Mativ (MATV) 10-K 1 Mar 22 2020 FY Annual report Financial data

Cover Page

Cover Page - USD ($) $ in Billions	12 Months Ended
	Dec. 31, 2021	Mar. 01, 2022	Jun. 30, 2021
Cover [Abstract]
Document Type	10-K
Document Annual Report	true
Document Period End Date	Dec. 31, 2021
Current Fiscal Year End Date	--12-31
Document Transition Report	false
Entity File Number	1-13948
Entity Registrant Name	SCHWEITZER-MAUDUIT INTERNATIONAL, INC.
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	62-1612879
Entity Address, Address Line One	100 North Point Center East,
Entity Address, Postal Zip Code	30022
Entity Address, City or Town	Alpharetta,
Entity Address, State or Province	GA
City Area Code	800
Local Phone Number	514-0186
Title of 12(b) Security	Common stock, $0.10 par value
Trading Symbol	SWM
Security Exchange Name	NYSE
Entity Well-known Seasoned Issuer	Yes
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Large Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
ICFR Auditor Attestation Flag	true
Entity Shell Company	false
Entity Public Float			$ 1.2
Entity Common Stock, Shares Outstanding		31,675,782
Documents incorporated by reference	Portions of the registrant's definitive Proxy Statement relating to its 2022 Annual Meeting of Stockholders scheduled to be held on April 21, 2022 (the "2022 Proxy Statement") and filed pursuant to Regulation 14A are incorporated by reference into Part III of this Annual Report on Form 10-K.
Entity Central Index Key	0001000623
Document Fiscal Year Focus	2020
Document Fiscal Period Focus	FY
Amendment Flag	false

Audit Information

Audit Information	12 Months Ended
	Dec. 31, 2021
Auditor Information [Abstract]
Auditor Name	Deloitte & Touche LLP
Auditor Location	Atlanta, Georgia
Auditor Firm ID	34

Consolidated Statements of Inco

Consolidated Statements of Income - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Income Statement [Abstract]
Net sales	$ 1,440	$ 1,074.4	$ 1,022.8
Cost of products sold	1,109.7	766.1	732.8
Gross profit	330.3	308.3	290
Selling expense	46.7	36.9	33.7
Research expense	20.3	13.8	13.5
General expense	169.9	116.9	105.1
Total nonmanufacturing expenses	236.9	167.6	152.3
Restructuring and impairment expense	10.1	11.9	3.7
Operating profit	83.3	128.8	134
Interest expense	46.1	30.5	36.1
Other income (expense), net	35.9	(1)	(1)
Income before income taxes and income from equity affiliates	73.1	97.3	96.9
(Benefit) provision for income taxes	(9.4)	18.4	15.2
Income from equity affiliates, net of income taxes	6.4	4.9	4.1
Net income	$ 88.9	$ 83.8	$ 85.8
Net income per share - basic:
Net income per share - basic (in dollars per share)	$ 2.83	$ 2.68	$ 2.78
Net income per share – diluted:
Net income per share - diluted (in dollars per share)	$ 2.80	$ 2.66	$ 2.76
Weighted average shares outstanding:
Basic (in shares)	31,030,400	30,832,700	30,652,200
Diluted (in shares)	31,400,300	31,104,200	30,838,300

Consolidated Statements of Comp

Consolidated Statements of Comprehensive Income - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Statement of Comprehensive Income [Abstract]
Net income	$ 88.9	$ 83.8	$ 85.8
Other comprehensive (loss) income, net of tax:
Foreign currency translation adjustments	(24.4)	16.6	1.8
Less: Reclassification adjustment for realized translation adjustments	0	(0.1)	(0.9)
Unrealized gain (loss) on derivative instruments	6.1	(11.6)	1.6
Less: Reclassification adjustment for loss (gain) on derivative instruments included in net income	5.1	2	(4.5)
Net gain (loss) from postretirement benefit plans	3.3	(0.1)	0.6
Less: Amortization of postretirement benefit plans' costs included in net periodic benefit cost	2.8	3.9	3.3
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent, Total	(7.1)	10.7	1.9
Comprehensive income	$ 81.8	$ 94.5	$ 87.7

Consolidated Balance Sheets

Consolidated Balance Sheets - USD ($) $ in Millions	Dec. 31, 2021	Dec. 31, 2020
ASSETS
Cash and cash equivalents	$ 74.7	$ 54.7
Accounts receivable, net	238	148.5
Inventories	259.5	179.7
Income taxes receivable	10	6.2
Other current assets	12.4	7.3
Total current assets	594.6	396.4
Property, plant and equipment, net	463.9	339
Deferred income tax benefits	33.9	2.6
Investment in equity affiliates	64.6
Goodwill	648.3	403.7
Intangible assets, net	513.9	314.7
Other assets	101.1	69.2
Total assets	2,420.3	1,584.9
LIABILITIES AND STOCKHOLDERS' EQUITY
Current debt	3.2	2.8
Accounts payable	116	60.5
Income taxes payable	2.6	2.7
Accrued expenses	109.3	100.9
Total current liabilities	231.1	166.9
Long-term debt	1,267.1	590.5
Long-term income tax payable	16.6	17.7
Pension and other postretirement benefits	39	36.5
Deferred income tax liabilities	95.1	45.1
Other liabilities	89.2	78.6
Total liabilities	1,738.1	935.3
Stockholders' equity:
Preferred stock, $0.10 par value per share; 10,000,000 shares authorized; None issued or outstanding	0	0
Common stock, $0.10 par value per share; 100,000,000 shares authorized; 31,449,563 and 31,324,745 shares issued and outstanding at December 31, 2021 and 2020, respectively	3.1	3.1
Additional paid-in-capital	101.7	92.2
Retained earnings	696.4	666.2
Accumulated other comprehensive loss	(119)	(111.9)
Total stockholders' equity	682.2	649.6
Total liabilities and stockholders' equity	$ 2,420.3	$ 1,584.9

Consolidated Balance Sheets (Pa

Consolidated Balance Sheets (Parenthetical) - $ / shares	Dec. 31, 2021	Dec. 31, 2020
Statement of Financial Position [Abstract]
Preferred stock, par value (in dollars per share)	$ 0.10	$ 0.10
Preferred stock, shares authorized (in shares)	10,000,000	10,000,000
Preferred stock, shares issued (in shares)	0	0
Preferred stock, shares outstanding (in shares)	0	0
Common stock, par value (in dollars per share)	$ 0.10	$ 0.10
Common stock, shares authorized (in shares)	100,000,000	100,000,000
Common stock, shares issued (in shares)	31,449,563	31,324,745
Common stock, shares outstanding (in shares)	31,449,563	31,324,745

