MKS Instruments (MKSI) 10-K 28 Feb 22 2021 FY Annual report Financial data

Cover Page

Cover Page - USD ($)	12 Months Ended
	Dec. 31, 2021	Feb. 11, 2022	Jun. 30, 2021
Cover [Abstract]
Amendment Flag	false
Document Type	10-K
Document Annual Report	true
Document Fiscal Year Focus	2021
Document Fiscal Period Focus	FY
Document Transition Report	false
Current Fiscal Year End Date	--12-31
Entity Well-known Seasoned Issuer	Yes
Entity Voluntary Filers	No
Document Period End Date	Dec. 31, 2021
Entity Interactive Data Current	Yes
Entity Current Reporting Status	Yes
Entity Registrant Name	MKS INSTRUMENTS, INC.
Entity Central Index Key	0001049502
Trading Symbol	MKSI
Entity Filer Category	Large Accelerated Filer
Entity Shell Company	false
Entity Emerging Growth Company	false
Entity Small Business	false
Entity Common Stock, Shares Outstanding		55,517,182
Entity Public Float			$ 9,867,033,883
Entity File Number	0-23621
Entity Tax Identification Number	04-2277512
Entity Address, Address Line One	2 Tech Drive, Suite 201,
Entity Address, City or Town	Andover
Entity Address, State or Province	MA
Entity Address, Postal Zip Code	01810
Entity Incorporation, State or Country Code	MA
City Area Code	978
Local Phone Number	645-5500
Security Exchange Name	NASDAQ
Title of 12(b) Security	Common Stock
ICFR Auditor Attestation Flag	true
Auditor Firm ID	238
Auditor Name	PricewaterhouseCoopers LLP
Auditor Location	Boston, Massachusetts
Documents Incorporated by Reference	Portions of the definitive Proxy Statement for our 2022 Annual Meeting of Shareholders, to be filed with the Securities and Exchange Commission no later than 120 days after the close of our fiscal year ended December 31, 2021, are incorporated by reference into Part III of this Annual Report on Form 10-K.

Consolidated Balance Sheets

Consolidated Balance Sheets - USD ($) $ in Millions	Dec. 31, 2021	Dec. 31, 2020
Current assets:
Cash and cash equivalents	$ 966.3	$ 608.3
Short-term investments	76.4	227.7
Trade accounts receivable, net of allowance for doubtful accounts of $3.6 and $2.0 at December 31, 2021 and 2020, respectively	442.6	392.7
Inventories	576.7	501.4
Other current assets	85.3	74.3
Total current assets	2,147.3	1,804.4
Property, plant and equipment, net	325.3	284.3
Right-of-use assets	184.3	184.4
Goodwill	1,228.2	1,066.4
Intangible assets, net	576	512.2
Long-term investments	6.2	6.5
Other assets	73	45.6
Total assets	4,540.3	3,903.8
Current liabilities:
Short-term debt	9	14.5
Accounts payable	168.1	110.6
Accrued compensation	131.9	117.9
Income taxes payable	25.1	18.3
Lease liabilities	18	15.8
Deferred revenue and customer advances	37.5	31.2
Other current liabilities	71.2	65.6
Total current liabilities	460.8	373.9
Long-term debt, net	807.9	815
Non-current deferred taxes	99.1	59.2
Non-current accrued compensation	49.3	49.5
Non-current lease liability	192.6	187.4
Other non-current liabilities	44	57.9
Total liabilities	1,653.7	1,542.9
Commitments and contingencies (Note 23)
Stockholders’ equity:
Preferred stock, $0.01 par value, 2 shares authorized; none issued and outstanding
Common stock, no par value, 200 shares authorized; 55.5 and 55.2 shares issued and outstanding at December 31, 2021 and 2020, respectively	0.1	0.1
Additional paid-in capital	906.7	873.2
Retained earnings	1,991	1,487.3
Accumulated other comprehensive (loss) income	(11.2)	0.3
Total stockholders’ equity	2,886.6	2,360.9
Total liabilities and stockholders' equity	$ 4,540.3	$ 3,903.8

Consolidated Balance Sheets (Pa

Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Millions	Dec. 31, 2021	Dec. 31, 2020
Statement Of Financial Position [Abstract]
Allowance for doubtful accounts	$ 3.6	$ 2
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	55,500,000	55,200,000
Common stock, shares outstanding	55,500,000	55,200,000

Consolidated Statements of Oper

Consolidated Statements of Operations and Comprehensive Income - USD ($) shares in Millions, $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Net revenues:
Net revenues	$ 2,949.6	$ 2,330	$ 1,899.8
Cost of revenues:
Cost of revenues	1,569.4	1,280.5	1,069.4
Gross profit	1,380.2	1,049.5	830.4
Research and development	200	173.1	164.1
Selling, general and administrative	385.1	353.1	330.3
Acquisition and integration costs	29.8	3.8	37.3
Restructuring and other	11.1	9.4	7
Amortization of intangible assets	55.3	55.2	67.4
Asset impairment		2.3	4.7
COVID-19 related net credits		(1.2)
Fees and expenses related to repricing of Term Loan Facility			6.6
Gain on sale of long-lived assets			(6.8)
Income from operations	698.9	453.8	219.8
Interest income	0.6	1.4	5.4
Interest expense	25.4	29.1	44.1
Other expense, net	8.6	3.1	3.3
Income before income taxes	665.5	423	177.8
Provision for income taxes	114.1	72.9	37.4
Net income	551.4	350.1	140.4
Other comprehensive income, net of tax:
Changes in value of financial instruments designated as cash flow hedges	20	(10.6)	(10)
Foreign currency translation adjustments	(31.5)	34.7	(6.2)
Unrecognized pension loss		(1.7)	(0.5)
Unrealized gain on investments		0.2
Total comprehensive income	$ 539.9	$ 372.7	$ 123.7
Net income per share:
Basic	$ 9.95	$ 6.36	$ 2.57
Diluted	$ 9.90	$ 6.33	$ 2.55
Weighted average common shares outstanding:
Basic	55.4	55.1	54.7
Diluted	55.7	55.3	55.1
Products [Member]
Net revenues:
Net revenues	$ 2,578.6	$ 2,014.8	$ 1,611.3
Cost of revenues:
Cost of revenues	1,370.9	1,106.4	913.5
Services [Member]
Net revenues:
Net revenues	371	315.2	288.5
Cost of revenues:
Cost of revenues	$ 198.5	$ 174.1	$ 155.9

Consolidated Statements of Stoc

Consolidated Statements of Stockholders' Equity - USD ($) $ in Millions		Total	Common Stock [Member]	Additional Paid-In Capital [Member]	Retained Earnings [Member]	Accumulated Other Comprehensive (Loss) Income [Member]
Beginning Balance at Dec. 31, 2018		$ 1,873.2	$ 0.1	$ 793.9	$ 1,084.8	$ (5.6)
Beginning Balance, Shares at Dec. 31, 2018			54
Net issuance under stock-based plans		(11)		(11)
Net issuance under stock-based plans, shares			0.6
Settlement of share-based compensation awards	[1]	30.6		30.6
Stock-based compensation		50.3		50.3
Cash dividend		(43.5)			(43.5)
Stock dividends accrued				0.5	(0.5)
Comprehensive income (net of tax):
Net income		140.4			140.4
Other comprehensive income (loss)		(16.7)				(16.7)
Ending Balance at Dec. 31, 2019		2,023.3	$ 0.1	864.3	1,181.2	(22.3)
Ending Balance, Shares at Dec. 31, 2019			54.6
Net issuance under stock-based plans		(20.7)		(20.7)
Net issuance under stock-based plans, shares			0.6
Stock-based compensation		29.6		29.6
Cash dividend		(44)			(44)
Comprehensive income (net of tax):
Net income		350.1			350.1
Other comprehensive income (loss)		22.6				22.6
Ending Balance at Dec. 31, 2020		2,360.9	$ 0.1	873.2	1,487.3	0.3
Ending Balance, Shares at Dec. 31, 2020			55.2
Net issuance under stock-based plans		(3.3)		(3.3)
Net issuance under stock-based plans, shares			0.3
Stock-based compensation		36.7		36.7
Cash dividend		(47.6)			(47.6)
Stock dividends accrued				0.1	(0.1)
Comprehensive income (net of tax):
Net income		551.4			551.4
Other comprehensive income (loss)		(11.5)				(11.5)
Ending Balance at Dec. 31, 2021		$ 2,886.6	$ 0.1	$ 906.7	$ 1,991	$ (11.2)
Ending Balance, Shares at Dec. 31, 2021			55.5
[1]	Represents the vested but unissued portion of Electro Scientific Industries, Inc. (“ESI”) share-based compensation awards as of the acquisition date of February 1, 2019 as described further in Note 5.

Consolidated Statements of St_2

Consolidated Statements of Stockholders' Equity (Parenthetical) - $ / shares	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Statement Of Stockholders Equity [Abstract]
Cash dividend, per common share	$ 0.86	$ 0.80	$ 0.80

Consolidated Statements of Cash

Consolidated Statements of Cash Flows - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Cash flows from operating activities:
Net income	$ 551.4	$ 350.1	$ 140.4
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	104.1	99.2	110
Unrealized (gain) loss on derivatives not designated as hedging instruments	(4.2)	(0.4)	0.1
Amortization of inventory step-up adjustment to fair value			7.6
Amortization of debt issuance costs and original issue discount	2.3	2.7	7.1
Stock-based compensation	36.7	29.5	49.2
Provision for excess and obsolete inventory	16.2	24.8	24.7
Deferred income taxes	1.2	(7.1)	(4.2)
Asset impairment		2.3	4.7
Other	3.3	0.7	(6.6)
Changes in operating assets and liabilities, net of businesses acquired:
Trade accounts receivable	(52.7)	(44.8)	(0.1)
Inventories	(91.7)	(52.2)	(29.3)
Income taxes payable	1.3	21.6	(12.4)
Other current and non-current assets	(0.3)	40.9	(9.8)
Current and non-current accrued compensation	17	19.4	(4.2)
Other current and non-current liabilities	(0.6)	5.5	(8.5)
Accounts payable	55.5	21	(24.2)
Net cash provided by operating activities	639.5	513.2	244.5
Cash flows from investing activities:
Acquisitions of businesses, net of cash acquired	(268.4)		(988.6)
Purchases of investments	(497)	(522.4)	(246.3)
Maturities of investments	478.3	332.4	142.6
Sales of investments	169.2	72.5	166.9
Proceeds from sale of assets			42.1
Purchases of property, plant and equipment	(86.7)	(84.9)	(63.9)
Net cash used in investing activities	(204.6)	(202.4)	(947.2)
Cash flows from financing activities:
Net proceeds from short and long-term borrowings	1	27	642.2
Payments of short and long-term borrowings	(15.2)	(83.8)	(111.5)
Net payments related to employee stock awards	(3.3)	(20.7)	(11)
Dividend payments	(47.6)	(44)	(43.5)
Net cash (used in) provided by financing activities	(65.1)	(121.5)	476.2
Effect of exchange rate changes on cash and cash equivalents	(11.8)	4.4	(3.2)
Increase (decrease) in cash and cash equivalents	358	193.7	(229.7)
Cash and cash equivalents at beginning of period	608.3	414.6	644.3
Cash and cash equivalents at end of period	966.3	608.3	414.6
Cash paid during the period for:
Interest	23	26.3	39.9
Income taxes	$ 109.9	$ 65.6	$ 35.5

Business Description

Business Description	12 Months Ended
	Dec. 31, 2021
Organization Consolidation And Presentation Of Financial Statements [Abstract]
Business Description	1) Business Description MKS Instruments, Inc. (“MKS” or the “Company”) was founded in 1961 and is a global provider of instruments, systems, subsystems and process control solutions that measure, monitor, deliver, analyze, power and control critical parameters of advanced manufacturing processes to improve process performance and productivity for its customers. The Company’s products are derived from its core competencies in pressure measurement and control, flow measurement and control, gas and vapor delivery, gas composition analysis, electronic control technology, reactive gas generation and delivery, power generation and delivery, vacuum technology, temperature sensing, lasers, photonics, optics, precision motion control, vibration control and laser-based manufacturing systems solutions. The Company also provides services relating to the maintenance and repair of its products, installation services and training. The Company’s primary served markets include semiconductor, industrial technologies, life and health sciences, and research and defense.

Basis of Presentation

Basis of Presentation	12 Months Ended
	Dec. 31, 2021
Organization Consolidation And Presentation Of Financial Statements [Abstract]
Basis of Presentation	2) Basis of Presentation The consolidated financial statements include the accounts of MKS Instruments, Inc. and its wholly owned subsidiaries. All intercompany accounts and transactions have been eliminated in consolidation. The consolidated financial statements have been prepared in accordance with accounting principles generally accepted in the United States of America (“U.S. GAAP”). The preparation of these financial statements requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and the disclosure of contingent liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting period. On an on-going basis, management evaluates its estimates and judgments, including those related to revenue recognition and allowance for doubtful accounts, inventory valuation, warranty costs, pension plan valuations, stock-based compensation, intangible assets, goodwill, other long-lived assets, in process research and development and income taxes. Management bases its estimates and judgments on historical experience and on various other factors that are believed to be reasonable under the circumstances, the results of which form the basis for making judgments about the carrying values of assets and liabilities that are not readily apparent from other sources. Actual results may differ from these estimates under different assumptions or conditions.

Summary of Significant Accounti

Summary of Significant Accounting Policies	12 Months Ended
	Dec. 31, 2021
Accounting Policies [Abstract]
Summary of Significant Accounting Policies	3) Summary of Significant Accounting Policies Revenue from Contracts with Customers The Company accounts for revenue using Accounting Standards Codification (“ASC”) 606 (“ASC 606”). The Company applies ASC 606 using the following steps: • Identify the contract with a customer • Identify the performance obligations in the contract • Determine the transaction price • Allocate the transaction price to performance obligations in the contract • Recognize revenue when or as the Company satisfies a performance obligation Revenue is recognized when or as obligations under the terms of a contract with the Company’s customer has been satisfied and control has transferred to the customer. The majority of the Company’s performance obligations, and associated revenue, are transferred to customers at a point in time, generally upon shipment of a product to the customer or receipt of the product by the customer and without significant judgments. Installation services are not significant and are usually completed in a short period of time (normally less than two weeks) and therefore, recorded at a point in time when the installation services are completed, rather than over time as they are not material. Extended warranty, service contracts, and repair services, which are transferred to the customer over time, are recorded as revenue as the services are performed. For repair services, the Company makes an accrual at quarter end based upon historical repair times within its product groups to record revenue based upon the estimated number of days completed to date, which is consistent with ratable recognition. Customized products with no alternative future use to the Company, and that have an enforceable right to payment for performance completed to date, are also recorded over time. The Company considers this to be a faithful depiction of the transfer to the customer of revenue over time as the work is performed or service is delivered, ratably over time. These adjustments were not material for 202 1 or 20 20 . Revenue is measured as the amount of consideration the Company expects to receive in exchange for transferring goods or providing services. Performance obligations promised in a contract are identified based on the products or services that will be transferred to the customer that are both capable of being distinct, whereby the customer can benefit from the product or service either on its own or together with other resources that are readily available from third parties or from the Company, and are distinct in the context of the contract, whereby the transfer of the product or service is separately identifiable from other promises in the contract. Sales, value add, and other taxes the Company collects concurrent with revenue-producing activities are excluded from revenue. The Company’s normal payment terms are 30 to 60 days, but vary by the type and location of its customers and the products or services offered. For certain products and services and customer types, the Company requires payment before the products or services are delivered to, or performed for, the customer. None of the Company’s contracts as of December 31, 2021 contained a significant financing component. Contracts with Multiple Performance Obligations The Company periodically enters into contracts with its customers in which a customer may purchase a combination of goods and or services, such as products with installation services or extended warranties. These contracts include multiple promises that the Company evaluates to determine if the promises are separate performance obligations. Once the Company determines the performance obligations, the Company then determines the transaction price, which includes estimating the amount of variable consideration to be included in the transaction price, if any. To the extent the transaction price includes variable consideration, the Company estimates the amount of variable consideration that should be included in the transaction price utilizing either the expected value method or the most likely amount method depending on the method the Company expects to better predict the amount of consideration to which it will be entitled. There are no constraints on the variable consideration recorded. The Company then allocates the transaction price to each performance obligation in the contract based on a relative stand-alone selling price charged separately to customers or using an expected cost-plus-margin method. The corresponding revenues are recognized when or as the related performance obligations are satisfied, which are noted above. The impact of variable consideration was immaterial during 2021, 2020 and 2019. Deferred Revenues The Company’s standard assurance warranty period is normally 12 to 24 months. The Company sells separately priced service contracts and extended warranty contracts related to certain of its products. The separately priced contracts generally range from 12 to 60 months. The Company normally receives payment at the inception of the contract and recognizes revenue over the term of the agreement in proportion to the costs expected to be incurred in satisfying the obligations under the contract. The Company has elected to use the practical expedient related to disclosing the remaining performance obligations as of December 31, 2021 and 2020, as the majority have a duration of less than one year. Costs to Obtain and Fulfill a Contract The Company expenses sales commissions when incurred because the amortization period would have been one year or less. These costs are recorded within selling, general and administration expenses. The Company has elected to recognize the costs for freight and shipping when control over products has transferred to the customer as an expense in cost of sales. Product revenues, excluding revenue from certain custom products, is recorded at a point in time, while the majority of service revenues and revenue from certain custom products is recorded over time. Accounts Receivable Allowances Accounts receivable allowances include sales returns and bad debt allowances. The Company monitors and tracks the amount of product returns and reduces revenue at the time of shipment for the estimated amount of such future returns, based on historical experience. The Company makes estimates evaluating its allowance for doubtful accounts. The Company continuously monitors collections and payments from its customers and maintains a provision for estimated credit losses based upon its historical experience and any specific customer collection issues that it has identified. Research and Development Research and development costs are expensed as incurred and consist mainly of compensation-related expenses and project materials. The Company’s research and development efforts include numerous projects, which generally have a duration of 3 to 30 months. Acquired in-process research and development (“IPR&D”) expenses, if acquired in a business combination, are capitalized at fair value as an intangible asset until the related project is completed, are then amortized over the estimated useful life of the product. The Company monitors projects and, if they are abandoned, the Company writes them off. Advertising Costs Advertising costs are expensed as incurred and were immaterial in 2021, 2020 and 2019. Leases The Company accounts for leases under ASC 842, “Leases”. Under ASC 842, a contract is or contains a lease when the Company has the right to control the use of the identified asset. The Company determines if an arrangement is a lease at inception of the contract, which is the date on which the terms of the contract are agreed to and the agreement creates enforceable rights and obligations. The commencement date of the lease is the date that the lessor makes an underlying asset available for use. The Company determines if the lease is an operating or finance lease at the lease commencement date based upon the terms of the lease and the nature of the asset. The lease term used to calculate the lease liability includes options to extend or terminate the lease when it is reasonably certain that the option will be exercised. The Company does not have material financing leases. The Company measures the lease liability as the present value of future lease payments, discounted using the discount rate for the lease at the commencement date. The Company is typically unable to determine the implicit interest rate, so it uses an incremental borrowing rate based on the lease term and economic environment at commencement date. The ROU asset is initially measured as the amount of the lease liability, adjusted for any initial lease costs, prepaid lease payments and reduced by any lease incentives. The Company’s contracts often include non-lease components such as common area maintenance. MKS has elected the practical expedient to account for the lease and non-lease components as a single lease component. For leases with a term of one year or less the Company has elected not to record the lease asset or liability. The lease payments are recognized in the consolidated statement of earnings on a straight-line basis over the lease term. The Company includes lease costs within cost of revenues and operating expenses. Stock-Based Compensation The accounting for share-based compensation expense requires the measurement and recognition of compensation expense for all share-based payment awards made to employees and directors based on estimated fair values. For restricted stock units (“RSUs”), the fair value is measured on the date of grant and expensed normally over a three-year ESPP Management determined that blended volatility, a combination of historical and implied volatility, is more reflective of market conditions and a better indicator of expected volatility than historical or implied volatility alone. The assumptions used in calculating the fair value of share-based payment awards represent management’s best estimates, but these estimates involve inherent uncertainties and the application of management judgment. As a result, if factors change and the Company uses different assumptions, stock-based compensation expense could be materially different in the future. Accumulated Other Comprehensive Income For foreign subsidiaries where the functional currency is the local currency, assets and liabilities are translated into U.S. dollars at the current exchange rate on the balance sheet date. Revenue and expenses are translated at average rates of exchange prevailing during the year. Translation adjustments resulting from this process are recorded to Accumulated Other Comprehensive Income ( “ ” Net Income Per Share Basic net income per share is based on the weighted average number of common shares outstanding and diluted net income per share is based on the weighted average number of common shares outstanding and all potential dilutive common equivalent shares outstanding. The dilutive effect of equity awards are determined under the treasury stock method using the average market price for the period. Common equivalent shares are included in the per share calculations when the effect of their inclusion would be dilutive. Cash and Cash Equivalents and Investments All highly liquid investments with a maturity date of three months or less at the date of purchase are considered to be cash equivalents. The appropriate classification of investments in securities is determined at the time of purchase. Debt securities that the Company does not have the intent and ability to hold to maturity are classified as “available-for-sale” and are carried at fair value. The Company classifies investments with maturity dates greater than twelve months in short-term investments rather than long-term investments. This method classifies these securities as current based on the nature of the securities and the availability for use in current operations. The Company believes this method is preferable because it is more reflective of the Company’s assessment of its overall liquidity position. The Company reviews its investment portfolio on a quarterly basis to identify and evaluate individual investments that have indications of possible impairment. The factors considered in determining whether a loss is other-than-temporary include: the length of time and extent to which fair market value has been below the cost basis, the financial condition and near-term prospects of the issuer, credit quality, and the Company’s ability to hold the investment for a period of time sufficient to allow for any anticipated recovery in fair value. Concentrations of Credit Risk The Company’s significant concentrations of credit risk consist principally of cash and cash equivalents, investments, forward exchange contracts, interest rate swaps and trade accounts receivable. The Company maintains cash and cash equivalents with financial institutions, including some banks with which it had borrowings. The Company maintains investments primarily in U.S. Treasury and government agency securities and corporate debt securities. The Company enters into forward currency contracts with high credit-quality financial institutions in order to minimize credit risk exposure. The Company’s largest customers are primarily concentrated in the semiconductor industry, and a limited number of these customers account for a significant portion of the Company’s revenues. The Company regularly monitors the creditworthiness of its customers and believes it has adequately provided for potential credit loss exposures. Credit is extended for all customers based primarily on financial condition, and collateral is not required. During 2021, 2020 and 2019, approximately 62%, 59% and 49% of the Company’s net revenues, respectively, were from sales to semiconductor capital equipment manufacturers and semiconductor device manufacturers. One customer represented approximately 18% Inventories Inventories are stated at the lower of cost or net realizable value, cost being determined using a standard costing system which approximates cost based on a first-in, first-out method. The Company regularly reviews inventory quantities on hand and records a provision to write-down excess and obsolete inventory to its estimated net realizable value, if less than cost, based primarily on its estimated forecast of product demand . Property, Plant and Equipment Property, plant and equipment are stated at cost. Expenditures for major renewals and betterments that extend the useful lives of property, plant and equipment are capitalized. Expenditures for maintenance and repairs are charged to expense as incurred. When assets are sold or otherwise disposed of, the cost and related accumulated depreciation are eliminated from the accounts and any resulting gain or loss is recognized in earnings. Depreciation is provided on the straight-line method over the estimated useful lives of ten to fifty years for buildings and building improvements, three to eighteen years for machinery and equipment, furniture and fixtures, office equipment and software. Leasehold improvements are amortized over the shorter of the lease term or the estimated useful life of the leased asset. Acquisition Accounting The fair value of the consideration exchanged in a business combination is allocated to tangible assets and identifiable intangible assets acquired and liabilities assumed at acquisition date fair value. Goodwill is measured as the excess of the consideration transferred over the net fair value of identifiable assets acquired and liabilities assumed. The accounting for an acquisition involves a considerable amount of judgement and estimation. Cost, income, market or a combination of approaches may be used to establish the fair value of consideration exchanged, assets acquired, and liabilities assumed, depending on the nature of those items. The valuation approach is determined in accordance with generally accepted valuation methods. Key areas of estimation and judgment may include the selection of valuation approaches, cost of capital, market characteristics, cost structure, impacts of synergies, and estimates of terminal value, among other factors. While the Company uses estimates and assumptions as part of the purchase price allocation process to estimate the value of assets acquired and liabilities assumed, estimates are inherently uncertain and subject to refinement. During the measurement period, which maybe up to one year from the acquisition date, the Company may record adjustments to the assets acquired and liabilities assumed, with a corresponding offset to goodwill, to the extent that adjustments are identified to the preliminary purchase price allocation. Upon conclusion of the measurement period, or final determination of the value of the assets acquired and liabilities assumed, whichever comes first, any subsequent adjustments are recorded to results of operations. Intangible Assets Intangible assets resulting from the acquisitions of businesses are estimated by management based on the fair value of assets acquired. These include acquired customer lists, technology, patents, trademarks, trade names and IPR&D. Intangible assets are amortized from one to eighteen years on a straight-line basis which represents the estimated periods of benefit and the expected pattern of consumption. Goodwill Goodwill is the amount by which the cost of acquired net assets exceeded the fair value of those net assets on the date of acquisition. The Company allocates goodwill to reporting units at the time of acquisition or when there is a change in the reporting structure and bases that allocation on which reporting units will benefit from the acquired assets and liabilities. Reporting units are defined as operating segments or one level below an operating segment, referred to as a component. The Company assesses goodwill for impairment on an annual basis as of October 31 or more frequently when events and circumstances occur indicating that the recorded goodwill may be impaired. The estimated fair value of the Company’s reporting units is based on discounted cash flow models derived from internal earnings and internal and external market forecasts. Determining fair value requires the exercise of significant judgment, including judgments about appropriate discount and terminal growth rates, as well as forecasted revenue, gross profit and operating margins. Discount rates are based on a weighted average cost of capital (“WACC”), which represents the average rate a business must pay its providers of debt and equity. The WACC used to test goodwill is derived from a group of comparable companies. Assumptions in estimating future cash flows are subject to a high degree of judgment and complexity. The Company makes every effort to forecast these future cash flows as accurately as possible with the information available at the time the forecast is developed . In performing the Company’s annual goodwill impairment test, the Company is permitted to first assess qualitative factors to determine whether it is more likely than not that the fair value of the Company’s reporting unit is less than its carrying amount, including goodwill. In performing the qualitative assessment, the Company considers certain events and circumstances specific to the reporting unit and to the entity as a whole, such as macroeconomic conditions, industry and market considerations, overall financial performance and cost factors when evaluating whether it is more likely than not that the fair value of the reporting unit is less than its carrying amount. The Company is also permitted to bypass the qualitative assessment and proceed directly to the quantitative test. If the Company chooses to undertake the qualitative assessment and concludes that it is more likely than not that the fair value of the reporting unit is less than its carrying amount, the Company would then proceed to the quantitative impairment test. In the quantitative assessment, the Company compares the fair value of the reporting unit to its carrying amount, which includes goodwill. If the fair value exceeds the carrying value, no impairment loss exists. If the fair value is less than the carrying amount, a goodwill impairment loss is measured and recorded. As of October 31, 2021, the Company performed its annual impairment assessment of goodwill by performing a qualitative analysis for all of its reporting units and determined that it is more likely than not that the fair values of the reporting units exceed their carrying amount . Impairment of Long-Lived Assets The Company evaluates the recoverability of its long-lived assets whenever events and changes in circumstances indicate that the carrying amount of an asset may not be fully recoverable. This periodic review may result in an adjustment of estimated depreciable lives or asset impairment. When indicators of impairment are present, the carrying values of the asset are evaluated in relation to their operating performance and future undiscounted cash flows of the underlying business. If the future undiscounted cash flows are less than their carrying value, impairment exists. The impairment is measured as the difference between the carrying value and the fair value of the underlying asset. Fair values are based on estimates of market prices and assumptions concerning the amount and timing of estimated future cash flows and assumed discount rates, reflecting varying degrees of perceived risk. Foreign Exchange The functional currency of the majority of the Company’s foreign subsidiaries is the applicable local currency. For those subsidiaries, assets and liabilities are translated to U.S. dollars at year-end exchange rates. Income and expense accounts are translated at the average exchange rates prevailing during the year. The resulting translation adjustments are included in accumulated other comprehensive (loss) income in consolidated stockholders’ equity. Foreign exchange transaction gains and losses are classified in other income/expense in the statement of operations and comprehensive income. Net foreign exchange losses resulting from re-measurement were $8.7, $3.5 and $3.6 for the years ended December 31, 2021, 2020, and 2019, respectively, and are included in other expense, net. These amounts do not reflect the corresponding gain (loss) from foreign exchange forward contracts, which are included in cost of sales. See Note 9 regarding foreign exchange contracts. Employee Benefit Plans The majority of the Company’s employees participate in defined contribution plans, whereby the Company, at its discretion, makes certain matching contributions based on participating employees’ annual contribution to the plan and their total compensation. The Company also has defined benefit retirement plans at certain of its foreign subsidiaries. The Company accounts for these plans based on the provisions of ASC Topic 715, “Compensation-Retirement Benefits.” Some of the key assumptions used to calculate the pension expense and projected benefit obligation include the discount rate, rate of forecasted salary increases, the expected long-term rate of return on plan assets and expected mortality. The obligation for these claims and the related periodic costs are measured using actuarial techniques and assumptions. Actuarial gains and losses are deferred and amortized over future periods. Income Taxes The Company records income taxes using the asset and liability method. Deferred income tax assets and liabilities are recognized for the future tax consequences attributable to differences between the financial statement carrying amounts of existing assets and liabilities and their respective income tax bases, and also for operating loss and tax credit carryforwards. On a quarterly basis, the Company evaluates both the positive and negative evidence that affects the realizability of net deferred tax assets and assesses the need for a valuation allowance. The future benefit to be derived from its deferred tax assets is dependent upon its ability to generate sufficient future taxable income in each jurisdiction of the right type to realize the assets. The Company records a valuation allowance to reduce its net deferred tax assets to the amount that is expected to be realized. To the extent the Company establishes a valuation allowance an expense will be recorded as a component of the provision for income taxes on the statement of operations. Accounting for income taxes requires a two-step approach to recognize and measure uncertain tax positions. The first step is to evaluate the tax position for recognition by determining if, based on the technical merits, it is more likely than not that the position will be sustained upon audit, including resolutions of related appeals or litigation processes, if any. The second step is to measure the tax benefit as the largest amount that is more than 50% likely of being realized upon ultimate settlement. The Company re-evaluates these uncertain tax positions on a quarterly basis. This evaluation is based on factors including, but not limited to, changes in facts or circumstances, changes in tax law, effectively settled issues under audit and new audit activity. Any change in these factors could result in the recognition of a tax benefit or an additional charge to the tax provision. Income tax effects resulting from changes in tax law are accounted for by the Company in the period in which the law is enacted and the effects are recorded as a component of provision for income taxes from continuing operations.

