MSA Safety (MSA) 10-Q 1 Aug 23 2023 Q1 Quarterly report Financial data

Cover

Cover - shares	6 Months Ended
	Jun. 30, 2023	Jul. 21, 2023
Cover [Abstract]
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Jun. 30, 2023
Document Transition Report	false
Entity File Number	1-15579
Entity Registrant Name	MSA SAFETY INC
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
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
Entity Shell Company	false
Title of 12(b) Security	Common Stock, no par value
Trading Symbol	MSA
Security Exchange Name	NYSE
Entity Common Stock, Shares Outstanding (in shares)		39,300,935
Amendment Flag	false
Document Fiscal Year Focus	2023
Document Fiscal Period Focus	Q1
Entity Central Index Key	0000066570
Current Fiscal Year End Date	--12-31

Condensed Consolidated Statemen

Condensed Consolidated Statements of Income - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Income Statement [Abstract]
Net sales	$ 447,299	$ 372,313	$ 845,561	$ 703,005
Cost of products sold	233,503	207,913	450,367	395,821
Gross profit	213,796	164,400	395,194	307,184
Selling, general and administrative	96,336	86,076	187,427	164,625
Research and development	15,992	15,268	31,224	28,601
Restructuring charges (Note 3)	3,350	57	5,097	2,247
Currency exchange losses (gains), net	3,110	(1,463)	7,285	1,809
Loss on divestiture of MSA LLC (Note 17)	0	0	129,211	0
Product liability expense (Note 17)	0	2,926	3	5,698
Operating income	95,008	61,536	34,947	104,204
Interest expense	13,175	4,578	24,651	8,196
Other income, net	(5,650)	(6,419)	(9,450)	(12,762)
Total other expense (income), net	7,525	(1,841)	15,201	(4,566)
Income before income taxes	87,483	63,377	19,746	108,770
Provision for income taxes (Note 10)	20,393	15,684	102,829	25,535
Net income (loss)	$ 67,090	$ 47,693	$ (83,083)	$ 83,235
Earnings (loss) per share attributable to common shareholders (Note 9):
Basic (in dollars per share)	$ 1.71	$ 1.21	$ (2.12)	$ 2.12
Diluted (in dollars per share)	1.70	1.21	(2.12)	2.11
Dividends per common share (in dollars per share)	$ 0.47	$ 0.46	$ 0.93	$ 0.90

Condensed Consolidated Statem_2

Condensed Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Statement of Comprehensive Income [Abstract]
Net income (loss)	$ 67,090	$ 47,693	$ (83,083)	$ 83,235
Other comprehensive gains (losses), net of tax:
Foreign currency translation adjustments (Note 6)	5,039	(31,606)	16,233	(25,714)
Pension and post-retirement plan actuarial gains, net of tax (Note 6)	115	2,330	554	4,594
Unrealized (loss) gain on available-for-sale securities (Note 6)	0	(9)	2	(18)
Total other comprehensive income (loss), net of tax	5,154	(29,285)	16,789	(21,138)
Comprehensive income (loss)	$ 72,244	$ 18,408	$ (66,294)	$ 62,097

Condensed Consolidated Balance

Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Jun. 30, 2023	Dec. 31, 2022
Assets
Cash and cash equivalents	$ 146,897	$ 162,902
Trade receivables, less allowance for credit loss of $7,124 and $6,769	302,201	297,028
Inventories (Note 4)	337,954	338,316
Investments, short-term (Note 16)	0	9,905
Prepaid income taxes	26,900	21,700
Notes receivable, insurance companies (Note 17)	0	5,931
Prepaid expenses and other current assets	36,428	44,344
Total current assets	850,380	880,126
Property, plant and equipment, net (Note 5)	206,066	207,552
Operating lease right-of-use assets, net	42,330	44,142
Prepaid pension cost (Note 14)	148,172	141,643
Deferred tax assets (Note 10)	26,867	25,490
Goodwill (Note 13)	626,262	620,622
Intangible assets, net (Note 13)	275,305	281,853
Notes receivable, insurance companies (Note 17)	0	38,695
Insurance receivables (Note 17) and other noncurrent assets	23,769	136,853
Total assets	2,199,151	2,376,976
Liabilities
Notes payable and current portion of long-term debt (Note 12)	26,492	7,387
Accounts payable	107,046	112,532
Employees’ compensation	39,812	45,077
Insurance and product liability (Note 17)	9,613	73,898
Income taxes payable (Note 10)	25,191	6,149
Accrued restructuring (Note 3) and other current liabilities	91,796	100,822
Total current liabilities	299,950	345,865
Long-term debt, net (Note 12)	787,527	565,445
Pensions and other employee benefits (Note 14)	139,783	137,810
Noncurrent operating lease liabilities	33,870	35,345
Deferred tax liabilities (Note 10)	102,744	31,881
Product liability (Note 17) and other noncurrent liabilities	4,146	336,889
Total liabilities	1,368,020	1,453,235
Equity
Preferred stock, 4.5% cumulative, $50 par value (Note 7)	3,569	3,569
Common stock, no par value (Note 7)	294,364	281,980
Treasury shares, at cost (Note 7)	(363,624)	(361,438)
Accumulated other comprehensive loss (Note 6)	(141,928)	(158,717)
Retained earnings	1,038,750	1,158,347
Total shareholders’ equity	831,131	923,741
Total liabilities and shareholders’ equity	$ 2,199,151	$ 2,376,976

Condensed Consolidated Balanc_2

Condensed Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Thousands	6 Months Ended	12 Months Ended
	Jun. 30, 2023	Dec. 31, 2022
Statement of Financial Position [Abstract]
Trade receivables, allowance for credit loss	$ 7,124	$ 6,769
Cumulative preferred stock (percent)	4.50%	4.50%
Preferred stock, par value (dollars per share)	$ 50,000	$ 50,000

Condensed Consolidated Statem_3

Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022
Operating Activities
Net income (loss)	$ (83,083)	$ 83,235
Depreciation and amortization	29,461	28,087
Tax-effected loss on divestiture of MSA LLC (Note 17)	199,578	0
Stock-based compensation (Note 11)	13,029	8,358
Pension income (Note 14)	(4,040)	(5,304)
Deferred income tax benefit (Note 10)	(393)	(1,526)
(Gain) loss on asset dispositions, net	(713)	124
Pension contributions (Note 14)	(4,092)	(3,829)
Currency exchange losses, net	7,285	1,809
Product liability expense (Note 17)	3	5,698
Collections on insurance receivables and notes receivable, insurance companies (Note 17)	0	3,906
Product liability payments (Note 17)	(5,250)	(3,653)
Contribution on divestiture of MSA LLC (Note 17)	(341,186)	0
Changes in:
Trade receivables	(10,410)	(12,505)
Inventories (Note 4)	5,896	(69,726)
Accounts payable	(6,756)	7,106
Other current assets and liabilities	5,943	(3,590)
Other noncurrent assets and liabilities	3,887	1,786
Cash Flow (Used in) From Operating Activities	(190,841)	39,976
Investing Activities
Capital expenditures	(18,322)	(19,805)
Proceeds from maturities of short-term investments (Note 16)	0	69,000
Purchase of short-term investments (Note 16)	0	(54,793)
Property disposals and other investing	2,674	0
Cash Flow Used in Investing Activities	(15,648)	(5,598)
Financing Activities
Proceeds from long-term debt (Note 12)	1,108,000	572,000
Payments on long-term debt (Note 12)	(871,102)	(535,000)
Debt issuance costs	(963)	0
Cash dividends paid	(36,514)	(35,401)
Company stock purchases (Note 7)	(3,871)	(32,156)
Exercise of stock options (Note 7)	542	298
Employee stock purchase plan (Note 7)	497	486
Cash Flow From (Used in) Financing Activities	196,589	(29,773)
Effect of exchange rate changes on cash, cash equivalents and restricted cash	(5,651)	(10,474)
Decrease in cash, cash equivalents and restricted cash	(15,551)	(5,869)
Beginning cash, cash equivalents and restricted cash	164,428	141,438
Ending cash, cash equivalents and restricted cash	148,877	135,569
Supplemental cash flow information:
Cash and cash equivalents	146,897	134,047
Restricted cash included in prepaid expenses and other current assets	1,980	1,522
Total cash, cash equivalents and restricted cash	$ 148,877	$ 135,569

Condensed Consolidated Statem_4

Condensed Consolidated Statements of Changes in Retained Earnings, Accumulated Other Comprehensive Loss and Noncontrolling Interests - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	$ 67,090	$ 47,693	$ (83,083)	$ 83,235
Pension and post-retirement plan adjustments, net of tax	115	2,330	554	4,594
Preferred dividends	(10)	(10)	(20)	(20)
Retained Earnings
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning balance	990,129	1,068,464	1,158,347	1,050,214
Net income	67,090	47,693	(83,083)	83,235
Common dividends	(18,459)	(18,099)	(36,494)	(35,381)
Preferred dividends	(10)	(10)	(20)	(20)
Ending balance	1,038,750	1,098,048	1,038,750	1,098,048
Accumulated Other Comprehensive (Loss)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning balance	(147,082)	(140,993)	(158,717)	(149,140)
Foreign currency translation adjustments	5,039	(31,606)	16,233	(25,714)
Pension and post-retirement plan adjustments, net of tax	115	2,330	554	4,594
Unrealized net gains (losses) on available-for-sale securities		(9)	2	(18)
Ending balance	$ (141,928)	$ (170,278)	$ (141,928)	$ (170,278)

Condensed Consolidated Statem_5

Condensed Consolidated Statements of Changes in Retained Earnings, Accumulated Other Comprehensive Loss and Noncontrolling Interests (Parenthetical) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Statement of Stockholders' Equity [Abstract]
Tax reclassification adjustment	$ 46	$ 950	$ 232	$ 1,966
Common stock, dividends (in dollars per share)	$ 0.47	$ 0.46	$ 0.93	$ 0.90
Preferred stock, dividends (in dollars per share)	$ 0.5625	$ 0.5625	$ 1.125	$ 1.125

Basis of Presentation

Basis of Presentation	6 Months Ended
	Jun. 30, 2023
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Basis of Presentation	Basis of PresentationThe condensed consolidated financial statements of MSA Safety Incorporated and its subsidiaries ("MSA" or "the Company") are unaudited. These unaudited condensed consolidated financial statements include all adjustments, consisting of normal recurring adjustments, considered necessary by management to fairly state the Company's results. Intercompany accounts and transactions have been eliminated. The results reported in these unaudited condensed consolidated financial statements are not necessarily indicative of the results that may be expected for the entire year. The December 31, 2022, Balance Sheet data was derived from the audited Consolidated Balance Sheets, but does not include all disclosures required by accounting principles generally accepted in the United States of America ("U.S. GAAP"). This Form 10-Q report should be read in conjunction with MSA's Form 10-K for the year ended December 31, 2022, which includes all disclosures required by U.S. GAAP.

Cash and Cash Equivalents

Cash and Cash Equivalents	6 Months Ended
	Jun. 30, 2023
Cash and Cash Equivalents [Abstract]
Cash and Cash Equivalents	Cash and Cash Equivalents Several of the Company's subsidiaries 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 unaudited Condensed Consolidated Balance Sheets. The Company's net cash pool position consisted of the following: (In thousands) June 30, 2023 Gross cash pool position $ 84,369 Less: cash pool borrowings (82,278) Net cash pool position $ 2,091

Restructuring Charges

Restructuring Charges	6 Months Ended
	Jun. 30, 2023
Restructuring and Related Activities [Abstract]
Restructuring Charges	Restructuring Charges During the three and six months ended June 30, 2023, we recorded restructuring charges of $3.4 million and $5.1 million, respectively. Americas segment restructuring charges of $2.2 million during the six months ended June 30, 2023, were related to manufacturing footprint optimization activities. International segment restructuring charges of $1.5 million during the six months ended June 30, 2023, were related to ongoing initiatives to drive profitable growth and rightsize our operations including the expansion of our European Shared Service Center in Warsaw, Poland. During the three and six months ended June 30, 2022, we recorded restructuring charges of $0.1 million and $2.2 million, respectively. International segment restructuring charges of $2.1 million during the six months ended June 30, 2022, were primarily related to the expansion of our European Shared Service Center in Warsaw, Poland. Americas segment restructuring charges of $0.3 million during the six months ended June 30, 2022, were primarily related to initiatives to optimize our manufacturing footprint . Restructuring reserves are included in Accrued restructuring and other current liabilities in the accompanying unaudited Condensed Consolidated Balance Sheets. Activity and reserve balances for restructuring by segment were as follows: (In millions) Americas International Corporate Total 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 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 Restructuring charges 2.2 1.5 1.4 5.1 Currency translation — 0.1 — 0.1 Cash payments (2.9) (4.1) (1.2) (8.2) Reserve balances at June 30, 2023 $ 1.0 $ 10.3 $ 0.7 $ 12.0

Inventories

Inventories	6 Months Ended
	Jun. 30, 2023
Inventory Disclosure [Abstract]
Inventories	Inventories The following table sets forth the components of inventory: (In thousands) June 30, 2023 December 31, 2022 Finished products $ 100,992 $ 97,142 Work in process 23,400 16,360 Raw materials and supplies 213,562 224,814 Total inventories $ 337,954 $ 338,316

