation expense				$ 5,158	$ 3,247	$ 19,826	$ 10,025
Payments to acquire business, net of cash acquired						939,591	$ 9,910
Reno Sub-Systems Inc [Member]
Business Acquisition [Line Items]
Investments in minority interest		$ 9,300
Precisive, LLC [Member]
Business Acquisition [Line Items]
Payments to acquire business, net of cash acquired			$ 12,085
Business acquisition, cash acquired			435
Business acquisition, deferred consideration payment			$ 2,600
Newport [Member]
Business Acquisition [Line Items]
Business acquisition share price	$ 23
Incremental cost of sales charges				4,971		15,090
Fair value write-up of acquired property, plant and equipment				$ 36,242		36,242
Compensation expense						6,631
Stock-based compensation expense						$ 3,334
Payments to acquire business, net of cash acquired	$ 945,815
Business acquisition, cash acquired	$ 61,463

Acquisitions - Summary of Purch

Acquisitions - Summary of Purchase Price (Detail) - USD ($) $ in Thousands	Apr. 29, 2016	Sep. 30, 2016	Sep. 30, 2015
Business Acquisition [Line Items]
Total purchase price, net of cash and cash equivalents acquired		$ 939,591	$ 9,910
Newport [Member]
Business Acquisition [Line Items]
Cash paid for outstanding shares	$ 905,254
Settlement of share-based compensation awards	8,824
Cash paid for Newport debt	93,200
Total purchase price	1,007,278
Less: Cash and cash equivalents acquired	(61,463)
Total purchase price, net of cash and cash equivalents acquired	$ 945,815

Acquisitions - Summary of Pur45

Acquisitions - Summary of Purchase Price (Parenthetical) (Detail)	Sep. 30, 2016$ / sharesshares
Business Combinations [Abstract]
Business acquisition share price | $ / shares	$ 23
Business acquisition number of shares acquired | shares	39,359,000

Acquisitions - Summary of Estim

Acquisitions - Summary of Estimated Fair Value of Assets Acquired and Liabilities Assumed (Detail) - USD ($) $ in Thousands	Apr. 29, 2016	Mar. 17, 2015	Sep. 30, 2016	Sep. 30, 2015	Dec. 31, 2015	Dec. 31, 2014
Business Acquisition [Line Items]
Goodwill			$ 594,635		$ 199,703	$ 192,381
Total purchase price, net of cash acquired			939,591	$ 9,910
Precisive, LLC [Member]
Business Acquisition [Line Items]
Current assets		$ 693
Non-current assets		18
Intangible assets		5,110
Goodwill		7,042			$ 7,042
Total assets acquired		12,863
Current liabilities		343
Fair value of assets acquired and liabilities assumed		12,520
Less cash acquired		(435)
Total purchase price, net of cash acquired		$ 12,085
Newport [Member]
Business Acquisition [Line Items]
Current assets	$ 185,155
Inventory	142,714
Intangible assets	399,806
Goodwill	396,216		$ 396,216
Property, plant and equipment	119,932
Long-term assets	22,725
Total assets acquired	1,266,548
Current liabilities	98,458
Other long-term liabilities	160,812
Total liabilities assumed	259,270
Fair value of assets acquired and liabilities assumed	1,007,278
Less cash acquired	(61,463)
Total purchase price, net of cash acquired	$ 945,815

Acquisitions - Allocation of Ac

Acquisitions - Allocation of Acquired Intangible Assets and Liabilities Related Estimates of Useful Lives (Detail) - USD ($) $ in Thousands	Apr. 29, 2016	Mar. 17, 2015	Sep. 30, 2016	Dec. 31, 2015
Acquired Finite-Lived Intangible Assets [Line Items]
Acquired intangible assets, purchase price	$ 395,504
Precisive, LLC [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Acquired intangible assets, purchase price		$ 5,110		$ 5,110
Newport [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Acquired intangible assets, purchase price			$ 399,806
Order Backlog [Member] | Precisive, LLC [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Acquired intangible assets, purchase price		$ 50
Estimated useful life of finite-lived intangible assets		18 months
Order Backlog [Member] | Newport [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Acquired intangible assets, purchase price	$ 12,100
Estimated useful life of finite-lived intangible assets	1 year
Customer Relationships [Member] | Precisive, LLC [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Acquired intangible assets, purchase price		$ 1,430		$ 1,430
Estimated useful life of finite-lived intangible assets		8 years
Customer Relationships [Member] | Newport [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Acquired intangible assets, purchase price	$ 243,093		243,093
Customer Relationships [Member] | Newport [Member] | Minimum [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Estimated useful life of finite-lived intangible assets	6 years
Customer Relationships [Member] | Newport [Member] | Maximum [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Estimated useful life of finite-lived intangible assets	18 years
Trade names [Member] | Precisive, LLC [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Acquired intangible assets, purchase price		$ 210
Estimated useful life of finite-lived intangible assets		10 years
Developed Technology [Member] | Precisive, LLC [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Acquired intangible assets, purchase price		$ 820
Estimated useful life of finite-lived intangible assets		10 years
Developed Technology [Member] | Newport [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Acquired intangible assets, purchase price	$ 75,386
Developed Technology [Member] | Newport [Member] | Minimum [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Estimated useful life of finite-lived intangible assets	4 years
Developed Technology [Member] | Newport [Member] | Maximum [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Estimated useful life of finite-lived intangible assets	8 years
In-process Research and Development [Member] | Newport [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Acquired intangible assets, purchase price	$ 6,899		$ 6,899
Estimated useful life of finite-lived intangible assets	Undefined
Exclusive Patent License [Member] | Precisive, LLC [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Acquired intangible assets, purchase price		$ 2,600
Estimated useful life of finite-lived intangible assets		10 years
Trademarks and Trade Names [Member] | Newport [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Acquired intangible assets, purchase price	$ 55,900
Estimated useful life of finite-lived intangible assets	Indefinite
Leasehold Interest, Net [Member] | Newport [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Acquired intangible assets, purchase price	$ 2,126
Leasehold Interest, Net [Member] | Newport [Member] | Minimum [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Estimated useful life of finite-lived intangible assets	4 years
Leasehold Interest, Net [Member] | Newport [Member] | Maximum [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Estimated useful life of finite-lived intangible assets	5 years

Acquisitions - Allocation of 48

Acquisitions - Allocation of Acquired Intangible Assets and Liabilities Related Estimates of Useful Lives (Parenthetical) (Detail) $ in Thousands	Apr. 29, 2016USD ($)
Business Combinations [Abstract]
Favorable leasehold asset	$ 6,428
Unfavorable leasehold liability	$ 4,302

Acquisitions - Schedule of Unau

Acquisitions - Schedule of Unaudited Pro Forma Financial Information (Detail) - Newport [Member] - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Business Acquisition [Line Items]
Total net revenues	$ 380,660	$ 355,955	$ 1,070,471	$ 1,090,641
Net income	$ 35,915	$ 23,725	$ 65,313	$ 48,239
Net income per share:
Basic	$ 0.67	$ 0.45	$ 1.22	$ 0.90
Diluted	$ 0.66	$ 0.44	$ 1.21	$ 0.90

