MSA Safety (MSA) 10-K 16 Feb 23 2022 FY Annual report Financial data

Cover

Cover - USD ($) $ in Billions	12 Months Ended
	Dec. 31, 2022	Feb. 10, 2023	Jun. 30, 2022
Cover [Abstract]
Document Type	10-K
Document Annual Report	true
Document Period End Date	Dec. 31, 2022
Current Fiscal Year End Date	--12-31
Document Transition Report	false
Entity File Number	1-15579
Entity Registrant Name	MSA SAFETY INCORPORATED
Entity Incorporation, State or Country Code	PA
Entity Tax Identification Number	46-4914539
Entity Address, Address Line One	1000 Cranberry Woods Drive
Entity Address, City or Town	Cranberry Township,
Entity Address, State or Province	PA
Entity Address, Postal Zip Code	16066-5207
City Area Code	724
Local Phone Number	776-8600
Title of 12(b) Security	Common Stock, no par value
Trading Symbol	MSA
Security Exchange Name	NYSE
Entity Well-known Seasoned Issuer	Yes
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Large Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
ICFR Auditor Attestation Flag	true
Entity Shell Company	false
Entity Public Float			$ 4.4
Entity Common Stock, Shares Outstanding (in shares)		39,213,240
Documents Incorporated by Reference	Portions of the Proxy Statement for the May 12, 2023 Annual Meeting of Shareholders are incorporated by reference into Part III.
Entity Central Index Key	0000066570
Document Fiscal Year Focus	2022
Document Fiscal Period Focus	FY
Amendment Flag	false

Audit Information

Audit Information	12 Months Ended
	Dec. 31, 2022
Auditor Information [Abstract]
Auditor Name	Ernst & Young LLP
Auditor Location	Pittsburgh, Pennsylvania
Auditor Firm ID	42

Consolidated Statements of Inco

Consolidated Statements of Income - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Income Statement [Abstract]
Net sales	$ 1,527,953	$ 1,400,182	$ 1,348,223
Cost of products sold	854,122	784,834	752,731
Gross profit	673,831	615,348	595,492
Selling, general and administrative	338,872	332,862	290,334
Research and development	57,012	57,793	58,268
Restructuring charges (Note 3)	7,965	16,433	27,381
Currency exchange losses, net	10,255	216	8,578
Product liability expense (Note 20)	20,590	185,264	39,036
Operating income	239,137	22,780	171,895
Interest expense	21,660	10,758	9,432
Other income, net (Note 16)	(21,056)	(11,582)	(5,684)
Total other expense (income), net	604	(824)	3,748
Income before income taxes	238,533	23,604	168,147
Provision for income taxes (Note 10)	58,903	1,816	43,009
Net income	179,630	21,788	125,138
Net income attributable to noncontrolling interests	0	(448)	(1,061)
Net income attributable to MSA Safety Incorporated	$ 179,630	$ 21,340	$ 124,077
Earnings per share attributable to MSA Safety Incorporated common shareholders (Note 9):
Basic (in dollars per share)	$ 4.58	$ 0.54	$ 3.19
Diluted (in dollars per share)	4.56	0.54	3.15
Dividends per common share (in dollars per share)	$ 1.82	$ 1.75	$ 1.71

Consolidated Statements of Comp

Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Statement of Comprehensive Income [Abstract]
Net income	$ 179,630	$ 21,788	$ 125,138
Other comprehensive (loss) income, net of tax:
Foreign currency translation adjustments (Note 6)	(19,453)	(25,354)	22,260
Pension and post-retirement plan actuarial gains, net of tax (Note 6)	6,961	58,256	9,296
Unrealized gains (losses) on available-for-sale securities (Note 6)	3	(4)	(7)
Reclassifications from accumulated other comprehensive loss into net income (Note 6)	2,912	267	216
Total other comprehensive (loss) income, net of tax	(9,577)	33,165	31,765
Comprehensive income	170,053	54,953	156,903
Comprehensive income attributable to noncontrolling interests	0	(356)	(1,220)
Comprehensive income attributable to MSA Safety Incorporated	$ 170,053	$ 54,597	$ 155,683

Consolidated Balance Sheets

Consolidated Balance Sheets - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Assets
Cash and cash equivalents	$ 162,902	$ 140,895
Trade receivables, less allowance for credit loss of $6,769 and $5,789	297,028	254,187
Inventories (Note 4)	338,316	280,617
Investments, short-term (Note 19)	9,905	48,974
Prepaid income taxes	21,700	21,235
Notes receivable, insurance companies (Note 20)	5,931	3,914
Prepaid expenses and other current assets	44,344	42,982
Total current assets	880,126	792,804
Property, plant and equipment, net (Note 5)	207,552	207,793
Operating lease right-of-use assets, net (Note 17)	44,142	50,178
Prepaid pension cost (Note 15)	141,643	163,283
Deferred tax assets (Note 10)	25,490	35,257
Goodwill (Note 13)	620,622	636,858
Intangible assets, net (Note 13)	281,853	306,948
Notes receivable, insurance companies, noncurrent (Note 20)	38,695	44,626
Insurance receivable (Note 20) and other noncurrent assets	136,853	158,649
Total assets	2,376,976	2,396,396
Liabilities
Notes payable and current portion of long-term debt (Note 12)	7,387	0
Accounts payable	112,532	106,780
Employees’ compensation	45,077	49,884
Insurance and product liability (Note 20)	73,898	55,125
Income taxes payable (Note 10)	6,149	5,366
Accrued restructuring (Note 3) and other current liabilities	100,822	113,451
Total current liabilities	345,865	330,606
Long-term debt, net (Note 12)	565,445	597,651
Pensions and other employee benefits (Note 15)	137,810	189,973
Noncurrent operating lease liabilities (Note 17)	35,345	40,706
Deferred tax liabilities (Note 10)	31,881	33,337
Product liability (Note 20) and other noncurrent liabilities	336,889	369,735
Total liabilities	1,453,235	1,562,008
Commitments and contingencies (Note 20)
Shareholders' Equity
Preferred stock, 4.5% cumulative, $50 par value (Note 7)	3,569	3,569
Common stock, no par value (180,000,000 shares authorized; 62,081,391 shares issued; 39,213,064 and 39,276,518 shares outstanding at December 31, 2022 and 2021, respectively)	281,980	260,121
Treasury shares, at cost (Note 7)	(361,438)	(330,376)
Accumulated other comprehensive loss (Note 6)	(158,717)	(149,140)
Retained earnings	1,158,347	1,050,214
Total shareholders’ equity	923,741	834,388
Total liabilities and shareholders’ equity	$ 2,376,976	$ 2,396,396

Consolidated Balance Sheets (Pa

Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021
Statement of Financial Position [Abstract]
Allowance for credit loss	$ 6,769	$ 5,789
Cumulative preferred nonvoting stock (as a percent)	4.50%	4.50%
Preferred stock, par value (in dollars per share)	$ 50,000	$ 50,000
Common stock, shares authorized (in shares)	180,000,000	180,000,000
Common stock, shares issued (in shares)	62,081,391	62,081,391
Common stock, shares outstanding (in shares)	39,213,064	39,276,518

Consolidated Statements of Cash

Consolidated Statements of Cash Flows - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Operating Activities
Net income	$ 179,630	$ 21,788	$ 125,138
Depreciation and amortization	56,317	50,317	39,674
Stock-based compensation (Note 11)	19,650	18,908	6,920
Pension (income) expense (Note 15) and other charges	(11,499)	2,448	10,082
Deferred income tax benefit (Note 10)	5,171	(38,850)	(2,254)
Loss on asset write-down and dispositions, net	6,290	788	236
Pension contributions (Note 15)	(5,032)	(5,543)	(5,596)
Currency exchange losses, net (Note 6)	10,255	216	8,578
Product liability expense (Note 20)	20,590	185,264	39,036
Collections on insurance receivable and notes receivable, insurance companies (Note 20)	9,516	15,443	10,853
Product liability payments (Note 20)	(36,755)	(39,548)	(23,727)
Changes in:
Trade receivables	(38,587)	4,374	7,677
Inventories (Note 4)	(67,366)	(17,827)	(13,645)
Accounts payable	7,585	13,299	(3,069)
Other current assets and liabilities	(1,795)	823	7,749
Other noncurrent assets and liabilities	3,485	(12,755)	(1,097)
Cash Flow From Operating Activities	157,455	199,145	206,555
Investing Activities
Capital expenditures	(42,553)	(43,837)	(48,905)
Purchase of short-term investments (Note 19)	(79,542)	(133,913)	(199,318)
Proceeds from maturities of short-term investments (Note 19)	119,000	160,000	175,000
Acquisitions, net of cash acquired (Note 14)	0	(392,437)	0
Property disposals and other investing	(1,389)	(5,286)	454
Cash Flow Used In Investing Activities	(4,484)	(415,473)	(72,769)
Financing Activities
Payments on long-term debt (Note 12)	(1,023,000)	(1,346,557)	(1,031,000)
Proceeds from long-term debt (Note 12)	1,010,000	1,639,733	987,000
Debt issuance costs	0	(2,106)	0
Cash dividends paid	(71,497)	(68,586)	(66,578)
Acquisition of noncontrolling interests in consolidated subsidiaries (Note 14)	0	(13,381)	0
Distribution to noncontrolling interests (Note 14)	0	(5,632)	0
Company stock purchases (Note 7)	(34,394)	(6,171)	(29,144)
Exercise of stock options (Note 7)	4,650	5,770	12,446
Employee stock purchase plan (Note 7)	891	855	747
Cash Flow (Used In) Provided by Financing Activities	(113,350)	203,925	(126,529)
Effect of Exchange Rate on Cash, Cash Equivalents, Restricted Cash, and Restricted Cash Equivalents, Continuing Operations	(16,631)	(7,193)	1,234
Increase (decrease) in cash, cash equivalents and restricted cash	22,990	(19,596)	8,491
Beginning cash, cash equivalents and restricted cash	141,438	161,034	152,543
Ending cash, cash equivalents and restricted cash	164,428	141,438	161,034
Supplemental cash flow information:
Cash and cash equivalents	162,902	140,895	160,672
Restricted cash included in prepaid expenses and other current assets	1,526	543	362
Total cash, cash equivalents and restricted cash	164,428	141,438	161,034
Interest paid in cash	20,740	9,288	9,856
Income tax paid in cash	$ 60,491	$ 45,556	$ 61,072

Consolidated Statements of Chan

Consolidated Statements of Changes in Retained Earnings, Accumulated Other Comprehensive Loss and Noncontrolling Interests - USD ($) $ in Thousands	3 Months Ended				12 Months Ended
	Dec. 31, 2022	Mar. 31, 2022	Dec. 31, 2021	Mar. 31, 2021	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Balance at beginning of period		$ 834,388			$ 834,388
Net income	$ 51,489	35,542	$ (61,476)	$ 36,450	179,630	$ 21,340	$ 124,077
Pension and post-retirement plan adjustments, net of tax					6,961	58,256	9,296
Unrecognized net losses on available-for-sale securities (Note 19)							(7)
(Income) loss attributable to noncontrolling interests					0	(448)	(1,061)
Preferred stock dividends					(41)	(41)	(41)
Balance at end of period	923,741		834,388		923,741	834,388
Retained Earnings
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Balance at beginning of period		1,050,214		1,103,092	1,050,214	1,103,092	1,045,593
Net income					179,630	21,788	125,138
(Income) loss attributable to noncontrolling interests						(448)	(1,061)
Common dividends					(71,456)	(68,545)	(66,537)
Preferred stock dividends					(41)	(41)	(41)
Distributions to noncontrolling interests (Note 14)						(5,632)
Balance at end of period	1,158,347		1,050,214		1,158,347	1,050,214	1,103,092
Accumulated Other Comprehensive Loss
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Balance at beginning of period		(149,140)		(182,397)	(149,140)	(182,397)	(214,003)
Foreign currency translation adjustments					(19,453)	(25,354)	22,260
Pension and post-retirement plan adjustments, net of tax					6,961	58,256	9,296
Unrecognized net losses on available-for-sale securities (Note 19)					3	(4)
Reclassification of currency translation from accumulated other comprehensive loss into net income (Note 6)					2,912	267	216
(Income) loss attributable to noncontrolling interests						92	(159)
Balance at end of period	(158,717)		(149,140)		(158,717)	(149,140)	(182,397)
Noncontrolling Interests
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Balance at beginning of period		$ 0		$ 7,993	0	7,993	6,773
(Income) loss attributable to noncontrolling interests						356	1,220
Share repurchase program						(8,349)
Balance at end of period	$ 0		$ 0		$ 0	$ 0	$ 7,993

Consolidated Statements of Ch_2

Consolidated Statements of Changes in Retained Earnings, Accumulated Other Comprehensive Loss and Noncontrolling Interests (Parenthetical) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Statement of Stockholders' Equity [Abstract]
Common dividends (in dollars per share)	$ 1.82	$ 1.75	$ 1.71
Tax reclassification adjustment	$ (2,570)	$ (18,564)	$ (2,245)
Preferred dividends (in dollars per share)	$ 0.5625	$ 0.5625	$ 0.5625

Significant Accounting Policies

Significant Accounting Policies	12 Months Ended
	Dec. 31, 2022
Accounting Policies [Abstract]
Significant Accounting Policies	Significant Accounting Policies General Information and Basis of Presentation— The consolidated financial statements of MSA Safety Incorporated ("MSA" or "the Company") are prepared in conformity with accounting principles generally accepted in the United States of America ("U.S. GAAP") and require management to make certain judgments, estimates, and assumptions. These may affect the reported amounts of assets and liabilities and the disclosure of contingent assets and liabilities at the date of the consolidated financial statements. They also may affect the reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates upon subsequent resolution of identified matters. Principles of Consolidation— The consolidated financial statements include the accounts of the Company and all subsidiaries. Intercompany accounts and transactions are eliminated. Noncontrolling Interests— Noncontrolling interests reflect noncontrolling shareholders’ investments in certain consolidated subsidiaries and their proportionate share of the income and accumulated other comprehensive loss of those subsidiaries. During July 2021, the Company purchased the remaining noncontrolling interests in MSA (China) Safety Equipment Co., Ltd. See Note 14—Acquisitions for further detail. Currency Translation— The functional currency of all significant non-U.S. subsidiaries is the local country currency. Assets and liabilities of these operations are translated at year-end exchange rates. Income statement accounts are translated using the average exchange rates for the reporting period. Translation adjustments for these subsidiaries are reported as a component of shareholders’ equity and are not included in net income. Foreign currency transaction gains and losses are included in net income for the reporting period. Cash Equivalents— Cash equivalents include temporary deposits with financial institutions and highly liquid investments with original maturities of 90 days or less. Highly liquid investments consist of money market funds which were $1.9 million and $8.7 million at December 31, 2022 and 2021, respectively. These funds are valued at net asset value (“NAV”). These funds are required to price and transact at a NAV per share that fluctuates based upon the pricing of the underlying portfolio of securities. This requirement may impact the value of these fund shares. Restricted Cash— Restricted cash, which is designated for use other than current operations, is included in prepaid expenses and other current assets in the Consolidated Balance Sheets. Restricted cash balances were $1.5 million and $0.5 million at December 31, 2022 and 2021, respectively. These balances were used to support letter of credit balances. Inventories— Inventories are stated at the lower of cost and net realizable value, which approximates current replacement cost. Cost is determined using the FIFO method. It is the Company's general policy to write-down any inventory balance in excess of the last 24 months of consumption and any inventory identified as obsolete. Investment securities — The Company’s investment securities, primarily consisting of fixed income securities, are classified as available-for-sale. The securities are recorded at fair market value and included in “Investments, short-term” in the accompanying Consolidated Balance Sheets with changes in fair market value recorded in other comprehensive income, net of tax. The purchases and sales of these investments are classified as investing activities in the Consolidated Statements of Cash Flows. Property and Depreciation— Property is recorded at cost. Depreciation is computed primarily using the straight-line method over the estimated useful lives of the assets, generally as follows: buildings 20 to 40 years, and machinery and equipment 3 to 10 years. Expenditures for significant renewals and improvements are capitalized. Ordinary repairs and maintenance are expensed as incurred. Gains or losses on property dispositions are included in other (income) expense, net and the cost and related accumulated depreciation are removed from the accounts. Depreciation expense for the years ended December 31, 2022, 2021 and 2020 was $36.7 million, $33.0 million and $27.7 million, respectively. Properties, plant, and equipment are reviewed for impairment whenever events or changes in circumstances indicate that the carrying amount of such assets or asset groups may not be recoverable. Software Development Costs— Software development costs are costs incurred to create, enhance and deploy the Company’s broad range of wireless technology and cloud-based computing safety services. Software development costs, other than software development costs qualifying for capitalization, are expensed as incurred. Costs of computer software developed or obtained for internal use that are incurred in the preliminary project and post implementation stages are expensed as incurred. Certain costs incurred during the application and development stage, which primarily include compensation and related expenses, are capitalized. Additionally, costs of upgrades and enhancements are capitalized when it is probable that the upgrades and enhancements will result in added functionality. During 2022, 2021 and 2020, respectively, there was approximately $8.7 million, $8.1 million and $8.2 million of software development costs capitalized. The Company has unamortized computer software development costs of $16.5 million and $15.7 million as of December 31, 2022 and 2021, respectively, included in property, plant and equipment, net. Capitalized costs are amortized through cost of products sold using the straight-line method over the estimated useful life, which is normally three years, beginning in the period in which the software is ready for its intended use or when the upgrade or enhancement is deployed. Software development cost depreciation expense was $7.9 million, $4.9 million and $1.5 million during the years ended December 31, 2022, 2021 and 2020, respectively. Lessee Arrangements — At the inception of our contracts, we determine if the contract is or contains a lease. A contract is or contains a lease if it conveys the right to control the use of an identified asset for a period of time in exchange for consideration. Right-of-use assets and operating lease liabilities are recognized based on the present value of lease payments over the lease term at commencement. We use our incremental borrowing rate ("IBR") at the recognition date in determining the present value of future payments for leases that do not have a readily determinable implicit rate. Our IBR reflects a fully secured rate based on our credit rating, taking into consideration the repayment timing of the lease and any impacts due to the economic environment in which the lease operates. Our lease payments are largely fixed. Variable lease payments that depend on an index or a rate are included in the lease payments and are measured using the prevailing index or rate at the measurement date, with differences between the calculated lease payment and the actual lease payment being expensed in the period of the change. Other variable lease payments, including utilities, consumption and common area maintenance as well as repairs, maintenance and mileage overages on vehicles, are expensed during the period incurred. A majority of our real estate leases include options to extend the lease and options to early terminate the lease. Leases with an early termination option generally involve a termination payment. If we are reasonably certain to exercise an option to extend a lease, the extension period is included as part of the right-of-use asset and the lease liability. Some of our leases contain residual value guarantees. These are guarantees made to the lessor that the value of an underlying asset returned to the lessor at the end of a lease will be at least a specified amount. Our leases do not contain restrictions or covenants that restrict us from incurring other financial obligations. For our leases, we have elected to not apply the recognition requirements to leases of less than twelve months. These leases are expensed on a straight-line basis and are not included within the Company's operating lease asset or liability. Lease right-of-use assets and liabilities are recognized based on the present value of the fixed future lease payments over the lease term. Operating leases are included in Operating lease right-of-use assets, net, Accrued restructuring and other current liabilities, and Noncurrent operating lease liabilities in our Consolidated Balance Sheets. Finance leases are included in Property, plant and equipment, net, Accrued restructuring and other current liabilities, and Product liability and other noncurrent liabilities in our Consolidated Balance Sheets. Lease expense for all operating leases is classified in Cost of products sold or Selling, general and administrative expense in the Consolidated Statements of Income. For finance leases, the amortization of the right-of-use asset is included in depreciation and amortization, and the interest is included in interest expense. Lessor Arrangements — The Company derives a portion of its revenue from various leasing arrangements where the Company is the lessor, primarily fire service contracts entered into by Bristol which was acquired in January 2021 (Note 14). Such arrangements provide for monthly payments covering equipment provided, maintenance and interest. These arrangements meet the criteria to be accounted for as sales-type leases under Accounting Standards Codification ("ASC") 842 and contain both lease and non-lease components. For a component to be separate, the customer would be able to benefit from the right of use of the component separately or with other resources readily available to the customer and the right of the use is not highly dependent or highly interrelated with the other rights to use the other underlying assets or components. Revenue from equipment provided is considered a lease component and recognized with point in time revenue recognition upon lease commencement. Upon the recognition of such revenue, an asset is established for the investment in sales-type leases. Maintenance revenue, which is considered a non-lease component, and interest are recognized monthly over the lease term. Lease revenues and interest earned by the Company, included in the Consolidated Statements of Income, were not material to any of the years ended December 31, 2022, 2021 and 2020. Net investment in sales-type leases of $5.7 million and $19.4 million were included in Prepaid expenses and other current assets and Insurance receivable and other noncurrent assets, respectively, in the Consolidated Balance Sheets as of December 31, 2022. The portion in Insurance receivable and other noncurrent assets at December 31, 2022 is expected to be collected over the next seven years. Goodwill and Other Intangible Assets— Intangible assets with a finite useful life are amortized on a straight-line basis over their useful lives. Indefinite lived intangible assets are assessed for possible impairment annually on October 1st or whenever circumstances change such that the recorded value of the asset may not be recoverable. We performed a quantitative assessment of the indefinite lived trade name intangible asset as outlined in ASC 350 by comparing the estimated fair value of the trade name intangible asset to its carrying value. We estimate the fair value using the relief from royalty income approach. A number of assumptions and estimates are involved in the application of the relief from royalty model, including sales volumes and prices, royalty rates and tax rates. Forecasts are based on sales generated by the underlying trade name assets and are generally based on approved business unit operating plans for the early years and historical relationships in later years. Based on these assessments, no impairments were identified during the years ended December 31, 2022, 2021 or 2020. Goodwill is not amortized, but is subject to impairment assessments. On October 1st of each year, or more frequently if indicators of impairment exist or if a decision is made to sell a business, we evaluate goodwill for impairment. Judgment is involved in determining if an indicator of impairment has occurred. Such indicators may include a decline in expected cash flows, a significant adverse change in the business climate, unanticipated competition, slower growth rates, or negative developments in equity and credit markets, among others. All goodwill is assigned to and evaluated for impairment at the reporting unit level, which is defined as an operating segment or one level below an operating segment. The evaluation of impairment involves using either a qualitative or quantitative approach as outlined in ASC Topic 350. In 2022, we performed a two-step quantitative test at October 1, 2022. Step 1 of the quantitative testing involves comparing the estimated fair value of each reporting unit to its carrying value. We estimate reporting unit fair value using a weighted average of fair values determined by discounted cash flow ("DCF") and market approach methodologies, as we believe both are important indicators of fair value. A number of assumptions and estimates are involved in the application of the DCF model, including sales volumes and prices, costs to produce, tax rates, capital spending, discount rates, and working capital changes. Cash flow forecasts are generally based on approved reporting unit operating plans for the early years and historical relationships in later years. The market approach methodology measures value through an analysis of peer companies. The analysis entails measuring the multiples of earnings before interest, taxes, depreciation and amortization (" EBITDA") at which peer companies are trading. There has been no impairment of our goodwill during the years ended December 31, 2022, 2021 or 2020. Revenue Recognition— We account for revenue in accordance with ASC Topic 606, Revenue from Contracts with Customers . Revenue from the sale of products is recognized when there is persuasive evidence of an arrangement and control passes to the customer, which generally occurs either when product is shipped to the customer or, in the case of most U.S. distributor customers, when product is delivered to the distributor's delivery site. We establish our shipping terms according to local practice and market characteristics. We do not ship product unless we have an order or other documentation authorizing shipment to our customers. Our payment terms vary by the type and location of our customer and the products offered. The term between invoicing and when payment is due is not significant. Revenue is measured as the amount of consideration we expect to receive in exchange for transferring goods or providing services. Amounts billed and due from our customers are classified as receivables on the Consolidated Balance Sheets. We make appropriate provisions for credit losses which have historically been insignificant in relation to our net sales. Certain contracts with customers, primarily distributor customers, have an element of variable consideration that is estimated when revenue is recognized under the contract to the extent that it is material to the individual contract. Variable consideration includes volume incentive rebates, performance guarantees, price concessions and returns. Rebates are based on achieving a certain level of purchases and other performance criteria that are documented in established distributor programs. These rebates are estimated based on projected sales to the customer and accrued as a reduction of net sales as they are earned by the customer. The rebate accrual is reviewed monthly and adjustments are made as the estimate of projected sales changes. Product returns, including an adjustment for restocking fees if it is material, are estimated based on historical return experience and revenue is adjusted. Sales, value add and other taxes collected with revenue-producing activities and remitted to governmental authorities are excluded from revenue. Depending on the terms of the arrangement, we may defer revenue for which we have a future obligation, including training, extended warranty, maintenance and technical services, until such time that the obligation has been satisfied. We use an observable price, or a cost plus margin approach when one is not available, to determine the stand-alone selling price for separate performance obligations. We have elected to recognize the cost for shipping and handling as an expense when control of the product has passed to the customer. These costs are included within the Cost of products sold line on the Consolidated Statements of Income. Amounts billed to customers for shipping and handling are included in net sales. Product Warranties— Estimated expenses related to product warranties and additional service actions are charged to Cost of products sold in the period in which the related revenue is recognized or when significant product quality issues are identified. Research and Development— Research and development costs are expensed as incurred. Income Taxes— Deferred income taxes are recognized for temporary differences between financial and tax reporting. Deferred tax assets and liabilities are measured using enacted tax rates in effect for the year in which those temporary differences are expected to be recovered or settled. If it is more likely than not that some portion or all of a deferred tax asset will not be realized, a valuation allowance is recognized. We record tax benefits related to uncertain tax positions taken or expected to be taken on a tax return when such benefits meet a more likely than not threshold. We recognize interest related to unrecognized tax benefits in interest expense and penalties in operating expenses. Deferred taxes are booked for available cash in excess of working capital for non-U.S. subsidiaries as these earnings are not considered to be permanently reinvested. Stock-Based Compensation— We recognize expense for employee and non-employee director stock-based compensation based on the grant date fair value of the awards. Except for retirement-eligible participants, for whom there is no requisite service period, this expense is recognized ratably over the requisite service periods following the date of grant. For retirement-eligible participants, this expense is recognized over an accelerated period of at least one year. Derivative Instruments— We may use derivative instruments from time to time to minimize the effects of changes in currency exchange rates. We do not enter into derivative transactions for speculative purposes and do not hold derivative instruments for trading purposes. Changes in the fair value of derivative instruments designated as fair value hedges are recorded in the balance sheet as adjustments to the underlying hedged asset or liability. Changes in the fair value of derivative instruments that do not qualify for hedge accounting treatment are recognized in the Consolidated Statements of Income and Consolidated Statements of Cash Flows as Currency exchange losses, net in the current period. Commitments and Contingencies— For asserted claims and assessments, liabilities are recorded when a loss is deemed to be probable and the amount of the loss is reasonably estimable. Management assesses the probability of an unfavorable outcome with respect to asserted claims or assessments based on many factors such as the nature of the matter, available defenses and case strategy, progress of the matter, views and opinions of legal counsel and other advisors, applicability and success of appeals processes, and the outcome of similar historical matters, among others. Once an unfavorable outcome is assessed to be probable, management evaluates estimates of the potential loss, and the most reasonable loss estimate is recorded (or, if the estimate of the loss is a range, and no amount within the range is considered to be a better estimate than any other amount, the minimum amount in the range is recorded). If a loss is deemed to be reasonably possible but less than probable and/or such loss cannot be reasonably estimated, then the matter is disclosed and no liability is recorded. With respect to unasserted claims or assessments, management first determines whether it is probable that a claim or assessment may be asserted and then, if so, the degree of probability of an unfavorable outcome. If an unfavorable outcome is probable, management assesses whether the amount of potential loss can be reasonably estimated and, if so, accrues the most reasonable estimate of the loss (or, if the estimate of the loss is a range, and no amount within the range is considered to be a better estimate than any other amount, the minimum amount in the range is recorded). If an unfavorable outcome is reasonably possible but less than probable, or the amount of loss cannot be reasonably estimated, then the matter is disclosed and no liability is recorded. Legal matters are reviewed on a continuous basis to determine if there has been a change in management’s judgment regarding the likelihood and/or estimate of a potential loss. Please refer to Note 20 — Contingencies for further details on product liability related matters.