Recently Issued or Adopted Acco

Recently Issued or Adopted Accounting Pronouncements	12 Months Ended
	Dec. 31, 2021
Accounting Changes And Error Corrections [Abstract]
Recently Issued or Adopted Accounting Pronouncements	4) Recently Issued or Adopted Accounting Pronouncements In October 2021, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update (“ASU”) 2021-08, "Business Combinations (Topic 805): Accounting for Contract Assets and Contract Liabilities from Contracts with Customers" ("ASU No. 2021-08"). ASU No. 2021-08 will require companies to apply the definition of a performance obligation under ASC Topic 606 to recognize and measure contract assets and contract liabilities (i.e., deferred revenue) relating to contracts with customers that are acquired in a business combination. Under current U.S. GAAP, an acquirer generally recognizes assets acquired and liabilities assumed in a business combination, including contract assets and contract liabilities arising from revenue contracts with customers, at fair value on the acquisition date. ASU No. 2021-08 will result in the acquirer recording acquired contract assets and liabilities on the same basis that would have been recorded by the acquiree before the acquisition under ASC Topic 606. ASU No. 2021-08 is effective for fiscal years beginning after December 15, 2022, with early adoption permitted. The Company adopted this ASU during the fourth quarter of 2021 and the adoption of this ASU did not have a material impact on its financial position, results of operations and cash flows. In March 2020, the FASB issued ASU No. 2020-04, “Reference Rate Reform (Topic 848): Facilitation of the Effects of Reference Rate Reform on Financial Reporting.” This standard provides temporary optional expedients and exceptions to accounting guidance on contract modifications and hedge accounting to ease entities’ financial reporting burdens as the market transitions from the London Interbank Offered Rate (“LIBOR”) and other interbank offered rates to alternative reference rates. The standard was effective upon issuance and generally can be applied through December 31, 2022. In January 2021, the FASB issued ASU 2021-01, “Reference Rate Reform (Topic 848): Scope.” The amendments in this update clarify that certain optional expedients and exceptions in Topic 848 for contract modifications and hedge accounting apply to derivative instruments that use an interest rate for margining, discounting, or contract price alignment that is modified as a result of reference rate reform. Amendments in this update to the expedients and exceptions in Topic 848 capture the incremental consequences of the scope clarification and tailor the existing guidance to derivative instruments affected by the discounting transition. The amendments in this update do not apply to contract modifications made after December 31, 2022, new hedging relationships entered into after December 31, 2022, and existing hedging relationships evaluated for effectiveness in periods after December 31, 2022, except for hedging relationships existing as of December 31, 2022, that apply certain optional expedients in which the accounting effects are recorded through the end of the hedging relationship (including periods after December 31, 2022). The Company’s adoption of the requirements of these standards has not resulted in a material impact on its financial position, results of operations and cash flows, but the adoption of the requirements may impact the Company in the future. In December 2019, the FASB issued ASU 2019-12, “Income Taxes (Topic 740).” This standard simplifies the accounting for income taxes by removing certain exceptions to the general principles in Topic 740. The amendments also improve consistent application and simplify U.S. GAAP for other areas of Topic 740 by clarifying and amending existing guidance. This standard is effective for annual periods, and interim periods within those fiscal years, beginning after December 15, 2020. The Company adopted this ASU during the first quarter of 2021 and the adoption of this ASU did not have a material impact on its financial position, results of operations and cash flows.

Acquisition

Acquisition	12 Months Ended
	Dec. 31, 2021
Business Combinations [Abstract]
Acquisition	5) Acquisitions Photon Control On July 15, 2021, the Company completed its acquisition of Photon Control Inc. (“Photon Control”), a Canadian corporation (the “Photon Control Acquisition”), pursuant to a definitive agreement (the “Arrangement Agreement”). Photon Control designs, manufactures and distributes a wide range of optical sensors and systems to measure temperature and position used in semiconductor wafer fabrication. At the effective time of the Photon Control Acquisition and pursuant to the terms and conditions of the Arrangement Agreement, each share of Photon Control’s common stock issued and outstanding as of immediately prior to the effective time of the Photon Control Acquisition, was converted into the right to receive CAD 3.60 per share in cash, without interest and subject to deduction for any required withholding tax. The Company funded the payment of the aggregate consideration with available cash on hand. Photon Control is included in the Company’s Light & Motion segment. The Photon Control Acquisition has helped the Company deliver on one of its long-term strategic objectives, which is to broaden its portfolio of key technologies to better serve its customers. The Photon Control Acquisition further advances the Company’s strategy to enhance its Surround the Chamber® offering by adding optical sensors for temperature control for critical etch and deposition applications in semiconductor wafer fabrication. The purchase price of Photon Control consisted of the following: Cash paid for outstanding shares (1) $ 302.7 Less: Cash and cash equivalents acquired (34.3 ) Total purchase price, net of cash and cash equivalents acquired $ 268.4 (1) Represents cash paid of CAD 3.60 per share for approximately 105.2 shares of Photon Control common stock, without interest and subject to deduction for any required withholding tax. Under the acquisition method of accounting, the total estimated acquisition consideration is allocated to the acquired tangible and intangible assets and assumed liabilities of Photon Control 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 none of such goodwill or intangible assets will be deductible for tax purposes. The Company believes the amount of goodwill relative to identifiable intangible assets relates to enhancing the Company’s Surround the Chamber® offering by adding optical sensors for temperature control for critical etch and deposition applications in semiconductor wafer fabrication. The following table summarizes the allocation of the purchase price to the fair values assigned to assets acquired and liabilities assumed at the date of the Photon Control Acquisition: Current assets $ 51.4 Intangible assets 121.2 Goodwill 168.0 Other non-current assets 8.6 Total assets acquired 349.2 Current liabilities 13.7 Non-current deferred taxes 32.1 Other long-term liabilities 0.7 Total liabilities assumed 46.5 Fair value of assets acquired and liabilities assumed 302.7 Less: Cash and cash equivalents acquired (34.3 ) Total purchase price, net of cash and cash equivalents acquired $ 268.4 The acquired intangible assets are being amortized on a straight-line basis, which approximates the economic use of the assets over their estimated useful lives. The following table reflects the allocation of the acquired intangible assets and related estimate of useful lives: Completed technology $ 110.0 9 years Customer relationships 9.4 10 years Trade names 0.2 0.5 years Backlog 1.6 1.5 years $ 121.2 The fair value of the acquired intangible assets was determined using the income approach. In performing these valuations, the key underlying assumptions used included the appropriate discount rates as well as forecasted revenue growth rates, gross profit and operating margins. Fair value estimates are based on complex series of judgments about future events and uncertainties and rely heavily on estimates and assumptions. 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. The results of operations of the Photon Control business from the Photon Control Acquisition closing date of July 15, 2021 through December 31, 2021, were not material to the Company's results of operations. The acquisition was also not material to the Company’s results of operations, for the periods presented, on a pro forma basis. Electro Scientific Industries, Inc. On February 1, 2019, the Company completed its acquisition of Electro Scientific Industries, Inc. (“ESI”) pursuant to an Agreement and Plan of Merger, dated as of October 29, 2018 (the “Merger Agreement”), by and among the Company, EAS Equipment, Inc., formerly a Delaware corporation and a wholly-owned subsidiary of the Company, and ESI (the “ESI Merger”). At the effective time of the ESI Merger and pursuant to the terms and conditions of the Merger Agreement, each share of ESI’s common stock that was issued and outstanding immediately prior to the effective time of the ESI Merger was converted into the right to receive $30.00 in cash, without interest and subject to deduction of any required withholding tax. 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 Term Loan Facility, as defined and as described further in Note 15. ESI provides laser-based manufacturing systems solutions for the micro-machining industry that enable customers to optimize production. Its market is composed primarily of flexible and rigid printed circuit board (“PCB”) processing/fabrication and passive component manufacturing and testing. ESI solutions incorporate specialized laser technology and proprietary control software to efficiently process the materials and components that are an integral part of electronic devices and systems. The purchase price of ESI consisted of the following: Cash paid for outstanding shares (1) $ 1,032.7 Settlement of share-based compensation awards (2) 30.6 Total purchase price 1,063.3 Less: cash and cash equivalents acquired (44.1 ) Total purchase price, net of cash and cash equivalents acquired $ 1,019.2 (1) Represents cash paid of $30.00 per share for approximately 34.4 shares of ESI common stock, without interest and subject to a deduction for any required withholding tax. (2) Under the acquisition method of accounting, the total acquisition consideration is allocated to the acquired tangible and intangible assets and assumed liabilities of ESI 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 none of such goodwill and intangible assets will be deductible for tax purposes . The following table summarizes the allocation of the purchase price to the fair values assigned to assets acquired and liabilities assumed at the date of the ESI Merger: Current assets (excluding inventory) $ 208.0 Inventory 81.7 Intangible assets 316.2 Goodwill 474.0 Property, plant and equipment 65.5 Long-term assets 9.6 Total assets acquired 1,155.0 Current liabilities 51.5 Non-current deferred taxes 33.0 Other long-term liabilities 7.2 Total liabilities assumed 91.7 Fair value of assets acquired and liabilities assumed 1,063.3 Less: Cash and cash equivalents acquired (44.1 ) Total purchase price, net of cash and cash equivalents acquired $ 1,019.2 The fair value write-up of acquired finished goods inventory was $7.6, the amount of which was expensed over the period during which the acquired inventory was sold. For the year ended December 31, 2019, the Company recorded $7.6 of incremental cost of sales charges associated with the fair value write-up of inventory acquired in the ESI Merger. The fair value write-up of acquired property, plant and equipment of $39.2 will be amortized over the estimated useful life of the applicable assets, excluding the fair value write-up in the value of land. Property, plant and equipment was 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 related useful lives: Completed technology - Laser $ 255.7 12 years Completed technology - Non-Laser 18.3 10 years Trademarks and trade names 14.4 7 years Customer relationships 25.4 10 years Backlog 2.4 1 year $ 316.2 The fair value of the acquired intangible assets was determined using the income approach. In performing these valuations, the key underlying assumptions used included the appropriate discount rates as well as forecasted revenue growth rates, gross profit and operating margins. Fair value estimates are based on complex series of judgments about future events and uncertainties and rely heavily on estimates and assumptions. 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. The Company believes the amount of goodwill relative to identifiable intangible assets relates to several factors, including broadening its position in key industrial markets to complementary solutions, and leveraging component and systems expertise to provide robust solutions to meet customer evolving technology needs. The results of this acquisition were included in the Company’s consolidated statement of operations beginning on February 1, 2019. The Company’s Equipment & Solutions reportable segment was created in conjunction with the ESI Merger. Certain executives from ESI had severance provisions in their respective ESI employment agreements. The agreements included terms that were 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. The Company recorded costs of $2.7 and $14.0 in acquisition and integration costs as compensation expense and stock-based compensation expense, respectively, for the year ended December 31, 2019 associated with these severance provisions. The restricted stock units and stock appreciation rights that were eligible for accelerated vesting if the executive exercised his or her rights but were not issued as of each reporting period-end, were excluded from the computation of basic earnings per share and included in the computation of diluted earnings per share for such reporting period. The Company’s consolidated net revenue and earnings for the year ended December 31, 2019 include the following amounts of revenue and earnings of ESI since the acquisition date: Year Ended December 31, 2019 Total net revenues $ 183.7 Net loss $ (33.5 ) Net loss per share: Basic $ (0.61 ) Diluted $ (0.61 ) Pro Forma Results The following unaudited pro forma financial information presents the combined results of operations of the Company as if the ESI Merger had occurred on January 1, 2018. 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 the year. In addition, the unaudited pro forma financial information does not attempt to project the future results of operations of the combined Company. Year Ended December 31, 2019 Total net revenues $ 1,914.6 Net income $ 171.5 Net income per share: Basic $ 3.14 Diluted $ 3.11 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 and cost of goods sold adjustments as a result of the reduction in deferred revenue and the cost related to their estimated fair value. (3) Incremental interest expense related to the Term Loan Facility, as defined in Note 15. (4) The exclusion of acquisition costs and inventory step-up amortization. (5) The exclusion of debt issuance costs due to the modification of the Term Loan Facility. (6) The estimated tax impact of the above adjustments.

Revenue from Contracts with Cus

Revenue from Contracts with Customers	12 Months Ended
	Dec. 31, 2021
Revenue From Contract With Customer [Abstract]
Revenue from Contracts with Customers	6) Revenue from Contracts with Customers Contract assets as of December 31, 2021 and 2020 were $4.1 and $3.7, respectively, and were included in other current assets. A roll forward of the Company’s deferred revenue and customer advances is as follows: 2021 2020 Beginning balance, January 1 (1) $ 36.7 $ 24.8 Additions to deferred revenue and customer advances 172.5 107.4 Amount of deferred revenue and customer advances recognized in income (168.9 ) (95.5 ) Ending balance, December 31 (2) $ 40.3 $ 36.7 (1) Beginning deferred revenue and customer advances as of January 1, 2021 included $18.3 of current deferred revenue, $5.6 of long-term deferred revenue and $12.8 of current customer advances. Beginning deferred revenue and customer advances as of January 1, 2020 included $12.4 of current deferred revenue, $3.3 of long-term deferred revenue and $9.1 of current customer advances. (2) Ending deferred revenue and customer advances as of December 31, 2021 included $16.6 of current deferred revenue, $2.8 of long-term deferred revenue and $20.9 of current customer advances. Ending deferred revenue and customer advances as of December 31, 2020 included $18.3 of current deferred revenue, $5.6 of long-term deferred revenue and $12.8 of current customer advances. Disaggregation of Revenue The following table summarizes revenue from contracts with customers: Year Ended December 31, 2021 Vacuum & Analysis Light & Motion Equipment & Solutions Total Net revenues: Products $ 1,629.0 $ 742.5 $ 207.1 $ 2,578.6 Services 232.5 70.9 67.6 371.0 Total net revenues $ 1,861.5 $ 813.4 $ 274.7 $ 2,949.6 Year Ended December 31, 2020 Vacuum & Analysis Light & Motion Equipment & Solutions Total Net revenues: Products $ 1,222.4 $ 621.9 $ 170.5 $ 2,014.8 Services 183.5 67.7 64.0 315.2 Total net revenues $ 1,405.9 $ 689.6 $ 234.5 $ 2,330.0 Year Ended December 31, 2019 Vacuum & Analysis Light & Motion Equipment & Solutions Total Net revenues: Products $ 819.1 $ 663.7 $ 128.5 $ 1,611.3 Services 171.4 61.9 55.2 288.5 Total net revenues $ 990.5 $ 725.6 $ 183.7 $ 1,899.8 Refer to Note 21 for revenue by reportable segment, geography and groupings of similar products.

Investments

Investments	12 Months Ended
	Dec. 31, 2021
Investments Debt And Equity Securities [Abstract]
Investments	7) Investments The following table shows the gross unrealized gains and (losses) aggregated by investment category for available-for-sale investments: As of December 31, 2021: Cost Gross Unrealized Gains Gross Unrealized (Losses) Estimated Fair Value Short-term investments: Available-for-sale investments: Time deposits and certificates of deposit $ 22.0 $ — $ — $ 22.0 Bankers' acceptance drafts 0.5 — — 0.5 Commercial paper 41.8 — — 41.8 U.S. treasury obligations 11.5 — — 11.5 U.S. agency obligations 0.6 — — 0.6 $ 76.4 $ — $ — $ 76.4 As of December 31, 2021: Cost Gross Unrealized Gains Gross Unrealized (Losses) Estimated Fair Value Long-term investments: Available-for-sale investments: Group insurance contracts $ 5.3 $ 0.9 $ — $ 6.2 As of December 31, 2020: Cost Gross Unrealized Gains Gross Unrealized (Losses) Estimated Fair Value Short-term investments: Available-for-sale investments: Time deposits and certificates of deposit $ 0.7 $ — $ — $ 0.7 Bankers' acceptance drafts 3.8 — — 3.8 U.S. treasury obligations 223.2 — — 223.2 $ 227.7 $ — $ — $ 227.7 As of December 31, 2020: Cost Gross Unrealized Gains Gross Unrealized (Losses) Estimated Fair Value Long-term investments: Available-for-sale investments: Group insurance contracts $ 5.6 $ 0.9 $ — $ 6.5 The tables above, which show the gross unrealized gains and (losses) aggregated by investment category for available-for-sale investments as of December 31, 2021 and 2020, 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 on the accompanying balance sheets. Interest income is accrued as earned. Dividend income is recognized as income on the date the security trades “ex-dividend.” Realized gains or losses are reflected in income and were not material in 2021, 2020 and 2019.

Fair Value Measurements

Fair Value Measurements	12 Months Ended
	Dec. 31, 2021
Fair Value Disclosures [Abstract]
Fair Value Measurements	8) Fair Value Measurements In accordance with the provisions of fair value accounting, a fair value measurement assumes that the transaction to sell an asset or transfer a liability occurs in the principal market for the asset or liability or, in the absence of a principal market, the most advantageous market for the asset or liability and defines fair value based upon an exit price model. The fair value measurement guidance establishes a fair value hierarchy, which requires an entity to maximize the use of observable inputs and minimize the use of unobservable inputs when measuring fair value. The guidance describes three levels of inputs that may be used to measure fair value: Level 1 Quoted prices in active markets for identical assets or liabilities as of the reporting date. Active markets are those in which transactions for the asset or liability occur in sufficient frequency and volume to provide pricing information on an ongoing basis. Level 2 Observable inputs other than Level 1 prices, such as quoted prices for similar assets or liabilities; quoted prices in markets that are not active; or other inputs that are observable or can be corroborated by observable market data for substantially the full term of the assets or liabilities. Level 2 assets and liabilities include debt securities with quoted prices that are traded less frequently than exchange-traded instruments or securities or derivative contracts that are valued using a pricing model with inputs that are observable in the market or can be derived principally from or corroborated by observable market data. Level 3 Unobservable inputs that are supported by little or no market activity and that are significant to the fair value of the assets or liabilities. Level 3 assets and liabilities include financial instruments whose value is determined using pricing models, discounted cash flow methodologies, or similar techniques, as well as instruments for which the determination of fair value requires significant management judgment or estimation. In certain cases, the inputs used to measure fair value may fall into different levels of the fair value hierarchy. In such cases, 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 . Assets and liabilities of the Company measured at fair value on a recurring basis as of December 31, 2021, are summarized as follows: Fair Value Measurements at Reporting Date Using Description December 31, 2021 Quoted Prices in Active Markets for Identical Assets (Level 1) Significant Other Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3) Assets: Cash equivalents: Money market funds $ 55.4 $ 55.4 $ — $ — Commercial paper 0.1 — 0.1 — U.S. treasury obligations 175.0 — 175.0 — Available-for-sale securities: Time deposits and certificates of deposit 22.0 — 22.0 — Bankers' acceptance drafts 0.5 — 0.5 — Commercial paper 41.8 — 41.8 — U.S. treasury obligations 11.5 — 11.5 — U.S. agency obligations 0.6 — 0.6 — Group insurance contracts 6.2 — 6.2 — Derivatives-foreign exchange forward contracts 3.5 — 3.5 — Derivatives-foreign currency options 3.4 — 3.4 — Derivatives-interest rate hedge-non-current 8.7 — 8.7 — Funds in investments and other assets: Israeli pension assets 20.3 — 20.3 — Deferred compensation plan assets: Mutual funds and exchange traded funds 1.6 — 1.6 — Total assets $ 350.6 $ 55.4 $ 295.2 $ — Liabilities: Derivatives – forward exchange contracts $ 0.6 $ — $ 0.6 $ — Derivatives – interest rate hedge – non-current 5.0 — 5.0 — Total liabilities $ 5.6 $ — $ 5.6 $ — Reported as follows: Assets: Cash and cash equivalents $ 230.5 $ 55.4 $ 175.1 $ — Short-term investments 76.4 — 76.4 — Other current assets 6.9 — 6.9 — Total current assets $ 313.8 $ 55.4 $ 258.4 $ — Long-term investments $ 6.2 $ — $ 6.2 $ — Other assets 30.6 — 30.6 — Total long-term assets $ 36.8 $ — $ 36.8 $ — Liabilities: Other current liabilities $ 0.6 $ — $ 0.6 $ — Other liabilities $ 5.0 $ — $ 5.0 $ — Assets and liabilities of the Company measured at fair value on a recurring basis as of December 31, 2020, are summarized as follows: Fair Value Measurements at Reporting Date Using Description December 31, 2020 Quoted Prices in Active Markets for Identical Assets (Level 1) Significant Other Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3) Assets: Cash equivalents: Money market funds $ 1.3 $ 1.3 $ — $ — Commercial paper 0.3 — 0.3 — U.S. treasury obligations 62.1 — 62.1 — Available-for-sale securities: Time deposits and certificates of deposit 0.7 — 0.7 — Bankers' acceptance drafts 3.8 — 3.8 — U.S. treasury obligations 223.2 — 223.2 — Group insurance contracts 6.5 — 6.5 — Funds in investments and other assets: Israeli pension assets 18.8 — 18.8 — Deferred compensation plan assets: Mutual funds and exchange traded funds 1.7 — 1.7 — Total assets $ 318.4 $ 1.3 $ 317.1 $ — Liabilities: Derivatives – forward exchange contracts $ 6.5 $ — $ 6.5 $ — Derivatives – interest rate hedge – non-current 14.0 — 14.0 — Total liabilities $ 20.5 $ — $ 20.5 $ — Reported as follows: Assets: Cash and cash equivalents $ 63.7 $ 1.3 $ 62.4 $ — Short-term investments 227.7 — 227.7 — Total current assets $ 291.4 $ 1.3 $ 290.1 $ — Long-term investments $ 6.5 $ — $ 6.5 $ — Other assets 20.5 — 20.5 — Total long-term assets $ 27.0 $ — $ 27.0 $ — Liabilities: Other current liabilities $ 6.5 $ — $ 6.5 $ — Other liabilities $ 14.0 $ — $ 14.0 $ — Money Market Funds Money market funds are cash and cash equivalents and are classified within Level 1 of the fair value hierarchy. Available-For-Sale Investments The Company measures its debt and equity investments at fair value. The Company’s available-for-sale investments are classified within 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 of 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 and variable interest rates, which may adversely affect its operating results and financial position. When deemed appropriate, the Company minimizes its risks from foreign currency exchange rate and interest rate fluctuations through the use of derivative financial instruments. The principal market in which the Company executes its foreign currency contracts, options and interest rate swaps is the institutional market in an over-the-counter environment with a relatively high level of price transparency. The market participants usually are large commercial banks. The foreign exchange forward contracts, options and interest rate hedge are valued using broker quotations, or market transactions and are classified within Level 2 of the fair value hierarchy.

Derivatives

Derivatives	12 Months Ended
	Dec. 31, 2021
Derivative Instruments And Hedging Activities Disclosure [Abstract]
Derivatives	9) Derivatives The Company enters into derivative instruments for risk management purposes only, including derivatives designated as hedging instruments and those utilized as economic hedges. The Company operates internationally and, in the normal course of business, is exposed to fluctuations in interest rates and foreign exchange rates. These fluctuations can increase the costs of financing, investing and operating the business. The Company has used derivative instruments, such as foreign exchange forward contracts and options, to manage certain foreign currency exposure, and interest rate swaps to manage interest rate 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. 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 foreign exchange forward contracts accounted for as cash-flow hedges related to British, Euro, Japanese, South Korean 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 is recorded immediately in earnings in the period it occurs. The cash flows resulting from forward exchange contracts are classified in the consolidated statements of cash flows as part of cash flows from operating activities. The Company does not enter into derivative instruments for trading or speculative purposes. As of December 31, 2021 and 2020, the Company had outstanding foreign exchange forward contracts with gross notional values of $240.4 and $176.2, respectively. The following tables provide a summary of the primary net hedging positions and corresponding fair values held as of December 31, 2021 and 2020: December 31, 2021 Currency Hedged (Buy/Sell) Gross Notional Value Fair Value (1) U.S. dollar/Japanese yen $ 60.2 $ 1.7 U.S. dollar/South Korean won 107.7 1.1 U.S. dollar/Euro 15.1 0.3 U.S. dollar/U.K. pound sterling 10.7 — U.S. dollar/Taiwan dollar 46.7 (0.1 ) Total $ 240.4 $ 3.0 December 31, 2020 Currency Hedged (Buy/Sell) Gross Notional Value Fair Value (1) U.S. dollar/Japanese yen $ 61.5 $ (1.1 ) U.S. dollar/South Korean won 62.2 (3.1 ) U.S. dollar/Euro 13.1 (0.6 ) U.S. dollar/U.K. pound sterling 6.1 (0.3 ) U.S. dollar/Taiwan dollar 33.3 (1.4 ) Total $ 176.2 $ (6.5 ) (1) Represents the (payable) receivable amount included in the consolidated balance sheet. The foreign exchange forward 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 consolidated balance sheet. Interest Rate Swap Agreements The Company entered into various interest rate swap agreements that exchange the variable LIBOR interest rate to a fixed rate to manage the exposure to interest rate fluctuations associated with the variable LIBOR interest rate paid on the outstanding balance of the Term Loan Facility, as defined and described further in Note 15. The table below summarizes the various interest rate hedges entered into by the Company: Years Ended December 31, 2021 2020 Swap Trade Date Effective Date Maturity Fixed Rate Notional Amount at Effective Date Notional Amount Fair Value Asset (Liability) Fair Value (Liability) 1 April 3, 2019 April 5, 2019 March 31, 2023 2.309 % $ 300.0 $ 300.0 $ (5.0 ) $ (12.4 ) 2 October 29, 2020 October 26, 2021 February 28, 2025 0.485 % $ 200.0 $ 200.0 3.9 (0.7 ) 3 October 29, 2020 March 31, 2022 February 28, 2025 0.623 % $ 100.0 $ 100.0 4.8 (0.9 ) Total $ 3.7 $ (14.0 ) The interest rate swaps are recorded at fair value on the balance sheet and changes in the fair value are recognized in OCI, as these hedges have been determined to be effective. To the extent that these arrangements are no longer effective hedge s , any ineffectiveness measured in the hedging relationships is recorded immediately in earnings in the period it occurs. The fair value of the interest rate swaps is classified in other assets or non-current liabilities, accordingly, in the consolidated balance sheet . Currency Option Agreements In conjunction with financing the proposed acquisition of Atotech Limited (“Atotech”), the Company expects to issue EUR 500.0 in term loan debt. At the expected close, a portion of those proceeds will settle Atotech’s existing EUR 200.0 term loan and the EUR 300.0 balance will be converted into USD in support of the USD purchase price. The Company purchased foreign currency option contracts to fix the conversion of EUR 300.0 into USD as noted below: Trade Date Effective Date Maturity Fixed Rate Notional Amount in EUR Notional Amount in USD Year Ended December 31, 2021 Fair Value Asset October 26, 2021 October 26, 2021 January 31, 2022 $ 1.1615 $ 300.0 $ 348.3 $ 3.0 The currency swaps are recorded at fair value on the balance sheet and changes in the fair value are recognized immediately in earnings. The fair value asset is classified in other current assets in the consolidated balance sheet. The Company recorded an unrealized gain of $3.4 in 2021, net of premiums, which is included in other expense, net. In conjunction with the Photon Control Acquisition, which closed in July 2021, the Company entered into a foreign currency contract to hedge the Canadian dollar purchase price. In 2021, the Company recorded a fair value realized loss of $10.3, which is included in other expense, net. The following table provides a summary of the gain (loss) on derivatives designated as cash flow hedging instruments: Derivatives Designated as Cash Flow Hedging Instruments Years Ended December 31, Forward exchange contracts: 2021 2020 2019 Net gain (loss) recognized in OCI, net of tax (1) $ 20.0 $ (10.6 ) $ (10.0 ) Net (loss) gain reclassified from OCI into income (2) $ (1.5 ) $ 1.7 $ 5.7 (1) Net change in the fair value of the effective portion classified in OCI. (2) Effective portion classified in cost of products. The tax effect of the gains or losses reclassified from accumulated OCI into income is immaterial. The following table provides a summary of gain (loss) on derivatives not designated as cash flow hedging instruments: Derivatives Not Designated as Cash Flow Hedging Instruments Years Ended December 31, Forward exchange contracts: 2021 2020 2019 Net gain (loss) recognized in income (1) $ 4.8 $ (1.5 ) $ (1.3 ) (1) The Company enters into foreign exchange forward contracts to hedge against changes in the balance sheet for certain subsidiaries to mitigate the risk associated with certain foreign currency transactions in the ordinary course of business. These derivatives are not designated as cash flow hedging instruments and gains or losses from these derivatives are recorded immediately in other expense, net.

Inventories

Inventories	12 Months Ended
	Dec. 31, 2021
Inventory Disclosure [Abstract]
Inventories	10) Inventories Inventories consist of the following: Years Ended December 31, 2021 2020 Raw material $ 393.8 $ 321.3 Work-in-process 82.5 76.7 Finished goods 100.4 103.4 Total $ 576.7 $ 501.4 Inventory-related excess and obsolete charges of $16.2, $24.8 and $24.7 were recorded in cost of products and services in the years ended December 31, 2021, 2020 and 2019, respectively.

Property, Plant and Equipment

Property, Plant and Equipment	12 Months Ended
	Dec. 31, 2021
Property Plant And Equipment [Abstract]
Property, Plant and Equipment	11) Property, Plant and Equipment Property, plant and equipment consist of the following: Years Ended December 31, 2021 2020 Land $ 11.9 $ 12.3 Buildings and building improvements 132.8 120.2 Machinery and equipment 428.1 397.8 Furniture and fixtures, office equipment and software 186.7 187.1 Leasehold improvements 151.7 95.4 Construction in progress 27.2 70.6 938.4 883.4 Less: accumulated depreciation 613.1 599.1 Total $ 325.3 $ 284.3 Depreciation of property, plant and equipment totaled $48.8, $44.0 and $42.6 for the years ended 2021, 2020 and 2019, respectively.