Investments - Investments Class

Investments - Investments Classified as Short-Term Available-for-Sale Investments (Detail) - USD ($) $ in Thousands	Sep. 30, 2016	Dec. 31, 2015
Schedule of Available-for-sale Securities [Line Items]
Fair value of available-for-sale investments	$ 53,104	$ 430,663
Time Deposits and Certificates of Deposit [Member]
Schedule of Available-for-sale Securities [Line Items]
Fair value of available-for-sale investments	1,395	11,892
Bankers' Acceptance Drafts [Member]
Schedule of Available-for-sale Securities [Line Items]
Fair value of available-for-sale investments	2,487	728
Asset-Backed Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Fair value of available-for-sale investments	18,326	124,997
Commercial Paper [Member]
Schedule of Available-for-sale Securities [Line Items]
Fair value of available-for-sale investments	2,793
Corporate Obligations [Member]
Schedule of Available-for-sale Securities [Line Items]
Fair value of available-for-sale investments	16,701	165,109
Municipal Bonds [Member]
Schedule of Available-for-sale Securities [Line Items]
Fair value of available-for-sale investments	593	8,355
U.S. Treasury Obligations [Member]
Schedule of Available-for-sale Securities [Line Items]
Fair value of available-for-sale investments	1,152
U.S. Agency Obligations [Member]
Schedule of Available-for-sale Securities [Line Items]
Fair value of available-for-sale investments	$ 9,657	$ 119,582

Investments - Investments Cla51

Investments - Investments Classified as Long-Term Available-for-Sale Investments (Detail) $ in Thousands	Sep. 30, 2016USD ($)
Schedule of Available-for-sale Securities [Line Items]
Long-term available-for-sale investments	$ 15,256
Minority Interest in Reno Sub-Systems [Member]
Schedule of Available-for-sale Securities [Line Items]
Long-term available-for-sale investments	9,300
Group Insurance Contracts [Member]
Schedule of Available-for-sale Securities [Line Items]
Long-term available-for-sale investments	$ 5,956

Investments - Gross Unrealized

Investments - Gross Unrealized Gains and (Losses) Aggregated by Investment Category Short-Term and Long-Term Securities (Detail) - USD ($) $ in Thousands	Sep. 30, 2016	Dec. 31, 2015
Schedule of Available-for-sale Securities [Line Items]
Investments, Cost	$ 53,088	$ 431,382
Investments, Gross Unrealized Gains	34	21
Investments, Gross Unrealized (Losses)	(18)	(740)
Investments, Estimated Fair Value	53,104	430,663
Time Deposits and Certificates of Deposit [Member]
Schedule of Available-for-sale Securities [Line Items]
Investments, Cost	1,395	11,893
Investments, Gross Unrealized (Losses)		(1)
Investments, Estimated Fair Value	1,395	11,892
Bankers' Acceptance Drafts [Member]
Schedule of Available-for-sale Securities [Line Items]
Investments, Cost	2,487	728
Investments, Estimated Fair Value	2,487	728
Asset-Backed Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Investments, Cost	18,317	125,271
Investments, Gross Unrealized Gains	13
Investments, Gross Unrealized (Losses)	(4)	(274)
Investments, Estimated Fair Value	18,326	124,997
Commercial Paper [Member]
Schedule of Available-for-sale Securities [Line Items]
Investments, Cost	2,794
Investments, Gross Unrealized (Losses)	(1)
Investments, Estimated Fair Value	2,793
Corporate Obligations [Member]
Schedule of Available-for-sale Securities [Line Items]
Investments, Cost	16,699	165,445
Investments, Gross Unrealized Gains	15	5
Investments, Gross Unrealized (Losses)	(13)	(341)
Investments, Estimated Fair Value	16,701	165,109
Municipal Bonds [Member]
Schedule of Available-for-sale Securities [Line Items]
Investments, Cost	592	8,346
Investments, Gross Unrealized Gains	1	13
Investments, Gross Unrealized (Losses)		(4)
Investments, Estimated Fair Value	593	8,355
U.S. Treasury Obligations [Member]
Schedule of Available-for-sale Securities [Line Items]
Investments, Cost	1,151
Investments, Gross Unrealized Gains	1
Investments, Estimated Fair Value	1,152
U.S. Agency Obligations [Member]
Schedule of Available-for-sale Securities [Line Items]
Investments, Cost	9,653	119,699
Investments, Gross Unrealized Gains	4	3
Investments, Gross Unrealized (Losses)		(120)
Investments, Estimated Fair Value	9,657	$ 119,582
Group Insurance Contracts [Member] | Long Term Investments [Member]
Schedule of Available-for-sale Securities [Line Items]
Investments, Cost	5,988
Investments, Gross Unrealized (Losses)	(32)
Investments, Estimated Fair Value	$ 5,956

Fair Value Measurements - Sched

Fair Value Measurements - Schedule of Fair Value of Assets and Liabilities Measured on Recurring Basis (Detail) - USD ($) $ in Thousands	Sep. 30, 2016	Dec. 31, 2015
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Restricted cash	$ 5,931
Available-for-sale investments	53,104	$ 430,663
Short-term investments	53,104	430,663
Derivatives - contracts	322	1,486
Other current assets	322	1,486
Available-for-sale investments	15,256
Other long-term assets	29,926	21,250
Derivatives - contracts	3,047	263
Fair Value Measurements, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Restricted cash - non-current	245
Total assets	94,873	538,589
Total liabilities	3,047
Cash and cash equivalents	15,536	106,440
Restricted cash	5,931
Short-term investments	53,104	430,663
Derivatives - contracts	322	1,486
Other current assets	322	1,486
Total current assets	74,893	538,589
Available-for-sale investments	5,956
Other long-term assets	13,779
Restricted cash - non-current	245
Total long-term assets	19,980
Derivatives - contracts	3,047	263
Fair Value Measurements, Recurring [Member] | Currency Forward Contracts [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivatives - contracts	250
Other current assets	250
Derivatives - contracts	3,030	263
Fair Value Measurements, Recurring [Member] | Option Contracts [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivatives - contracts	72
Other current assets	72
Derivatives - contracts	17
Money Market Funds [Member] | Fair Value Measurements, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash and cash equivalents	10,105	106,099
Restricted cash	5,931
Bankers' Acceptance Drafts [Member] | Fair Value Measurements, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash and cash equivalents	936	11
Available-for-sale investments	2,487	728
Time Deposits and Certificates of Deposit [Member] | Fair Value Measurements, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash and cash equivalents	1,000
Available-for-sale investments	1,395	11,892
Asset-Backed Securities [Member] | Fair Value Measurements, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale investments	18,326	124,997
U.S. Treasury Obligations [Member] | Fair Value Measurements, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale investments	1,152
U.S. Agency Obligations [Member] | Fair Value Measurements, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash and cash equivalents	650
Available-for-sale investments	9,657	119,582
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]
Restricted cash - non-current	245
Total assets	16,281	106,099
Cash and cash equivalents	10,105	106,099
Restricted cash	5,931
Total current assets	16,036	106,099
Restricted cash - non-current	245
Total long-term assets	245
Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] | Money Market Funds [Member] | Fair Value Measurements, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash and cash equivalents	10,105	106,099
Restricted cash	5,931
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]
Total assets	78,592	432,490
Total liabilities	3,047
Cash and cash equivalents	5,431	341
Short-term investments	53,104	430,663
Derivatives - contracts	322	1,486
Other current assets	322	1,486
Total current assets	58,857	432,490
Available-for-sale investments	5,956
Other long-term assets	13,779
Total long-term assets	19,735
Derivatives - contracts	3,047	263
Significant Other Observable Inputs (Level 2) [Member] | Fair Value Measurements, Recurring [Member] | Currency Forward Contracts [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivatives - contracts	250
Other current assets	250
Derivatives - contracts	3,030	263
Significant Other Observable Inputs (Level 2) [Member] | Fair Value Measurements, Recurring [Member] | Option Contracts [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivatives - contracts	72
Other current assets	72
Derivatives - contracts	17
Significant Other Observable Inputs (Level 2) [Member] | Bankers' Acceptance Drafts [Member] | Fair Value Measurements, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash and cash equivalents	936	11
Available-for-sale investments	2,487	728
Significant Other Observable Inputs (Level 2) [Member] | Time Deposits and Certificates of Deposit [Member] | Fair Value Measurements, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash and cash equivalents	1,000
Available-for-sale investments	1,395	11,892
Significant Other Observable Inputs (Level 2) [Member] | Asset-Backed Securities [Member] | Fair Value Measurements, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale investments	18,326	124,997
Significant Other Observable Inputs (Level 2) [Member] | U.S. Treasury Obligations [Member] | Fair Value Measurements, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale investments	1,152
Significant Other Observable Inputs (Level 2) [Member] | U.S. Agency Obligations [Member] | Fair Value Measurements, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash and cash equivalents	650
Available-for-sale investments	9,657	119,582
Corporate Obligations [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale investments	16,701	165,109
Corporate Obligations [Member] | Fair Value Measurements, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash and cash equivalents		330
Available-for-sale investments	16,701	165,109
Corporate Obligations [Member] | 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		330
Available-for-sale investments	16,701	165,109
Municipal Bonds [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale investments	593	8,355
Municipal Bonds [Member] | Fair Value Measurements, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale investments	593	8,355
Municipal Bonds [Member] | 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]
Available-for-sale investments	593	$ 8,355
Commercial Paper [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale investments	2,793
Commercial Paper [Member] | Fair Value Measurements, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash and cash equivalents	2,845
Available-for-sale investments	2,793
Commercial Paper [Member] | 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	2,845
Available-for-sale investments	2,793
Group Insurance Contracts [Member] | Fair Value Measurements, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale investments	5,956
Group Insurance Contracts [Member] | 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]
Available-for-sale investments	5,956
Israeli Pension Assets [Member] | Fair Value Measurements, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash surrender value of life insurance	13,779
Israeli Pension Assets [Member] | 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 surrender value of life insurance	$ 13,779