Consolidated Statements of Chan

Consolidated Statements of Changes in Stockholders' Equity - USD ($) $ in Millions	Total	Cumulative effects of change in accounting standards	Common Stock Issued	Additional Paid-In Capital	Retained Earnings	Retained EarningsCumulative effects of change in accounting standards	Accumulated Other Comprehensive (Loss) Income
Balance (in shares) at Dec. 31, 2018			30,771,244
Balance at Dec. 31, 2018	$ 557.9	$ (0.3)	$ 3.1	$ 71.1	$ 608.2	$ (0.3)	$ (124.5)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	85.8				85.8
Other comprehensive income (loss), net of tax	1.9						1.9
Dividends declared	(54.4)				(54.4)
Restricted stock issuances, net (in shares)			147,113
Stock-based employee compensation expense	7.6			7.6
Stock issued to directors as compensation (in shares)			3,601
Stock issued to directors as compensation	0.1			0.1
Purchases and cancellation of common stock (in shares)			(25,297)
Purchases and cancellation of common stock	(0.9)				(0.9)
Balance (in shares) at Dec. 31, 2019			30,896,661
Balance at Dec. 31, 2019	597.7		$ 3.1	78.8	638.4		(122.6)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	83.8				83.8
Other comprehensive income (loss), net of tax	10.7						10.7
Dividends declared	(55)				(55)
Restricted stock issuances, net (in shares)			302,705
Stock-based employee compensation expense	8.6			8.6
Modification to director stock-based compensation	4			4
Stock issued to directors as compensation (in shares)			3,689
Stock issued to directors as compensation	0.8			0.8
Deferred compensation directors stock trust (in shares)			149,469
Purchases and cancellation of common stock (in shares)			(27,779)
Purchases and cancellation of common stock	(1)				(1)
Balance (in shares) at Dec. 31, 2020			31,324,745
Balance at Dec. 31, 2020	649.6		$ 3.1	92.2	666.2		(111.9)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	88.9				88.9
Other comprehensive income (loss), net of tax	(7.1)						(7.1)
Dividends declared	(55.3)				(55.3)
Restricted stock issuances, net (in shares)			201,261
Stock-based employee compensation expense	8.4			8.4
Stock issued to directors as compensation (in shares)			2,347
Stock issued to directors as compensation	1.1			1.1
Purchases and cancellation of common stock (in shares)			(78,790)
Purchases and cancellation of common stock	(3.4)				(3.4)
Balance (in shares) at Dec. 31, 2021			31,449,563
Balance at Dec. 31, 2021	$ 682.2		$ 3.1	$ 101.7	$ 696.4		$ (119)

Consolidated Statements of Ch_2

Consolidated Statements of Changes in Stockholders' Equity (Parenthetical) - $ / shares	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Statement of Stockholders' Equity [Abstract]
Dividends declared (in dollars per share)	$ 1.76	$ 1.76	$ 1.76

Consolidated Statements of Cash

Consolidated Statements of Cash Flow - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Operations
Net income	$ 88.9	$ 83.8	$ 85.8
Non-cash items included in net income:
Depreciation and amortization	92.7	72.2	57.7
Impairments	1.6	0	1.1
Deferred income tax benefit	(27)	(5.2)	(3.4)
Pension and other postretirement benefits	0.7	3.7	2.6
Stock-based compensation	8.5	8.8	7.7
Income from equity affiliates	(6.4)	(4.9)	(4.1)
Brazil tax assessment accruals, net	(6.1)	0	10.9
Gain on sale of assets	(35.3)	0	(0.3)
Long-term income tax payable	0	(0.5)	(0.6)
Cash dividends received from equity affiliates	3.3	2.7	2.6
Other items	(1.4)	6.7	2.1
Changes in operating working capital:
Accounts receivable	(28.1)	(5.3)	10.8
Inventories	(31.4)	(3.5)	(11.2)
Prepaid expenses	0.7	0.6	(0.2)
Accounts payable and other current liabilities	3.5	(5.3)	1.8
Accrued income taxes	(6.1)	7.8	(3)
Net changes in operating working capital	(61.4)	(5.7)	(1.8)
Net cash provided by operating activities of:
Cash provided by operations	58.1	161.6	160.3
Investing
Capital spending	(35.9)	(30.1)	(28.6)
Capitalized software costs	(3)	(3.2)	(5.5)
Acquisitions, net of cash acquired	(630.6)	(169.3)	0
Proceeds from sale of assets	35.3	0.5	14.7
Other investing	(2.3)	(1)	4.6
Cash used for investing	(636.5)	(203.1)	(14.8)
Financing
Cash dividends paid to SWM stockholders	(55.3)	(55)	(54.4)
Changes in short-term debt, net	0	0	(0.1)
Proceeds from issuances of long-term debt	744.5	212.7	19.1
Payments on long-term debt	(55.9)	(165.3)	(99.5)
Payments for debt issuance costs	(14.6)	0	0
Payments on financing lease obligations	(15.4)	0	0
Purchases of common stock	(3.4)	(1)	(0.9)
Cash provided by (used in) financing	599.9	(8.6)	(135.8)
Effect of exchange rate changes on cash and cash equivalents	(1.5)	1.8	(0.5)
Increase (decrease) in cash and cash equivalents	20	(48.3)	9.2
Cash and cash equivalents at beginning of period	54.7	103	93.8
Cash and cash equivalents at end of period	$ 74.7	$ 54.7	$ 103

General

General	12 Months Ended
	Dec. 31, 2021
Organization, Consolidation and Presentation of Financial Statements [Abstract]
General	General Nature of Business Schweitzer-Mauduit International, Inc., or SWM or the Company, headquartered in the United States of America, is a multinational diversified producer of highly engineered solutions and advanced materials for a variety of industries. The Company maintains two operating product line segments: Advanced Materials & Structures ("AMS") and Engineered Papers ("EP"). The AMS segment offers design and manufacturing solutions for the healthcare, construction, industrial, transportation and filtration end-markets. We manufacture resin-based rolled goods such as nets, films and meltblown materials, bonding products and adhesive components, along with providing adhesives and other coating solutions and converting services for our customers. The EP segment primarily serves the tobacco industry with production of various cigarette papers and reconstituted tobacco products ("Recon"). Traditional reconstituted tobacco leaf ("RTL") is used as a blend with virgin tobacco in cigarettes and used in the production of small cigars. Recon, as well as low ignition propensity ("LIP") cigarette paper, a specialty product with fire-safety features, are two key profit drivers, which together account for more than half of segment net sales. The EP segment also produces non-tobacco papers for premium applications, such as energy storage and industrial commodity paper grades. We conduct business in over 90 countries and operate 38 production locations worldwide, with facilities in the U.S., Canada, United Kingdom, France, Luxembourg, Belgium, Brazil, China, Italy, Malaysia, India and Poland. We also have a 50% equity interest in two joint ventures in China. The first, China Tobacco Mauduit (Jiangmen) Paper Industry Ltd., or CTM, produces cigarette and porous plug wrap papers and the second, China Tobacco Schweitzer (Yunnan) Reconstituted Tobacco Co. Ltd., or CTS, produces RTL. As used in this 2021 Annual Report on Form 10-K, unless the context indicates otherwise, references to "we," "us," "our," "SWM," "Schweitzer-Mauduit" or similar terms include Schweitzer-Mauduit International, Inc. and its consolidated subsidiaries.