Cash and Cash Equivalents

Cash and Cash Equivalents	12 Months Ended
	Dec. 31, 2022
Cash and Cash Equivalents [Abstract]
Cash and Cash Equivalents	Cash and Cash Equivalents Several of the Company's affiliates participate in a notional cash pooling arrangement to manage global liquidity requirements. As part of a master netting arrangement, the participants combine their cash balances in pooling accounts at the same financial institution with the ability to offset bank overdrafts of one participant against positive cash account balances held by another participant. Under the terms of the master netting arrangement, the financial institution has the right, ability and intent to offset a positive balance in one account against an overdrawn amount in another account. Amounts in each of the accounts are unencumbered and unrestricted with respect to use. As such, the net cash balance related to this pooling arrangement is included in Cash and cash equivalents in the Consolidated Balance Sheets. The Company's net cash pool position consisted of the following: (In thousands) December 31, 2022 Gross cash pool position $ 72,271 Less: cash pool borrowings (65,102) Net cash pool position $ 7,169

Restructuring Charges

Restructuring Charges	12 Months Ended
	Dec. 31, 2022
Restructuring and Related Activities [Abstract]
Restructuring Charges	Restructuring Charges During the years ended December 31, 2022, 2021 and 2020, we recorded restructuring charges of $8.0 million, $16.4 million and $27.4 million, respectively. These charges were primarily related to our ongoing initiatives to drive profitable growth and right size our operations. Americas segment restructuring charges of $2.3 million during the year ended December 31, 2022, were related to various optimization activities. International segment restructuring charges of $5.1 million during the year ended December 31, 2022, were primarily related to the implementation of our new European Shared Service Center in Warsaw, Poland. Corporate segment restructuring charges of $0.6 million during the year ended December 31, 2022, were primarily related to programs to realign the organization and adjust our operations in response to current business conditions. A total of 151 positions were eliminated in 2022. There were 24 positions eliminated in the Americas segment, 123 in the International segment and 4 in the Corporate segment. Americas segment restructuring charges of $4.6 million during the year ended December 31, 2021, were primarily related to integration related activities and costs associated with our global Fixed Gas & Flame Detection manufacturing footprint optimization as well as programs to adjust our operations in response to current business conditions. International segment restructuring charges of $11.2 million during the year ended December 31, 2021, were primarily related to our initiatives to drive profitable growth and right size our operations. Corporate segment restructuring charges of $0.6 million during the year ended December 31, 2021, were primarily related to programs to adjust our operations in response to current business conditions. A total of 143 positions were eliminated in 2021. There were 66 positions eliminated in the Americas segment, 71 in the International segment, and 6 in the Corporate segment. Americas segment restructuring charges of $4.7 million during the year ended December 31, 2020, were related to costs associated with our global Fixed Gas & Flame Detection manufacturing footprint optimization as well as programs to adjust our operations in response to current business conditions. International segment restructuring charges of $21.9 million during the year ended December 31, 2020, were primarily related to severance costs for staff reductions and footprint optimization associated with our ongoing initiatives to drive profitable growth. Corporate segment restructuring charges of $0.8 million during the year ended December 31, 2020, were primarily related to programs to adjust our operations in response to current business conditions. A total of 121 positions were eliminated in 2020. There were 42 positions eliminated in the Americas segment, 76 in the International segment, and 3 in the Corporate segment. Activity and reserve balances for restructuring charges by segment were as follows: (in millions) Americas International Corporate Total Reserve balances at January 1, 2020 $ 0.3 $ 5.9 $ — $ 6.2 Restructuring charges 4.7 21.9 0.8 27.4 Currency translation and other adjustments (0.1) 0.1 — — Cash payments / utilization (2.1) (8.6) (0.4) (11.1) Reserve balances at December 31, 2020 $ 2.8 $ 19.3 $ 0.4 $ 22.5 Restructuring charges 4.6 11.2 0.6 16.4 Currency translation and other adjustments (0.1) (0.2) — (0.3) Cash payments / utilization (4.0) (12.9) (0.7) (17.6) Reserve balances at December 31, 2021 $ 3.3 $ 17.4 $ 0.3 $ 21.0 Restructuring charges 2.3 5.1 0.6 8.0 Currency translation and other adjustments 0.1 (1.3) — (1.2) Cash payments / utilization (4.0) (8.4) (0.4) (12.8) Reserve balances at December 31, 2022 $ 1.7 $ 12.8 $ 0.5 $ 15.0

Inventories

Inventories	12 Months Ended
	Dec. 31, 2022
Inventory Disclosure [Abstract]
Inventories	Inventories The following table sets forth the components of inventory: December 31, (In thousands) 2022 2021 Finished products $ 97,142 $ 87,657 Work in process 16,360 6,534 Raw materials and supplies 224,814 186,426 Total inventories $ 338,316 $ 280,617

Property, Plant, and Equipment

Property, Plant, and Equipment	12 Months Ended
	Dec. 31, 2022
Property, Plant and Equipment [Abstract]
Property, Plant, and Equipment	Property, Plant, and Equipment The following table sets forth the components of property, plant and equipment: December 31, (In thousands) 2022 2021 Land $ 4,884 $ 5,131 Buildings 138,618 136,272 Machinery and equipment 466,394 435,652 Construction in progress 22,097 36,552 Total 631,993 613,607 Less accumulated depreciation (424,441) (405,814) Property, plant and equipment, net $ 207,552 $ 207,793

Reclassifications Out of Accumu

Reclassifications Out of Accumulated Other Comprehensive Loss	12 Months Ended
	Dec. 31, 2022
Equity [Abstract]
Reclassifications Out of Accumulated Other Comprehensive Loss	Reclassifications Out of Accumulated Other Comprehensive Loss MSA Safety Incorporated Noncontrolling Interests (In thousands) 2022 2021 2020 2022 2021 2020 Pension and other post-retirement benefits (a) Balance at beginning of period $ (57,296) $ (115,552) $ (124,848) $ — $ — $ — Unrecognized net actuarial (losses) gains (2,862) 54,384 (6,322) — — — Tax benefit (expense) 703 (12,804) 1,997 — — — Total other comprehensive (loss) gain before reclassifications, net of tax (2,159) 41,580 (4,325) — — — Amounts reclassified from accumulated other comprehensive loss into net income: Amortization of prior service credit (Note 15) (199) (95) (216) — — — Recognized net actuarial losses (Note 15) 12,592 22,531 18,079 — — — Tax benefit (3,273) (5,760) (4,242) — — — Total amount reclassified from accumulated other comprehensive loss, net of tax, into net income 9,120 16,676 13,621 — — — Total other comprehensive income $ 6,961 $ 58,256 $ 9,296 $ — $ — $ — Balance at end of period $ (50,335) $ (57,296) $ (115,552) $ — $ — $ — Available-for-sale securities Balance at beginning of period $ (5) $ (1) $ 6 $ — $ — $ — Unrealized gain (loss) on available-for-sale securities (Note 19) 3 (4) (7) — — — Balance at end of period $ (2) $ (5) $ (1) $ — $ — $ — Foreign currency translation Balance at beginning of period $ (91,839) $ (66,844) $ (89,161) $ — $ 372 $ 213 Reclassification from accumulated other comprehensive loss into net income (b) 2,912 (c) 267 216 — — — Acquisition of noncontrolling interests in consolidated subsidiaries — — — — (280) — Foreign currency translation adjustments (19,453) (25,262) 22,101 — (92) 159 Balance at end of period $ (108,380) $ (91,839) $ (66,844) $ — $ — $ 372 (a) Reclassifications out of accumulated other comprehensive loss and into net income are included in the computation of net periodic pension and other post-retirement benefit costs (refer to Note 15—Pensions and Other Post-retirement Benefits). (b) Included in Currency exchange losses, net, within the Consolidated Statements of Income. (c) Reclassifications out of accumulated other comprehensive loss and into net income relate primarily to the approval of our plan to close a foreign subsidiary.

Capital Stock

Capital Stock	12 Months Ended
	Dec. 31, 2022
Equity [Abstract]
Capital Stock	Capital Stock Preferred Stock - The Company has authorized 100,000 shares of $50 par value 4.5% cumulative preferred nonvoting stock which is callable at $52.50. There were 71,340 shares issued and 52,998 shares held in treasury at both December 31, 2022 and 2021. The Treasury shares at cost line of the Consolidated Balance Sheets includes $1.8 million related to preferred stock. There were no shares of preferred stock purchased and subsequently held in treasury during the years ended December 31, 2022, or 2021. The Company has also authorized 1,000,000 shares of $10 par value second cumulative preferred voting stock. No shares have been issued as of December 31, 2022 or 2021. Common Stock - The Company has authorized 180,000,000 shares of no par value common stock. There were 62,081,391 shares issued as of December 31, 2022 and December 31, 2021. There were 39,213,064 and 39,276,518 shares outstanding at December 31, 2022 and 2021, respectively. Treasury Shares - The Company's stock repurchase program authorizes up to $100.0 million to repurchase MSA common stock in the open market and in private transactions. The share repurchase program has no expiration date. The maximum number of shares that may be purchased is calculated based on the dollars remaining under the program and the respective month-end closing share price. Under the program, there were 251,408 shares repurchased during 2022, no shares repurchased during 2021 and 175,000 shares repurchased during 2020. We do not have any other share repurchase programs. There were 22,868,327 and 22,804,873 Treasury shares at December 31, 2022 and 2021, respectively. The Company issues Treasury shares for all stock based benefit plans. Shares are issued from Treasury at the average Treasury share cost on the date of the transaction. There were 219,214 and 246,376 Treasury shares issued for these purposes during the years ended December 31, 2022 and 2021, respectively. Common stock activity is summarized as follows: Shares Dollars (Dollars in thousands) Issued Treasury Common Treasury Balance at January 1, 2020 62,081,391 (23,240,197) $ 229,127 $ (303,566) Restricted stock awards — 55,691 (773) 773 Restricted stock expense — — 7,065 — Restricted stock forfeitures — — (807) — Stock options exercised — 274,672 8,590 3,856 Stock option expense — — 153 — Stock option forfeitures — — (40) — Performance stock issued — 134,824 (1,826) 1,826 Performance stock expense — — 1,305 — Performance stock forfeitures — — (755) — Employee stock purchase plan — 6,494 654 93 Treasury shares purchased — (69,973) — (9,025) Share repurchase program — (175,000) — (20,113) Balances December 31, 2020 62,081,391 (23,013,489) $ 242,693 $ (326,156) Restricted stock awards — 53,934 (762) 762 Restricted stock expense — — 6,562 — Restricted stock forfeitures — — (765) — Stock options exercised — 122,119 4,003 1,767 Stock option expense — — 90 — Stock option forfeitures — — (9) — Performance stock issued — 64,543 (939) 939 Performance stock expense — — 13,227 — Employee stock purchase plan — 5,730 772 83 Treasury shares purchased — (37,710) — (6,171) Acquisition of noncontrolling interests in consolidated subsidiaries — — (4,751) — Balances December 31, 2021 62,081,391 (22,804,873) $ 260,121 $ (328,776) Restricted stock awards — 52,810 (711) 711 Restricted stock expense — — 7,715 — Restricted stock forfeitures — — (1,227) — Stock options exercised — 103,545 3,021 1,629 Stock option expense — — 49 — Performance stock issued — 55,447 (880) 880 Performance stock expense — — 15,843 — Performance stock forfeitures — — (2,730) — Employee stock purchase plan — 7,412 779 112 Treasury shares purchased — (31,260) — (4,021) Share repurchase program — (251,408) — (30,373) Balances December 31, 2022 62,081,391 (22,868,327) $ 281,980 $ (359,838)

Segment Information

Segment Information	12 Months Ended
	Dec. 31, 2022
Segment Reporting [Abstract]
Segment Information	Segment Information We are organized into four geographical operating segments that are based on management responsibilities: Northern North America, Latin America, Europe, Middle East & Africa, and Asia Pacific. The operating segments have been aggregated (based on economic similarities, the nature of their products, end-user markets and methods of distribution) into three reportable segments: Americas, International, and Corporate. The Americas segment is comprised of our operations in North America and Latin America geographies. The International segment is comprised of our operations in all geographies outside of the Americas. Certain global expenses are allocated to each segment in a manner consistent with where the benefits from the expenses are derived. The Company's sales are allocated to each segment based primarily on the country destination of the end-customer. Adjusted operating income (loss), adjusted operating margin, adjusted earnings before interest, taxes, depreciation and amortization (EBITDA) and adjusted EBITDA margin are the measures used by the chief operating decision maker to evaluate segment performance and allocate resources. Adjusted operating income (loss) is defined as operating income excluding restructuring charges, currency exchange gains (losses), product liability expense, acquisition related costs, including acquisition related amortization. Adjusted operating margin is defined as adjusted operating income (loss) divided by segment net sales to external customers. Adjusted EBITDA is defined as adjusted operating income (loss) plus depreciation and amortization. Adjusted EBITDA margin is defined as adjusted EBITDA divided by segment net sales to external customers. The accounting principles applied at the operating segment level in determining operating income (loss) are generally the same as those applied at the consolidated financial statement level. Sales and transfers between operating segments are accounted for at market-based transaction prices and are eliminated in consolidation. Reportable segment information is presented in the following table: (In thousands) Americas International Corporate Reconciling Items (1) Consolidated 2022 Net sales to external customers $ 1,043,238 $ 484,715 $ — $ — $ 1,527,953 Operating income 239,137 Restructuring charges (Note 3) 7,965 Currency exchange losses, net (Note 6) 10,255 Product liability expense (Note 20) 20,590 Acquisition related costs (a) (Note 14) 12,440 Adjusted operating income (loss) 267,392 60,923 (37,928) 290,387 Adjusted operating margin % 25.6 % 12.6 % Depreciation and amortization 34,334 12,256 520 47,110 Adjusted EBITDA 301,726 73,179 (37,408) 337,497 Adjusted EBITDA margin % 28.9 % 15.1 % Noncash items: Pension (income) expense $ (18,368) $ 6,869 $ — $ — $ (11,499) Total Assets 1,660,776 703,444 11,673 1,083 2,376,976 Capital expenditures 33,324 9,229 — — 42,553 2021 Net sales to external customers $ 908,068 $ 492,114 $ — $ — $ 1,400,182 Operating income 22,780 Restructuring charges (Note 3) 16,433 Currency exchange losses, net (Note 6) 216 Product liability expense (Note 20) 185,264 Acquisition related costs (a) (Note 14) 15,884 Adjusted operating income (loss) 202,496 73,279 (35,198) — 240,577 Adjusted operating margin % 22.3 % 14.9 % Depreciation and amortization 31,236 13,718 463 — 45,417 Adjusted EBITDA 233,732 86,997 (34,735) — 285,994 Adjusted EBITDA margin % 25.7 % 17.7 % Noncash items: Pension (income) expense $ (2,916) $ 5,790 $ — $ — $ 2,874 Total Assets 1,661,619 720,257 13,034 1,486 2,396,396 Capital expenditures 25,148 11,408 7,281 — 43,837 2020 Net sales to external customers $ 874,305 $ 473,918 $ — $ — $ 1,348,223 Operating income 171,895 Restructuring charges (Note 3) 27,381 Currency exchange losses, net (Note 6) 8,578 Product liability expense (Note 20) 39,036 Acquisition related costs (a) (Note 14) 717 COVID-19 related costs 757 Adjusted operating income (loss) 205,304 71,140 (28,080) — 248,364 Adjusted operating margin % 23.5 % 15.0 % Depreciation and amortization 26,762 12,521 391 — 39,674 Adjusted EBITDA 232,066 83,661 (27,689) — 288,038 Adjusted EBITDA margin % 26.5 % 17.7 % Noncash items: Pension expense $ 910 $ 8,113 $ — $ — $ 9,023 Total Assets 1,273,302 617,698 29,761 (1,130) 1,919,631 Capital expenditures 43,181 5,724 — — 48,905 (a) Acquisition related costs include advisory, legal, accounting, valuation, and other professional or consulting fees incurred during due diligence and integration. These costs are included in Selling, general and administrative expense in the Consolidated Statements of Income. Acquisition-related costs also include the acquisition related amortization, which is included in Cost of products sold in the Consolidated Statements of Income. (1) Reconciling items consist primarily of intercompany eliminations and items not directly attributable to operating segments. Geographic information on Net sales to external customers, based on country of origin: (In thousands) 2022 2021 2020 United States $ 876,945 $ 746,825 $ 750,315 Other 651,008 653,357 597,908 Total $ 1,527,953 $ 1,400,182 $ 1,348,223 Geographic information on tangible long-lived assets, net, based on country of origin: (In thousands) 2022 2021 2020 United States $ 159,345 $ 155,667 $ 134,234 Other 92,349 102,304 108,837 Total $ 251,694 $ 257,971 $ 243,071 Total Net sales by product group was as follows: 2022 Consolidated Americas International (In thousands) Dollars Percent Dollars Percent Dollars Percent Breathing Apparatus $ 371,176 24% $ 265,558 25% $ 105,618 22% Fixed Gas & Flame Detection (a) 356,075 23% 227,609 22% 128,466 27% Firefighter Helmets & Protective Apparel (b) 207,759 14% 150,869 14% 56,890 12% Portable Gas Detection 173,660 11% 121,934 12% 51,726 11% Industrial Head Protection 163,253 11% 127,485 12% 35,768 7% Fall Protection 110,094 7% 69,225 7% 40,869 8% Other (c) 145,936 10% 80,558 8% 65,378 13% Total $ 1,527,953 100% $ 1,043,238 100% $ 484,715 100% 2021 Consolidated Americas International (In thousands) Dollars Percent Dollars Percent Dollars Percent Breathing Apparatus $ 322,412 23% $ 217,340 24% $ 105,072 21% Fixed Gas & Flame Detection (a) 299,018 21% 182,515 20% 116,503 24% Firefighter Helmets & Protective Apparel (b) 203,914 15% 137,086 15% 66,828 14% Portable Gas Detection 162,761 12% 109,543 12% 53,218 11% Industrial Head Protection 143,601 10% 108,869 12% 34,732 7% Fall Protection 117,731 8% 69,108 8% 48,623 10% Other (c) 150,745 11% 83,607 9% 67,138 13% Total $ 1,400,182 100% $ 908,068 100% $ 492,114 100% 2020 Consolidated Americas International (In thousands) Dollars Percent Dollars Percent Dollars Percent Breathing Apparatus $ 329,179 24% $ 220,650 25% $ 108,529 23% Fixed Gas & Flame Detection 287,414 21% 158,924 18% 128,490 27% Firefighter Helmets & Protective Apparel 162,207 12% 133,653 15% 28,554 6% Portable Gas Detection 142,581 11% 90,545 10% 52,036 11% Industrial Head Protection 125,921 9% 92,075 11% 33,846 7% Fall Protection 103,075 8% 58,060 7% 45,015 10% Other (c) 197,846 15% 120,398 14% 77,448 16% Total $ 1,348,223 100% $ 874,305 100% $ 473,918 100% (a) Fixed Gas & Flame Detection include sales from the Bacharach acquisition from July 1, 2021 onward (Americas and International). (b) Firefighter Helmets & Protective Apparel include sales from the Bristol acquisition from January 25, 2021 onward (International). (c) Other products include sales of Air Purifying Respirators.

Earnings per Share

Earnings per Share	12 Months Ended
	Dec. 31, 2022
Earnings Per Share [Abstract]
Earnings per Share	Earnings per Share Basic earnings per share attributable to MSA Safety Incorporated common shareholders is computed by dividing net income, after the deduction of preferred stock dividends and undistributed earnings allocated to participating securities, by the weighted average number of common shares outstanding during the period. Diluted earnings per share attributable to MSA Safety Incorporated common shareholders assumes the issuance of common stock for all potentially dilutive share equivalents outstanding not classified as participating securities. Participating securities are defined as unvested stock-based payment awards that contain nonforfeitable rights to dividends. Amounts attributable to MSA Safety Incorporated common shareholders: (In thousands, except per share amounts) 2022 2021 2020 Net income $ 179,630 $ 21,340 $ 124,077 Preferred stock dividends (41) (41) (41) Net income available to common equity 179,589 21,299 124,036 Dividends and undistributed earnings allocated to participating securities (30) (24) (84) Net income available to common shareholders $ 179,559 $ 21,275 $ 123,952 Basic weighted-average shares outstanding 39,232 39,173 38,885 Stock options and other stock-based awards 175 276 401 Diluted weighted-average shares outstanding 39,407 39,449 39,286 Antidilutive stock options — — — Earnings per share: Basic $ 4.58 $ 0.54 $ 3.19 Diluted $ 4.56 $ 0.54 $ 3.15

Income Taxes

Income Taxes	12 Months Ended
	Dec. 31, 2022
Income Tax Disclosure [Abstract]
Income Taxes	Income Taxes (In thousands) 2022 2021 2020 Components of income before income taxes U.S. income (loss) $ 170,426 $ (59,746) $ 109,726 Non-U.S. income 68,107 83,350 58,421 Income before income taxes $ 238,533 $ 23,604 $ 168,147 Provision for income taxes Current Federal $ 26,022 $ 13,179 $ 23,587 State 7,708 5,000 4,896 Non-U.S. 20,002 22,487 16,780 Total current provision $ 53,732 $ 40,666 $ 45,263 Deferred Federal $ 7,350 $ (29,631) $ (573) State 862 (7,204) (579) Non-U.S. (3,041) (2,015) (1,102) Total deferred provision (benefit) 5,171 (38,850) (2,254) Provision for income taxes $ 58,903 $ 1,816 $ 43,009 On June 10, 2021 the United Kingdom ("U.K.") Parliament announced royal assent for Bill No. 12, on the Finance Act of 2021. This bill will increase the statutory rate from 19% to 25% in April 2023. The Company recorded this impact on its deferred tax balances in the second quarter of 2021. Reconciliation of the U.S. federal income tax rates to our effective tax rate: 2022 2021 2020 U.S. federal income tax rate 21.0 % 21.0 % 21.0 % State income taxes-U.S. 2.9 % (7.0) % 2.0 % Nondeductible compensation 1.2 % 15.3 % 3.4 % Valuation allowances 0.8 % 7.0 % 0.8 % Foreign exchange on entity closures 0.3 % (0.4) % — % Taxes on non-U.S. income 0.1 % (10.9) % 2.6 % Employee share-based payments (0.8) % (18.3) % (3.9) % Research and development credit (0.4) % (5.3) % (1.2) % Taxes on non-U.S. income - U.S., Canadian & European reorganization — % — % 0.7 % Other (0.4) % 6.3 % 0.2 % Effective income tax rate 24.7 % 7.7 % 25.6 % Components of deferred tax assets and liabilities: December 31, (In thousands) 2022 2021 Deferred tax assets Product liability $ 72,950 $ 71,709 Capitalized research and development 26,988 25,644 Net operating losses and tax credit carryforwards 10,696 9,404 Accrued expenses and other reserves 5,738 4,627 Share-based compensation 4,562 3,619 Other 5,068 4,785 Total deferred tax assets 126,002 119,788 Valuation allowances (10,017) (8,812) Net deferred tax assets 115,985 110,976 Deferred tax liabilities Goodwill and intangibles (80,383) (79,285) Property, plant and equipment (18,735) (17,088) Employee benefits (18,899) (8,985) Inventory — (1,264) Other (4,359) (2,434) Total deferred tax liabilities (122,376) (109,056) Net deferred taxes $ (6,391) $ 1,920 At December 31, 2022, we had net operating loss carryforwards of approximately $49.0 million. All net operating loss carryforwards without a valuation allowance may be carried forward for a period of at least six years. A reconciliation of the change in the tax liability for unrecognized tax benefits for the years ended December 31, 2022 and 2021 is as follows: (In thousands) 2022 2021 Beginning balance $ 4,937 $ 8,092 Adjustments for tax positions related to the current year 100 182 Adjustments for tax positions related to prior years 155 733 Settlements — (3,211) Statute expiration — (859) Ending balance $ 5,192 $ 4,937 The total amount of unrecognized tax benefits, if recognized, would reduce our future effective tax rate. We have recognized tax benefits associated with these liabilities in the amount of $2.7 million and $2.5 million at December 31, 2022 and 2021, respectively. We recognize interest related to unrecognized tax benefits in interest expense and penalties in operating expenses. Our liability for accrued interest and penalties related to uncertain tax positions was $1.1 million and $0.8 million at December 31, 2022 and 2021, respectively. We are subject to regular review and audit by both foreign and domestic tax authorities. While we believe our tax positions will be sustained, the final outcome of tax audits and related litigation may differ materially from the tax amounts recorded in our consolidated financial statements. We file a U.S. federal income tax return along with various state and foreign income tax returns. Examinations of our U.S. federal returns have been completed through 2018. Various state and foreign income tax returns may be subject to tax audits for periods after 2015.

Stock Plans

Stock Plans	12 Months Ended
	Dec. 31, 2022
Share-Based Payment Arrangement [Abstract]
Stock Plans	Stock PlansThe 2016 Management Equity Incentive Plan provides for various forms of stock-based compensation for eligible employees through May 2026 including stock options, restricted stock awards, restricted stock units and performance stock units. The 2017 Non-Employee Directors’ Equity Incentive Plan provides for grants of stock options and restricted stock to non-employee directors through May 2027. Stock options are granted at market prices and expire after ten years. Stock options are exercisable beginning three years after the grant date. Restricted stock and restricted stock units are granted without payment to the Company and generally vest three years after the grant date. Restricted stock and restricted stock units are valued at the market value of the stock on the grant date. Performance stock units with a market condition are valued at an estimated fair value using a Monte Carlo simulation model. The final number of shares to be issued for performance stock units may range from zero to 240% of the target award based on achieving the specified performance targets over the performance period and further range based upon the achieved market metric over the performance period. In general, unvested stock options, restricted stock and performance stock units are forfeited if the participant’s employment with the Company terminates for any reason other than retirement, death or disability. We issue Treasury shares for stock option exercises and grants of restricted stock and performance stock. Please refer to Note 7—Capital Stock for further information regarding stock compensation share issuance. As of December 31, 2022, there were 598,813 and 76,890 shares, respectively, reserved for future grants under the management and non-employee directors’ equity incentive plans. Stock-based compensation expense was as follows: (In thousands) 2022 2021 2020 Restricted stock units $ 6,488 $ 5,797 $ 6,258 Stock options 49 81 113 Performance stock units 13,113 13,030 549 Total stock-compensation expense before income taxes 19,650 18,908 6,920 Income tax benefit 4,814 4,633 1,668 Total stock-compensation expense, net of income tax benefit $ 14,836 $ 14,275 $ 5,252 We did not capitalize any stock-based compensation expense, and all expense is included in Selling, general and administrative expense in the Consolidated Statements of Income. A summary of option activity follows: Shares Weighted Exercisable at Outstanding January 1, 2020 559,656 $ 45.78 Exercised (274,704) 45.31 Forfeited (954) 42.00 Outstanding December 31, 2020 283,998 46.23 281,593 Exercised (122,087) 47.25 Forfeited (210) 43.75 Outstanding December 31, 2021 161,701 45.47 161,347 Exercised (103,545) 44.91 Outstanding December 31, 2022 58,156 $ 46.48 58,156 For various exercise price ranges, characteristics of outstanding and exercisable stock options at December 31, 2022 were as follows: Stock Options Outstanding Range of Exercise Prices Shares Weighted-Average Exercise Price Remaining Life $33.01 – $45.00 33,148 $ 44.50 2.41 $45.01 – $57.93 25,008 49.10 2.21 $33.01 – $57.93 58,156 $ 46.48 2.32 Stock Options Exercisable Range of Exercise Prices Shares Weighted-Average Exercise Price Remaining Life $33.01 – $45.00 33,148 $ 44.50 2.41 $45.01 – $57.93 25,008 49.10 2.21 $33.01 – $57.93 58,156 $ 46.48 2.32 Cash received from the exercise of stock options was $4.7 million, $5.8 million and $12.4 million for the years ended December 31, 2022, 2021 and 2020, respectively. The tax benefit we realized from these exercises was $1.9 million, $4.3 million and $6.4 million for the years ended December 31, 2022, 2021 and 2020, respectively. Stock options become exercisable when they are vested. The aggregate intrinsic value of stock options exercisable and outstanding at December 31, 2022 was $5.7 million. Restricted stock awards and restricted stock units are valued at the market value of the stock on the grant date. A summary of restricted stock unit activity follows: Shares Weighted Average Unvested January 1, 2020 172,701 $ 90.38 Granted 51,468 124.61 Vested (70,399) 81.58 Forfeited (7,579) 106.54 Unvested at December 31, 2020 146,191 105.83 Granted 43,146 167.13 Vested (65,225) 95.43 Forfeited (5,769) 132.54 Unvested at December 31, 2021 118,343 132.62 Granted 87,697 130.28 Vested (51,369) 113.96 Forfeited (8,785) 139.66 Unvested at December 31, 2022 145,886 $ 137.36 A summary of performance stock unit activity follows: Shares Weighted Average Unvested at January 1, 2020 238,035 $ 85.39 Granted 67,479 127.48 Vested (132,036) 73.00 Performance adjustments 33,499 72.36 Forfeited (6,765) 111.60 Unvested at December 31, 2020 200,212 104.69 Granted 52,309 175.59 Vested (64,543) 85.41 Performance adjustments 5,357 88.45 Unvested at December 31, 2021 193,335 129.86 Granted 81,504 142.38 Vested (55,447) 101.38 Performance adjustments (22,147) 99.84 Forfeited (18,485) 147.66 Unvested at December 31, 2022 178,760 $ 146.28 The 2022 performance adjustments above relate primarily to 2019 performance unit awards that were below the performance targets when vested during 2022, including the final number of shares issued, which were 64.2% of the target award based on actual results during the three year performance period. During the years ended December 31, 2022, 2021 and 2020, the total intrinsic value of stock options exercised (the difference between the market price on the date of exercise and the option price paid to exercise the option) was $8.6 million, $13.0 million and $24.6 million, respectively. The fair values of restricted stock vested during the years ended December 31, 2022, 2021 and 2020 were $5.9 million, $6.2 million and $5.7 million, respectively. The fair value of performance stock units vested during the years ended December 31, 2022, 2021 and 2020 was $5.6 million, $5.5 million and $9.6 million, respectively. On December 31, 2022, there was $16.4 million of unrecognized stock-based compensation expense. The weighted average period over which this expense is expected to be recognized was approximately 1.8 years.