Property, Plant and Equipment

Property, Plant and Equipment	6 Months Ended
	Jun. 30, 2023
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, net: (In thousands) June 30, 2023 December 31, 2022 Land $ 4,321 $ 4,884 Buildings 138,194 138,618 Machinery and equipment 480,637 466,394 Construction in progress 21,746 22,097 Total 644,898 631,993 Less: accumulated depreciation (438,832) (424,441) Property, plant and equipment, net $ 206,066 $ 207,552

Reclassifications Out of Accumu

Reclassifications Out of Accumulated Other Comprehensive Loss	6 Months Ended
	Jun. 30, 2023
Equity [Abstract]
Reclassifications Out of Accumulated Other Comprehensive Loss	Reclassifications Out of Accumulated Other Comprehensive Loss Changes in accumulated other comprehensive loss were as follows: Three Months Ended June 30, Six Months Ended June 30, (In thousands) 2023 2022 2023 2022 Pension and other post-retirement benefits (a) Balance at beginning of period $ (49,896) $ (55,032) $ (50,335) $ (57,296) Amounts reclassified from accumulated other comprehensive loss into net income (loss): Amortization of prior service credit (Note 14) (24) (48) (48) (96) Recognized net actuarial losses (Note 14) 185 3,328 370 6,656 Tax (benefit) expense (46) (950) 232 (1,966) Total amount reclassified from accumulated other comprehensive loss, net of tax, into net income (loss) 115 2,330 554 4,594 Balance at end of period $ (49,781) $ (52,702) $ (49,781) $ (52,702) Available-for-sale securities Balance at beginning of period $ — $ (14) $ (2) $ (5) Unrealized net (losses) gains on available-for-sale securities (Note 16) — (9) 2 (18) Balance at end of period $ — $ (23) $ — $ (23) Foreign currency translation Balance at beginning of period $ (97,186) $ (85,947) $ (108,380) $ (91,839) Foreign currency translation adjustments 5,039 (31,606) 16,233 (25,714) Balance at end of period $ (92,147) $ (117,553) $ (92,147) $ (117,553) (a) Reclassifications out of accumulated other comprehensive loss and into net income (loss) are included in the computation of net periodic pension and other post-retirement benefit costs (refer to Note 14—Pensions and Other Post-retirement Benefits).

Capital Stock

Capital Stock	6 Months Ended
	Jun. 30, 2023
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 are 71,340 shares issued and 52,998 shares held in treasury at both June 30, 2023 and December 31, 2022. The Treasury shares at cost line in the unaudited Condensed 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 six months ended June 30, 2023 or 2022. 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 June 30, 2023. 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 June 30, 2023 and December 31, 2022. No new shares were issued during the six months ended June 30, 2023 or 2022. There were 39,290,833 and 39,213,064 shares outstanding at June 30, 2023 and December 31, 2022, 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 stock repurchase program has no expiration date. The maximum number of shares that may be repurchased is calculated based on the dollars remaining under the program and the respective month-end closing share price. During the six months ended June 30, 2023, no shares were repurchased under the program. During the six months ended June 30, 2022, 231,835 shares were repurchased under the program. There were 22,790,558 and 22,868,327 Treasury shares at June 30, 2023 and December 31, 2022, 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 105,894 and 110,696 Treasury shares issued for these purposes during the six months ended June 30, 2023 and 2022, respectively. Common stock activity is summarized as follows: Three Months Ended June 30, 2023 Three Months Ended June 30, 2022 (In thousands) Common Treasury Common Treasury Balance at beginning of period $ 287,009 $ (362,280) $ 262,627 $ (331,160) Stock compensation expense 6,759 — 4,629 — Restricted and performance stock awards (190) 190 (201) 201 Stock options exercised 354 184 166 80 Treasury shares purchased for stock compensation programs — (184) — (272) Employee stock purchase program 432 65 424 62 Share repurchase program — — — (28,225) Balance at end of period $ 294,364 $ (362,025) $ 267,645 $ (359,314) Six Months Ended June 30, 2023 Six Months Ended June 30, 2022 (In thousands) Common Treasury Common Treasury Balance at beginning of period $ 281,980 $ (359,838) $ 260,121 $ (328,776) Stock compensation expense 13,029 — 8,358 — Restricted and performance stock awards (1,434) 1,434 (1,461) 1,461 Stock options exercised 357 185 203 95 Treasury shares purchased for stock compensation programs — (3,871) — (3,931) Employee stock purchase program 432 65 424 62 Share repurchase program — — — (28,225) Balance at end of period $ 294,364 $ (362,025) $ 267,645 $ (359,314)

Segment Information

Segment Information	6 Months Ended
	Jun. 30, 2023
Segment Reporting [Abstract]
Segment Information	Segment Information The Company is 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 Northern North American and Latin American 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 (loss) excluding restructuring charges, currency exchange (gains) losses, product liability expense, loss on divestiture of MSA LLC, transaction costs and 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 unaudited condensed 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, except percentages) Americas International Corporate Consolidated Three Months Ended June 30, 2023 Net sales to external customers $ 308,378 $ 138,921 $ — $ 447,299 Operating income 95,008 Restructuring charges (Note 3) 3,350 Currency exchange losses, net 3,110 Amortization of acquisition-related intangible assets 2,315 Adjusted operating income (loss) 94,816 21,743 (12,776) 103,783 Adjusted operating margin % 30.7 % 15.7 % Depreciation and amortization 12,574 Adjusted EBITDA 103,977 24,949 (12,569) 116,357 Adjusted EBITDA margin % 33.7 % 18.0 % Three Months Ended June 30, 2022 Net sales to external customers $ 252,386 $ 119,927 $ — $ 372,313 Operating income 61,536 Restructuring charges (Note 3) 57 Currency exchange gains, net (1,463) Product liability expense (Note 17) 2,926 Amortization of acquisition-related intangible assets 2,318 Transaction costs (a) 239 Adjusted operating income (loss) 57,141 17,207 (8,735) 65,613 Adjusted operating margin % 22.6 % 14.3 % Depreciation and amortization 11,604 Adjusted EBITDA 65,461 20,370 (8,614) 77,217 Adjusted EBITDA margin % 25.9 % 17.0 % (a) Transaction costs include advisory, legal, accounting, valuation, and other professional or consulting fees incurred during acquisitions and divestitures. These costs are included in Selling, general and administrative expense in the unaudited Condensed Consolidated Statements of Operations. (In thousands, except percentages) Americas International Corporate Consolidated Six Months Ended June 30, 2023 Net sales to external customers $ 588,645 $ 256,916 $ — $ 845,561 Operating income 34,947 Restructuring charges (Note 3) 5,097 Currency exchange losses, net 7,285 Loss on divestiture of MSA LLC (Note 17) 129,211 Product liability expense (Note 17) 3 Amortization of acquisition-related intangible assets 4,620 Adjusted operating income (loss) 166,510 37,522 (22,869) 181,163 Adjusted operating margin % 28.3 % 14.6 % Depreciation and amortization 24,841 Adjusted EBITDA 184,471 44,007 (22,474) 206,004 Adjusted EBITDA margin % 31.3 % 17.1 % Six Months Ended June 30, 2022 Net sales to external customers $ 478,034 $ 224,971 $ — $ 703,005 Operating income 104,204 Restructuring charges (Note 3) 2,247 Currency exchange losses, net 1,809 Product liability expense (Note 17) 5,698 Amortization of acquisition-related intangible assets 4,667 Transaction costs (a) 832 Adjusted operating income (loss) 109,577 26,196 (16,316) 119,457 Adjusted operating margin % 22.9 % 11.6 % Depreciation and amortization 23,420 Adjusted EBITDA 126,256 32,698 (16,077) 142,877 Adjusted EBITDA margin % 26.4 % 14.5 % (a) Transaction costs include advisory, legal, accounting, valuation, and other professional or consulting fees incurred during acquisitions and divestitures. These costs are included in Selling, general and administrative expense in the unaudited Condensed Consolidated Statements of Operations. Total sales by product group was as follows: Three Months Ended June 30, 2023 Consolidated Americas International (In thousands, except percentages) Dollars Percent Dollars Percent Dollars Percent Fixed Gas & Flame Detection $ 105,855 24% $ 66,387 22% $ 39,468 29% Breathing Apparatus 101,231 23% 69,268 22% 31,963 23% Firefighter Helmets & Protective Apparel 65,259 15% 51,889 17% 13,370 10% Portable Gas Detection 52,387 12% 37,987 12% 14,400 10% Industrial Head Protection 47,164 10% 36,092 12% 11,072 8% Fall Protection 33,882 7% 22,475 7% 11,407 8% Other 41,521 9% 24,280 8% 17,241 12% Total $ 447,299 100% $ 308,378 100% $ 138,921 100% Three Months Ended June 30, 2022 Consolidated Americas International (In thousands, except percentages) Dollars Percent Dollars Percent Dollars Percent Fixed Gas & Flame Detection $ 80,498 22% $ 50,514 20% $ 29,984 25% Breathing Apparatus 91,950 25% 64,610 26% 27,340 23% Firefighter Helmets & Protective Apparel 47,899 13% 35,037 14% 12,862 11% Portable Gas Detection 44,892 12% 31,665 13% 13,227 11% Industrial Head Protection 43,724 12% 34,023 13% 9,701 8% Fall Protection 26,614 7% 17,005 7% 9,609 8% Other 36,736 9% 19,532 7% 17,204 14% Total $ 372,313 100% $ 252,386 100% $ 119,927 100% Six Months Ended June 30, 2023 Consolidated Americas International (In thousands, except percentages) Dollars Percent Dollars Percent Dollars Percent Fixed Gas & Flame Detection $ 199,490 24% $ 127,530 22% $ 71,960 28% Breathing Apparatus 177,952 21% 122,037 21% 55,915 22% Firefighter Helmets & Protective Apparel 127,926 15% 101,176 17% 26,750 10% Portable Gas Detection 105,353 12% 76,155 13% 29,198 11% Industrial Head Protection 90,071 11% 69,717 12% 20,354 8% Fall Protection 65,039 8% 42,933 7% 22,106 9% Other 79,730 9% 49,097 8% 30,633 12% Total $ 845,561 100% $ 588,645 100% $ 256,916 100% Six Months Ended June 30, 2022 Consolidated Americas International (In thousands, except percentages) Dollars Percent Dollars Percent Dollars Percent Fixed Gas & Flame Detection $ 163,575 23% $ 105,135 22% $ 58,440 26% Breathing Apparatus 162,901 23% 115,008 24% 47,893 21% Firefighter Helmets & Protective Apparel 96,360 14% 68,513 14% 27,847 12% Portable Gas Detection 81,635 12% 57,456 12% 24,179 11% Industrial Head Protection 79,881 11% 62,188 13% 17,693 8% Fall Protection 51,275 7% 33,282 7% 17,993 8% Other 67,378 10% 36,452 8% 30,926 14% Total $ 703,005 100% $ 478,034 100% $ 224,971 100%

Earnings per Share

Earnings per Share	6 Months Ended
	Jun. 30, 2023
Earnings Per Share [Abstract]
Earnings per Share	arnings (Loss) per Share Basic earnings (loss) per share 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 (loss) per share 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 compensation awards that contain nonforfeitable rights to dividends. Three Months Ended June 30, Six Months Ended June 30, (In thousands, except per share values) 2023 2022 2023 2022 Net income (loss) $ 67,090 $ 47,693 $ (83,083) $ 83,235 Preferred stock dividends (10) (10) (20) (20) Net income (loss) attributable to common equity 67,080 47,683 (83,103) 83,215 Dividends and undistributed earnings allocated to participating securities (8) (8) (8) (13) Net income (loss) attributable to common shareholders 67,072 47,675 (83,111) 83,202 Basic weighted-average shares outstanding 39,274 39,266 39,249 39,279 Stock-based compensation awards (a) 135 155 — 193 Diluted weighted-average shares outstanding 39,409 39,421 39,249 39,472 Antidilutive shares — — 158 — Earnings (loss) per share: Basic $ 1.71 $ 1.21 $ (2.12) $ 2.12 Diluted $ 1.70 $ 1.21 $ (2.12) $ 2.11 (a) During periods in which the Company incurs a net loss, stock-based compensation awards are excluded from the computation of diluted earnings per share because their effect would be anti-dilutive. As such, during periods in which the Company incurs a net loss, diluted weighted average shares outstanding are equivalent to basic weighted average shares outstanding.