Summary of Significant Accounti

Summary of Significant Accounting Policies	12 Months Ended
	Dec. 31, 2021
Accounting Policies [Abstract]
Summary of Significant Accounting Policies	Summary of Significant Accounting Policies Basis of Presentation The accompanying consolidated financial statements and the notes thereto have been prepared in accordance with accounting principles generally accepted in the United States of America, "U.S. GAAP." The preparation of financial statements in conformity with U.S. GAAP requires the Company to make estimates and assumptions that affect the reported amounts of assets and liabilities, disclosure of contingent assets and liabilities at the date of the financial statements, and the reported amounts of revenue and expenses during the reporting periods. The Company believes the estimates and assumptions used in the preparation of these consolidated financial statements are reasonable, based upon currently available facts and known circumstances. Actual results may differ from those estimates and assumptions as a result of a number of factors, including those discussed elsewhere in this report and in its other public filings from time to time. Principles of Consolidation The consolidated financial statements include the accounts of the Company and wholly-owned, majority-owned and controlled subsidiaries. Intercompany balances and transactions have been eliminated. The Company uses the equity method to account for its investments in two joint ventures with the China National Tobacco Corporation (see Note 9. Joint Ventures). Investment in equity affiliates represents the Company’s investment in these joint ventures. The Company’s 50% share of the net income of the joint ventures is included in the consolidated statements of income as income from equity affiliates. Revenue Recognition The Company has two main sources of revenue: product sales and materials conversion. The Company recognizes product sales revenues when control of a product is transferred to the customer. For the majority of product sales, transfer of control occurs when the products are shipped from one of the Company’s manufacturing facilities to the customer. Any freight costs billed to and paid by a customer are included in net sales. The Company also provides services to customers through the conversion of customer-owned raw materials into processed finished goods. In these transactions, the Company generally recognizes revenue as processing is completed. Freight Costs The cost of delivering finished goods to the Company's customers is recorded as a component of cost of products sold. Those costs include the amounts paid to a third party to deliver the finished goods. Royalty Income Royalties from third-party patent licenses are recognized when earned, including monies received at an agreement's initiation attributable to past sales. The Company recognizes up-front payments upon receipt when it has no future performance requirement or ongoing obligation arising from its agreements and the payment is for a separate earnings process. Minimum annual royalties received in advance are deferred and are recognized in the period earned. The Company recognized $8.8 million, $7.5 million, and $6.8 million of royalty income during 2021, 2020 and 2019 respectively, which is included in net sales in the Consolidated Statements of Income. Foreign Currency Translation The income statements of foreign entities are translated into U.S. dollars at average exchange rates prevailing during the periods presented. The balance sheets of these entities are translated at period-end exchange rates, and the differences from historical exchange rates are reflected in a separate component of accumulated other comprehensive loss as unrealized foreign currency translation adjustments. Foreign currency risks arise from transactions and balances denominated in non-local currencies. Gains and losses resulting from remeasurement and settlement of such transactions and balances, net of currency hedge impacts, included in Other income (expense), net, were losses of $7.3 million, $0.9 million, and $1.4 million in 2021, 2020 and 2019, respectively. Derivative Instruments The Company is exposed to changes in foreign currency exchange rates, interest rates and commodity prices. The Company utilizes a variety of practices to manage these market risks, including where considered appropriate, derivative instruments. The Company uses derivative instruments only for risk management purposes and not for trading or speculation. All derivative instruments the Company uses are either exchange traded or are entered into with major financial institutions in order to reduce credit risk and risk of nonperformance by third parties. The Company believes the credit risks with respect to the counterparties, and the foreign currency risks that would not be hedged if the counterparties fail to fulfill their obligations under the contracts, are not material in view of its understanding of the financial strength of the counterparties. Gains and losses on instruments that hedge firm commitments are deferred and included in the basis of the underlying hedged items. All other hedging gains and losses are included in period income or expense based on the period-end market price of the instrument and are included in the Company's operating cash flows. See Note 15. Derivatives, for additional information. Cash and Cash Equivalents The Company considers all highly liquid, unrestricted investments with remaining maturities of three months or less to be cash equivalents, including money market funds with no restrictions on withdrawals. As of December 31, 2021, and 2020, included in Cash and cash equivalents on the Consolidated Balance Sheets is $0.6 million in contractually restricted cash. Business Combinations The Company uses the acquisition method of accounting for business combinations. At the acquisition date, the Company records assets acquired, and liabilities assumed at their respective fair market values. The Company estimates fair value using the exit price approach which is the price that would be received to sell an asset or paid to transfer a liability in an orderly market. An exit price is determined from a market participant's viewpoint in the principal or most advantageous market and may result in the Company valuing assets or liabilities at a fair value that is not reflective of the Company's intended use of the assets or liabilities. Any excess consideration above the estimated fair values of the net assets acquired is recognized as goodwill on the Company's Consolidated Balance Sheets. The operating results of acquired businesses are included in the Company's results of operations beginning as of their effective acquisition dates. Acquisition costs are expensed as incurred and were $8.7 million and $1.1 million in 2021 and 2020, respectively. There were no acquisition costs incurred in 2019. Impairment of Long-Lived Assets, Goodwill, and Intangible Assets The Company evaluates the carrying value of long-lived assets, including property and equipment, goodwill, and intangible assets when events and circumstances warrant a review. Goodwill is also tested for impairment annually during the fourth quarter. We first evaluate qualitative factors, such as macroeconomic conditions and our overall financial performance by reporting unit to determine whether it is more likely than not that the fair value of a reporting unit is less than its carrying amount, including goodwill. We then evaluate how significant each of the identified factors could be to the fair value or carrying amount of a reporting unit and weigh these factors in totality in forming a conclusion of whether or not it is more likely than not that the fair value of a reporting unit is less than its carrying amount (the “Step 0 Test”). Goodwill is not impaired if we determine that it is not more likely than not that the fair value of a reporting unit is less than its carrying amount. Otherwise, we would proceed to the goodwill impairment test. Alternatively, we may also bypass the Step 0 Test and proceed directly to the goodwill impairment test, where the fair value of the reporting unit is compared to the carrying value. The difference between the total fair value of the reporting unit and the carrying value is recognized as an impairment to the reporting unit's goodwill. See Note 10. Goodwill for further discussion of the Company's annual impairment test results. During the annual testing performed as of October 1, 2021, the estimated fair value of each of the Company's reporting units was in excess of its respective carrying value. We have acquired trade names that have been determined to have indefinite lives. We evaluate a number of factors to determine whether an indefinite life is appropriate, including the competitive environment, category share, business history, product life cycle and operating plans. Indefinite-lived intangibles are evaluated for impairment annually during the fourth quarter. Additionally, when certain events or changes in operating conditions occur, an impairment assessment is performed, and indefinite-lived trade names may be adjusted to a determinable life or an impairment charge may be recorded. The cost of intangible assets with determinable useful lives is amortized to reflect the pattern of economic benefits consumed, which approximates a straight-line basis, over the estimated periods benefited. When certain events or changes in operating conditions occur, an impairment assessment is performed and lives of intangible assets with determinable lives may be adjusted. Estimated useful lives range from 15 to 23 years for customer relationships and 4 to 20 years for developed technology, patents, and other intangible assets. The carrying value of long-lived assets is reviewed to determine if events or circumstances have changed which may indicate that the assets may be impaired, or the useful life may need to be changed. Upon occurrence of such a triggering event, the Company considers internal and external factors relating to each asset group, including expectation of future profitability, undiscounted cash flows and its plans with respect to the operations. If impairment is indicated, an impairment loss is measured by the amount the net carrying value of the asset exceeds its estimated fair value. Environmental Spending Environmental spending is capitalized if such spending qualifies as property, plant and equipment, substantially increases the economic value or extends the useful life of an asset. All other such spending is