Leases

Leases	12 Months Ended
	Dec. 31, 2021
Leases [Abstract]
Leases	12 ) Leases The Company has various operating leases for real estate and non-real estate items. The non-real estate leases are mainly comprised of automobiles but also include office equipment and other lower-valued items. The Company does not have any finance leases . The elements of lease expense were as follows: Years Ended December 31, 2021 2020 Lease cost: Operating lease (1) $ 27.6 $ 29.2 Short-term lease 4.5 4.9 Total lease cost $ 32.1 $ 34.1 (1) Operating lease cost includes an immaterial amount of variable expenses, offset by certain sublease rental income. The weighted average discount rate and the weighted average remaining lease term were 3.0% and 14.2 years, respectively, as of December 31, 2021. The weighted average discount rate and the weighted average remaining lease term were 3.0% and 15 years, respectively, as of December 31, 2020. Operating cash flows used for operating leases for the years ended December 31, 2021 and 2020 were $ 18.0 and $ 13.0 , respectively. Operating cash flows used for operating leases for the years ended December 31, 2021 and 2020 were net of $ 5.0 and $ 10.3 , respectively, in tenant improvement allowance receipts. In 2019, the Company sold two properties in Boulder, Colorado, and three properties in Portland, Oregon, the latter of which were part of sale and leaseback transactions and leased back the buildings over varying terms into 2021. Total net cash proceeds received for these two transactions were $41.2 and the Company recognized a net gain on the sale of these long-lived assets . Future lease payments under non-cancelable leases as of December 31, 2021 are detailed as follows: Year Ending December 31, Operating Leases 2022 $ 24.0 2023 22.6 2024 21.0 2025 18.8 2026 16.7 Thereafter 158.1 Total lease payments 261.2 Less: imputed interest 50.6 Total lease liabilities $ 210.6 The 2022 lease payment amount of $24.0 is net of tenant improvement allowances of $1.3. Amounts presented above do not include payments relating to immaterial leases excluded from the balance sheet as well as leases with terms of less than twelve months.

Goodwill and Intangible Assets

Goodwill and Intangible Assets	12 Months Ended
	Dec. 31, 2021
Goodwill And Intangible Assets Disclosure [Abstract]
Goodwill and Intangible Assets	13) 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. 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. Effective January 1, 2021, the Company reassigned goodwill to certain reporting units within the Light & Motion reportable segment, resulting from a reorganization of the composition of reporting units. The goodwill was reassigned to the reporting units affected using the relative fair value approach. The Company also concluded that the fair value of each reporting unit exceeded its respective carrying value. The changes in the carrying amount of goodwill and accumulated impairment losses were as follows: 2021 2020 Gross Carrying Amount Accumulated Impairment Loss Net Gross Carrying Amount Accumulated Impairment Loss Net Beginning balance at January 1 $ 1,211.8 $ (145.4 ) $ 1,066.4 $ 1,202.8 $ (144.3 ) $ 1,058.5 Acquired goodwill (1) 168.0 — 168.0 — — — Impairment of goodwill (2) — — — — (1.1 ) (1.1 ) Foreign currency translation (6.2 ) — (6.2 ) 9.0 — 9.0 Ending balance at December 31 $ 1,373.6 $ (145.4 ) $ 1,228.2 $ 1,211.8 $ (145.4 ) $ 1,066.4 (1 ) During the year ended December 31, 2021, the Company recorded goodwill related to the Photon Control Acquisition. (2) Intangible Assets The Company’s acquired intangible assets are comprised of the following: As of December 31, 2021 Gross Accumulated Impairment Charges Accumulated Amortization Foreign Currency Translation Net Completed technology (1) $ 556.4 $ (0.1 ) $ (241.7 ) $ (0.2 ) $ 314.4 Customer relationships (1) 317.6 (1.4 ) (124.2 ) (0.2 ) 191.8 Patents, trademarks, trade names and other (1) 122.7 — (52.5 ) (0.4 ) 69.8 $ 996.7 $ (1.5 ) $ (418.4 ) $ (0.8 ) $ 576.0 (1 ) As of December 31, 2020 Gross Accumulated Impairment Charges Accumulated Amortization Foreign Currency Translation Net Completed technology $ 446.4 $ (0.1 ) $ (209.8 ) $ (0.1 ) $ 236.4 Customer relationships 308.2 (1.4 ) (104.8 ) 1.7 203.7 Patents, trademarks, trade names and other 120.9 — (48.6 ) (0.2 ) 72.1 $ 875.5 $ (1.5 ) $ (363.2 ) $ 1.4 $ 512.2 Aggregate amortization expense related to acquired intangible assets for 2021, 2020 and 2019 was $55.3, $55.2 and $67.4, respectively. Aggregate net amortization expense related to acquired intangible assets for future years is: Year Amount 2022 $ 59.6 2023 58.2 2024 57.3 2025 56.3 2026 52.7 Thereafter 236.0 The Company excluded $55.9 of indefinite-lived trademarks and trade names that were not subject to amortization from the table above.

Product Warranties

Product Warranties	12 Months Ended
	Dec. 31, 2021
Guarantees And Product Warranties [Abstract]
Product Warranties	14) Product Warranties The Company provides for the estimated costs to fulfill customer warranty obligations upon the recognition of the related revenue. While the Company engages in extensive product quality programs and processes, including actively monitoring and evaluating the quality of its component suppliers, the Company’s warranty obligation is affected by shipment volume, product failure rates, utilization levels, material usage and supplier warranties on parts delivered to the Company. Should actual product failure rates, utilization levels, material usage, or supplier warranties on parts differ from the Company’s estimates, revisions to the estimated warranty liability would be required. Product warranty activities were as follows: Years Ended December 31, 2021 2020 Beginning balance $ 18.4 $ 14.9 Provision for product warranties 38.1 28.3 Assumed product warranty liability from Photon Control Acquisition 0.6 — Direct and other charges to warranty liability (36.0 ) (24.8 ) Ending balance (1) $ 21.1 $ 18.4 (1) Short-term product warranties of $19.7 and long-term product warranties of $1.4, each as of December 31, 2021, are included within other current liabilities and other non-current liabilities, respectively, within the accompanying consolidated balance sheet. Short-term product warranties of $15.6 and long-term product warranties of $2.8, each as of December 31, 2020, are included within other current liabilities and other non-current liabilities, respectively, within the accompanying consolidated balance sheet.

Debt

Debt	12 Months Ended
	Dec. 31, 2021
Debt Disclosure [Abstract]
Debt	15) The Company’s outstanding debt is as follows: December 31, 2021 December 31, 2020 Short-term debt: Term Loan Facility $ 9.0 $ 9.0 Japanese lines of credit and financing facility — 5.5 $ 9.0 $ 14.5 December 31, 2021 December 31, 2020 Long-term debt: Term Loan Facility, net (1) $ 807.9 $ 815.0 (1) Net of remaining deferred financing fees, original issuance discount and repricing fees in the aggregate of $7.5 and $9.4 as of December 31, 2021 and December 31, 2020, respectively. The Company recognized interest expense of $25.4, $29.1 and $44.1 for the years ended December 30, 2021, 2020 and 2019, respectively. Senior Secured Term Loan Credit Facility In connection with the completion of the acquisition of Newport Corporation (“Newport”) in 2016 (the “Newport Merger”), the Company entered into a term loan credit agreement (as amended, the “Term Loan Credit Agreement”) with Barclays Bank PLC, as administrative agent and collateral agent, and the lenders from time to time party thereto, which provided a senior secured term loan credit facility (the “Term Loan Facility”) in the original principal amount of $780.0. The Company has entered into seven amendments to the Term Loan Credit Agreement since 2016, including most recently the May Term Loan Amendment (as defined below). The Term Loan Facility is subject to increase at the Company’s option and subject to receipt of lender commitments in accordance with the Term Loan Credit Agreement. The maturity date of the Term Loan Facility is February 2, 2026 . As of December 31, 2021, 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 1.00 %, plus, in each case, an applicable margin of 0.75 %; 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 0.0 %, plus an applicable margin of 1.75 %. The Company has elected the interest rate as described in clause (b) of the foregoing sentence. The Term Loan Credit Agreement provides that, unless an alternate rate of interest is agreed, all loans will be determined by reference to the base rate if the LIBOR rate cannot be ascertained, if regulators impose material restrictions on the authority of a lender to make LIBOR rate loans, or for other reasons. In May 2021, the Company entered into an amendment (the “May Term Loan Amendment”) to the Term Loan Credit Agreement. The May Term Loan Amendment amends the Term Loan Facility to, among other things, (i) increase the Company’s ability to incur additional incremental debt facilities to (x) the greater of (1) $600.0 and (2) 100% of consolidated EBITDA, plus (y) an amount equal to the sum of all voluntary prepayments of term loans under the Term Loan Facility, plus (z) an additional unlimited amount subject to pro forma compliance with a secured leverage ratio test of 3.25:1.00, and (ii) increase the Company’s flexibility under certain debt, lien, investment, restricted payment and disposition baskets. The fees incurred, including certain customary lender consent fees, in connection with the were immaterial. The Company is required to make scheduled quarterly amortization payments each equal to 0.25% of the original principal amount of the Term Loan Facility. As of December 31, 2021, after giving effect to all amendments and repayments prior to such date, the outstanding principal amount of the Term Loan Facility was $824.4, and the interest rate was 1.8%. Under the Term Loan 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 of its asset sales, certain casualty and condemnation events and the incurrence or issuance of certain debt. 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 Term Loan 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 December 31, 2021, the Company was in compliance with all covenants under the Term Loan Credit Agreement. Interest Rate Swap Agreements The Company entered into various interest rate swap agreements as described further in Note 9 that exchange the variable LIBOR interest rate to a fixed rate in order to manage the exposure to interest rate fluctuations associated with the variable LIBOR interest rate paid on the outstanding balance of the Term Loan Facility. Senior Secured Asset-Based Revolving Credit Facility In February 2019, in connection with the completion of the acquisition of Electro Scientific Industries, Inc. (the “ESI Merger”), the Company entered into an asset-based revolving credit agreement with Barclays Bank PLC, 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 Credit Agreement”), that provides a senior secured asset-based revolving credit facility of up to $100.0, subject to a borrowing base limitation (the “ABL Facility”). The Company has entered into two amendments to the ABL Credit Agreement since 2019. As of December 31, 2021, after giving effect to all amendments, the borrowing base for the ABL Facility at any time equals the sum of: (a) 85 % of certain eligible accounts; plus (b) prior to certain notice and field examination and appraisal requirements, the lesser of (i) 20 % of net book value of eligible inventory in the United States and (ii) 30 % of the borrowing base, and after the satisfaction of such 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, in each case, subject to additional limitations and examination requirements for eligible accounts and eligible inventory acquired in an acquisition after February 1, 2019. The ABL Facility includes borrowing capacity in the form of letters of credit up to $ 25.0 . The Company has not borrowed against the ABL Facility to date. As of December 31, 2021, borrowings under the ABL Facility bear interest at a rate per annum equal to, at the Company’s option, any of the following, plus, in each case, an applicable margin: (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 In addition to paying interest on any outstanding principal under the ABL Facility, the Company is required to pay a commitment fee in respect of the unutilized commitments thereunder equal to 0.25% per annum. The Company must also pay customary letter of credit fees and agency fees. Under the ABL Facility, the Company is required to prepay amounts outstanding under the ABL Facility (1) if amounts outstanding under the ABL Facility exceed the lesser of (a) the commitment amount and (b) the borrowing base, in an amount required to reduce such shortfall, (2) if amounts outstanding under the ABL Facility in any currency other than U.S. dollars exceed the sublimit for such currency, in an amount required to reduce such shortfall, and (3) during any period in which the Company has excess availability less than the greater of (a) 10.0% of the lesser of (x) the commitment amount and (y) the borrowing base (the “Line Cap”) and (b) $8.5 for 3 consecutive business days, until the time when the Company has excess availability equal to or greater than the greater of (A) 10.0% of the Line Cap and (B) $8.5 for 30 consecutive days, or during the continuance of an event of default, with immediately available funds in its blocked accounts. There is no scheduled amortization under the ABL Facility. Any principal amount outstanding under the ABL Facility is due and payable in full on the fifth anniversary of the closing date, subject to a springing maturity in the event that term loans under the Term Loan Facility in an aggregate amount of at least $100.0 have an earlier maturity date than the ABL Facility. All obligations under the ABL 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. From the time when the Company has excess availability less than the greater of (a) 10.0% of the Line Cap and (b) $8.5 until the time when the Company has excess availability equal to or greater than the greater of (a) 10.0% of the Line Cap and (b) $8.5 for 30 consecutive days, or during the continuance of an event of default, the ABL Credit Agreement requires the Company to maintain a fixed charge coverage ratio, tested on the last day of each fiscal quarter, of at least 1.0 to 1.0. The ABL Credit Agreement also contains customary representations and warranties, affirmative covenants and provisions relating to events of default. If an event of default occurs, the lenders under the ABL Facility will be entitled to take various actions, including the acceleration of amounts due under the ABL Facility and all actions permitted to be taken by a secured creditor. Lines of Credit and Borrowing Arrangements The Company’s Japanese subsidiaries have lines of credit and a financing facility with various financial institutions, many of which generally expire and are renewed at three-month Contractual maturities of the Company’s debt obligations as of December 31, 2021 are as follows: Year Amount 2022 $ 9.0 2023 9.0 2024 9.0 2025 9.0 2026 788.4

Income Taxes

Income Taxes	12 Months Ended
	Dec. 31, 2021
Income Tax Disclosure [Abstract]
Income Taxes	16) Income Taxes A reconciliation of the Years Ended December 31, 2021 2020 2019 U.S. federal income tax statutory rate 21.0 % 21.0 % 21.0 % Federal tax credits (0.7 ) (1.5 ) (2.9 ) State income taxes, net of federal benefit 1.5 1.1 2.3 Effect of foreign operations taxed at various rates (4.5 ) (5.0 ) (4.4 ) Executive compensation 0.9 1.1 5.8 Gain on intercompany sale of assets — — 2.9 Utilization of a capital loss — — (1.2 ) Foreign derived intangible income deduction (1.7 ) (1.5 ) (3.8 ) Global intangible low taxed income, net of foreign tax credits 0.5 0.9 2.6 Revaluation of deferred income taxes — — (1.4 ) Stock-based compensation (0.5 ) (0.7 ) (0.3 ) Deferred tax asset valuation allowance (0.8 ) 0.6 0.1 Release of income tax reserves (including interest) (0.6 ) — (0.8 ) Withholding taxes on foreign dividends, net of foreign tax credits 1.5 0.7 0.6 Other 0.4 0.5 0.6 17.1 % 17.2 % 21.1 % The components of income from operations before income taxes and the related provision for income taxes consist of the following: Years Ended December 31, 2021 2020 2019 Income before income taxes: United States $ 249.0 $ 132.0 $ 2.3 Foreign 416.5 291.0 175.5 $ 665.5 $ 423.0 $ 177.8 Current taxes: United States $ 37.8 $ 29.2 $ 6.8 State 10.3 6.1 2.0 Foreign 64.8 44.7 32.8 112.9 80.0 41.6 Deferred taxes: United States 4.9 (7.9 ) (1.7 ) State and Foreign (3.7 ) 0.8 (2.5 ) 1.2 (7.1 ) (4.2 ) Provision for income taxes $ 114.1 $ 72.9 $ 37.4 The significant components of the deferred tax assets and deferred tax liabilities are as follows: December 31, 2021 2020 Deferred tax assets: Carryforward losses and credits $ 48.8 $ 54.2 Inventory and warranty reserves 37.3 32.4 Accrued expenses and other reserves 15.8 14.5 Stock-based compensation 3.5 5.1 Executive supplemental retirement benefits 1.5 1.8 Lease liability 44.7 48.7 Unrealized net loss — 4.0 Other 1.0 2.7 Total deferred tax assets $ 152.6 $ 163.4 Deferred tax liabilities: Acquired intangible assets and goodwill $ (136.5 ) $ (116.2 ) Depreciation and amortization (23.3 ) (14.5 ) Loan costs (2.0 ) (1.8 ) Right-of-use asset (41.0 ) (46.4 ) Foreign withholding taxes (6.1 ) (3.2 ) Unrealized gain (1.6 ) — Total deferred tax liabilities (210.5 ) (182.1 ) Valuation allowance (26.2 ) (30.6 ) Net deferred tax liabilities $ (84.1 ) $ (49.3 ) As of December 31, 2021, the Company had federal, state and foreign gross research and other tax credit carryforwards of $52.3. Included in the total carryforwards are $12.7 of credits that can be carried forward indefinitely while the remaining credits expire at various dates through 2037. The Company also had federal, state and foreign gross net operating loss and capital loss carryforwards of $93.3. Included in the total carryforwards are $51.7 of losses that can be carried forward indefinitely while the remaining losses expire at various dates through 2039. Although the Company believes that its tax positions are consistent with applicable U.S. federal, state and international laws, it maintains certain tax reserves as of December 31, 2021 in the event its tax positions were to be challenged by the applicable tax authority and additional tax assessed upon audit. A reconciliation of the beginning and ending amount of gross unrecognized tax benefits is as follows: Years Ended December 31, 2021 2020 2019 Balance at beginning of year $ 47.0 $ 43.5 $ 32.7 (Decreases) increases for prior years (0.6 ) 1.1 9.3 Increases for the current year 2.3 6.8 3.2 Reductions related to expiration of statutes of limitations and audit settlements (5.6 ) (4.4 ) (1.7 ) Balance at end of year $ 43.1 $ 47.0 $ 43.5 The net decrease in gross unrecognized tax benefits was primarily attributable to the release of a reserve related to federal research tax credits and the expiration of the statutes of limitations, partially offset by the addition of a reserve related to foreign withholding taxes. The Company accrues interest and, if applicable, penalties for any uncertain tax positions. Interest and penalties are classified as a component of income tax expense. As of December 31, 2021, 2020 and 2019, the Company accrued interest on unrecognized tax benefits of approximately $1.0, $0.7 and $0.5, respectively. Over the next 12 months it is reasonably possible that the Company may recognize approximately $3.6 of previously net unrecognized tax benefits, excluding interest and penalties, related to various U.S. federal, state and foreign tax positions, primarily due to the expiration of statutes of limitations. The Company is subject to examination by U.S. federal, state and foreign tax authorities. The U.S. federal statute of limitations remains open for tax years 2018 through the present. The statute of limitations for the Company’s tax filings in other jurisdictions varies between fiscal years 2015 through present. The Company has certain federal credit carryforwards and state tax loss and credit carryforwards that are open to examination for tax years 2002 through the present. In addition, the 2017 transition tax remains open for examination. On a quarterly basis, the Company evaluates both positive and negative evidence that affects the realizability of net deferred tax assets and assesses the need for a valuation allowance. The future benefit to be derived from its deferred tax assets is dependent upon its ability to generate sufficient future taxable income to realize the assets. During 2021, the Company decreased its valuation allowance by $4.4, primarily related to the release of the valuation allowance on its Austrian entities. During 2020, the Company increased its valuation allowance by $3.2. This increase was primarily related to certain foreign net operating loss carry-forward amounts. During 2019, the Company increased its valuation allowance by $9.4. This increase was primarily attributable to the addition of historical valuation allowances for ESI and its subsidiaries which were included as a result of the ESI Merger during the quarter ended March 31, 2019. No provision has been made for deferred taxes related to remaining historical outside basis differences in certain of the Company’s non-US subsidiaries. The Company continues to assert indefinite reinvestment with respect to certain outside basis differences as of December 31, 2021. Determination of the amount of unrecognized deferred tax liability on such outside basis differences is not practicable because the amount of such liability, if any, is dependent upon various circumstances and factors, including availability of tax planning. Certain of the Company’s subsidiaries have obtained tax rate reductions or tax holidays under government-sponsored incentive programs. For example, a Singapore subsidiary of the Company obtained a tax holiday in Singapore. The benefits of the holiday were approximately $0.4 ($0.01 per share) in 2021 and $1.7 ($0.03 per share) in 2020. The tax holiday in Singapore expired in June 2021 and another tax holiday was granted and expires in June 2026.

Stock-Based Compensation

Stock-Based Compensation	12 Months Ended
	Dec. 31, 2021
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]
Stock-Based Compensation	17) Stock-Based Compensation Employee Stock Purchase Plans The 2014 ESPP was adopted by the Board of Directors on February 10, 2014 and approved by the Company’s stockholders on May 5, 2014. The 2014 ESPP authorizes the issuance of up to an aggregate of 2.5 shares of common stock to participating employees. Offerings under the 2014 ESPP commence on June 1 and December 1 and terminate on November 30 and May 31, respectively. Under the 2014 ESPP, eligible employees can purchase shares of common stock through payroll deductions up to 10% of their compensation, up to a defined maximum annual amount. The price at which an employee’s purchase option is exercised for each offering period is the lower of (1) 90% of the closing price on the common stock on the Nasdaq Global Select Market on the day that each offering commences, or (2) 90% of the closing price on the day that the offering terminates. The Company issued 0.1 shares of common stock during each of 2021, 2020 and 2019 to employees who participated in the 2014 ESPP at exercise prices of $126.00 and $136.94 per share in 2021, $95.07 and $93.77 per share in 2020, and $64.31 and $63.78 per share in 2019. As of December 31, 2021, there were 1.6 shares reserved for future issuance under the 2014 ESPP. Equity Incentive Plans The Company grants RSUs to employees and directors under the 2014 Stock Incentive Plan (the “2014 Plan”). The 2014 Plan is administered by the Compensation Committee of the Company’s Board of Directors. The 2014 Plan is intended to attract and retain employees and directors, and to provide an incentive for these individuals to assist the Company to achieve long-range performance goals and to enable these individuals to participate in the long-term growth of the Company. The 2014 Plan was adopted by the Board of Directors on February 10, 2014 and was approved by the Company’s stockholders on May 5, 2014. Up to 18 shares of common stock (subject to adjustment in the event of stock splits and other similar events) may be issued pursuant to awards granted under the 2014 Plan. The Company may grant options, RSUs, restricted stock, Stock Appreciation Rights (“SARs”) and other stock-based awards to employees, officers, directors, consultants and advisors under the 2014 Plan. Any full-value awards granted under the 2014 Plan will be counted against the shares reserved for issuance under the 2014 Plan as 2.4 shares for each share of common stock subject to such award. Any award granted under the 2014 Plan that is not a full-value award (including, without limitation, any option or SAR) will be counted against the shares reserved for issuance under the plan as one share for each one share of common stock subject to such award. “Full-value award” means any RSU, or other stock-based award with a per share price or per unit purchase price lower than 100% of fair market value on the date of grant. To the extent a share that was subject to an award that counted as one share is returned to the 2014 Plan, each applicable share reserve will be credited with one share. To the extent that a share that was subject to an award that counts as 2.4 shares is returned to the 2014 Plan, each applicable share reserve will be credited with 2.4 shares. As of December 31, 2021, there were 12.2 shares reserved for future issuance under the 2014 Plan. Time-based RSUs granted to employees generally vest 33% per year beginning on the first anniversary of the date of grant. Performance-based RSUs granted to the Company’s executive officers in 2021 and 2020 were based on the Company’s achievement of Non-GAAP EBITDA for each respective year, defined as GAAP operating income excluding any charges or income not related to the operating performance of the Company plus depreciation and stock compensation expense, set at varying revenue levels. Performance-based RSUs granted to the Company’s executive officers in 2019 were based on the Company’s achievement of Non-GAAP cash flows from operations, defined as GAAP net income plus depreciation, amortization and non-cash stock-based compensation and excluding any charges or income not related to the operating performance of the Company, set at varying revenue levels. The final number of performance-based RSUs that vest vary based on the level of performance achieved from 0% 150% The following tables present the activity for RSUs under the 2014 Plan: Year Ended December 31, 2021 RSUs Weighted Average Grant Date Fair Value RSUs — beginning of period 0.6 $ 93.26 Granted 0.2 $ 177.71 Vested (0.3 ) $ 95.95 RSUs — end of period 0.5 $ 127.93 Year Ended December 31, 2020 RSUs Weighted Average Grant Date Fair Value RSUs — beginning of period 1.1 $ 85.93 Granted 0.3 $ 98.72 Vested (0.8 ) $ 85.32 RSUs — end of period 0.6 $ 93.26 The Company had an immaterial amount of SARs outstanding as of December 31, 2021 and 2020. Stock-Based Compensation Expense The Company recognized the full impact of its share-based payment plans in the consolidated statements of operations and comprehensive income. The following table reflects the effect of recording stock-based compensation: Years Ended December 31, 2021 2020 2019 Stock-based compensation expense by type of award: RSUs $ 33.8 $ 27.0 $ 47.1 Employee stock purchase plan 2.9 2.5 2.1 Total stock-based compensation 36.7 29.5 49.2 Windfall tax effect on stock-based compensation (4.6 ) (2.4 ) (2.2 ) Net effect on net income $ 32.1 $ 27.1 $ 47.0 Effect on net earnings per share: Basic $ 0.58 $ 0.49 $ 0.86 Diluted $ 0.58 $ 0.49 $ 0.85 The pre-tax effect within the consolidated statements of operations and comprehensive income of recording stock-based compensation was as follows: Years Ended December 31, 2021 2020 2019 Cost of revenues $ 3.8 $ 4.2 $ 2.8 Research and development expense 4.5 4.0 3.8 Selling, general and administrative expense 28.4 20.4 20.5 Acquisition and integration related expense — 0.9 21.7 Restructuring related expense — — 0.4 Total pre-tax stock-based compensation expense $ 36.7 $ 29.5 $ 49.2 Valuation Assumptions The Company determines the fair value of RSUs based on the closing market price of the Company’s common stock on the date of the award and estimates the fair value of employee stock purchase plan rights using the Black-Scholes valuation model. Such values are recognized as expense on a straight-line basis for time-based awards and using the accelerated graded vesting method for performance-based awards, both over the requisite service periods. The weighted average fair value per share of employee stock purchase plan rights granted in 2021, 2020 and 2019 was $33.55, $23.88, and $16.04, respectively. The fair value of employee stock purchase plan rights was estimated using the Black-Scholes option-pricing model with the following weighted average assumptions: Years Ended December 31, Employee stock purchase plan rights: 2021 2020 2019 Expected life (years) 0.5 0.5 0.5 Risk-free interest rate 0.1 % 0.9 % 2.4 % Expected volatility 39.3 % 45.4 % 38.7 % Expected annual dividends per share $ 0.88 $ 0.80 $ 0.80 Expected volatilities are based on a combination of implied and historical volatilities of the Company’s common stock; the expected life represents the weighted average period of time that options granted are expected to be outstanding giving consideration to vesting schedules and the Company’s historical exercise patterns; and the risk-free interest rate is based on the U.S. Treasury yield curve in effect at the time of grant for periods corresponding with the expected life of the option. The total fair value of RSUs vested during 2021, 2020 and 2019 was approximately $56.6, $86.2 and $68.1, respectively. As of December 31, 2021, the unrecognized compensation cost related to RSUs was approximately $35.6 and will be recognized over an estimated weighted average amortization period of 1 year.

Stockholders' Equity

Stockholders' Equity	12 Months Ended
	Dec. 31, 2021
Federal Home Loan Banks [Abstract]
Stockholders' Equity	18) Stockholders’ 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 of its outstanding common stock from time to time in open market purchases, privately negotiated transactions or through other appropriate means. The timing and quantity of any shares repurchased will depend upon a variety of factors, including business conditions, stock market conditions and business development activities, including, but not limited to, merger and acquisition opportunities. These repurchases may be commenced, suspended or discontinued at any time without prior notice. The Company has repurchased approximately 2.6 shares of common stock for approximately $127 pursuant to the program since its adoption. During 2021, 2020 and 2019, there were no repurchases of common stock. 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. The Company’s Board of Directors declared a cash dividend of $0.20 per share during the first quarter of 2021 and $0.22 per share during the second, third and fourth quarters of 2021, which totaled $47.6 or $0.86 per share. The Company’s Board of Directors declared a cash dividend of $0.20 per share during each quarter of 2020, which totaled $44.0 or $0.80 per share. Future dividend declarations, if any, as well as the record and payment dates for such dividends, are subject to the final determination of the Company’s Board of Directors . On February 7, 2022, the Company’s Board of Directors declared a quarterly cash dividend of $0.22 per share to be paid on March 11, 2022 to Stockholders of record as of February 28, 2022.