Income Taxes

Income Taxes	6 Months Ended
	Jun. 30, 2023
Income Tax Disclosure [Abstract]
Income Taxes	Income Taxes The Company's effective tax rate for the three months ended June 30, 2023, was 23.3%, which differs from the United States of America ("U.S.") federal statutory rate of 21% primarily due to state income taxes. The Company's effective tax rate for the three months ended June 30, 2022, was 24.7%, which differs from the U.S. federal statutory rate of 21% primarily due to state income taxes and increased profitability in higher tax jurisdictions. The Company's effective tax rate for the six months ended June 30, 2023, was 520.8%, which differs from the United States of America ("U.S.") federal statutory rate of 21% primarily due to the divestiture of MSA LLC and the non-deductible loss recorded on the derecognition of the product liability reserves and related assets. Refer to Note 17—Contingencies to the unaudited condensed consolidated financial statements in Part I Item 1 of this Form 10-Q for further information on this transaction. The Company's effective tax rate for the six months ended June 30, 2022, was 23.5%, which differs from the U.S. federal statutory rate of 21% primarily due to state income taxes. At June 30, 2023, the Company had a gross liability for unrecognized tax benefits of $3.4 million. The Company has recognized tax benefits associated with these liabilities of $1.8 million at June 30, 2023. The gross liability includes amounts associated with foreign tax exposure in prior periods. The Company recognizes interest and penalties related to unrecognized tax benefits in interest expense and operating expenses, respectively. The Company's liability for accrued interest related to uncertain tax positions was $0.3 million at June 30, 2023. 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 unaudited condensed consolidated financial statements.

Stock Plans

Stock Plans	6 Months Ended
	Jun. 30, 2023
Share-Based Payment Arrangement [Abstract]
Stock Plans	Stock Plans The 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 compensation expense, included in Selling, general and administrative expense in the unaudited Condensed Consolidated Statements of Operations, is as follows: Three Months Ended June 30, Six Months Ended June 30, (In thousands) 2023 2022 2023 2022 Stock compensation expense $ 6,759 $ 4,629 $ 13,029 $ 8,358 Income tax benefit 1,656 1,134 3,192 2,048 Stock compensation expense, net of tax $ 5,103 $ 3,495 $ 9,837 $ 6,310 We have not capitalized any stock-based compensation expense. A summary of stock option activity for the six months ended June 30, 2023, is as follows: Shares Weighted Average Outstanding at January 1, 2023 58,156 $ 46.48 Exercised (11,533) 46.99 Outstanding and exercisable at June 30, 2023 46,623 $ 46.35 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 activity for the six months ended June 30, 2023, is as follows: Shares Weighted Average Unvested at January 1, 2023 145,886 $ 137.36 Granted 68,996 137.31 Vested (38,950) 124.37 Forfeited (4,343) 138.89 Unvested at June 30, 2023 171,589 $ 140.45 Performance stock units that have a market condition modifier are valued at an estimated fair value using a Monte Carlo model. The final number of shares to be issued for performance stock units granted in the first quarter of 2023 may range from 0% to 200% of the target award based on achieving the specified performance targets over the performance period plus an additional modifier based on total shareholder return ("TSR") over the performance period. The following weighted average assumptions were used in estimating the fair value of the performance stock units granted for the six months ended June 30, 2023. Fair value per unit $131.46 Risk-free interest rate 4.4% Expected dividend yield 1.43% Expected volatility 36.7% MSA stock beta 0.739 The risk-free interest rate is based on the U.S. Treasury Constant Maturity rates as of the grant date converted into an implied spot rate yield curve. Expected dividend yield is based on the most recent annualized dividend divided by the one year average closing share price. Expected volatility is based on the three year historical volatility preceding the grant date using daily stock prices. Expected life is based on historical stock option exercise data. A summary of performance stock unit activity for the six months ended June 30, 2023, is as follows: Shares Weighted Average Unvested at January 1, 2023 178,760 $ 146.28 Granted 76,285 129.98 Performance adjustments (a) (3,009) 127.40 Vested (53,407) 127.36 Forfeited (2,306) 139.97 Unvested at June 30, 2023 196,323 $ 146.04 (a) Performance adjustments relate primarily to the final number of shares issued for the 2020 performance unit awards which vested in the first quarter of 2023 at 94.9% of the target award based on both cumulative performance against EBITDA margin and revenue growth targets and MSA's TSR during the three

Long-Term Debt

Long-Term Debt	6 Months Ended
	Jun. 30, 2023
Debt Disclosure [Abstract]
Long-Term Debt	Long-Term Debt (In thousands) June 30, 2023 December 31, 2022 2016 Senior Notes payable through 2031, 3.40%, net of debt issuance costs $ 61,832 $ 66,379 2021 Senior Notes payable through 2036, 2.69%, net of debt issuance costs 99,722 99,711 2021 Senior Notes payable through 2036, 2.69%, net of debt issuance costs 99,722 99,711 2023 Term Loan credit agreement maturing in 2026, net of debt issuance costs 242,971 — 2023 Senior Notes payable through 2028, 5.25%, net of debt issuance costs 49,950 — Senior revolving credit facility maturing in 2026, net of debt issuance costs 259,822 307,031 Total 814,019 572,832 Amounts due within one year 26,492 7,387 Long-term debt, net of debt issuance costs $ 787,527 $ 565,445 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 6.14% as of June 30, 2023. At June 30, 2023, $637.2 million of the existing $900.0 million 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 June 30, 2023, the Company has outstanding £48.8 million (approximately $61.9 million at June 30, 2023) of 3.4% Series B Senior Notes due January 22, 2031. Remaining maturities of this note are £6.1 million (approximately $7.7 million at June 30, 2023) due January 22, 2024, with annual maturities of £6.1 million through January 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. On June 29, 2023, the Company issued $50 million of 5.25% Series B Senior Notes due July 1, 2028, pursuant to the NYL Note Facility (the "Notes"). The Notes bear interest at 5.25% per annum, payable semi-annually, and mature on July 1, 2028. The Notes provide for a principal payment of $25 million on July 1, 2027, with the remaining $25 million due on July 1, 2028. The Notes may be redeemed at the Company’s option prior to their maturity at a make-whole redemption price calculated as provided in the NYL Note Facility. The proceeds of the Notes were used on June 29, 2023, to pay down an equivalent amount of borrowings under the Company’s revolving credit facility with PNC Bank, National Association, as Administrative Agent. 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, subject to certain exceptions and limitations, including carve-outs and baskets. All credit facilities exclude Mine Safety Appliances Company, LLC prior to the divestiture of this subsidiary on January 5, 2023, as discussed further in Note 17. During August 2021 and June 2023, respectively, the Company amended its Revolving Credit Facility to transition from Sterling LIBOR reference rates to Sterling Overnight Interbank Average Rate ("SONIA") reference rates and from U.S. LIBOR reference rates to Secured Overnight Financing Rate ("SOFR") reference rates. The Company will apply the optional expedients in ASC 848, Reference Rate Reform, to these 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 unaudited condensed consolidated financial statements. On January 5, 2023, the Company entered into a new $250 million term loan facility to fund the divestiture of MSA LLC, a wholly owned subsidiary. Under the agreement, the Company may elect either BASE or an interest rate based on the Secured Overnight Financing Rate. The Company pays a credit spread of 0 to 200 basis points based on the Company's net EBITDA leverage ratio and elected rate. The Company had a Term Loan interest rate of 6.76% as of June 30, 2023. As of June 30, 2023, the Company was in full compliance with the restrictive covenants under its various credit agreements.

Goodwill and Intangible Assets

Goodwill and Intangible Assets	6 Months Ended
	Jun. 30, 2023
Goodwill and Intangible Assets Disclosure [Abstract]
Goodwill and Intangible Assets	Goodwill and Intangible Assets, Net Changes in goodwill during the six months ended June 30, 2023, were as follows: (In thousands) Goodwill Balance at January 1, 2023 $ 620,622 Currency translation 5,640 Balance at June 30, 2023 $ 626,262 At June 30, 2023, goodwill of $447.6 million and $178.7 million related to the Americas and International reportable segments, respectively. Changes in intangible assets, net, during the six months ended June 30, 2023, were as follows: (In thousands) Intangible Assets Net balance at January 1, 2023 $ 281,853 Amortization expense (9,018) Currency translation 2,470 Net balance at June 30, 2023 $ 275,305

Pensions and Other Post-retirem

Pensions and Other Post-retirement Benefits	6 Months Ended
	Jun. 30, 2023
Retirement Benefits [Abstract]
Pensions and Other Post-retirement Benefits	Pensions and Other Post-retirement Benefits Components of net periodic benefit (income) cost consisted of the following: Pension Benefits Other Benefits (In thousands) 2023 2022 2023 2022 Three Months Ended June 30, Service cost $ 1,884 $ 3,099 $ 53 $ 82 Interest cost 5,918 3,613 273 148 Expected return on plan assets (9,906) (12,418) — — Amortization of prior service cost (credit) 37 36 (61) (84) Recognized net actuarial losses 47 3,018 138 310 Net periodic benefit (income) cost (a) $ (2,020) $ (2,652) $ 403 $ 456 Six Months Ended June 30, Service cost $ 3,768 $ 6,198 $ 106 $ 164 Interest cost 11,836 7,226 546 296 Expected return on plan assets (19,812) (24,836) — — Amortization of prior service cost (credit) 74 72 (122) (168) Recognized net actuarial losses 94 6,036 276 620 Net periodic benefit (income) cost (a) $ (4,040) $ (5,304) $ 806 $ 912 (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 unaudited Condensed Consolidated Statements of Operations. We made contributions of $4.1 million and $3.8 million to our pension plans during the six months ended June 30, 2023, and 2022, respectively. We expect to make total contributions of $8.2 million to our pension plans in 2023, which are primarily associated with statutorily required plans in the International reporting segment.

Derivative Financial Instrument

Derivative Financial Instruments	6 Months Ended
	Jun. 30, 2023
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 of our foreign currency exposures. We account for these forward contracts at fair value and report the related gains or losses in currency exchange losses (gains), net, in the unaudited Condensed Consolidated Statements of Operations. The notional amount of open forward contracts was $106.6 million and $103.0 million at June 30, 2023, and December 31, 2022, respectively. The following table presents the unaudited Condensed Consolidated Balance Sheets location and fair value of assets and liabilities associated with derivative financial instruments: (In thousands) June 30, 2023 December 31, 2022 Derivatives not designated as hedging instruments: Foreign exchange contracts: prepaid expenses and other current assets $ 31 $ 724 Foreign exchange contracts: accrued restructuring and other current liabilities 488 85 The following table presents the unaudited Condensed Consolidated Statements of Operations and unaudited Condensed Consolidated Statements of Cash Flows location and the (gain) loss impact of derivative financial instruments: Six Months Ended June 30, (In thousands) 2023 2022 Derivatives not designated as hedging instruments: Foreign exchange contracts: currency exchange losses, net $ 123 $ 8,449

Fair Value Measurements

Fair Value Measurements	6 Months Ended
	Jun. 30, 2023
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 include the derivative financial instruments described in Note 15—Derivative Financial Instruments. 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, we believe that the reported carrying amounts of our financial assets and liabilities approximate their fair values. Our investments in available-for-sale marketable securities, primarily fixed income, were transferred to Sag Main Holdings, LLC, on January 5, 2023, as part of our MSA LLC divestiture as described in Note 17—Contingencies. Prior to the divestiture, these investments were valued at fair value using quoted market prices for similar securities or pricing models. Accordingly, the fair values of the investments were classified within Level 2 of the fair value hierarchy. The amortized cost basis of our investments was $9.9 million as of December 31, 2022. The fair value was $9.9 million as of December 31, 2022, which was reported in Investments, short-term in the accompanying unaudited Condensed Consolidated Balance Sheets. Prior to the divestiture, changes in fair value were recorded in Other comprehensive (loss) income, net of tax. No impairment losses relating to these securities occurred during the three months ended March 31, 2023. All investments in marketable securities had maturities of one year or less and were in an unrealized loss position as of December 31, 2022. The reported carrying amount of our fixed rate long-term debt was $311.9 million and $266.5 million at June 30, 2023, and December 31, 2022, respectively. The fair value of this debt was $268.3 million and $218.3 million at June 30, 2023, and December 31, 2022, respectively. The fair value of this debt was determined using Level 2 inputs by evaluating similarly rated companies with publicly traded bonds where available or current borrowing rates available for financings with similar terms and maturities.