expensed as incurred, including fines and penalties incurred in connection with environmental violations. Environmental spending relating to an existing condition caused by past operations is expensed. Liabilities are accrued when environmental assessments are probable, and the costs can be reasonably estimated. Generally, timing of these accruals coincides with completion of a feasibility study or commitment to a formal plan of action. Capitalized Software Costs The Company capitalizes certain purchases of software and software development costs in connection with major projects of software development for internal use. These costs are included in Other assets on the Consolidated Balance Sheets and are amortized using the straight-line method over the estimated useful life not to exceed seven years. Costs associated with business process redesign, end-user training, system start-up and ongoing software maintenance are expensed as incurred. Amortization of capitalized software was $3.0 million, $2.1 million and $1.9 million for the years ended December 31, 2021, 2020 and 2019, respectively. Accumulated amortization of capitalized software costs was $58.9 million and $40.5 million at December 31, 2021 and 2020, respectively. See Note 12. Other Assets for additional information. Business Tax Credits Business tax credits represent value added tax credits receivable and similar assets, such as Imposto sobre Circulação de Mercadorias e Serviços, or ICMS, in Brazil. Business tax credits are generated when value-added taxes, or VAT, are paid on purchases. VAT and similar taxes are collected from customers on certain sales. In some jurisdictions, export sales do not require VAT collection. See Note 12. Other Assets for additional information. Income Taxes Our income tax expense, deferred tax assets and liabilities, and liabilities for unrecognized tax benefits reflect management’s best estimate of current and future taxes to be paid. We operate and are subject to income taxes in the U.S. and numerous foreign jurisdictions. The complexity of our global structure requires technical expertise in determining the allocation of income to each of these jurisdictions and consolidated income tax expense. The Company accounts for income taxes under the asset and liability method, which requires the recognition of deferred tax assets and liabilities for the expected future tax consequences of events that have been included in the financial statements. Under this method, deferred tax assets and liabilities are determined on the basis of the differences between the financial statement and tax bases of assets and liabilities by using enacted tax rates in effect for the year in which the differences are expected to reverse. The effect of a change in tax rates on deferred tax assets and liabilities is recognized in income in the period that includes the enactment date. The Company recognizes deferred tax assets to the extent that it believes that these assets are more likely than not to be realized. In making such a determination, all available positive and negative evidence is considered, including future reversals of existing taxable temporary differences, projected future taxable income, tax planning strategies, and results of recent operations. If it is determined that the Company would be able to realize the deferred tax assets in the future in excess of their net recorded amount, an adjustment would be made to the deferred tax asset valuation allowance, which would reduce the provision for income taxes. The Company records uncertain tax positions in accordance with ASC 740 on the basis of a two-step process in which (1) it is determined whether it is more likely than not that the tax positions will be sustained on the basis of the technical merits of the position and (2) for those tax positions that meet the more-likely-than-not recognition threshold, the Company recognizes the largest amount of tax benefit that is more than 50 percent likely to be realized upon ultimate settlement with the related tax authority. Pension and Other Postretirement Benefits Accounting The Company recognizes the estimated compensation cost of employees' pension and other postretirement benefits over their approximate period of service. The Company's earnings are impacted by amounts of expense recorded related to these benefits, which primarily consist of U.S., U.K., and French pension benefits. Each year's recorded expenses are estimates based on actuarial calculations of the Company's accumulated and projected benefit obligations, or PBOs, for the Company's various plans. Suspension of additional benefits for future service is considered a curtailment, and if material, necessitates a re-measurement of plan assets and PBO. As part of a re-measurement, the Company adjusts its discount rates and other actuarial assumptions, such as retirement, turnover and mortality table assumptions, as appropriate. See Note 18. Postretirement and Other Benefits for additional information. Comprehensive Income Comprehensive income includes net income, as well as items charged and credited directly to stockholders' equity, which are excluded from net income. The Company has presented comprehensive income in the Consolidated Statements of Comprehensive Income. Reclassification adjustments of derivative instruments are presented in Net sales and Interest expense in the Consolidated Statements of Income. See Note 15. Derivatives for additional information. Amortization of accumulated pension and other post-employment benefit (OPEB) liabilities are included in the computation of net periodic pension and OPEB costs, which are more fully discussed in Note 18. Postretirement and Other Benefits. Components of Accumulated other comprehensive (loss) income were as follows ($ in millions): December 31, 2021 2020 Accumulated pension and OPEB liability adjustments, net of income tax benefit of $8.9 million and $11.6 million at December 31, 2021 and 2020, respectively $ (14.4) $ (20.5) Accumulated unrealized loss on derivative instruments, net of income tax benefit of $2.1 million and $2.8 million at December 31, 2021 and 2020, respectively (1.9) (13.1) Accumulated unrealized foreign currency translation adjustments, net of income tax benefit of $9.5 million and $10.1 million at December 31, 2021 and 2020, respectively (102.7) (78.3) Accumulated other comprehensive loss $ (119.0) $ (111.9) Changes in the components of Accumulated other comprehensive (loss) income were as follows ($ in millions): For the Years Ended December 31, 2021 2020 2019 Pre-tax Tax Net of Pre-tax Tax Net of Pre-tax Tax Net of Pension and OPEB liability adjustments $ 8.9 $ (2.8) $ 6.1 $ 5.0 $ (1.2) $ 3.8 $ 2.5 $ 1.4 $ 3.9 Derivative instrument adjustments 11.9 (0.7) 11.2 (10.8) 1.2 (9.6) (2.9) — (2.9) Unrealized foreign currency translation adjustments (23.8) (0.6) (24.4) 11.5 5.0 16.5 (2.5) 3.4 0.9 Total $ (3.0) $ (4.1) $ (7.1) $ 5.7 $ 5.0 $ 10.7 $ (2.9) $ 4.8 $ 1.9 Restricted Stock All of the Company's restricted stock grants, including those that have been earned in the case of performance-based shares and cliff-vesting grants that are not performance based, vest upon completion of a specified period of time, typically between two Restricted Stock Plan Performance Based Shares The Company's long-term incentive compensation program, or LTICP, for key employees includes an equity-based award component that is provided through the Long-term Incentive Plan, or LTIP, which the Company adopted in 2015 and which replaced its previous Restricted Stock Plan, or RSP. The objectives under the LTICP are established at the beginning of a performance cycle and are intended to focus management on longer-term strategic goals. The Compensation Committee of the Board of Directors designates participants in the LTICP and LTIP and determines the equity-based award opportunity in the form of restricted stock for each performance cycle, which is generally measured on the basis of a one year performance period (the measurement period). The restricted shares are considered issued and outstanding when the number of shares becomes fixed, after the annual performance is determined, and such awards vest at the end of the performance year or some predetermined period thereafter. The Company recognizes compensation expense with an offsetting credit to additional paid-in-capital over the performance period based on the fair value of the award at the date of grant, with compensation expense being adjusted cumulatively based on the number of shares expected to be earned according to the level of achievement of performance goals. Fair Value Option The Company has not elected to measure its financial instruments or certain commitments at fair value. Recently Adopted Accounting Pronouncements In December 2019, the FASB issued ASU 2019-12, "Income Taxes (Topic 740): Simplifying the Accounting for Income Taxes." The new standard simplifies income tax accounting requirements by removing certain exceptions to the general principles in Topic 740, Income Taxes. The provisions of this ASU were adopted effective January 1, 2021, and did not have a material impact on the consolidated financial statements. In August 2018, the FASB issued ASU 2018-14, "Compensation—Retirement Benefits—Defined Benefit Plans—General (Subtopic 715-20): Disclosure Framework—Changes to the Disclosure Requirements for Defined Benefit Plans." The new standard modifies the annual disclosure requirements for employers that sponsor defined benefit pension or other postretirement plans and requires the amendments to be applied on a retrospective basis for all periods presented. The provisions of this ASU were adopted effective January 1, 2021. The required disclosure changes did not have a material impact on the consolidated financial statements Recently Issued Accounting Standards In March 2020, the FASB issued ASU 2020-04, "Reference Rate Reform (Topic 848): Facilitation of the Effects of Reference Rate Reform on Financial Reporting." The new standard provides optional expedients and exceptions for applying generally accepted accounting principles ("GAAP") to contracts, hedging relationships, and other transactions affected by reference rate reform and the anticipated discontinuance of the London Interbank Offered Rate ("LIBOR") if certain criteria are met. The amendments in this ASU are effective for all entities as of March 12, 2020, through December 31, 2022. The Company does not currently have any contracts that have been changed to a new reference rate but will continue to evaluate the applicability and impact of the guidance.