Fair Value Measurements - Sch54

Fair Value Measurements - Schedule of Fair Value of Assets and Liabilities Measured on Recurring Basis (Parenthetical) (Detail) - USD ($) $ in Thousands	Sep. 30, 2016	Dec. 31, 2015	Sep. 30, 2015	Dec. 31, 2014
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash/Non-negotiable time deposits - not subject to fair value disclosure requirements	$ 366,874	$ 227,574	$ 195,147	$ 305,437
Cash [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash/Non-negotiable time deposits - not subject to fair value disclosure requirements	349,885	110,118
Non-Negotiable Time Deposits [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash/Non-negotiable time deposits - not subject to fair value disclosure requirements	$ 1,453	$ 11,016

Derivatives - Additional Inform

Derivatives - Additional Information (Detail) - USD ($)	9 Months Ended
	Sep. 30, 2016	Dec. 31, 2015
Derivative Instruments and Hedging Activities Disclosures [Line Items]
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	$ 41,471,000	$ 89,989,000
Accumulated other comprehensive income realization period	12 months
Net fair value asset of outstanding foreign currency option contracts	$ (2,780,000)	$ 1,223,000
Interest Rate Swap [Member]
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Percentage of debt which is subject to interest rate swap fixed rate	50.00%
Interest rate swap agreement, credit spread rate	3.50%
Interest rate swap agreement, maturity date	Sep. 30, 2020
Interest rate swap agreement, notional amount	$ 335,000,000
Interest rate swap agreement, interest rate description	The Company entered into an interest rate swap agreement to fix the rate on approximately 50% of its remaining outstanding term loan balance, as described further in Note 11. This cash flow hedge fixes the interest rate paid on the hedged debt at 1.198% per annum plus the credit spread of 3.50% through September 30, 2020.
Israeli Shekel [Member] | Foreign Currency Option Contracts [Member] | Instruments Not Qualify for Hedge Accounting [Member]
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Gross notional values of outstanding foreign currency option contracts	$ (476,000)
Net fair value asset of outstanding foreign currency option contracts	$ 55,000
Cash Flow Hedging [Member] | Interest Rate Swap [Member]
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Interest rate swap agreement, interest rate	1.198%

Derivatives - Summary of Primar

Derivatives - Summary of Primary Net Hedging Positions and Corresponding Fair Values (Detail) - USD ($) $ in Thousands	Sep. 30, 2016	Dec. 31, 2015
Derivative [Line Items]
Currency Hedged (Buy/Sell), Gross Notional Value, Net	$ 41,471	$ 89,989
Currency Hedged (Buy/Sell), Fair Value, (Liability)/Asset, Net	(2,780)	1,223
Forward Exchange Contracts [Member] | U.S. Dollar/Japanese Yen [Member]
Derivative [Line Items]
Currency Hedged (Buy/Sell), Gross Notional Value, Net	13,213	26,848
Currency Hedged (Buy/Sell), Fair Value, (Liability)/Asset, Net	(1,876)	(136)
Forward Exchange Contracts [Member] | U.S. Dollar/South Korean Won [Member]
Derivative [Line Items]
Currency Hedged (Buy/Sell), Gross Notional Value, Net	18,150	34,777
Currency Hedged (Buy/Sell), Fair Value, (Liability)/Asset, Net	(930)	915
Forward Exchange Contracts [Member] | U.S. Dollar/Euro [Member]
Derivative [Line Items]
Currency Hedged (Buy/Sell), Gross Notional Value, Net	3,969	10,987
Currency Hedged (Buy/Sell), Fair Value, (Liability)/Asset, Net	(14)	19
Forward Exchange Contracts [Member] | U.S. Dollar/U.K. Pound Sterling [Member]
Derivative [Line Items]
Currency Hedged (Buy/Sell), Gross Notional Value, Net	1,461	4,587
Currency Hedged (Buy/Sell), Fair Value, (Liability)/Asset, Net	207	61
Forward Exchange Contracts [Member] | U.S. Dollar/Taiwan Dollar [Member]
Derivative [Line Items]
Currency Hedged (Buy/Sell), Gross Notional Value, Net	4,678	12,790
Currency Hedged (Buy/Sell), Fair Value, (Liability)/Asset, Net	$ (167)	$ 364