Employee Benefit Plans

Employee Benefit Plans	12 Months Ended
	Dec. 31, 2021
Postemployment Benefits [Abstract]
Employee Benefit Plans	19) Employee Benefit Plans The Company has a 401(k) profit-sharing plan for U.S. employees meeting certain requirements, in which eligible employees may contribute between 1% and 50% of their annual compensation to this plan, and, with respect to employees who are age 50 and older, certain specified additional amounts, limited by an annual maximum amount determined by the Internal Revenue Service. The Company, at its discretion, makes certain matching contributions to this plan based on participating employees’ annual contribution to this plan and their total compensation. The Company’s contributions were $7.6, $7.2 and $6.9 for 2021, 2020 and 2019, respectively. The Company also has a small number of defined contribution plans at some of its foreign locations. The Company’s contributions were immaterial for 2021, 2020 and 2019. The Company maintains a bonus plan which provides cash awards to certain employees, at the discretion of the Compensation Committee of the Company’s Board of Directors, based upon the Company’s operating results. In addition, the Company’s foreign locations also have various bonus plans based upon local operating results and employee performance. The total bonus expense was $75.6, $66.4 and $32.2 for 2021, 2020 and 2019, respectively. The Company provides supplemental retirement benefits for a small number of retired executives. The total cost of these benefits was $0.1, $0.3 and $3.2 for 2021, 2020 and 2019, respectively. The accumulated benefit obligation was $2.6 and $2.5 as of December 31, 2021 and 2020, respectively, and was included in other non-current liabilities. The Company also assumed deferred compensation plans as a result of the Newport Merger and the ESI Merger. Participants in the Newport Deferred Compensation Plan were not permitted to make any new elections beginning with 2018 compensation. Participants in the ESI Deferred Compensation Plan were not permitted to make any new elections beginning with 2020 compensation. Defined Benefit Pension Plans The Company has a number of defined benefit pension plans, which cover substantially all of its full-time employees in France, Germany, Israel, Japan and Taiwan. In addition, the Company has certain pension assets and liabilities relating to its former employees in the United Kingdom. The German plan is unfunded, as permitted under the plan and applicable laws. For financial reporting purposes, the Company obtained actuarial reports supporting the calculation of net periodic pension costs that used 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 various plans. The Company reviewed these actuarial assumptions and concluded they were reasonable based upon management’s judgment, considering 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 net periodic benefit costs for the plans included the following components: Year Ended December 31, 2021 2020 Service cost $ 1.1 $ 1.0 Interest cost on projected benefit obligations 0.2 0.4 Expected return on plan assets (0.1 ) (0.1 ) Amortization of actuarial net loss 0.7 0.5 $ 1.9 $ 1.8 The changes in projected benefit obligations and plan assets, as well as the ending balance sheet amounts for the Company’s defined benefit plans, were as follows: Year Ended December 31, 2021 2020 Change in projected benefit obligations: Projected benefit obligations, beginning of year $ 36.2 $ 30.1 Service cost 1.1 1.0 Interest cost 0.2 0.4 Contributions by plan participants — 0.7 Plan amendments — (0.2 ) Actuarial loss 0.1 3.0 Benefits paid (1.4 ) (1.2 ) Currency translation adjustments (2.2 ) 2.4 Projected benefit obligations, end of year $ 34.0 $ 36.2 Change in plan assets: Fair value of plan assets, beginning of year $ 12.9 $ 11.1 Company contributions 0.7 1.1 (Loss) gain on plan assets (0.1 ) 0.6 Benefits paid (0.6 ) (0.5 ) Currency translation adjustments (0.6 ) 0.6 Fair value of plan assets, end of year 12.3 12.9 Net underfunded status $ (21.7 ) $ (23.3 ) As of December 31, 2021, the estimated benefit payments for the Company’s defined benefit plans for the next 10 years were as follows: Estimated benefit payments 2022 $ 1.1 2023 1.1 2024 1.2 2025 1.6 2026 1.4 2027-2031 8.6 $ 15.0 The Company expects to contribute less than $1.0 to the plans during 2022. The weighted-average rates used to determine the net periodic benefit costs were as follows: December 31, 2021 December 31, 2020 Discount rate 1.0 % 1.1 % Rate of increase in salary levels 2.0 % 2.2 % Expected long-term rate of return on assets 1.1 % 1.2 % In determining the expected long-term rate of return on plan assets, the Company considers the relative weighting of plan assets, the historical performance of total plan assets and individual asset classes, and economic and other indicators of future performance. Plan assets were held in the following categories as a percentage of total plan assets: December 31, 2021 December 31, 2020 Amount Percentage Amount Percentage Cash $ 0.2 1.6 % $ 0.2 1.3 % Debt securities 5.1 41.5 5.2 40.5 Equity securities 0.6 4.8 0.7 5.6 Other 6.4 52.1 6.8 52.6 $ 12.3 100 % $ 12.9 100 % In general, the Company’s asset management objectives include maintaining an adequate level of diversification to reduce interest rate and market risk, while providing adequate liquidity to meet immediate and future benefit payment requirements. The Company’s Israeli plans account for the deferred vested benefits using the shut-down method of accounting, which resulted in assets of $20.3 and vested benefit obligations of $23.1 as of December 31, 2021, and assets of $18.8 and vested benefit obligations of $21.7 as of December 31, 2020. Under the shut-down method, the liability is calculated as if it were payable as of the balance sheet date, on an undiscounted basis. Other Pension-Related Assets As of December 31, 2021 and 2020, the Company had assets with an aggregate market value of $6.2 and $6.5, respectively, for its German pension plans. These assets are invested in group insurance contracts through the insurance companies administering these plans, in accordance with applicable pension laws. These group insurance contracts have a guaranteed minimum rate of return ranging from 2.25% to 4.25%, depending on the contract. Because these assets were not separate legal assets of the pension plan, they were not included in the Company’s plan assets shown above. However, the Company has designated such assets to pay pension benefits. Such assets are included in other assets in the accompanying consolidated balance sheet.

Net Income Per Share

Net Income Per Share	12 Months Ended
	Dec. 31, 2021
Earnings Per Share [Abstract]
Net Income Per Share	20) Net Income Per Share The following is a reconciliation of basic to diluted net income per share: Years Ended December 31, Numerator: 2021 2020 2019 Net income $ 551.4 $ 350.1 $ 140.4 Denominator: Shares used in net income per common share – basic 55.4 55.1 54.7 Effect of dilutive securities 0.3 0.2 0.4 Shares used in net income per common share – diluted 55.7 55.3 55.1 Net income per common share: Basic $ 9.95 $ 6.36 $ 2.57 Diluted $ 9.90 $ 6.33 $ 2.55 Basic earnings per share (“EPS”) is computed by dividing income available to holders of our common stock 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 (RSUs) had been converted to such common shares, and if such assumed conversion is dilutive. In 2021, 2020 and 2019, the potential dilutive effect of the weighted average shares of RSUs that were excluded from the computation of diluted weighted-average shares outstanding, as the shares would have had an anti-dilutive effect on EPS, were immaterial.

Business Segment, Geographic Ar

Business Segment, Geographic Area, Product Information and Significant Customer Information	12 Months Ended
	Dec. 31, 2021
Segment Reporting [Abstract]
Business Segment, Geographic Area, Product Information and Significant Customer Information	21) Business Segment, Geographic Area, Product Information and Significant Customer Information The Company is a global provider of instruments, systems, subsystems and process control solutions that measure, monitor, deliver, analyze, power and control critical parameters of advanced manufacturing processes to improve process performance and productivity for its customers. The Company’s products are derived from its core competencies in pressure measurement and control, flow measurement and control, gas and vapor delivery, gas composition analysis, electronic control technology, reactive gas generation and delivery, power generation and delivery, vacuum technology, temperature sensing, lasers, photonics, optics, precision motion control, vibration control and laser-based manufacturing systems solutions. The Company also provides services relating to the maintenance and repair of its products, installation services and training. The Company’s primary served markets include semiconductor, industrial technologies, life and health sciences, research and defense. The Company’s Chief Operating Decision Maker (“CODM”), which is the Company’s Chief Executive Officer, 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. Reportable Segments The Vacuum & Analysis segment provides a broad range of instruments, components and subsystems 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, electronic control technology, reactive gas generation and delivery, power generation and delivery and vacuum technology. The Light & Motion segment provides a broad range of instruments, components and subsystems which are derived from the Company’s core competencies in lasers, photonics, optics, temperature sensing , precision motion control and vibration control. The Equipment & Solutions segment provides a range of products including laser-based systems for PCB manufacturing, which include flexible interconnect PCB processing systems and high-density interconnect solutions for rigid PCB manufacturing and substrate processing and multi-layer ceramic capacitor test systems. 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 groups its similar products within its three reportable segments. The following table sets forth net revenues by reportable segment: Years Ended December 31, 2021 2020 2019 Vacuum & Analysis $ 1,861.5 $ 1,405.9 $ 990.5 Light & Motion 813.4 689.6 725.6 Equipment & Solutions 274.7 234.5 183.7 $ 2,949.6 $ 2,330.0 $ 1,899.8 The following table sets forth a reconciliation of segment gross profit to consolidated net income: Years Ended December 31, 2021 2020 2019 Gross profit by reportable segment: Vacuum & Analysis $ 867.8 $ 633.7 $ 426.4 Light & Motion 384.8 309.8 336.8 Equipment & Solutions 127.6 106.0 67.2 Total gross profit by reportable segment 1,380.2 1,049.5 830.4 Operating expenses: Research and development 200.0 173.1 164.1 Selling, general and administrative 385.1 353.1 330.3 Acquisition and integration costs 29.8 3.8 37.3 Restructuring and other 11.1 9.4 7.0 Amortization of intangible assets 55.3 55.2 67.4 Asset impairment — 2.3 4.7 COVID-19 related net credits — (1.2 ) — Fees and expenses related to repricing of Term Loan Facility — — 6.6 Gain on sale of long-lived assets — — (6.8 ) Income from operations 698.9 453.8 219.8 Interest income 0.6 1.4 5.4 Interest expense 25.4 29.1 44.1 Other expense, net 8.6 3.1 3.3 Income before income taxes 665.5 423.0 177.8 Provision for income taxes 114.1 72.9 37.4 Net income $ 551.4 $ 350.1 $ 140.4 The following table set forth capital expenditures by reportable segment: Years Ended December 31, 2021 2020 2019 Vacuum & Analysis $ 36.6 $ 36.0 $ 34.1 Light & Motion 37.1 32.1 23.0 Equipment & Solutions 13.0 16.8 6.8 Total capital expenditures $ 86.7 $ 84.9 $ 63.9 The following table sets forth depreciation and amortization by reportable segment: Years Ended December 31, 2021 2020 2019 Vacuum & Analysis $ 22.9 $ 20.3 $ 16.8 Light & Motion 46.0 43.2 53.9 Equipment & Solutions 35.2 35.7 39.3 Total depreciation and amortization $ 104.1 $ 99.2 $ 110.0 Total income tax expense is not presented by reportable segment because the necessary information is not available or used by the CODM. The following table sets forth segment assets by reportable segment: Accounts Receivable Inventory Total December 31, 2021 Vacuum & Analysis $ 285.4 $ 338.9 $ 624.3 Light & Motion 146.2 177.3 323.5 Equipment & Solutions 36.3 61.5 97.8 Corporate, Eliminations & Other (25.3 ) (1.0 ) (26.3 ) Total segment assets $ 442.6 $ 576.7 $ 1,019.3 Accounts Receivable Inventory Total December 31, 2020 Vacuum & Analysis $ 229.1 $ 273.3 $ 502.4 Light & Motion 122.6 166.1 288.7 Equipment & Solutions 51.7 63.7 115.4 Corporate, Eliminations & Other (10.7 ) (1.7 ) (12.4 ) Total segment assets $ 392.7 $ 501.4 $ 894.1 The following is a reconciliation of segment assets to consolidated total assets: December 31, 2021 2020 Total segment assets $ 1,019.3 $ 894.1 Cash and cash equivalents and short-term investments 1,042.7 836.0 Other current assets 85.3 74.3 Property, plant and equipment, net 325.3 284.3 Right-of-use assets 184.3 184.4 Goodwill and intangible assets, net 1,804.2 1,578.6 Other assets and long-term assets 79.2 52.1 Consolidated total assets $ 4,540.3 $ 3,903.8 Geographic Area Information about the Company’s operations by geographic region is presented in the tables below. Net revenues from unaffiliated customers are based on the location in which the sale originated. Intercompany sales between geographic areas are at tax transfer prices and have been eliminated from consolidated net revenues. Years Ended December 31, 2021 2020 2019 Net revenues: North America (1) $ 1,271.8 $ 1,058.9 $ 888.4 South Korea 385.8 278.8 167.7 China 355.1 273.5 178.6 Taiwan 197.7 113.8 95.4 Japan 196.8 163.2 143.1 Other Asia 310.4 242.6 197.3 Europe 232.0 199.2 229.3 $ 2,949.6 $ 2,330.0 $ 1,899.8 (1 ) North America includes the United States and an immaterial amount from Canada. December 31, 2021 2020 Long-lived assets: (1) North America (2) $ 425.2 $ 364.0 Asia 105.7 94.8 Europe 35.6 45.1 $ 566.5 $ 503.9 (1 ) Long-lived assets include property, plant and equipment, net, right-of-use assets, and certain other assets, and exclude goodwill, intangible assets and long-term tax-related accounts. The increase in long-lived assets in North America for 2021 primarily relates to the Photon Control Acquisition. ( 2 ) North America includes the United States and an immaterial amount from Canada. Goodwill associated with each of the Company’s reportable segments is as follows: December 31, 2021 2020 Vacuum & Analysis $ 195.2 $ 196.2 Light & Motion 558.1 395.3 Equipment & Solutions 474.9 474.9 Total goodwill $ 1,228.2 $ 1,066.4 The Company sells products and services to thousands of customers worldwide, in a wide range of end markets. Revenues from its top ten customers accounted for 47%, 44% and 33% of net revenues for 2021, 2020 and 2019, respectively, with the increasing percentages attributable to increasing semiconductor market sales. As a percentage of revenue to the Company’s top ten customers, semiconductor market revenue accounted for greater than 90% in each year. The Company had two customers with net revenues greater than 10% of total net revenues for the years ended December 31, 2021 and 2020, as shown below. No individual customers accounted for greater than 10% of the Company’s net revenues in 2019. Years Ended December 31, 2021 2020 2019 Lam Research Corporation 16% 14% 9% Applied Materials, Inc. 11% 11% 9%

Restructuring and Other

Restructuring and Other	12 Months Ended
	Dec. 31, 2021
Expense Of Restructuring Activities And Other [Abstract]
Restructuring and Other	22) Restructuring and Other Restructuring During 2021, the Company recorded restructuring charges of $7.0, primarily related to severance costs due to a global cost saving initiative, costs related to the pending closure of two facilities in Europe and the movement of the manufacturing of products to low cost regions. During 2020, the Company recorded restructuring charges of $2.7, primarily related to costs incurred from the pending closure of a facility in Europe and costs related to the exit of certain product groups. The activity related to the Company’s restructuring accrual is shown below: 2021 2020 Balance at January 1 $ 0.3 $ 3.7 Charged to expense 7.0 2.7 Payments and adjustments (4.7 ) (6.1 ) Balance at December 31 $ 2.6 $ 0.3 Other During 2021, the Company recorded charges of $2.8 related primarily to duplicate facility costs. During 2020, the Company recorded charges of $7.2 related to duplicate facility costs. The Company also received an insurance reimbursement of $0.5 for costs recorded on a legal settlement from a contractual obligation assumed as part of the Newport Merger.

Commitments and Contingencies

Commitments and Contingencies	12 Months Ended
	Dec. 31, 2021
Commitments And Contingencies Disclosure [Abstract]
Commitments and Contingencies	23) Commitments and Contingencies In 2016, two putative class actions lawsuit captioned Dixon Chung v. Newport Corp., et al., Case No. A-16-733154-C, and Hubert C. Pincon v. Newport Corp., et al., Case No. A-16-734039-B, were filed in the District Court, Clark County, Nevada on behalf of a putative class of stockholders of Newport for claims related to the merger agreement (“Newport Merger Agreement”) between the Company, Newport, and a wholly-owned subsidiary of the Company (“Merger Sub”). The lawsuits named as defendants the Company, Newport, Merger Sub, and certain then current and former members of Newport’s board of directors. Both complaints alleged that Newport directors breached their fiduciary duties to Newport’s stockholders by agreeing to sell Newport through an inadequate and unfair process, which led to inadequate and unfair consideration, by agreeing to unfair deal protection devices and by omitting material information from the proxy statement. The complaints also alleged that the Company, Newport and Merger Sub aided and abetted the directors’ alleged breaches of their fiduciary duties. The District Court consolidated the actions, and plaintiffs later filed an amended complaint captioned In re Newport Corporation Shareholder Litigation, Case No. A-16-733154-B, in the District Court, Clark County, Nevada, on behalf of a putative class of Newport’s stockholders for claims related to the Newport Merger Agreement. The amended complaint alleged Newport’s former board of directors breached their fiduciary duties to Newport’s stockholders and that the Company, Newport and Merger Sub had aided and abetted these breaches and sought monetary damages, including pre- and post-judgment interest. In June 2017, the District Court granted defendants’ motion to dismiss and dismissed the amended complaint against all defendants but granted plaintiffs leave to amend. On July 27, 2017, plaintiffs filed a second amended complaint containing substantially similar allegations but naming only Newport’s former directors as defendants. On August 8, 2017, the District Court dismissed the Company and Newport from the action. The second amended complaint seeks monetary damages, including pre- and post-judgment interest. The District Court granted a motion for class certification on September 27, 2018, appointing Mr. Pincon and Locals 302 and 612 of the International Union of Operating Engineers - Employers Construction Industry Retirement Trust as class representatives. On June 11, 2018, plaintiff Dixon Chung was voluntarily dismissed from the litigation. On August 9, 2019, plaintiffs filed a motion for leave to file a third amended complaint, which was denied on October 10, 2019. On August 23, 2019, defendants filed a motion for summary judgment. On January 23, 2020, the District Court entered its findings of fact, conclusions of law, and order granting defendants’ motion for summary judgment. On February 18, 2020, plaintiffs filed a notice of appeal from the District Court’s order granting defendants’ motion for summary judgment, as well as from the District Court’s prior orders granting defendants’ motion for a bench trial and denying plaintiffs’ motion for leave to file an amended complaint. On November 30, 2020, plaintiffs filed their opening brief in the Nevada Supreme Court in support of their appeal from the District Court’s orders. On January 29, 2021, defendants filed their answering brief, and on March 30, 2021, plaintiffs filed their reply brief. The Nevada Supreme Court heard oral argument on December 15, 2021. The Company is also subject to various legal proceedings and claims that have arisen in the ordinary course of business. In the opinion of management, the ultimate disposition of these matters, and the matters noted above, will not have a material adverse effect on the Company’s results of operations, financial condition or cash flows. On July 1, 2021 , the Company entered into a definitive agreement (as amended from time to time, the “Implementation Agreement”) to acquire Atotech, a leading process chemicals technology company and a market leader in advanced electroplating solutions. Pursuant to the Implementation Agreement, the Company agreed to pay $ 16.20 per share in cash and 0.0552 of a share of MKS common stock for each outstanding common share of Atotech . At the time of the announcement of the acquisition, the total value of the aggregate cash and stock consideration was approximately $ 5,100 . The final value of the consideration will be determined at the time of the closing of t he acquisition , which is expected to occur in the first quarter of 2022, subject to the satisfaction of certain closing conditions, including receipt of regulatory approval from China and approval by the Royal Court of Jersey. The Company’s obligations to complete the acquisition are not subject to any financing condition. The Company intends to fund the cash portion of the transaction with a combination of available cash on hand and committed term loan debt financing. In connection with entering into the Implementation Agreement, the Company entered into (a) a commitment letter (the “Initial Commitment Letter”), dated as of July 1, 2021, with JPMorgan Chase Bank, N.A. and Barclays Bank PLC (collectively, the “Initial Commitment Parties”) and (b) joinders to the Initial Commitment Letter to add certain additional lender parties (the “Commitment Letter Joinders” and, together with the Initial Commitment Letter, the “Commitment Letter”) dated as of July 23, 2021, with the Initial Commitment Parties and the additional lenders party thereto (collectively, the “Supplemental Commitment Parties” and, together with the Initial Commitment Parties, the “Commitment Parties”), pursuant to which, subject to the terms and conditions set forth therein, the Commitment Parties committed to provide (i) a senior secured term loan credit facility in an aggregate principal amount of $ 5,300 (the “New Term Loan Facility”) and (ii) a senior secured revolving credit facility with aggregate total commitments of $ 500 (the “New Revolving Credit Facility”). The New Term Loan Facility and New Revolving Credit Facility would refinance the Term Loan Facility and ABL Facility, respectively, and the New Term Loan Facility would be used to finance a portion of the acquisition and to refinance certain existing indebtedness of Atotech . On October 22, 2021, the Company completed the syndication of the New Term Loan Facility, comprised of two tranches: a USD 4,700 loan at LIBOR plus 2.25%, a floor of 0.50% and 0.25% of original issue discount, and a Euro tranche of EUR 500 (approximately USD 600) at EURIBOR plus 2.75%, a floor of 0.00% and 0.25% of original issue discount. Subsequent to the syndication, the $4.7 billion tranche is expected to be modified to reference a term rate based on the Secured Overnight Financing Rate (plus an applicable credit spread adjustment) as the benchmark rate . The Commitment Parties’ obligations under the Commitment Letter and the closing and initial funding under the New Term Loan Facility are subject to certain customary conditions including, without limitation, the consummation of the acquisition of Atotech in accordance with the Implementation Agreement, the accuracy of specified representations and warranties of the Company and other customary closing conditions. As of December 31, 2021, the Company has entered into purchase commitments for certain inventory components and other equipment and services used in its normal operations. The majority of the purchase commitments covered by these arrangements are for periods of less than one year and aggregate to approximately $367.7. To the extent permitted by Massachusetts law, the Company’s Restated Articles of Organization, as amended, require the Company to indemnify any of its current or former officers or directors or any person who has served or is serving in any capacity with respect to any of the Company’s employee benefit plans. The Company believes that the estimated exposure for these indemnification obligations is currently not material. Accordingly, the Company has no material liabilities recorded for these requirements as of December 31, 2021. The Company also enters into agreements in the ordinary course of business which include indemnification provisions. Pursuant to these agreements, the Company indemnifies, holds harmless and agrees to reimburse the indemnified party, generally its customers, for losses suffered or incurred by the indemnified party in connection with certain patent or other intellectual property infringement claims, and, in some instances, other claims, by any third party with respect to the Company’s As part of past acquisitions and divestitures of businesses or assets, the Company has provided a variety of indemnifications to the sellers and purchasers for certain events or occurrences that took place prior to the date of the acquisition or divestiture. Typically, certain of the indemnifications expire after a defined period of time following the transaction, but certain indemnifications may survive indefinitely. The maximum potential amount of future payments the Company could be required to make for such obligations is undeterminable at this time. Other than obligations recorded as liabilities at the time of the acquisitions, historically the Company has not made significant payments for these indemnifications. Accordingly, no material liabilities have been recorded for these obligations. In conjunction with certain asset sales, the Company may provide routine indemnifications whose terms range in duration and often are not explicitly defined. Where appropriate, an obligation for such indemnification is recorded as a liability. Because the amounts of liability under these types of indemnifications are not explicitly stated, the overall maximum amount of the obligation under such indemnifications cannot be reasonably estimated. Other than obligations recorded as liabilities at the time of the asset sale, historically the Company has not made significant payments for these indemnifications.

Schedule II - Valuation and Qua

Schedule II - Valuation and Qualifying Accounts	12 Months Ended
	Dec. 31, 2021
Valuation And Qualifying Accounts [Abstract]
Schedule II - Valuation and Qualifying Accounts	MKS Instruments, Inc. SCHEDULE II - VALUATION AND QUALIFYING ACCOUNTS (in millions) Additions Description Balance at Beginning of Year Acquisition Beginning Balance Charged to Costs and Expenses Charged to Other Accounts Deductions & Write-offs Balance at End of Year Allowance for doubtful accounts: Years ended December 31, 2021 $ 2.0 $ — $ 1.3 $ — $ 0.3 $ 3.6 2020 $ 1.8 $ — $ 0.1 $ — $ 0.1 $ 2.0 2019 $ 5.2 $ 0.2 $ (0.7 ) $ — $ (2.9 ) $ 1.8 Additions Description Balance at Beginning of Year Acquisition Beginning Balance Charged to Costs and Expenses Charged to Other Accounts Deductions & Write-offs Balance at End of Year Allowance for sales returns: Years ended December 31, 2021 $ 1.8 $ — $ (0.1 ) $ — $ (0.1 ) $ 1.6 2020 $ 1.4 $ — $ 0.3 $ — $ 0.1 $ 1.8 2019 $ 1.0 $ — $ 0.2 $ — $ 0.2 $ 1.4 Additions Description Balance at Beginning of Year Acquisition Beginning Balance Charged to Costs and Expenses Charged to Other Accounts Deductions Balance at End of Year Valuation allowance on deferred tax asset: Years ended December 31, 2021 $ 30.6 $ — $ 2.3 $ — $ (6.7 ) $ 26.2 2020 $ 27.4 $ — $ 4.2 $ — $ (1.0 ) $ 30.6 2019 $ 17.9 $ 5.9 $ 4.9 $ — $ (1.3 ) $ 27.4