Revenue Recognition

Revenue Recognition	12 Months Ended
	Dec. 31, 2021
Revenue from Contract with Customer [Abstract]
Revenue Recognition	Revenue Recognition Revenue is recognized when performance obligations under the terms of a contract with a customer are satisfied, which generally occurs when control of the promised goods or services is transferred to the customer, in an amount that reflects the consideration the Company expects to be entitled to in exchange for those goods or services. Generally, the Company considers collectability of amounts due under a contract to be probable upon inception of a sale based on an evaluation of the credit worthiness of each customer. If collectability is not considered to be probable, the Company defers recognition of revenue on satisfied performance obligations until the uncertainty is resolved. Any variable consideration, such as discounts or price concessions, is set forth in the terms of the contract at inception and is included in the assessment of the transaction price at the outset of the arrangement. The transaction price is allocated to the individual performance obligations due under the contract based on the relative stand-alone fair value of the performance obligations identified in the contract. The Company typically uses an observable price to determine the stand-alone selling price for separate performance obligations. The Company does not typically include extended payment terms or significant financing components in its contracts with customers. Certain product sales contracts may include cash-based incentives (volume rebates or credits), which are accounted for as variable consideration. We estimate these amounts at least quarterly based on the expected forecast quantities to be provided to customers and reduce revenues recognized accordingly. Incidental items that are immaterial in the context of the contract are recognized as expense in the period incurred. The Company generally expenses sales commissions when incurred because the amortization period is one year or less. These costs are recorded within sales and marketing expenses. The Company does not disclose the value of unsatisfied performance obligations for (i) contracts with an original expected length of one year or less and (ii) contracts for which we recognize revenue at the amount to which we have the right to invoice for services performed. As a practical expedient, the Company treats shipping and handling activities that occur after control of the good transfers as fulfillment activities, and therefore, does not account for shipping and handling costs as a separate performance obligation. Net sales are attributed to the following geographic locations based on the location of the Company’s direct customers ($ in millions): For the Years Ended December 31, 2021 2020 2019 AMS EP Total AMS EP Total AMS EP Total U.S. $ 562.5 $ 155.8 $ 718.3 $ 376.7 $ 161.9 $ 538.6 $ 331.3 $ 182.8 $ 514.1 Europe and the former Commonwealth of Independent States 193.8 189.5 383.3 47.5 182.2 229.7 45.8 172.6 218.4 Asia/Pacific (including China) 124.9 86.2 211.1 94.6 110.7 205.3 77.6 95.0 172.6 Americas (excluding U.S.) 31.4 46.5 77.9 9.3 43.6 52.9 7.6 45.6 53.2 Other foreign countries 18.1 31.3 49.4 15.4 32.5 47.9 14.9 49.6 64.5 Total revenues (1) $ 930.7 $ 509.3 $ 1,440.0 $ 543.5 $ 530.9 $ 1,074.4 $ 477.2 $ 545.6 $ 1,022.8 (1) Revenues include net hedging gains and losses for the years ended December 31, 2021, 2020 and 2019. The AMS segment supplies customers serving generally high-growth end-markets, as follows. Healthcare - Sales to the medical market include products used in finger bandages, diagnostic test strips, and hospital-setting products. Construction - Sales to the construction end-market are comprised mostly of netting products for a range of erosion control applications. Industrial - Sales to the industrial end-market include products for high-end coated digital printing, packaging, undersea cable wraps, consumer-oriented specialty tapes and wind-turbine production. Transportation - The Company’s primary products are aftermarket automotive paint protection films, in addition to ballistic resistant and security glass used in various transportation modes. Filtration - The Company serves liquid and other filtration markets, producing reverse osmosis and other water filtration products along with media and support materials for air filtration devices. Industrial - Sales to the industrial end-market include products for high-end coated digital printing, packaging, undersea cable wraps, consumer-oriented specialty tapes and wind-turbine production. Net sales for the AMS business are disaggregated by end market as the percentage of the net sales as follows. For the Years Ended December 31, 2021 2020 Healthcare 24 % 14 % Construction 20 % 23 % Industrial 20 % 17 % Transportation 18 % 22 % Filtration 18 % 24 % Total revenues (1) 100 % 100 % (1) Revenues include contributions from Scapa Group plc and Tekra LLC effective April 15, 2021, and March 13, 2020, respectively.