Derivatives - Summary of Fair V

Derivatives - Summary of Fair Value Amounts of Company's Derivative Instruments (Detail) - USD ($) $ in Thousands	Sep. 30, 2016	Dec. 31, 2015
Derivatives, Fair Value [Line Items]
Derivative assets	$ 322	$ 1,486
Derivative liabilities	(3,047)	(263)
Total net derivative (liabilities) assets	(2,780)	1,223
Derivatives Designated as Hedging Instruments [Member]
Derivatives, Fair Value [Line Items]
Total net derivative (liabilities) assets	(2,725)	1,223
Forward Exchange Contracts [Member] | Derivatives Designated as Hedging Instruments [Member]
Derivatives, Fair Value [Line Items]
Derivative assets	250	1,486
Derivative liabilities	(3,030)	$ (263)
Foreign Currency Option Contracts [Member] | Derivatives Designated as Hedging Instruments [Member]
Derivatives, Fair Value [Line Items]
Derivative assets	72
Derivative liabilities	$ (17)

Derivatives - Summary of Fair58

Derivatives - Summary of Fair Value Amounts of Company's Derivative Instruments (Parenthetical) (Detail) - USD ($) $ in Thousands	Sep. 30, 2016	Dec. 31, 2015
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Derivative asset classified in other current assets	$ 322	$ 1,486
Derivative liability classified in other current liabilities	$ 3,047	$ 263

Derivatives - Summary of Gains

Derivatives - Summary of Gains (Losses) on Derivatives Designated as Hedging Instruments (Detail) - Forward Exchange Contracts [Member] - Cash Flow Hedging [Member] - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Derivative Instruments, Gain (Loss) [Line Items]
Net gain (loss) recognized in OCI	$ 326	$ 1,148	$ (3,107)	$ (2,372)
Net (loss) gain reclassified from accumulated OCI into income	$ (764)	$ 857	$ (487)	$ 2,766

Derivatives - Summary of (Losse

Derivatives - Summary of (Losses) and Gains on Derivatives Not Designated as Hedging Instruments (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Forward Exchange Contracts [Member]
Derivative Instruments Gain Loss Not Designated As Hedging Instruments [Line Items]
Net (loss) gain recognized in income	$ (339)	$ 116	$ (1,283)	$ 1,331
Foreign Currency Option Contracts [Member]
Derivative Instruments Gain Loss Not Designated As Hedging Instruments [Line Items]
Net (loss) gain recognized in income	$ (63)		$ 52

Inventories - Summary of Invent

Inventories - Summary of Inventories (Detail) - USD ($) $ in Thousands	Sep. 30, 2016	Dec. 31, 2015
Inventory Disclosure [Abstract]
Raw materials	$ 100,691	$ 78,352
Work-in-process	94,679	23,297
Finished goods	83,595	50,982
Inventories	$ 278,965	$ 152,631

Goodwill and Intangible Asset62

Goodwill and Intangible Assets - Goodwill (Detail) - USD ($) $ in Thousands	9 Months Ended	12 Months Ended
	Sep. 30, 2016	Dec. 31, 2015
Goodwill and Intangible Assets Disclosure [Abstract]
Beginning balance, Goodwill Gross Carrying Amount	$ 339,117	$ 331,795
Acquired goodwill, Gross Carrying Amount	396,216	8,017
Foreign currency translation, Gross Carrying Amount	(1,284)	(695)
Ending balance, Goodwill Gross Carrying Amount	734,049	339,117
Beginning balance, Accumulated Impairment (Loss)	(139,414)	(139,414)
Acquired goodwill, Accumulated Impairment (Loss)	0	0
Foreign currency translation, Accumulated Impairment (Loss)	0	0
Ending balance, Accumulated Impairment (Loss)	(139,414)	(139,414)
Beginning balance, Goodwill Net	199,703	192,381
Acquired goodwill, Net	396,216	8,017
Foreign currency translation, Net	(1,284)	(695)
Ending balance, Goodwill Net	$ 594,635	$ 199,703

Goodwill and Intangible Asset63

Goodwill and Intangible Assets - Goodwill (Parenthetical) (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Sep. 30, 2016	Apr. 29, 2016	Mar. 17, 2015	Dec. 31, 2014
Goodwill [Line Items]
Goodwill	$ 199,703	$ 594,635			$ 192,381
Acquisition purchase price	975
Newport [Member]
Goodwill [Line Items]
Goodwill		$ 396,216	$ 396,216
Precisive, LLC [Member]
Goodwill [Line Items]
Goodwill	$ 7,042			$ 7,042

Goodwill and Intangible Asset64

Goodwill and Intangible Assets - Intangible Assets (Detail) - USD ($) $ in Thousands	9 Months Ended	12 Months Ended
	Sep. 30, 2016	Dec. 31, 2015
Finite-Lived Intangible Assets [Line Items]
Intangible assets, Gross	$ 568,653	$ 168,847
Accumulated Amortization	(147,553)	(124,563)
Foreign Currency Translation	(1,289)	(257)
Intangible assets, net	419,811	44,027
Completed Technology [Member]
Finite-Lived Intangible Assets [Line Items]
Intangible assets, Gross	176,586	101,200
Accumulated Amortization	(89,912)	(82,330)
Foreign Currency Translation	(290)	(272)
Intangible assets, net	86,384	18,598
Customer Relationships [Member]
Finite-Lived Intangible Assets [Line Items]
Intangible assets, Gross	280,344	37,251
Accumulated Amortization	(25,742)	(16,345)
Foreign Currency Translation	(954)	10
Intangible assets, net	253,648	20,916
Patents, Trademarks, Trade Names and Other [Member]
Finite-Lived Intangible Assets [Line Items]
Intangible assets, Gross	104,824	30,396
Accumulated Amortization	(31,899)	(25,888)
Foreign Currency Translation	(26)	5
Intangible assets, net	72,899	$ 4,513
In-process Research and Development [Member]
Finite-Lived Intangible Assets [Line Items]
Intangible assets, Gross	6,899
Foreign Currency Translation	(19)
Intangible assets, net	$ 6,880

Goodwill and Intangible Asset65

Goodwill and Intangible Assets - Intangible Assets (Parenthetical) (Detail) - USD ($) $ in Thousands	Apr. 29, 2016	Mar. 17, 2015	Sep. 30, 2016	Dec. 31, 2015
Finite-Lived Intangible Assets [Line Items]
Acquired intangible assets	$ 395,504
Unfavorable lease commitments	4,302
Precisive, LLC [Member]
Finite-Lived Intangible Assets [Line Items]
Acquired intangible assets		$ 5,110		$ 5,110
Precisive, LLC [Member] | Completed Technology [Member]
Finite-Lived Intangible Assets [Line Items]
Acquired intangible assets				820
Precisive, LLC [Member] | Customer Relationships [Member]
Finite-Lived Intangible Assets [Line Items]
Acquired intangible assets		$ 1,430		1,430
Precisive, LLC [Member] | Patents, Trademarks, Trade Names and Other [Member]
Finite-Lived Intangible Assets [Line Items]
Acquired intangible assets				$ 2,860
Newport [Member]
Finite-Lived Intangible Assets [Line Items]
Acquired intangible assets			$ 399,806
Unfavorable lease commitments			4,302
Newport [Member] | Completed Technology [Member]
Finite-Lived Intangible Assets [Line Items]
Acquired intangible assets			75,386
Newport [Member] | Customer Relationships [Member]
Finite-Lived Intangible Assets [Line Items]
Acquired intangible assets	243,093		243,093
Newport [Member] | Patents, Trademarks, Trade Names and Other [Member]
Finite-Lived Intangible Assets [Line Items]
Acquired intangible assets			74,428
Newport [Member] | In-process Research and Development [Member]
Finite-Lived Intangible Assets [Line Items]
Acquired intangible assets	$ 6,899		$ 6,899