Contingencies

Contingencies	6 Months Ended
	Jun. 30, 2023
Commitments and Contingencies Disclosure [Abstract]
Contingencies	Contingencies Product liability The Company and its subsidiaries face an inherent business risk of exposure to legal 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 the Company's 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 $1.5 million at June 30, 2023, and $1.4 million December 31, 2022. Single incident product liability expense was $0.1 million during both the six months ended June 30, 2023 and the six months ended June 30, 2022. 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 alleged exposures to harmful substances (e.g., silica, asbestos and coal dust) that occurred years ago and may have developed over long periods of time into diseases such as silicosis, asbestosis, mesothelioma, or coal worker’s pneumoconiosis. Prior to the divestiture described below, one of the Company's former subsidiaries, Mine Safety Appliances Company, LLC ("MSA LLC"), was named as a defendant in various lawsuits related to such claims. These lawsuits mainly involve respiratory protection products allegedly manufactured and sold by MSA LLC or its predecessors. Management previously established a reserve for MSA LLC's potential exposure to cumulative trauma product liability claims. Prior to its divestiture, 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, as of December 31, 2022. The reserve includes 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 future amounts which will be spent to defend the claims. Defense costs were recognized in the unaudited Condensed Consolidated Statements of Operations as incurred. At December 31, 2022, $65.1 million of the total reserve for cumulative trauma product liability claims was recorded in the Insurance and product liability line within other current liabilities in the Consolidated Balance Sheets and the remainder, $330.0 million, is recorded in the Product liability and other noncurrent liabilities line. Prior to the divestiture, MSA LLC's cumulative trauma product liability reserve was based upon an estimate of MSA LLC’s current and potential future liability for cumulative trauma product liability claims, in accordance with applicable accounting principles. See further discussion on the process and assumptions used to derive this estimate in Note 20—Contingencies of the consolidated financial statements in Part II Item 8 of MSA's Form 10-K for the year ended December 31, 2022. On January 5, 2023, the Company entered into a membership interest purchase agreement (the “Purchase Agreement”) with Sag Main Holdings, LLC (the “Buyer”). The Buyer is a joint venture between R&Q Insurance Holdings Ltd. (“R&Q”) and Obra Capital, Inc. (“Obra”). Under the Purchase Agreement, on January 5, 2023, the Company transferred to the Buyer all of the issued and outstanding limited liability company interests of MSA LLC (the “Sale”). In connection with the closing, the Company contributed $341.2 million in cash and cash equivalents, while R&Q and Obra contributed an additional $35.0 million. As MSA LLC was the obligor for the Company's legacy cumulative trauma product liability reserves and policyholder of the related insurance assets, the rights and obligations related to these items transferred upon the sale to the Buyer. In addition, pursuant to the Purchase Agreement, the Buyer and MSA LLC have agreed to indemnify the Company and its affiliates for legacy cumulative trauma product liabilities and other product liabilities, and a subsidiary of the Company has agreed to indemnify MSA LLC for all other historical liabilities of MSA LLC. This indemnification is not subject to any cap or time limitation. In connection with the sale, the Company and its Board of Directors received a solvency opinion from an independent advisory firm that MSA LLC was solvent and adequately capitalized after giving effect to the transaction. Following the completion of the sale and transfer, the Company no longer has any obligation with respect to pending and future cumulative trauma product liability claims relating to these matters. As such, all legacy cumulative trauma product liability reserves, related insurance assets, and associated deferred tax assets of the divested subsidiary were derecognized from our balance sheet and the Company incurred a tax-effected loss on the divestiture of MSA LLC of $199.6 million, including transaction related costs of $5.6 million. R&Q and Obra's joint venture has assumed management of the divested subsidiary, including the management of its claims and associated assets. Below is a summary of the impact of the divestiture of MSA LLC on our unaudited Condensed Consolidated Statements of Operations for the quarter ended March 31, 2023 (no additional impact for the quarter ended June 30, 2023): (In millions) Three Months Ended March 31, 2023 Cash and cash equivalents $ (341.2) Current insurance receivables (17.3) Notes receivable, insurance companies (5.9) Noncurrent insurance receivables (110.3) Notes receivable, insurance companies, noncurrent (38.7) Current product liability 65.1 Noncurrent product liability 324.7 Loss on divestiture of MSA LLC before transaction costs (123.6) Transaction costs (5.6) Loss on divestiture of MSA LLC (129.2) Income tax expense (a) (70.4) Tax-effected loss on divestiture of MSA LLC $ (199.6) (a) Related to the write-off of deferred tax asset related to product liability reserve 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"). Prior to the divestiture of MSA LLC, when adjustments were made to amounts recorded in the cumulative trauma product liability reserve, we calculated 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 recorded the amounts probable of reimbursement as insurance receivables. Insurance receivables at December 31, 2022 totaled $127.6 million, of which $17.3 million was reported in Prepaid expenses and other current assets in the unaudited Condensed Consolidated Balance Sheets and $110.3 million was reported in Insurance receivables and other noncurrent assets. A summary of insurance receivables balance and activity related to cumulative trauma product liability losses and divestiture of MSA LLC is as follows: (In millions) Six Months Ended June 30, 2023 Year Ended Balance beginning of period $ 127.6 $ 130.2 Divestiture of MSA LLC (127.6) — Additions — 1.8 Collections and other adjustments — (4.4) Balance end of period $ — $ 127.6 Prior to the divestiture of MSA LLC, notes receivable from insurance companies at December 31, 2022 totaled $44.6 million of which $5.9 million was reported in Notes receivable, insurance companies, current in the unaudited Condensed Consolidated Balance Sheets and $38.7 million was reported in Notes receivable, insurance companies, noncurrent. A summary of notes receivables from insurance companies balance is as follows: (In millions) Six Months Ended June 30, 2023 Year Ended Balance beginning of period $ 44.6 $ 48.5 Divestiture of MSA LLC (44.6) — Additions — 1.2 Collections — (5.1) Balance end of period $ — $ 44.6 Other Litigation Globe, a subsidiary of the Company, is defending claims in which plaintiffs assert that certain products allegedly containing per- and polyfluoroalkyl substances (“PFAS”) have caused harm, including injury or health 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. At this time, no manufacturer of firefighter protective clothing is able to meet current National Fire Protection Association safety standards while offering coats or pants that are completely PFAS free. Globe believes it has valid defenses to these claims. 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 unaudited Condensed Consolidated Statements of Operations as incurred. Globe is also pursuing insurance coverage and indemnification related to the lawsuits. As of July 27, 2023, Globe was named as a defendant in 137 lawsuits comprised of approximately 8,231 claims, plus one action filed on behalf of a putative class of Florida firefighters and certain of their dependents. MSA LLC is also a defendant in a number of PFAS lawsuits and Sag Main Holdings, LLC (the "Buyer") assumed responsibility for these and any similar future claims specific to MSA LLC in connection with the divestiture on January 5, 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 changes in the Company's accrued warranty reserve: (In thousands) Six Months Ended June 30, 2023 Year Ended Beginning warranty reserve $ 15,230 $ 12,423 Warranty payments (4,790) (10,631) Warranty claims 4,914 14,544 Provision for product warranties and other adjustments (252) (1,106) Ending warranty reserve $ 15,102 $ 15,230

Basis of Presentation (Policies

Basis of Presentation (Policies)	6 Months Ended
	Jun. 30, 2023
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Consolidation	The condensed consolidated financial statements of MSA Safety Incorporated and its subsidiaries ("MSA" or "the Company") are unaudited. These unaudited condensed consolidated financial statements include all adjustments, consisting of normal recurring adjustments, considered necessary by management to fairly state the Company's results. Intercompany accounts and transactions have been eliminated. The results reported in these unaudited condensed consolidated financial statements are not necessarily indicative of the results that may be expected for the entire year. The December 31, 2022, Balance Sheet data was derived from the audited Consolidated Balance Sheets, but does not include all disclosures required by accounting principles generally accepted in the United States of America ("U.S. GAAP"). This Form 10-Q report should be read in conjunction with MSA's Form 10-K for the year ended December 31, 2022, which includes all disclosures required by U.S. GAAP.

Cash and Cash Equivalents (Tabl

Cash and Cash Equivalents (Tables)	6 Months Ended
	Jun. 30, 2023
Cash and Cash Equivalents [Abstract]
Schedule of Cash and Cash Equivalents	The Company's net cash pool position consisted of the following: (In thousands) June 30, 2023 Gross cash pool position $ 84,369 Less: cash pool borrowings (82,278) Net cash pool position $ 2,091

Restructuring Charges (Tables)

Restructuring Charges (Tables)	6 Months Ended
	Jun. 30, 2023
Restructuring and Related Activities [Abstract]
Schedule of Activity and Reserve Balance for Restructuring Charges by Segment	Activity and reserve balances for restructuring by segment were as follows: (In millions) Americas International Corporate Total 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 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 Restructuring charges 2.2 1.5 1.4 5.1 Currency translation — 0.1 — 0.1 Cash payments (2.9) (4.1) (1.2) (8.2) Reserve balances at June 30, 2023 $ 1.0 $ 10.3 $ 0.7 $ 12.0

Inventories (Tables)

Inventories (Tables)	6 Months Ended
	Jun. 30, 2023
Inventory Disclosure [Abstract]
Schedule of Inventories	The following table sets forth the components of inventory: (In thousands) June 30, 2023 December 31, 2022 Finished products $ 100,992 $ 97,142 Work in process 23,400 16,360 Raw materials and supplies 213,562 224,814 Total inventories $ 337,954 $ 338,316

Property, Plant and Equipment (

Property, Plant and Equipment (Tables)	6 Months Ended
	Jun. 30, 2023
Property, Plant and Equipment [Abstract]
Components of Property, Plant and Equipment	The following table sets forth the components of property, plant and equipment, net: (In thousands) June 30, 2023 December 31, 2022 Land $ 4,321 $ 4,884 Buildings 138,194 138,618 Machinery and equipment 480,637 466,394 Construction in progress 21,746 22,097 Total 644,898 631,993 Less: accumulated depreciation (438,832) (424,441) Property, plant and equipment, net $ 206,066 $ 207,552

Reclassifications Out of Accu_2

Reclassifications Out of Accumulated Other Comprehensive Loss (Tables)	6 Months Ended
	Jun. 30, 2023
Equity [Abstract]
Reclassification Out of Accumulated Other Comprehensive Loss	Changes in accumulated other comprehensive loss were as follows: Three Months Ended June 30, Six Months Ended June 30, (In thousands) 2023 2022 2023 2022 Pension and other post-retirement benefits (a) Balance at beginning of period $ (49,896) $ (55,032) $ (50,335) $ (57,296) Amounts reclassified from accumulated other comprehensive loss into net income (loss): Amortization of prior service credit (Note 14) (24) (48) (48) (96) Recognized net actuarial losses (Note 14) 185 3,328 370 6,656 Tax (benefit) expense (46) (950) 232 (1,966) Total amount reclassified from accumulated other comprehensive loss, net of tax, into net income (loss) 115 2,330 554 4,594 Balance at end of period $ (49,781) $ (52,702) $ (49,781) $ (52,702) Available-for-sale securities Balance at beginning of period $ — $ (14) $ (2) $ (5) Unrealized net (losses) gains on available-for-sale securities (Note 16) — (9) 2 (18) Balance at end of period $ — $ (23) $ — $ (23) Foreign currency translation Balance at beginning of period $ (97,186) $ (85,947) $ (108,380) $ (91,839) Foreign currency translation adjustments 5,039 (31,606) 16,233 (25,714) Balance at end of period $ (92,147) $ (117,553) $ (92,147) $ (117,553) (a) Reclassifications out of accumulated other comprehensive loss and into net income (loss) are included in the computation of net periodic pension and other post-retirement benefit costs (refer to Note 14—Pensions and Other Post-retirement Benefits).

Capital Stock (Tables)

Capital Stock (Tables)	6 Months Ended
	Jun. 30, 2023
Equity [Abstract]
Common Stock Activity	Common stock activity is summarized as follows: Three Months Ended June 30, 2023 Three Months Ended June 30, 2022 (In thousands) Common Treasury Common Treasury Balance at beginning of period $ 287,009 $ (362,280) $ 262,627 $ (331,160) Stock compensation expense 6,759 — 4,629 — Restricted and performance stock awards (190) 190 (201) 201 Stock options exercised 354 184 166 80 Treasury shares purchased for stock compensation programs — (184) — (272) Employee stock purchase program 432 65 424 62 Share repurchase program — — — (28,225) Balance at end of period $ 294,364 $ (362,025) $ 267,645 $ (359,314) Six Months Ended June 30, 2023 Six Months Ended June 30, 2022 (In thousands) Common Treasury Common Treasury Balance at beginning of period $ 281,980 $ (359,838) $ 260,121 $ (328,776) Stock compensation expense 13,029 — 8,358 — Restricted and performance stock awards (1,434) 1,434 (1,461) 1,461 Stock options exercised 357 185 203 95 Treasury shares purchased for stock compensation programs — (3,871) — (3,931) Employee stock purchase program 432 65 424 62 Share repurchase program — — — (28,225) Balance at end of period $ 294,364 $ (362,025) $ 267,645 $ (359,314)

Segment Information (Tables)