Leases

Leases	12 Months Ended
	Dec. 31, 2021
Leases [Abstract]
Leases	Leases The Company leases certain office space, warehouses, manufacturing facilities, land, and equipment. Leases with an initial term of 12 months or less are not recorded on the balance sheet; we recognize lease expense for these leases on a straight-line basis over the lease term. For leases without lease terms (i.e. month-to-month leases), lease expense is recognized as incurred and no asset or liability is recorded for these leases. The Company accounts for lease components (e.g., fixed payments including rent, real estate taxes and insurance costs) separately from non-lease components (e.g., common-area maintenance costs). Most leases include one or more options to renew, with renewal terms that can extend the lease term. The exercise of lease renewal options is at our sole discretion. Lease assets and liabilities are determined based on the lease term including those periods for which renewal options are considered reasonably certain to be exercised. Certain leases also include options to purchase the leased property, although we are unlikely to do so in most cases. The depreciable life of assets and leasehold improvements are limited by the expected lease term unless there is a transfer of title or purchase option reasonably certain of exercise. When available, the Company uses the rate implicit in the lease to discount lease payments to present value; however, most of the Company's leases do not provide a readily determinable implicit rate. Therefore, the Company must estimate its incremental borrowing rate to discount the lease payments based on information available at lease commencement. Components of right-of-use assets and lease liabilities presented in the balance sheet are as follows ($ in million): Assets Classification December 31, 2021 December 31, 2020 Operating lease right-of-use assets Other assets $ 25.1 $ 19.8 Finance lease right-of-use assets Property, plant and equipment, net 2.2 3.0 Total right of use assets $ 27.3 $ 22.8 Liabilities Classification December 31, 2021 December 31, 2020 Current operating lease obligation Accrued expenses $ 7.3 $ 5.2 Long-term operating lease obligation Other liabilities 18.7 15.6 Total operating lease obligation $ 26.0 $ 20.8 Current finance lease obligation Current debt $ 0.5 $ 0.5 Long-term finance lease obligation Long-term debt 2.3 3.0 Total finance lease obligation $ 2.8 $ 3.5 Components of lease expense incurred by the Company are as follow ($ in millions): Lease Cost Year Ended December 31, 2021 Year ended December 31, 2020 Finance lease cost (cost resulting from lease payments) Interest expense on lease liabilities $ 0.7 0.2 Amortization of right-of-use assets 0.9 0.5 Operating lease cost 8.4 6.8 Short-term lease expense 2.3 0.4 Total lease cost $ 12.3 $ 7.9 The following table represents future contractual lease liabilities for the next five years and thereafter for finance and operating leases ($ in millions): Maturity of Lease Liabilities Finance Operating Total 2022 $ 0.7 8.5 $ 9.2 2023 0.6 6.0 6.6 2024 0.5 5.0 5.5 2025 0.5 3.7 4.2 2026 0.5 2.3 2.8 Thereafter 0.4 4.3 4.7 Total lease payments $ 3.2 $ 29.8 $ 33.0 Less: Interest 0.4 3.8 4.2 Present value of lease liabilities $ 2.8 $ 26.0 $ 28.8 Lease Term and Discount Rate December 31, 2021 December 31, 2020 Weighted-average remaining lease term (years) Operating leases 4.9 5.8 Finance leases 5.5 6.3 Weighted-average discount rate Operating leases 5.44 % 6.19 % Finance leases 5.22 % 5.26 % Other Information (millions) Year Ended December 31, 2021 Year ended December 31, 2020 Cash paid for amounts included in the measurement of lease liabilities Operating cash flows from operating leases 8.7 6.9 Operating cash flows from finance leases 0.7 0.2 Leased assets obtained in exchange for new finance lease liabilities 15.1 0.4 Leased assets obtained in exchange for new operating lease liabilities 10.0 3.9
Leases	Leases The Company leases certain office space, warehouses, manufacturing facilities, land, and equipment. Leases with an initial term of 12 months or less are not recorded on the balance sheet; we recognize lease expense for these leases on a straight-line basis over the lease term. For leases without lease terms (i.e. month-to-month leases), lease expense is recognized as incurred and no asset or liability is recorded for these leases. The Company accounts for lease components (e.g., fixed payments including rent, real estate taxes and insurance costs) separately from non-lease components (e.g., common-area maintenance costs). Most leases include one or more options to renew, with renewal terms that can extend the lease term. The exercise of lease renewal options is at our sole discretion. Lease assets and liabilities are determined based on the lease term including those periods for which renewal options are considered reasonably certain to be exercised. Certain leases also include options to purchase the leased property, although we are unlikely to do so in most cases. The depreciable life of assets and leasehold improvements are limited by the expected lease term unless there is a transfer of title or purchase option reasonably certain of exercise. When available, the Company uses the rate implicit in the lease to discount lease payments to present value; however, most of the Company's leases do not provide a readily determinable implicit rate. Therefore, the Company must estimate its incremental borrowing rate to discount the lease payments based on information available at lease commencement. Components of right-of-use assets and lease liabilities presented in the balance sheet are as follows ($ in million): Assets Classification December 31, 2021 December 31, 2020 Operating lease right-of-use assets Other assets $ 25.1 $ 19.8 Finance lease right-of-use assets Property, plant and equipment, net 2.2 3.0 Total right of use assets $ 27.3 $ 22.8 Liabilities Classification December 31, 2021 December 31, 2020 Current operating lease obligation Accrued expenses $ 7.3 $ 5.2 Long-term operating lease obligation Other liabilities 18.7 15.6 Total operating lease obligation $ 26.0 $ 20.8 Current finance lease obligation Current debt $ 0.5 $ 0.5 Long-term finance lease obligation Long-term debt 2.3 3.0 Total finance lease obligation $ 2.8 $ 3.5 Components of lease expense incurred by the Company are as follow ($ in millions): Lease Cost Year Ended December 31, 2021 Year ended December 31, 2020 Finance lease cost (cost resulting from lease payments) Interest expense on lease liabilities $ 0.7 0.2 Amortization of right-of-use assets 0.9 0.5 Operating lease cost 8.4 6.8 Short-term lease expense 2.3 0.4 Total lease cost $ 12.3 $ 7.9 The following table represents future contractual lease liabilities for the next five years and thereafter for finance and operating leases ($ in millions): Maturity of Lease Liabilities Finance Operating Total 2022 $ 0.7 8.5 $ 9.2 2023 0.6 6.0 6.6 2024 0.5 5.0 5.5 2025 0.5 3.7 4.2 2026 0.5 2.3 2.8 Thereafter 0.4 4.3 4.7 Total lease payments $ 3.2 $ 29.8 $ 33.0 Less: Interest 0.4 3.8 4.2 Present value of lease liabilities $ 2.8 $ 26.0 $ 28.8 Lease Term and Discount Rate December 31, 2021 December 31, 2020 Weighted-average remaining lease term (years) Operating leases 4.9 5.8 Finance leases 5.5 6.3 Weighted-average discount rate Operating leases 5.44 % 6.19 % Finance leases 5.22 % 5.26 % Other Information (millions) Year Ended December 31, 2021 Year ended December 31, 2020 Cash paid for amounts included in the measurement of lease liabilities Operating cash flows from operating leases 8.7 6.9 Operating cash flows from finance leases 0.7 0.2 Leased assets obtained in exchange for new finance lease liabilities 15.1 0.4 Leased assets obtained in exchange for new operating lease liabilities 10.0 3.9