Goodwill and Intangible Asset66

Goodwill and Intangible Assets - Additional Information (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Goodwill and Intangible Assets Disclosure [Abstract]
Amortization of intangible assets	$ 12,452	$ 1,691	$ 22,990	$ 5,071

Goodwill and Intangible Asset67

Goodwill and Intangible Assets - Estimated Amortization Expense (Detail) $ in Thousands	Sep. 30, 2016USD ($)
Goodwill and Intangible Assets Disclosure [Abstract]
2016 (remaining)	$ 12,605
2,017	42,335
2,018	38,287
2,019	38,244
2,020	34,270
2,021	27,276
Thereafter	$ 170,894

Other Assets - Schedule of Othe

Other Assets - Schedule of Other Assets (Detail) - USD ($) $ in Thousands	Sep. 30, 2016	Dec. 31, 2015
Other Current Assets:
Income tax receivable	$ 7,754	$ 8,682
Prepaid income tax	10,825	4,755
Other	35,037	13,323
Total other current assets	53,616	26,760
Other Assets:
Deferred tax assets, net	3,025	19,252
Other	26,901	1,998
Total other assets	$ 29,926	$ 21,250

Other Liabilities - Schedule of

Other Liabilities - Schedule of Other Liabilities (Detail) - USD ($) $ in Thousands	Sep. 30, 2016	Dec. 31, 2015
Other Current Liabilities:
VAT payable	$ 6,004	$ 3,075
Customer prepayments	4,349	1,741
Product warranties	8,083	5,205
Deferred revenue	14,704	7,189
Other	40,214	18,149
Total other current liabilities	73,354	35,359
Other Liabilities:
Long-term income tax payable	14,140	4,483
Other	5,816	949
Total other liabilities	$ 19,956	$ 5,432

Debt - Additional Information (

Debt - Additional Information (Detail)	Sep. 29, 2016USD ($)	Jun. 09, 2016USD ($)	Sep. 30, 2016USD ($)Institution	Sep. 30, 2016USD ($)InstitutionSecurityLoan	Dec. 31, 2015USD ($)
Interest Rate Swap [Member]
Debt Instrument [Line Items]
Interest rate swap agreement, maturity date				Sep. 30, 2020
Interest rate swap agreement, notional amount			$ 335,000,000	$ 335,000,000
Interest rate swap agreement, credit spread rate			3.50%	3.50%
Japan [Member]
Debt Instrument [Line Items]
Borrowing capacity in the form of letters of credit			$ 22,763,000	$ 22,763,000
Number of financial institutions for available lines of credit and borrowing arrangements | Institution			2	2
Aggregate borrowings expire and renewed				3 month intervals
Total borrowings outstanding			$ 0	$ 0	$ 0
Austria [Member]
Debt Instrument [Line Items]
Number of outstanding loans | SecurityLoan				4
Interest on loans payable				Semi-annually
Minimum [Member] | Austria [Member]
Debt Instrument [Line Items]
Loan interest rate				0.75%
Maximum [Member] | Austria [Member]
Debt Instrument [Line Items]
Loan interest rate				2.00%
Revolving Lines of Credit [Member]
Debt Instrument [Line Items]
Borrowing capacity in the form of letters of credit			9,897,000	$ 9,897,000
Revolving Lines of Credit [Member] | Base Rate [Member]
Debt Instrument [Line Items]
Line of credit base interest rate				1.25%
Term Loan Credit Agreement [Member]
Debt Instrument [Line Items]
Interest expense			8,461,000	$ 11,989,000
Newport [Member] | Term Loan Credit Agreement [Member] | Secured Debt [Member]
Debt Instrument [Line Items]
Secured term loan, face amount			780,000,000	$ 780,000,000
Debt instrument, interest rate terms				Borrowings under the Term Loan Facility bear interest per annum at one of the following rates selected by the Company: (a) a base rate determined by reference to the highest of (1) the federal funds effective rate plus 0.50%, (2) the “prime rate” quoted in The Wall Street Journal, (3) a LIBOR rate determined by reference to the costs of funds for U.S. dollar deposits for an interest period of one month adjusted for certain additional costs, plus 1.00%, and (4) a floor of 1.75%, plus, in each case, an applicable margin of 3.00%; or (b) a LIBOR rate determined by reference to the costs of funds for U.S. dollar deposits for the interest period relevant to such borrowing adjusted for certain additional costs, subject to a LIBOR rate floor of 0.75%, plus an applicable margin of 4.00%. The Term Loan Facility was issued with original issue discount of 1.00% of the principal amount thereof.
Debt instrument, issue discount percentage on principal				1.00%
Newport [Member] | Term Loan Credit Agreement [Member] | Secured Debt [Member] | Federal Funds Rate [Member]
Debt Instrument [Line Items]
Debt instrument, interest rate				0.50%
Newport [Member] | Term Loan Credit Agreement [Member] | Secured Debt [Member] | Adjusted One Month LIBOR [Member]
Debt Instrument [Line Items]
Debt instrument, interest rate				1.00%
Period of Libor measurement				1 month
Newport [Member] | Term Loan Credit Agreement [Member] | Secured Debt [Member] | Floor Rate [Member] | Minimum [Member]
Debt Instrument [Line Items]
Debt instrument, interest rate				1.75%
Newport [Member] | Term Loan Credit Agreement [Member] | Secured Debt [Member] | Floor Rate [Member] | Maximum [Member]
Debt Instrument [Line Items]
Debt instrument, interest rate				3.00%
Newport [Member] | Term Loan Credit Agreement [Member] | Secured Debt [Member] | LIBOR Floor Rate [Member] | Minimum [Member]
Debt Instrument [Line Items]
Debt instrument, interest rate				0.75%
Newport [Member] | Term Loan Credit Agreement [Member] | Secured Debt [Member] | LIBOR Floor Rate [Member] | Maximum [Member]
Debt Instrument [Line Items]
Debt instrument, interest rate				4.00%
Newport [Member] | Term Loan Credit Agreement [Member] | Secured Debt Repricing Amendment [Member]
Debt Instrument [Line Items]
Secured term loan, face amount			$ 668,175,000	$ 668,175,000
Debt instrument, interest rate		2.50%
Percentage of prepayment premium fee			1.00%	1.00%
Debt instrument, prepayment premium percentage		1.00%
Debt instrument, prepayment premium		$ 7,300,000
Debt instrument, prepaid principal amount		50,000,000
Debt instrument, voluntary prepayment of principal amount	$ 60,000,000
Debt instrument, scheduled principal payment				$ 1,825,000
Deferred finance fees, original issue discount and re-pricing fee		$ 28,747,000
Newport [Member] | Term Loan Credit Agreement [Member] | Secured Debt Repricing Amendment [Member] | Interest Rate Swap [Member]
Debt Instrument [Line Items]
Interest rate swap agreement, maturity date				Sep. 30, 2020
Interest rate swap agreement, notional amount			$ 335,000,000	$ 335,000,000
Interest rate swap agreement, interest rate			1.198%	1.198%
Interest rate swap agreement, credit spread rate			3.50%	3.50%
Newport [Member] | Term Loan Credit Agreement [Member] | Secured Debt Repricing Amendment [Member] | Maximum [Member]
Debt Instrument [Line Items]
Debt instrument, quarterly payment percentage				0.25
Newport [Member] | Term Loan Credit Agreement [Member] | Secured Debt Repricing Amendment [Member] | LIBOR [Member]
Debt Instrument [Line Items]
Debt instrument, interest rate		3.50%
Newport [Member] | Asset Based Credit Agreement [Member]
Debt Instrument [Line Items]
Debt issuance cost capitalized			$ 1,201,000	$ 1,201,000
Contractual term				5 years
Newport [Member] | Asset Based Credit Agreement [Member] | Secured Debt [Member]
Debt Instrument [Line Items]
Secured term loan, face amount			$ 50,000,000	$ 50,000,000
Debt instrument, interest rate terms				Borrowings under the ABL Facility bear interest per annum at one of the following rates selected by the Company: (a) a base rate determined by reference to the highest of (1) the federal funds effective rate plus 0.50%, (2) the “prime rate” quoted in the The Wall Street Journal, and (3) a LIBOR rate determined by reference to the costs of funds for U.S. dollar deposits for an interest period of one month adjusted for certain additional costs, plus 1.00%, plus, in each case, an initial applicable margin of 0.75%; and (b) a LIBOR rate determined by reference to the costs of funds for U.S. dollar deposits for the interest period relevant to such borrowing adjusted for certain additional costs, plus an initial applicable margin of 1.75%.
Percentage of borrowing based on eligible accounts				85.00%
Percentage of borrowing based on lower of cost or market value of certain eligible inventory				65.00%
Percentage of borrowing based on net orderly liquidation value of certain eligible inventory				85.00%
Percentage of borrowing base			30.00%	30.00%
Initial commitment fee percentage				0.375%
Newport [Member] | Asset Based Credit Agreement [Member] | Secured Debt [Member] | Maximum [Member]
Debt Instrument [Line Items]
Percentage of borrowing based on book value of certain eligible accounts				70.00%
Newport [Member] | Asset Based Credit Agreement [Member] | Secured Debt [Member] | Federal Funds Rate [Member]
Debt Instrument [Line Items]
Debt instrument, interest rate				0.50%
Newport [Member] | Asset Based Credit Agreement [Member] | Secured Debt [Member] | Adjusted One Month LIBOR [Member]
Debt Instrument [Line Items]
Debt instrument, interest rate				1.00%
Period of Libor measurement				1 month
Newport [Member] | Asset Based Credit Agreement [Member] | Secured Debt [Member] | LIBOR [Member]
Debt Instrument [Line Items]
Debt instrument, interest rate				1.75%
Newport [Member] | Asset Based Credit Agreement [Member] | Secured Debt [Member] | Initial Margin Rate [Member]
Debt Instrument [Line Items]
Debt instrument, interest rate				0.75%
Newport [Member] | Asset Based Credit Agreement [Member] | Letter of Credit [Member]
Debt Instrument [Line Items]
Borrowing capacity in the form of letters of credit			$ 15,000,000	$ 15,000,000