Segment Information (Tables)	6 Months Ended
	Jun. 30, 2023
Segment Reporting [Abstract]
Schedule of Reportable Segment Information	Reportable segment information is presented in the following table: (In thousands, except percentages) Americas International Corporate Consolidated Three Months Ended June 30, 2023 Net sales to external customers $ 308,378 $ 138,921 $ — $ 447,299 Operating income 95,008 Restructuring charges (Note 3) 3,350 Currency exchange losses, net 3,110 Amortization of acquisition-related intangible assets 2,315 Adjusted operating income (loss) 94,816 21,743 (12,776) 103,783 Adjusted operating margin % 30.7 % 15.7 % Depreciation and amortization 12,574 Adjusted EBITDA 103,977 24,949 (12,569) 116,357 Adjusted EBITDA margin % 33.7 % 18.0 % Three Months Ended June 30, 2022 Net sales to external customers $ 252,386 $ 119,927 $ — $ 372,313 Operating income 61,536 Restructuring charges (Note 3) 57 Currency exchange gains, net (1,463) Product liability expense (Note 17) 2,926 Amortization of acquisition-related intangible assets 2,318 Transaction costs (a) 239 Adjusted operating income (loss) 57,141 17,207 (8,735) 65,613 Adjusted operating margin % 22.6 % 14.3 % Depreciation and amortization 11,604 Adjusted EBITDA 65,461 20,370 (8,614) 77,217 Adjusted EBITDA margin % 25.9 % 17.0 % (a) Transaction costs include advisory, legal, accounting, valuation, and other professional or consulting fees incurred during acquisitions and divestitures. These costs are included in Selling, general and administrative expense in the unaudited Condensed Consolidated Statements of Operations. (In thousands, except percentages) Americas International Corporate Consolidated Six Months Ended June 30, 2023 Net sales to external customers $ 588,645 $ 256,916 $ — $ 845,561 Operating income 34,947 Restructuring charges (Note 3) 5,097 Currency exchange losses, net 7,285 Loss on divestiture of MSA LLC (Note 17) 129,211 Product liability expense (Note 17) 3 Amortization of acquisition-related intangible assets 4,620 Adjusted operating income (loss) 166,510 37,522 (22,869) 181,163 Adjusted operating margin % 28.3 % 14.6 % Depreciation and amortization 24,841 Adjusted EBITDA 184,471 44,007 (22,474) 206,004 Adjusted EBITDA margin % 31.3 % 17.1 % Six Months Ended June 30, 2022 Net sales to external customers $ 478,034 $ 224,971 $ — $ 703,005 Operating income 104,204 Restructuring charges (Note 3) 2,247 Currency exchange losses, net 1,809 Product liability expense (Note 17) 5,698 Amortization of acquisition-related intangible assets 4,667 Transaction costs (a) 832 Adjusted operating income (loss) 109,577 26,196 (16,316) 119,457 Adjusted operating margin % 22.9 % 11.6 % Depreciation and amortization 23,420 Adjusted EBITDA 126,256 32,698 (16,077) 142,877 Adjusted EBITDA margin % 26.4 % 14.5 % (a) Transaction costs include advisory, legal, accounting, valuation, and other professional or consulting fees incurred during acquisitions and divestitures. These costs are included in Selling, general and administrative expense in the unaudited Condensed Consolidated Statements of Operations.
Percentage of Total Sales by Product Group	Total sales by product group was as follows: Three Months Ended June 30, 2023 Consolidated Americas International (In thousands, except percentages) Dollars Percent Dollars Percent Dollars Percent Fixed Gas & Flame Detection $ 105,855 24% $ 66,387 22% $ 39,468 29% Breathing Apparatus 101,231 23% 69,268 22% 31,963 23% Firefighter Helmets & Protective Apparel 65,259 15% 51,889 17% 13,370 10% Portable Gas Detection 52,387 12% 37,987 12% 14,400 10% Industrial Head Protection 47,164 10% 36,092 12% 11,072 8% Fall Protection 33,882 7% 22,475 7% 11,407 8% Other 41,521 9% 24,280 8% 17,241 12% Total $ 447,299 100% $ 308,378 100% $ 138,921 100% Three Months Ended June 30, 2022 Consolidated Americas International (In thousands, except percentages) Dollars Percent Dollars Percent Dollars Percent Fixed Gas & Flame Detection $ 80,498 22% $ 50,514 20% $ 29,984 25% Breathing Apparatus 91,950 25% 64,610 26% 27,340 23% Firefighter Helmets & Protective Apparel 47,899 13% 35,037 14% 12,862 11% Portable Gas Detection 44,892 12% 31,665 13% 13,227 11% Industrial Head Protection 43,724 12% 34,023 13% 9,701 8% Fall Protection 26,614 7% 17,005 7% 9,609 8% Other 36,736 9% 19,532 7% 17,204 14% Total $ 372,313 100% $ 252,386 100% $ 119,927 100% Six Months Ended June 30, 2023 Consolidated Americas International (In thousands, except percentages) Dollars Percent Dollars Percent Dollars Percent Fixed Gas & Flame Detection $ 199,490 24% $ 127,530 22% $ 71,960 28% Breathing Apparatus 177,952 21% 122,037 21% 55,915 22% Firefighter Helmets & Protective Apparel 127,926 15% 101,176 17% 26,750 10% Portable Gas Detection 105,353 12% 76,155 13% 29,198 11% Industrial Head Protection 90,071 11% 69,717 12% 20,354 8% Fall Protection 65,039 8% 42,933 7% 22,106 9% Other 79,730 9% 49,097 8% 30,633 12% Total $ 845,561 100% $ 588,645 100% $ 256,916 100% Six Months Ended June 30, 2022 Consolidated Americas International (In thousands, except percentages) Dollars Percent Dollars Percent Dollars Percent Fixed Gas & Flame Detection $ 163,575 23% $ 105,135 22% $ 58,440 26% Breathing Apparatus 162,901 23% 115,008 24% 47,893 21% Firefighter Helmets & Protective Apparel 96,360 14% 68,513 14% 27,847 12% Portable Gas Detection 81,635 12% 57,456 12% 24,179 11% Industrial Head Protection 79,881 11% 62,188 13% 17,693 8% Fall Protection 51,275 7% 33,282 7% 17,993 8% Other 67,378 10% 36,452 8% 30,926 14% Total $ 703,005 100% $ 478,034 100% $ 224,971 100%

Earnings per Share (Tables)

Earnings per Share (Tables)	6 Months Ended
	Jun. 30, 2023
Earnings Per Share [Abstract]
Schedule of Earnings Per Share	Three Months Ended June 30, Six Months Ended June 30, (In thousands, except per share values) 2023 2022 2023 2022 Net income (loss) $ 67,090 $ 47,693 $ (83,083) $ 83,235 Preferred stock dividends (10) (10) (20) (20) Net income (loss) attributable to common equity 67,080 47,683 (83,103) 83,215 Dividends and undistributed earnings allocated to participating securities (8) (8) (8) (13) Net income (loss) attributable to common shareholders 67,072 47,675 (83,111) 83,202 Basic weighted-average shares outstanding 39,274 39,266 39,249 39,279 Stock-based compensation awards (a) 135 155 — 193 Diluted weighted-average shares outstanding 39,409 39,421 39,249 39,472 Antidilutive shares — — 158 — Earnings (loss) per share: Basic $ 1.71 $ 1.21 $ (2.12) $ 2.12 Diluted $ 1.70 $ 1.21 $ (2.12) $ 2.11 (a) During periods in which the Company incurs a net loss, stock-based compensation awards are excluded from the computation of diluted earnings per share because their effect would be anti-dilutive. As such, during periods in which the Company incurs a net loss, diluted weighted average shares outstanding are equivalent to basic weighted average shares outstanding.

Stock Plans (Tables)

Stock Plans (Tables)	6 Months Ended
	Jun. 30, 2023
Share-Based Payment Arrangement [Abstract]
Schedule of Stock Compensation Expense	Stock compensation expense, included in Selling, general and administrative expense in the unaudited Condensed Consolidated Statements of Operations, is as follows: Three Months Ended June 30, Six Months Ended June 30, (In thousands) 2023 2022 2023 2022 Stock compensation expense $ 6,759 $ 4,629 $ 13,029 $ 8,358 Income tax benefit 1,656 1,134 3,192 2,048 Stock compensation expense, net of tax $ 5,103 $ 3,495 $ 9,837 $ 6,310
Summary of Stock Option Activity	A summary of stock option activity for the six months ended June 30, 2023, is as follows: Shares Weighted Average Outstanding at January 1, 2023 58,156 $ 46.48 Exercised (11,533) 46.99 Outstanding and exercisable at June 30, 2023 46,623 $ 46.35
Summary of Restricted Stock and Unit Activity	A summary of restricted stock activity for the six months ended June 30, 2023, is as follows: Shares Weighted Average Unvested at January 1, 2023 145,886 $ 137.36 Granted 68,996 137.31 Vested (38,950) 124.37 Forfeited (4,343) 138.89 Unvested at June 30, 2023 171,589 $ 140.45
Schedule of Fair Value Assumptions for Units	The following weighted average assumptions were used in estimating the fair value of the performance stock units granted for the six months ended June 30, 2023. Fair value per unit $131.46 Risk-free interest rate 4.4% Expected dividend yield 1.43% Expected volatility 36.7% MSA stock beta 0.739
Summary of Performance Stock Unit Activity	A summary of performance stock unit activity for the six months ended June 30, 2023, is as follows: Shares Weighted Average Unvested at January 1, 2023 178,760 $ 146.28 Granted 76,285 129.98 Performance adjustments (a) (3,009) 127.40 Vested (53,407) 127.36 Forfeited (2,306) 139.97 Unvested at June 30, 2023 196,323 $ 146.04 (a) Performance adjustments relate primarily to the final number of shares issued for the 2020 performance unit awards which vested in the first quarter of 2023 at 94.9% of the target award based on both cumulative performance against EBITDA margin and revenue growth targets and MSA's TSR during the three

Long-Term Debt (Tables)

Long-Term Debt (Tables)	6 Months Ended
	Jun. 30, 2023
Debt Disclosure [Abstract]
Schedule of Debt	(In thousands) June 30, 2023 December 31, 2022 2016 Senior Notes payable through 2031, 3.40%, net of debt issuance costs $ 61,832 $ 66,379 2021 Senior Notes payable through 2036, 2.69%, net of debt issuance costs 99,722 99,711 2021 Senior Notes payable through 2036, 2.69%, net of debt issuance costs 99,722 99,711 2023 Term Loan credit agreement maturing in 2026, net of debt issuance costs 242,971 — 2023 Senior Notes payable through 2028, 5.25%, net of debt issuance costs 49,950 — Senior revolving credit facility maturing in 2026, net of debt issuance costs 259,822 307,031 Total 814,019 572,832 Amounts due within one year 26,492 7,387 Long-term debt, net of debt issuance costs $ 787,527 $ 565,445

Goodwill and Intangible Assets

Goodwill and Intangible Assets (Tables)	6 Months Ended
	Jun. 30, 2023
Goodwill and Intangible Assets Disclosure [Abstract]
Changes in Goodwill	Changes in goodwill during the six months ended June 30, 2023, were as follows: (In thousands) Goodwill Balance at January 1, 2023 $ 620,622 Currency translation 5,640 Balance at June 30, 2023 $ 626,262
Changes in Intangible Assets, Net of Accumulated Amortization	Changes in intangible assets, net, during the six months ended June 30, 2023, were as follows: (In thousands) Intangible Assets Net balance at January 1, 2023 $ 281,853 Amortization expense (9,018) Currency translation 2,470 Net balance at June 30, 2023 $ 275,305

Pensions and Other Post-retir_2

Pensions and Other Post-retirement Benefits (Tables)	6 Months Ended
	Jun. 30, 2023
Retirement Benefits [Abstract]
Components of Net Periodic Benefit Cost	Components of net periodic benefit (income) cost consisted of the following: Pension Benefits Other Benefits (In thousands) 2023 2022 2023 2022 Three Months Ended June 30, Service cost $ 1,884 $ 3,099 $ 53 $ 82 Interest cost 5,918 3,613 273 148 Expected return on plan assets (9,906) (12,418) — — Amortization of prior service cost (credit) 37 36 (61) (84) Recognized net actuarial losses 47 3,018 138 310 Net periodic benefit (income) cost (a) $ (2,020) $ (2,652) $ 403 $ 456 Six Months Ended June 30, Service cost $ 3,768 $ 6,198 $ 106 $ 164 Interest cost 11,836 7,226 546 296 Expected return on plan assets (19,812) (24,836) — — Amortization of prior service cost (credit) 74 72 (122) (168) Recognized net actuarial losses 94 6,036 276 620 Net periodic benefit (income) cost (a) $ (4,040) $ (5,304) $ 806 $ 912 (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 unaudited Condensed Consolidated Statements of Operations.