Summary of Significant Accoun_2

Summary of Significant Accounting Policies (Policies)	12 Months Ended
	Dec. 31, 2021
Organization Consolidation And Presentation Of Financial Statements [Abstract]
Revenue from Contracts with Customers	Revenue from Contracts with Customers The Company accounts for revenue using Accounting Standards Codification (“ASC”) 606 (“ASC 606”). The Company applies ASC 606 using the following steps: • Identify the contract with a customer • Identify the performance obligations in the contract • Determine the transaction price • Allocate the transaction price to performance obligations in the contract • Recognize revenue when or as the Company satisfies a performance obligation Revenue is recognized when or as obligations under the terms of a contract with the Company’s customer has been satisfied and control has transferred to the customer. The majority of the Company’s performance obligations, and associated revenue, are transferred to customers at a point in time, generally upon shipment of a product to the customer or receipt of the product by the customer and without significant judgments. Installation services are not significant and are usually completed in a short period of time (normally less than two weeks) and therefore, recorded at a point in time when the installation services are completed, rather than over time as they are not material. Extended warranty, service contracts, and repair services, which are transferred to the customer over time, are recorded as revenue as the services are performed. For repair services, the Company makes an accrual at quarter end based upon historical repair times within its product groups to record revenue based upon the estimated number of days completed to date, which is consistent with ratable recognition. Customized products with no alternative future use to the Company, and that have an enforceable right to payment for performance completed to date, are also recorded over time. The Company considers this to be a faithful depiction of the transfer to the customer of revenue over time as the work is performed or service is delivered, ratably over time. These adjustments were not material for 202 1 or 20 20 . Revenue is measured as the amount of consideration the Company expects to receive in exchange for transferring goods or providing services. Performance obligations promised in a contract are identified based on the products or services that will be transferred to the customer that are both capable of being distinct, whereby the customer can benefit from the product or service either on its own or together with other resources that are readily available from third parties or from the Company, and are distinct in the context of the contract, whereby the transfer of the product or service is separately identifiable from other promises in the contract. Sales, value add, and other taxes the Company collects concurrent with revenue-producing activities are excluded from revenue. The Company’s normal payment terms are 30 to 60 days, but vary by the type and location of its customers and the products or services offered. For certain products and services and customer types, the Company requires payment before the products or services are delivered to, or performed for, the customer. None of the Company’s contracts as of December 31, 2021 contained a significant financing component. Contracts with Multiple Performance Obligations The Company periodically enters into contracts with its customers in which a customer may purchase a combination of goods and or services, such as products with installation services or extended warranties. These contracts include multiple promises that the Company evaluates to determine if the promises are separate performance obligations. Once the Company determines the performance obligations, the Company then determines the transaction price, which includes estimating the amount of variable consideration to be included in the transaction price, if any. To the extent the transaction price includes variable consideration, the Company estimates the amount of variable consideration that should be included in the transaction price utilizing either the expected value method or the most likely amount method depending on the method the Company expects to better predict the amount of consideration to which it will be entitled. There are no constraints on the variable consideration recorded. The Company then allocates the transaction price to each performance obligation in the contract based on a relative stand-alone selling price charged separately to customers or using an expected cost-plus-margin method. The corresponding revenues are recognized when or as the related performance obligations are satisfied, which are noted above. The impact of variable consideration was immaterial during 2021, 2020 and 2019. Deferred Revenues The Company’s standard assurance warranty period is normally 12 to 24 months. The Company sells separately priced service contracts and extended warranty contracts related to certain of its products. The separately priced contracts generally range from 12 to 60 months. The Company normally receives payment at the inception of the contract and recognizes revenue over the term of the agreement in proportion to the costs expected to be incurred in satisfying the obligations under the contract. The Company has elected to use the practical expedient related to disclosing the remaining performance obligations as of December 31, 2021 and 2020, as the majority have a duration of less than one year. Costs to Obtain and Fulfill a Contract The Company expenses sales commissions when incurred because the amortization period would have been one year or less. These costs are recorded within selling, general and administration expenses. The Company has elected to recognize the costs for freight and shipping when control over products has transferred to the customer as an expense in cost of sales. Product revenues, excluding revenue from certain custom products, is recorded at a point in time, while the majority of service revenues and revenue from certain custom products is recorded over time.
Accounts Receivable Allowances	Accounts Receivable Allowances Accounts receivable allowances include sales returns and bad debt allowances. The Company monitors and tracks the amount of product returns and reduces revenue at the time of shipment for the estimated amount of such future returns, based on historical experience. The Company makes estimates evaluating its allowance for doubtful accounts. The Company continuously monitors collections and payments from its customers and maintains a provision for estimated credit losses based upon its historical experience and any specific customer collection issues that it has identified.
Research and Development	Research and Development Research and development costs are expensed as incurred and consist mainly of compensation-related expenses and project materials. The Company’s research and development efforts include numerous projects, which generally have a duration of 3 to 30 months. Acquired in-process research and development (“IPR&D”) expenses, if acquired in a business combination, are capitalized at fair value as an intangible asset until the related project is completed, are then amortized over the estimated useful life of the product. The Company monitors projects and, if they are abandoned, the Company writes them off.
Advertising Costs	Advertising Costs Advertising costs are expensed as incurred and were immaterial in 2021, 2020 and 2019.
Leases	Leases The Company accounts for leases under ASC 842, “Leases”. Under ASC 842, a contract is or contains a lease when the Company has the right to control the use of the identified asset. The Company determines if an arrangement is a lease at inception of the contract, which is the date on which the terms of the contract are agreed to and the agreement creates enforceable rights and obligations. The commencement date of the lease is the date that the lessor makes an underlying asset available for use. The Company determines if the lease is an operating or finance lease at the lease commencement date based upon the terms of the lease and the nature of the asset. The lease term used to calculate the lease liability includes options to extend or terminate the lease when it is reasonably certain that the option will be exercised. The Company does not have material financing leases. The Company measures the lease liability as the present value of future lease payments, discounted using the discount rate for the lease at the commencement date. The Company is typically unable to determine the implicit interest rate, so it uses an incremental borrowing rate based on the lease term and economic environment at commencement date. The ROU asset is initially measured as the amount of the lease liability, adjusted for any initial lease costs, prepaid lease payments and reduced by any lease incentives. The Company’s contracts often include non-lease components such as common area maintenance. MKS has elected the practical expedient to account for the lease and non-lease components as a single lease component. For leases with a term of one year or less the Company has elected not to record the lease asset or liability. The lease payments are recognized in the consolidated statement of earnings on a straight-line basis over the lease term. The Company includes lease costs within cost of revenues and operating expenses.
Stock-Based Compensation	Stock-Based Compensation The accounting for share-based compensation expense requires the measurement and recognition of compensation expense for all share-based payment awards made to employees and directors based on estimated fair values. For restricted stock units (“RSUs”), the fair value is measured on the date of grant and expensed normally over a three-year ESPP Management determined that blended volatility, a combination of historical and implied volatility, is more reflective of market conditions and a better indicator of expected volatility than historical or implied volatility alone. The assumptions used in calculating the fair value of share-based payment awards represent management’s best estimates, but these estimates involve inherent uncertainties and the application of management judgment. As a result, if factors change and the Company uses different assumptions, stock-based compensation expense could be materially different in the future.
Accumulated Other Comprehensive Income	Accumulated Other Comprehensive Income For foreign subsidiaries where the functional currency is the local currency, assets and liabilities are translated into U.S. dollars at the current exchange rate on the balance sheet date. Revenue and expenses are translated at average rates of exchange prevailing during the year. Translation adjustments resulting from this process are recorded to Accumulated Other Comprehensive Income ( “ ”
Net Income Per Share	Net Income Per Share Basic net income per share is based on the weighted average number of common shares outstanding and diluted net income per share is based on the weighted average number of common shares outstanding and all potential dilutive common equivalent shares outstanding. The dilutive effect of equity awards are determined under the treasury stock method using the average market price for the period. Common equivalent shares are included in the per share calculations when the effect of their inclusion would be dilutive.
Cash and Cash Equivalents and Investments	Cash and Cash Equivalents and Investments All highly liquid investments with a maturity date of three months or less at the date of purchase are considered to be cash equivalents. The appropriate classification of investments in securities is determined at the time of purchase. Debt securities that the Company does not have the intent and ability to hold to maturity are classified as “available-for-sale” and are carried at fair value. The Company classifies investments with maturity dates greater than twelve months in short-term investments rather than long-term investments. This method classifies these securities as current based on the nature of the securities and the availability for use in current operations. The Company believes this method is preferable because it is more reflective of the Company’s assessment of its overall liquidity position. The Company reviews its investment portfolio on a quarterly basis to identify and evaluate individual investments that have indications of possible impairment. The factors considered in determining whether a loss is other-than-temporary include: the length of time and extent to which fair market value has been below the cost basis, the financial condition and near-term prospects of the issuer, credit quality, and the Company’s ability to hold the investment for a period of time sufficient to allow for any anticipated recovery in fair value.
Concentrations of Credit Risk	Concentrations of Credit Risk The Company’s significant concentrations of credit risk consist principally of cash and cash equivalents, investments, forward exchange contracts, interest rate swaps and trade accounts receivable. The Company maintains cash and cash equivalents with financial institutions, including some banks with which it had borrowings. The Company maintains investments primarily in U.S. Treasury and government agency securities and corporate debt securities. The Company enters into forward currency contracts with high credit-quality financial institutions in order to minimize credit risk exposure. The Company’s largest customers are primarily concentrated in the semiconductor industry, and a limited number of these customers account for a significant portion of the Company’s revenues. The Company regularly monitors the creditworthiness of its customers and believes it has adequately provided for potential credit loss exposures. Credit is extended for all customers based primarily on financial condition, and collateral is not required. During 2021, 2020 and 2019, approximately 62%, 59% and 49% of the Company’s net revenues, respectively, were from sales to semiconductor capital equipment manufacturers and semiconductor device manufacturers. One customer represented approximately 18%
Inventories	Inventories Inventories are stated at the lower of cost or net realizable value, cost being determined using a standard costing system which approximates cost based on a first-in, first-out method. The Company regularly reviews inventory quantities on hand and records a provision to write-down excess and obsolete inventory to its estimated net realizable value, if less than cost, based primarily on its estimated forecast of product demand .
Property, Plant and Equipment	Property, Plant and Equipment Property, plant and equipment are stated at cost. Expenditures for major renewals and betterments that extend the useful lives of property, plant and equipment are capitalized. Expenditures for maintenance and repairs are charged to expense as incurred. When assets are sold or otherwise disposed of, the cost and related accumulated depreciation are eliminated from the accounts and any resulting gain or loss is recognized in earnings. Depreciation is provided on the straight-line method over the estimated useful lives of ten to fifty years for buildings and building improvements, three to eighteen years for machinery and equipment, furniture and fixtures, office equipment and software. Leasehold improvements are amortized over the shorter of the lease term or the estimated useful life of the leased asset.
Acquisition Accounting	Acquisition Accounting The fair value of the consideration exchanged in a business combination is allocated to tangible assets and identifiable intangible assets acquired and liabilities assumed at acquisition date fair value. Goodwill is measured as the excess of the consideration transferred over the net fair value of identifiable assets acquired and liabilities assumed. The accounting for an acquisition involves a considerable amount of judgement and estimation. Cost, income, market or a combination of approaches may be used to establish the fair value of consideration exchanged, assets acquired, and liabilities assumed, depending on the nature of those items. The valuation approach is determined in accordance with generally accepted valuation methods. Key areas of estimation and judgment may include the selection of valuation approaches, cost of capital, market characteristics, cost structure, impacts of synergies, and estimates of terminal value, among other factors. While the Company uses estimates and assumptions as part of the purchase price allocation process to estimate the value of assets acquired and liabilities assumed, estimates are inherently uncertain and subject to refinement. During the measurement period, which maybe up to one year from the acquisition date, the Company may record adjustments to the assets acquired and liabilities assumed, with a corresponding offset to goodwill, to the extent that adjustments are identified to the preliminary purchase price allocation. Upon conclusion of the measurement period, or final determination of the value of the assets acquired and liabilities assumed, whichever comes first, any subsequent adjustments are recorded to results of operations.
Intangible Assets	Intangible Assets Intangible assets resulting from the acquisitions of businesses are estimated by management based on the fair value of assets acquired. These include acquired customer lists, technology, patents, trademarks, trade names and IPR&D. Intangible assets are amortized from one to eighteen years on a straight-line basis which represents the estimated periods of benefit and the expected pattern of consumption.
Goodwill	Goodwill Goodwill is the amount by which the cost of acquired net assets exceeded the fair value of those net assets on the date of acquisition. The Company allocates goodwill to reporting units at the time of acquisition or when there is a change in the reporting structure and bases that allocation on which reporting units will benefit from the acquired assets and liabilities. Reporting units are defined as operating segments or one level below an operating segment, referred to as a component. The Company assesses goodwill for impairment on an annual basis as of October 31 or more frequently when events and circumstances occur indicating that the recorded goodwill may be impaired. The estimated fair value of the Company’s reporting units is based on discounted cash flow models derived from internal earnings and internal and external market forecasts. Determining fair value requires the exercise of significant judgment, including judgments about appropriate discount and terminal growth rates, as well as forecasted revenue, gross profit and operating margins. Discount rates are based on a weighted average cost of capital (“WACC”), which represents the average rate a business must pay its providers of debt and equity. The WACC used to test goodwill is derived from a group of comparable companies. Assumptions in estimating future cash flows are subject to a high degree of judgment and complexity. The Company makes every effort to forecast these future cash flows as accurately as possible with the information available at the time the forecast is developed . In performing the Company’s annual goodwill impairment test, the Company is permitted to first assess qualitative factors to determine whether it is more likely than not that the fair value of the Company’s reporting unit is less than its carrying amount, including goodwill. In performing the qualitative assessment, the Company considers certain events and circumstances specific to the reporting unit and to the entity as a whole, such as macroeconomic conditions, industry and market considerations, overall financial performance and cost factors when evaluating whether it is more likely than not that the fair value of the reporting unit is less than its carrying amount. The Company is also permitted to bypass the qualitative assessment and proceed directly to the quantitative test. If the Company chooses to undertake the qualitative assessment and concludes that it is more likely than not that the fair value of the reporting unit is less than its carrying amount, the Company would then proceed to the quantitative impairment test. In the quantitative assessment, the Company compares the fair value of the reporting unit to its carrying amount, which includes goodwill. If the fair value exceeds the carrying value, no impairment loss exists. If the fair value is less than the carrying amount, a goodwill impairment loss is measured and recorded. As of October 31, 2021, the Company performed its annual impairment assessment of goodwill by performing a qualitative analysis for all of its reporting units and determined that it is more likely than not that the fair values of the reporting units exceed their carrying amount .
Impairment of Long-Lived Assets	Impairment of Long-Lived Assets The Company evaluates the recoverability of its long-lived assets whenever events and changes in circumstances indicate that the carrying amount of an asset may not be fully recoverable. This periodic review may result in an adjustment of estimated depreciable lives or asset impairment. When indicators of impairment are present, the carrying values of the asset are evaluated in relation to their operating performance and future undiscounted cash flows of the underlying business. If the future undiscounted cash flows are less than their carrying value, impairment exists. The impairment is measured as the difference between the carrying value and the fair value of the underlying asset. Fair values are based on estimates of market prices and assumptions concerning the amount and timing of estimated future cash flows and assumed discount rates, reflecting varying degrees of perceived risk.
Foreign Exchange	Foreign Exchange The functional currency of the majority of the Company’s foreign subsidiaries is the applicable local currency. For those subsidiaries, assets and liabilities are translated to U.S. dollars at year-end exchange rates. Income and expense accounts are translated at the average exchange rates prevailing during the year. The resulting translation adjustments are included in accumulated other comprehensive (loss) income in consolidated stockholders’ equity. Foreign exchange transaction gains and losses are classified in other income/expense in the statement of operations and comprehensive income. Net foreign exchange losses resulting from re-measurement were $8.7, $3.5 and $3.6 for the years ended December 31, 2021, 2020, and 2019, respectively, and are included in other expense, net. These amounts do not reflect the corresponding gain (loss) from foreign exchange forward contracts, which are included in cost of sales. See Note 9 regarding foreign exchange contracts.
Employee Benefit Plans	Employee Benefit Plans The majority of the Company’s employees participate in defined contribution plans, whereby the Company, at its discretion, makes certain matching contributions based on participating employees’ annual contribution to the plan and their total compensation. The Company also has defined benefit retirement plans at certain of its foreign subsidiaries. The Company accounts for these plans based on the provisions of ASC Topic 715, “Compensation-Retirement Benefits.” Some of the key assumptions used to calculate the pension expense and projected benefit obligation include the discount rate, rate of forecasted salary increases, the expected long-term rate of return on plan assets and expected mortality. The obligation for these claims and the related periodic costs are measured using actuarial techniques and assumptions. Actuarial gains and losses are deferred and amortized over future periods.
Income Taxes	Income Taxes The Company records income taxes using the asset and liability method. Deferred income tax assets and liabilities are recognized for the future tax consequences attributable to differences between the financial statement carrying amounts of existing assets and liabilities and their respective income tax bases, and also for operating loss and tax credit carryforwards. On a quarterly basis, the Company evaluates both the positive and negative evidence that affects the realizability of net deferred tax assets and assesses the need for a valuation allowance. The future benefit to be derived from its deferred tax assets is dependent upon its ability to generate sufficient future taxable income in each jurisdiction of the right type to realize the assets. The Company records a valuation allowance to reduce its net deferred tax assets to the amount that is expected to be realized. To the extent the Company establishes a valuation allowance an expense will be recorded as a component of the provision for income taxes on the statement of operations. Accounting for income taxes requires a two-step approach to recognize and measure uncertain tax positions. The first step is to evaluate the tax position for recognition by determining if, based on the technical merits, it is more likely than not that the position will be sustained upon audit, including resolutions of related appeals or litigation processes, if any. The second step is to measure the tax benefit as the largest amount that is more than 50% likely of being realized upon ultimate settlement. The Company re-evaluates these uncertain tax positions on a quarterly basis. This evaluation is based on factors including, but not limited to, changes in facts or circumstances, changes in tax law, effectively settled issues under audit and new audit activity. Any change in these factors could result in the recognition of a tax benefit or an additional charge to the tax provision. Income tax effects resulting from changes in tax law are accounted for by the Company in the period in which the law is enacted and the effects are recorded as a component of provision for income taxes from continuing operations.

Acquisition (Tables)

Acquisition (Tables)	12 Months Ended
	Dec. 31, 2021
Business Acquisition [Line Items]
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 ESI Merger had occurred on January 1, 2018. 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 the year. In addition, the unaudited pro forma financial information does not attempt to project the future results of operations of the combined Company. Year Ended December 31, 2019 Total net revenues $ 1,914.6 Net income $ 171.5 Net income per share: Basic $ 3.14 Diluted $ 3.11
Photon Control Inc [Member]
Business Acquisition [Line Items]
Summary of Purchase Price	The purchase price of Photon Control consisted of the following: Cash paid for outstanding shares (1) $ 302.7 Less: Cash and cash equivalents acquired (34.3 ) Total purchase price, net of cash and cash equivalents acquired $ 268.4 (1) Represents cash paid of CAD 3.60 per share for approximately 105.2 shares of Photon Control common stock, without interest and subject to deduction for any required withholding tax.
Summary of Estimated Fair Value of Assets Acquired and Liabilities Assumed	The following table summarizes the allocation of the purchase price to the fair values assigned to assets acquired and liabilities assumed at the date of the Photon Control Acquisition: Current assets $ 51.4 Intangible assets 121.2 Goodwill 168.0 Other non-current assets 8.6 Total assets acquired 349.2 Current liabilities 13.7 Non-current deferred taxes 32.1 Other long-term liabilities 0.7 Total liabilities assumed 46.5 Fair value of assets acquired and liabilities assumed 302.7 Less: Cash and cash equivalents acquired (34.3 ) Total purchase price, net of cash and cash equivalents acquired $ 268.4
Allocation of Acquired Intangible Assets and Related Estimates of Useful Lives	The following table reflects the allocation of the acquired intangible assets and related estimate of useful lives: Completed technology $ 110.0 9 years Customer relationships 9.4 10 years Trade names 0.2 0.5 years Backlog 1.6 1.5 years $ 121.2
Electro Scientific Industries Inc [Member]
Business Acquisition [Line Items]
Summary of Purchase Price	The purchase price of ESI consisted of the following: Cash paid for outstanding shares (1) $ 1,032.7 Settlement of share-based compensation awards (2) 30.6 Total purchase price 1,063.3 Less: cash and cash equivalents acquired (44.1 ) Total purchase price, net of cash and cash equivalents acquired $ 1,019.2 (1) Represents cash paid of $30.00 per share for approximately 34.4 shares of ESI common stock, without interest and subject to a deduction for any required withholding tax. (2)
Summary of Estimated Fair Value of Assets Acquired and Liabilities Assumed	The following table summarizes the allocation of the purchase price to the fair values assigned to assets acquired and liabilities assumed at the date of the ESI Merger: Current assets (excluding inventory) $ 208.0 Inventory 81.7 Intangible assets 316.2 Goodwill 474.0 Property, plant and equipment 65.5 Long-term assets 9.6 Total assets acquired 1,155.0 Current liabilities 51.5 Non-current deferred taxes 33.0 Other long-term liabilities 7.2 Total liabilities assumed 91.7 Fair value of assets acquired and liabilities assumed 1,063.3 Less: Cash and cash equivalents acquired (44.1 ) Total purchase price, net of cash and cash equivalents acquired $ 1,019.2
Allocation of Acquired Intangible Assets and Related Estimates of Useful Lives	The following table reflects the allocation of the acquired intangible assets and related useful lives: Completed technology - Laser $ 255.7 12 years Completed technology - Non-Laser 18.3 10 years Trademarks and trade names 14.4 7 years Customer relationships 25.4 10 years Backlog 2.4 1 year $ 316.2
Schedule of Consolidated Net Revenue and Earnings	The Company’s consolidated net revenue and earnings for the year ended December 31, 2019 include the following amounts of revenue and earnings of ESI since the acquisition date: Year Ended December 31, 2019 Total net revenues $ 183.7 Net loss $ (33.5 ) Net loss per share: Basic $ (0.61 ) Diluted $ (0.61 )

Revenue from Contracts with C_2

Revenue from Contracts with Customers (Tables)	12 Months Ended
	Dec. 31, 2021
Revenue From Contract With Customer [Abstract]
Schedule of Deferred Revenue and Customer Advances by Arrangement	A roll forward of the Company’s deferred revenue and customer advances is as follows: 2021 2020 Beginning balance, January 1 (1) $ 36.7 $ 24.8 Additions to deferred revenue and customer advances 172.5 107.4 Amount of deferred revenue and customer advances recognized in income (168.9 ) (95.5 ) Ending balance, December 31 (2) $ 40.3 $ 36.7 (1) Beginning deferred revenue and customer advances as of January 1, 2021 included $18.3 of current deferred revenue, $5.6 of long-term deferred revenue and $12.8 of current customer advances. Beginning deferred revenue and customer advances as of January 1, 2020 included $12.4 of current deferred revenue, $3.3 of long-term deferred revenue and $9.1 of current customer advances. (2) Ending deferred revenue and customer advances as of December 31, 2021 included $16.6 of current deferred revenue, $2.8 of long-term deferred revenue and $20.9 of current customer advances. Ending deferred revenue and customer advances as of December 31, 2020 included $18.3 of current deferred revenue, $5.6 of long-term deferred revenue and $12.8 of current customer advances.
Summary of Revenue from Contracts with Customers	The following table summarizes revenue from contracts with customers: Year Ended December 31, 2021 Vacuum & Analysis Light & Motion Equipment & Solutions Total Net revenues: Products $ 1,629.0 $ 742.5 $ 207.1 $ 2,578.6 Services 232.5 70.9 67.6 371.0 Total net revenues $ 1,861.5 $ 813.4 $ 274.7 $ 2,949.6 Year Ended December 31, 2020 Vacuum & Analysis Light & Motion Equipment & Solutions Total Net revenues: Products $ 1,222.4 $ 621.9 $ 170.5 $ 2,014.8 Services 183.5 67.7 64.0 315.2 Total net revenues $ 1,405.9 $ 689.6 $ 234.5 $ 2,330.0 Year Ended December 31, 2019 Vacuum & Analysis Light & Motion Equipment & Solutions Total Net revenues: Products $ 819.1 $ 663.7 $ 128.5 $ 1,611.3 Services 171.4 61.9 55.2 288.5 Total net revenues $ 990.5 $ 725.6 $ 183.7 $ 1,899.8

Investments (Tables)

Investments (Tables)	12 Months Ended
	Dec. 31, 2021
Investments Debt And Equity Securities [Abstract]
Gross Unrealized Gains and (Losses) Aggregated by Investment Category	The following table shows the gross unrealized gains and (losses) aggregated by investment category for available-for-sale investments: As of December 31, 2021: Cost Gross Unrealized Gains Gross Unrealized (Losses) Estimated Fair Value Short-term investments: Available-for-sale investments: Time deposits and certificates of deposit $ 22.0 $ — $ — $ 22.0 Bankers' acceptance drafts 0.5 — — 0.5 Commercial paper 41.8 — — 41.8 U.S. treasury obligations 11.5 — — 11.5 U.S. agency obligations 0.6 — — 0.6 $ 76.4 $ — $ — $ 76.4 As of December 31, 2021: Cost Gross Unrealized Gains Gross Unrealized (Losses) Estimated Fair Value Long-term investments: Available-for-sale investments: Group insurance contracts $ 5.3 $ 0.9 $ — $ 6.2 As of December 31, 2020: Cost Gross Unrealized Gains Gross Unrealized (Losses) Estimated Fair Value Short-term investments: Available-for-sale investments: Time deposits and certificates of deposit $ 0.7 $ — $ — $ 0.7 Bankers' acceptance drafts 3.8 — — 3.8 U.S. treasury obligations 223.2 — — 223.2 $ 227.7 $ — $ — $ 227.7 As of December 31, 2020: Cost Gross Unrealized Gains Gross Unrealized (Losses) Estimated Fair Value Long-term investments: Available-for-sale investments: Group insurance contracts $ 5.6 $ 0.9 $ — $ 6.5

Fair Value Measurements (Tables

Fair Value Measurements (Tables)	12 Months Ended
	Dec. 31, 2021
Fair Value Disclosures [Abstract]
Schedule of Fair Value of Assets and Liabilities Measured on Recurring Basis	Assets and liabilities of the Company measured at fair value on a recurring basis as of December 31, 2021, are summarized as follows: Fair Value Measurements at Reporting Date Using Description December 31, 2021 Quoted Prices in Active Markets for Identical Assets (Level 1) Significant Other Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3) Assets: Cash equivalents: Money market funds $ 55.4 $ 55.4 $ — $ — Commercial paper 0.1 — 0.1 — U.S. treasury obligations 175.0 — 175.0 — Available-for-sale securities: Time deposits and certificates of deposit 22.0 — 22.0 — Bankers' acceptance drafts 0.5 — 0.5 — Commercial paper 41.8 — 41.8 — U.S. treasury obligations 11.5 — 11.5 — U.S. agency obligations 0.6 — 0.6 — Group insurance contracts 6.2 — 6.2 — Derivatives-foreign exchange forward contracts 3.5 — 3.5 — Derivatives-foreign currency options 3.4 — 3.4 — Derivatives-interest rate hedge-non-current 8.7 — 8.7 — Funds in investments and other assets: Israeli pension assets 20.3 — 20.3 — Deferred compensation plan assets: Mutual funds and exchange traded funds 1.6 — 1.6 — Total assets $ 350.6 $ 55.4 $ 295.2 $ — Liabilities: Derivatives – forward exchange contracts $ 0.6 $ — $ 0.6 $ — Derivatives – interest rate hedge – non-current 5.0 — 5.0 — Total liabilities $ 5.6 $ — $ 5.6 $ — Reported as follows: Assets: Cash and cash equivalents $ 230.5 $ 55.4 $ 175.1 $ — Short-term investments 76.4 — 76.4 — Other current assets 6.9 — 6.9 — Total current assets $ 313.8 $ 55.4 $ 258.4 $ — Long-term investments $ 6.2 $ — $ 6.2 $ — Other assets 30.6 — 30.6 — Total long-term assets $ 36.8 $ — $ 36.8 $ — Liabilities: Other current liabilities $ 0.6 $ — $ 0.6 $ — Other liabilities $ 5.0 $ — $ 5.0 $ — Assets and liabilities of the Company measured at fair value on a recurring basis as of December 31, 2020, are summarized as follows: Fair Value Measurements at Reporting Date Using Description December 31, 2020 Quoted Prices in Active Markets for Identical Assets (Level 1) Significant Other Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3) Assets: Cash equivalents: Money market funds $ 1.3 $ 1.3 $ — $ — Commercial paper 0.3 — 0.3 — U.S. treasury obligations 62.1 — 62.1 — Available-for-sale securities: Time deposits and certificates of deposit 0.7 — 0.7 — Bankers' acceptance drafts 3.8 — 3.8 — U.S. treasury obligations 223.2 — 223.2 — Group insurance contracts 6.5 — 6.5 — Funds in investments and other assets: Israeli pension assets 18.8 — 18.8 — Deferred compensation plan assets: Mutual funds and exchange traded funds 1.7 — 1.7 — Total assets $ 318.4 $ 1.3 $ 317.1 $ — Liabilities: Derivatives – forward exchange contracts $ 6.5 $ — $ 6.5 $ — Derivatives – interest rate hedge – non-current 14.0 — 14.0 — Total liabilities $ 20.5 $ — $ 20.5 $ — Reported as follows: Assets: Cash and cash equivalents $ 63.7 $ 1.3 $ 62.4 $ — Short-term investments 227.7 — 227.7 — Total current assets $ 291.4 $ 1.3 $ 290.1 $ — Long-term investments $ 6.5 $ — $ 6.5 $ — Other assets 20.5 — 20.5 — Total long-term assets $ 27.0 $ — $ 27.0 $ — Liabilities: Other current liabilities $ 6.5 $ — $ 6.5 $ — Other liabilities $ 14.0 $ — $ 14.0 $ —

Derivatives (Tables)

Derivatives (Tables)	12 Months Ended
	Dec. 31, 2021
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 December 31, 2021 and 2020: December 31, 2021 Currency Hedged (Buy/Sell) Gross Notional Value Fair Value (1) U.S. dollar/Japanese yen $ 60.2 $ 1.7 U.S. dollar/South Korean won 107.7 1.1 U.S. dollar/Euro 15.1 0.3 U.S. dollar/U.K. pound sterling 10.7 — U.S. dollar/Taiwan dollar 46.7 (0.1 ) Total $ 240.4 $ 3.0 December 31, 2020 Currency Hedged (Buy/Sell) Gross Notional Value Fair Value (1) U.S. dollar/Japanese yen $ 61.5 $ (1.1 ) U.S. dollar/South Korean won 62.2 (3.1 ) U.S. dollar/Euro 13.1 (0.6 ) U.S. dollar/U.K. pound sterling 6.1 (0.3 ) U.S. dollar/Taiwan dollar 33.3 (1.4 ) Total $ 176.2 $ (6.5 ) (1) Represents the (payable) receivable amount included in the consolidated balance sheet.
Summary of Various Interest Rate Hedges	The table below summarizes the various interest rate hedges entered into by the Company: Years Ended December 31, 2021 2020 Swap Trade Date Effective Date Maturity Fixed Rate Notional Amount at Effective Date Notional Amount Fair Value Asset (Liability) Fair Value (Liability) 1 April 3, 2019 April 5, 2019 March 31, 2023 2.309 % $ 300.0 $ 300.0 $ (5.0 ) $ (12.4 ) 2 October 29, 2020 October 26, 2021 February 28, 2025 0.485 % $ 200.0 $ 200.0 3.9 (0.7 ) 3 October 29, 2020 March 31, 2022 February 28, 2025 0.623 % $ 100.0 $ 100.0 4.8 (0.9 ) Total $ 3.7 $ (14.0 )
Summary of Foreign Currency Option Contracts Purchased to Hedge Conversion	The Company purchased foreign currency option contracts to fix the conversion of EUR 300.0 into USD as noted below: Trade Date Effective Date Maturity Fixed Rate Notional Amount in EUR Notional Amount in USD Year Ended December 31, 2021 Fair Value Asset October 26, 2021 October 26, 2021 January 31, 2022 $ 1.1615 $ 300.0 $ 348.3 $ 3.0
Summary of Gain (Loss) on Derivatives Designated as Cash Flow Hedging Instruments	The following table provides a summary of the gain (loss) on derivatives designated as cash flow hedging instruments: Derivatives Designated as Cash Flow Hedging Instruments Years Ended December 31, Forward exchange contracts: 2021 2020 2019 Net gain (loss) recognized in OCI, net of tax (1) $ 20.0 $ (10.6 ) $ (10.0 ) Net (loss) gain reclassified from OCI into income (2) $ (1.5 ) $ 1.7 $ 5.7 (1) Net change in the fair value of the effective portion classified in OCI. (2) Effective portion classified in cost of products. The tax effect of the gains or losses reclassified from accumulated OCI into income is immaterial.
Summary of Gain (Loss) on Derivatives Not Designated as Cash Flow Hedging Instruments	The following table provides a summary of gain (loss) on derivatives not designated as cash flow hedging instruments: Derivatives Not Designated as Cash Flow Hedging Instruments Years Ended December 31, Forward exchange contracts: 2021 2020 2019 Net gain (loss) recognized in income (1) $ 4.8 $ (1.5 ) $ (1.3 ) (1) The Company enters into foreign exchange forward contracts to hedge against changes in the balance sheet for certain subsidiaries to mitigate the risk associated with certain foreign currency transactions in the ordinary course of business. These derivatives are not designated as cash flow hedging instruments and gains or losses from these derivatives are recorded immediately in other expense, net.

Inventories (Tables)

Inventories (Tables)	12 Months Ended
	Dec. 31, 2021
Inventory Disclosure [Abstract]
Summary of Inventories	Inventories consist of the following: Years Ended December 31, 2021 2020 Raw material $ 393.8 $ 321.3 Work-in-process 82.5 76.7 Finished goods 100.4 103.4 Total $ 576.7 $ 501.4

Property, Plant and Equipment (

Property, Plant and Equipment (Tables)	12 Months Ended
	Dec. 31, 2021
Property Plant And Equipment [Abstract]
Summary of Property, Plant and Equipment	Property, plant and equipment consist of the following: Years Ended December 31, 2021 2020 Land $ 11.9 $ 12.3 Buildings and building improvements 132.8 120.2 Machinery and equipment 428.1 397.8 Furniture and fixtures, office equipment and software 186.7 187.1 Leasehold improvements 151.7 95.4 Construction in progress 27.2 70.6 938.4 883.4 Less: accumulated depreciation 613.1 599.1 Total $ 325.3 $ 284.3

Leases (Tables)

Leases (Tables)	12 Months Ended
	Dec. 31, 2021
Leases [Abstract]
Schedule of Elements of Lease Payments	The elements of lease expense were as follows: Years Ended December 31, 2021 2020 Lease cost: Operating lease (1) $ 27.6 $ 29.2 Short-term lease 4.5 4.9 Total lease cost $ 32.1 $ 34.1 (1) Operating lease cost includes an immaterial amount of variable expenses, offset by certain sublease rental income.
Future Lease Payment Under Non-Cancelable Lease	Future lease payments under non-cancelable leases as of December 31, 2021 are detailed as follows: Year Ending December 31, Operating Leases 2022 $ 24.0 2023 22.6 2024 21.0 2025 18.8 2026 16.7 Thereafter 158.1 Total lease payments 261.2 Less: imputed interest 50.6 Total lease liabilities $ 210.6

Goodwill and Intangible Assets

Goodwill and Intangible Assets (Tables)	12 Months Ended
	Dec. 31, 2021
Goodwill And Intangible Assets Disclosure [Abstract]
Goodwill	The changes in the carrying amount of goodwill and accumulated impairment losses were as follows: 2021 2020 Gross Carrying Amount Accumulated Impairment Loss Net Gross Carrying Amount Accumulated Impairment Loss Net Beginning balance at January 1 $ 1,211.8 $ (145.4 ) $ 1,066.4 $ 1,202.8 $ (144.3 ) $ 1,058.5 Acquired goodwill (1) 168.0 — 168.0 — — — Impairment of goodwill (2) — — — — (1.1 ) (1.1 ) Foreign currency translation (6.2 ) — (6.2 ) 9.0 — 9.0 Ending balance at December 31 $ 1,373.6 $ (145.4 ) $ 1,228.2 $ 1,211.8 $ (145.4 ) $ 1,066.4 (1 ) During the year ended December 31, 2021, the Company recorded goodwill related to the Photon Control Acquisition. (2)
Acquired Intangible Assets	Intangible Assets The Company’s acquired intangible assets are comprised of the following: As of December 31, 2021 Gross Accumulated Impairment Charges Accumulated Amortization Foreign Currency Translation Net Completed technology (1) $ 556.4 $ (0.1 ) $ (241.7 ) $ (0.2 ) $ 314.4 Customer relationships (1) 317.6 (1.4 ) (124.2 ) (0.2 ) 191.8 Patents, trademarks, trade names and other (1) 122.7 — (52.5 ) (0.4 ) 69.8 $ 996.7 $ (1.5 ) $ (418.4 ) $ (0.8 ) $ 576.0 (1 ) As of December 31, 2020 Gross Accumulated Impairment Charges Accumulated Amortization Foreign Currency Translation Net Completed technology $ 446.4 $ (0.1 ) $ (209.8 ) $ (0.1 ) $ 236.4 Customer relationships 308.2 (1.4 ) (104.8 ) 1.7 203.7 Patents, trademarks, trade names and other 120.9 — (48.6 ) (0.2 ) 72.1 $ 875.5 $ (1.5 ) $ (363.2 ) $ 1.4 $ 512.2
Estimated Net Amortization Expense	Aggregate net amortization expense related to acquired intangible assets for future years is: Year Amount 2022 $ 59.6 2023 58.2 2024 57.3 2025 56.3 2026 52.7 Thereafter 236.0

Product Warranties (Tables)

Product Warranties (Tables)	12 Months Ended
	Dec. 31, 2021
Guarantees And Product Warranties [Abstract]
Product Warranty Activities	Product warranty activities were as follows: Years Ended December 31, 2021 2020 Beginning balance $ 18.4 $ 14.9 Provision for product warranties 38.1 28.3 Assumed product warranty liability from Photon Control Acquisition 0.6 — Direct and other charges to warranty liability (36.0 ) (24.8 ) Ending balance (1) $ 21.1 $ 18.4 (1) Short-term product warranties of $19.7 and long-term product warranties of $1.4, each as of December 31, 2021, are included within other current liabilities and other non-current liabilities, respectively, within the accompanying consolidated balance sheet. Short-term product warranties of $15.6 and long-term product warranties of $2.8, each as of December 31, 2020, are included within other current liabilities and other non-current liabilities, respectively, within the accompanying consolidated balance sheet.