Debt - Schedule of Short Term D

Debt - Schedule of Short Term Debt (Detail) $ in Thousands	Sep. 30, 2016USD ($)
Short-term Debt [Line Items]
Short term debt	$ 7,300
Short term debt	11,528
Other Debt [Member]
Short-term Debt [Line Items]
Short term debt	18
Japan [Member] | Line of Credit [Member]
Short-term Debt [Line Items]
Short term debt	3,958
Japan [Member] | Receivables Financing Facility [Member]
Short-term Debt [Line Items]
Short term debt	$ 252

Debt - Schedule of Long Term De

Debt - Schedule of Long Term Debt (Detail) $ in Thousands	Sep. 30, 2016USD ($)
Debt Instrument [Line Items]
Long term debt	$ 639,068
Term Loan Facility, Net [Member]
Debt Instrument [Line Items]
Long term debt	638,481
Australia [Member] | Loans Due Through March 2020 [Member]
Debt Instrument [Line Items]
Long term debt	$ 587

Debt - Schedule of Long Term 73

Debt - Schedule of Long Term Debt (Parenthetical) (Detail) - Term Loan Facility, Net [Member] $ in Thousands	Sep. 30, 2016USD ($)
Debt Instrument [Line Items]
Debt issuance discount and repricing fees	$ 22,394
Deferred financing fees	$ 22,394

Debt - Schedule of Contractual

Debt - Schedule of Contractual Maturities of Debt Obligations (Detail) $ in Thousands	Sep. 30, 2016USD ($)
Maturities of Long-term Debt [Abstract]
2016 (remaining)	$ 6,054
2,017	7,404
2,018	7,312
2,019	7,726
2,020	7,344
2,021	7,300
Thereafter	$ 629,850

Product Warranties - Product Wa

Product Warranties - Product Warranty Activities (Detail) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015
Guarantees [Abstract]
Beginning of period	$ 5,205	$ 6,266
Product warranty liability from Newport Merger	3,040
Provision for product warranties	5,067	3,527
Direct charges to warranty liability	(5,213)	(3,859)
Foreign currency translation	43	(97)
End of period	$ 8,142	$ 5,837

Product Warranties - Product 76

Product Warranties - Product Warranty Activities (Parenthetical) (Detail) - USD ($) $ in Thousands	Sep. 30, 2016	Dec. 31, 2015
Guarantees [Abstract]
Short-term product warranty	$ 8,083	$ 5,205
Long-term product warranty	$ 59

Pension Plans - Summary of Net

Pension Plans - Summary of Net Periodic Benefit Costs (Detail) - Newport [Member] - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
	Sep. 30, 2016	Sep. 30, 2016
Defined Benefit Plan Disclosure [Line Items]
Service cost	$ 596	$ 1,000
Interest cost on projected benefit obligation	121	201
Expected return on plan assets	(44)	(75)
Net periodic benefit costs	$ 673	$ 1,126

Income Taxes - Additional Infor

Income Taxes - Additional Information (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015	Dec. 31, 2015
Income Taxes [Line Items]
Effective tax rate	23.00%	29.30%	24.40%	29.10%
Gross unrecognized tax benefits excluding interest and penalties	$ 30,567		$ 30,567		$ 4,332
Net unrecognized tax benefit excluding interest and penalties that would impact effective tax rate	19,399		19,399
Accrued interest on unrecognized tax benefits	$ 738		738		$ 157
Net unrecognized tax benefits, excluding interest and penalties, related to foreign tax positions			$ 3,370
Income tax examination, description			The Company and its subsidiaries are subject to examination by U.S. federal, state and foreign tax authorities. The United States Internal Revenue Service commenced an examination of the Company's U.S. federal tax filings for tax years 2011 through 2013 during the quarter ended March 31, 2015.
Earliest Tax Year [Member] | Internal Revenue Service (IRS) [Member]
Income Taxes [Line Items]
Open tax year			2,011

Interest and Other (Expense) 79

Interest and Other (Expense) Income, Net - Summary of Interest and Other (Expense) Income, Net (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Interest Income (Expense), Net [Abstract]
Interest income	$ 404	$ 778	$ 1,859	$ 2,147
Other income	1,544		1,583
Interest expense	(12,007)	(57)	(20,527)	(132)
Impact of foreign exchange (expense) income	(701)		753
Interest and other (expense) income, net	$ (10,760)	$ 721	$ (16,332)	$ 2,015