Long-Term Debt

Long-Term Debt	12 Months Ended
	Dec. 31, 2022
Debt Disclosure [Abstract]
Long-Term Debt	Long-Term Debt Long-Term Debt December 31, (In thousands) 2022 2021 2016 Senior Notes payable through 2031, 3.40%, net of debt issuance costs $ 66,379 $ 74,203 2021 Senior Notes payable through 2036, 2.69%, net of debt issuance costs 99,711 99,694 2021 Senior Notes payable through 2036, 2.69%, net of debt issuance costs 99,711 99,694 Senior revolving credit facility maturing in 2026, net of debt issuance costs 307,031 324,060 Total 572,832 597,651 Amounts due within one year 7,387 — Long-term debt, net of debt issuance costs $ 565,445 $ 597,651 On May 24, 2021, the Company entered into a Fourth Amended and Restated Credit Agreement (the “Revolving Credit Facility" or "Facility”) that extended its term through May 24, 2026 and increased the capacity to $900.0 million. Under the amended agreement, the Company may elect either a Base rate of interest (“BASE”) or an interest rate based on the London Interbank Offered Rate (“LIBOR”). The BASE is a daily fluctuating per annum rate equal to the highest of (i) 0.00%, (ii) the Prime Rate, (iii) the Federal Funds Open Rate plus one half of one percent (0.5%), (iv) the Overnight Bank Funding Rate, plus one half of one percent (0.5%), or (v) the Daily LIBOR Rate plus one percent (1.00%). The Company pays a credit spread of 0 to 175 basis points based on the Company’s net EBITDA leverage ratio and elected rate (BASE or LIBOR). The Company has a weighted average revolver interest rate of 5.13% as of December 31, 2022. At December 31, 2022, $589.9 million of the existing $900.0 million senior revolving credit facility was unused, including letters of credit issued under the facility. The facility also provides an accordion feature that allows the Company to access an additional $400.0 million of capacity pending approval by MSA’s board of directors and from the bank group. On July 1, 2021, the Company entered into a Third Amended and Restated Multi-Currency Note Purchase and Private Shelf Agreement (the “Prudential Note Agreement”) with PGIM, Inc. (“Prudential”). The Prudential Note Agreement provided for (i) the issuance of $100.0 million of 2.69% Series C Senior Notes due July 1, 2036 and (ii) the establishment of an uncommitted note issuance facility whereby the Company may request, subject to Prudential’s acceptance in its sole discretion, the issuance of up to $335.0 million aggregate principal amount of senior unsecured notes. As of December 31, 2022, the Company had issued £54.9 million (approximately $66.5 million at December 31, 2022) of 3.4% Series B Senior Notes due January 22, 2031. On July 1, 2021, the Company entered into a Second Amended and Restated Master Note Facility (the “NYL Note Facility”) with NYL Investors. The NYL Note Facility provided for (i) the issuance of $100.0 million of 2.69% Series A Senior Notes due July 1, 2036 and (ii) the establishment of an uncommitted note issuance facility whereby the Company may request, subject to NYL Investors’ acceptance in its sole discretion, the issuance of up to $200.0 million aggregate principal amount of senior unsecured notes. The Revolving Credit Facility, Prudential Note Agreement and NYL Note Facility require the Company to comply with specified financial covenants, including a requirement to maintain a minimum fixed charges coverage ratio of not less than 1.50 to 1.00 and a consolidated leverage ratio not to exceed 3.50 to 1.00; except during an acquisition period, defined as four consecutive fiscal quarters beginning with the quarter of acquisition, in which case the consolidated net leverage ratio shall not exceed 4.00 to 1.00; in each case calculated on the basis of the trailing four fiscal quarters. In addition, the agreements contain negative covenants limiting the ability of the Company and its subsidiaries to incur additional indebtedness or issue guarantees, create or incur liens, make loans and investments, make acquisitions, transfer or sell assets, enter into transactions with affiliated parties, make changes in its organizational documents that are materially adverse to lenders or modify the nature of the Company's or its subsidiaries' business. All credit facilities exclude the subsidiary, Mine Safety Appliances Company, LLC. On July 1, 2021, the Company acquired Bacharach in a transaction valued at $329.4 million, net of cash acquired. The acquisition was partially financed by $200.0 million of 2.69% Senior Notes from the Prudential Note Agreement and NYL Note Facility. The remaining purchase price was financed under the Revolving Credit Facility. During August 2021, the Company amended its Revolving Credit Facility to transition from Sterling LIBOR reference rates to Sterling Overnight Interbank Average Rate ("SONIA") reference rates. The Company will apply the optional expedients in ASC 848, Reference Rate Reform , to this modification and potential future modifications driven by reference rate reform, accounting for the modifications as a continuation of the existing contracts. Therefore, these modifications will not require remeasurement at the modification date or a reassessment of previous accounting determinations. As such, the Company does not anticipate the change in reference rates will have an impact on the Company’s consolidated financial statements. Management continues to evaluate the Company’s other outstanding U.S. LIBOR based contracts to determine whether reference rate modifications are necessary. As of December 31, 2022, MSA was in full compliance with the restrictive covenants under its various credit agreements. Approximate maturities on our long-term debt over the next five years are $7.4 million in 2023, $7.4 million in 2024, $7.4 million in 2025, $316.0 million in 2026, $7.4 million in 2027 and $229.6 million thereafter. The Company had outstanding bank guarantees and standby letters of credit with banks as of December 31, 2022, totaling $9.3 million, of which $1.5 million relate to the senior revolving credit facility. The letters of credit serve to cover customer requirements in connection with certain sales orders and insurance companies. The Company is also required to provide cash collateral in connection with certain arrangements. At December 31, 2022, the Company has $1.5 million of restricted cash in support of these arrangements. In January 2023, we entered into a new $250 million term loan and $65 million was drawn down from our revolving credit facility to fund the divestiture of MSA LLC, a wholly owned subsidiary that holds legacy product liability claims relating to coal dust, asbestos, silica, and other exposures. Please refer to Note 20—Contingencies for additional information.

Goodwill and Intangible Assets

Goodwill and Intangible Assets	12 Months Ended
	Dec. 31, 2022
Goodwill and Intangible Assets Disclosure [Abstract]
Goodwill and Intangible Assets	Goodwill and Intangible Assets Changes in goodwill during the years ended December 31, 2022 and 2021, were as follows: (In thousands) 2022 2021 Balance at January 1, 2022 $ 636,858 $ 443,272 Additions — 199,454 Measurement period adjustment (1,041) — Currency translation (15,195) (5,868) Balance at December 31. 2022 $ 620,622 $ 636,858 At December 31, 2022, goodwill of $447.6 million and $173.0 million related to the Americas and International reportable segments, respectively. Changes in intangible assets, net of accumulated amortization, during the years ended December 31, 2022 and 2021, were as follows: (In thousands) 2022 2021 Net balance at January 1, 2022 $ 306,948 $ 161,051 Additions — 164,426 Amortization expense (19,137) (16,814) Currency translation (5,958) (1,715) Net balance at December 31, 2022 $ 281,853 $ 306,948 (In millions) December 31, 2022 December 31, 2021 Intangible Assets: Weighted Average Useful Life (years) Gross Carrying Amount Accumulated Amortization and Reserves Net Carrying Amount Gross Carrying Amount Accumulated Amortization and Reserves Net Carrying Amount Customer relationships 19 $ 178.7 $ (35.3) $ 143.4 $ 185.7 $ (27.9) $ 157.8 Distribution agreements 20 65.8 (26.9) 38.9 66.1 (23.8) 42.3 Technology related assets 8 49.5 (29.3) 20.2 50.4 (25.5) 24.9 Patents, trademarks and copyrights 16 34.0 (14.8) 19.2 35.2 (13.6) 21.6 License agreements 5 5.4 (5.3) 0.1 5.4 (5.3) 0.1 Other 3 3.3 (3.2) 0.1 3.3 (3.0) 0.3 Total 17 $ 336.7 $ (114.8) $ 221.9 $ 346.1 $ (99.1) $ 247.0 At December 31, 2022, the above intangible assets balance includes a trade name related to the Globe acquisition with an indefinite life totaling $60.0 million.

Acquisitions

Acquisitions	12 Months Ended
	Dec. 31, 2022
Business Combination and Asset Acquisition [Abstract]
Acquisitions	Acquisitions Acquisition of Bacharach On July 1, 2021, we acquired 100% of the common stock of Bacharach in an all cash transaction valued at $329.4 million, net of cash acquired. Headquartered near Pittsburgh in New Kensington, PA, Bacharach is a leader in gas detection technologies used in the heating, ventilation, air conditioning, and refrigeration ("HVAC-R") markets. This acquisition expanded MSA’s gas detection portfolio and leverages MSA’s product and manufacturing expertise into new markets. Bacharach's operating results are included in our consolidated financial statements from the acquisition date within the Americas, International and Corporate reportable segments. The acquisition qualified as a business combination and was accounted for using the acquisition method of accounting. The following table summarizes the fair values of the Bacharach assets acquired and liabilities assumed at the date of the acquisition: (In millions) July 1, 2021 Current assets (including cash of $11.7 million) $ 32.1 Property, plant and equipment and other noncurrent assets 4.3 Customer relationships 123.0 Developed technology 20.5 Trade name 15.0 Goodwill 193.5 Total assets acquired 388.4 Total liabilities assumed (47.3) Net assets acquired $ 341.1 Assets acquired and liabilities assumed in connection with the acquisition were recorded at fair values. Fair values were determined by management, based in part on an independent valuation performed by a third party valuation specialist. The valuation methods used to determine the fair value of intangible assets included the excess earnings approach for customer relationships using customer inputs and contributory charges; the relief from royalty method for trade name and developed technologies; and the cost method for assembled workforce was included in goodwill. A number of significant assumptions and estimates were involved in the application of these valuation methods, including forecasted sales volumes and prices, royalty rates, costs to produce, tax rates, capital spending, discount rates, attrition rates and working capital changes. Cash flow forecasts were generally based on Bacharach pre-acquisition forecasts, coupled with estimated MSA sales synergies. Identifiable intangible assets with finite lives are subject to amortization over their estimated useful lives. The customer relationships, developed technology and trade name acquired in the Bacharach transaction are being amortized over periods of 21 years, 7 to 9 years and 20 years, respectively. The step up to fair value of acquired inventory as part of the purchase price allocation totaled $2.3 million. The amortization of the inventory step up was included in Cost of products sold in the Consolidated Statements of Income for the year ended December 31, 2021. Goodwill is calculated as the excess of the purchase price over the fair value of net assets acquired and represents the future economic benefits arising from other assets acquired that could not be individually identified and separately recognized. Among the factors that contributed to a purchase price in excess of the fair value of the net tangible and intangible assets acquired were the acquisition of an assembled workforce, the expected synergies and other benefits that we believe will result from combining the operations of Bacharach with our operations. Goodwill of $193.5 million related to the Bacharach acquisition was recorded, with $154.6 million and $38.9 million allocated to the Americas reportable segment and International reportable segment, respectively. This Goodwill is non-deductible for tax purposes. Acquisition of Bristol Uniforms and Bell Apparel On January 25, 2021, we acquired 100% of the common stock of B T Q Limited, including Bristol in an all-cash transaction valued at $63.0 million, net of cash acquired. Bristol, which is headquartered in the U.K., is a leading innovator and provider of protective apparel to the fire, rescue services, and utility sectors. The acquisition strengthens MSA's position as a global market leader in fire service personal protective equipment products, which include breathing apparatus, firefighter helmets, thermal imaging cameras, and firefighter protective apparel, while providing an avenue to expand its business in the U.K. and key European markets. Bristol is also a leading manufacturer of flame-retardant, waterproof, and other protective work wear for the utility industry. Marketed under the Bell Apparel brand, this line complements MSA's existing and broad range of offerings for the global utilities market. Bristol's operating results are included in our consolidated financial statements from the acquisition date as part of the International reportable segment. The acquisition qualified as a business combination and was accounted for using the acquisition method of accounting. The following table summarizes the fair values of the Bristol assets acquired and liabilities assumed at the date of the acquisition: (In millions) January 25, 2021 Current assets (including cash of $13.3 million) $ 37.1 Net investment in sales-type leases, noncurrent 29.0 Property, plant and equipment and other noncurrent assets 12.0 Customer relationships 4.5 Trade name and other intangible assets 1.4 Goodwill 4.9 Total assets acquired 88.9 Total liabilities assumed (12.6) Net assets acquired $ 76.3 Assets acquired and liabilities assumed in connection with the acquisition were recorded at fair values. Fair values were determined by management, based in part on an independent valuation performed by a third party valuation specialist. The valuation methods used to determine the fair value of intangible assets included the excess earnings approach for customer relationships using customer inputs and contributory charges; the relief from royalty method for trade name; and the cost method for assembled workforce which is included in goodwill. A number of significant assumptions and estimates were involved in the application of these valuation methods, including forecasted sales volumes and prices, royalty rates, costs to produce, tax rates, capital spending, discount rates, attrition rates and working capital changes. Cash flow forecasts were generally based on Bristol pre-acquisition forecasts, coupled with estimated MSA sales synergies. Identifiable intangible assets with finite lives are subject to amortization over their estimated useful lives. The customer relationships and trade name acquired in the Bristol transaction will be amortized over a period of 15 years. The step up to fair value of acquired inventory as part of the purchase price allocation totaled $1.5 million. The amortization of the inventory step up was included in Cost of products sold in the Consolidated Statements of Income for the year ended December 31, 2021. Goodwill is calculated as the excess of the purchase price over the fair value of net assets acquired and represents the future economic benefits arising from other assets acquired that could not be individually identified and separately recognized. Among the factors that contributed to a purchase price in excess of the fair value of the net tangible and intangible assets acquired were the acquisition of an assembled workforce, the expected synergies and other benefits that we believe will result from combining the operations of Bristol with our operations. Goodwill of $4.9 million related to the Bristol acquisition has been recorded in the International reportable segment and is non-deductible for tax purposes. The operating results of the Bristol and Bacharach acquisitions have been included in our consolidated financial statements from their respective acquisition dates. Our results for the year ended December 31, 2021, include combined net sales and net loss of $67.2 million and $6.3 million, respectively. The following unaudited pro forma information presents our combined results as if the Bristol and Bacharach acquisitions had occurred at the beginning of 2020. The unaudited pro forma financial information was prepared to give effect to events that are (1) directly attributable to the acquisition; (2) factually supportable; and (3) expected to have a continuing impact on the combined company's results. There were no material transactions between MSA and Bristol or Bacharach during the periods presented that are required to be eliminated. The unaudited pro forma combined financial information does not reflect cost savings, operating synergies or revenue enhancements that the combined companies may achieve or the costs to integrate the operations or the costs necessary to achieve cost savings, operating synergies or revenue enhancements. Pro forma combined financial information (Unaudited) Year Ended December 31, (In millions, except per share amounts) 2021 2020 Net sales $ 1,437.9 $ 1,470.4 Net income 10.2 114.6 Basic earnings per share 0.26 2.94 Diluted earnings per share 0.26 2.91 The unaudited pro forma combined financial information is presented for information purposes only and is not intended to represent or be indicative of the combined results of operations or financial position that we would have reported had the acquisition been completed as of the date and for the periods presented, and should not be taken as representative of our consolidated results of operations or financial condition following the acquisition. In addition, the unaudited pro forma combined financial information is not intended to project the future results of the combined company. The unaudited pro forma combined financial information was prepared using the acquisition method of accounting under existing U.S. GAAP. MSA has been treated as the acquirer. Total acquisition related costs were $12.4 million, $15.9 million and $0.7 million for the years ended December 31, 2022, 2021 and 2020, respectively. Transactional costs are included in Selling, general and administrative expenses and acquisition-related amortization is included in Cost of products sold in the Consolidated Statements of Income. Acquisition of Noncontrolling Interest During July 2021, the Company purchased the remaining 10% noncontrolling interest in MSA (China) Safety Equipment Co., Ltd. from our partner in China for $19.0 million, inclusive of a $5.6 million distribution.

Pensions and Other Post-retirem

Pensions and Other Post-retirement Benefits	12 Months Ended
	Dec. 31, 2022
Retirement Benefits [Abstract]
Pensions and Other Post-retirement Benefits	Pensions and Other Post-retirement Benefits We maintain various defined benefit and defined contribution plans covering the majority of our employees. Our principal U.S. plan is funded in compliance with the Employee Retirement Income Security Act ("ERISA"). It is our general policy to fund current costs for the international plans, except in Germany and Mexico, where it is common practice and permissible under tax laws to maintain an unfunded liability. We provide health care benefits and limited life insurance for certain retired employees who are covered by our principal U.S. defined benefit pension plan until they become Medicare-eligible. Defined benefit pension plan and other post-retirement benefits plan information is provided in the following tables: Pension Benefits Other Benefits (In thousands) 2022 2021 2022 2021 Change in Benefit Obligations Benefit obligations at January 1 $ 654,362 $ 670,857 $ 29,831 $ 32,225 Service cost 12,281 12,910 327 398 Interest cost 14,377 11,518 590 476 Participant contributions 257 287 259 345 Plan amendments 154 (243) — — Actuarial gains (a) (156,214) (10,277) (5,884) (1,518) Benefits paid (26,377) (25,117) (2,585) (3,021) Curtailments (286) (439) — — Settlements (260) (3,190) — — Transfers (b) — (19,312) — — Acquisitions — 26,231 — 926 Currency translation (7,929) (8,863) — — Benefit obligations at December 31 $ 490,365 $ 654,362 $ 22,538 $ 29,831 Change in Plan Assets Fair value of plan assets at January 1 $ 651,986 $ 586,822 $ — $ — Actual return on plan assets (115,105) 80,366 — — Employer contributions 5,032 5,543 2,326 2,676 Participant contributions 257 287 259 345 Acquisitions — 25,476 — — Settlements (260) (1,365) — — Benefits paid (26,377) (25,117) (2,585) (3,021) Transfers (b) — (19,312) — — Administrative expenses paid (54) (67) — — Currency translation (1,261) (647) — — Fair value of plan assets at December 31 $ 514,218 $ 651,986 $ — $ — Funded Status Funded status at December 31 $ 23,853 $ (2,376) $ (22,538) $ (29,831) Unrecognized prior service credit (cost) 1,224 1,186 (429) (767) Unrecognized net actuarial losses 90,212 95,674 6,445 13,570 Net amount recognized $ 115,289 $ 94,484 $ (16,522) $ (17,028) Amounts Recognized in the Balance Sheets Noncurrent assets $ 141,643 $ 163,283 $ — $ — Current liabilities (3,712) (6,569) (2,226) (2,739) Noncurrent liabilities (114,078) (159,090) (20,312) (27,092) Net amount recognized $ 23,853 $ (2,376) $ (22,538) $ (29,831) Amounts Recognized in Accumulated Other Comprehensive Loss Net actuarial losses $ 90,212 $ 95,674 $ 6,445 $ 13,570 Prior service cost (credit) 1,224 1,186 (429) (767) Total (before tax effects) $ 91,436 $ 96,860 $ 6,016 $ 12,803 Accumulated Benefit Obligations for all Defined Benefit Plans $ 459,630 $ 608,436 $ — $ — (a) Actuarial gains for both periods relate primarily to the increase/decrease in discount rates used in measuring plan obligations as of December 31, 2022 and 2021, respectively. (b) Transfers consist of Netherlands defined benefit plan conversion to a defined contribution plan. Pension Benefits Other Benefits (In thousands) 2022 2021 2020 2022 2021 2020 Components of Net Periodic Benefit (Income) Cost Service cost $ 12,281 $ 12,910 $ 12,094 $ 327 $ 398 $ 396 Interest cost 14,377 11,518 14,905 590 476 716 Expected return on plan assets (49,646) (37,368) (34,029) — — — Amortization of prior service cost (credit) 139 164 178 (338) (358) (394) Recognized net actuarial losses 11,704 17,458 15,799 1,242 1,597 1,145 Settlement/curtailment (gain) loss (354) (2,234) (b) 1,135 (b) — — — Net periodic benefit (income) cost (a) $ (11,499) $ 2,448 $ 10,082 $ 1,821 $ 2,113 $ 1,863 (a) Components of net periodic benefit (income) cost other than service cost are included in the line item Other income, net, and service costs are included in the line items Cost of products sold and Selling, general and administrative in the Consolidated Statements of Income. (b) Relates primarily to the conversion of our Netherlands pension plan into a defined contribution plan and is included in "Restructuring charges" in the Consolidated Statements of Income. The Company utilizes a spot rate approach, which discounts the individual plan specific expected cash flows underlying the service and interest cost using the applicable spot rates derived from a yield curve used in the determination of the benefit obligation to the relevant projected cash flows. For plans where the discount rate is not derived from plan specific expected cash flows, the Company uses a single weighted-average discount rate derived from the yield curve used to measure the projected benefit obligation at the beginning of the period for measuring both the projected benefit obligations and the service and interest cost components of net periodic benefit cost for pension and other post-retirement benefits. Information for pension plans with an accumulated benefit obligation in excess of plan assets: Pension Benefits (In thousands) 2022 2021 Aggregate accumulated benefit obligations (ABO) $ 116,531 $ 181,511 Aggregate fair value of plan assets 4,454 22,265 Information for pension plans with a projected benefit obligation in excess of plan assets: Pension Benefits (In thousands) 2022 2021 Aggregate projected benefit obligations (PBO) $ 122,229 $ 187,924 Aggregate fair value of plan assets 4,454 22,265 Pension Benefits Other Benefits 2022 2021 2022 2021 Assumptions used to determine benefit obligations Average discount rate 5.01 % 2.70 % 5.09 % 2.66 % Rate of compensation increase 4.61 % 4.58 % 3.00 % 2.91 % Assumptions used to determine net periodic benefit cost Average discount rate - Service cost 3.12 % 2.80 % 2.84 % 2.42 % Average discount rate - Interest cost 2.17 % 1.69 % 2.04 % 1.48 % Expected return on plan assets 8.77 % 7.13 % — — Rate of compensation increase 4.58 % 2.90 % 2.91 % 3.00 % Discount rates for all U.S. and foreign plans were determined using the aforementioned spot rate methodology for 2022 and 2021. Aside from sovereign bonds used in Mexico, the remaining plans' discount rates were determined using various corporate bonds and by matching our projected benefit obligation payment stream to current yields on high quality bonds. The expected return on assets for the 2022 net periodic pension cost was determined by multiplying the expected returns of each asset class (based on capital market expectations) by the expected percentage of the total portfolio invested in that asset class. A total return was determined by summing the expected returns over all asset classes. Pension Plan Assets at 2022 2021 Equity securities 56 % 51 % Fixed income securities 26 25 Pooled investment funds 15 22 Cash and cash equivalents 2 1 Insurance contracts 1 1 Total 100 % 100 % The overall objective of our pension investment strategy is to earn a rate of return over time to satisfy the benefit obligations of the pension plans and to maintain sufficient liquidity to pay benefits and meet other cash requirements of our pension funds. Investment policies for our primary U.S. pension plan are determined by the plan’s Investment Committee and set forth in the plan’s investment policy. Asset managers are granted discretion for determining sector mix, selecting securities and timing transactions, subject to the guidelines of the investment policy. An aggressive, flexible management of the portfolio is permitted and encouraged, with shifts of emphasis among equities, fixed income securities and cash equivalents at the discretion of each manager. No target asset allocations are set forth in the investment policy. For our non-U.S. pension plans, our investment objective is generally met through the use of pooled investment funds and insurance contracts. The fair values of the Company's pension plan assets are determined using NAV as a practical expedient, or by information categorized in the fair value hierarchy level based on the inputs used to determine fair value, as further discussed in Note 19—Fair Value Measurements. The fair values at December 31, 2022, were as follows: Fair Value (In thousands) Total NAV Quoted Prices Significant Significant Equity securities $ 288,006 $ 44,583 $ 243,423 $ — $ — Fixed income securities 132,659 — 63,522 69,137 — Pooled investment funds 79,853 79,853 — — — Cash and cash equivalents 9,246 7,954 1,292 — — Insurance contracts 4,454 — — — 4,454 Total $ 514,218 $ 132,390 $ 308,237 $ 69,137 $ 4,454 The fair values of the Company's pension plan assets at December 31, 2021, were as follows: Fair Value (In thousands) Total NAV Quoted Prices Significant Significant Equity securities $ 329,795 $ 66,897 $ 262,898 $ — $ — Fixed income securities 161,965 — 86,543 75,422 — Pooled investment funds 146,081 146,081 — — — Cash and cash equivalents 9,934 8,637 1,297 — — Insurance contracts 4,211 — — — 4,211 Total $ 651,986 $ 221,615 $ 350,738 $ 75,422 $ 4,211 Equity securities consist primarily of publicly traded U.S. and non-U.S. common stocks. Equities are valued at closing prices reported on the listing stock exchange. Fixed income securities consist primarily of U.S. government and agency bonds and U.S. corporate bonds. Fixed income securities are valued at closing prices reported in active markets or based on yields currently available on comparable securities of issuers with similar credit ratings. When quoted prices are not available for identical or similar bonds, the bond is valued under a discounted cash flow approach that maximizes observable inputs, such as current yields of similar instruments, and may include adjustments, for certain risks that may not be observable, such as credit and liquidity risks. A financial instrument's categorization within the valuation hierarchy is based upon the lowest level of input that is significant to the fair value measurement. Pooled investment funds consist of mutual and collective investment funds that invest primarily in publicly traded equity and fixed income securities. Pooled investment funds are valued using the NAV provided by the administrator of the fund. The NAV is based on the value of the underlying assets owned by the fund, minus its liabilities, divided by the number of shares outstanding. The underlying securities are generally valued at closing prices reported in active markets, quoted prices of similar securities, or discounted cash flows approach that maximizes observable inputs such as current value measurement at the reporting date. These investments are not classified in the fair value hierarchy in accordance with guidance in ASU 2015-07. Insurance contracts are valued in accordance with the terms of the applicable collective pension contract. The fair value of the plan assets equals the discounted value of the expected cash flows of the accrued pensions which are guaranteed by the counterparty insurer. Cash equivalents consist primarily of money market and similar temporary investment funds. Cash equivalents are valued at closing prices reported in active markets. The preceding methods may produce fair value measurements that are not indicative of net realizable value or reflective of future fair values. Although we believe the valuation methods are appropriate and consistent with other market participants, the use of different methodologies or assumptions to determine the fair value of certain financial instruments could result in a different fair value measurement at the reporting date. The following table presents a reconciliation of Level 3 assets: (In thousands) Insurance Balance January 1, 2021 $ 24,396 Net realized and unrealized gains (881) Net purchases, issuances and settlements (19,304) Balance December 31, 2021 4,211 Net realized and unrealized gains (119) Net purchases, issuances and settlements 362 Balance December 31, 2022 $ 4,454 The following table presents amounts related to Level 3 assets recognized in accumulated other comprehensive loss: (In thousands) Insurance Net actuarial losses $ (1,781) Prior service cost 744 Total (before tax effects) $ (1,037) We expect to make net contributions of $8.2 million to our pension plans in 2023, which are primarily associated with statutorily required plans in the International reporting segment. For the 2022 beginning of the year measurement purposes (net periodic benefit expense), a 5.9% increase in the costs of covered health care benefits was assumed, decreasing by 0.2% for each successive year to 4.5% in 2030 and thereafter. For the 2022 end of the year measurement purposes (benefit obligation), a 6.5% increase in the costs of covered health care benefits was assumed, decreasing by approximately 0.2% for each successive year to 4.4% in 2032 and thereafter.

Other Income, Net

Other Income, Net	12 Months Ended
	Dec. 31, 2022
Other Income and Expenses [Abstract]
Other Income, Net	Other Income, Net Year ended December 31, (In thousands) 2022 2021 2020 Components of net periodic benefit (income) cost other than service cost (Note 15) $ 22,286 $ 8,321 $ 1,680 Interest income 4,155 3,256 3,498 Loss on asset write-down and dispositions, net (6,290) (788) (236) Other, net 905 793 742 Total other income, net $ 21,056 $ 11,582 $ 5,684

Leases

Leases	12 Months Ended
	Dec. 31, 2022
Leases [Abstract]
Leases	Leases As a lessee, we have various operating lease agreements primarily related to real estate, vehicles and office and plant equipment. The components of lease expense were as follows: Year Ended December 31, (In thousands, except percentage and year amounts) 2022 2021 Lease cost: Operating lease cost recognized as rent expense $ 14,970 $ 14,230 Total lease cost $ 14,970 $ 14,230 Other Information Cash paid for amounts included in the measurement of lease liabilities: Operating cash flows related to operating leases $ 14,906 $ 14,440 Non-cash other information: Right-of-use assets obtained in exchange for new operating lease liabilities $ 6,418 $ 21,857 Right-of-use assets obtained in acquisitions $ — $ 4,795 December 31, 2022 2021 Weighted-average remaining lease term (in years): Operating leases 14 14 Weighted-average discount rate: Operating leases 2.66 % 2.49 % Rent expense was $15.0 million, $14.2 million and $13.0 million in 2022, 2021 and 2020, respectively. We did not have any lease transactions with related parties. We did not have any significant leases not yet commenced. At December 31, 2022, future lease payments under operating leases were as follows: (In thousands) Operating Leases 2023 $ 10,043 2024 7,480 2025 5,200 2026 4,061 2027 3,428 After 2027 22,031 $ 52,243 Less: Imputed interest 7,938 Present value of operating lease liabilities 44,305 Less: Current portion operating lease liabilities (a) 8,960 Noncurrent operating lease liabilities $ 35,345 (a) Included in Accrued restructuring and other current liabilities on the Consolidated Balance Sheets.
Leases	Leases As a lessee, we have various operating lease agreements primarily related to real estate, vehicles and office and plant equipment. The components of lease expense were as follows: Year Ended December 31, (In thousands, except percentage and year amounts) 2022 2021 Lease cost: Operating lease cost recognized as rent expense $ 14,970 $ 14,230 Total lease cost $ 14,970 $ 14,230 Other Information Cash paid for amounts included in the measurement of lease liabilities: Operating cash flows related to operating leases $ 14,906 $ 14,440 Non-cash other information: Right-of-use assets obtained in exchange for new operating lease liabilities $ 6,418 $ 21,857 Right-of-use assets obtained in acquisitions $ — $ 4,795 December 31, 2022 2021 Weighted-average remaining lease term (in years): Operating leases 14 14 Weighted-average discount rate: Operating leases 2.66 % 2.49 % Rent expense was $15.0 million, $14.2 million and $13.0 million in 2022, 2021 and 2020, respectively. We did not have any lease transactions with related parties. We did not have any significant leases not yet commenced. At December 31, 2022, future lease payments under operating leases were as follows: (In thousands) Operating Leases 2023 $ 10,043 2024 7,480 2025 5,200 2026 4,061 2027 3,428 After 2027 22,031 $ 52,243 Less: Imputed interest 7,938 Present value of operating lease liabilities 44,305 Less: Current portion operating lease liabilities (a) 8,960 Noncurrent operating lease liabilities $ 35,345 (a) Included in Accrued restructuring and other current liabilities on the Consolidated Balance Sheets.