Debt (Tables)

Debt (Tables)	12 Months Ended
	Dec. 31, 2021
Debt Disclosure [Abstract]
Schedule of Short-Term Debt	The Company’s outstanding debt is as follows: December 31, 2021 December 31, 2020 Short-term debt: Term Loan Facility $ 9.0 $ 9.0 Japanese lines of credit and financing facility — 5.5 $ 9.0 $ 14.5
Schedule of Long-Term Debt	December 31, 2021 December 31, 2020 Long-term debt: Term Loan Facility, net (1) $ 807.9 $ 815.0 (1) Net of remaining deferred financing fees, original issuance discount and repricing fees in the aggregate of $7.5 and $9.4 as of December 31, 2021 and December 31, 2020, respectively.
Schedule of Contractual Maturities of Debt Obligations	Contractual maturities of the Company’s debt obligations as of December 31, 2021 are as follows: Year Amount 2022 $ 9.0 2023 9.0 2024 9.0 2025 9.0 2026 788.4

Income Taxes (Tables)

Income Taxes (Tables)	12 Months Ended
	Dec. 31, 2021
Income Tax Disclosure [Abstract]
Reconciliation of Company's Effective Tax Rate to U.S. Federal Statutory Rate	A reconciliation of the Years Ended December 31, 2021 2020 2019 U.S. federal income tax statutory rate 21.0 % 21.0 % 21.0 % Federal tax credits (0.7 ) (1.5 ) (2.9 ) State income taxes, net of federal benefit 1.5 1.1 2.3 Effect of foreign operations taxed at various rates (4.5 ) (5.0 ) (4.4 ) Executive compensation 0.9 1.1 5.8 Gain on intercompany sale of assets — — 2.9 Utilization of a capital loss — — (1.2 ) Foreign derived intangible income deduction (1.7 ) (1.5 ) (3.8 ) Global intangible low taxed income, net of foreign tax credits 0.5 0.9 2.6 Revaluation of deferred income taxes — — (1.4 ) Stock-based compensation (0.5 ) (0.7 ) (0.3 ) Deferred tax asset valuation allowance (0.8 ) 0.6 0.1 Release of income tax reserves (including interest) (0.6 ) — (0.8 ) Withholding taxes on foreign dividends, net of foreign tax credits 1.5 0.7 0.6 Other 0.4 0.5 0.6 17.1 % 17.2 % 21.1 %
Components of Income from Operations Before Income Taxes and Related Provision for Income Taxes	The components of income from operations before income taxes and the related provision for income taxes consist of the following: Years Ended December 31, 2021 2020 2019 Income before income taxes: United States $ 249.0 $ 132.0 $ 2.3 Foreign 416.5 291.0 175.5 $ 665.5 $ 423.0 $ 177.8 Current taxes: United States $ 37.8 $ 29.2 $ 6.8 State 10.3 6.1 2.0 Foreign 64.8 44.7 32.8 112.9 80.0 41.6 Deferred taxes: United States 4.9 (7.9 ) (1.7 ) State and Foreign (3.7 ) 0.8 (2.5 ) 1.2 (7.1 ) (4.2 ) Provision for income taxes $ 114.1 $ 72.9 $ 37.4
Significant Components of Deferred Tax Assets and Deferred Tax Liabilities	The significant components of the deferred tax assets and deferred tax liabilities are as follows: December 31, 2021 2020 Deferred tax assets: Carryforward losses and credits $ 48.8 $ 54.2 Inventory and warranty reserves 37.3 32.4 Accrued expenses and other reserves 15.8 14.5 Stock-based compensation 3.5 5.1 Executive supplemental retirement benefits 1.5 1.8 Lease liability 44.7 48.7 Unrealized net loss — 4.0 Other 1.0 2.7 Total deferred tax assets $ 152.6 $ 163.4 Deferred tax liabilities: Acquired intangible assets and goodwill $ (136.5 ) $ (116.2 ) Depreciation and amortization (23.3 ) (14.5 ) Loan costs (2.0 ) (1.8 ) Right-of-use asset (41.0 ) (46.4 ) Foreign withholding taxes (6.1 ) (3.2 ) Unrealized gain (1.6 ) — Total deferred tax liabilities (210.5 ) (182.1 ) Valuation allowance (26.2 ) (30.6 ) Net deferred tax liabilities $ (84.1 ) $ (49.3 )
Reconciliation of Beginning and Ending Amount of Gross Unrecognized Tax Benefits	A reconciliation of the beginning and ending amount of gross unrecognized tax benefits is as follows: Years Ended December 31, 2021 2020 2019 Balance at beginning of year $ 47.0 $ 43.5 $ 32.7 (Decreases) increases for prior years (0.6 ) 1.1 9.3 Increases for the current year 2.3 6.8 3.2 Reductions related to expiration of statutes of limitations and audit settlements (5.6 ) (4.4 ) (1.7 ) Balance at end of year $ 43.1 $ 47.0 $ 43.5

Stock-Based Compensation (Table

Stock-Based Compensation (Tables)	12 Months Ended
	Dec. 31, 2021
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]
Summary of Activity for RSUs	The following tables present the activity for RSUs under the 2014 Plan: Year Ended December 31, 2021 RSUs Weighted Average Grant Date Fair Value RSUs — beginning of period 0.6 $ 93.26 Granted 0.2 $ 177.71 Vested (0.3 ) $ 95.95 RSUs — end of period 0.5 $ 127.93 Year Ended December 31, 2020 RSUs Weighted Average Grant Date Fair Value RSUs — beginning of period 1.1 $ 85.93 Granted 0.3 $ 98.72 Vested (0.8 ) $ 85.32 RSUs — end of period 0.6 $ 93.26
Effect of Recording Stock-Based Compensation	The following table reflects the effect of recording stock-based compensation: Years Ended December 31, 2021 2020 2019 Stock-based compensation expense by type of award: RSUs $ 33.8 $ 27.0 $ 47.1 Employee stock purchase plan 2.9 2.5 2.1 Total stock-based compensation 36.7 29.5 49.2 Windfall tax effect on stock-based compensation (4.6 ) (2.4 ) (2.2 ) Net effect on net income $ 32.1 $ 27.1 $ 47.0 Effect on net earnings per share: Basic $ 0.58 $ 0.49 $ 0.86 Diluted $ 0.58 $ 0.49 $ 0.85
Pre-Tax Effect Within Consolidated Statements of Operations of Recording Stock-Based Compensation	The pre-tax effect within the consolidated statements of operations and comprehensive income of recording stock-based compensation was as follows: Years Ended December 31, 2021 2020 2019 Cost of revenues $ 3.8 $ 4.2 $ 2.8 Research and development expense 4.5 4.0 3.8 Selling, general and administrative expense 28.4 20.4 20.5 Acquisition and integration related expense — 0.9 21.7 Restructuring related expense — — 0.4 Total pre-tax stock-based compensation expense $ 36.7 $ 29.5 $ 49.2
Fair Value of Employee Purchase Rights Estimated using Black-Scholes Option-Pricing Model	The fair value of employee stock purchase plan rights was estimated using the Black-Scholes option-pricing model with the following weighted average assumptions: Years Ended December 31, Employee stock purchase plan rights: 2021 2020 2019 Expected life (years) 0.5 0.5 0.5 Risk-free interest rate 0.1 % 0.9 % 2.4 % Expected volatility 39.3 % 45.4 % 38.7 % Expected annual dividends per share $ 0.88 $ 0.80 $ 0.80

Employee Benefit Plans (Tables)

Employee Benefit Plans (Tables)	12 Months Ended
	Dec. 31, 2021
Postemployment Benefits [Abstract]
Summary of Net Periodic Benefit Costs	The net periodic benefit costs for the plans included the following components: Year Ended December 31, 2021 2020 Service cost $ 1.1 $ 1.0 Interest cost on projected benefit obligations 0.2 0.4 Expected return on plan assets (0.1 ) (0.1 ) Amortization of actuarial net loss 0.7 0.5 $ 1.9 $ 1.8
Summary of Changes in Projected Benefit Obligations and Plan Assets, and Ending Balances of Defined Benefit Plans	The changes in projected benefit obligations and plan assets, as well as the ending balance sheet amounts for the Company’s defined benefit plans, were as follows: Year Ended December 31, 2021 2020 Change in projected benefit obligations: Projected benefit obligations, beginning of year $ 36.2 $ 30.1 Service cost 1.1 1.0 Interest cost 0.2 0.4 Contributions by plan participants — 0.7 Plan amendments — (0.2 ) Actuarial loss 0.1 3.0 Benefits paid (1.4 ) (1.2 ) Currency translation adjustments (2.2 ) 2.4 Projected benefit obligations, end of year $ 34.0 $ 36.2 Change in plan assets: Fair value of plan assets, beginning of year $ 12.9 $ 11.1 Company contributions 0.7 1.1 (Loss) gain on plan assets (0.1 ) 0.6 Benefits paid (0.6 ) (0.5 ) Currency translation adjustments (0.6 ) 0.6 Fair value of plan assets, end of year 12.3 12.9 Net underfunded status $ (21.7 ) $ (23.3 )
Summary of Estimated Benefit Payments for Defined Benefit Plans for Next 10 Years	As of December 31, 2021, the estimated benefit payments for the Company’s defined benefit plans for the next 10 years were as follows: Estimated benefit payments 2022 $ 1.1 2023 1.1 2024 1.2 2025 1.6 2026 1.4 2027-2031 8.6 $ 15.0
Schedule of Weighted Average Rates Used to Determine Net Periodic Benefit Costs	The weighted-average rates used to determine the net periodic benefit costs were as follows: December 31, 2021 December 31, 2020 Discount rate 1.0 % 1.1 % Rate of increase in salary levels 2.0 % 2.2 % Expected long-term rate of return on assets 1.1 % 1.2 %
Schedule of Defined Benefit Plan Assets	Plan assets were held in the following categories as a percentage of total plan assets: December 31, 2021 December 31, 2020 Amount Percentage Amount Percentage Cash $ 0.2 1.6 % $ 0.2 1.3 % Debt securities 5.1 41.5 5.2 40.5 Equity securities 0.6 4.8 0.7 5.6 Other 6.4 52.1 6.8 52.6 $ 12.3 100 % $ 12.9 100 %

Net Income Per Share (Tables)

Net Income Per Share (Tables)	12 Months Ended
	Dec. 31, 2021
Earnings Per Share [Abstract]
Computation of Basic and Diluted Net Income Per Share	The following is a reconciliation of basic to diluted net income per share: Years Ended December 31, Numerator: 2021 2020 2019 Net income $ 551.4 $ 350.1 $ 140.4 Denominator: Shares used in net income per common share – basic 55.4 55.1 54.7 Effect of dilutive securities 0.3 0.2 0.4 Shares used in net income per common share – diluted 55.7 55.3 55.1 Net income per common share: Basic $ 9.95 $ 6.36 $ 2.57 Diluted $ 9.90 $ 6.33 $ 2.55

Business Segment, Geographic _2

Business Segment, Geographic Area, Product Information and Significant Customer Information (Tables)	12 Months Ended
	Dec. 31, 2021
Segment Reporting [Abstract]
Net Revenues, Assets and Goodwill by Reportable Segment	The following table sets forth net revenues by reportable segment: Years Ended December 31, 2021 2020 2019 Vacuum & Analysis $ 1,861.5 $ 1,405.9 $ 990.5 Light & Motion 813.4 689.6 725.6 Equipment & Solutions 274.7 234.5 183.7 $ 2,949.6 $ 2,330.0 $ 1,899.8 The following table sets forth segment assets by reportable segment: Accounts Receivable Inventory Total December 31, 2021 Vacuum & Analysis $ 285.4 $ 338.9 $ 624.3 Light & Motion 146.2 177.3 323.5 Equipment & Solutions 36.3 61.5 97.8 Corporate, Eliminations & Other (25.3 ) (1.0 ) (26.3 ) Total segment assets $ 442.6 $ 576.7 $ 1,019.3 Accounts Receivable Inventory Total December 31, 2020 Vacuum & Analysis $ 229.1 $ 273.3 $ 502.4 Light & Motion 122.6 166.1 288.7 Equipment & Solutions 51.7 63.7 115.4 Corporate, Eliminations & Other (10.7 ) (1.7 ) (12.4 ) Total segment assets $ 392.7 $ 501.4 $ 894.1 Goodwill associated with each of the Company’s reportable segments is as follows: December 31, 2021 2020 Vacuum & Analysis $ 195.2 $ 196.2 Light & Motion 558.1 395.3 Equipment & Solutions 474.9 474.9 Total goodwill $ 1,228.2 $ 1,066.4
Reconciliation of Segment Gross Profit to Consolidated Net Income	The following table sets forth a reconciliation of segment gross profit to consolidated net income: Years Ended December 31, 2021 2020 2019 Gross profit by reportable segment: Vacuum & Analysis $ 867.8 $ 633.7 $ 426.4 Light & Motion 384.8 309.8 336.8 Equipment & Solutions 127.6 106.0 67.2 Total gross profit by reportable segment 1,380.2 1,049.5 830.4 Operating expenses: Research and development 200.0 173.1 164.1 Selling, general and administrative 385.1 353.1 330.3 Acquisition and integration costs 29.8 3.8 37.3 Restructuring and other 11.1 9.4 7.0 Amortization of intangible assets 55.3 55.2 67.4 Asset impairment — 2.3 4.7 COVID-19 related net credits — (1.2 ) — Fees and expenses related to repricing of Term Loan Facility — — 6.6 Gain on sale of long-lived assets — — (6.8 ) Income from operations 698.9 453.8 219.8 Interest income 0.6 1.4 5.4 Interest expense 25.4 29.1 44.1 Other expense, net 8.6 3.1 3.3 Income before income taxes 665.5 423.0 177.8 Provision for income taxes 114.1 72.9 37.4 Net income $ 551.4 $ 350.1 $ 140.4
Schedule of Capital Expenditures, Depreciation and Amortization Expense of Intangible Assets by Reportable Segment	The following table set forth capital expenditures by reportable segment: Years Ended December 31, 2021 2020 2019 Vacuum & Analysis $ 36.6 $ 36.0 $ 34.1 Light & Motion 37.1 32.1 23.0 Equipment & Solutions 13.0 16.8 6.8 Total capital expenditures $ 86.7 $ 84.9 $ 63.9 The following table sets forth depreciation and amortization by reportable segment: Years Ended December 31, 2021 2020 2019 Vacuum & Analysis $ 22.9 $ 20.3 $ 16.8 Light & Motion 46.0 43.2 53.9 Equipment & Solutions 35.2 35.7 39.3 Total depreciation and amortization $ 104.1 $ 99.2 $ 110.0
Reconciliation of Segment Assets to Consolidated Total Assets	The following is a reconciliation of segment assets to consolidated total assets: December 31, 2021 2020 Total segment assets $ 1,019.3 $ 894.1 Cash and cash equivalents and short-term investments 1,042.7 836.0 Other current assets 85.3 74.3 Property, plant and equipment, net 325.3 284.3 Right-of-use assets 184.3 184.4 Goodwill and intangible assets, net 1,804.2 1,578.6 Other assets and long-term assets 79.2 52.1 Consolidated total assets $ 4,540.3 $ 3,903.8
Schedule of Net Revenues and Long-Lived Assets by Geographic Regions	Intercompany sales between geographic areas are at tax transfer prices and have been eliminated from consolidated net revenues. Years Ended December 31, 2021 2020 2019 Net revenues: North America (1) $ 1,271.8 $ 1,058.9 $ 888.4 South Korea 385.8 278.8 167.7 China 355.1 273.5 178.6 Taiwan 197.7 113.8 95.4 Japan 196.8 163.2 143.1 Other Asia 310.4 242.6 197.3 Europe 232.0 199.2 229.3 $ 2,949.6 $ 2,330.0 $ 1,899.8 (1 ) North America includes the United States and an immaterial amount from Canada. December 31, 2021 2020 Long-lived assets: (1) North America (2) $ 425.2 $ 364.0 Asia 105.7 94.8 Europe 35.6 45.1 $ 566.5 $ 503.9 (1 ) Long-lived assets include property, plant and equipment, net, right-of-use assets, and certain other assets, and exclude goodwill, intangible assets and long-term tax-related accounts. The increase in long-lived assets in North America for 2021 primarily relates to the Photon Control Acquisition. ( 2 ) North America includes the United States and an immaterial amount from Canada.

Business Segment, Geographic _3

Business Segment, Geographic Area, Product/Service Offerings and Significant Customer Information (Tables)	12 Months Ended
	Dec. 31, 2021
Segment Reporting [Abstract]
Summary of Net Revenues by Major Customers	The Company had two customers with net revenues greater than 10% of total net revenues for the years ended December 31, 2021 and 2020, as shown below. No individual customers accounted for greater than 10% of the Company’s net revenues in 2019. Years Ended December 31, 2021 2020 2019 Lam Research Corporation 16% 14% 9% Applied Materials, Inc. 11% 11% 9%

Restructuring and Other (Tables

Restructuring and Other (Tables)	12 Months Ended
	Dec. 31, 2021
Expense Of Restructuring Activities And Other [Abstract]
Schedule of Company's Restructuring Activity	The activity related to the Company’s restructuring accrual is shown below: 2021 2020 Balance at January 1 $ 0.3 $ 3.7 Charged to expense 7.0 2.7 Payments and adjustments (4.7 ) (6.1 ) Balance at December 31 $ 2.6 $ 0.3

Summary of Significant Accoun_3

Summary of Significant Accounting Policies - Additional Information (Detail) $ in Millions	12 Months Ended
	Dec. 31, 2021USD ($)Customer	Dec. 31, 2020USD ($)Customer	Dec. 31, 2019USD ($)
Schedule Of Significant Accounting Policies [Line Items]
Minimum period of company's research and development projects	3 months
Maximum period of company's research and development projects	30 months
Vesting period	3 years
Number of customers accounted for approximately 18% of total accounts receivable | Customer	1	1
Amortization period of leasehold improvements	shorter of the lease term or the estimated useful life of the leased asset.
Minimum percentage of recognition of tax benefits from uncertain tax positions	50.00%
Other Expense [Member]
Schedule Of Significant Accounting Policies [Line Items]
Net foreign exchange losses from re-measurement | $	$ 8.7	$ 3.5	$ 3.6
Customer Concentration Risk [Member] | Semiconductor Products [Member] | Sales Revenue, Net [Member]
Schedule Of Significant Accounting Policies [Line Items]
Concentration risk, percentage	62.00%	59.00%	49.00%
Customer Concentration Risk [Member] | One Customer [Member] | Accounts Receivable [Member]
Schedule Of Significant Accounting Policies [Line Items]
Concentration risk, percentage	18.00%	18.00%
Minimum [Member]
Schedule Of Significant Accounting Policies [Line Items]
Intangible assets amortized period	1 year
Minimum [Member] | Building [Member]
Schedule Of Significant Accounting Policies [Line Items]
Estimated useful lives	10 years
Minimum [Member] | Machinery and Equipment [Member]
Schedule Of Significant Accounting Policies [Line Items]
Estimated useful lives	3 years
Minimum [Member] | Furniture and Fixtures [Member]
Schedule Of Significant Accounting Policies [Line Items]
Estimated useful lives	3 years
Minimum [Member] | Office Equipment [Member]
Schedule Of Significant Accounting Policies [Line Items]
Estimated useful lives	3 years
Minimum [Member] | Customer Concentration Risk [Member] | Semiconductor Products [Member] | Sales Revenue, Net [Member]
Schedule Of Significant Accounting Policies [Line Items]
Concentration risk, percentage	90.00%	90.00%	90.00%
Minimum [Member] | Accounting Standards Codification Topic 606 adjustment [Member]
Schedule Of Significant Accounting Policies [Line Items]
Company's normal payment terms	30 days
Warranty period	12 months
Term of separately priced contracts	12 months
Maximum [Member]
Schedule Of Significant Accounting Policies [Line Items]
Intangible assets amortized period	18 years
Maximum [Member] | Building [Member]
Schedule Of Significant Accounting Policies [Line Items]
Estimated useful lives	50 years
Maximum [Member] | Machinery and Equipment [Member]
Schedule Of Significant Accounting Policies [Line Items]
Estimated useful lives	18 years
Maximum [Member] | Furniture and Fixtures [Member]
Schedule Of Significant Accounting Policies [Line Items]
Estimated useful lives	18 years
Maximum [Member] | Office Equipment [Member]
Schedule Of Significant Accounting Policies [Line Items]
Estimated useful lives	18 years
Maximum [Member] | Accounting Standards Codification Topic 606 adjustment [Member]
Schedule Of Significant Accounting Policies [Line Items]
Company's normal payment terms	60 days
Warranty period	24 months
Term of separately priced contracts	60 months
Remaining performance obligation period	1 year	1 year

Acquisition - Additional Inform

Acquisition - Additional Information (Detail) $ / shares in Units, $ / shares in Units, $ in Thousands, $ in Millions	Jul. 15, 2021CAD ($)$ / shares	Dec. 31, 2021USD ($)	Dec. 31, 2020USD ($)	Dec. 31, 2019USD ($)	Feb. 01, 2019$ / shares
Business Acquisition [Line Items]
Stock-based compensation expense		$ 36.7	$ 29.5	$ 49.2
Photon Control Inc [Member]
Business Acquisition [Line Items]
Date of completed previously announced acquisition	Jul. 15, 2021
Price per share of common stock in cash	$ 3,600
Price per share of common stock | $ / shares	$ 3.60
Electro Scientific Industries Inc [Member]
Business Acquisition [Line Items]
Price per share of common stock | $ / shares					$ 30
Fair value write-up of acquired finished goods inventory		7.6
Incremental costs of sales charge				7.6
Fair value excluding write-up of acquired property, plant and equipment		$ 39.2
Compensation expense				2.7
Stock-based compensation expense				$ 14

Acquisition - Summary of Purcha

Acquisition - Summary of Purchase Price (Detail) - USD ($) $ in Millions	Jul. 15, 2021	Feb. 01, 2019	Dec. 31, 2021	Dec. 31, 2019
Business Acquisition [Line Items]
Total purchase price, net of cash and cash equivalents acquired			$ 268.4	$ 988.6
Photon Control Inc [Member]
Business Acquisition [Line Items]
Cash paid for outstanding shares	$ 302.7
Less: Cash and cash equivalents acquired	(34.3)
Total purchase price, net of cash and cash equivalents acquired	$ 268.4
Electro Scientific Industries Inc [Member]
Business Acquisition [Line Items]
Cash paid for outstanding shares		$ 1,032.7
Settlement of share-based compensation awards		30.6
Total purchase price		1,063.3
Less: Cash and cash equivalents acquired		(44.1)
Total purchase price, net of cash and cash equivalents acquired		$ 1,019.2

Acquisition - Summary of Purc_2

Acquisition - Summary of Purchase Price (Parenthetical) (Detail) shares in Millions	Jul. 15, 2021$ / sharesshares	Feb. 01, 2019$ / sharesshares
Photon Control Inc [Member]
Business Acquisition [Line Items]
Price per share of common stock | $ / shares	$ 3.60
Number of shares received per common shares | shares	105.2
Electro Scientific Industries Inc [Member]
Business Acquisition [Line Items]
Price per share of common stock | $ / shares		$ 30
Number of shares received per common shares | shares		34.4

Acquisition - Summary of Estima

Acquisition - Summary of Estimated Fair Value of Assets Acquired and Liabilities Assumed (Detail) - USD ($) $ in Millions	Jul. 15, 2021	Feb. 01, 2019	Dec. 31, 2021	Dec. 31, 2019	Dec. 31, 2020
Acquisition Date [Line Items]
Goodwill			$ 1,228.2	$ 1,058.5	$ 1,066.4
Total purchase price, net of cash and cash equivalents acquired			$ 268.4	$ 988.6
Photon Control Inc [Member]
Acquisition Date [Line Items]
Current assets	$ 51.4
Intangible assets	121.2
Goodwill	168
Other non-current assets	8.6
Total assets acquired	349.2
Current liabilities	13.7
Non-current deferred taxes	32.1
Other long-term liabilities	0.7
Total liabilities assumed	46.5
Fair value of assets acquired and liabilities assumed	302.7
Less: Cash and cash equivalents acquired	(34.3)
Total purchase price, net of cash and cash equivalents acquired	$ 268.4
Electro Scientific Industries Inc [Member]
Acquisition Date [Line Items]
Current assets (excluding inventory)		$ 208
Inventory		81.7
Intangible assets		316.2
Goodwill		474
Property, plant and equipment		65.5
Other non-current assets		9.6
Total assets acquired		1,155
Current liabilities		51.5
Non-current deferred taxes		33
Other long-term liabilities		7.2
Total liabilities assumed		91.7
Fair value of assets acquired and liabilities assumed		1,063.3
Less: Cash and cash equivalents acquired		(44.1)
Total purchase price, net of cash and cash equivalents acquired		$ 1,019.2

Acquisition - Allocation of Acq

Acquisition - Allocation of Acquired Intangible Assets and Liabilities Related Estimates of Useful Lives (Detail) - USD ($) $ in Millions	Jul. 15, 2021	Feb. 01, 2019	Dec. 31, 2021
Photon Control Inc [Member]
Acquired Finite Lived Intangible Assets [Line Items]
Acquired intangible assets, purchase price	$ 121.2		$ 121.2
Photon Control Inc [Member] | Completed Technology [Member]
Acquired Finite Lived Intangible Assets [Line Items]
Acquired intangible assets, purchase price	$ 110		110
Acquired intangible assets, estimated useful lives	9 years
Photon Control Inc [Member] | Customer Relationships [Member]
Acquired Finite Lived Intangible Assets [Line Items]
Acquired intangible assets, purchase price	$ 9.4		$ 9.4
Acquired intangible assets, estimated useful lives	10 years
Photon Control Inc [Member] | Trade Names [Member]
Acquired Finite Lived Intangible Assets [Line Items]
Acquired intangible assets, purchase price	$ 0.2
Acquired intangible assets, estimated useful lives	6 months
Photon Control Inc [Member] | Backlog [Member]
Acquired Finite Lived Intangible Assets [Line Items]
Acquired intangible assets, purchase price	$ 1.6
Acquired intangible assets, estimated useful lives	1 year 6 months
Electro Scientific Industries Inc [Member]
Acquired Finite Lived Intangible Assets [Line Items]
Acquired intangible assets, purchase price		$ 316.2
Electro Scientific Industries Inc [Member] | Completed Technology [Member] | Lasers Products [Member]
Acquired Finite Lived Intangible Assets [Line Items]
Acquired intangible assets, purchase price		$ 255.7
Acquired intangible assets, estimated useful lives		12 years
Electro Scientific Industries Inc [Member] | Completed Technology [Member] | Non Laser Products [Member]
Acquired Finite Lived Intangible Assets [Line Items]
Acquired intangible assets, purchase price		$ 18.3
Acquired intangible assets, estimated useful lives		10 years
Electro Scientific Industries Inc [Member] | Customer Relationships [Member]
Acquired Finite Lived Intangible Assets [Line Items]
Acquired intangible assets, purchase price		$ 25.4
Acquired intangible assets, estimated useful lives		10 years
Electro Scientific Industries Inc [Member] | Backlog [Member]
Acquired Finite Lived Intangible Assets [Line Items]
Acquired intangible assets, purchase price		$ 2.4
Acquired intangible assets, estimated useful lives		1 year
Electro Scientific Industries Inc [Member] | Trademarks and Trade Names [Member]
Acquired Finite Lived Intangible Assets [Line Items]
Acquired intangible assets, purchase price		$ 14.4
Acquired intangible assets, estimated useful lives		7 years

Acquisition - Schedule of Conso

Acquisition - Schedule of Consolidated Net Revenue and Earnings (Detail) - Electro Scientific Industries Inc [Member] $ / shares in Units, $ in Millions	12 Months Ended
	Dec. 31, 2019USD ($)$ / shares
Acquisition Date [Line Items]
Total net revenues | $	$ 183.7
Net loss | $	$ (33.5)
Net loss per share:
Basic | $ / shares	$ (0.61)
Diluted | $ / shares	$ (0.61)

Acquisition - Schedule of Unaud

Acquisition - Schedule of Unaudited Pro Forma Financial Information (Detail) - Electro Scientific Industries Inc [Member] $ / shares in Units, $ in Millions	12 Months Ended
	Dec. 31, 2019USD ($)$ / shares
Acquisition Date [Line Items]
Total net revenues | $	$ 1,914.6
Net income | $	$ 171.5
Net income per share:
Basic | $ / shares	$ 3.14
Diluted | $ / shares	$ 3.11

Revenue from Contracts with C_3

Revenue from Contracts with Customers - Additional Information (Detail) - USD ($) $ in Millions	Dec. 31, 2021	Dec. 31, 2020
Accounting Standards Codification Topic 606 adjustment [Member]
Change in Contract with Customer, Liability [Line Items]
Contract assets	$ 4.1	$ 3.7

Revenue from Contracts with C_4

Revenue from Contracts with Customers - Schedule of Deferred Revenue and Customer Advances by Arrangement (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Change In Contract With Customer Liability [Abstract]
Beginning balance, January 1	$ 36.7	$ 24.8
Additions to deferred revenue and customer advances	172.5	107.4
Amount of deferred revenue and customer advances recognized in income	(168.9)	(95.5)
Ending balance, December 31	$ 40.3	$ 36.7

Revenue from Contracts with C_5

Revenue from Contracts with Customers - Schedule of Deferred Revenue and Customer Advances by Arrangement (Parenthetical) (Detail) - USD ($) $ in Millions	Dec. 31, 2021	Jan. 01, 2021	Dec. 31, 2020	Jan. 01, 2020
Change in Contract with Customer, Liability [Line Items]
Long-term deferred revenue	$ 2.8	$ 5.6	$ 5.6	$ 3.3
Deferred revenue and customer advances	37.5		31.2
Deferred Revenue [Member]
Change in Contract with Customer, Liability [Line Items]
Deferred revenue and customer advances	16.6	18.3	18.3	12.4
Customer Advances [Member]
Change in Contract with Customer, Liability [Line Items]
Deferred revenue and customer advances	$ 20.9	$ 12.8	$ 12.8	$ 9.1