Derivative Financial Instrume_2

Derivative Financial Instruments (Tables)	6 Months Ended
	Jun. 30, 2023
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Balance Sheet Location and Fair Value of Assets Associated with Derivative Financial Instruments	The following table presents the unaudited Condensed Consolidated Balance Sheets location and fair value of assets and liabilities associated with derivative financial instruments: (In thousands) June 30, 2023 December 31, 2022 Derivatives not designated as hedging instruments: Foreign exchange contracts: prepaid expenses and other current assets $ 31 $ 724 Foreign exchange contracts: accrued restructuring and other current liabilities 488 85
Income Statement Location and Impact of Derivative Financial Instruments	The following table presents the unaudited Condensed Consolidated Statements of Operations and unaudited Condensed Consolidated Statements of Cash Flows location and the (gain) loss impact of derivative financial instruments: Six Months Ended June 30, (In thousands) 2023 2022 Derivatives not designated as hedging instruments: Foreign exchange contracts: currency exchange losses, net $ 123 $ 8,449

Contingencies (Tables)

Contingencies (Tables)	6 Months Ended
	Jun. 30, 2023
Commitments and Contingencies Disclosure [Abstract]
Disposal Groups, Including Discontinued Operations	Below is a summary of the impact of the divestiture of MSA LLC on our unaudited Condensed Consolidated Statements of Operations for the quarter ended March 31, 2023 (no additional impact for the quarter ended June 30, 2023): (In millions) Three Months Ended March 31, 2023 Cash and cash equivalents $ (341.2) Current insurance receivables (17.3) Notes receivable, insurance companies (5.9) Noncurrent insurance receivables (110.3) Notes receivable, insurance companies, noncurrent (38.7) Current product liability 65.1 Noncurrent product liability 324.7 Loss on divestiture of MSA LLC before transaction costs (123.6) Transaction costs (5.6) Loss on divestiture of MSA LLC (129.2) Income tax expense (a) (70.4) Tax-effected loss on divestiture of MSA LLC $ (199.6) (a) Related to the write-off of deferred tax asset related to product liability reserve
Summary of Insurance Receivable Balances and Activity Related to Cumulative Trauma Product Liability Losses	A summary of insurance receivables balance and activity related to cumulative trauma product liability losses and divestiture of MSA LLC is as follows: (In millions) Six Months Ended June 30, 2023 Year Ended Balance beginning of period $ 127.6 $ 130.2 Divestiture of MSA LLC (127.6) — Additions — 1.8 Collections and other adjustments — (4.4) Balance end of period $ — $ 127.6
Schedule of Notes Receivable Balances from Insurance Companies	A summary of notes receivables from insurance companies balance is as follows: (In millions) Six Months Ended June 30, 2023 Year Ended Balance beginning of period $ 44.6 $ 48.5 Divestiture of MSA LLC (44.6) — Additions — 1.2 Collections — (5.1) Balance end of period $ — $ 44.6
Schedule of Product Warranty Liability	The following table reconciles changes in the Company's accrued warranty reserve: (In thousands) Six Months Ended June 30, 2023 Year Ended Beginning warranty reserve $ 15,230 $ 12,423 Warranty payments (4,790) (10,631) Warranty claims 4,914 14,544 Provision for product warranties and other adjustments (252) (1,106) Ending warranty reserve $ 15,102 $ 15,230

Cash and Cash Equivalents (Deta

Cash and Cash Equivalents (Details) $ in Thousands	Jun. 30, 2023 USD ($)
Cash and Cash Equivalents [Abstract]
Gross cash pool position	$ 84,369
Less: cash pool borrowings	(82,278)
Net cash pool position	$ 2,091

Restructuring Charges - Additio

Restructuring Charges - Additional Information (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Restructuring Cost and Reserve [Line Items]
Restructuring charges	$ 3,350	$ 57	$ 5,097	$ 2,247
Americas
Restructuring Cost and Reserve [Line Items]
Restructuring charges			2,200	300
International
Restructuring Cost and Reserve [Line Items]
Restructuring charges			$ 1,500	$ 2,100

Restructuring Charges - Activit

Restructuring Charges - Activity and Reserve Balance for Restructuring Charges by Segment (Details) - USD ($) $ in Millions	6 Months Ended	12 Months Ended
	Jun. 30, 2023	Dec. 31, 2022
Restructuring Reserve [Roll Forward]
Restructuring reserve, beginning balance	$ 15	$ 21
Restructuring charges		8
Restructuring charges	5.1
Currency translation	0.1	(1.2)
Cash payments	(8.2)	(12.8)
Restructuring reserve, ending balance	12	15
Corporate
Restructuring Reserve [Roll Forward]
Restructuring reserve, beginning balance	0.5	0.3
Restructuring charges		0.6
Restructuring charges	1.4
Currency translation	0	0
Cash payments	(1.2)	(0.4)
Restructuring reserve, ending balance	0.7	0.5
Americas
Restructuring Reserve [Roll Forward]
Restructuring reserve, beginning balance	1.7	3.3
Restructuring charges		2.3
Restructuring charges	2.2
Currency translation	0	0.1
Cash payments	(2.9)	(4)
Restructuring reserve, ending balance	1	1.7
International
Restructuring Reserve [Roll Forward]
Restructuring reserve, beginning balance	12.8	17.4
Restructuring charges		5.1
Restructuring charges	1.5
Currency translation	0.1	(1.3)
Cash payments	(4.1)	(8.4)
Restructuring reserve, ending balance	$ 10.3	$ 12.8

Inventories - Schedule of Inven

Inventories - Schedule of Inventories (Details) - USD ($) $ in Thousands	Jun. 30, 2023	Dec. 31, 2022
Inventory Disclosure [Abstract]
Finished products	$ 100,992	$ 97,142
Work in process	23,400	16,360
Raw materials and supplies	213,562	224,814
Total inventories	$ 337,954	$ 338,316

Property, Plant and Equipment_2

Property, Plant and Equipment (Details) - USD ($) $ in Thousands	Jun. 30, 2023	Dec. 31, 2022
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	$ 644,898	$ 631,993
Less: accumulated depreciation	(438,832)	(424,441)
Property, plant and equipment, net	206,066	207,552
Land
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	4,321	4,884
Buildings
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	138,194	138,618
Machinery and equipment
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	480,637	466,394
Construction in progress
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	$ 21,746	$ 22,097

Reclassifications Out of Accu_3

Reclassifications Out of Accumulated Other Comprehensive Loss (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Balance at beginning of period			$ 923,741
Other comprehensive income (loss)	$ 5,154	$ (29,285)	16,789	$ (21,138)
Balance at end of period	831,131		831,131
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	(49,896)	(55,032)	(50,335)	(57,296)
Tax (benefit) expense	(46)	(950)	232	(1,966)
Reclassification from accumulated other comprehensive loss into net income	115	2,330	554	4,594
Balance at end of period	(49,781)	(52,702)	(49,781)	(52,702)
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	(24)	(48)	(48)	(96)
Accumulated defined benefit plans adjustment, net gain (loss) attributable to parent
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Amounts reclassified from accumulated other comprehensive loss	185	3,328	370	6,656
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	0	(14)	(2)	(5)
Other comprehensive income (loss)	0	(9)	2	(18)
Balance at end of period	0	(23)	0	(23)
Accumulated foreign currency adjustment attributable to parent
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Balance at beginning of period	(97,186)	(85,947)	(108,380)	(91,839)
Other comprehensive income (loss)	5,039	(31,606)	16,233	(25,714)
Balance at end of period	$ (92,147)	$ (117,553)	$ (92,147)	$ (117,553)

Capital Stock - Narrative (Deta

Capital Stock - Narrative (Details) - USD ($)	6 Months Ended		12 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Dec. 31, 2022
Capital Unit [Line Items]
Preferred stock, par value (dollars per share)	$ 50,000		$ 50,000
Cumulative preferred stock (percent)	4.50%		4.50%
Treasury shares, at cost	$ 363,624,000		$ 361,438,000
Common stock, shares authorized (shares)	180,000,000
Common stock, par value (dollars per share)	$ 0
Common stock, shares, outstanding (shares)	39,290,833		39,213,064
Treasury stock, common, shares (shares)	22,790,558		22,868,327
Preferred stock
Capital Unit [Line Items]
Treasury shares, at cost	$ 1,800,000
Cumulative Preferred Stock
Capital Unit [Line Items]
Preferred stock, shares authorized (shares)	100,000
Preferred stock, par value (dollars per share)	$ 50
Cumulative preferred stock (percent)	4.50%
Preferred stock, callable price per share (dollars per share)	$ 52.50
Preferred stock, shares issued (shares)	71,340
Treasury stock, preferred, shares (shares)	52,998
Purchase of treasury shares (shares)	0
Second Cumulative Preferred Voting Stock
Capital Unit [Line Items]
Preferred stock, shares authorized (shares)	1,000,000
Preferred stock, par value (dollars per share)	$ 10
Preferred stock, shares issued (shares)	0
Common Stock
Capital Unit [Line Items]
Purchase of treasury shares (shares)	0	231,835
Common stock, shares issued (shares)			62,081,391
Stock issued during period, new issues (shares)	0	0
Common stock, value, issued (up to)	$ 100,000,000
Treasury stock
Capital Unit [Line Items]
Reissued shares (shares)	105,894	110,696

Capital Stock - Schedule of Com

Capital Stock - Schedule of Common Stock Activity (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Common Stock
Common Stock Activity [Roll Forward]
Beginning balance	$ 287,009	$ 262,627	$ 281,980	$ 260,121
Stock compensation expense	6,759	4,629	13,029	8,358
Ending balance	294,364	267,645	294,364	267,645
Treasury Cost
Common Stock Activity [Roll Forward]
Beginning balance	(362,280)	(331,160)	(359,838)	(328,776)
Stock compensation expense	0	0	0	0
Ending balance	(362,025)	(359,314)	(362,025)	(359,314)
Restricted and performance stock awards | Common Stock
Common Stock Activity [Roll Forward]
Restricted and performance stock awards	(190)	(201)	(1,434)	(1,461)
Restricted and performance stock awards | Treasury Cost
Common Stock Activity [Roll Forward]
Restricted and performance stock awards	190	201	1,434	1,461
Stock options exercised | Common Stock
Common Stock Activity [Roll Forward]
Stock compensation expense	354	166	357	203
Stock options exercised | Treasury Cost
Common Stock Activity [Roll Forward]
Stock compensation expense	184	80	185	95
Treasury shares purchased for stock compensation programs | Common Stock
Common Stock Activity [Roll Forward]
Treasury shares purchased for stock compensation programs	0	0	0	0
Treasury shares purchased for stock compensation programs | Treasury Cost
Common Stock Activity [Roll Forward]
Treasury shares purchased for stock compensation programs	(184)	(272)	(3,871)	(3,931)
Employee stock purchase program | Common Stock
Common Stock Activity [Roll Forward]
Stock compensation expense	432	424	432	424
Employee stock purchase program | Treasury Cost
Common Stock Activity [Roll Forward]
Stock compensation expense	65	62	65	62
Share repurchase program | Common Stock
Common Stock Activity [Roll Forward]
Stock compensation expense	0	0	0	0
Share repurchase program | Treasury Cost
Common Stock Activity [Roll Forward]
Stock compensation expense	$ 0	$ (28,225)	$ 0	$ (28,225)

Segment Information - Additiona

Segment Information - Additional Information (Details)	6 Months Ended
	Jun. 30, 2023 Segment
Segment Reporting [Abstract]
Number of geographical segments (in segments)	4
Number of reportable segments (in segments)	3

Segment Information - Schedule

Segment Information - Schedule of Reportable Segment Information (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Segment Reporting Information [Line Items]
Net sales to external customers	$ 447,299	$ 372,313	$ 845,561	$ 703,005
Operating income	95,008	61,536	34,947	104,204
Restructuring charges	3,350	57	5,097	2,247
Currency exchange gains (losses), net	3,110	(1,463)	7,285	1,809
Loss on divestiture of MSA LLC	0	0	129,211	0
Product liability expense		2,926	3	5,698
Amortization of acquisition-related intangible assets	2,315	2,318	4,620	4,667
Acquisition related costs		239		832
Adjusted operating income (loss)	103,783	65,613	181,163	119,457
Depreciation and amortization	12,574	11,604	24,841	23,420
Adjusted EBITDA	116,357	77,217	206,004	142,877
Americas
Segment Reporting Information [Line Items]
Net sales to external customers	308,378	252,386	588,645	478,034
Restructuring charges			2,200	300
Reportable Segments | Americas
Segment Reporting Information [Line Items]
Net sales to external customers	308,378	252,386	588,645	478,034
Adjusted operating income (loss)	$ 94,816	$ 57,141	$ 166,510	$ 109,577
Adjusted operating margin, percentage	30.70%	22.60%	28.30%	22.90%
Adjusted EBITDA	$ 103,977	$ 65,461	$ 184,471	$ 126,256
Adjusted EBITDA, percentage	33.70%	25.90%	31.30%	26.40%
Reportable Segments | International
Segment Reporting Information [Line Items]
Net sales to external customers	$ 138,921	$ 119,927	$ 256,916	$ 224,971
Adjusted operating income (loss)	$ 21,743	$ 17,207	$ 37,522	$ 26,196
Adjusted operating margin, percentage	15.70%	14.30%	14.60%	11.60%
Adjusted EBITDA	$ 24,949	$ 20,370	$ 44,007	$ 32,698
Adjusted EBITDA, percentage	18%	17%	17.10%	14.50%
Corporate
Segment Reporting Information [Line Items]
Net sales to external customers	$ 0	$ 0	$ 0	$ 0
Adjusted operating income (loss)	(12,776)	(8,735)	(22,869)	(16,316)
Adjusted EBITDA	$ (12,569)	$ (8,614)	$ (22,474)	$ (16,077)