Interest and Other (Expense) 80

Interest and Other (Expense) Income, Net - Additional Information (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Interest And Other Expense Income [Line Items]
Foreign exchange income (expense)	$ (701)		$ 753
Selling, General and Administrative Expenses [Member]
Interest And Other Expense Income [Line Items]
Foreign exchange income (expense)		$ 836		$ 288

Net Income Per Share - Computat

Net Income Per Share - Computation of Basic and Diluted Net Income Per Share (Detail) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Numerator:
Net income	$ 32,549	$ 29,769	$ 59,322	$ 96,775
Denominator:
Shares used in net income per common share - basic	53,574,000	53,314,000	53,423,000	53,304,000
Effect of dilutive securities:
Stock options, restricted stock, stock appreciation rights and employee stock purchase plan	741,000	254,000	472,000	258,000
Shares used in net income per common share - diluted	54,315,000	53,568,000	53,895,000	53,562,000
Net income per common share:
Basic	$ 0.61	$ 0.56	$ 1.11	$ 1.82
Diluted	$ 0.60	$ 0.56	$ 1.10	$ 1.81

Stockholder's Equity - Addition

Stockholder's Equity - Additional Information (Detail) - USD ($)	Oct. 24, 2016	Jul. 25, 2011	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Sep. 30, 2016	Sep. 30, 2015
Stockholders Equity [Line Items]
Common stock, value of shares authorized to repurchase		$ 200,000,000
Stock repurchase, shares		1,770,000							45,000	244,000
Value of shares repurchased		$ 52,000,000							$ 1,545,000	$ 8,866,000
Average price of repurchased shares									$ 34.50	$ 36.32
Cash dividends per common share			$ 0.170	$ 0.170	$ 0.170	$ 0.170	$ 0.170	$ 0.165	$ 0.510	$ 0.505
Dividend payment to common shareholders			$ 27,249,000	$ 27,249,000	$ 27,249,000	$ 26,928,000	$ 26,928,000	$ 26,928,000	$ 27,249,000	$ 26,928,000
Subsequent Event [Member]
Stockholders Equity [Line Items]
Dividend declared date	Oct. 24, 2016
Cash dividend to be paid	$ 0.17
Dividend to be paid date	Dec. 9, 2016
Dividend declared, shareholders of record date	Nov. 28, 2016

Stock-Based Compensation - Addi

Stock-Based Compensation - Additional Information (Detail) - USD ($) $ / shares in Units, $ in Thousands	Apr. 29, 2016	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Common stock reserved for issuance		18,000,000		18,000,000
Total compensation expense related to unvested stock-based awards granted to employees, officers and directors		$ 29,283		$ 29,283
Stock options and restricted stock units, outstanding			752,000		752,000
Restricted Stock Units (RSUs) [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Anti-dilutive weighted-average restricted stock units excluded from computation of diluted weighted-average shares		529,000		401,000
Restricted Stock Units (RSUs) [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares issued as per merger agreement				1,260,525
Number of RSUs outstanding				17,462
Dividend reinvestment				136
Restricted stock units, granted				740,985
Restricted stock units, weighted average grant date fair value				$ 35.51
Anti-dilutive weighted-average restricted stock units excluded from computation of diluted weighted-average shares			0		0
Restricted Stock Units (RSUs) [Member] | Newport Deferred Compensation [Member] | Outside Directors [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Newport RSUs converted to MKS RSUs at Merger date				36,599
Newport RSUs converted to MKS RSUs at Merger date and released				19,137
Stock Appreciation Rights (SARs) [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted stock units, granted				0
Anti-dilutive weighted-average restricted stock units excluded from computation of diluted weighted-average shares		213,000		181,000
Stock Options [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Anti-dilutive weighted-average restricted stock units excluded from computation of diluted weighted-average shares			0		0
Newport [Member] | Restricted Stock Units (RSUs) [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares issued as per merger agreement	360,674
Newport [Member] | Stock Appreciation Rights (SARs) [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares issued as per merger agreement	899,851

Stock-Based Compensation - Sche

Stock-Based Compensation - Schedule of Total Stock-Based Compensation Expense Included in Company's Consolidated Statements of Income and Comprehensive Income (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]
Total pre-tax stock-based compensation expense	$ 5,158	$ 3,247	$ 19,826	$ 10,025
Cost of Revenues [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]
Total pre-tax stock-based compensation expense	666	432	1,996	1,489
Research and Development Expense [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]
Total pre-tax stock-based compensation expense	551	405	1,614	1,255
Selling, General and Administrative Expenses [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]
Total pre-tax stock-based compensation expense	$ 3,941	$ 2,410	$ 16,216	$ 7,281

Stock-Based Compensation - Summ

Stock-Based Compensation - Summary of Activity for RSUs (Detail)	9 Months Ended
	Sep. 30, 2016$ / sharesshares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Non-vested RSUs - end of period	712,284
Restricted Stock Units (RSUs) [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Non-vested RSUs - beginning of period	733,162
Assumed RSUs from Newport Merger	360,674
Granted	740,985
Vested	(452,251)
Forfeited	(55,474)
Non-vested RSUs - end of period	1,327,232
Weighted Average Grant Date Fair Value, Beginning of period | $ / shares	$ 30.94
Weighted Average Grant Date Fair Value, Assumed RSUs from Newport Merger | $ / shares	35.01
Weighted Average Grant Date Fair Value, Granted | $ / shares	35.51
Weighted Average Grant Date Fair Value, Vested | $ / shares	31.18
Weighted Average Grant Date Fair Value, Forfeited | $ / shares	33.74
Weighted Average Grant Date Fair Value, end of period | $ / shares	$ 34.40
Shares [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Accrued dividend shares	136
Weighted Average Grant Date Fair Value, Accrued dividend shares | $ / shares	$ 43.64

Stock-Based Compensation - Su86

Stock-Based Compensation - Summary of Activity for Outstanding and Exercisable Stock Appreciation Rights (Detail)	9 Months Ended
	Sep. 30, 2016USD ($)$ / sharesshares
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Stock appreciation rights outstanding | shares	712,284
Stock appreciation rights exercisable | shares	482,001
Weighted Average Base Value, Stock appreciation rights outstanding | $ / shares	$ 27.86
Weighted Average Base Value, Stock appreciation rights exercisable | $ / shares	$ 26.52
Weighted Average Remaining Contractual Life, Stock appreciation rights outstanding	4 years 1 month 6 days
Weighted Average Remaining Contractual Life, Stock appreciation rights exercisable	3 years 6 months
Aggregate Intrinsic Value, Stock appreciation rights outstanding | $	$ 15,581
Aggregate Intrinsic Value, Stock appreciation rights exercisable | $	$ 11,185

Business Segment, Geographic 87

Business Segment, Geographic Area, Product and Significant Customer Information - Additional Information (Detail)	9 Months Ended
	Sep. 30, 2016SegmentCustomer
Segment Reporting [Abstract]
Number of reportable segments | Segment	2
Number of customers with net revenues greater than 10% of total net revenues | Customer	2
Entity wide net revenue major customer percentage minimum	10.00%