Revenue from Contracts with C_6

Revenue from Contracts with Customers - Summary of Revenue from Contracts with Customers (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Disaggregation of Revenue [Line Items]
Net revenues	$ 2,949.6	$ 2,330	$ 1,899.8
Products [Member]
Disaggregation of Revenue [Line Items]
Net revenues	2,578.6	2,014.8	1,611.3
Services [Member]
Disaggregation of Revenue [Line Items]
Net revenues	371	315.2	288.5
Vacuum & Analysis [Member]
Disaggregation of Revenue [Line Items]
Net revenues	1,861.5	1,405.9	990.5
Vacuum & Analysis [Member] | Products [Member]
Disaggregation of Revenue [Line Items]
Net revenues	1,629	1,222.4	819.1
Vacuum & Analysis [Member] | Services [Member]
Disaggregation of Revenue [Line Items]
Net revenues	232.5	183.5	171.4
Light & Motion [Member]
Disaggregation of Revenue [Line Items]
Net revenues	813.4	689.6	725.6
Light & Motion [Member] | Products [Member]
Disaggregation of Revenue [Line Items]
Net revenues	742.5	621.9	663.7
Light & Motion [Member] | Services [Member]
Disaggregation of Revenue [Line Items]
Net revenues	70.9	67.7	61.9
Equipment & Solutions [Member]
Disaggregation of Revenue [Line Items]
Net revenues	274.7	234.5	183.7
Equipment & Solutions [Member] | Products [Member]
Disaggregation of Revenue [Line Items]
Net revenues	207.1	170.5	128.5
Equipment & Solutions [Member] | Services [Member]
Disaggregation of Revenue [Line Items]
Net revenues	$ 67.6	$ 64	$ 55.2

Investments - Gross Unrealized

Investments - Gross Unrealized Gains and (Losses) Aggregated by Investment Category (Detail) - USD ($) $ in Millions	Dec. 31, 2021	Dec. 31, 2020
Schedule of Available-for-sale Securities [Line Items]
Investments, Cost	$ 76.4	$ 227.7
Investments, Estimated Fair Value	76.4	227.7
Time Deposits and Certificates of Deposit [Member]
Schedule of Available-for-sale Securities [Line Items]
Investments, Cost	22	0.7
Investments, Estimated Fair Value	22	0.7
Bankers' Acceptance Drafts [Member]
Schedule of Available-for-sale Securities [Line Items]
Investments, Cost	0.5	3.8
Investments, Estimated Fair Value	0.5	3.8
Commercial Paper [Member]
Schedule of Available-for-sale Securities [Line Items]
Investments, Cost	41.8
Investments, Estimated Fair Value	41.8
U.S. Treasury Obligations [Member]
Schedule of Available-for-sale Securities [Line Items]
Investments, Cost	11.5	223.2
Investments, Estimated Fair Value	11.5	223.2
U.S. Agency Obligations [Member]
Schedule of Available-for-sale Securities [Line Items]
Investments, Cost	0.6
Investments, Estimated Fair Value	0.6
Group Insurance Contracts [Member] | Long Term Investments [Member]
Schedule of Available-for-sale Securities [Line Items]
Investments, Cost	5.3	5.6
Investments, Gross Unrealized Gains	0.9	0.9
Investments, Estimated Fair Value	$ 6.2	$ 6.5

Fair Value Measurements - Sched

Fair Value Measurements - Schedule of Fair Value of Assets and Liabilities Measured on Recurring Basis (Detail) - USD ($) $ in Millions	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	$ 76.4	$ 227.7
Short-term investments	76.4	227.7
Commercial Paper [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	$ 41.8
Fair Value Measurements, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash and cash equivalents		230.5	$ 63.7
Total assets		350.6	318.4
Total liabilities		5.6	20.5
Short-term investments		76.4	227.7
Other current assets		6.9
Total current assets		313.8	291.4
Long-term investments		6.2	6.5
Other assets		30.6	20.5
Total long-term assets		36.8	27
Fair Value Measurements, Recurring [Member] | Interest Rate Hedge [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivatives-interest rate hedge-non-current		8.7
Derivatives – interest rate hedge – non-current		5	14
Fair Value Measurements, Recurring [Member] | Foreign Exchange Contracts [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivatives-foreign exchange forward contracts		3.5
Derivatives – forward exchange contracts		0.6	6.5
Fair Value Measurements, Recurring [Member] | Derivatives Foreign Currency Options [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivatives-foreign currency options		3.4
Fair Value Measurements, Recurring [Member] | Commercial Paper [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash and cash equivalents		0.1	0.3
Available-for-sale securities		41.8
Fair Value Measurements, Recurring [Member] | Group Insurance Contracts [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities		6.2	6.5
Fair Value Measurements, Recurring [Member] | Israeli Pension Assets [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Pension assets		20.3	18.8
Fair Value Measurements, Recurring [Member] | Money Market Funds [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash and cash equivalents		55.4	1.3
Fair Value Measurements, Recurring [Member] | Time Deposits and Certificates of Deposit [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities		22	0.7
Fair Value Measurements, Recurring [Member] | U.S. Treasury Obligations [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash and cash equivalents		175	62.1
Available-for-sale securities		11.5	223.2
Fair Value Measurements, Recurring [Member] | U.S. Agency Obligations [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities		0.6
Fair Value Measurements, Recurring [Member] | Bankers' Acceptance Drafts [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities		0.5	3.8
Fair Value Measurements, Recurring [Member] | Mutual Funds and Exchange Traded Funds [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Deferred compensation plan assets		1.6	1.7
Fair Value Measurements, Recurring [Member] | Other Current Liabilities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total liabilities		0.6	6.5
Fair Value Measurements, Recurring [Member] | Other Noncurrent Liabilities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total liabilities		5	14
Fair Value Measurements, Recurring [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash and cash equivalents		55.4	1.3
Total assets		55.4	1.3
Total current assets		55.4	1.3
Fair Value Measurements, Recurring [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] | Money Market Funds [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash and cash equivalents		55.4	1.3
Fair Value Measurements, Recurring [Member] | Significant Other Observable Inputs (Level 2) [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash and cash equivalents		175.1	62.4
Total assets		295.2	317.1
Total liabilities		5.6	20.5
Short-term investments		76.4	227.7
Other current assets		6.9
Total current assets		258.4	290.1
Long-term investments		6.2	6.5
Other assets		30.6	20.5
Total long-term assets		36.8	27
Fair Value Measurements, Recurring [Member] | Significant Other Observable Inputs (Level 2) [Member] | Interest Rate Hedge [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivatives-interest rate hedge-non-current		8.7
Derivatives – interest rate hedge – non-current		5	14
Fair Value Measurements, Recurring [Member] | Significant Other Observable Inputs (Level 2) [Member] | Foreign Exchange Contracts [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivatives-foreign exchange forward contracts		3.5
Derivatives – forward exchange contracts		0.6	6.5
Fair Value Measurements, Recurring [Member] | Significant Other Observable Inputs (Level 2) [Member] | Derivatives Foreign Currency Options [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivatives-foreign currency options		3.4
Fair Value Measurements, Recurring [Member] | Significant Other Observable Inputs (Level 2) [Member] | Commercial Paper [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash and cash equivalents		0.1	0.3
Available-for-sale securities		41.8
Fair Value Measurements, Recurring [Member] | Significant Other Observable Inputs (Level 2) [Member] | Group Insurance Contracts [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities		6.2	6.5
Fair Value Measurements, Recurring [Member] | Significant Other Observable Inputs (Level 2) [Member] | Israeli Pension Assets [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Pension assets		20.3	18.8
Fair Value Measurements, Recurring [Member] | Significant Other Observable Inputs (Level 2) [Member] | Time Deposits and Certificates of Deposit [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities		22	0.7
Fair Value Measurements, Recurring [Member] | Significant Other Observable Inputs (Level 2) [Member] | U.S. Treasury Obligations [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash and cash equivalents		175	62.1
Available-for-sale securities		11.5	223.2
Fair Value Measurements, Recurring [Member] | Significant Other Observable Inputs (Level 2) [Member] | U.S. Agency Obligations [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities		0.6
Fair Value Measurements, Recurring [Member] | Significant Other Observable Inputs (Level 2) [Member] | Bankers' Acceptance Drafts [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities		0.5	3.8
Fair Value Measurements, Recurring [Member] | Significant Other Observable Inputs (Level 2) [Member] | Mutual Funds and Exchange Traded Funds [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Deferred compensation plan assets		1.6	1.7
Fair Value Measurements, Recurring [Member] | Significant Other Observable Inputs (Level 2) [Member] | Other Current Liabilities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total liabilities		0.6	6.5
Fair Value Measurements, Recurring [Member] | Significant Other Observable Inputs (Level 2) [Member] | Other Noncurrent Liabilities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total liabilities		$ 5	$ 14

Derivatives - Additional Inform

Derivatives - Additional Information (Detail) € in Millions, $ in Millions	12 Months Ended
	Dec. 31, 2021USD ($)	Dec. 31, 2021EUR (€)	Dec. 31, 2020USD ($)
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
Foreign Exchange Contracts [Member]
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Gross notional values of outstanding forward foreign exchange contracts | $	$ 240.4		$ 176.2
Derivatives Foreign Currency Options [Member]
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Notional amount in EUR/USD | €		€ 300
Derivatives Foreign Currency Options [Member] | Other Expense, Net [Member]
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Unrealized gain net of premium | $	3.4
Derivatives Foreign Currency Options [Member] | Term Loan [Member]
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Notional amount in EUR/USD | €		200
Derivatives Foreign Currency Options [Member] | Atotech [Member] | Term Loan [Member]
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Notional amount in EUR/USD | €		€ 500
Derivatives Foreign Currency Options [Member] | Photon Control [Member] | Other Expense, Net [Member]
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Fair value realized loss | $	$ 10.3

Derivatives - Summary of Primar

Derivatives - Summary of Primary Net Hedging Positions and Corresponding Fair Values (Detail) - Foreign Exchange Contracts [Member] - USD ($) $ in Millions	Dec. 31, 2021	Dec. 31, 2020
Derivative [Line Items]
Currency Hedged (Buy/Sell), Gross Notional Value, Net	$ 240.4	$ 176.2
Currency Hedged (Buy/Sell), Fair Value, (Liability)/Asset, Net	3	(6.5)
U.S. Dollar/Japanese Yen [Member]
Derivative [Line Items]
Currency Hedged (Buy/Sell), Gross Notional Value, Net	60.2	61.5
Currency Hedged (Buy/Sell), Fair Value, (Liability)/Asset, Net	1.7	(1.1)
U.S. Dollar/South Korean Won [Member]
Derivative [Line Items]
Currency Hedged (Buy/Sell), Gross Notional Value, Net	107.7	62.2
Currency Hedged (Buy/Sell), Fair Value, (Liability)/Asset, Net	1.1	(3.1)
U.S. Dollar/Euro [Member]
Derivative [Line Items]
Currency Hedged (Buy/Sell), Gross Notional Value, Net	15.1	13.1
Currency Hedged (Buy/Sell), Fair Value, (Liability)/Asset, Net	0.3	(0.6)
U.S. Dollar/U.K. Pound Sterling [Member]
Derivative [Line Items]
Currency Hedged (Buy/Sell), Gross Notional Value, Net	10.7	6.1
Currency Hedged (Buy/Sell), Fair Value, (Liability)/Asset, Net		(0.3)
U.S. Dollar/Taiwan Dollar [Member]
Derivative [Line Items]
Currency Hedged (Buy/Sell), Gross Notional Value, Net	46.7	33.3
Currency Hedged (Buy/Sell), Fair Value, (Liability)/Asset, Net	$ (0.1)	$ (1.4)

Derivatives - Summary of Variou

Derivatives - Summary of Various Interest Rate Hedges (Detail) - Incremental Term Loan Facility [Member] - Interest Rate Hedge [Member] - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Derivative [Line Items]
Fair Value Asset (Liability)	$ 3.7	$ (14)
Swap Agreement One [Member]
Derivative [Line Items]
Trade Date	Apr. 3, 2019
Effective Date	Apr. 5, 2019
Maturity	Mar. 31, 2023
Fixed Rate	2.309%
Notional Amount at Effective Date	$ 300
Fair Value Asset (Liability)	$ (5)	(12.4)
Swap Agreement Two [Member]
Derivative [Line Items]
Trade Date	Oct. 29, 2020
Effective Date	Oct. 26, 2021
Maturity	Feb. 28, 2025
Fixed Rate	0.485%
Notional Amount at Effective Date	$ 200
Fair Value Asset (Liability)	$ 3.9	(0.7)
Swap Agreement Three [Member]
Derivative [Line Items]
Trade Date	Oct. 29, 2020
Effective Date	Mar. 31, 2022
Maturity	Feb. 28, 2025
Fixed Rate	0.623%
Notional Amount at Effective Date	$ 100
Fair Value Asset (Liability)	$ 4.8	$ (0.9)

Derivatives - Summary of Foreig

Derivatives - Summary of Foreign Currency Option Contracts Purchased to Hedge Conversion (Detail) - Derivatives Foreign Currency Options [Member] € in Millions, $ in Millions	12 Months Ended
	Dec. 31, 2021USD ($)	Dec. 31, 2021EUR (€)
Derivative [Line Items]
Notional amount in EUR/USD		€ 300
Notional Amount at Effective Date		€ 300
Option Agreement [Member]
Derivative [Line Items]
Trade Date	Oct. 26, 2021
Effective Date	Oct. 26, 2021
Maturity	Jan. 31, 2022
Fixed Rate	1.1615%	1.1615%
Notional amount in EUR/USD	$ 348.3	€ 300
Notional Amount at Effective Date	348.3	€ 300
Fair Value Asset (Liability) | $	$ 3

Derivatives - Summary of Gain (

Derivatives - Summary of Gain (Loss) on Derivatives Designated as Cash Flow Hedging Instruments (Detail) - Cash Flow Hedging [Member] - Foreign Exchange Contracts [Member] - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Derivative Instruments, Gain (Loss) [Line Items]
Net gain (loss) recognized in OCI, net of tax	$ 20	$ (10.6)	$ (10)
Net (loss) gain reclassified from OCI into income	$ (1.5)	$ 1.7	$ 5.7

Derivatives - Summary of Gain_2

Derivatives - Summary of Gain (Loss) on Derivatives Not Designated as Cash Flow Hedging Instruments (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Foreign Exchange Contracts [Member]
Derivative Instruments Gain Loss Not Designated As Hedging Instruments [Line Items]
Net gain (loss) recognized in income	$ 4.8	$ (1.5)	$ (1.3)

Inventories - Summary of Invent

Inventories - Summary of Inventories (Detail) - USD ($) $ in Millions	Dec. 31, 2021	Dec. 31, 2020
Inventory Disclosure [Abstract]
Raw material	$ 393.8	$ 321.3
Work-in-process	82.5	76.7
Finished goods	100.4	103.4
Inventories	$ 576.7	$ 501.4

Inventories - Additional Inform

Inventories - Additional Information (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Inventory Disclosure [Abstract]
Inventory related excess and obsolete charges	$ 16.2	$ 24.8	$ 24.7

Property, Plant and Equipment -

Property, Plant and Equipment - Summary of Property, Plant and Equipment (Detail) - USD ($) $ in Millions	Dec. 31, 2021	Dec. 31, 2020
Property, Plant and Equipment [Line Items]
Property, plant and equipment	$ 938.4	$ 883.4
Less: accumulated depreciation	613.1	599.1
Property, plant and equipment, net	325.3	284.3
Land [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment	11.9	12.3
Building and Building Improvements [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment	132.8	120.2
Machinery and Equipment [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment	428.1	397.8
Furniture and Fixtures, Office Equipment and Software [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment	186.7	187.1
Leasehold Improvements [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment	151.7	95.4
Construction in Progress [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment	$ 27.2	$ 70.6

Property, Plant and Equipment_2

Property, Plant and Equipment - Additional Information (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Property Plant And Equipment [Abstract]
Depreciation of property, plant and equipment	$ 48.8	$ 44	$ 42.6

Leases - Lease expense (Detail)

Leases - Lease expense (Detail) - USD ($) $ in Millions		12 Months Ended
		Dec. 31, 2021	Dec. 31, 2020
Lease cost:
Operating lease	[1]	$ 27.6	$ 29.2
Short-term lease		4.5	4.9
Total lease cost		$ 32.1	$ 34.1
[1]	Operating lease cost includes an immaterial amount of variable expenses, offset by certain sublease rental income.

Leases - Additional Information

Leases - Additional Information (Detail) $ in Millions	12 Months Ended
	Dec. 31, 2021USD ($)	Dec. 31, 2020USD ($)	Dec. 31, 2019USD ($)Property
Leases [Line Items]
Weighted average discount rate	3.00%	3.00%
Weighted average remaining lease term	14 years 2 months 12 days	15 years
Operating cash flows used for operating leases	$ 18	$ 13
Tenant improvement allowance receipts	5	$ 10.3
Gain loss on sale lease back			$ 6.8
Proceeds received on sale lease back transactions			$ 41.2
2021 lease payment	24
Tenant improvement allowance	$ 1.3
Boulder, Colorado [Member]
Leases [Line Items]
Number of properties sold as part of sale and leaseback transactions | Property			2
Portland, Oregon [Member]
Leases [Line Items]
Number of properties sold as part of sale and leaseback transactions | Property			3

Leases - Schedule of Future Lea

Leases - Schedule of Future Lease Payments (Detail) $ in Millions	Dec. 31, 2021USD ($)
Leases [Abstract]
2022	$ 24
2023	22.6
2024	21
2025	18.8
2026	16.7
Thereafter	158.1
Total lease payments	261.2
Less: imputed interest	50.6
Total lease liabilities	$ 210.6

Goodwill and Intangible Asset_2

Goodwill and Intangible Assets - Goodwill (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Goodwill And Intangible Assets Disclosure [Abstract]
Beginning balance, Goodwill Gross Carrying Amount	$ 1,211.8	$ 1,202.8
Acquired goodwill, Gross Carrying Amount	168
Foreign currency translation, Gross Carrying Amount	(6.2)	9
Ending balance, Goodwill Gross Carrying Amount	1,373.6	1,211.8
Beginning balance, Accumulated Impairment Loss	(145.4)	(144.3)
Impairment of goodwill, Accumulated Impairment Loss		(1.1)
Ending balance, Accumulated Impairment Loss	(145.4)	(145.4)
Beginning balance, Goodwill Net	1,066.4	1,058.5
Acquired goodwill, Net	168
Impairment of goodwill, Net		(1.1)
Foreign currency translation, Net	(6.2)	9
Ending balance, Goodwill Net	$ 1,228.2	$ 1,066.4

Goodwill and Intangible Asset_3

Goodwill and Intangible Assets - Acquired Intangible Assets (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Finite-Lived Intangible Assets [Line Items]
Intangible assets, Gross	$ 996.7	$ 875.5
Accumulated Impairment Charges	(1.5)	(1.5)
Accumulated Amortization	(418.4)	(363.2)
Foreign Currency Translation	(0.8)	1.4
Intangible assets, net	576	512.2
Completed Technology [Member]
Finite-Lived Intangible Assets [Line Items]
Intangible assets, Gross	556.4	446.4
Accumulated Impairment Charges	(0.1)	(0.1)
Accumulated Amortization	(241.7)	(209.8)
Foreign Currency Translation	(0.2)	(0.1)
Intangible assets, net	314.4	236.4
Customer Relationships [Member]
Finite-Lived Intangible Assets [Line Items]
Intangible assets, Gross	317.6	308.2
Accumulated Impairment Charges	(1.4)	(1.4)
Accumulated Amortization	(124.2)	(104.8)
Foreign Currency Translation	(0.2)	1.7
Intangible assets, net	191.8	203.7
Patents, Trademarks, Trade Names and Other [Member]
Finite-Lived Intangible Assets [Line Items]
Intangible assets, Gross	122.7	120.9
Accumulated Amortization	(52.5)	(48.6)
Foreign Currency Translation	(0.4)	(0.2)
Intangible assets, net	$ 69.8	$ 72.1

Goodwill and Intangible Asset_4

Goodwill and Intangible Assets - Acquired Intangible Assets (Parenthetical) (Detail) - Photon Control Inc [Member] - USD ($) $ in Millions	Jul. 15, 2021	Dec. 31, 2021
Finite-Lived Intangible Assets [Line Items]
Acquired intangible assets, purchase price	$ 121.2	$ 121.2
Completed Technology [Member]
Finite-Lived Intangible Assets [Line Items]
Acquired intangible assets, purchase price	110	110
Customer Relationships [Member]
Finite-Lived Intangible Assets [Line Items]
Acquired intangible assets, purchase price	$ 9.4	9.4
Trademarks Tradenames And Backlog
Finite-Lived Intangible Assets [Line Items]
Acquired intangible assets, purchase price		$ 1.8

Goodwill and Intangible Asset_5

Goodwill and Intangible Assets - Additional Information (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Goodwill And Intangible Assets [Line Items]
Amortization of intangible assets	$ 55.3	$ 55.2	$ 67.4
Trademarks and Trade Names [Member]
Goodwill And Intangible Assets [Line Items]
Un-amortized Intangible assets, net	$ 55.9

Goodwill and Intangible Asset_6

Goodwill and Intangible Assets - Estimated Net Amortization Expense (Detail) $ in Millions	Dec. 31, 2021USD ($)
Goodwill And Intangible Assets Disclosure [Abstract]
2022	$ 59.6
2023	58.2
2024	57.3
2025	56.3
2026	52.7
Thereafter	$ 236

Product Warranties - Product Wa

Product Warranties - Product Warranty Activities (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Product Warranty Liability [Line Items]
Beginning balance	$ 18.4	$ 14.9
Provision for product warranties	38.1	28.3
Direct and other charges to warranty liability	(36)	(24.8)
Ending balance	21.1	$ 18.4
Photon Control [Member]
Product Warranty Liability [Line Items]
Assumed product warranty liability from Photon Control Acquisition	$ 0.6

Product Warranties - Product _2

Product Warranties - Product Warranty Activities (Parenthetical) (Detail) - USD ($) $ in Millions	Dec. 31, 2021	Dec. 31, 2020
Other Current Liabilities [Member]
Product Warranty Liability [Line Items]
Short-term product warranties	$ 19.7	$ 15.6
Other Noncurrent Liabilities [Member]
Product Warranty Liability [Line Items]
Long-term product warranties	$ 1.4	$ 2.8

Debt - Schedule of Short-Term D

Debt - Schedule of Short-Term Debt (Detail) - USD ($) $ in Millions	Dec. 31, 2021	Dec. 31, 2020
Short Term Debt [Line Items]
Short term debt	$ 9	$ 14.5
Term Loan Facility [Member]
Short Term Debt [Line Items]
Short term debt	$ 9	9
Japan [Member] | Lines of Credit and Financing Facility [Member]
Short Term Debt [Line Items]
Short term debt		$ 5.5

Debt - Schedule of Long-Term De

Debt - Schedule of Long-Term Debt (Detail) - USD ($) $ in Millions	Dec. 31, 2021	Dec. 31, 2020
Debt Instrument [Line Items]
Long term debt	$ 807.9	$ 815
Term Loan Facility, Net [Member]
Debt Instrument [Line Items]
Long term debt	$ 807.9	$ 815

Debt - Schedule of Long-Term _2

Debt - Schedule of Long-Term Debt (Parenthetical) (Detail) - USD ($) $ in Millions	Dec. 31, 2021	Dec. 31, 2020
Term Loan Facility, Net [Member]
Debt Instrument [Line Items]
Deferred financing fees, original issuance discount and re-pricing fee	$ 7.5	$ 9.4

Debt - Additional Information (

Debt - Additional Information (Detail) - USD ($) $ in Millions	Dec. 30, 2021	Dec. 30, 2020	Dec. 30, 2019
Debt Disclosure [Abstract]
Interest expense	$ 25.4	$ 29.1	$ 44.1

Debt - Senior Secured Term Loan

Debt - Senior Secured Term Loan Credit Facility - Additional Information (Detail) - Newport Corporation [Member] - Secured Debt [Member]	12 Months Ended
	Dec. 31, 2021USD ($)
Term Loan Facility [Member]
Debt Instrument [Line Items]
Secured term loan, face amount	$ 780,000,000
Term loan maturity date	Feb. 2, 2026
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 1.00%, plus, in each case, an applicable margin of 0.75%; 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 0.0%, plus an applicable margin of 1.75%. The Company has elected the interest rate as described in clause (b) of the foregoing sentence. The Term Loan Credit Agreement provides that, unless an alternate rate of interest is agreed, all loans will be determined by reference to the base rate if the LIBOR rate cannot be ascertained, if regulators impose material restrictions on the authority of a lender to make LIBOR rate loans, or for other reasons.
Debt instrument, interest rate	0.00%
Debt instrument, frequency of periodic payment	quarterly
Debt instrument, periodic payment percentage	0.25%
Term Loan Facility [Member] | Base Rate [Member]
Debt Instrument [Line Items]
Debt instrument, interest rate	0.75%
Term Loan Facility [Member] | Federal Funds Rate [Member]
Debt Instrument [Line Items]
Debt instrument, interest rate	0.50%
Term Loan Facility [Member] | LIBOR [Member]
Debt Instrument [Line Items]
Debt instrument, interest rate	1.75%
Term Loan Facility [Member] | Adjusted One Month LIBOR [Member]
Debt Instrument [Line Items]
Debt instrument, interest rate	1.00%
Term Loan Facility [Member] | Floor Rate [Member]
Debt Instrument [Line Items]
Debt instrument, interest rate	1.00%
May Term Loan Amendment [Member]
Debt Instrument [Line Items]
Line of credit facility minimum additional borrowing capacity	$ 600,000,000
Minimum percentage of consolidated EBITDA	100.00%
Leverage ratio	3.25
Incremental Term Loan Facility [Member]
Debt Instrument [Line Items]
Secured term loan, face amount	$ 824,400,000
Debt instrument, interest rate	1.80%

Debt - Senior Secured Asset-Bas

Debt - Senior Secured Asset-Based Revolving Credit Facility - Additional Information (Detail)	12 Months Ended
	Dec. 31, 2021USD ($)
Debt Instrument [Line Items]
Percentage of commitment amount available	10.00%
Availability under credit facility	$ 8,500,000
Number of consecutive business days for borrowing base	30 days
Asset Based Credit Agreement [Member]
Debt Instrument [Line Items]
Percentage of commitment amount available	10.00%
Availability under credit facility	$ 8,500,000
Number of consecutive business days for borrowing base	3 days
Electro Scientific Industries Inc [Member] | Asset Based Credit Agreement [Member] | Revolving Lines of Credit [Member]
Debt Instrument [Line Items]
Secured term loan, face amount	$ 100,000,000
Electro Scientific Industries Inc [Member] | Asset Based Credit Agreement [Member] | Secured Debt [Member]
Debt Instrument [Line Items]
Percentage of borrowing based on eligible accounts	85.00%
Percentage of borrowing based on lower of net book value of eligible inventory	20.00%
Percentage of borrowing base	30.00%
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%
Electro Scientific Industries Inc [Member] | Asset Based Credit Agreement [Member] | Letter of Credit [Member]
Debt Instrument [Line Items]
Borrowing capacity in the form of letters of credit	$ 25,000,000
Newport Corporation [Member] | Asset Based Credit Agreement [Member] | Revolving Lines of Credit [Member]
Debt Instrument [Line Items]
Clause to accelerate the scheduled maturities	Under the ABL Facility, the Company is required to prepay amounts outstanding under the ABL Facility (1) if amounts outstanding under the ABL Facility exceed the lesser of (a) the commitment amount and (b) the borrowing base, in an amount required to reduce such shortfall, (2) if amounts outstanding under the ABL Facility in any currency other than U.S. dollars exceed the sublimit for such currency, in an amount required to reduce such shortfall, and (3) during any period in which the Company has excess availability less than the greater of (a) 10.0% of the lesser of (x) the commitment amount and (y) the borrowing base (the “Line Cap”) and (b) $8.5 for 3 consecutive business days, until the time when the Company has excess availability equal to or greater than the greater of (A) 10.0% of the Line Cap and (B) $8.5 for 30 consecutive days, or during the continuance of an event of default, with immediately available funds in its blocked accounts.
Newport Corporation [Member] | Asset Based Credit Agreement [Member] | Secured Debt [Member]
Debt Instrument [Line Items]
Debt instrument, interest rate	0.50%
Debt instrument, interest rate terms	As of December 31, 2021, borrowings under the ABL Facility bear interest at a rate per annum equal to, at the Company’s option, any of the following, plus, in each case, an applicable margin: (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 0.00%, plus, in each case, an applicable margin ranging from 0.25% to 0.50%; 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, with a floor of 0.00%, plus, in each case, an applicable margin ranging from 1.25% to 1.50%.  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.
Initial commitment fee percentage	0.25%
Number of consecutive business days for borrowing base	30 days
Minimum term loan with earlier maturity than ABL facility subject to spring maturity	$ 100,000,000
Debt instrument, collateral	All obligations under the ABL 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.
Clause to maintain a Fixed Charge Coverage Ratio	From the time when the Company has excess availability less than the greater of (a) 10.0% of the Line Cap and (b) $8.5 until the time when the Company has excess availability equal to or greater than the greater of (a) 10.0% of the Line Cap and (b) $8.5 for 30 consecutive days, or during the continuance of an event of default, the ABL Credit Agreement requires the Company to maintain a fixed charge coverage ratio, tested on the last day of each fiscal quarter, of at least 1.0 to 1.0.
Newport Corporation [Member] | Asset Based Credit Agreement [Member] | Secured Debt [Member] | Minimum [Member]
Debt Instrument [Line Items]
Percentage of line of credit facility excess availability commitment fee	10.00%
Line of credit facility excess availability amount	$ 8,500,000
Fixed charge coverage ratio	1
Newport Corporation [Member] | Asset Based Credit Agreement [Member] | Secured Debt [Member] | Maximum [Member]
Debt Instrument [Line Items]
Percentage of line of credit facility excess availability commitment fee	10.00%
Line of credit facility excess availability amount	$ 8,500,000
Newport Corporation [Member] | Asset Based Credit Agreement [Member] | Secured Debt [Member] | Adjusted One Month LIBOR [Member]
Debt Instrument [Line Items]
Debt instrument, interest rate	1.00%
Newport Corporation [Member] | Asset Based Credit Agreement [Member] | Secured Debt [Member] | Floor Rate [Member]
Debt Instrument [Line Items]
Debt instrument, interest rate	0.00%
Newport Corporation [Member] | Asset Based Credit Agreement [Member] | Secured Debt [Member] | Base Rate [Member] | Minimum [Member]
Debt Instrument [Line Items]
Debt instrument, interest rate	0.25%
Newport Corporation [Member] | Asset Based Credit Agreement [Member] | Secured Debt [Member] | Base Rate [Member] | Maximum [Member]
Debt Instrument [Line Items]
Debt instrument, interest rate	0.50%
Newport Corporation [Member] | Asset Based Credit Agreement [Member] | Secured Debt [Member] | LIBOR [Member] | Minimum [Member]
Debt Instrument [Line Items]
Debt instrument, interest rate	1.25%
Newport Corporation [Member] | Asset Based Credit Agreement [Member] | Secured Debt [Member] | LIBOR [Member] | Maximum [Member]
Debt Instrument [Line Items]
Debt instrument, interest rate	1.50%