Segment Information - Percentag

Segment Information - Percentage of Total Sales by Product Group (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Revenue from External Customer [Line Items]
Revenues	$ 447,299	$ 372,313	$ 845,561	$ 703,005
Breathing Apparatus
Revenue from External Customer [Line Items]
Revenues	101,231	91,950	177,952	162,901
Fixed Gas & Flame Detection
Revenue from External Customer [Line Items]
Revenues	105,855	80,498	199,490	163,575
Firefighter Helmets & Protective Apparel
Revenue from External Customer [Line Items]
Revenues	65,259	47,899	127,926	96,360
Portable Gas Detection
Revenue from External Customer [Line Items]
Revenues	52,387	44,892	105,353	81,635
Industrial Head Protection
Revenue from External Customer [Line Items]
Revenues	47,164	43,724	90,071	79,881
Fall Protection
Revenue from External Customer [Line Items]
Revenues	33,882	26,614	65,039	51,275
Other
Revenue from External Customer [Line Items]
Revenues	$ 41,521	$ 36,736	$ 79,730	$ 67,378
Revenue Benchmark | Product Concentration Risk
Revenue from External Customer [Line Items]
Concentration risk percentage	100%	100%	100%	100%
Revenue Benchmark | Breathing Apparatus | Product Concentration Risk
Revenue from External Customer [Line Items]
Concentration risk percentage	23%	25%	21%	23%
Revenue Benchmark | Fixed Gas & Flame Detection | Product Concentration Risk
Revenue from External Customer [Line Items]
Concentration risk percentage	24%	22%	24%	23%
Revenue Benchmark | Firefighter Helmets & Protective Apparel | Product Concentration Risk
Revenue from External Customer [Line Items]
Concentration risk percentage	15%	13%	15%	14%
Revenue Benchmark | Portable Gas Detection | Product Concentration Risk
Revenue from External Customer [Line Items]
Concentration risk percentage	12%	12%	12%	12%
Revenue Benchmark | Industrial Head Protection | Product Concentration Risk
Revenue from External Customer [Line Items]
Concentration risk percentage	10%	12%	11%	11%
Revenue Benchmark | Fall Protection | Product Concentration Risk
Revenue from External Customer [Line Items]
Concentration risk percentage	7%	7%	8%	7%
Revenue Benchmark | Other | Product Concentration Risk
Revenue from External Customer [Line Items]
Concentration risk percentage	9%	9%	9%	10%
Americas
Revenue from External Customer [Line Items]
Revenues	$ 308,378	$ 252,386	$ 588,645	$ 478,034
Americas | Breathing Apparatus
Revenue from External Customer [Line Items]
Revenues	69,268	64,610	122,037	115,008
Americas | Fixed Gas & Flame Detection
Revenue from External Customer [Line Items]
Revenues	66,387	50,514	127,530	105,135
Americas | Firefighter Helmets & Protective Apparel
Revenue from External Customer [Line Items]
Revenues	51,889	35,037	101,176	68,513
Americas | Portable Gas Detection
Revenue from External Customer [Line Items]
Revenues	37,987	31,665	76,155	57,456
Americas | Industrial Head Protection
Revenue from External Customer [Line Items]
Revenues	36,092	34,023	69,717	62,188
Americas | Fall Protection
Revenue from External Customer [Line Items]
Revenues	22,475	17,005	42,933	33,282
Americas | Other
Revenue from External Customer [Line Items]
Revenues	$ 24,280	$ 19,532	$ 49,097	$ 36,452
Americas | Revenue Benchmark | Product Concentration Risk
Revenue from External Customer [Line Items]
Concentration risk percentage	100%	100%	100%	100%
Americas | Revenue Benchmark | Breathing Apparatus | Product Concentration Risk
Revenue from External Customer [Line Items]
Concentration risk percentage	22%	26%	21%	24%
Americas | Revenue Benchmark | Fixed Gas & Flame Detection | Product Concentration Risk
Revenue from External Customer [Line Items]
Concentration risk percentage	22%	20%	22%	22%
Americas | Revenue Benchmark | Firefighter Helmets & Protective Apparel | Product Concentration Risk
Revenue from External Customer [Line Items]
Concentration risk percentage	17%	14%	17%	14%
Americas | Revenue Benchmark | Portable Gas Detection | Product Concentration Risk
Revenue from External Customer [Line Items]
Concentration risk percentage	12%	13%	13%	12%
Americas | Revenue Benchmark | Industrial Head Protection | Product Concentration Risk
Revenue from External Customer [Line Items]
Concentration risk percentage	12%	13%	12%	13%
Americas | Revenue Benchmark | Fall Protection | Product Concentration Risk
Revenue from External Customer [Line Items]
Concentration risk percentage	7%	7%	7%	7%
Americas | Revenue Benchmark | Other | Product Concentration Risk
Revenue from External Customer [Line Items]
Concentration risk percentage	8%	7%	8%	8%
International
Revenue from External Customer [Line Items]
Revenues	$ 138,921	$ 119,927	$ 256,916	$ 224,971
International | Breathing Apparatus
Revenue from External Customer [Line Items]
Revenues	31,963	27,340	55,915	47,893
International | Fixed Gas & Flame Detection
Revenue from External Customer [Line Items]
Revenues	39,468	29,984	71,960	58,440
International | Firefighter Helmets & Protective Apparel
Revenue from External Customer [Line Items]
Revenues	13,370	12,862	26,750	27,847
International | Portable Gas Detection
Revenue from External Customer [Line Items]
Revenues	14,400	13,227	29,198	24,179
International | Industrial Head Protection
Revenue from External Customer [Line Items]
Revenues	11,072	9,701	20,354	17,693
International | Fall Protection
Revenue from External Customer [Line Items]
Revenues	11,407	9,609	22,106	17,993
International | Other
Revenue from External Customer [Line Items]
Revenues	$ 17,241	$ 17,204	$ 30,633	$ 30,926
International | Revenue Benchmark | Product Concentration Risk
Revenue from External Customer [Line Items]
Concentration risk percentage	100%	100%	100%	100%
International | Revenue Benchmark | Breathing Apparatus | Product Concentration Risk
Revenue from External Customer [Line Items]
Concentration risk percentage	23%	23%	22%	21%
International | Revenue Benchmark | Fixed Gas & Flame Detection | Product Concentration Risk
Revenue from External Customer [Line Items]
Concentration risk percentage	29%	25%	28%	26%
International | Revenue Benchmark | Firefighter Helmets & Protective Apparel | Product Concentration Risk
Revenue from External Customer [Line Items]
Concentration risk percentage	10%	11%	10%	12%
International | Revenue Benchmark | Portable Gas Detection | Product Concentration Risk
Revenue from External Customer [Line Items]
Concentration risk percentage	10%	11%	11%	11%
International | Revenue Benchmark | Industrial Head Protection | Product Concentration Risk
Revenue from External Customer [Line Items]
Concentration risk percentage	8%	8%	8%	8%
International | Revenue Benchmark | Fall Protection | Product Concentration Risk
Revenue from External Customer [Line Items]
Concentration risk percentage	8%	8%	9%	8%
International | Revenue Benchmark | Other | Product Concentration Risk
Revenue from External Customer [Line Items]
Concentration risk percentage	12%	14%	12%	14%

Earnings per Share (Details)

Earnings per Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Earnings Per Share [Abstract]
Net income (loss)	$ 67,090	$ 47,693	$ (83,083)	$ 83,235
Preferred stock dividends	(10)	(10)	(20)	(20)
Net income (loss) attributable to common equity	67,080	47,683	(83,103)	83,215
Dividends and undistributed earnings allocated to participating securities	(8)	(8)	(8)	(13)
Net income (loss) attributable to common shareholders	$ 67,072	$ 47,675	$ (83,111)	$ 83,202
Basic weighted-average shares outstanding (shares)	39,274	39,266	39,249	39,279
Stock-based compensation awards (shares)	135	155	0	193
Diluted weighted-average shares outstanding (shares)	39,409	39,421	39,249	39,472
Antidilutive stock options (shares)	0	0	158	0
Earnings (loss) per share:
Basic (in dollars per share)	$ 1.71	$ 1.21	$ (2.12)	$ 2.12
Diluted (in dollars per share)	$ 1.70	$ 1.21	$ (2.12)	$ 2.11

Income Taxes (Details)

Income Taxes (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022	Dec. 31, 2022
Income Tax Contingency [Line Items]
Effective income tax rate	23.30%	24.70%	520.80%	23.50%
Unrecognized tax benefits	$ 3,400		$ 3,400
Insurance receivable and other noncurrent assets	23,769		23,769		$ 136,853
Accrued interest and penalties related to uncertain tax positions	300		300
Deferred tax asset
Income Tax Contingency [Line Items]
Insurance receivable and other noncurrent assets	$ 1,800		$ 1,800

Stock Plans - Schedule of Stock

Stock Plans - Schedule of Stock Compensation Expense (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Share-Based Payment Arrangement [Abstract]
Stock compensation expense	$ 6,759	$ 4,629	$ 13,029	$ 8,358
Income tax benefit	1,656	1,134	3,192	2,048
Stock compensation expense, net of tax	$ 5,103	$ 3,495	$ 9,837	$ 6,310

Stock Plans - Summary of Stock

Stock Plans - Summary of Stock Option Activity (Details)	6 Months Ended
	Jun. 30, 2023 $ / shares shares
Shares
Outstanding, beginning balance (in shares) | shares	58,156
Exercised (in shares) | shares	(11,533)
Outstanding, ending balance (in shares) | shares	46,623
Exercisable (in shares) | shares	46,623
Weighted Average Grant Date Fair Value
Outstanding, beginning balance (dollars per share) | $ / shares	$ 46.48
Exercised (dollars per share) | $ / shares	46.99
Outstanding, ending balance (dollars per share) | $ / shares	46.35
Exercisable (dollars per share) | $ / shares	$ 46.35

Stock Plans - Summary of Restri

Stock Plans - Summary of Restricted Stock and Unit Activity (Details) - Restricted Stock Activity	6 Months Ended
	Jun. 30, 2023 $ / shares shares
Shares
Unvested, beginning balance (in shares) | shares	145,886
Granted (in shares) | shares	68,996
Vested (in shares) | shares	(38,950)
Forfeited (in shares) | shares	(4,343)
Unvested, ending balance (in shares) | shares	171,589
Weighted Average Grant Date Fair Value
Unvested, beginning balance (dollars per share) | $ / shares	$ 137.36
Granted (dollars per share) | $ / shares	137.31
Vested (dollars per share) | $ / shares	124.37
Forfeited (dollars per share) | $ / shares	138.89
Unvested, ending Balance (dollars per share) | $ / shares	$ 140.45

Stock Plans - Additional Inform

Stock Plans - Additional Information (Details)	6 Months Ended
	Jun. 30, 2023
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	200%
Performance Shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Fair value assumptions, average closing price used to calculate expected dividend rate, period (years)	1 year
Stock beta, daily price data period (years)	3 years

Stock Plans - Weighted Average

Stock Plans - Weighted Average Risk Assumptions (Details) - Performance Stock Unit	6 Months Ended
	Jun. 30, 2023 $ / shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Fair value per unit (dollars per share)	$ 129.98
Monte Carlo Approach
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Fair value per unit (dollars per share)	$ 131.46
Risk-free interest rate	4.40%
Expected dividend yield	1.43%
Expected volatility	36.70%
MSA stock beta	0.739

Stock Plans - Summary of Perfor

Stock Plans - Summary of Performance Stock Unit Activity (Details)	6 Months Ended
	Jun. 30, 2023 $ / shares shares
Weighted Average Grant Date Fair Value
Percentage of target award based on achieving specified performance targets	94.90%
Performance Stock Unit
Shares
Unvested, beginning balance (in shares) | shares	178,760
Granted (in shares) | shares	76,285
Performance adjustments (in shares) | shares	(3,009)
Vested (in shares) | shares	(53,407)
Forfeited (in shares) | shares	(2,306)
Unvested, ending balance (in shares) | shares	196,323
Weighted Average Grant Date Fair Value
Unvested, beginning balance (dollars per share) | $ / shares	$ 146.28
Granted (dollars per share) | $ / shares	129.98
Performance adjustments (dollars per share) | $ / shares	127.40
Vested (dollars per share) | $ / shares	127.36
Forfeited (dollars per share) | $ / shares	139.97
Unvested, ending Balance (dollars per share) | $ / shares	$ 146.04
Award vesting period	3 years

Long-Term Debt - Schedule of De

Long-Term Debt - Schedule of Debt (Details) - USD ($) $ in Thousands	Jun. 30, 2023	Jun. 29, 2023	Jan. 05, 2023	Dec. 31, 2022	Jul. 01, 2021
Debt Instrument [Line Items]
Senior revolving credit facility maturing in 2026, net of debt issuance costs	$ 259,822			$ 307,031
Total	814,019			572,832
Amounts due within one year	26,492			7,387
Long-term debt, net of debt issuance costs	$ 787,527			565,445
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	$ 61,832			66,379
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	$ 99,722			99,711
2021 Senior Notes payable through 2036, 2.69%, net of debt issuance costs | Senior Notes
Debt Instrument [Line Items]
Debt instrument, stated interest rate percentage					2.69%
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	$ 99,722			99,711
2021 Senior Notes payable through 2036, 2.69%, net of debt issuance costs | Senior Notes
Debt Instrument [Line Items]
Debt instrument, stated interest rate percentage					2.69%
2023 Term Loan credit agreement maturing in 2026, net of debt issuance costs | Secured Debt | Line of Credit
Debt Instrument [Line Items]
Debt instrument, stated interest rate percentage	6.76%
Total	$ 242,971		$ 250,000	0
2023 Senior Notes payable through 2028, 5.25%, net of debt issuance costs | Senior Notes
Debt Instrument [Line Items]
Debt instrument, stated interest rate percentage	5.25%	5.25%
Total	$ 49,950			$ 0