Derivative Financial Instrument

Derivative Financial Instruments	12 Months Ended
	Dec. 31, 2022
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Derivative Financial Instruments	Derivative Financial Instruments As part of our currency exchange rate risk management strategy, we enter into certain derivative foreign currency forward contracts that do not meet the U.S. GAAP criteria for hedge accounting but have the impact of partially offsetting certain foreign currency exposures. We account for these forward contracts at fair value and report the related gains or losses in currency exchange losses, net, in the Consolidated Statements of Income. At December 31, 2022, the notional amount of open forward contracts was $103.0 million and there were no unrealized gains/losses on these contracts. All open forward contracts will mature during the first quarter of 2023. The following table presents the Consolidated Balance Sheets location and fair value of assets and liabilities associated with derivative financial instruments: December 31, (In thousands) 2022 2021 Derivatives not designated as hedging instruments: Foreign exchange contracts: prepaid expenses and other current assets $ 724 $ 619 Foreign exchange contracts: accrued restructuring and other current liabilities $ 85 $ 128 The following table presents the Consolidated Statements of Income and Consolidated Statements of Cash Flows location and impact of derivative financial instruments: Year ended 2022 2021 Derivatives not designated as hedging instruments: Foreign exchange contracts: currency exchange losses, net $ 6,656 $ 5,107

Fair Value Measurements

Fair Value Measurements	12 Months Ended
	Dec. 31, 2022
Fair Value Disclosures [Abstract]
Fair Value Measurements	Fair Value Measurements Fair value is defined as the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date. The fair value hierarchy consists of three broad levels, which gives the highest priority to unadjusted quoted prices in active markets for identical assets or liabilities (Level 1) and the lowest priority to unobservable inputs (Level 3). The three levels of the fair value hierarchy are: Level 1—Observable inputs that reflect unadjusted quoted prices for identical assets or liabilities in active markets. Level 2—Inputs other than quoted prices included within Level 1 that are observable for the asset or liability, either directly or indirectly. Level 3—Unobservable inputs for the asset or liability. The valuation methodologies we used to measure financial assets and liabilities were limited to the pension plan assets and the derivative financial instruments described in Note 15—Pensions and Other Post-retirement Benefits and Note 18—Derivative Financial Instruments, respectively. See Note 15 for the fair value hierarchy classification of pension plan assets. We estimate the fair value of the derivative financial instruments, consisting of foreign currency forward contracts, based upon valuation models with inputs that generally can be verified by observable market conditions and do not involve significant management judgment. Accordingly, the fair values of the derivative financial instruments are classified within Level 2 of the fair value hierarchy. With the exception of our investments in marketable securities and fixed rate long-term debt both as disclosed below, we believe that the reported carrying amounts of our remaining financial assets and liabilities approximate their fair values.

Contingencies

Contingencies	12 Months Ended
	Dec. 31, 2022
Commitments and Contingencies Disclosure [Abstract]
Contingencies	Contingencies Product liability The Company and its subsidiaries face an inherent business risk of exposure to product liability claims arising from the alleged failure of our products to prevent the types of personal injury or death against which they are designed to protect. Product liability claims are categorized as either single incident or cumulative trauma. Single incident product liability claims. Single incident product liability claims involve incidents of short duration that are typically known when they occur and involve observable injuries, which provide an objective basis for quantifying damages. Management has established reserves for the single incident product liability claims of its various subsidiaries, including, asserted single incident product liability claims and incurred but not reported ("IBNR") single incident claims. To determine the reserves, Management makes reasonable estimates of losses for single incident claims based on the number and characteristics of asserted claims, historical experience, sales volumes, expected settlement costs, and other relevant information. The reserve for single incident product liability claims was $1.4 million at both December 31, 2022 and December 31, 2021. Single incident product liability expense was nominal for the years ended December 31, 2022 and 2021, compared to a benefit of $1.7 million for the year ended December 31, 2020. Single incident product liability exposures are evaluated on an annual basis, or more frequently if changing circumstances warrant. Adjustments are made to the reserve as appropriate. The reserve has not been discounted to present value and does not include future amounts which will be spent to defend the claims. Cumulative trauma product liability claims. Cumulative trauma product liability claims involve potential exposures to substances that are alleged to have occurred over a number of years. In recent periods, this has included the asbestos, silica, and coal dust claims of one of the Company's affiliates, Mine Safety Appliances Company, LLC ("MSA LLC"). As of December 31, 2022, MSA LLC was named as a defendant in 1,500 lawsuits comprised of 4,054 claims. These lawsuits mainly involve respiratory protection products allegedly manufactured and sold by MSA LLC or its predecessors. The product models alleged were manufactured many years ago by MSA LLC and are no longer sold. While pending as of December 31, 2022, all of the asserted claims listed in the summary table below are the sole responsibility of MSA LLC. MSA LLC was divested on January 5, 2023 and following that divestiture, neither the Company nor any of its subsidiaries have any responsibility for these claims, or the types of claims, listed in the following. See "Subsequent Event," below. 2022 2021 2020 Open lawsuits, beginning of period 1,675 1,622 1,605 New lawsuits 300 432 402 Settled and dismissed lawsuits (475) (379) (385) Open lawsuits, end of period 1,500 1,675 1,622 2022 2021 2020 Asserted claims, beginning of period 4,554 2,878 2,456 New claims 520 2,134 917 Settled, inactive and dismissed claims (1,020) (458) (495) Asserted claims, end of period 4,054 4,554 2,878 As of December 31, 2022, MSA LLC is defending an action filed in 2003 by the State of West Virginia, through its Attorney General, in the Circuit Court of Lincoln County, West Virginia, against MSA LLC and two other manufacturers of respiratory protection products. The State asserts several causes of action and seeks substantial compensatory damages—primarily for reimbursement of costs the State allegedly has incurred for worker’s compensation and healthcare benefits provided to individuals with occupational pneumoconiosis—as well as unspecified punitive damages. The State also asserts a claim under the West Virginia Consumer Credit and Protection Act (“CCPA”), alleging that the defendants made willful misrepresentations regarding product performance in connection with sales and advertisement of respirators in West Virginia and seeks substantial civil penalties. The claims against MSA LLC were severed from the claims against the other defendants and the trial date against MSA LLC was continued indefinitely in November 2022. No reserve has been recorded for this matter because the Company believes that liability is unsupportable under West Virginia law, and therefore, has concluded that the loss is not probable. In addition, the Company is not able to estimate a reasonably possible loss or range of reasonably possible losses given significant unresolved legal and factual matters. MSA LLC is the named defendant in this matter and responsibility for the matter passed along with the divestiture of MSA LLC on January 5, 2023. See "Subsequent Event," below. Management previously established a reserve for MSA LLC's potential exposure to cumulative trauma product liability claims. Prior to divestiture of the subsidiary, as of December 31, 2022, MSA LLC's total cumulative trauma product liability reserve was $395.1 million, including $13.4 million for claims settled but not yet paid and related defense costs and $409.8 million, including $2.5 million for claims settled but not yet paid and related defense costs, as of December 31, 2021. The reserve included estimated amounts related to asserted and IBNR asbestos, silica, and coal dust claims expected to be resolved through the year 2075. The reserve was not discounted to present value and did not include estimated future amounts relating to defense of the claims. Defense costs are recognized in the Consolidated Statements of Income as incurred. At December 31, 2022, $65.1 million of the total reserve for cumulative trauma product liability claims is recorded in the Insurance and product liability line within other current liabilities in the Consolidated Balance Sheet and the remainder, $330.0 million, is recorded in the Product liability and other noncurrent liabilities line. At December 31, 2021, $46.7 million of the total reserve for cumulative trauma product liability claims is recorded in the Insurance and product liability line within other current liabilities in the Consolidated Balance Sheet and the remainder, $363.1 million, is recorded in the Product liability and other noncurrent liabilities line. During the quarter ended June 30, 2022, MSA LLC finalized a process that will result in settlements to resolve and dismiss several hundred claims for up to $26.3 million. Amounts to resolve the unpaid portion of these claims have been accrued as part of the product liability reserve and as of December 31, 2022, $10.5 million remained unpaid with the final payments made during the first quarter of 2023. Total cumulative trauma liability losses were $22.2 million, $228.2 million, and $77.8 million for the years ended December 31, 2022, 2021 and 2020, respectively, and related to updates to our cumulative trauma product liability reserve as well as the defense of cumulative trauma product liability claims for all periods. Uninsured cumulative trauma product liability losses, which were included in Product liability and other operating expense on the Consolidated Statements of Income for the years ended December 31, 2022, 2021 and 2020, were $20.6 million, $185.3 million and $39.0 million, respectively, and represent the total cumulative trauma product liability losses net of any estimated insurance receivables as discussed below. MSA LLC's cumulative trauma product liability reserve is based upon a reasonable estimate of MSA LLC’s current and potential future liability for cumulative trauma product liability claims, in accordance with applicable accounting principles. To develop a reasonable estimate of MSA LLC’s potential exposure to cumulative trauma product liability claims, management performs an annual comprehensive review of MSA LLC’s cumulative trauma product liability claims in consultation with an outside valuation consultant and outside legal counsel. The review process takes into account MSA LLC’s historical claims experience, developments in MSA LLC’s claims experience over the past year, developments in the tort system generally, and any other relevant information. Quarterly, management and outside legal counsel review whether significant new developments have occurred which could materially impact recorded amounts, and if warranted, management reviews changes with an outside valuation consultant. Adjustments to the reserve for the year ended December 31, 2022 totaled $8.4 million, resulting from our annual comprehensive review of MSA LLC’s claims exposure, including review of activity experienced during the year. The estimate of MSA LLC’s potential liability for cumulative trauma product liability claims, and the corresponding reserve, are based upon numerous assumptions derived from MSA LLC’s historical experience. Those assumptions include the incidence of applicable diseases in the general population, the number of claims that may be asserted against MSA LLC in the future, the years in which such claims may be asserted, the counsel asserting those claims, the percentage of claims resolved through settlement, the types and severity of illnesses alleged by claimants to give rise to their claims, the venues in which the claims are asserted, and numerous other factors, which influence how many claims may be brought against MSA LLC, whether those claims ultimately are resolved for payment, and at what values. Insurance Receivable and Notes Receivable, Insurance Companies Many years ago, MSA LLC purchased insurance policies from various insurance carriers that, subject to common contract exclusions, provided coverage for cumulative trauma product liability losses (the "Occurrence-Based Policies"). While we have continued to pursue reimbursement under certain remaining Occurrence-Based Policies, the vast majority of these policies have been exhausted, settled or converted into either (1) negotiated settlement agreements with scheduled payment streams (recorded as notes receivables) or (2) negotiated Coverage-in-Place Agreements (recorded as insurance receivables). As a result, MSA LLC is largely self-insured for cumulative trauma product liability claims, and additional amounts recorded as insurance receivables or notes receivables will be limited. These policies, as well as the negotiated settlement agreements and Coverage-in-Place Agreements, together with all associated receivables are property of MSA LLC, which was divested on January 5, 2023. See "Subsequent Event," below. When adjustments are made to amounts recorded in the cumulative trauma product liability reserve, we calculate amounts due to be reimbursed pursuant to the terms of the negotiated Coverage-In-Place Agreements, including cumulative trauma product liability losses and related defense costs, and we record the amounts probable of reimbursement as insurance receivables. These amounts are not subject to current coverage litigation. Insurance receivables at December 31, 2022 totaled $127.6 million, of which $17.3 million is reported in Prepaid expenses and other current assets in the Consolidated Balance Sheet and $110.3 million is reported in Insurance receivable and other noncurrent assets. Insurance receivables at December 31, 2021 totaled $130.2 million, of which $8.6 million was reported in Prepaid expenses and other current assets in the Consolidated Balance Sheet and $121.6 million was reported in Insurance receivable and other noncurrent assets. The vast majority of the $127.6 million insurance receivables balance at December 31, 2022, is attributable to reimbursement believed to be due under the terms of signed Coverage-In-Place Agreements and a portion of this amount represents the estimated recovery of IBNR amounts not yet incurred. A summary of insurance receivables balance and activity related to cumulative trauma product liability losses is as follows: (In millions) 2022 2021 Balance beginning of period $ 130.2 $ 97.0 Additions 1.8 43.5 Collections (4.4) (10.3) Balance end of period $ 127.6 $ 130.2 We record formal notes receivables due from scheduled payment streams according to negotiated settlement agreements with insurers. These amounts are not subject to current coverage litigation. Notes receivable from insurance companies at December 31, 2022 totaled $44.6 million, of which $5.9 million is reported in Notes receivable, insurance companies, current on the Consolidated Balance Sheet and $38.7 million is reported in Notes receivable, insurance companies, noncurrent. Notes receivable from insurance companies at December 31, 2021, totaled $48.5 million, of which $3.9 million was reported in Notes receivable, insurance companies, current on the Consolidated Balance Sheet and $44.6 million was reported in Notes receivable, insurance companies, noncurrent. A summary of notes receivables from insurance companies balance is as follows: December 31, (In millions) 2022 2021 Balance beginning of period $ 48.5 $ 52.3 Additions 1.2 1.3 Collections (5.1) (5.1) Balance end of period $ 44.6 $ 48.5 The vast majority of the insurance receivables balances at both December 31, 2022 and 2021, is attributable to reimbursement under the terms of signed agreements with insurers and is not currently subject to litigation. The collectability of MSA LLC's insurance receivables and notes receivables is regularly evaluated and the Company believes that the amounts recorded are probable of collection. The determination that the recorded insurance receivables are probable of collection is based on the terms of the settlement agreements reached with the insurers, our history of collection, and the advice of MSA LLC's outside legal counsel and consultants. Various factors could affect the timing and amount of recovery of the insurance and notes receivables, including assumptions regarding various aspects of the composition and characteristics of future claims (which are relevant to calculating reimbursement under the terms of certain Coverage-In-Place Agreements) and the extent to which the issuing insurers may become insolvent in the future. Subsequent Event On January 5, 2023, the Company divested MSA LLC, a wholly-owned subsidiary that holds legacy product liability claims relating to coal dust, asbestos, silica, and other exposures, to a joint venture between R&Q Insurance Holdings Ltd. and Obra Capital, Inc. In connection with the closing, the Company contributed $341 million in cash and cash equivalents, while R&Q and Obra contributed an additional $35 million. As a result of the transaction in the first quarter of 2023, we will derecognize all legacy cumulative trauma product liability reserves, related insurance assets, and associated deferred tax assets of the divested subsidiary from our balance sheet and will recognize a loss of approximately $200 million. R&Q and Obra's joint venture has assumed management of the divested subsidiary, including the management of its claims and associated assets. Other Litigation Two subsidiaries of the Company, Globe Manufacturing Company, LLC ("Globe") and MSA LLC, are defending a number of lawsuits in which plaintiffs assert that certain of those entities’ products allegedly containing per- and polyfluoroalkyl substances (“PFAS”) have caused injury, health issues, or environmental issues. PFAS are a large class of substances that are widely used in everyday products. Specifically, Globe builds turnout gear from technical fabrics sourced from a small pool of specialty textile manufacturers. These protective fabrics have been tested and certified to meet industry standards, and some of them contain PFAS to achieve water, oil, or chemical resistance. No manufacturer of firefighter protective clothing is currently able to meet National Fire Protection Association safety standards while offering coats or pants that are completely PFAS free. Globe and MSA LLC believe they have valid defenses to these lawsuits. These matters are at a very early stage with numerous factual and legal issues to be resolved. Defense costs relating to these lawsuits are recognized in the Consolidated Statement of Income as incurred. Globe and MSA LLC are also pursuing insurance coverage and indemnification related to the lawsuits. The PFAS claims against MSA LLC were included in the divestiture of MSA LLC on January 5, 2023 as discussed above under the Subsequent Event header. In total, Globe was named as a defendant in 34 lawsuits comprised of approximately 1,865 claims as of February 16, 2023. Product Warranty The Company provides warranties on certain product sales. Product warranty reserves are established in the same period that revenue from the sale of the related products is recognized, or in the period that a specific issue arises as to the functionality of the Company's product. The determination of such reserves requires the Company to make estimates of product return rates and expected costs to repair or to replace the products under warranty. The amounts of the reserves are based on established terms and the Company's best estimate of the amounts necessary to settle future and existing claims on products sold as of the balance sheet date. If actual return rates and/or repair and replacement costs differ significantly from estimates, adjustments to recognize additional cost of sales may be required in future periods. The following table reconciles the changes in the Company's accrued warranty reserve: December 31, (In thousands) 2022 2021 2020 Beginning warranty reserve $ 12,423 $ 11,428 $ 12,715 Warranty payments (10,631) (8,987) (10,861) Warranty claims 14,544 10,225 10,233 Provision for product warranties and other adjustments (1,106) (243) (659) Ending warranty reserve $ 15,230 $ 12,423 $ 11,428 Warranty expense for the years ended December 31, 2022, 2021 and 2020 was $13.4 million, $10.0 million and $9.6 million, respectively and is included in Costs of products sold on the Consolidated Statements of Income.

Quarterly Financial Information

Quarterly Financial Information (Unaudited)	12 Months Ended
	Dec. 31, 2022
Quarterly Financial Information Disclosure [Abstract]
Quarterly Financial Information (Unaudited)	Quarterly Financial Information (Unaudited) 2022 Quarters (In thousands, except per share amounts) 1st 2nd 3rd 4th Year Net sales $ 330,692 $ 372,313 $ 381,694 $ 443,254 $ 1,527,953 Gross profit 142,784 164,400 169,395 197,252 673,831 Net income attributable to MSA Safety Incorporated 35,542 47,693 44,906 51,489 179,630 Earnings per share (1) Basic $ 0.90 $ 1.21 $ 1.15 $ 1.31 $ 4.58 Diluted 0.90 1.21 1.14 1.31 4.56 2021 Quarters (In thousands, except earnings per share) 1st 2nd 3rd 4th Year Net sales $ 308,428 $ 341,289 $ 340,197 $ 410,268 $ 1,400,182 Gross profit 134,785 153,000 149,439 178,124 615,348 Net income (loss) attributable to MSA Safety Incorporated 36,450 25,186 21,180 (61,476) 21,340 Earnings (loss) per share (1) Basic $ 0.93 $ 0.64 $ 0.54 $ (1.57) $ 0.54 Diluted 0.92 0.64 0.54 (1.57) 0.54 (1) Per share amounts are calculated independently for each period presented; therefore, the sum of the quarterly per share amounts may not equal the per share amounts for the year.

Schedule II - Valuation and Qua

Schedule II - Valuation and Qualifying Accounts	12 Months Ended
	Dec. 31, 2022
SEC Schedule, 12-09, Valuation and Qualifying Accounts [Abstract]
Schedule II - Valuation and Qualifying Accounts	MSA SAFETY INCORPORATED VALUATION AND QUALIFYING ACCOUNTS THREE YEARS ENDED DECEMBER 31, 2022 2022 2021 2020 (In thousands) Allowance for doubtful accounts: Balance at beginning of year $ 5,789 $ 5,344 $ 4,860 Additions— Charged to costs and expenses 1,253 1,645 1,172 Deductions— Deductions from reserves, net (1)(2) 273 1,200 688 Balance at end of year $ 6,769 $ 5,789 $ 5,344 Income tax valuation allowance: Balance at beginning of year $ 8,812 $ 7,188 $ 5,936 Additions— Charged to costs and expenses (3) 2,771 2,575 2,854 Deductions— Deductions from reserves (3) 1,566 951 1,602 Balance at end of year $ 10,017 $ 8,812 $ 7,188 (1) Bad debts written off, net of recoveries. (2) Activity for 2022, 2021 and 2020 includes currency translation gains (losses) of $202, $79 and $(107), respectively. (3) Activity for 2022, 2021 and 2020 includes currency translation gains (losses) of $622, $29 and $(41), respectively.

Significant Accounting Polici_2

Significant Accounting Policies (Policies)	12 Months Ended
	Dec. 31, 2022
Accounting Policies [Abstract]
General Information and Basis of Presentation	General Information and Basis of Presentation— The consolidated financial statements of MSA Safety Incorporated ("MSA" or "the Company") are prepared in conformity with accounting principles generally accepted in the United States of America ("U.S. GAAP") and require management to make certain judgments, estimates, and assumptions. These may affect the reported amounts of assets and liabilities and the disclosure of contingent assets and liabilities at the date of the consolidated financial statements. They also may affect the reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates upon subsequent resolution of identified matters.
Principles of Consolidation	Principles of Consolidation— The consolidated financial statements include the accounts of the Company and all subsidiaries. Intercompany accounts and transactions are eliminated.
Noncontrolling Interests	Noncontrolling Interests—Noncontrolling interests reflect noncontrolling shareholders’ investments in certain consolidated subsidiaries and their proportionate share of the income and accumulated other comprehensive loss of those subsidiaries. During July 2021, the Company purchased the remaining noncontrolling interests in MSA (China) Safety Equipment Co., Ltd.
Currency Translation	Currency Translation— The functional currency of all significant non-U.S. subsidiaries is the local country currency. Assets and liabilities of these operations are translated at year-end exchange rates. Income statement accounts are translated using the average exchange rates for the reporting period. Translation adjustments for these subsidiaries are reported as a component of shareholders’ equity and are not included in net income. Foreign currency transaction gains and losses are included in net income for the reporting period.
Cash Equivalents	Cash Equivalents—Cash equivalents include temporary deposits with financial institutions and highly liquid investments with original maturities of 90 days or less. Highly liquid investments consist of money market funds which were $1.9 million and $8.7 million at December 31, 2022 and 2021, respectively. These funds are valued at net asset value (“NAV”). These funds are required to price and transact at a NAV per share that fluctuates based upon the pricing of the underlying portfolio of securities. This requirement may impact the value of these fund shares.
Restricted Cash	Restricted Cash— Restricted cash, which is designated for use other than current operations, is included in prepaid expenses and other current assets in the Consolidated Balance Sheets. Restricted cash balances were $1.5 million and $0.5 million at December 31, 2022 and 2021, respectively. These balances were used to support letter of credit balances.
Inventories	Inventories— Inventories are stated at the lower of cost and net realizable value, which approximates current replacement cost. Cost is determined using the FIFO method. It is the Company's general policy to write-down any inventory balance in excess of the last 24 months of consumption and any inventory identified as obsolete.
Investment securities	Investment securities — The Company’s investment securities, primarily consisting of fixed income securities, are classified as available-for-sale. The securities are recorded at fair market value and included in “Investments, short-term” in the accompanying Consolidated Balance Sheets with changes in fair market value recorded in other comprehensive income, net of tax. The purchases and sales of these investments are classified as investing activities in the Consolidated Statements of Cash Flows.
Property and Depreciation	Property and Depreciation—Property is recorded at cost. Depreciation is computed primarily using the straight-line method over the estimated useful lives of the assets, generally as follows: buildings 20 to 40 years, and machinery and equipment 3 to 10 years. Expenditures for significant renewals and improvements are capitalized. Ordinary repairs and maintenance are expensed as incurred. Gains or losses on property dispositions are included in other (income) expense, net and the cost and related accumulated depreciation are removed from the accounts. Depreciation expense for the years ended December 31, 2022, 2021 and 2020 was $36.7 million, $33.0 million and $27.7 million, respectively. Properties, plant, and equipment are reviewed for impairment whenever events or changes in circumstances indicate that the carrying amount of such assets or asset groups may not be recoverable.
Software Development Costs	Software Development Costs— Software development costs are costs incurred to create, enhance and deploy the Company’s broad range of wireless technology and cloud-based computing safety services. Software development costs, other than software development costs qualifying for capitalization, are expensed as incurred. Costs of computer software developed or obtained for internal use that are incurred in the preliminary project and post implementation stages are expensed as incurred. Certain costs incurred during the application and development stage, which primarily include compensation and related expenses, are capitalized. Additionally, costs of upgrades and enhancements are capitalized when it is probable that the upgrades and enhancements will result in added functionality. During 2022, 2021 and 2020, respectively, there was approximately $8.7 million, $8.1 million and $8.2 million of software development costs capitalized. The Company has unamortized computer software development costs of $16.5 million and $15.7 million as of December 31, 2022 and 2021, respectively, included in property, plant and equipment, net.
Lease Arrangements	Lessee Arrangements — At the inception of our contracts, we determine if the contract is or contains a lease. A contract is or contains a lease if it conveys the right to control the use of an identified asset for a period of time in exchange for consideration. Right-of-use assets and operating lease liabilities are recognized based on the present value of lease payments over the lease term at commencement. We use our incremental borrowing rate ("IBR") at the recognition date in determining the present value of future payments for leases that do not have a readily determinable implicit rate. Our IBR reflects a fully secured rate based on our credit rating, taking into consideration the repayment timing of the lease and any impacts due to the economic environment in which the lease operates. Our lease payments are largely fixed. Variable lease payments that depend on an index or a rate are included in the lease payments and are measured using the prevailing index or rate at the measurement date, with differences between the calculated lease payment and the actual lease payment being expensed in the period of the change. Other variable lease payments, including utilities, consumption and common area maintenance as well as repairs, maintenance and mileage overages on vehicles, are expensed during the period incurred. A majority of our real estate leases include options to extend the lease and options to early terminate the lease. Leases with an early termination option generally involve a termination payment. If we are reasonably certain to exercise an option to extend a lease, the extension period is included as part of the right-of-use asset and the lease liability. Some of our leases contain residual value guarantees. These are guarantees made to the lessor that the value of an underlying asset returned to the lessor at the end of a lease will be at least a specified amount. Our leases do not contain restrictions or covenants that restrict us from incurring other financial obligations. For our leases, we have elected to not apply the recognition requirements to leases of less than twelve months. These leases are expensed on a straight-line basis and are not included within the Company's operating lease asset or liability.
Lessor Arrangements	Lessor Arrangements — The Company derives a portion of its revenue from various leasing arrangements where the Company is the lessor, primarily fire service contracts entered into by Bristol which was acquired in January 2021 (Note 14). Such arrangements provide for monthly payments covering equipment provided, maintenance and interest. These arrangements meet the criteria to be accounted for as sales-type leases under Accounting Standards Codification ("ASC") 842 and contain both lease and non-lease components. For a component to be separate, the customer would be able to benefit from the right of use of the component separately or with other resources readily available to the customer and the right of the use is not highly dependent or highly interrelated with the other rights to use the other underlying assets or components. Revenue from equipment provided is considered a lease component and recognized with point in time revenue recognition upon lease commencement. Upon the recognition of such revenue, an asset is established for the investment in sales-type leases. Maintenance revenue, which is considered a non-lease component, and interest are recognized monthly over the lease term. Lease revenues and interest earned by the Company, included in the Consolidated Statements of Income, were not material to any of the years ended December 31, 2022, 2021 and 2020.
Goodwill and Other Intangible Assets	Goodwill and Other Intangible Assets— Intangible assets with a finite useful life are amortized on a straight-line basis over their useful lives. Indefinite lived intangible assets are assessed for possible impairment annually on October 1st or whenever circumstances change such that the recorded value of the asset may not be recoverable. We performed a quantitative assessment of the indefinite lived trade name intangible asset as outlined in ASC 350 by comparing the estimated fair value of the trade name intangible asset to its carrying value. We estimate the fair value using the relief from royalty income approach. A number of assumptions and estimates are involved in the application of the relief from royalty model, including sales volumes and prices, royalty rates and tax rates. Forecasts are based on sales generated by the underlying trade name assets and are generally based on approved business unit operating plans for the early years and historical relationships in later years. Based on these assessments, no impairments were identified during the years ended December 31, 2022, 2021 or 2020. Goodwill is not amortized, but is subject to impairment assessments. On October 1st of each year, or more frequently if indicators of impairment exist or if a decision is made to sell a business, we evaluate goodwill for impairment. Judgment is involved in determining if an indicator of impairment has occurred. Such indicators may include a decline in expected cash flows, a significant adverse change in the business climate, unanticipated competition, slower growth rates, or negative developments in equity and credit markets, among others. All goodwill is assigned to and evaluated for impairment at the reporting unit level, which is defined as an operating segment or one level below an operating segment. The evaluation of impairment involves using either a qualitative or quantitative approach as outlined in ASC Topic 350. In 2022, we performed a two-step quantitative test at October 1, 2022. Step 1 of the quantitative testing involves comparing the estimated fair value of each reporting unit to its carrying value. We estimate reporting unit fair value using a weighted average of fair values determined by discounted cash flow ("DCF") and market approach methodologies, as we believe both are important indicators of fair value. A number of assumptions and estimates are involved in the application of the DCF model, including sales volumes and prices, costs to produce, tax rates, capital spending, discount rates, and working capital changes. Cash flow forecasts are generally based on approved reporting unit operating plans for the early years and historical relationships in later years. The market approach methodology measures value through an analysis of peer companies. The analysis entails measuring the multiples of earnings before interest, taxes, depreciation and amortization (" EBITDA") at which peer companies are trading.
Revenue Recognition	Revenue Recognition— We account for revenue in accordance with ASC Topic 606, Revenue from Contracts with Customers . Revenue from the sale of products is recognized when there is persuasive evidence of an arrangement and control passes to the customer, which generally occurs either when product is shipped to the customer or, in the case of most U.S. distributor customers, when product is delivered to the distributor's delivery site. We establish our shipping terms according to local practice and market characteristics. We do not ship product unless we have an order or other documentation authorizing shipment to our customers. Our payment terms vary by the type and location of our customer and the products offered. The term between invoicing and when payment is due is not significant. Revenue is measured as the amount of consideration we expect to receive in exchange for transferring goods or providing services. Amounts billed and due from our customers are classified as receivables on the Consolidated Balance Sheets. We make appropriate provisions for credit losses which have historically been insignificant in relation to our net sales. Certain contracts with customers, primarily distributor customers, have an element of variable consideration that is estimated when revenue is recognized under the contract to the extent that it is material to the individual contract. Variable consideration includes volume incentive rebates, performance guarantees, price concessions and returns. Rebates are based on achieving a certain level of purchases and other performance criteria that are documented in established distributor programs. These rebates are estimated based on projected sales to the customer and accrued as a reduction of net sales as they are earned by the customer. The rebate accrual is reviewed monthly and adjustments are made as the estimate of projected sales changes. Product returns, including an adjustment for restocking fees if it is material, are estimated based on historical return experience and revenue is adjusted. Sales, value add and other taxes collected with revenue-producing activities and remitted to governmental authorities are excluded from revenue.
Product Warranties	Product Warranties— Estimated expenses related to product warranties and additional service actions are charged to Cost of products sold in the period in which the related revenue is recognized or when significant product quality issues are identified.
Research and Development	Research and Development— Research and development costs are expensed as incurred.
Income Taxes	Income Taxes— Deferred income taxes are recognized for temporary differences between financial and tax reporting. Deferred tax assets and liabilities are measured using enacted tax rates in effect for the year in which those temporary differences are expected to be recovered or settled. If it is more likely than not that some portion or all of a deferred tax asset will not be realized, a valuation allowance is recognized. We record tax benefits related to uncertain tax positions taken or expected to be taken on a tax return when such benefits meet a more likely than not threshold. We recognize interest related to unrecognized tax benefits in interest expense and penalties in operating expenses. Deferred taxes are booked for available cash in excess of working capital for non-U.S. subsidiaries as these earnings are not considered to be permanently reinvested.
Stock-Based Compensation	Stock-Based Compensation— We recognize expense for employee and non-employee director stock-based compensation based on the grant date fair value of the awards. Except for retirement-eligible participants, for whom there is no requisite service period, this expense is recognized ratably over the requisite service periods following the date of grant. For retirement-eligible participants, this expense is recognized over an accelerated period of at least one year.
Derivative Instruments	Derivative Instruments— We may use derivative instruments from time to time to minimize the effects of changes in currency exchange rates. We do not enter into derivative transactions for speculative purposes and do not hold derivative instruments for trading purposes. Changes in the fair value of derivative instruments designated as fair value hedges are recorded in the balance sheet as adjustments to the underlying hedged asset or liability. Changes in the fair value of derivative instruments that do not qualify for hedge accounting treatment are recognized in the Consolidated Statements of Income and Consolidated Statements of Cash Flows as Currency exchange losses, net in the current period.
Commitments and Contingencies	Commitments and Contingencies— For asserted claims and assessments, liabilities are recorded when a loss is deemed to be probable and the amount of the loss is reasonably estimable. Management assesses the probability of an unfavorable outcome with respect to asserted claims or assessments based on many factors such as the nature of the matter, available defenses and case strategy, progress of the matter, views and opinions of legal counsel and other advisors, applicability and success of appeals processes, and the outcome of similar historical matters, among others. Once an unfavorable outcome is assessed to be probable, management evaluates estimates of the potential loss, and the most reasonable loss estimate is recorded (or, if the estimate of the loss is a range, and no amount within the range is considered to be a better estimate than any other amount, the minimum amount in the range is recorded). If a loss is deemed to be reasonably possible but less than probable and/or such loss cannot be reasonably estimated, then the matter is disclosed and no liability is recorded.
Concentration of credit and business risks	Concentration of credit and business risks - We are exposed to credit risk in the event of nonpayment by customers, principally in the oil, gas and petrochemical, fire service, construction, utilities, and mining industries. Changes in these industries or other developments may significantly affect our financial performance and management's estimates. We mitigate our exposure to credit risk by performing ongoing credit evaluations and, when deemed necessary, requiring letters of credit, credit insurance, prepayments, guarantees or other collateral. No individual customer represented more than 10% of our sales or receivables as of December 31, 2022 or 2021 or for any of the three years ended December 31, 2022.