Debt - Lines of Credit and Borr

Debt - Lines of Credit and Borrowing Arrangements - Additional Information (Detail) - Revolving Lines of Credit [Member] - Japan [Member] - USD ($)	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Debt Instrument [Line Items]
Aggregate borrowings expire and renewal period	3 months
Borrowing capacity in the form of letters of credit	$ 29,100,000
Total borrowings outstanding	$ 0	$ 5,500,000

Debt - Schedule of Contractual

Debt - Schedule of Contractual Maturities of Debt Obligations (Detail) $ in Millions	Dec. 31, 2021USD ($)
Maturities Of Long Term Debt [Abstract]
2022	$ 9
2023	9
2024	9
2025	9
2026	$ 788.4

Income Taxes - Reconciliation o

Income Taxes - Reconciliation of Company's Effective Tax Rate to U.S. Federal Statutory Rate (Detail)	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Income Tax Disclosure [Abstract]
U.S. federal income tax statutory rate	21.00%	21.00%	21.00%
Federal tax credits	(0.70%)	(1.50%)	(2.90%)
State income taxes, net of federal benefit	1.50%	1.10%	2.30%
Effect of foreign operations taxed at various rates	(4.50%)	(5.00%)	(4.40%)
Executive compensation	0.90%	1.10%	5.80%
Gain on intercompany sale of assets			2.90%
Utilization of a capital loss			(1.20%)
Foreign derived intangible income	(1.70%)	(1.50%)	(3.80%)
Global intangible low taxed income, net of foreign tax credits	0.50%	0.90%	2.60%
Revaluation of U.S. deferred income taxes			(1.40%)
Stock-based compensation	(0.50%)	(0.70%)	(0.30%)
Deferred tax asset valuation allowance	(0.80%)	0.60%	0.10%
Release of income tax reserves (including interest)	(0.60%)		(0.80%)
Withholding taxes on foreign dividends, net of foreign tax credits	1.50%	0.70%	0.60%
Other	0.40%	0.50%	0.60%
Total	17.10%	17.20%	21.10%

Income Taxes - Components of In

Income Taxes - Components of Income from Operations Before Income Taxes and Related Provision for Income Taxes (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Income before income taxes:
United States	$ 249	$ 132	$ 2.3
Foreign	416.5	291	175.5
Income before income taxes	665.5	423	177.8
Current taxes:
United States	37.8	29.2	6.8
State	10.3	6.1	2
Foreign	64.8	44.7	32.8
Current taxes, Total	112.9	80	41.6
Deferred taxes:
United States	4.9	(7.9)	(1.7)
State and Foreign	(3.7)	0.8	(2.5)
Deferred taxes, Total	1.2	(7.1)	(4.2)
Provision for income taxes	$ 114.1	$ 72.9	$ 37.4

Income Taxes - Significant Comp

Income Taxes - Significant Components of Deferred Tax Assets and Deferred Tax Liabilities (Detail) - USD ($) $ in Millions	Dec. 31, 2021	Dec. 31, 2020
Deferred tax assets:
Carryforward losses and credits	$ 48.8	$ 54.2
Inventory and warranty reserves	37.3	32.4
Accrued expenses and other reserves	15.8	14.5
Stock-based compensation	3.5	5.1
Executive supplemental retirement benefits	1.5	1.8
Lease liability	44.7	48.7
Deferred tax assets utilization loss		4
Other	1	2.7
Total deferred tax assets	152.6	163.4
Deferred tax liabilities:
Acquired intangible assets and goodwill	(136.5)	(116.2)
Depreciation and amortization	(23.3)	(14.5)
Loan costs	(2)	(1.8)
Right-of-use asset	(41)	(46.4)
Foreign withholding taxes	(6.1)	(3.2)
Unrealized gain	(1.6)
Total deferred tax liabilities	(210.5)	(182.1)
Valuation allowance	(26.2)	(30.6)
Net deferred tax (liabilities) assets	$ (84.1)	$ (49.3)

Income Taxes - Additional Infor

Income Taxes - Additional Information (Detail) - USD ($) $ / shares in Units, $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Income Taxes [Line Items]
Gross tax research other tax credit carryforwards	$ 52.3
Accrued interest on unrecognized tax benefits	1	$ 0.7	$ 0.5
Net unrecognized tax benefits, excluding interest and penalties, related to foreign tax positions	3.6
Change in valuation allowance	$ (4.4)	$ 3.2	$ 9.4
Benefits of the tax holiday per share	$ 0.01	$ 0.03
Inland Revenue, Singapore (IRAS) [Member]
Income Taxes [Line Items]
Benefits of the tax holiday	$ 0.4	$ 1.7
Indefinite [Member]
Income Taxes [Line Items]
Gross tax research other tax credit carryforwards	$ 12.7
Federal State and Foreign [Member]
Income Taxes [Line Items]
Tax credit expiration period	2037
Operating loss carryforwards expiration date	Dec. 31, 2039
Federal State and Foreign [Member] | Indefinite [Member]
Income Taxes [Line Items]
Operating loss carryforwards	$ 51.7
Federal State and Foreign [Member] | 2017 [Member]
Income Taxes [Line Items]
Operating loss carryforwards	$ 93.3

Income Taxes - Reconciliation_2

Income Taxes - Reconciliation of Beginning and Ending Amount of Gross Unrecognized Tax Benefits (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Income Tax Disclosure [Abstract]
Balance at beginning of year	$ 47	$ 43.5	$ 32.7
(Decreases) increases for prior years	(0.6)	1.1	9.3
Increases for the current year	2.3	6.8	3.2
Reductions related to expiration of statutes of limitations and audit settlements	(5.6)	(4.4)	(1.7)
Balance at end of year	$ 43.1	$ 47	$ 43.5

Stock-Based Compensation - Addi

Stock-Based Compensation - Additional Information (Detail) - USD ($) $ / shares in Units, $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Common stock, shares issued	55,500,000	55,200,000
Weighted Average Grant Date Fair Value, Granted	$ 33.55	$ 23.88	$ 16.04
Restricted Stock Units (RSUs) [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Total fair value of RSUs vested	$ 56.6	$ 86.2	$ 68.1
Total compensation expense related to restricted stock unites	$ 35.6
Estimated weighted average amortization period	1 year
Restricted Stock Units (RSUs) [Member] | Share-based Compensation Award, Tranche One [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Vesting percentage per year of RSUs from date of grant	33.00%
RSUs Granted to Employees [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Share based compensation arrangement by share based payment award vesting period description	employees who meet certain retirement eligibility requirements will vest in full upon each such employee’s retirement and are expensed immediately.
RSUs Granted To Directors [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Share based compensation arrangement by share based payment award vesting period description	directors generally vest at the earliest of (1) one day prior to the next annual meeting, (2) 13 months from date of grant, or (3) the effective date of a change in control of the Company.
2014 ESPP [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Shares authorized for issuance	2,500,000
Percentage of payroll deduction to compensation	up to 10%
Percentage of Common Stock through payroll deductions	10.00%
Percentage of closing price of the Common Stock	90.00%
Common stock, shares issued	100,000	100,000	100,000
Common stock reserved for issuance	1,600,000
2014 ESPP [Member] | Offer Terminate [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Percentage of closing price of the Common Stock	90.00%
Stock Incentive Plan 2014 [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Common stock reserved for issuance	12,200,000
Shares available for future grant	18,000,000
Number of shares returned for each common stock	2.4
Percentage of exercise price fair value option grant in period	100.00%
Stock Incentive Plan 2014 [Member] | Restricted Stock Units (RSUs) [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Weighted Average Grant Date Fair Value, Granted	$ 177.71	$ 98.72
Minimum [Member] | Restricted Stock Units (RSUs) [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Level of performance target achieved	0.00%	0.00%	0.00%
Minimum [Member] | 2014 ESPP [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Common stock, exercise price	$ 126	$ 95.07	$ 64.31
Maximum [Member] | Restricted Stock Units (RSUs) [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Level of performance target achieved	200.00%	150.00%	150.00%
Maximum [Member] | 2014 ESPP [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Common stock, exercise price	$ 136.94	$ 93.77	$ 63.78

Stock-Based Compensation - Summ

Stock-Based Compensation - Summary of Activity for RSUs (Detail) - $ / shares	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Weighted Average Grant Date Fair Value, Granted	$ 33.55	$ 23.88	$ 16.04
Restricted Stock Units (RSUs) [Member] | Stock Incentive Plan 2014 [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
RSUs, beginning of period	600,000	1,100,000
Granted	200,000	300,000
Vested	(300,000)	(800,000)
RSUs end of period	500,000	600,000	1,100,000
RSUs, Weighted Average Grant Date Fair Value, Beginning of period	$ 93.26	$ 85.93
Weighted Average Grant Date Fair Value, Granted	177.71	98.72
Weighted Average Grant Date Fair Value, Vested	95.95	85.32
RSUs, Weighted Average Grant Date Fair Value, end of period	$ 127.93	$ 93.26	$ 85.93

Stock-Based Compensation - Effe

Stock-Based Compensation - Effect of Recording Stock-Based Compensation (Detail) - USD ($) $ / shares in Units, $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Stock-based compensation expense	$ 36.7	$ 29.5	$ 49.2
Windfall tax effect on stock-based compensation	(4.6)	(2.4)	(2.2)
Net effect on net income	$ 32.1	$ 27.1	$ 47
Basic	$ 0.58	$ 0.49	$ 0.86
Diluted	$ 0.58	$ 0.49	$ 0.85
Restricted Stock Units (RSUs) [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Stock-based compensation expense	$ 33.8	$ 27	$ 47.1
Employee Stock Purchase Plan [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Stock-based compensation expense	$ 2.9	$ 2.5	$ 2.1

Stock-Based Compensation - Pre-

Stock-Based Compensation - Pre-Tax Effect Within Consolidated Statements of Operations of Recording Stock-Based Compensation (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Line Items]
Stock-based compensation expense	$ 36.7	$ 29.5	$ 49.2
Cost of Revenues [Member]
Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Line Items]
Stock-based compensation expense	3.8	4.2	2.8
Research and Development [Member]
Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Line Items]
Stock-based compensation expense	4.5	4	3.8
Selling, General and Administrative [Member]
Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Line Items]
Stock-based compensation expense	$ 28.4	20.4	20.5
Acquisition and Integration Cost [Member]
Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Line Items]
Stock-based compensation expense		$ 0.9	21.7
Restructuring Related Expense [Member]
Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Line Items]
Stock-based compensation expense			$ 0.4

Stock-Based Compensation - Fair

Stock-Based Compensation - Fair Value of Employee Purchase Rights Estimated Using Black-Scholes Option-Pricing Model (Detail) - $ / shares	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]
Expected life (years)	6 months	6 months	6 months
Risk-free interest rate	0.10%	0.90%	2.40%
Expected volatility	39.30%	45.40%	38.70%
Expected annual dividends per share	$ 0.88	$ 0.80	$ 0.80

Stockholders' Equity - Addition

Stockholders' Equity - Additional Information (Detail) - USD ($)	Feb. 07, 2022	Jul. 25, 2011	Dec. 31, 2021	Sep. 30, 2021	Jun. 30, 2021	Mar. 31, 2021	Dec. 31, 2020	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Stockholders Equity [Line Items]
Common stock, value of shares authorized to repurchase		$ 200,000,000
Stock repurchase, shares		2,600,000									0	0	0
Value of shares repurchased		$ 127,000,000
Cash dividends per common share			$ 0.22	$ 0.22	$ 0.22	$ 0.20	$ 0.20	$ 0.20	$ 0.20	$ 0.20	$ 0.86	$ 0.80
Dividend payment to common shareholders											$ 47,600,000	$ 44,000,000	$ 43,500,000
Subsequent Event [Member]
Stockholders Equity [Line Items]
Dividend declared date	Feb. 7, 2022
Cash dividend to be paid	$ 0.22
Dividend to be paid date	Mar. 11, 2022
Dividend declared, shareholders of record date	Feb. 28, 2022

Employee Benefit Plans - Additi

Employee Benefit Plans - Additional Information (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Defined Benefit Plan Disclosure [Line Items]
Employee contribution to Company's profit sharing plan percentage		1.00%
Employee contribution to Company's profit sharing plan percentage		50.00%
Minimum age limit for specified additional amount		50 years
Company's contributions		$ 7.6	$ 7.2	$ 6.9
Bonus expense		75.6	66.4	32.2
Supplemental retirement benefits cost		0.1	0.3	$ 3.2
Accumulated benefit obligation noncurrent		2.6	2.5
Israel [Member]
Defined Benefit Plan Disclosure [Line Items]
Pension assets		20.3	18.8
Defined benefit plan, vested benefit obligations		23.1	21.7
Germany [Member]
Defined Benefit Plan Disclosure [Line Items]
Pension assets		$ 6.2	$ 6.5
Maximum [Member] | Germany [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan assets guaranteed rate of return		4.25%
Minimum [Member] | Germany [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan assets guaranteed rate of return		2.25%
Forecast [Member] | Maximum [Member]
Defined Benefit Plan Disclosure [Line Items]
Company's contributions	$ 1

Employee Benefit Plans - Summar

Employee Benefit Plans - Summary of Net Periodic Benefit Costs (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Defined Benefit Plan Net Periodic Benefit Cost [Abstract]
Service cost	$ 1.1	$ 1
Interest cost on projected benefit obligations	0.2	0.4
Expected return on plan assets	(0.1)	(0.1)
Amortization of actuarial net loss	0.7	0.5
Net periodic benefit costs	$ 1.9	$ 1.8

Employee Benefit Plans - Summ_2

Employee Benefit Plans - Summary of Changes in Projected Benefit Obligations and Plan Assets, and Ending Balances of Defined Benefit Plans (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Change in projected benefit obligations:
Service cost	$ 1.1	$ 1
Interest cost	0.2	0.4
Change in plan assets:
Fair value of plan assets, beginning of year	12.9
Fair value of plan assets, end of year	12.3	12.9
Newport Corporation [Member]
Change in projected benefit obligations:
Projected benefit obligations, beginning of year	36.2	30.1
Service cost	1.1	1
Interest cost	0.2	0.4
Contributions by plan participants		0.7
Plan amendments		(0.2)
Actuarial loss	0.1	3
Benefits paid	(1.4)	(1.2)
Currency translation adjustments	(2.2)	2.4
Projected benefit obligations, end of year	34	36.2
Change in plan assets:
Fair value of plan assets, beginning of year	12.9	11.1
Company contributions	0.7	1.1
(Loss) gain on plan assets	(0.1)	0.6
Benefits paid	(0.6)	(0.5)
Currency translation adjustments	(0.6)	0.6
Fair value of plan assets, end of year	12.3	12.9
Net underfunded status	$ (21.7)	$ (23.3)

Employee Benefit Plans - Summ_3

Employee Benefit Plans - Summary of Estimated Benefit Payments for Defined Benefit Plans for Next 10 Years (Detail) $ in Millions	Dec. 31, 2021USD ($)
Defined Benefit Plan Estimated Future Benefit Payments [Abstract]
2022	$ 1.1
2023	1.1
2024	1.2
2025	1.6
2026	1.4
2027-2031	8.6
Estimated benefit payments for next 10 years, total	$ 15

Employee Benefit Plans - Schedu

Employee Benefit Plans - Schedule of Weighted Average Rates Used to Determine Net Periodic Benefit Costs (Detail)	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Defined Benefit Plan Weighted Average Assumptions Used In Calculating Net Periodic Benefit Cost [Abstract]
Discount rate	1.00%	1.10%
Rate of increase in salary levels	2.00%	2.20%
Expected long-term rate of return on assets	1.10%	1.20%

Employee Benefit Plans - Sche_2

Employee Benefit Plans - Schedule of Defined Benefit Plan Assets (Detail) - USD ($) $ in Millions	Dec. 31, 2021	Dec. 31, 2020
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan assets, amount	$ 12.3	$ 12.9
Defined benefit plan assets, percentage	100.00%	100.00%
Cash [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan assets, amount	$ 0.2	$ 0.2
Defined benefit plan assets, percentage	1.60%	1.30%
Debt Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan assets, amount	$ 5.1	$ 5.2
Defined benefit plan assets, percentage	41.50%	40.50%
Equity Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan assets, amount	$ 0.6	$ 0.7
Defined benefit plan assets, percentage	4.80%	5.60%
Other [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan assets, amount	$ 6.4	$ 6.8
Defined benefit plan assets, percentage	52.10%	52.60%

Net Income Per Share - Computat

Net Income Per Share - Computation of Basic and Diluted Net Income Per Share (Detail) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Numerator:
Net income	$ 551.4	$ 350.1	$ 140.4
Denominator:
Shares used in net income per common share – basic	55.4	55.1	54.7
Effect of dilutive securities	0.3	0.2	0.4
Shares used in net income per common share – diluted	55.7	55.3	55.1
Net income per common share:
Basic	$ 9.95	$ 6.36	$ 2.57
Diluted	$ 9.90	$ 6.33	$ 2.55

Business Segment, Geographic _4

Business Segment, Geographic Area, Product Information and Significant Customer Information - Additional Information (Detail)	12 Months Ended
	Dec. 31, 2021CustomerSegment	Dec. 31, 2020Customer	Dec. 31, 2019Customer
Segment Reporting Information [Line Items]
Number of reportable segments | Segment	3
Number of customers accounted for 47% ,44% and 33% of net revenue	10	10	10
Number of customers accounted for greater than 90 % of net revenue	10	10	10
Number of customers accounted for 10% or more of total revenue	2		0
Sales Revenue, Net [Member] | Customer Concentration Risk [Member] | Top Ten Customers [Member]
Segment Reporting Information [Line Items]
Concentration risk, percentage	47.00%	44.00%	33.00%
Sales Revenue, Net [Member] | Customer Concentration Risk [Member] | Semiconductor Products [Member]
Segment Reporting Information [Line Items]
Concentration risk, percentage	62.00%	59.00%	49.00%
Sales Revenue, Net [Member] | Customer Concentration Risk [Member] | Semiconductor Products [Member] | Minimum [Member]
Segment Reporting Information [Line Items]
Concentration risk, percentage	90.00%	90.00%	90.00%

Business Segment, Geographic _5

Business Segment, Geographic Area, Product Information and Significant Customer Information - Net Revenues by Reportable Segment (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Segment Reporting Information [Line Items]
Net revenues	$ 2,949.6	$ 2,330	$ 1,899.8
Vacuum & Analysis [Member]
Segment Reporting Information [Line Items]
Net revenues	1,861.5	1,405.9	990.5
Light & Motion [Member]
Segment Reporting Information [Line Items]
Net revenues	813.4	689.6	725.6
Equipment & Solutions [Member]
Segment Reporting Information [Line Items]
Net revenues	$ 274.7	$ 234.5	$ 183.7

Business Segment, Geographic _6

Business Segment, Geographic Area, Product Information and Significant Customer Information - Reconciliation of Segment Gross Profit to Consolidated Net Income (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Segment Reporting Information [Line Items]
Gross profit	$ 1,380.2	$ 1,049.5	$ 830.4
Research and development	200	173.1	164.1
Selling, general and administrative	385.1	353.1	330.3
Acquisition and integration costs	29.8	3.8	37.3
Restructuring and other	11.1	9.4	7
Amortization of intangible assets	55.3	55.2	67.4
Asset impairment		2.3	4.7
COVID-19 related net credits		(1.2)
Fees and expenses related to repricing of Term Loan Facility			6.6
Gain on sale of long-lived assets			(6.8)
Income from operations	698.9	453.8	219.8
Interest income	0.6	1.4	5.4
Interest expense	25.4	29.1	44.1
Other expense, net	8.6	3.1	3.3
Income before income taxes	665.5	423	177.8
Provision for income taxes	114.1	72.9	37.4
Net income	551.4	350.1	140.4
Vacuum & Analysis [Member]
Segment Reporting Information [Line Items]
Gross profit	867.8	633.7	426.4
Light & Motion [Member]
Segment Reporting Information [Line Items]
Gross profit	384.8	309.8	336.8
Equipment & Solutions [Member]
Segment Reporting Information [Line Items]
Gross profit	$ 127.6	$ 106	$ 67.2

Business Segment, Geographic _7

Business Segment, Geographic Area, Product Information and Significant Customer Information - Schedule of Capital Expenditures, Depreciation and Amortization Expense of Intangible Assets by Reportable Segment (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Segment Reporting Information [Line Items]
Capital expenditures	$ 86.7	$ 84.9	$ 63.9
Depreciation and amortization	104.1	99.2	110
Vacuum & Analysis [Member]
Segment Reporting Information [Line Items]
Capital expenditures	36.6	36	34.1
Depreciation and amortization	22.9	20.3	16.8
Light & Motion [Member]
Segment Reporting Information [Line Items]
Capital expenditures	37.1	32.1	23
Depreciation and amortization	46	43.2	53.9
Equipment & Solutions [Member]
Segment Reporting Information [Line Items]
Capital expenditures	13	16.8	6.8
Depreciation and amortization	$ 35.2	$ 35.7	$ 39.3

Business Segment, Geographic _8

Business Segment, Geographic Area, Product Information and Significant Customer Information - Segment Assets by Reportable Segment (Detail) - USD ($) $ in Millions	Dec. 31, 2021	Dec. 31, 2020
Segment Reporting Information [Line Items]
Accounts Receivable	$ 442.6	$ 392.7
Inventory	576.7	501.4
Total assets	1,019.3	894.1
Corporate, Eliminations & Other [Member]
Segment Reporting Information [Line Items]
Accounts Receivable	(25.3)	(10.7)
Inventory	(1)	(1.7)
Total assets	(26.3)	(12.4)
Vacuum & Analysis [Member] | Operating Segments [Member]
Segment Reporting Information [Line Items]
Accounts Receivable	285.4	229.1
Inventory	338.9	273.3
Total assets	624.3	502.4
Light & Motion [Member] | Operating Segments [Member]
Segment Reporting Information [Line Items]
Accounts Receivable	146.2	122.6
Inventory	177.3	166.1
Total assets	323.5	288.7
Equipment & Solutions [Member] | Operating Segments [Member]
Segment Reporting Information [Line Items]
Accounts Receivable	36.3	51.7
Inventory	61.5	63.7
Total assets	$ 97.8	$ 115.4

Business Segment, Geographic _9

Business Segment, Geographic Area, Product Information and Significant Customer Information - Reconciliation of Segment Assets to Consolidated Total Assets (Detail) - USD ($) $ in Millions	Dec. 31, 2021	Dec. 31, 2020
Segment Reporting, Asset Reconciling Item [Line Items]
Total segment assets	$ 1,019.3	$ 894.1
Cash and cash equivalents	966.3	608.3
Other current assets	85.3	74.3
Property, plant and equipment, net	325.3	284.3
Right-of-use assets	184.3	184.4
Other assets and long-term assets	73	45.6
Consolidated total assets	4,540.3	3,903.8
Segment Reconciling Items [Member]
Segment Reporting, Asset Reconciling Item [Line Items]
Cash and cash equivalents	1,042.7	836
Other current assets	85.3	74.3
Property, plant and equipment, net	325.3	284.3
Right-of-use assets	184.3	184.4
Goodwill and intangible assets, net	1,804.2	1,578.6
Other assets and long-term assets	79.2	52.1
Consolidated total assets	$ 4,540.3	$ 3,903.8

Business Segment, Geographic_10

Business Segment, Geographic Area, Product Information and Significant Customer Information - Schedule of Net Revenues and Long-Lived Assets by Geographic Regions (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Revenues from External Customers and Long-Lived Assets [Line Items]
Net revenues	$ 2,949.6	$ 2,330	$ 1,899.8
Long-lived assets	566.5	503.9
North America [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net revenues	1,271.8	1,058.9	888.4
Long-lived assets	425.2	364
South Korea [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net revenues	385.8	278.8	167.7
China [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net revenues	355.1	273.5	178.6
Taiwan [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net revenues	197.7	113.8	95.4
Japan [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net revenues	196.8	163.2	143.1
Other Asia [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net revenues	310.4	242.6	197.3
Europe [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net revenues	232	199.2	$ 229.3
Long-lived assets	35.6	45.1
Asia [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Long-lived assets	$ 105.7	$ 94.8

Business Segment, Geographic_11

Business Segment, Geographic Area, Product Information and Significant Customer Information - Summary of Goodwill Associated with Reportable Segments (Detail) - USD ($) $ in Millions	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Segment Reporting Information [Line Items]
Goodwill	$ 1,228.2	$ 1,066.4	$ 1,058.5
Vacuum & Analysis [Member]
Segment Reporting Information [Line Items]
Goodwill	195.2	196.2
Light & Motion [Member]
Segment Reporting Information [Line Items]
Goodwill	558.1	395.3
Equipment & Solutions [Member]
Segment Reporting Information [Line Items]
Goodwill	$ 474.9	$ 474.9

Business Segment, Geographic_12

Business Segment, Geographic Area, Product/Service Offerings and Significant Customer Information - Summary of Net Revenues by Major Customers (Detail) - Sales Revenue, Net [Member] - Customer Concentration Risk [Member]	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Lam Research Corporation [Member]
Segment Reporting Information [Line Items]
Concentration risk, percentage	16.00%	14.00%	9.00%
Applied Materials, Inc. [Member]
Segment Reporting Information [Line Items]
Concentration risk, percentage	11.00%	11.00%	9.00%

Restructuring and Other - Addit

Restructuring and Other - Additional Information (Detail) $ in Millions	12 Months Ended
	Dec. 31, 2021USD ($)Facility	Dec. 31, 2020USD ($)
Restructuring Cost and Other Cost [Line Items]
Restructuring charges	$ 7	$ 2.7
Other restructuring charges, facility cost	$ 2.8	7.2
Newport Corporation [Member]
Restructuring Cost and Other Cost [Line Items]
Insurance reimbursement received		$ 0.5
Europe [Member]
Restructuring Cost and Other Cost [Line Items]
Number of facilities yet to close | Facility	2

Restructuring and Other - Sched

Restructuring and Other - Schedule of Company's Restructuring Activity (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Restructuring And Related Activities [Abstract]
Balance at January 1	$ 0.3	$ 3.7
Restructuring charges	7	2.7
Payments and adjustments	(4.7)	(6.1)
Balance at December 31	$ 2.6	$ 0.3

Commitments and Contingencies -

Commitments and Contingencies - Additional Information (Detail) € in Millions	Oct. 22, 2021USD ($)	Jul. 01, 2021USD ($)shares	Dec. 31, 2021USD ($)	Oct. 23, 2021USD ($)	Oct. 22, 2021EUR (€)
Commitments And Contingencies [Line Items]
Purchase commitments covered by aggregate value			$ 367,700,000
Purchase commitments			less than one year
Liabilities. purchase obligation			$ 0
New Term Loan Facility [Member]
Commitments And Contingencies [Line Items]
Borrowing capacity in the form of letters of credit				$ 4,700,000,000
New Term Loan Facility [Member] | U.S. Dollar Tranche [Member]
Commitments And Contingencies [Line Items]
Borrowing capacity in the form of letters of credit	$ 4,700,000,000
Debt instrument, interest rate	2.25%
New Term Loan Facility [Member] | U.S. Dollar Tranche [Member] | Floor Rate [Member]
Commitments And Contingencies [Line Items]
Debt instrument, interest rate	0.50%
New Term Loan Facility [Member] | U.S. Dollar Tranche [Member] | Original Issue Discount
Commitments And Contingencies [Line Items]
Debt instrument, interest rate	0.25%
New Term Loan Facility [Member] | Euro Tranche
Commitments And Contingencies [Line Items]
Borrowing capacity in the form of letters of credit	$ 600,000,000				€ 500
Debt instrument, interest rate	2.75%
New Term Loan Facility [Member] | Euro Tranche | Floor Rate [Member]
Commitments And Contingencies [Line Items]
Debt instrument, interest rate	0.00%
New Term Loan Facility [Member] | Euro Tranche | Original Issue Discount
Commitments And Contingencies [Line Items]
Debt instrument, interest rate	0.25%
Atotech [Member]
Commitments And Contingencies [Line Items]
Date of acquisition agreement		Jul. 1, 2021
Price per share of common stock in cash		$ 16,200,000
Number of shares received per common shares | shares		0.0552
Business acquisition, total value of aggregate cash and stock consideration		$ 5,100,000,000
Atotech [Member] | New Term Loan Facility [Member]
Commitments And Contingencies [Line Items]
Senior secured credit facility		5,300,000,000
Atotech [Member] | Revolving Lines of Credit [Member]
Commitments And Contingencies [Line Items]
Senior secured credit facility		$ 500,000,000

Schedule II - Valuation and Q_2

Schedule II - Valuation and Qualifying Accounts (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Valuation Allowance for Doubtful Accounts [Member]
Valuation and Qualifying Accounts Disclosure [Line Items]
Balance at Beginning of Year	$ 2	$ 1.8	$ 5.2
Additions Acquisition Beginning Balance			0.2
Additions Charged to Costs and Expenses	1.3	0.1	(0.7)
Deductions & Write-offs	0.3	0.1	(2.9)
Balance at End of Year	3.6	2	1.8
Valuation Allowance for Sales Returns [Member]
Valuation and Qualifying Accounts Disclosure [Line Items]
Balance at Beginning of Year	1.8	1.4	1
Additions Charged to Costs and Expenses	(0.1)	0.3	0.2
Deductions & Write-offs	(0.1)	0.1	0.2
Balance at End of Year	1.6	1.8	1.4
Valuation Allowance on Deferred Tax Asset [Member]
Valuation and Qualifying Accounts Disclosure [Line Items]
Balance at Beginning of Year	30.6	27.4	17.9
Additions Acquisition Beginning Balance			5.9
Additions Charged to Costs and Expenses	2.3	4.2	4.9
Deductions & Write-offs	(6.7)	(1)	(1.3)
Balance at End of Year	$ 26.2	$ 30.6	$ 27.4