Business Acquisitions

Business Acquisitions	12 Months Ended
	Dec. 31, 2021
Business Combination and Asset Acquisition [Abstract]
Business Acquisitions	Business Acquisitions Scapa On April 15, 2021, SWM completed its previously announced acquisition of Scapa Group plc (“Scapa”), a UK- based innovation, design, and manufacturing solutions provider for healthcare and industrial markets for aggregate cash consideration of $630.6 million, net of $22.7 million of Cash and cash equivalents acquired and including $568.9 million for the purchase of all Scapa ordinary shares, $75.9 million for the repayment of Scapa debt and $8.5 million for the repayment of acquisition costs incurred by Scapa. The acquisition adds to SWM’s portfolio of precision engineered performance materials, expands the Company’s innovation, design, and formulation capabilities, and brings a variety of new coating and converting technologies to SWM. Scapa, part of the AMS segment operates globally with manufacturing and sales operations in the Americas, Asia and Europe. The purchase price was funded with borrowings under the amended Credit Agreement, as defined and discussed in Note 14. Debt. The acquisition was accounted for as a business combination with the assets acquired and liabilities assumed measured at their fair values as of the acquisition date, primarily using Level 3 inputs. The acquisition consideration allocation below is preliminary, pending completion of the fair value analyses of acquired assets and liabilities, including deferred taxes and the valuations of certain intangibles and personal property. The excess of the acquisition consideration over the estimated fair values of the acquired assets and assumed liabilities is assigned to goodwill. The goodwill, which is assigned to the AMS reportable segment, is primarily attributable to expected revenue synergies and is not expected to be deductible for tax purposes. The estimated purchase price allocation as of April 15, 2021, was revised during the third and fourth quarter as new information was received and analyzed resulting in a decrease in Deferred tax liabilities of $15.8 million, an increase in Property, plant and equipment of $8.1 million, an increase in Other liabilities, primarily due to changes in certain tax positions of $7.2 million, a $3.0 million decrease in Other assets, and other insignificant changes, as presented in the table below. As additional information related to income taxes becomes available, we may further revise the preliminary acquisition consideration allocation during the remainder of the measurement period, which will not exceed twelve months from the closing of the acquisition. Such revisions or changes may be material. The consideration paid for Scapa, and the preliminary estimated fair values of the assets acquired, and liabilities assumed as of the April 15, 2021, acquisition date were as follows ($ in millions): Preliminary Allocation as of December 31, 2021 Adjustments Preliminary Allocation as of April 15, 2021 Cash and cash equivalents $ 22.7 $ — $ 22.7 Accounts receivable 67.7 — 67.7 Inventory 60.0 (0.9) 60.9 Other current assets 9.7 (0.1) 9.8 Property, plant and equipment 160.2 8.1 152.1 Identifiable intangible assets 246.2 — 246.2 Other assets 23.3 (3.0) 26.3 Total assets $ 589.8 $ 4.1 $ 585.7 Current debt $ 15.0 $ — $ 15.0 Accounts payable and other current liabilities 85.8 (0.1) 85.9 Deferred income tax liabilities 45.7 (15.8) 61.5 Other liabilities 40.4 7.3 33.1 Net assets acquired $ 402.9 $ 12.7 $ 390.2 Goodwill 250.4 (12.7) 263.1 Total consideration $ 653.3 $ — $ 653.3 The fair value of receivables acquired approximates the gross contractual value. The contractual amount not expected to be collected is immaterial. Acquired inventory was comprised of finished goods and raw materials. The fair value of finished goods was based on net realizable value adjusted for the costs of selling and a reasonable profit margin on selling effort. The fair value of raw materials was determined to approximate book value. Property, plant and equipment is comprised of land, buildings and leasehold improvements, machinery and equipment, furniture and fixtures, computer equipment, and construction in progress. The preliminary estimated fair value was determined using a reproduction/replacement cost approach which measures the value of an asset by estimating the cost to acquire or construct comparable assets adjusted for age and condition of the asset. Acquired intangible assets include customer relationships, tradenames and developed technologies. Intangible assets were valued using the multi-period excess earnings and relief-from-royalty methods, both forms of the income approach which considers a forecast of future cash flows generated from the use of each asset. The following table shows the preliminary fair values assigned to identifiable intangible assets ($ in millions): Fair Value Weighted-Average Amortization Period (Years) Amortizable intangible assets: Customer relationships $ 205.4 15 Tradenames and other 7.7 10 Developed technology 33.1 7 Total amortizable intangible assets $ 246.2 The preliminary estimate of deferred tax effects resulting from the acquisition include the expected federal, state, and foreign tax consequences associated with temporary differences between the preliminary fair values of the assets acquired, liabilities assumed and the respective tax basis. During the twelve months ended December 31, 2021, the Company recognized direct and indirect acquisition-related costs for the Scapa acquisition of $8.7 million . Direct and indirect acquisition-related costs were expensed as incurred and are included in the General expense line item in the consolidated statements of income. The amounts of Net sales and Income from Scapa included in the Company's consolidated income statement from the acquisition date are as