Business Segment, Geographic 88

Business Segment, Geographic Area, Product and Significant Customer Information - Net Revenues by Reportable Segment (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Segment Reporting Information [Line Items]
Total net revenues	$ 380,660	$ 209,332	$ 890,202	$ 641,137
Vacuum & Analysis Division [Member]
Segment Reporting Information [Line Items]
Total net revenues	229,167	$ 209,332	620,207	$ 641,137
Light & Motion Division [Member]
Segment Reporting Information [Line Items]
Total net revenues	$ 151,493		$ 269,995

Business Segment, Geographic 89

Business Segment, Geographic Area, Product and Significant Customer Information - Reconciliation of Segment Gross Profit to Consolidated Net Income (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Segment Reporting Information [Line Items]
Gross profit	$ 168,385	$ 94,229	$ 382,211	$ 290,073
Research and development	32,268	17,217	77,709	51,464
Selling, general and administrative	70,424	33,396	175,803	97,532
Acquisition costs	233		10,932	30
Restructuring		562	24	1,569
Amortization of intangible assets	12,452	1,691	22,990	5,071
Income from operations	53,008	41,363	94,753	134,407
Interest and other (expense) income, net	(10,760)	721	(16,332)	2,015
Income before income taxes	42,248	42,084	78,421	136,422
Provision for income taxes	9,699	12,315	19,099	39,647
Net income	32,549	29,769	59,322	96,775
Vacuum & Analysis Division [Member]
Segment Reporting Information [Line Items]
Gross profit	104,232	$ 94,229	273,004	$ 290,073
Light & Motion Division [Member]
Segment Reporting Information [Line Items]
Gross profit	$ 64,153		$ 109,207

Business Segment, Geographic 90

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	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Segment Reporting Information [Line Items]
Capital expenditures	$ 4,695	$ 3,497	$ 11,959	$ 8,831
Depreciation and amortization	22,049	5,524	43,757	16,606
Vacuum & Analysis Division [Member]
Segment Reporting Information [Line Items]
Capital expenditures	2,772	3,497	7,964	8,831
Depreciation and amortization	5,142	$ 5,524	15,628	$ 16,606
Light & Motion Division [Member]
Segment Reporting Information [Line Items]
Capital expenditures	1,923		3,995
Depreciation and amortization	$ 16,907		$ 28,129

Business Segment, Geographic 91

Business Segment, Geographic Area, Product and Significant Customer Information - Segment Assets by Reportable Segment (Detail) - USD ($) $ in Thousands	Sep. 30, 2016	Dec. 31, 2015
Segment Reporting Information [Line Items]
Accounts receivable	$ 243,853	$ 101,883
Inventory	278,965	152,631
Total assets	2,241,665	1,273,347
Operating Segments [Member]
Segment Reporting Information [Line Items]
Accounts receivable	243,853	101,883
Inventory	278,965	152,631
Total assets	522,818	254,514
Operating Segments [Member] | Vacuum & Analysis Division [Member]
Segment Reporting Information [Line Items]
Accounts receivable	136,654	101,883
Inventory	161,219	152,631
Total assets	297,873	$ 254,514
Operating Segments [Member] | Light & Motion Division [Member]
Segment Reporting Information [Line Items]
Accounts receivable	128,401
Inventory	117,746
Total assets	246,147
Operating Segments [Member] | Corporate & Eliminations [Member]
Segment Reporting Information [Line Items]
Accounts receivable	(21,202)
Total assets	$ (21,202)

Business Segment, Geographic 92

Business Segment, Geographic Area, Product and Significant Customer Information - Reconciliation of Segment Assets to Consolidated Total Assets (Detail) - USD ($) $ in Thousands	Sep. 30, 2016	Dec. 31, 2015
Segment Reporting, Asset Reconciling Item [Line Items]
Consolidated total assets	$ 2,241,665	$ 1,273,347
Property, plant and equipment, net	179,694	68,856
Other assets	29,926	21,250
Operating Segments [Member]
Segment Reporting, Asset Reconciling Item [Line Items]
Consolidated total assets	522,818	254,514
Segment Reconciling Items [Member]
Segment Reporting, Asset Reconciling Item [Line Items]
Cash and cash equivalents and investments	435,234	658,237
Other current assets, including restricted cash	59,547	26,760
Property, plant and equipment, net	179,694	68,856
Goodwill and intangible assets, net	1,014,446	243,730
Other assets	$ 29,926	$ 21,250

Business Segment, Geographic 93

Business Segment, Geographic Area, Product and Significant Customer Information - Summary of Goodwill Associated with Reportable Segments (Detail) - USD ($) $ in Thousands	Sep. 30, 2016	Dec. 31, 2015	Dec. 31, 2014
Segment Reporting Information [Line Items]
Goodwill	$ 594,635	$ 199,703	$ 192,381
Vacuum & Analysis Division [Member]
Segment Reporting Information [Line Items]
Goodwill	200,368	$ 199,703
Light & Motion Division [Member]
Segment Reporting Information [Line Items]
Goodwill	$ 394,267

Business Segment, Geographic 94

Business Segment, Geographic Area, Product and Significant Customer Information - Worldwide Net Revenue for Each Group of Products (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Revenue from External Customer [Line Items]
Net sales from product groups	$ 380,660	$ 209,332	$ 890,202	$ 641,137
Instruments, Control & Vacuum Products [Member]
Revenue from External Customer [Line Items]
Net sales from product groups	114,491	98,614	317,141	319,491
Power & Reactive Gas Products [Member]
Revenue from External Customer [Line Items]
Net sales from product groups	98,827	95,311	259,797	276,787
Analytical Solutions Products [Member]
Revenue from External Customer [Line Items]
Net sales from product groups	15,907	$ 15,407	43,334	$ 44,859
Photonics Products [Member]
Revenue from External Customer [Line Items]
Net sales from product groups	62,226		108,090
Optics Products [Member]
Revenue from External Customer [Line Items]
Net sales from product groups	44,331		79,594
Lasers Products [Member]
Revenue from External Customer [Line Items]
Net sales from product groups	$ 44,878		$ 82,246

Business Segment, Geographic 95

Business Segment, Geographic Area, Product and Significant Customer Information - Schedule of Net Revenues and Long-Lived Assets by Geographic Regions (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015	Dec. 31, 2015
Revenues from External Customers and Long-Lived Assets [Line Items]
Net revenues	$ 380,660	$ 209,332	$ 890,202	$ 641,137
Long-lived assets	201,748		201,748		$ 71,329
North America [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net revenues	198,305	122,348	460,994	365,942
Long-lived assets	120,379		120,379		56,594
Korea [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net revenues	32,642	27,760	79,240	87,181
Japan [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net revenues	26,970	14,699	68,738	49,001
Asia (Excluding Korea and Japan) [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net revenues	75,179	24,833	173,526	79,259
Long-lived assets	50,551		50,551		8,952
Europe [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net revenues	47,564	$ 19,692	107,704	$ 59,754
Long-lived assets	$ 30,818		$ 30,818		$ 5,783

Business Segment, Geographic 96

Business Segment, Geographic Area, Product and Significant Customer Information - Customers with Net Revenues Greater than 10% of Total Net Revenues (Detail) - Customer Concentration Risk [Member] - Sales Revenue, Net [Member]	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Applied Materials, Inc [Member]
Revenue, Major Customer [Line Items]
Percentage of total net revenues	12.00%	18.00%	14.00%	18.00%
LAM Research Corporation [Member]
Revenue, Major Customer [Line Items]
Percentage of total net revenues	9.00%	16.00%	11.00%	14.00%