Cash and Cash Equivalents (Tabl

Cash and Cash Equivalents (Tables)	12 Months Ended
	Dec. 31, 2022
Cash and Cash Equivalents [Abstract]
Schedule of Cash and Cash Equivalents	The Company's net cash pool position consisted of the following: (In thousands) December 31, 2022 Gross cash pool position $ 72,271 Less: cash pool borrowings (65,102) Net cash pool position $ 7,169

Restructuring Charges (Tables)

Restructuring Charges (Tables)	12 Months Ended
	Dec. 31, 2022
Restructuring and Related Activities [Abstract]
Restructuring and Related Costs	Activity and reserve balances for restructuring charges by segment were as follows: (in millions) Americas International Corporate Total Reserve balances at January 1, 2020 $ 0.3 $ 5.9 $ — $ 6.2 Restructuring charges 4.7 21.9 0.8 27.4 Currency translation and other adjustments (0.1) 0.1 — — Cash payments / utilization (2.1) (8.6) (0.4) (11.1) Reserve balances at December 31, 2020 $ 2.8 $ 19.3 $ 0.4 $ 22.5 Restructuring charges 4.6 11.2 0.6 16.4 Currency translation and other adjustments (0.1) (0.2) — (0.3) Cash payments / utilization (4.0) (12.9) (0.7) (17.6) Reserve balances at December 31, 2021 $ 3.3 $ 17.4 $ 0.3 $ 21.0 Restructuring charges 2.3 5.1 0.6 8.0 Currency translation and other adjustments 0.1 (1.3) — (1.2) Cash payments / utilization (4.0) (8.4) (0.4) (12.8) Reserve balances at December 31, 2022 $ 1.7 $ 12.8 $ 0.5 $ 15.0

Inventories (Tables)

Inventories (Tables)	12 Months Ended
	Dec. 31, 2022
Inventory Disclosure [Abstract]
Schedule of Inventories	The following table sets forth the components of inventory: December 31, (In thousands) 2022 2021 Finished products $ 97,142 $ 87,657 Work in process 16,360 6,534 Raw materials and supplies 224,814 186,426 Total inventories $ 338,316 $ 280,617

Property, Plant, and Equipment

Property, Plant, and Equipment (Tables)	12 Months Ended
	Dec. 31, 2022
Property, Plant and Equipment [Abstract]
Property, Plant and Equipment	The following table sets forth the components of property, plant and equipment: December 31, (In thousands) 2022 2021 Land $ 4,884 $ 5,131 Buildings 138,618 136,272 Machinery and equipment 466,394 435,652 Construction in progress 22,097 36,552 Total 631,993 613,607 Less accumulated depreciation (424,441) (405,814) Property, plant and equipment, net $ 207,552 $ 207,793

Reclassifications Out of Accu_2

Reclassifications Out of Accumulated Other Comprehensive Loss (Tables)	12 Months Ended
	Dec. 31, 2022
Equity [Abstract]
Reclassification Out of Accumulated Other Comprehensive Loss	MSA Safety Incorporated Noncontrolling Interests (In thousands) 2022 2021 2020 2022 2021 2020 Pension and other post-retirement benefits (a) Balance at beginning of period $ (57,296) $ (115,552) $ (124,848) $ — $ — $ — Unrecognized net actuarial (losses) gains (2,862) 54,384 (6,322) — — — Tax benefit (expense) 703 (12,804) 1,997 — — — Total other comprehensive (loss) gain before reclassifications, net of tax (2,159) 41,580 (4,325) — — — Amounts reclassified from accumulated other comprehensive loss into net income: Amortization of prior service credit (Note 15) (199) (95) (216) — — — Recognized net actuarial losses (Note 15) 12,592 22,531 18,079 — — — Tax benefit (3,273) (5,760) (4,242) — — — Total amount reclassified from accumulated other comprehensive loss, net of tax, into net income 9,120 16,676 13,621 — — — Total other comprehensive income $ 6,961 $ 58,256 $ 9,296 $ — $ — $ — Balance at end of period $ (50,335) $ (57,296) $ (115,552) $ — $ — $ — Available-for-sale securities Balance at beginning of period $ (5) $ (1) $ 6 $ — $ — $ — Unrealized gain (loss) on available-for-sale securities (Note 19) 3 (4) (7) — — — Balance at end of period $ (2) $ (5) $ (1) $ — $ — $ — Foreign currency translation Balance at beginning of period $ (91,839) $ (66,844) $ (89,161) $ — $ 372 $ 213 Reclassification from accumulated other comprehensive loss into net income (b) 2,912 (c) 267 216 — — — Acquisition of noncontrolling interests in consolidated subsidiaries — — — — (280) — Foreign currency translation adjustments (19,453) (25,262) 22,101 — (92) 159 Balance at end of period $ (108,380) $ (91,839) $ (66,844) $ — $ — $ 372 (a) Reclassifications out of accumulated other comprehensive loss and into net income are included in the computation of net periodic pension and other post-retirement benefit costs (refer to Note 15—Pensions and Other Post-retirement Benefits). (b) Included in Currency exchange losses, net, within the Consolidated Statements of Income. (c) Reclassifications out of accumulated other comprehensive loss and into net income relate primarily to the approval of our plan to close a foreign subsidiary.

Capital Stock (Tables)

Capital Stock (Tables)	12 Months Ended
	Dec. 31, 2022
Equity [Abstract]
Common Stock Activity	Common stock activity is summarized as follows: Shares Dollars (Dollars in thousands) Issued Treasury Common Treasury Balance at January 1, 2020 62,081,391 (23,240,197) $ 229,127 $ (303,566) Restricted stock awards — 55,691 (773) 773 Restricted stock expense — — 7,065 — Restricted stock forfeitures — — (807) — Stock options exercised — 274,672 8,590 3,856 Stock option expense — — 153 — Stock option forfeitures — — (40) — Performance stock issued — 134,824 (1,826) 1,826 Performance stock expense — — 1,305 — Performance stock forfeitures — — (755) — Employee stock purchase plan — 6,494 654 93 Treasury shares purchased — (69,973) — (9,025) Share repurchase program — (175,000) — (20,113) Balances December 31, 2020 62,081,391 (23,013,489) $ 242,693 $ (326,156) Restricted stock awards — 53,934 (762) 762 Restricted stock expense — — 6,562 — Restricted stock forfeitures — — (765) — Stock options exercised — 122,119 4,003 1,767 Stock option expense — — 90 — Stock option forfeitures — — (9) — Performance stock issued — 64,543 (939) 939 Performance stock expense — — 13,227 — Employee stock purchase plan — 5,730 772 83 Treasury shares purchased — (37,710) — (6,171) Acquisition of noncontrolling interests in consolidated subsidiaries — — (4,751) — Balances December 31, 2021 62,081,391 (22,804,873) $ 260,121 $ (328,776) Restricted stock awards — 52,810 (711) 711 Restricted stock expense — — 7,715 — Restricted stock forfeitures — — (1,227) — Stock options exercised — 103,545 3,021 1,629 Stock option expense — — 49 — Performance stock issued — 55,447 (880) 880 Performance stock expense — — 15,843 — Performance stock forfeitures — — (2,730) — Employee stock purchase plan — 7,412 779 112 Treasury shares purchased — (31,260) — (4,021) Share repurchase program — (251,408) — (30,373) Balances December 31, 2022 62,081,391 (22,868,327) $ 281,980 $ (359,838)

Segment Information (Tables)

Segment Information (Tables)	12 Months Ended
	Dec. 31, 2022
Segment Reporting [Abstract]
Schedule of Reportable Segment Information	Reportable segment information is presented in the following table: (In thousands) Americas International Corporate Reconciling Items (1) Consolidated 2022 Net sales to external customers $ 1,043,238 $ 484,715 $ — $ — $ 1,527,953 Operating income 239,137 Restructuring charges (Note 3) 7,965 Currency exchange losses, net (Note 6) 10,255 Product liability expense (Note 20) 20,590 Acquisition related costs (a) (Note 14) 12,440 Adjusted operating income (loss) 267,392 60,923 (37,928) 290,387 Adjusted operating margin % 25.6 % 12.6 % Depreciation and amortization 34,334 12,256 520 47,110 Adjusted EBITDA 301,726 73,179 (37,408) 337,497 Adjusted EBITDA margin % 28.9 % 15.1 % Noncash items: Pension (income) expense $ (18,368) $ 6,869 $ — $ — $ (11,499) Total Assets 1,660,776 703,444 11,673 1,083 2,376,976 Capital expenditures 33,324 9,229 — — 42,553 2021 Net sales to external customers $ 908,068 $ 492,114 $ — $ — $ 1,400,182 Operating income 22,780 Restructuring charges (Note 3) 16,433 Currency exchange losses, net (Note 6) 216 Product liability expense (Note 20) 185,264 Acquisition related costs (a) (Note 14) 15,884 Adjusted operating income (loss) 202,496 73,279 (35,198) — 240,577 Adjusted operating margin % 22.3 % 14.9 % Depreciation and amortization 31,236 13,718 463 — 45,417 Adjusted EBITDA 233,732 86,997 (34,735) — 285,994 Adjusted EBITDA margin % 25.7 % 17.7 % Noncash items: Pension (income) expense $ (2,916) $ 5,790 $ — $ — $ 2,874 Total Assets 1,661,619 720,257 13,034 1,486 2,396,396 Capital expenditures 25,148 11,408 7,281 — 43,837 2020 Net sales to external customers $ 874,305 $ 473,918 $ — $ — $ 1,348,223 Operating income 171,895 Restructuring charges (Note 3) 27,381 Currency exchange losses, net (Note 6) 8,578 Product liability expense (Note 20) 39,036 Acquisition related costs (a) (Note 14) 717 COVID-19 related costs 757 Adjusted operating income (loss) 205,304 71,140 (28,080) — 248,364 Adjusted operating margin % 23.5 % 15.0 % Depreciation and amortization 26,762 12,521 391 — 39,674 Adjusted EBITDA 232,066 83,661 (27,689) — 288,038 Adjusted EBITDA margin % 26.5 % 17.7 % Noncash items: Pension expense $ 910 $ 8,113 $ — $ — $ 9,023 Total Assets 1,273,302 617,698 29,761 (1,130) 1,919,631 Capital expenditures 43,181 5,724 — — 48,905 (a) Acquisition related costs include advisory, legal, accounting, valuation, and other professional or consulting fees incurred during due diligence and integration. These costs are included in Selling, general and administrative expense in the Consolidated Statements of Income. Acquisition-related costs also include the acquisition related amortization, which is included in Cost of products sold in the Consolidated Statements of Income. (1) Reconciling items consist primarily of intercompany eliminations and items not directly attributable to operating segments.
Schedule of Geographic Information on Net Sales	Geographic information on Net sales to external customers, based on country of origin: (In thousands) 2022 2021 2020 United States $ 876,945 $ 746,825 $ 750,315 Other 651,008 653,357 597,908 Total $ 1,527,953 $ 1,400,182 $ 1,348,223
Schedule of Geographic Information on Tangible Long-Lived Assets	Geographic information on tangible long-lived assets, net, based on country of origin: (In thousands) 2022 2021 2020 United States $ 159,345 $ 155,667 $ 134,234 Other 92,349 102,304 108,837 Total $ 251,694 $ 257,971 $ 243,071
Schedule of Net Sales by Product Group	Total Net sales by product group was as follows: 2022 Consolidated Americas International (In thousands) Dollars Percent Dollars Percent Dollars Percent Breathing Apparatus $ 371,176 24% $ 265,558 25% $ 105,618 22% Fixed Gas & Flame Detection (a) 356,075 23% 227,609 22% 128,466 27% Firefighter Helmets & Protective Apparel (b) 207,759 14% 150,869 14% 56,890 12% Portable Gas Detection 173,660 11% 121,934 12% 51,726 11% Industrial Head Protection 163,253 11% 127,485 12% 35,768 7% Fall Protection 110,094 7% 69,225 7% 40,869 8% Other (c) 145,936 10% 80,558 8% 65,378 13% Total $ 1,527,953 100% $ 1,043,238 100% $ 484,715 100% 2021 Consolidated Americas International (In thousands) Dollars Percent Dollars Percent Dollars Percent Breathing Apparatus $ 322,412 23% $ 217,340 24% $ 105,072 21% Fixed Gas & Flame Detection (a) 299,018 21% 182,515 20% 116,503 24% Firefighter Helmets & Protective Apparel (b) 203,914 15% 137,086 15% 66,828 14% Portable Gas Detection 162,761 12% 109,543 12% 53,218 11% Industrial Head Protection 143,601 10% 108,869 12% 34,732 7% Fall Protection 117,731 8% 69,108 8% 48,623 10% Other (c) 150,745 11% 83,607 9% 67,138 13% Total $ 1,400,182 100% $ 908,068 100% $ 492,114 100% 2020 Consolidated Americas International (In thousands) Dollars Percent Dollars Percent Dollars Percent Breathing Apparatus $ 329,179 24% $ 220,650 25% $ 108,529 23% Fixed Gas & Flame Detection 287,414 21% 158,924 18% 128,490 27% Firefighter Helmets & Protective Apparel 162,207 12% 133,653 15% 28,554 6% Portable Gas Detection 142,581 11% 90,545 10% 52,036 11% Industrial Head Protection 125,921 9% 92,075 11% 33,846 7% Fall Protection 103,075 8% 58,060 7% 45,015 10% Other (c) 197,846 15% 120,398 14% 77,448 16% Total $ 1,348,223 100% $ 874,305 100% $ 473,918 100% (a) Fixed Gas & Flame Detection include sales from the Bacharach acquisition from July 1, 2021 onward (Americas and International). (b) Firefighter Helmets & Protective Apparel include sales from the Bristol acquisition from January 25, 2021 onward (International). (c) Other products include sales of Air Purifying Respirators.

Earnings per Share (Tables)

Earnings per Share (Tables)	12 Months Ended
	Dec. 31, 2022
Earnings Per Share [Abstract]
Schedule of Earnings per Share	Amounts attributable to MSA Safety Incorporated common shareholders: (In thousands, except per share amounts) 2022 2021 2020 Net income $ 179,630 $ 21,340 $ 124,077 Preferred stock dividends (41) (41) (41) Net income available to common equity 179,589 21,299 124,036 Dividends and undistributed earnings allocated to participating securities (30) (24) (84) Net income available to common shareholders $ 179,559 $ 21,275 $ 123,952 Basic weighted-average shares outstanding 39,232 39,173 38,885 Stock options and other stock-based awards 175 276 401 Diluted weighted-average shares outstanding 39,407 39,449 39,286 Antidilutive stock options — — — Earnings per share: Basic $ 4.58 $ 0.54 $ 3.19 Diluted $ 4.56 $ 0.54 $ 3.15

Income Taxes (Tables)

Income Taxes (Tables)	12 Months Ended
	Dec. 31, 2022
Income Tax Disclosure [Abstract]
Components of Income before Income Taxes	(In thousands) 2022 2021 2020 Components of income before income taxes U.S. income (loss) $ 170,426 $ (59,746) $ 109,726 Non-U.S. income 68,107 83,350 58,421 Income before income taxes $ 238,533 $ 23,604 $ 168,147 Provision for income taxes Current Federal $ 26,022 $ 13,179 $ 23,587 State 7,708 5,000 4,896 Non-U.S. 20,002 22,487 16,780 Total current provision $ 53,732 $ 40,666 $ 45,263 Deferred Federal $ 7,350 $ (29,631) $ (573) State 862 (7,204) (579) Non-U.S. (3,041) (2,015) (1,102) Total deferred provision (benefit) 5,171 (38,850) (2,254) Provision for income taxes $ 58,903 $ 1,816 $ 43,009
Reconciliation of U.S. Federal Income Tax Rates to Effective Tax Rate	Reconciliation of the U.S. federal income tax rates to our effective tax rate: 2022 2021 2020 U.S. federal income tax rate 21.0 % 21.0 % 21.0 % State income taxes-U.S. 2.9 % (7.0) % 2.0 % Nondeductible compensation 1.2 % 15.3 % 3.4 % Valuation allowances 0.8 % 7.0 % 0.8 % Foreign exchange on entity closures 0.3 % (0.4) % — % Taxes on non-U.S. income 0.1 % (10.9) % 2.6 % Employee share-based payments (0.8) % (18.3) % (3.9) % Research and development credit (0.4) % (5.3) % (1.2) % Taxes on non-U.S. income - U.S., Canadian & European reorganization — % — % 0.7 % Other (0.4) % 6.3 % 0.2 % Effective income tax rate 24.7 % 7.7 % 25.6 %
Components of Deferred Tax Assets and Liabilities	Components of deferred tax assets and liabilities: December 31, (In thousands) 2022 2021 Deferred tax assets Product liability $ 72,950 $ 71,709 Capitalized research and development 26,988 25,644 Net operating losses and tax credit carryforwards 10,696 9,404 Accrued expenses and other reserves 5,738 4,627 Share-based compensation 4,562 3,619 Other 5,068 4,785 Total deferred tax assets 126,002 119,788 Valuation allowances (10,017) (8,812) Net deferred tax assets 115,985 110,976 Deferred tax liabilities Goodwill and intangibles (80,383) (79,285) Property, plant and equipment (18,735) (17,088) Employee benefits (18,899) (8,985) Inventory — (1,264) Other (4,359) (2,434) Total deferred tax liabilities (122,376) (109,056) Net deferred taxes $ (6,391) $ 1,920
Reconciliation of Change In Tax Liability for Unrecognized Tax Benefits	A reconciliation of the change in the tax liability for unrecognized tax benefits for the years ended December 31, 2022 and 2021 is as follows: (In thousands) 2022 2021 Beginning balance $ 4,937 $ 8,092 Adjustments for tax positions related to the current year 100 182 Adjustments for tax positions related to prior years 155 733 Settlements — (3,211) Statute expiration — (859) Ending balance $ 5,192 $ 4,937

Stock Plans (Tables)

Stock Plans (Tables)	12 Months Ended
	Dec. 31, 2022
Share-Based Payment Arrangement [Abstract]
Schedule of Stock-Based Compensation Expense	Stock-based compensation expense was as follows: (In thousands) 2022 2021 2020 Restricted stock units $ 6,488 $ 5,797 $ 6,258 Stock options 49 81 113 Performance stock units 13,113 13,030 549 Total stock-compensation expense before income taxes 19,650 18,908 6,920 Income tax benefit 4,814 4,633 1,668 Total stock-compensation expense, net of income tax benefit $ 14,836 $ 14,275 $ 5,252
Summary of Option Activity	A summary of option activity follows: Shares Weighted Exercisable at Outstanding January 1, 2020 559,656 $ 45.78 Exercised (274,704) 45.31 Forfeited (954) 42.00 Outstanding December 31, 2020 283,998 46.23 281,593 Exercised (122,087) 47.25 Forfeited (210) 43.75 Outstanding December 31, 2021 161,701 45.47 161,347 Exercised (103,545) 44.91 Outstanding December 31, 2022 58,156 $ 46.48 58,156
Characteristics of Outstanding and Exercisable Stock Options	For various exercise price ranges, characteristics of outstanding and exercisable stock options at December 31, 2022 were as follows: Stock Options Outstanding Range of Exercise Prices Shares Weighted-Average Exercise Price Remaining Life $33.01 – $45.00 33,148 $ 44.50 2.41 $45.01 – $57.93 25,008 49.10 2.21 $33.01 – $57.93 58,156 $ 46.48 2.32 Stock Options Exercisable Range of Exercise Prices Shares Weighted-Average Exercise Price Remaining Life $33.01 – $45.00 33,148 $ 44.50 2.41 $45.01 – $57.93 25,008 49.10 2.21 $33.01 – $57.93 58,156 $ 46.48 2.32
Summary of Restricted Stock Unit Activity	A summary of restricted stock unit activity follows: Shares Weighted Average Unvested January 1, 2020 172,701 $ 90.38 Granted 51,468 124.61 Vested (70,399) 81.58 Forfeited (7,579) 106.54 Unvested at December 31, 2020 146,191 105.83 Granted 43,146 167.13 Vested (65,225) 95.43 Forfeited (5,769) 132.54 Unvested at December 31, 2021 118,343 132.62 Granted 87,697 130.28 Vested (51,369) 113.96 Forfeited (8,785) 139.66 Unvested at December 31, 2022 145,886 $ 137.36
Summary of Performance Stock Unit Activity	A summary of performance stock unit activity follows: Shares Weighted Average Unvested at January 1, 2020 238,035 $ 85.39 Granted 67,479 127.48 Vested (132,036) 73.00 Performance adjustments 33,499 72.36 Forfeited (6,765) 111.60 Unvested at December 31, 2020 200,212 104.69 Granted 52,309 175.59 Vested (64,543) 85.41 Performance adjustments 5,357 88.45 Unvested at December 31, 2021 193,335 129.86 Granted 81,504 142.38 Vested (55,447) 101.38 Performance adjustments (22,147) 99.84 Forfeited (18,485) 147.66 Unvested at December 31, 2022 178,760 $ 146.28

Long-Term Debt (Tables)

Long-Term Debt (Tables)	12 Months Ended
	Dec. 31, 2022
Debt Disclosure [Abstract]
Schedule of Outstanding Debt	December 31, (In thousands) 2022 2021 2016 Senior Notes payable through 2031, 3.40%, net of debt issuance costs $ 66,379 $ 74,203 2021 Senior Notes payable through 2036, 2.69%, net of debt issuance costs 99,711 99,694 2021 Senior Notes payable through 2036, 2.69%, net of debt issuance costs 99,711 99,694 Senior revolving credit facility maturing in 2026, net of debt issuance costs 307,031 324,060 Total 572,832 597,651 Amounts due within one year 7,387 — Long-term debt, net of debt issuance costs $ 565,445 $ 597,651

Goodwill and Intangible Assets

Goodwill and Intangible Assets (Tables)	12 Months Ended
	Dec. 31, 2022
Goodwill and Intangible Assets Disclosure [Abstract]
Changes in Goodwill	Changes in goodwill during the years ended December 31, 2022 and 2021, were as follows: (In thousands) 2022 2021 Balance at January 1, 2022 $ 636,858 $ 443,272 Additions — 199,454 Measurement period adjustment (1,041) — Currency translation (15,195) (5,868) Balance at December 31. 2022 $ 620,622 $ 636,858
Schedule of Finite-Lived Intangible Assets	Changes in intangible assets, net of accumulated amortization, during the years ended December 31, 2022 and 2021, were as follows: (In thousands) 2022 2021 Net balance at January 1, 2022 $ 306,948 $ 161,051 Additions — 164,426 Amortization expense (19,137) (16,814) Currency translation (5,958) (1,715) Net balance at December 31, 2022 $ 281,853 $ 306,948 (In millions) December 31, 2022 December 31, 2021 Intangible Assets: Weighted Average Useful Life (years) Gross Carrying Amount Accumulated Amortization and Reserves Net Carrying Amount Gross Carrying Amount Accumulated Amortization and Reserves Net Carrying Amount Customer relationships 19 $ 178.7 $ (35.3) $ 143.4 $ 185.7 $ (27.9) $ 157.8 Distribution agreements 20 65.8 (26.9) 38.9 66.1 (23.8) 42.3 Technology related assets 8 49.5 (29.3) 20.2 50.4 (25.5) 24.9 Patents, trademarks and copyrights 16 34.0 (14.8) 19.2 35.2 (13.6) 21.6 License agreements 5 5.4 (5.3) 0.1 5.4 (5.3) 0.1 Other 3 3.3 (3.2) 0.1 3.3 (3.0) 0.3 Total 17 $ 336.7 $ (114.8) $ 221.9 $ 346.1 $ (99.1) $ 247.0
Schedule of Indefinite-Lived Intangible Assets	Changes in intangible assets, net of accumulated amortization, during the years ended December 31, 2022 and 2021, were as follows: (In thousands) 2022 2021 Net balance at January 1, 2022 $ 306,948 $ 161,051 Additions — 164,426 Amortization expense (19,137) (16,814) Currency translation (5,958) (1,715) Net balance at December 31, 2022 $ 281,853 $ 306,948 (In millions) December 31, 2022 December 31, 2021 Intangible Assets: Weighted Average Useful Life (years) Gross Carrying Amount Accumulated Amortization and Reserves Net Carrying Amount Gross Carrying Amount Accumulated Amortization and Reserves Net Carrying Amount Customer relationships 19 $ 178.7 $ (35.3) $ 143.4 $ 185.7 $ (27.9) $ 157.8 Distribution agreements 20 65.8 (26.9) 38.9 66.1 (23.8) 42.3 Technology related assets 8 49.5 (29.3) 20.2 50.4 (25.5) 24.9 Patents, trademarks and copyrights 16 34.0 (14.8) 19.2 35.2 (13.6) 21.6 License agreements 5 5.4 (5.3) 0.1 5.4 (5.3) 0.1 Other 3 3.3 (3.2) 0.1 3.3 (3.0) 0.3 Total 17 $ 336.7 $ (114.8) $ 221.9 $ 346.1 $ (99.1) $ 247.0

Acquisitions (Tables)

Acquisitions (Tables)	12 Months Ended
	Dec. 31, 2022
Business Combination and Asset Acquisition [Abstract]
Schedule of Preliminary Fair Values of the Assets Acquired and Liabilities Assumed	The following table summarizes the fair values of the Bacharach assets acquired and liabilities assumed at the date of the acquisition: (In millions) July 1, 2021 Current assets (including cash of $11.7 million) $ 32.1 Property, plant and equipment and other noncurrent assets 4.3 Customer relationships 123.0 Developed technology 20.5 Trade name 15.0 Goodwill 193.5 Total assets acquired 388.4 Total liabilities assumed (47.3) Net assets acquired $ 341.1 The following table summarizes the fair values of the Bristol assets acquired and liabilities assumed at the date of the acquisition: (In millions) January 25, 2021 Current assets (including cash of $13.3 million) $ 37.1 Net investment in sales-type leases, noncurrent 29.0 Property, plant and equipment and other noncurrent assets 12.0 Customer relationships 4.5 Trade name and other intangible assets 1.4 Goodwill 4.9 Total assets acquired 88.9 Total liabilities assumed (12.6) Net assets acquired $ 76.3
Pro Forma Financial Information	Year Ended December 31, (In millions, except per share amounts) 2021 2020 Net sales $ 1,437.9 $ 1,470.4 Net income 10.2 114.6 Basic earnings per share 0.26 2.94 Diluted earnings per share 0.26 2.91