Long-Term Debt - Additional Inf

Long-Term Debt - Additional Information (Details)					6 Months Ended
	Jun. 29, 2023 USD ($)	Jan. 05, 2023 USD ($)	May 24, 2021 USD ($)	Jan. 04, 2019	Jun. 30, 2023 GBP (£)	Jun. 30, 2023 USD ($)	Jun. 30, 2023 GBP (£)	Dec. 31, 2022 USD ($)	Jun. 30, 2022 USD ($)	Jul. 01, 2021 USD ($)
Debt Instrument [Line Items]
Line of credit facility, maximum borrowing capacity			$ 900,000,000
Weighted average revolving interest rate, percentage					6.14%
Line of credit facility, remaining borrowing capacity						$ 637,200,000
Line of credit facility, accordion feature						400,000,000
Amounts due within one year						26,492,000		$ 7,387,000
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
Long term debt						814,019,000		572,832,000
Restricted cash included in prepaid expenses and other current assets						1,980,000			$ 1,522,000
Standby Letters of Credit
Debt Instrument [Line Items]
Proceeds from lines of credit						9,800,000
Senior Revolving Credit Facility Maturing in 2023 | Standby Letters of Credit
Debt Instrument [Line Items]
Proceeds from lines of credit						$ 1,500,000
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 | Senior Notes Due 2028
Debt Instrument [Line Items]
Aggregate principal amount	$ 50,000,000
Debt instrument, stated interest rate percentage	5.25%					5.25%	5.25%
Principal of debt amount due in year before maturity	$ 25,000,000
Principal of debt amount due at maturity	$ 25,000,000
Long term debt						$ 49,950,000		0
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						$ 61,900,000	£ 48,800,000
Debt instrument, stated interest rate percentage						3.40%	3.40%
Amounts due within one year						$ 7,700,000	£ 6,100,000
Annual installment debt payments | £					£ 6,100,000
Line of Credit | 2023 Term Loan credit agreement maturing in 2026, net of debt issuance costs | Secured Debt
Debt Instrument [Line Items]
Debt instrument, stated interest rate percentage						6.76%	6.76%
Long term debt		$ 250,000,000				$ 242,971,000		$ 0
Base Rate | Senior Revolving Credit Facility Maturing in 2023
Debt Instrument [Line Items]
Interest rate margin, percentage			0%
Federal Funds Open Rate | Senior Revolving Credit Facility Maturing in 2023
Debt Instrument [Line Items]
Interest rate margin, percentage			0.50%
Overnight Bank Funding Rate | Senior Revolving Credit Facility Maturing in 2023
Debt Instrument [Line Items]
Interest rate margin, percentage			0.50%
London Interbank Offered Rate (LIBOR) | Senior Revolving Credit Facility Maturing in 2023
Debt Instrument [Line Items]
Interest rate margin, percentage			1%
Minimum | Senior Revolving Credit Facility Maturing in 2023
Debt Instrument [Line Items]
Interest rate margin, percentage			0%
Minimum | Line of Credit | 2023 Term Loan credit agreement maturing in 2026, net of debt issuance costs | Secured Debt
Debt Instrument [Line Items]
Basis spread on EBITDA leverage ratio and elected rate		0%
Maximum | Senior Revolving Credit Facility Maturing in 2023
Debt Instrument [Line Items]
Interest rate margin, percentage			1.75%
Maximum | Line of Credit | 2023 Term Loan credit agreement maturing in 2026, net of debt issuance costs | Secured Debt
Debt Instrument [Line Items]
Basis spread on EBITDA leverage ratio and elected rate		2%

Goodwill and Intangible Asset_2

Goodwill and Intangible Assets - Changes in Goodwill (Details) $ in Thousands	6 Months Ended
	Jun. 30, 2023 USD ($)
Goodwill [Roll Forward]
Beginning balance	$ 620,622
Currency translation	5,640
Ending balance	$ 626,262

Goodwill and Intangible Asset_3

Goodwill and Intangible Assets - Additional Information (Details) - USD ($) $ in Thousands	Jun. 30, 2023	Dec. 31, 2022
Acquired Finite-Lived Intangible Assets [Line Items]
Goodwill	$ 626,262	$ 620,622
Americas
Acquired Finite-Lived Intangible Assets [Line Items]
Goodwill	447,600
International
Acquired Finite-Lived Intangible Assets [Line Items]
Goodwill	178,700
Trade name | Globe Holding Company LLC
Acquired Finite-Lived Intangible Assets [Line Items]
Indefinite-lived intangible assets	$ 60,000

Goodwill and Intangible Asset_4

Goodwill and Intangible Assets - Changes in Intangible Assets, Net of Accumulated Amortization (Details) $ in Thousands	6 Months Ended
	Jun. 30, 2023 USD ($)
Finite-lived Intangible Assets [Roll Forward]
Beginning balance	$ 281,853
Amortization expense	(9,018)
Currency translation	2,470
Ending balance	$ 275,305

Pensions and Other Post-retir_3

Pensions and Other Post-retirement Benefits - Components of Net Periodic Benefit Cost (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Pension Benefits
Defined Benefit Plan Disclosure [Line Items]
Service cost	$ 1,884	$ 3,099	$ 3,768	$ 6,198
Interest cost	5,918	3,613	11,836	7,226
Expected return on plan assets	(9,906)	(12,418)	(19,812)	(24,836)
Amortization of prior service cost (credit)	37	36	74	72
Recognized net actuarial losses	47	3,018	94	6,036
Net periodic benefit (income) cost	(2,020)	(2,652)	(4,040)	(5,304)
Other Benefits
Defined Benefit Plan Disclosure [Line Items]
Service cost	53	82	106	164
Interest cost	273	148	546	296
Expected return on plan assets	0	0	0	0
Amortization of prior service cost (credit)	(61)	(84)	(122)	(168)
Recognized net actuarial losses	138	310	276	620
Net periodic benefit (income) cost	$ 403	$ 456	$ 806	$ 912

Pensions and Other Post-retir_4

Pensions and Other Post-retirement Benefits - Additional Information (Details) - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022
Retirement Benefits [Abstract]
Pension plans contributions	$ 4.1	$ 3.8
Total estimated pension plans contributions for the fiscal year	$ 8.2

Derivative Financial Instrume_3

Derivative Financial Instruments - Additional Information (Details) - USD ($) $ in Millions	Jun. 30, 2023	Dec. 31, 2022
Foreign Exchange Forward
Derivative [Line Items]
Notional amount of open forward contracts	$ 106.6	$ 103

Derivative Financial Instrume_4

Derivative Financial Instruments - Balance Sheet Location and Fair Value of Assets Associated with Derivative Financial Instruments (Details) - Not designated as hedging instrument - USD ($) $ in Thousands	Jun. 30, 2023	Dec. 31, 2022
Other current liabilities
Derivatives, Fair Value [Line Items]
Derivatives not designated as hedging instruments:	$ 488	$ 85
Prepaid expenses and other current assets
Derivatives, Fair Value [Line Items]
Foreign exchange contracts: accrued restructuring and other current liabilities	$ 31	$ 724

Derivative Financial Instrume_5

Derivative Financial Instruments - Income Statement Location and Impact of Derivative Financial Instruments (Details) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022
Not designated as hedging instrument
Derivative Instruments, Gain (Loss) [Line Items]
Foreign exchange contracts: currency exchange losses, net	$ 123	$ 8,449

Fair Value Measurements (Detail

Fair Value Measurements (Details) - USD ($)	3 Months Ended
	Mar. 31, 2023	Jun. 30, 2023	Dec. 31, 2022
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities, amortized cost basis			$ 9,900,000
investments, fair value			9,900,000
Gain (loss) on investment	$ 0
Reported Value Measurement
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Long-term debt, fair value disclosure		$ 311,900,000	266,500,000
Estimate of Fair Value Measurement
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Long-term debt, fair value disclosure		$ 268,300,000	$ 218,300,000

Contingencies - Additional Info

Contingencies - Additional Information (Details) $ in Thousands		3 Months Ended			6 Months Ended
	Jan. 05, 2023 USD ($)	Jun. 30, 2023 USD ($)	Mar. 31, 2023 USD ($)	Jun. 30, 2022 USD ($)	Jun. 30, 2023 USD ($)	Jun. 30, 2022 USD ($)	Jul. 27, 2023 lawsuit claim class_action	Dec. 31, 2022 USD ($)	Dec. 31, 2021 USD ($)
Loss Contingencies [Line Items]
Product liability expense (benefit)		$ 0		$ 2,926	$ 3	$ 5,698
Tax-effected loss on divestiture					199,578	0
Insurance receivables		0			0			$ 127,600	$ 130,200
Insurance receivables, current								17,300
Insurance receivables, noncurrent								110,300
Notes receivable from insurance companies		0			0			44,600	$ 48,500
Notes receivable from insurance companies, current		0			0			5,931
Amount reported in notes receivable, insurance companies, noncurrent								38,700
Product warranty expense					4,700	4,800
MSA LLC | Joint Venture By R&Q Insurance Holdings Ltd. And Obra Capital, Inc.
Loss Contingencies [Line Items]
Contributed cash and cash equivalents by acquiree	$ 35,000
Disposal Group, Disposed of by Sale, Not Discontinued Operations | MSA LLC
Loss Contingencies [Line Items]
Disposal group, contributed cash and cash equivalents	$ 341,200		$ 341,200
Tax-effected loss on divestiture		199,600	199,600
Disposal group, transaction costs			$ 5,600		5,600
Single incident
Loss Contingencies [Line Items]
Product liability accrual		$ 1,500			1,500			1,400
Product liability expense (benefit)					$ 100	$ 100
Cumulative trauma
Loss Contingencies [Line Items]
Product liability accrual								395,100
Claims settled, but not yet paid
Loss Contingencies [Line Items]
Product liability accrual								13,400
Damages From Product Substances | Subsequent Event
Loss Contingencies [Line Items]
Number of pending lawsuits | lawsuit							137
Number of pending claims | claim							8,231
Number of pending class actions | class_action							1
Other current liabilities | Cumulative trauma
Loss Contingencies [Line Items]
Product liability accrual								65,100
Other noncurrent liabilities | Cumulative trauma
Loss Contingencies [Line Items]
Product liability accrual								$ 330,000

Contingencies - Impact of Dives

Contingencies - Impact of Divestiture (Details) - USD ($) $ in Thousands		3 Months Ended			6 Months Ended
	Jan. 05, 2023	Jun. 30, 2023	Mar. 31, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Loss on divestiture of MSA LLC		$ 0		$ 0	$ (129,211)	$ 0
Tax-effected loss on divestiture of MSA LLC					(199,578)	$ 0
Disposal Group, Disposed of by Sale, Not Discontinued Operations | MSA LLC
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Cash and cash equivalents	$ (341,200)		$ (341,200)
Current insurance receivables			(17,300)
Notes receivable, insurance companies			(5,900)
Noncurrent insurance receivables			(110,300)
Notes receivable, insurance companies, noncurrent			(38,700)
Current product liability			65,100
Noncurrent product liability			324,700
Loss on divestiture of MSA LLC before transaction costs			(123,600)
Transaction costs			(5,600)		$ (5,600)
Loss on divestiture of MSA LLC			(129,200)
Income tax expense			(70,400)
Tax-effected loss on divestiture of MSA LLC		$ (199,600)	$ (199,600)

Contingencies - Summary of Insu

Contingencies - Summary of Insurance Receivable Balances and Activity Related to Cumulative Trauma Product Liability Losses (Details) - USD ($) $ in Millions	6 Months Ended	12 Months Ended
	Jun. 30, 2023	Dec. 31, 2022
Movement in Loss Contingency Receivable, Increase (Decrease) [Roll Forward]
Balance beginning of period	$ 127.6	$ 130.2
Divestiture of MSA LLC	(127.6)	0
Additions	0	1.8
Collections and other adjustments	0	(4.4)
Balance end of period	$ 0	$ 127.6

Contingencies - Schedule of Not

Contingencies - Schedule of Notes Receivable Balances from Insurance Companies (Details) - USD ($) $ in Millions	6 Months Ended	12 Months Ended
	Jun. 30, 2023	Dec. 31, 2022
Movement in Loss Contingency Receivable, Increase (Decrease) [Roll Forward]
Balance beginning of period	$ 44.6	$ 48.5
Divestiture of MSA LLC	(44.6)	0
Additions	0	1.2
Collections	0	(5.1)
Balance end of period	$ 0	$ 44.6

Contingencies - Schedule of Pro

Contingencies - Schedule of Product Warranty Liability (Details) - USD ($) $ in Thousands	6 Months Ended	9 Months Ended
	Jun. 30, 2023	Sep. 30, 2022
Movement in Standard and Extended Product Warranty Accrual, Increase (Decrease) [Roll Forward]
Beginning warranty reserve	$ 15,230	$ 12,423
Warranty payments	(4,790)	(10,631)
Warranty claims	4,914	14,544
Provision for product warranties and other adjustments	(252)	$ (1,106)
Ending warranty reserve	$ 15,102