Pensions and Other Post-retir_2

Pensions and Other Post-retirement Benefits (Tables)	12 Months Ended
	Dec. 31, 2022
Retirement Benefits [Abstract]
Schedule of Defined Benefit Pension Plans and Other Postretirement Benefits Plan	Defined benefit pension plan and other post-retirement benefits plan information is provided in the following tables: Pension Benefits Other Benefits (In thousands) 2022 2021 2022 2021 Change in Benefit Obligations Benefit obligations at January 1 $ 654,362 $ 670,857 $ 29,831 $ 32,225 Service cost 12,281 12,910 327 398 Interest cost 14,377 11,518 590 476 Participant contributions 257 287 259 345 Plan amendments 154 (243) — — Actuarial gains (a) (156,214) (10,277) (5,884) (1,518) Benefits paid (26,377) (25,117) (2,585) (3,021) Curtailments (286) (439) — — Settlements (260) (3,190) — — Transfers (b) — (19,312) — — Acquisitions — 26,231 — 926 Currency translation (7,929) (8,863) — — Benefit obligations at December 31 $ 490,365 $ 654,362 $ 22,538 $ 29,831 Change in Plan Assets Fair value of plan assets at January 1 $ 651,986 $ 586,822 $ — $ — Actual return on plan assets (115,105) 80,366 — — Employer contributions 5,032 5,543 2,326 2,676 Participant contributions 257 287 259 345 Acquisitions — 25,476 — — Settlements (260) (1,365) — — Benefits paid (26,377) (25,117) (2,585) (3,021) Transfers (b) — (19,312) — — Administrative expenses paid (54) (67) — — Currency translation (1,261) (647) — — Fair value of plan assets at December 31 $ 514,218 $ 651,986 $ — $ — Funded Status Funded status at December 31 $ 23,853 $ (2,376) $ (22,538) $ (29,831) Unrecognized prior service credit (cost) 1,224 1,186 (429) (767) Unrecognized net actuarial losses 90,212 95,674 6,445 13,570 Net amount recognized $ 115,289 $ 94,484 $ (16,522) $ (17,028) Amounts Recognized in the Balance Sheets Noncurrent assets $ 141,643 $ 163,283 $ — $ — Current liabilities (3,712) (6,569) (2,226) (2,739) Noncurrent liabilities (114,078) (159,090) (20,312) (27,092) Net amount recognized $ 23,853 $ (2,376) $ (22,538) $ (29,831) Amounts Recognized in Accumulated Other Comprehensive Loss Net actuarial losses $ 90,212 $ 95,674 $ 6,445 $ 13,570 Prior service cost (credit) 1,224 1,186 (429) (767) Total (before tax effects) $ 91,436 $ 96,860 $ 6,016 $ 12,803 Accumulated Benefit Obligations for all Defined Benefit Plans $ 459,630 $ 608,436 $ — $ — (a) Actuarial gains for both periods relate primarily to the increase/decrease in discount rates used in measuring plan obligations as of December 31, 2022 and 2021, respectively. (b) Transfers consist of Netherlands defined benefit plan conversion to a defined contribution plan.
Components of Net Periodic Benefit (Credit) Cost	Pension Benefits Other Benefits (In thousands) 2022 2021 2020 2022 2021 2020 Components of Net Periodic Benefit (Income) Cost Service cost $ 12,281 $ 12,910 $ 12,094 $ 327 $ 398 $ 396 Interest cost 14,377 11,518 14,905 590 476 716 Expected return on plan assets (49,646) (37,368) (34,029) — — — Amortization of prior service cost (credit) 139 164 178 (338) (358) (394) Recognized net actuarial losses 11,704 17,458 15,799 1,242 1,597 1,145 Settlement/curtailment (gain) loss (354) (2,234) (b) 1,135 (b) — — — Net periodic benefit (income) cost (a) $ (11,499) $ 2,448 $ 10,082 $ 1,821 $ 2,113 $ 1,863 (a) Components of net periodic benefit (income) cost other than service cost are included in the line item Other income, net, and service costs are included in the line items Cost of products sold and Selling, general and administrative in the Consolidated Statements of Income. (b) Relates primarily to the conversion of our Netherlands pension plan into a defined contribution plan and is included in "Restructuring charges" in the Consolidated Statements of Income.
Schedule of Pension Plans with Accumulated Benefit Obligation in Excess of Plan Assets	Information for pension plans with an accumulated benefit obligation in excess of plan assets: Pension Benefits (In thousands) 2022 2021 Aggregate accumulated benefit obligations (ABO) $ 116,531 $ 181,511 Aggregate fair value of plan assets 4,454 22,265
Schedule of Pension Plans with Projected Benefit Obligation in Excess of Plan Assets	Information for pension plans with a projected benefit obligation in excess of plan assets: Pension Benefits (In thousands) 2022 2021 Aggregate projected benefit obligations (PBO) $ 122,229 $ 187,924 Aggregate fair value of plan assets 4,454 22,265
Schedule of Assumptions Used to Determine Benefit Obligations and Net Periodic Benefit Cost	Pension Benefits Other Benefits 2022 2021 2022 2021 Assumptions used to determine benefit obligations Average discount rate 5.01 % 2.70 % 5.09 % 2.66 % Rate of compensation increase 4.61 % 4.58 % 3.00 % 2.91 % Assumptions used to determine net periodic benefit cost Average discount rate - Service cost 3.12 % 2.80 % 2.84 % 2.42 % Average discount rate - Interest cost 2.17 % 1.69 % 2.04 % 1.48 % Expected return on plan assets 8.77 % 7.13 % — — Rate of compensation increase 4.58 % 2.90 % 2.91 % 3.00 %
Schedule of Expected Return on Assets for Net Periodic Pension Cost	Pension Plan Assets at 2022 2021 Equity securities 56 % 51 % Fixed income securities 26 25 Pooled investment funds 15 22 Cash and cash equivalents 2 1 Insurance contracts 1 1 Total 100 % 100 %
Summary of Pension Plan Assets Measured at Fair Value on a Recurring Basis by Fair Value Hierarchy	The fair values at December 31, 2022, were as follows: Fair Value (In thousands) Total NAV Quoted Prices Significant Significant Equity securities $ 288,006 $ 44,583 $ 243,423 $ — $ — Fixed income securities 132,659 — 63,522 69,137 — Pooled investment funds 79,853 79,853 — — — Cash and cash equivalents 9,246 7,954 1,292 — — Insurance contracts 4,454 — — — 4,454 Total $ 514,218 $ 132,390 $ 308,237 $ 69,137 $ 4,454 The fair values of the Company's pension plan assets at December 31, 2021, were as follows: Fair Value (In thousands) Total NAV Quoted Prices Significant Significant Equity securities $ 329,795 $ 66,897 $ 262,898 $ — $ — Fixed income securities 161,965 — 86,543 75,422 — Pooled investment funds 146,081 146,081 — — — Cash and cash equivalents 9,934 8,637 1,297 — — Insurance contracts 4,211 — — — 4,211 Total $ 651,986 $ 221,615 $ 350,738 $ 75,422 $ 4,211
Schedule of Reconciliation of Level 3 Assets	The following table presents a reconciliation of Level 3 assets: (In thousands) Insurance Balance January 1, 2021 $ 24,396 Net realized and unrealized gains (881) Net purchases, issuances and settlements (19,304) Balance December 31, 2021 4,211 Net realized and unrealized gains (119) Net purchases, issuances and settlements 362 Balance December 31, 2022 $ 4,454
Schedule of Level 3 Assets Recognized in Accumulated Other Comprehensive Loss	The following table presents amounts related to Level 3 assets recognized in accumulated other comprehensive loss: (In thousands) Insurance Net actuarial losses $ (1,781) Prior service cost 744 Total (before tax effects) $ (1,037)

Other Income, Net (Tables)

Other Income, Net (Tables)	12 Months Ended
	Dec. 31, 2022
Other Income and Expenses [Abstract]
Schedule of Other Income, Net	Year ended December 31, (In thousands) 2022 2021 2020 Components of net periodic benefit (income) cost other than service cost (Note 15) $ 22,286 $ 8,321 $ 1,680 Interest income 4,155 3,256 3,498 Loss on asset write-down and dispositions, net (6,290) (788) (236) Other, net 905 793 742 Total other income, net $ 21,056 $ 11,582 $ 5,684

Leases (Tables)

Leases (Tables)	12 Months Ended
	Dec. 31, 2022
Leases [Abstract]
Components of Lease Cost	As a lessee, we have various operating lease agreements primarily related to real estate, vehicles and office and plant equipment. The components of lease expense were as follows: Year Ended December 31, (In thousands, except percentage and year amounts) 2022 2021 Lease cost: Operating lease cost recognized as rent expense $ 14,970 $ 14,230 Total lease cost $ 14,970 $ 14,230 Other Information Cash paid for amounts included in the measurement of lease liabilities: Operating cash flows related to operating leases $ 14,906 $ 14,440 Non-cash other information: Right-of-use assets obtained in exchange for new operating lease liabilities $ 6,418 $ 21,857 Right-of-use assets obtained in acquisitions $ — $ 4,795 December 31, 2022 2021 Weighted-average remaining lease term (in years): Operating leases 14 14 Weighted-average discount rate: Operating leases 2.66 % 2.49 %
Future Lease Payments	At December 31, 2022, future lease payments under operating leases were as follows: (In thousands) Operating Leases 2023 $ 10,043 2024 7,480 2025 5,200 2026 4,061 2027 3,428 After 2027 22,031 $ 52,243 Less: Imputed interest 7,938 Present value of operating lease liabilities 44,305 Less: Current portion operating lease liabilities (a) 8,960 Noncurrent operating lease liabilities $ 35,345 (a) Included in Accrued restructuring and other current liabilities on the Consolidated Balance Sheets.

Derivative Financial Instrume_2

Derivative Financial Instruments (Tables)	12 Months Ended
	Dec. 31, 2022
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Balance Sheet Location and Fair Value of Assets and Liabilities Associated with Derivative Financial Instruments	The following table presents the Consolidated Balance Sheets location and fair value of assets and liabilities associated with derivative financial instruments: December 31, (In thousands) 2022 2021 Derivatives not designated as hedging instruments: Foreign exchange contracts: prepaid expenses and other current assets $ 724 $ 619 Foreign exchange contracts: accrued restructuring and other current liabilities $ 85 $ 128
Income Statement Location and Impact of Derivative Financial Instruments	The following table presents the Consolidated Statements of Income and Consolidated Statements of Cash Flows location and impact of derivative financial instruments: Year ended 2022 2021 Derivatives not designated as hedging instruments: Foreign exchange contracts: currency exchange losses, net $ 6,656 $ 5,107

Contingencies (Tables)

Contingencies (Tables)	12 Months Ended
	Dec. 31, 2022
Commitments and Contingencies Disclosure [Abstract]
Summary of Cumulative Trauma Product Liability Claims Activity	2022 2021 2020 Open lawsuits, beginning of period 1,675 1,622 1,605 New lawsuits 300 432 402 Settled and dismissed lawsuits (475) (379) (385) Open lawsuits, end of period 1,500 1,675 1,622 2022 2021 2020 Asserted claims, beginning of period 4,554 2,878 2,456 New claims 520 2,134 917 Settled, inactive and dismissed claims (1,020) (458) (495) Asserted claims, end of period 4,054 4,554 2,878
Summary of Insurance Receivable Balances and Activity Related to Product Liability Losses	A summary of insurance receivables balance and activity related to cumulative trauma product liability losses is as follows: (In millions) 2022 2021 Balance beginning of period $ 130.2 $ 97.0 Additions 1.8 43.5 Collections (4.4) (10.3) Balance end of period $ 127.6 $ 130.2
Summary of Notes Receivable from Insurance Companies Activity During the Year	A summary of notes receivables from insurance companies balance is as follows: December 31, (In millions) 2022 2021 Balance beginning of period $ 48.5 $ 52.3 Additions 1.2 1.3 Collections (5.1) (5.1) Balance end of period $ 44.6 $ 48.5
Schedule of Product Warranty Liability	The following table reconciles the changes in the Company's accrued warranty reserve: December 31, (In thousands) 2022 2021 2020 Beginning warranty reserve $ 12,423 $ 11,428 $ 12,715 Warranty payments (10,631) (8,987) (10,861) Warranty claims 14,544 10,225 10,233 Provision for product warranties and other adjustments (1,106) (243) (659) Ending warranty reserve $ 15,230 $ 12,423 $ 11,428

Quarterly Financial Informati_2

Quarterly Financial Information (Unaudited) (Tables)	12 Months Ended
	Dec. 31, 2022
Quarterly Financial Information Disclosure [Abstract]
Schedule Of Quarterly Financial Information	2022 Quarters (In thousands, except per share amounts) 1st 2nd 3rd 4th Year Net sales $ 330,692 $ 372,313 $ 381,694 $ 443,254 $ 1,527,953 Gross profit 142,784 164,400 169,395 197,252 673,831 Net income attributable to MSA Safety Incorporated 35,542 47,693 44,906 51,489 179,630 Earnings per share (1) Basic $ 0.90 $ 1.21 $ 1.15 $ 1.31 $ 4.58 Diluted 0.90 1.21 1.14 1.31 4.56 2021 Quarters (In thousands, except earnings per share) 1st 2nd 3rd 4th Year Net sales $ 308,428 $ 341,289 $ 340,197 $ 410,268 $ 1,400,182 Gross profit 134,785 153,000 149,439 178,124 615,348 Net income (loss) attributable to MSA Safety Incorporated 36,450 25,186 21,180 (61,476) 21,340 Earnings (loss) per share (1) Basic $ 0.93 $ 0.64 $ 0.54 $ (1.57) $ 0.54 Diluted 0.92 0.64 0.54 (1.57) 0.54 (1) Per share amounts are calculated independently for each period presented; therefore, the sum of the quarterly per share amounts may not equal the per share amounts for the year.

Significant Accounting Polici_3

Significant Accounting Policies - Additional Information (Detail) - USD ($)	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Significant Accounting Policies [Line Items]
Money market funds	$ 1,900,000	$ 8,700,000
Restricted cash balances	$ 1,500,000	500,000
Inventory, write-down, excess period	24 months
Depreciation	$ 36,700,000	33,000,000	$ 27,700,000
Unamortized software development costs	8,700,000	8,100,000	8,200,000
Software development cost depreciation expense	7,900,000	4,900,000	1,500,000
Net investment in sales-type lease, current	$ 5,700,000
Net investment in sales-type lease, noncurrent		19,400,000
Term of contract	7 years
Goodwill, impairment loss	$ 0	$ 0	$ 0
Retirement eligible participants, expense, accelerated period (at least)	1 year
Buildings | Minimum
Significant Accounting Policies [Line Items]
Useful lives	20 years
Buildings | Maximum
Significant Accounting Policies [Line Items]
Useful lives	40 years
Machinery and equipment | Minimum
Significant Accounting Policies [Line Items]
Useful lives	3 years
Machinery and equipment | Maximum
Significant Accounting Policies [Line Items]
Useful lives	10 years
Software development
Significant Accounting Policies [Line Items]
Useful lives	3 years

Cash and Cash Equivalents (Deta

Cash and Cash Equivalents (Detail) $ in Thousands	Dec. 31, 2022 USD ($)
Cash and Cash Equivalents [Abstract]
Gross cash pool position	$ 72,271
Less: cash pool borrowings	(65,102)
Net cash pool position	$ 7,169

Restructuring Charges - Additio

Restructuring Charges - Additional Information (Detail) $ in Thousands	12 Months Ended
	Dec. 31, 2022 USD ($) position	Dec. 31, 2021 USD ($) position	Dec. 31, 2020 USD ($) position
Restructuring Cost and Reserve [Line Items]
Restructuring charges (Note 3)	$ 7,965	$ 16,433	$ 27,381
Corporate
Restructuring Cost and Reserve [Line Items]
Restructuring charges (Note 3)		$ 600	$ 800
Employee severance
Restructuring Cost and Reserve [Line Items]
Number of positions eliminated (in positions) | position	151	143	121
Employee severance | Corporate
Restructuring Cost and Reserve [Line Items]
Restructuring charges (Note 3)	$ 600
Number of positions eliminated (in positions) | position	4	6
Employee severance | Americas
Restructuring Cost and Reserve [Line Items]
Restructuring charges (Note 3)	$ 2,300	$ 4,600	$ 4,700
Number of positions eliminated (in positions) | position	24	66	42
Employee severance | International
Restructuring Cost and Reserve [Line Items]
Restructuring charges (Note 3)	$ 5,100	$ 11,200	$ 21,900
Number of positions eliminated (in positions) | position	123	71	76

Restructuring Charges - Roll Fo

Restructuring Charges - Roll Forward (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Restructuring Reserve [Roll Forward]
Restructuring reserve, beginning balance	$ 21	$ 22.5	$ 6.2
Restructuring charges	8	16.4	27.4
Currency translation and other adjustments	(1.2)	(0.3)	0
Cash payments / utilization	(12.8)	(17.6)	(11.1)
Restructuring reserve, ending balance	15	21	22.5
Corporate
Restructuring Reserve [Roll Forward]
Restructuring reserve, beginning balance	0.3	0.4	0
Restructuring charges	0.6	0.6	0.8
Currency translation and other adjustments	0	0	0
Cash payments / utilization	(0.4)	(0.7)	(0.4)
Restructuring reserve, ending balance	0.5	0.3	0.4
Americas
Restructuring Reserve [Roll Forward]
Restructuring reserve, beginning balance	3.3	2.8	0.3
Restructuring charges	2.3	4.6	4.7
Currency translation and other adjustments	0.1	(0.1)	(0.1)
Cash payments / utilization	(4)	(4)	(2.1)
Restructuring reserve, ending balance	1.7	3.3	2.8
International
Restructuring Reserve [Roll Forward]
Restructuring reserve, beginning balance	17.4	19.3	5.9
Restructuring charges	5.1	11.2	21.9
Currency translation and other adjustments	(1.3)	(0.2)	0.1
Cash payments / utilization	(8.4)	(12.9)	(8.6)
Restructuring reserve, ending balance	$ 12.8	$ 17.4	$ 19.3

Inventories - Schedule of Inven

Inventories - Schedule of Inventories (Detail) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Inventory Disclosure [Abstract]
Finished products	$ 97,142	$ 87,657
Work in process	16,360	6,534
Raw materials and supplies	224,814	186,426
Total inventories	$ 338,316	$ 280,617

Property, Plant, and Equipmen_2

Property, Plant, and Equipment (Detail) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Property, Plant and Equipment [Abstract]
Unamortized computer software costs	$ 16,500	$ 15,700
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	631,993	613,607
Less accumulated depreciation	(424,441)	(405,814)
Property, plant and equipment, net	207,552	207,793
Land
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	4,884	5,131
Buildings
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	138,618	136,272
Machinery and equipment
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	466,394	435,652
Construction in progress
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	$ 22,097	$ 36,552

Reclassifications Out of Accu_3

Reclassifications Out of Accumulated Other Comprehensive Loss (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Balance at beginning of period	$ 834,388
Total amount reclassified from accumulated other comprehensive loss, net of tax, into net income	2,912	$ 267	$ 216
Unrealized gain (loss) on available-for-sale securities (Note 19)	3	(4)	(7)
Foreign currency translation adjustments	(9,577)	33,165	31,765
Balance at end of period	923,741	834,388
Accumulated defined benefit plans adjustment attributable to parent
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Balance at beginning of period	(57,296)	(115,552)	(124,848)
Tax benefit (expense)	703	(12,804)	1,997
Total other comprehensive (loss) gain before reclassifications, net of tax	(2,159)	41,580	(4,325)
Tax benefit	(3,273)	(5,760)	(4,242)
Total amount reclassified from accumulated other comprehensive loss, net of tax, into net income	9,120	16,676	13,621
Foreign currency translation adjustments	6,961	58,256	9,296
Balance at end of period	(50,335)	(57,296)	(115,552)
Accumulated defined benefit plans adjustment, net prior service attributable to parent
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Amounts reclassified from Accumulated other comprehensive loss	(199)	(95)	(216)
Accumulated defined benefit plans adjustment, net gain (loss) attributable to parent
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Unrecognized net actuarial (losses) gains	(2,862)	54,384	(6,322)
Amounts reclassified from Accumulated other comprehensive loss	12,592	22,531	18,079
Accumulated defined benefit plans adjustment attributable to noncontrolling interest
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Balance at beginning of period	0	0	0
Tax benefit (expense)	0	0	0
Total other comprehensive (loss) gain before reclassifications, net of tax	0	0	0
Tax benefit	0	0	0
Total amount reclassified from accumulated other comprehensive loss, net of tax, into net income	0	0	0
Foreign currency translation adjustments	0	0	0
Balance at end of period	0	0	0
Accumulated defined benefit plans adjustment, net prior service attributable to noncontrolling interest
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Amounts reclassified from Accumulated other comprehensive loss	0	0	0
Accumulated defined benefit plans adjustment, net gain (loss) attributable to noncontrolling interest
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Unrecognized net actuarial (losses) gains	0	0	0
Amounts reclassified from Accumulated other comprehensive loss	0	0	0
Accumulated net investment gain (loss) attributable to parent
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Balance at beginning of period	(5)	(1)	6
Unrealized gain (loss) on available-for-sale securities (Note 19)	3	(4)	(7)
Balance at end of period	(2)	(5)	(1)
Accumulated net investment gain (loss) attributable to noncontrolling interest
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Balance at beginning of period	0	0	0
Unrealized gain (loss) on available-for-sale securities (Note 19)	0	0	0
Balance at end of period	0	0	0
Accumulated foreign currency adjustment attributable to parent
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Balance at beginning of period	(91,839)	(66,844)	(89,161)
Total amount reclassified from accumulated other comprehensive loss, net of tax, into net income	2,912	267	216
Foreign currency translation adjustments	(19,453)	(25,262)	22,101
Acquisition of noncontrolling interests in consolidated subsidiaries	0	0	0
Balance at end of period	(108,380)	(91,839)	(66,844)
Accumulated foreign currency adjustment attributable to noncontrolling interest
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Balance at beginning of period	0	372	213
Total amount reclassified from accumulated other comprehensive loss, net of tax, into net income	0	0	0
Foreign currency translation adjustments	0	(92)	159
Acquisition of noncontrolling interests in consolidated subsidiaries	0	(280)	0
Balance at end of period	$ 0	$ 0	$ 372

Capital Stock - Narrative (Deta

Capital Stock - Narrative (Detail) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Capital Unit [Line Items]
Preferred stock, par value (in dollars per share)	$ 50,000	$ 50,000
Cumulative preferred nonvoting stock (as a percent)	4.50%	4.50%
Treasury stock, shares (in shares)	22,868,327	22,804,873
Treasury shares, at cost	$ 361,438	$ 330,376
Common stock, shares authorized (in shares)	180,000,000	180,000,000
Common stock, par value (in dollars per share)	$ 0
Common stock, shares issued (in shares)	62,081,391	62,081,391
Common stock, shares, outstanding (in shares)	39,213,064	39,276,518
Cumulative preferred stock
Capital Unit [Line Items]
Preferred stock, shares authorized (in shares)	100,000
Preferred stock, par value (in dollars per share)	$ 50
Cumulative preferred nonvoting stock (as a percent)	4.50%
Preferred stock, callable price per share (in dollars per share)	$ 52.50
Preferred stock, shares issued (in shares)	71,340	71,340
Treasury stock, shares (in shares)	52,998	52,998
Purchase of treasury shares (in shares)	0
Second cumulative preferred voting stock
Capital Unit [Line Items]
Preferred stock, shares authorized (in shares)	1,000,000
Preferred stock, par value (in dollars per share)	$ 10
Preferred stock, shares issued (in shares)	0	0
Common stock
Capital Unit [Line Items]
Purchase of treasury shares (in shares)	251,408	0	175,000
Common stock, shares issued (in shares)	62,081,391	62,081,391
Common stock, value, issued (up to)	$ 100,000
Treasury stock
Capital Unit [Line Items]
Reissued shares (in shares)	219,214	246,376
Preferred stock
Capital Unit [Line Items]
Treasury shares, at cost	$ 1,800

Capital Stock - Schedule of Com

Capital Stock - Schedule of Common Stock Activity (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Common Stock Activity [Roll Forward]
Beginning balance (in shares)	39,276,518
Beginning balance	$ 260,121
Stock options exercised (in shares)	103,545	122,087	274,704
Stock option forfeitures (in shares)		(210)	(954)
Ending balance	$ 281,980	$ 260,121
Ending balance (in shares)	39,213,064	39,276,518
Common stock
Common Stock Activity [Roll Forward]
Beginning balance (in shares)	62,081,391	62,081,391	62,081,391
Beginning balance	$ 260,121	$ 242,693	$ 229,127
Acquisition of noncontrolling interest in consolidated subsidiaries (Note 14) (in shares)	0
Share repurchase program	$ 0
Ending balance	$ 281,980	$ 260,121	$ 242,693
Ending balance (in shares)	62,081,391	62,081,391	62,081,391
Treasury Cost
Common Stock Activity [Roll Forward]
Beginning balance (in shares)	22,804,873	23,013,489	23,240,197
Beginning balance	$ (328,776)	$ (326,156)	$ (303,566)
Acquisition of noncontrolling interest in consolidated subsidiaries (Note 14) (in shares)	(251,408)
Share repurchase program	$ (30,373)
Ending balance	$ (359,838)	$ (328,776)	$ (326,156)
Ending balance (in shares)	22,868,327	22,804,873	23,013,489
Restricted Stock | Common stock
Common Stock Activity [Roll Forward]
Restricted stock awards (in shares)	0	0	0
Restricted stock awards	$ (711)	$ (762)	$ (773)
Restricted stock expense (in shares)	0	0	0
Restricted stock expense	$ 7,715	$ 6,562	$ 7,065
Restricted stock forfeitures (in shares)	0	0	0
Restricted stock forfeitures	$ (1,227)	$ (765)	$ (807)
Restricted Stock | Treasury Cost
Common Stock Activity [Roll Forward]
Restricted stock awards (in shares)	52,810	53,934	55,691
Restricted stock awards	$ 711	$ 762	$ 773
Restricted stock expense (in shares)	0	0	0
Restricted stock expense	$ 0	$ 0	$ 0
Restricted stock forfeitures (in shares)	0	0	0
Restricted stock forfeitures	$ 0	$ 0	$ 0
Stock options | Common stock
Common Stock Activity [Roll Forward]
Restricted stock expense (in shares)	0	0	0
Restricted stock expense	$ 49	$ 90	$ 153
Restricted stock forfeitures		$ (9)	$ (40)
Stock options exercised (in shares)	0	0	0
Stock options exercised	$ 3,021	$ 4,003	$ 8,590
Stock option forfeitures (in shares)		0	0
Stock options | Treasury Cost
Common Stock Activity [Roll Forward]
Restricted stock expense (in shares)	0	0	0
Restricted stock expense	$ 0	$ 0	$ 0
Restricted stock forfeitures		$ 0	$ 0
Stock options exercised (in shares)	103,545	122,119	274,672
Stock options exercised	$ 1,629	$ 1,767	$ 3,856
Stock option forfeitures (in shares)		0	0
Performance stock | Common stock
Common Stock Activity [Roll Forward]
Restricted stock expense (in shares)	0	0	0
Restricted stock expense	$ 15,843	$ 13,227	$ 1,305
Restricted stock forfeitures (in shares)	0		0
Restricted stock forfeitures	$ (2,730)		$ (755)
Performance stock issued (in shares)	0	0	0
Performance stock issued	$ (880)	$ (939)	$ (1,826)
Performance stock | Treasury Cost
Common Stock Activity [Roll Forward]
Restricted stock expense (in shares)	0	0	0
Restricted stock expense	$ 0	$ 0	$ 0
Restricted stock forfeitures (in shares)	0		0
Restricted stock forfeitures	$ 0		$ 0
Performance stock issued (in shares)	55,447	64,543	134,824
Performance stock issued	$ 880	$ 939	$ 1,826
Employee Stock Purchase Plan | Common stock
Common Stock Activity [Roll Forward]
Employee stock purchase plan (in shares)	0	0	0
Employee stock purchase plan	$ 779	$ 772	$ 654
Employee Stock Purchase Plan | Treasury Cost
Common Stock Activity [Roll Forward]
Employee stock purchase plan (in shares)	7,412	5,730	6,494
Employee stock purchase plan	$ 112	$ 83	$ 93
Treasury shares purchased | Common stock
Common Stock Activity [Roll Forward]
Purchase of treasury shares (in shares)	0	0	0
Treasury shares purchased	$ 0	$ 0	$ 0
Treasury shares purchased | Treasury Cost
Common Stock Activity [Roll Forward]
Purchase of treasury shares (in shares)	(31,260)	(37,710)	(69,973)
Treasury shares purchased	$ (4,021)	$ (6,171)	$ (9,025)
Share repurchase program | Common stock
Common Stock Activity [Roll Forward]
Purchase of treasury shares (in shares)		0	0
Treasury shares purchased		$ (4,751)	$ 0
Share repurchase program | Treasury Cost
Common Stock Activity [Roll Forward]
Purchase of treasury shares (in shares)		0	(175,000)
Treasury shares purchased		$ 0	$ (20,113)

Segment Information - Additiona

Segment Information - Additional Information (Detail) - Segment	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021
Segment Reporting [Abstract]
Number of geographic operating segments (in segments)		4
Number of reportable segments (in segments)	3

Segment Information - Schedule

Segment Information - Schedule Of Reportable Segment Information (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Segment Reporting Information [Line Items]
Net sales to external customers	$ 1,527,953	$ 1,400,182	$ 1,348,223
Operating income	239,137	22,780	171,895
Restructuring charges	7,965	16,433	27,381
Currency exchange losses, net (Note 6)	10,255	216	8,578
Product liability expense (Note 20)	20,590	185,264	39,036
Acquisition related costs	12,440	15,884	717
COVID-19 related costs			757
Adjusted operating income (loss)	290,387	240,577	248,364
Depreciation and amortization	47,110	45,417	39,674
Adjusted EBITDA	337,497	285,994	288,038
Pension (income) expense	(11,499)	2,874	9,023
Total Assets	2,376,976	2,396,396	1,919,631
Capital expenditures	42,553	43,837	48,905
Americas
Segment Reporting Information [Line Items]
Net sales to external customers	1,043,238	908,068	874,305
Operating Segments | Americas
Segment Reporting Information [Line Items]
Net sales to external customers	1,043,238	908,068	874,305
Adjusted operating income (loss)	$ 267,392	$ 202,496	$ 205,304
Adjusted operating margin %	25.60%	22.30%	23.50%
Depreciation and amortization	$ 34,334	$ 31,236	$ 26,762
Adjusted EBITDA	$ 301,726	$ 233,732	$ 232,066
Adjusted EBITDA margin %	28.90%	25.70%	26.50%
Pension (income) expense	$ (18,368)	$ (2,916)	$ 910
Total Assets	1,660,776	1,661,619	1,273,302
Capital expenditures	33,324	25,148	43,181
Operating Segments | International
Segment Reporting Information [Line Items]
Net sales to external customers	484,715	492,114	473,918
Adjusted operating income (loss)	$ 60,923	$ 73,279	$ 71,140
Adjusted operating margin %	12.60%	14.90%	15%
Depreciation and amortization	$ 12,256	$ 13,718	$ 12,521
Adjusted EBITDA	$ 73,179	$ 86,997	$ 83,661
Adjusted EBITDA margin %	15.10%	17.70%	17.70%
Pension (income) expense	$ 6,869	$ 5,790	$ 8,113
Total Assets	703,444	720,257	617,698
Capital expenditures	9,229	11,408	5,724
Corporate
Segment Reporting Information [Line Items]
Net sales to external customers	0	0	0
Restructuring charges		600	800
Adjusted operating income (loss)	(37,928)	(35,198)	(28,080)
Depreciation and amortization	520	463	391
Adjusted EBITDA	(37,408)	(34,735)	(27,689)
Pension (income) expense	0	0	0
Total Assets	11,673	13,034	29,761
Capital expenditures	0	7,281	0
Reconciling Items
Segment Reporting Information [Line Items]
Net sales to external customers	0	0	0
Adjusted operating income (loss)		0	0
Depreciation and amortization		0	0
Adjusted EBITDA		0	0
Pension (income) expense	0	0	0
Total Assets	1,083	1,486	(1,130)
Capital expenditures	$ 0	$ 0	$ 0

Segment Information - Geographi

Segment Information - Geographic Information on Sales to External Customers (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Segment Reporting, Revenue Reconciling Item [Line Items]
Revenues	$ 1,527,953	$ 1,400,182	$ 1,348,223
United States
Segment Reporting, Revenue Reconciling Item [Line Items]
Revenues	876,945	746,825	750,315
Other
Segment Reporting, Revenue Reconciling Item [Line Items]
Revenues	$ 651,008	$ 653,357	$ 597,908

Segment Information - Geograp_2

Segment Information - Geographic Information on Property (Detail) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Long-Lived Assets by Geographical Areas [Line Items]
Net property	$ 207,552	$ 207,793
Property, plant, equipment, and operating leases, net	251,694	257,971	$ 243,071
United States
Long-Lived Assets by Geographical Areas [Line Items]
Net property	159,345	155,667	134,234
Other
Long-Lived Assets by Geographical Areas [Line Items]
Net property	$ 92,349	$ 102,304	$ 108,837

Segment Information - Revenue f

Segment Information - Revenue from External Customers by Products and Services (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Revenue from External Customer [Line Items]
Revenues	$ 1,527,953	$ 1,400,182	$ 1,348,223
Sales | Product concentration risk
Revenue from External Customer [Line Items]
Concentration risk (percentage)	100%	100%	100%
Breathing Apparatus
Revenue from External Customer [Line Items]
Revenues	$ 371,176	$ 322,412	$ 329,179
Breathing Apparatus | Sales | Product concentration risk
Revenue from External Customer [Line Items]
Concentration risk (percentage)	24%	23%	24%
Fixed Gas & Flame Detection (a)
Revenue from External Customer [Line Items]
Revenues	$ 356,075	$ 299,018	$ 287,414
Fixed Gas & Flame Detection (a) | Sales | Product concentration risk
Revenue from External Customer [Line Items]
Concentration risk (percentage)	23%	21%	21%
Firefighter Helmets & Protective Apparel (b)
Revenue from External Customer [Line Items]
Revenues	$ 207,759	$ 203,914	$ 162,207
Firefighter Helmets & Protective Apparel (b) | Sales | Product concentration risk
Revenue from External Customer [Line Items]
Concentration risk (percentage)	14%	15%	12%
Portable Gas Detection
Revenue from External Customer [Line Items]
Revenues	$ 173,660	$ 162,761	$ 142,581
Portable Gas Detection | Sales | Product concentration risk
Revenue from External Customer [Line Items]
Concentration risk (percentage)	11%	12%	11%
Industrial Head Protection
Revenue from External Customer [Line Items]
Revenues	$ 163,253	$ 143,601	$ 125,921
Industrial Head Protection | Sales | Product concentration risk
Revenue from External Customer [Line Items]
Concentration risk (percentage)	11%	10%	9%
Fall Protection
Revenue from External Customer [Line Items]
Revenues	$ 110,094	$ 117,731	$ 103,075
Fall Protection | Sales | Product concentration risk
Revenue from External Customer [Line Items]
Concentration risk (percentage)	7%	8%	8%
Other
Revenue from External Customer [Line Items]
Revenues	$ 145,936	$ 150,745	$ 197,846
Other | Sales | Product concentration risk
Revenue from External Customer [Line Items]
Concentration risk (percentage)	10%	11%	15%
Americas
Revenue from External Customer [Line Items]
Revenues	$ 1,043,238	$ 908,068	$ 874,305
Americas | Sales | Product concentration risk
Revenue from External Customer [Line Items]
Concentration risk (percentage)	100%	100%	100%
Americas | Breathing Apparatus
Revenue from External Customer [Line Items]
Revenues	$ 265,558	$ 217,340	$ 220,650
Americas | Breathing Apparatus | Sales | Product concentration risk
Revenue from External Customer [Line Items]
Concentration risk (percentage)	25%	24%	25%
Americas | Fixed Gas & Flame Detection (a)
Revenue from External Customer [Line Items]
Revenues	$ 227,609	$ 182,515	$ 158,924
Americas | Fixed Gas & Flame Detection (a) | Sales | Product concentration risk
Revenue from External Customer [Line Items]
Concentration risk (percentage)	22%	20%	18%
Americas | Firefighter Helmets & Protective Apparel (b)
Revenue from External Customer [Line Items]
Revenues	$ 150,869	$ 137,086	$ 133,653
Americas | Firefighter Helmets & Protective Apparel (b) | Sales | Product concentration risk
Revenue from External Customer [Line Items]
Concentration risk (percentage)	14%	15%	15%
Americas | Portable Gas Detection
Revenue from External Customer [Line Items]
Revenues	$ 121,934	$ 109,543	$ 90,545
Americas | Portable Gas Detection | Sales | Product concentration risk
Revenue from External Customer [Line Items]
Concentration risk (percentage)	12%	12%	10%
Americas | Industrial Head Protection
Revenue from External Customer [Line Items]
Revenues	$ 127,485	$ 108,869	$ 92,075
Americas | Industrial Head Protection | Sales | Product concentration risk
Revenue from External Customer [Line Items]
Concentration risk (percentage)	12%	12%	11%
Americas | Fall Protection
Revenue from External Customer [Line Items]
Revenues	$ 69,225	$ 69,108	$ 58,060
Americas | Fall Protection | Sales | Product concentration risk
Revenue from External Customer [Line Items]
Concentration risk (percentage)	7%	8%	7%
Americas | Other
Revenue from External Customer [Line Items]
Revenues	$ 80,558	$ 83,607	$ 120,398
Americas | Other | Sales | Product concentration risk
Revenue from External Customer [Line Items]
Concentration risk (percentage)	8%	9%	14%
International
Revenue from External Customer [Line Items]
Revenues	$ 484,715	$ 492,114	$ 473,918
International | Sales | Product concentration risk
Revenue from External Customer [Line Items]
Concentration risk (percentage)	100%	100%	100%
International | Breathing Apparatus
Revenue from External Customer [Line Items]
Revenues	$ 105,618	$ 105,072	$ 108,529
International | Breathing Apparatus | Sales | Product concentration risk
Revenue from External Customer [Line Items]
Concentration risk (percentage)	22%	21%	23%
International | Fixed Gas & Flame Detection (a)
Revenue from External Customer [Line Items]
Revenues	$ 128,466	$ 116,503	$ 128,490
International | Fixed Gas & Flame Detection (a) | Sales | Product concentration risk
Revenue from External Customer [Line Items]
Concentration risk (percentage)	27%	24%	27%
International | Firefighter Helmets & Protective Apparel (b)
Revenue from External Customer [Line Items]
Revenues	$ 56,890	$ 66,828	$ 28,554
International | Firefighter Helmets & Protective Apparel (b) | Sales | Product concentration risk
Revenue from External Customer [Line Items]
Concentration risk (percentage)	12%	14%	6%
International | Portable Gas Detection
Revenue from External Customer [Line Items]
Revenues	$ 51,726	$ 53,218	$ 52,036
International | Portable Gas Detection | Sales | Product concentration risk
Revenue from External Customer [Line Items]
Concentration risk (percentage)	11%	11%	11%
International | Industrial Head Protection
Revenue from External Customer [Line Items]
Revenues	$ 35,768	$ 34,732	$ 33,846
International | Industrial Head Protection | Sales | Product concentration risk
Revenue from External Customer [Line Items]
Concentration risk (percentage)	7%	7%	7%
International | Fall Protection
Revenue from External Customer [Line Items]
Revenues	$ 40,869	$ 48,623	$ 45,015
International | Fall Protection | Sales | Product concentration risk
Revenue from External Customer [Line Items]
Concentration risk (percentage)	8%	10%	10%
International | Other
Revenue from External Customer [Line Items]
Revenues	$ 65,378	$ 67,138	$ 77,448
International | Other | Sales | Product concentration risk
Revenue from External Customer [Line Items]
Concentration risk (percentage)	13%	13%	16%

Earnings per Share - Schedule o

Earnings per Share - Schedule of Earnings per Share (Detail) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2022	Sep. 30, 2022	Jun. 30, 2022	Mar. 31, 2022	Dec. 31, 2021	Sep. 30, 2021	Jun. 30, 2021	Mar. 31, 2021	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Earnings Per Share [Abstract]
Net income	$ 51,489	$ 44,906	$ 47,693	$ 35,542	$ (61,476)	$ 21,180	$ 25,186	$ 36,450	$ 179,630	$ 21,340	$ 124,077
Preferred stock dividends									(41)	(41)	(41)
Net income available to common equity									179,589	21,299	124,036
Dividends and undistributed earnings allocated to participating securities									(30)	(24)	(84)
Net income available to common shareholders									$ 179,559	$ 21,275	$ 123,952
Basic weighted-average shares outstanding (in shares)									39,232	39,173	38,885
Stock options and other stock-based awards (in shares)									175	276	401
Diluted weighted-average shares outstanding (in shares)									39,407	39,449	39,286
Antidilutive stock options (in shares)									0	0	0
Earnings per share:
Basic (in dollars per share)	$ 1.31	$ 1.15	$ 1.21	$ 0.90	$ (1.57)	$ 0.54	$ 0.64	$ 0.93	$ 4.58	$ 0.54	$ 3.19
Diluted (in dollars per share)	$ 1.31	$ 1.14	$ 1.21	$ 0.90	$ (1.57)	$ 0.54	$ 0.64	$ 0.92	$ 4.56	$ 0.54	$ 3.15

Income Taxes - Additional Infor

Income Taxes - Additional Information (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021
Segment Reporting Information [Line Items]
Net operating loss carryforwards	$ 49
Net operating loss carryforwards, expiration term (at least)	6 years
Recognized tax benefits	$ 2.7	$ 2.5
Liability for interest expense and penalties accrued	$ 1.1	$ 0.8

Income Taxes - Components of In

Income Taxes - Components of Income Before Income Taxes (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Income Tax Disclosure [Abstract]
U.S. income (loss)	$ 170,426	$ (59,746)	$ 109,726
Non-U.S. income	68,107	83,350	58,421
Income before income taxes	238,533	23,604	168,147
Current
Federal	26,022	13,179	23,587
State	7,708	5,000	4,896
Non-U.S.	20,002	22,487	16,780
Total current provision	53,732	40,666	45,263
Deferred
Federal	7,350	(29,631)	(573)
State	862	(7,204)	(579)
Non-U.S.	(3,041)	(2,015)	(1,102)
Total deferred provision (benefit)	5,171	(38,850)	(2,254)
Provision for income taxes	$ 58,903	$ 1,816	$ 43,009

Income Taxes - Reconciliation B

Income Taxes - Reconciliation Between U.S. Federal Income Tax Rate and Effective Tax Rate (Detail)	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Income Tax Disclosure [Abstract]
U.S. federal income tax rate	21%	21%	21%
Nondeductible compensation	1.20%	15.30%	3.40%
Valuation allowances	0.80%	7%	0.80%
Employee share-based payments	(0.80%)	(18.30%)	(3.90%)
Taxes on non-U.S. income	0.10%	(10.90%)	2.60%
State income taxes-U.S.	2.90%	(7.00%)	2%
Research and development credit	(0.40%)	(5.30%)	(1.20%)
Foreign exchange on entity closures	0.30%	(0.40%)	0%
Taxes on non-U.S. income - U.S., Canadian & European reorganization	0%	0%	0.70%
Other	(0.40%)	6.30%	0.20%
Effective income tax rate	24.70%	7.70%	25.60%

Income Taxes - Components of De

Income Taxes - Components of Deferred Tax Assets and Liabilities (Detail) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Income Tax Disclosure [Abstract]
Product liability	$ 72,950	$ 71,709
Capitalized research and development	26,988	25,644
Net operating losses and tax credit carryforwards	10,696	9,404
Accrued expenses and other reserves	5,738	4,627
Share-based compensation	4,562	3,619
Other	5,068	4,785
Total deferred tax assets	126,002	119,788
Valuation allowances	(10,017)	(8,812)
Net deferred tax assets	115,985	110,976
Goodwill and intangibles	(80,383)	(79,285)
Property, plant and equipment	(18,735)	(17,088)
Employee benefits	(18,899)	(8,985)
Inventory	0	(1,264)
Other	(4,359)	(2,434)
Total deferred tax liabilities	(122,376)	(109,056)
Net deferred taxes	$ (6,391)
Net deferred taxes		$ 1,920

Income Taxes - Reconciliation o

Income Taxes - Reconciliation of Change in Tax Liability for Unrecognized Tax Benefits (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021
Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns [Roll Forward]
Beginning balance	$ 4,937	$ 8,092
Adjustments for tax positions related to the current year	100	182
Adjustments for tax positions related to prior years	155	733
Settlements	0	(3,211)
Statute expiration	0	(859)
Ending balance	$ 5,192	$ 4,937

Stock Plans - Additional Inform

Stock Plans - Additional Information (Detail) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Mar. 31, 2022	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock options exercisable period after grant date		3 years
Restricted stock and restricted stock unit vest period after grant date		3 years
Cash proceeds from exercise of options		$ 4,650	$ 5,770	$ 12,446
Aggregate intrinsic value of stock options exercisable		5,700
Total intrinsic value of stock options exercised		8,600	13,000	24,600
Unrecognized stock-based compensation expense		$ 16,400
Weighted average period over which unrecognized stock-based compensation expense is expected to be recognized, in years		1 year 9 months 18 days
Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Percentage of target award based on achieving targeted performance conditions		0%
Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Percentage of target award based on achieving targeted performance conditions		240%
Percentage of target award based on achieving targeted return on net assets based on which final number of shares to be issued for performance stock units		64.20%
Stock options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Exercise of option tax benefit		$ 1,900	4,300	6,400
Restricted stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Fair value of stock units vested		5,900	6,200	5,700
Performance stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period (in years)	3 years
Fair value of stock units vested		$ 5,600	$ 5,500	$ 9,600
Management
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares reserved for future grants (in shares)		598,813
Non employee directors
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares reserved for future grants (in shares)		76,890
Stock options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock options expiration period		10 years

Stock Plans - Schedule of Stock

Stock Plans - Schedule of Stock Compensation Expense (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Share-Based Payment Arrangement [Abstract]
Restricted stock units	$ 6,488	$ 5,797	$ 6,258
Stock options	49	81	113
Performance stock units	13,113	13,030	549
Total stock-compensation expense before income taxes	19,650	18,908	6,920
Income tax benefit	4,814	4,633	1,668
Total stock-compensation expense, net of income tax benefit	$ 14,836	$ 14,275	$ 5,252

Stock Plans - Summary of Stock

Stock Plans - Summary of Stock Option Activity (Detail) - $ / shares	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Shares
Beginning balance, outstanding (in shares)	161,701	283,998	559,656
Exercised (in shares)	(103,545)	(122,087)	(274,704)
Forfeited (in shares)		(210)	(954)
Ending balance, outstanding (in shares)	58,156	161,701	283,998
Weighted Average Exercise Price
Beginning, weighted average exercise price (in dollars per share)	$ 45.47	$ 46.23	$ 45.78
Exercised (in dollars per share)	44.91	47.25	45.31
Forfeited (in dollars per share)		43.75	42
Ending, weighted average exercise price (in dollars per share)	$ 46.48	$ 45.47	$ 46.23
Exercisable at year-end (in shares)	58,156	161,347	281,593

Stock Plans - Schedule of Exerc

Stock Plans - Schedule of Exercise Price Ranges, Characteristics of Outstanding Stock Options (Detail)	12 Months Ended
	Dec. 31, 2022 $ / shares shares
$33.01 – $45.00
Range of Exercise Prices
Range of Exercise Prices, minimum (in dollars per share)	$ 33.01
Range of Exercise Prices, maximum (in dollars per share)	$ 45
Stock Options Outstanding (in shares) | shares	33,148
Stock Options Outstanding
Stock Options Outstanding (in shares) | shares	33,148
Stock Options Outstanding, Weighted-Average Exercise Price (in dollars per share)	$ 44.50
Stock Options Outstanding, Weighted-Average Remaining Life (in years)	2 years 4 months 28 days
Stock Options Exercisable
Stock Options Exercisable (in shares) | shares	33,148
Stock Options Exercisable, Weighted-Average Exercise Price (in dollars per share)	$ 44.50
Stock Options Exercisable, Weighted-Average Remaining Life (in years)	2 years 4 months 28 days
$45.01 – $57.93
Range of Exercise Prices
Range of Exercise Prices, minimum (in dollars per share)	$ 45.01
Range of Exercise Prices, maximum (in dollars per share)	$ 57.93
Stock Options Outstanding (in shares) | shares	25,008
Stock Options Outstanding
Stock Options Outstanding (in shares) | shares	25,008
Stock Options Outstanding, Weighted-Average Exercise Price (in dollars per share)	$ 49.10
Stock Options Outstanding, Weighted-Average Remaining Life (in years)	2 years 2 months 15 days
Stock Options Exercisable
Stock Options Exercisable (in shares) | shares	25,008
Stock Options Exercisable, Weighted-Average Exercise Price (in dollars per share)	$ 49.10
Stock Options Exercisable, Weighted-Average Remaining Life (in years)	2 years 2 months 15 days
$33.01 – $57.93
Range of Exercise Prices
Range of Exercise Prices, minimum (in dollars per share)	$ 33.01
Range of Exercise Prices, maximum (in dollars per share)	$ 57.93
Stock Options Outstanding (in shares) | shares	58,156
Stock Options Outstanding
Stock Options Outstanding (in shares) | shares	58,156
Stock Options Outstanding, Weighted-Average Exercise Price (in dollars per share)	$ 46.48
Stock Options Outstanding, Weighted-Average Remaining Life (in years)	2 years 3 months 25 days
Stock Options Exercisable
Stock Options Exercisable (in shares) | shares	58,156
Stock Options Exercisable, Weighted-Average Exercise Price (in dollars per share)	$ 46.48
Stock Options Exercisable, Weighted-Average Remaining Life (in years)	2 years 3 months 25 days

Stock Plans - Summary of Restri

Stock Plans - Summary of Restricted Stock Activity (Detail) - Restricted stock - $ / shares	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Shares
Beginning balance (in shares)	118,343	146,191	172,701
Granted (in shares)	87,697	43,146	51,468
Vested (in shares)	(51,369)	(65,225)	(70,399)
Forfeited (in shares)	(8,785)	(5,769)	(7,579)
Ending balance (in shares)	145,886	118,343	146,191
Weighted Average Grant Date Fair Value
Beginning balance (in dollars per share)	$ 132.62	$ 105.83	$ 90.38
Granted (in dollars per share)	130.28	167.13	124.61
Vested (in dollars per share)	113.96	95.43	81.58
Forfeited (in dollars per share)	139.66	132.54	106.54
Ending balance (in dollars per share)	$ 137.36	$ 132.62	$ 105.83

Stock Plans - Summary of Perfor

Stock Plans - Summary of Performance Stock Unit Activity (Detail) - Performance stock - $ / shares	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Shares
Beginning balance (in shares)	193,335	200,212	238,035
Granted (in shares)	81,504	52,309	67,479
Vested (in shares)	(55,447)	(64,543)	(132,036)
Performance adjustments (in shares)	(22,147)	5,357	33,499
Forfeited (in shares)	(18,485)		(6,765)
Ending balance (in shares)	178,760	193,335	200,212
Weighted Average Exercise Price
Beginning balance (in dollars per share)	$ 129.86	$ 104.69	$ 85.39
Granted (in dollars per share)	142.38	175.59	127.48
Vested (in dollars per share)	101.38	85.41	73
Performance adjustments (in dollars per share)	99.84	88.45	72.36
Forfeited (in dollars per share)	147.66		111.60
Ending balance (in dollars per share)	$ 146.28	$ 129.86	$ 104.69

Long-Term Debt - Schedule of De

Long-Term Debt - Schedule of Debt (Detail) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Debt Instrument [Line Items]
Senior revolving credit facility maturing in 2026, net of debt issuance costs	$ 307,031	$ 324,060
Total	572,832	597,651
Amounts due within one year	7,387	0
Long-term debt, net of debt issuance costs	$ 565,445	597,651
2016 Senior Notes payable through 2031, 3.40%, net of debt issuance costs
Debt Instrument [Line Items]
Debt instrument, stated interest rate percentage	3.40%
Senior notes payable	$ 66,379	74,203
2021 Senior Notes payable through 2036, 2.69%, net of debt issuance costs
Debt Instrument [Line Items]
Debt instrument, stated interest rate percentage	2.69%
Senior notes payable	$ 99,711	99,694
2021 Senior Notes payable through 2036, 2.69%, net of debt issuance costs
Debt Instrument [Line Items]
Debt instrument, stated interest rate percentage	2.69%
Senior notes payable	$ 99,711	$ 99,694

Long-Term Debt - Additional Inf

Long-Term Debt - Additional Information (Detail)				1 Months Ended	12 Months Ended
	Jul. 01, 2021 USD ($)	May 24, 2021 USD ($)	Jan. 04, 2019	Jan. 31, 2023 USD ($)	Dec. 31, 2022 USD ($)	Dec. 31, 2021 USD ($)	Dec. 31, 2020 USD ($)	Dec. 31, 2022 GBP (£)
Debt Instrument [Line Items]
Line of credit facility, maximum borrowing capacity		$ 900,000,000
Line of credit facility, accordion feature					$ 400,000,000
Amounts due within one year					7,387,000	$ 0
Minimum fixed charges coverage ratio (not less than)			1.50
Maximum consolidated leverage ratio (not to exceed)			3.50
Consolidated leverage ratio (not more than)			4
Acquisition, net of cash acquired					0	392,437,000	$ 0
Maturity obligation, year one					7,400,000
Maturity obligation, year two					7,400,000
Maturity obligation, year three					7,400,000
Maturity obligation, year four					316,000,000
Maturity obligation, year five					7,400,000
Maturity obligation, thereafter					229,600,000
Proceeds from lines of credit					9,300,000
Restricted cash balances					$ 1,500,000	$ 500,000
Revolving Credit Facility
Debt Instrument [Line Items]
Weighted average interest rate					5.13%			5.13%
Line of credit facility, remaining borrowing capacity					$ 589,900,000
Proceeds from lines of credit					$ 1,500,000
Bacharach Inc
Debt Instrument [Line Items]
Acquisition, net of cash acquired	$ 329,400,000
Series C Senior Notes Due July 2036
Debt Instrument [Line Items]
Debt instrument, stated interest rate percentage					2.69%			2.69%
Series A Senior Notes Due 2036
Debt Instrument [Line Items]
Debt instrument, stated interest rate percentage					2.69%			2.69%
Senior Notes | Series C Senior Notes Due July 2036
Debt Instrument [Line Items]
Aggregate principal amount	$ 100,000,000
Debt instrument, stated interest rate percentage	2.69%
Senior Notes | Series A Senior Notes Due 2036
Debt Instrument [Line Items]
Aggregate principal amount	$ 100,000,000
Debt instrument, stated interest rate percentage	2.69%
Senior Notes | NYL Note Facility
Debt Instrument [Line Items]
Line of credit facility, maximum borrowing capacity	$ 200,000,000
Senior Notes | Multicurrency Series C Senior Note and NYL Series A Senior Note
Debt Instrument [Line Items]
Aggregate principal amount	$ 200,000,000
Debt instrument, stated interest rate percentage	2.69%
Unsecured Debt | Series C Senior Notes Due July 2036
Debt Instrument [Line Items]
Line of credit facility, maximum borrowing capacity	$ 335,000,000
Notes Payable | Multi-currency Notes Due in 2031
Debt Instrument [Line Items]
Aggregate principal amount					$ 66,500,000			£ 54,900,000
Debt instrument, stated interest rate percentage					3.40%			3.40%
Line of Credit | Senior Revolving Credit Facility Maturing in 2026 | Revolving Credit Facility | Subsequent Event
Debt Instrument [Line Items]
Proceeds from long-term lines of credit				$ 65,000,000
Loans Payable | Subsequent Event
Debt Instrument [Line Items]
Aggregate principal amount				$ 250,000,000
Base Rate | Senior Revolving Credit Facility Maturing in 2026
Debt Instrument [Line Items]
Interest rate margin, percentage		0%
Federal Funds Open Rate | Senior Revolving Credit Facility Maturing in 2026
Debt Instrument [Line Items]
Interest rate margin, percentage		0.50%
Overnight Bank Funding Rate | Senior Revolving Credit Facility Maturing in 2026
Debt Instrument [Line Items]
Interest rate margin, percentage		0.50%
London Interbank Offered Rate (LIBOR) | Senior Revolving Credit Facility Maturing in 2026
Debt Instrument [Line Items]
Interest rate margin, percentage		1%
Minimum | Senior Revolving Credit Facility Maturing in 2026
Debt Instrument [Line Items]
Interest rate margin, percentage		0%
Maximum | Senior Revolving Credit Facility Maturing in 2026
Debt Instrument [Line Items]
Interest rate margin, percentage		1.75%

Goodwill and Intangible Asset_2

Goodwill and Intangible Assets - Schedule of Changes in Goodwill (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021
Goodwill [Roll Forward]
Balance at January 1, 2022	$ 636,858	$ 443,272
Additions	0	199,454
Measurement period adjustment	(1,041)	0
Currency translation	(15,195)	(5,868)
Balance at December 31. 2022	$ 620,622	$ 636,858

Goodwill and Intangible Asset_3

Goodwill and Intangible Assets - Additional Information (Detail) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Acquired Finite-Lived Intangible Assets [Line Items]
Goodwill	$ 620,622	$ 636,858	$ 443,272
Trade name | Globe Holding Company LLC
Acquired Finite-Lived Intangible Assets [Line Items]
Indefinite-lived intangible assets	60,000
Intangible Assets
Acquired Finite-Lived Intangible Assets [Line Items]
Future amortization expense, year one	18,000
Future amortization expense, year two	18,000
Future amortization expense, year three	17,100
Future amortization expense, year four	17,100
Future amortization expense, year five	17,100
Americas
Acquired Finite-Lived Intangible Assets [Line Items]
Goodwill	447,600
International
Acquired Finite-Lived Intangible Assets [Line Items]
Goodwill	$ 173,000

Goodwill and Intangible Asset_4

Goodwill and Intangible Assets - Schedule of Changes in Intangible Assets, Net of Accumulated Amortization (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021
Finite-lived Intangible Assets [Roll Forward]
Net balance at January 1, 2022	$ 306,948	$ 161,051
Additions	0	164,426
Amortization expense	(19,137)	(16,814)
Currency translation	(5,958)	(1,715)
Net balance at December 31, 2022	$ 281,853	$ 306,948

Goodwill and Intangible Asset_5

Goodwill and Intangible Assets - Net Carrying Amount (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021
Finite-Lived Intangible Assets [Line Items]
Weighted Average Useful Life (years)	17 years
Gross Carrying Amount	$ 336.7	$ 346.1
Accumulated Amortization and Reserves	(114.8)	(99.1)
Net Carrying Amount	$ 221.9	247
Customer relationships
Finite-Lived Intangible Assets [Line Items]
Weighted Average Useful Life (years)	19 years
Gross Carrying Amount	$ 178.7	185.7
Accumulated Amortization and Reserves	(35.3)	(27.9)
Net Carrying Amount	$ 143.4	157.8
Distribution agreements
Finite-Lived Intangible Assets [Line Items]
Weighted Average Useful Life (years)	20 years
Gross Carrying Amount	$ 65.8	66.1
Accumulated Amortization and Reserves	(26.9)	(23.8)
Net Carrying Amount	$ 38.9	42.3
Technology related assets
Finite-Lived Intangible Assets [Line Items]
Weighted Average Useful Life (years)	8 years
Gross Carrying Amount	$ 49.5	50.4
Accumulated Amortization and Reserves	(29.3)	(25.5)
Net Carrying Amount	$ 20.2	24.9
Patents, trademarks and copyrights
Finite-Lived Intangible Assets [Line Items]
Weighted Average Useful Life (years)	16 years
Gross Carrying Amount	$ 34	35.2
Accumulated Amortization and Reserves	(14.8)	(13.6)
Net Carrying Amount	$ 19.2	21.6
License agreements
Finite-Lived Intangible Assets [Line Items]
Weighted Average Useful Life (years)	5 years
Gross Carrying Amount	$ 5.4	5.4
Accumulated Amortization and Reserves	(5.3)	(5.3)
Net Carrying Amount	$ 0.1	0.1
Other
Finite-Lived Intangible Assets [Line Items]
Weighted Average Useful Life (years)	3 years
Gross Carrying Amount	$ 3.3	3.3
Accumulated Amortization and Reserves	(3.2)	(3)
Net Carrying Amount	$ 0.1	$ 0.3

Acquisitions - Additional Infor

Acquisitions - Additional Information (Detail) - USD ($) $ in Thousands			1 Months Ended	12 Months Ended
	Jul. 01, 2021	Jan. 25, 2021	Jul. 31, 2021	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Business Acquisition [Line Items]
Payments to acquire business, net of cash acquired				$ 0	$ 392,437	$ 0
Goodwill				$ 620,622	636,858	443,272
Estimated amortization period				17 years
Revenues				$ 67,200
Net loss				6,300
Transaction costs				12,400	$ 15,900	$ 700
Noncontrolling interest, ownership percentage purchased	10%
Payments to acquire additional interest in subsidiary			$ 19,000
Dividend payment to subsidiary			$ 5,600
Americas
Business Acquisition [Line Items]
Goodwill				447,600
Bacharach Inc
Business Acquisition [Line Items]
Common stock acquired (as a percent)	100%
Payments to acquire business, net of cash acquired	$ 329,400
Remeasurement gain (loss), net	2,300
Goodwill	$ 193,500
Bacharach Inc | Americas
Business Acquisition [Line Items]
Goodwill				154,600
Bacharach Inc | International
Business Acquisition [Line Items]
Goodwill				$ 38,900
Bristol Uniforms and Bell Apparel
Business Acquisition [Line Items]
Common stock acquired (as a percent)		100%
Payments to acquire business, net of cash acquired		$ 63,000
Weighted average useful life		15 years
Goodwill		$ 4,900
Step up to fair value of acquired inventory as part of purchase price allocation		$ 1,500
Customer relationships
Business Acquisition [Line Items]
Estimated amortization period				19 years
Customer relationships | Bacharach Inc
Business Acquisition [Line Items]
Weighted average useful life	21 years
Developed technology
Business Acquisition [Line Items]
Estimated amortization period				8 years
Developed technology | Bacharach Inc | Minimum
Business Acquisition [Line Items]
Weighted average useful life	7 years
Developed technology | Bacharach Inc | Maximum
Business Acquisition [Line Items]
Weighted average useful life	9 years
Trade name | Bacharach Inc
Business Acquisition [Line Items]
Weighted average useful life	20 years

Acquisitions - Preliminary Fair

Acquisitions - Preliminary Fair Values of the Assets Acquired and Liabilities Assumed (Detail) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021	Jul. 01, 2021	Jan. 25, 2021	Dec. 31, 2020
Business Acquisition [Line Items]
Goodwill	$ 620,622	$ 636,858			$ 443,272
Bacharach Inc
Business Acquisition [Line Items]
Cash included in current assets			$ 11,700
Current assets			32,100
Property, plant and equipment and other noncurrent assets			4,300
Goodwill			193,500
Total assets acquired			388,400
Total liabilities assumed			(47,300)
Net assets acquired			341,100
Bristol Uniforms and Bell Apparel
Business Acquisition [Line Items]
Cash included in current assets				$ 13,300
Current assets				37,100
Net investment in sales-type leases, noncurrent				29,000
Property, plant and equipment and other noncurrent assets				12,000
Goodwill				4,900
Total assets acquired				88,900
Total liabilities assumed				(12,600)
Net assets acquired				76,300
Customer relationships | Bacharach Inc
Business Acquisition [Line Items]
Finite-lived intangible assets			123,000
Customer relationships | Bristol Uniforms and Bell Apparel
Business Acquisition [Line Items]
Finite-lived intangible assets				4,500
Developed technology | Bacharach Inc
Business Acquisition [Line Items]
Finite-lived intangible assets			20,500
Trade name and other intangible assets | Bristol Uniforms and Bell Apparel
Business Acquisition [Line Items]
Finite-lived intangible assets				$ 1,400
Trade name | Bacharach Inc
Business Acquisition [Line Items]
Indefinite-lived intangible assets			$ 15,000

Acquisitions - Pro Forma Financ

Acquisitions - Pro Forma Financial Information (Detail) - Bristol Uniforms and Bell Apparel - USD ($) $ / shares in Units, $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021
Business Acquisition [Line Items]
Net sales	$ 1,437.9	$ 1,470.4
Net income	$ 10.2	$ 114.6
Basic earnings per share (in dollars per share)	$ 0.26	$ 2.94
Diluted earnings per share (in dollars per share)	$ 0.26	$ 2.91

Pensions and Other Post-retir_3

Pensions and Other Post-retirement Benefits - Schedule of Defined Benefit Pension Plans and Other Postretirement Benefits Plan (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Funded Status
Noncurrent assets	$ 141,643	$ 163,283
Noncurrent liabilities	(137,810)	(189,973)
Pension Benefits
Change in Benefit Obligations
Benefit obligations at January 1	654,362	670,857
Service cost	12,281	12,910	$ 12,094
Interest cost	14,377	11,518	14,905
Participant contributions	257	287
Plan amendments	154	(243)
Actuarial (gains) losses	(156,214)	(10,277)
Benefits paid	(26,377)	(25,117)
Curtailments	(286)	(439)
Settlements	(260)	(3,190)
Transfers	0	(19,312)
Acquisitions	0	26,231
Currency translation	(7,929)	(8,863)
Benefit obligations at December 31	490,365	654,362	670,857
Change in Plan Assets
Fair value of plan assets at January 1	651,986	586,822
Actual return on plan assets	(115,105)	80,366
Employer contributions	5,032	5,543
Participant contributions	257	287
Acquisitions	0	25,476
Settlements	(260)	(1,365)
Benefits paid	(26,377)	(25,117)
Transfers	0	(19,312)
Administrative expenses paid	(54)	(67)
Currency translation	(1,261)	(647)
Fair value of plan assets at December 31	514,218	651,986	586,822
Funded Status
Funded status at December 31	23,853	(2,376)
Unrecognized prior service credit (cost)	1,224	1,186
Unrecognized net actuarial losses	90,212	95,674
Net amount recognized	115,289	94,484
Noncurrent assets	141,643	163,283
Current liabilities	(3,712)	(6,569)
Noncurrent liabilities	(114,078)	(159,090)
Net amount recognized	23,853	(2,376)
Amounts Recognized in Accumulated Other Comprehensive Loss
Net actuarial losses	90,212	95,674
Prior service cost (credit)	1,224	1,186
Total (before tax effects)	91,436	96,860
Accumulated Benefit Obligations for all Defined Benefit Plans	459,630	608,436
Other Benefits
Change in Benefit Obligations
Benefit obligations at January 1	29,831	32,225
Service cost	327	398	396
Interest cost	590	476	716
Participant contributions	259	345
Plan amendments	0	0
Actuarial (gains) losses	(5,884)	(1,518)
Benefits paid	(2,585)	(3,021)
Curtailments	0	0
Settlements	0	0
Transfers	0	0
Acquisitions	0	926
Currency translation	0	0
Benefit obligations at December 31	22,538	29,831	32,225
Change in Plan Assets
Fair value of plan assets at January 1	0	0
Actual return on plan assets	0	0
Employer contributions	2,326	2,676
Participant contributions	259	345
Acquisitions	0	0
Settlements	0	0
Benefits paid	(2,585)	(3,021)
Transfers	0	0
Administrative expenses paid	0	0
Currency translation	0	0
Fair value of plan assets at December 31	0	0	$ 0
Funded Status
Funded status at December 31	(22,538)	(29,831)
Unrecognized prior service credit (cost)	(429)	(767)
Unrecognized net actuarial losses	6,445	13,570
Net amount recognized	(16,522)	(17,028)
Noncurrent assets	0	0
Current liabilities	(2,226)	(2,739)
Noncurrent liabilities	(20,312)	(27,092)
Net amount recognized	(22,538)	(29,831)
Amounts Recognized in Accumulated Other Comprehensive Loss
Net actuarial losses	6,445	13,570
Prior service cost (credit)	(429)	(767)
Total (before tax effects)	6,016	12,803
Accumulated Benefit Obligations for all Defined Benefit Plans	$ 0	$ 0

Pensions and Other Post-retir_4

Pensions and Other Post-retirement Benefits - Components of Net Periodic Benefit Cost (Credit) (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Pension Benefits
Defined Benefit Plan Disclosure [Line Items]
Service cost	$ 12,281	$ 12,910	$ 12,094
Interest cost	14,377	11,518	14,905
Expected return on plan assets	(49,646)	(37,368)	(34,029)
Amortization of prior service cost (credit)	139	164	178
Recognized net actuarial losses	11,704	17,458	15,799
Settlement/curtailment (gain) loss	(354)	(2,234)	1,135
Net periodic benefit cost	(11,499)	2,448	10,082
Other Benefits
Defined Benefit Plan Disclosure [Line Items]
Service cost	327	398	396
Interest cost	590	476	716
Expected return on plan assets	0	0	0
Amortization of prior service cost (credit)	(338)	(358)	(394)
Recognized net actuarial losses	1,242	1,597	1,145
Settlement/curtailment (gain) loss	0	0	0
Net periodic benefit cost	$ 1,821	$ 2,113	$ 1,863

Pensions and Other Post-retir_5

Pensions and Other Post-retirement Benefits - Accumulated Benefit Obligation in Excess of Plan Assets (Detail) - Pension Benefits - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Aggregate accumulated benefit obligations (ABO)	$ 116,531	$ 181,511
Aggregate fair value of plan assets	$ 4,454	$ 22,265

Pension and Other Post-retireme

Pension and Other Post-retirement Benefits - Pension Plans with PBO in Excess of Plan Assets (Detail) - Pension Benefits - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Aggregate projected benefit obligations (PBO)	$ 122,229	$ 187,924
Aggregate fair value of plan assets	$ 4,454	$ 22,265

Pensions and Other Post-retir_6

Pensions and Other Post-retirement Benefits - Schedule of Assumptions Used to Determine Benefit Obligations and Net Periodic Benefit Cost (Detail)	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021
Pension Benefits
Defined Benefit Plan Disclosure [Line Items]
Assumptions used to determine benefit obligations, average discount rate	5.01%	2.70%
Assumptions used to determine benefit obligations, rate of compensation increase	4.61%	4.58%
Assumptions used to determine net periodic benefit cost, average discount rate, service cost	3.12%	2.80%
Assumptions used to determine net periodic benefit cost, average discount rate, interest cost	2.17%	1.69%
Assumptions used to determine net periodic benefit cost, expected return on plan assets	8.77%	7.13%
Assumptions used to determine net periodic benefit cost, rate of compensation increase	4.58%	2.90%
Other Benefits
Defined Benefit Plan Disclosure [Line Items]
Assumptions used to determine benefit obligations, average discount rate	5.09%	2.66%
Assumptions used to determine benefit obligations, rate of compensation increase	3%	2.91%
Assumptions used to determine net periodic benefit cost, average discount rate, service cost	2.84%	2.42%
Assumptions used to determine net periodic benefit cost, average discount rate, interest cost	2.04%	1.48%
Assumptions used to determine net periodic benefit cost, expected return on plan assets	0%	0%
Assumptions used to determine net periodic benefit cost, rate of compensation increase	2.91%	3%

Pensions and Other Post-retir_7

Pensions and Other Post-retirement Benefits - Schedule of Expected Return on Assets for Net Periodic Pension Cost (Detail)	Dec. 31, 2022	Dec. 31, 2021
Defined Benefit Plan Disclosure [Line Items]
Pension Plan Assets at December 31,	100%	100%
Equity securities
Defined Benefit Plan Disclosure [Line Items]
Pension Plan Assets at December 31,	56%	51%
Fixed income securities
Defined Benefit Plan Disclosure [Line Items]
Pension Plan Assets at December 31,	26%	25%
Pooled investment funds
Defined Benefit Plan Disclosure [Line Items]
Pension Plan Assets at December 31,	15%	22%
Insurance contracts
Defined Benefit Plan Disclosure [Line Items]
Pension Plan Assets at December 31,	1%	1%
Cash and cash equivalents
Defined Benefit Plan Disclosure [Line Items]
Pension Plan Assets at December 31,	2%	1%

Pensions and Other Post-retir_8

Pensions and Other Post-retirement Benefits - Summary of Pension Plan Assets Measured at Fair Value on Recurring Basis by Fair Value Hierarchy (Detail) - Pension Plan - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Defined Benefit Plan Disclosure [Line Items]
Total	$ 514,218	$ 651,986	$ 586,822
Fair Value, Measurements, Recurring
Defined Benefit Plan Disclosure [Line Items]
Total	514,218	651,986
NAV	132,390	221,615
Fair Value, Measurements, Recurring | Quoted Prices in Active Markets for Identical Assets (Level 1)
Defined Benefit Plan Disclosure [Line Items]
Total	308,237	350,738
Fair Value, Measurements, Recurring | Significant Observable Inputs (Level 2)
Defined Benefit Plan Disclosure [Line Items]
Total	69,137	75,422
Fair Value, Measurements, Recurring | Significant Unobservable Inputs (Level 3)
Defined Benefit Plan Disclosure [Line Items]
Total	4,454	4,211
Fair Value, Measurements, Recurring | Equity securities
Defined Benefit Plan Disclosure [Line Items]
Total	288,006	329,795
NAV	44,583	66,897
Fair Value, Measurements, Recurring | Equity securities | Quoted Prices in Active Markets for Identical Assets (Level 1)
Defined Benefit Plan Disclosure [Line Items]
Total	243,423	262,898
Fair Value, Measurements, Recurring | Equity securities | Significant Observable Inputs (Level 2)
Defined Benefit Plan Disclosure [Line Items]
Total	0	0
Fair Value, Measurements, Recurring | Equity securities | Significant Unobservable Inputs (Level 3)
Defined Benefit Plan Disclosure [Line Items]
Total	0	0
Fair Value, Measurements, Recurring | Fixed income securities
Defined Benefit Plan Disclosure [Line Items]
Total	132,659	161,965
NAV	0	0
Fair Value, Measurements, Recurring | Fixed income securities | Quoted Prices in Active Markets for Identical Assets (Level 1)
Defined Benefit Plan Disclosure [Line Items]
Total	63,522	86,543
Fair Value, Measurements, Recurring | Fixed income securities | Significant Observable Inputs (Level 2)
Defined Benefit Plan Disclosure [Line Items]
Total	69,137	75,422
Fair Value, Measurements, Recurring | Fixed income securities | Significant Unobservable Inputs (Level 3)
Defined Benefit Plan Disclosure [Line Items]
Total	0	0
Fair Value, Measurements, Recurring | Pooled investment funds
Defined Benefit Plan Disclosure [Line Items]
Total	79,853	146,081
NAV	79,853	146,081
Fair Value, Measurements, Recurring | Pooled investment funds | Quoted Prices in Active Markets for Identical Assets (Level 1)
Defined Benefit Plan Disclosure [Line Items]
Total	0	0
Fair Value, Measurements, Recurring | Pooled investment funds | Significant Observable Inputs (Level 2)
Defined Benefit Plan Disclosure [Line Items]
Total	0	0
Fair Value, Measurements, Recurring | Pooled investment funds | Significant Unobservable Inputs (Level 3)
Defined Benefit Plan Disclosure [Line Items]
Total	0	0
Fair Value, Measurements, Recurring | Insurance contracts
Defined Benefit Plan Disclosure [Line Items]
Total	4,454	4,211
NAV	0	0
Fair Value, Measurements, Recurring | Insurance contracts | Quoted Prices in Active Markets for Identical Assets (Level 1)
Defined Benefit Plan Disclosure [Line Items]
Total	0	0
Fair Value, Measurements, Recurring | Insurance contracts | Significant Observable Inputs (Level 2)
Defined Benefit Plan Disclosure [Line Items]
Total	0	0
Fair Value, Measurements, Recurring | Insurance contracts | Significant Unobservable Inputs (Level 3)
Defined Benefit Plan Disclosure [Line Items]
Total	4,454	4,211
Fair Value, Measurements, Recurring | Cash and cash equivalents
Defined Benefit Plan Disclosure [Line Items]
Total	9,246	9,934
NAV	7,954	8,637
Fair Value, Measurements, Recurring | Cash and cash equivalents | Quoted Prices in Active Markets for Identical Assets (Level 1)
Defined Benefit Plan Disclosure [Line Items]
Total	1,292	1,297
Fair Value, Measurements, Recurring | Cash and cash equivalents | Significant Observable Inputs (Level 2)
Defined Benefit Plan Disclosure [Line Items]
Total	0	0
Fair Value, Measurements, Recurring | Cash and cash equivalents | Significant Unobservable Inputs (Level 3)
Defined Benefit Plan Disclosure [Line Items]
Total	$ 0	$ 0

Pensions and Other Post-retir_9

Pensions and Other Post-retirement Benefits - Schedule of Reconciliation of Level Three Assets (Detail) - Significant Unobservable Inputs (Level 3) - Insurance contracts - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward]
Fair value of plan assets at January 1	$ 4,211	$ 24,396
Net realized and unrealized gains	(119)	(881)
Net purchases, issuances and settlements	362	(19,304)
Fair value of plan assets at December 31	$ 4,454	$ 4,211

Pension and Other Post-retire_2

Pension and Other Post-retirement Benefits - Level 3 Assets Recognized in AOCL (Detail) - Insurance contracts $ in Thousands	Dec. 31, 2022 USD ($)
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Net actuarial losses	$ (1,781)
Prior service cost (credit)	744
Total (before tax effects)	$ (1,037)

Pensions and Other Post-reti_10

Pensions and Other Post-retirement Benefits - Additional Information (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Defined Benefit Plan Disclosure [Line Items]
Estimated contributions by employer to pension plans	$ 8.2
Percentage increase in the costs of covered health care benefits assumed when measuring net periodic benefit expense	5.90%
Percentage decrease in health care benefits for successive year	0.20%
Ultimate health care cost trend rate when measuring net periodic benefit expense	4.50%
Percentage increase in health care benefit cost	6.50%
Estimated future percentage of health care benefits	4.40%
Defined contribution pension plan expense	$ 12.6	$ 11.7	$ 10.6
Pension Benefits
Defined Benefit Plan Disclosure [Line Items]
Estimated benefit payments, year one	30.2
Estimated benefit payments, year two	29.6
Estimated benefit payments, year three	30.7
Estimated benefit payments, year four	31.1
Estimated benefit payments, year five	31.5
Estimated benefit payments, five years thereafter	164.3
Other Benefits
Defined Benefit Plan Disclosure [Line Items]
Estimated benefit payments, year one	2.2
Estimated benefit payments, year two	2.2
Estimated benefit payments, year three	2
Estimated benefit payments, year four	1.9
Estimated benefit payments, year five	2
Estimated benefit payments, five years thereafter	$ 9.5

Other Income, Net - Schedule of

Other Income, Net - Schedule of Other Income (Loss) (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Other Income and Expenses [Abstract]
Components of net periodic benefit (income) cost other than service cost (Note 15)	$ 22,286	$ 8,321	$ 1,680
Interest income	4,155	3,256	3,498
Loss on asset write-down and dispositions, net	(6,290)	(788)	(236)
Other, net	905	793	742
Total other income, net	$ 21,056	$ 11,582	$ 5,684

Leases - Components of Lease Co

Leases - Components of Lease Cost (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Leases [Abstract]
Operating lease cost	$ 14,970	$ 14,230	$ 13,000
Operating cash flows related to operating leases	14,906	14,440
Right-of-use assets obtained in exchange for new operating lease liabilities	6,418	21,857
Right-of-use assets obtained in acquisitions	$ 0	$ 4,795
Weighted-average remaining lease term	14 years	14 years
Weighted-average discount rate	2.66%	2.49%

Leases - Future Lease Payments

Leases - Future Lease Payments (Detail) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Leases [Abstract]
2022	$ 10,043
2023	7,480
2024	5,200
2025	4,061
2026	3,428
After 2027	22,031
Lease Liability	52,243
Less: Imputed interest	7,938
Present value of operating lease liabilities	$ 44,305
Operating Lease, Liability, Current, Statement of Financial Position [Extensible List]	Accrued restructuring (Note 3) and other current liabilities
Less: Current portion operating lease liabilities	$ 8,960
Noncurrent operating lease liabilities (Note 17)	$ 35,345	$ 40,706

Derivative Financial Instrume_3

Derivative Financial Instruments - Additional Information (Detail) - Foreign Exchange Forward	12 Months Ended
	Dec. 31, 2022 USD ($)
Derivative [Line Items]
Notional amount of open forward contracts	$ 103,000,000
Unrealized gain (loss) on derivatives	$ 0

Derivative Financial Instrume_4

Derivative Financial Instruments - Balance Sheet Location And Fair Value Of Assets And Liabilities Associated With Derivative Financial Instruments (Detail) - Foreign exchange contracts: currency exchange losses, net - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Other current liabilities
Derivatives, Fair Value [Line Items]
Derivatives not designated as hedging instruments	$ 724	$ 619
Other current assets
Derivatives, Fair Value [Line Items]
Derivatives not designated as hedging instruments	$ 85	$ 128

Derivative Financial Instrume_5

Derivative Financial Instruments - Income Statement Location And Impact Of Derivative Financial Instruments (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021
Foreign exchange contracts: currency exchange losses, net | Derivatives not designated as hedging instruments
Derivative Instruments, Gain (Loss) [Line Items]
Foreign exchange contracts: currency exchange losses, net	$ 6,656	$ 5,107

Fair Value Measurements (Detail

Fair Value Measurements (Detail) - USD ($)	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021
Fair Value Disclosures [Abstract]
Amortized cost of investments	$ 9,900,000	$ 49,000,000
Fair value of short term investments	9,900,000	49,000,000
Gain (loss) on investment	0
Carrying amount of long-term debt	266,500,000	274,300,000
Fair value of long-term debt	$ 218,300,000	$ 279,800,000

Contingencies - Additional Info

Contingencies - Additional Information (Detail) $ in Thousands	3 Months Ended		12 Months Ended
	Mar. 31, 2023 USD ($)	Dec. 31, 2022 USD ($) claim lawsuit	Dec. 31, 2022 USD ($) subsidiary claim lawsuit	Dec. 31, 2021 USD ($) lawsuit	Dec. 31, 2020 USD ($) lawsuit	Jan. 05, 2023 USD ($)	Dec. 31, 2019 lawsuit
Loss Contingencies [Line Items]
Product liability accrual				$ 409,800
Product liability, expense			$ 20,590	185,264	$ 39,036
Insurance receivables		$ 127,600	127,600	130,200	97,000
Insurance receivables, current		17,300	17,300	8,600
Insurance receivable, noncurrent		110,300	110,300	121,600
Notes receivable from insurance companies		44,600	44,600	48,500	52,300
Notes receivable from insurance companies, current		5,931	5,931	3,914
Notes receivable from insurance companies, noncurrent		38,695	38,695	44,626
Loss on disposition			$ 6,290	788	236
Number of defendants (in subsidiaries) | subsidiary			2
Product warranty expense			$ 13,400	10,000	9,600
Payments for Legal Settlements		26,300
Claims incurred but not yet paid			10,500
Subsequent Event | MSA LLC | Joint Venture By R&Q Insurance Holdings Ltd. And Obra Capital, Inc.
Loss Contingencies [Line Items]
Contributed cash and cash equivalents by business acquiree						$ 35,000
MSA LLC | Discontinued Operations, Disposed of by Sale | Subsequent Event
Loss Contingencies [Line Items]
Contributed cash and cash equivalents in divestiture						$ 341,000
MSA LLC | Discontinued Operations, Disposed of by Sale | Subsequent Event | Forecast
Loss Contingencies [Line Items]
Loss on disposition	$ 200,000
Single Incident
Loss Contingencies [Line Items]
Product liability accrual		$ 1,400	$ 1,400	$ 1,400
Product liability, expense					$ 1,700
Lawsuits
Loss Contingencies [Line Items]
Number of lawsuits (in lawsuits) | lawsuit		1,500	1,500	1,675	1,622		1,605
Cumulative trauma
Loss Contingencies [Line Items]
Product liability accrual		$ 395,100	$ 395,100
Product liability, expense		8,400	22,200	$ 228,200	$ 77,800
Claims settled, but not yet paid
Loss Contingencies [Line Items]
Product liability accrual		$ 13,400	13,400	2,500
Uninsured cumulative trauma
Loss Contingencies [Line Items]
Product liability, expense			$ 20,600	185,300	$ 39,000
Damages From Product Substances
Loss Contingencies [Line Items]
Number of lawsuits (in lawsuits) | claim		1,865	1,865
Number of lawsuits | lawsuit		34	34
Other current liabilities | Cumulative trauma
Loss Contingencies [Line Items]
Product liability accrual		$ 65,100	$ 65,100	46,700
Other noncurrent liabilities | Cumulative trauma
Loss Contingencies [Line Items]
Product liability accrual				$ 363,100
Other noncurrent liabilities | Cumulative trauma, reported claims
Loss Contingencies [Line Items]
Reserves for product liability claims		$ 330,000	$ 330,000

Contingencies - Summary of Cumu

Contingencies - Summary of Cumulative Trauma Product Liability Claims Activity (Detail)	12 Months Ended
	Dec. 31, 2022 lawsuit claim	Dec. 31, 2021 lawsuit claim	Dec. 31, 2020 lawsuit claim
Lawsuits
Loss Contingency, Quantities [Roll Forward]
Beginning of period | lawsuit	1,675	1,622	1,605
New lawsuits | lawsuit	300	432	402
Settled, inactive and dismissed claims | lawsuit	(475)	(379)	(385)
End of period | lawsuit	1,500	1,675	1,622
Pending claims
Loss Contingency, Quantities [Roll Forward]
Beginning of period | claim	4,554	2,878	2,456
New lawsuits | claim	520	2,134	917
Settled, inactive and dismissed claims | claim	(1,020)	(458)	(495)
End of period | claim	4,054	4,554	2,878

Contingencies - Summary of Insu

Contingencies - Summary of Insurance Receivable Balances and Activity Related to Cumulative Trauma Product Liability Losses (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021
Movement in Loss Contingency Receivable, Increase (Decrease) [Roll Forward]
Balance beginning of period	$ 130.2	$ 97
Additions	1.8	43.5
Collections	(4.4)	(10.3)
Balance end of period	$ 127.6	$ 130.2

Contingencies - Summary of Note

Contingencies - Summary of Notes Receivable from Insurance Companies and Activity During the Year (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021
Movement in Loss Contingency Receivable, Increase (Decrease) [Roll Forward]
Balance beginning of period	$ 48.5	$ 52.3
Additions	1.2	1.3
Collections	(5.1)	(5.1)
Balance end of period	$ 44.6	$ 48.5

Contingencies - Warranty Reserv

Contingencies - Warranty Reserve (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Warranty Expense [Rollforward]
Beginning warranty reserve	$ 12,423	$ 11,428	$ 12,715
Warranty payments	(10,631)	(8,987)	(10,861)
Warranty claims	14,544	10,225	10,233
Provision for product warranties and other adjustments	(1,106)	(243)	(659)
Ending warranty reserve	$ 15,230	$ 12,423	$ 11,428

Quarterly Financial Informati_3

Quarterly Financial Information (Unaudited) - Schedule of Quarterly Financial Information (Detail) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2022	Sep. 30, 2022	Jun. 30, 2022	Mar. 31, 2022	Dec. 31, 2021	Sep. 30, 2021	Jun. 30, 2021	Mar. 31, 2021	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Quarterly Financial Information Disclosure [Abstract]
Net sales	$ 443,254	$ 381,694	$ 372,313	$ 330,692	$ 410,268	$ 340,197	$ 341,289	$ 308,428	$ 1,527,953	$ 1,400,182	$ 1,348,223
Gross profit	197,252	169,395	164,400	142,784	178,124	149,439	153,000	134,785	673,831	615,348	595,492
Net income attributable to MSA Safety Incorporated	$ 51,489	$ 44,906	$ 47,693	$ 35,542	$ (61,476)	$ 21,180	$ 25,186	$ 36,450	$ 179,630	$ 21,340	$ 124,077
Earnings per share
Basic (in dollars per share)	$ 1.31	$ 1.15	$ 1.21	$ 0.90	$ (1.57)	$ 0.54	$ 0.64	$ 0.93	$ 4.58	$ 0.54	$ 3.19
Diluted (in dollars per share)	$ 1.31	$ 1.14	$ 1.21	$ 0.90	$ (1.57)	$ 0.54	$ 0.64	$ 0.92	$ 4.56	$ 0.54	$ 3.15

Schedule II - Valuation and Q_2

Schedule II - Valuation and Qualifying Accounts - Roll Forward (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Allowance for doubtful accounts
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward]
Balance at beginning of year	$ 5,789	$ 5,344	$ 4,860
Charged to costs and expenses	1,253	1,645	1,172
Deductions from reserves, net	273	1,200	688
Balance at end of year	6,769	5,789	5,344
Income tax valuation allowance
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward]
Balance at beginning of year	8,812	7,188	5,936
Charged to costs and expenses	2,771	2,575	2,854
Deductions from reserves, net	1,566	951	1,602
Balance at end of year	$ 10,017	$ 8,812	$ 7,188

Schedule II - Valuation and Q_3

Schedule II - Valuation and Qualifying Accounts - Additional Information (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Allowance for doubtful accounts
SEC Schedule, 12-09, Valuation and Qualifying Accounts Disclosure [Line Items]
Currency translation gains (losses)	$ 202	$ 79	$ (107)
Income tax valuation allowance
SEC Schedule, 12-09, Valuation and Qualifying Accounts Disclosure [Line Items]
Currency translation gains (losses)	$ 622	$ 29	$ (41)