follows ($ in millions): April 15, 2021 - December 31, 2021 Net sales $ 305.6 Net income $ 0.6 Tekra On March 13, 2020, the Company completed the acquisition of 100% of the equity interest in Tekra, LLC and Trient, LLC, “Tekra,” pursuant to the definitive agreement signed as of February 20, 2020. Tekra is a converter of high-performance films and substrates which enhances the Company’s films capabilities. Tekra, part of the AMS segment, operates two manufacturing facilities located in Wisconsin. The consideration transferred to acquire Tekra was $169.3 million, net of $1.6 million cash and cash equivalents acquired, subject to working capital adjustments that were finalized in 2020. The purchase price was funded with borrowings from our Revolving Credit Facility (See Note 14. Debt). The acquisition was accounted for as a business combination with the assets acquired and liabilities assumed measured at their fair values as of the acquisition date, primarily using Level 3 inputs. The consideration paid for Tekra and the final fair values of the assets acquired, and liabilities assumed as of the March 13, 2020 acquisition date are as follows ($ in millions): Fair Value as of March 13, 2020 Cash and cash equivalents $ 1.6 Accounts receivable 8.6 Inventory 14.2 Other current assets 0.2 Property, plant and equipment 7.3 Identifiable intangible assets 81.8 Other noncurrent assets 3.7 Total assets $ 117.4 Accounts payable $ 3.0 Other current liabilities 2.0 Other noncurrent liabilities 2.7 Net assets acquired $ 109.7 Goodwill 61.2 Total consideration $ 170.9 The fair value of receivables acquired approximates the gross contractual value. The contractual amount not expected to be collected is immaterial. Acquired inventory was comprised of finished goods and raw materials. The fair value of finished goods was based on net realizable value adjusted for the costs of selling and a reasonable profit margin on selling effort. The fair value of raw materials was determined to approximate book value. Acquired intangible assets include customer relationships, tradenames, and unpatented developed technologies. Intangible assets were valued using the multi-period excess earnings and relief-from-royalty methods, both forms of the income approach which considers a forecast of future cash flows generated from the use of each asset. The following table shows the final fair values assigned to identifiable intangible assets ($ in millions): Fair Value as of March 13, 2020 Weighted-Average Amortization Period (Years) Amortizable intangible assets: Customer relationships $ 63.0 15 Tradenames and other 10.8 15 Developed technology 8.0 10 Total amortizable intangible assets $ 81.8 During the twelve months ended December 31, 2020, the Company recognized $1.1 million in direct and indirect acquisition-related costs for the Tekra acquisition, respectively. Direct and indirect acquisition-related costs were expensed as incurred and are included in the General expense line item in the consolidated statements of income. The amounts of Net sales and Net income of Tekra included in the Company's consolidated income statement from the acquisition date are as follows ($ in millions): March 13, 2020 - December 31, 2020 Net sales $ 77.3 Net income $ 1.9 Pro Forma Financial Information (unaudited) The unaudited supplemental pro forma financial information presents the combined results of operations for the periods presented, as if the Scapa acquisition had occurred on January 1, 2020, and the Tekra acquisition had occurred on January 1, 2019, and therefore both included in the pro forma results for periods presented. The unaudited supplemental pro forma financial information includes the following adjustments related to the Scapa acquisition: amortization of intangible assets and fair value adjustments to inventory, interest expense for the additional indebtedness incurred to complete the acquisition, transaction and severance costs, and applicable tax adjustments based on statutory rates in the jurisdictions where the adjustments occurred. The unaudited supplemental pro forma financial information does not include Tekra net income for the period from January 1 - March 13, 2020, as preparation of this information was deemed impractical due to changes in the ownership structure of the acquired entities prior to the acquisition. For the year ended December 31, 2021, pro forma adjustments caused net income to increase by $10.3 million. For the year ended December 31, 2020 pro forma adjustments led to a $43.8 million decrease in net income. The unaudited supplemental pro forma financial information presented below is not necessarily indicative of consolidated results of operations of the combined business had the Scapa and Tekra acquisitions occurred as of January 1, 2020, and January 1, 2019, respectively, nor is it necessarily indicative of the of the future results of the combined company. Year Ended December 31, 2021 December 31, 2020 Net sales $ 1,570.6 $ 1,456.8 Net income (loss) (1) $ 101.2 $ (20.8) (1) Unaudited supplemental pro forma financial information includes the impact of restructuring and the impairment of goodwill and intangible assets totaling $71.1 million on Scapa net income for the twelve months ended December 31, 2020.

Accounts Receivable

Accounts Receivable	12 Months Ended
	Dec. 31, 2021
Receivables [Abstract]
Accounts Receivable	Accounts Receivable Accounts receivable, net are summarized as follows ($ in millions): December 31, 2021 2020 Trade receivables $ 208.9 $ 130.9 Business tax credits, including VAT 7.8 4.0 Hedge contracts receivable 0.4 0.3 Other receivables 22.3 14.4 Less allowance for doubtful accounts and sales discounts (1.4) (1.1) Total accounts receivable, net $ 238.0 $ 148.5

Inventories

Inventories	12 Months Ended
	Dec. 31, 2021
Inventory Disclosure [Abstract]
Inventories	Inventories Inventories are valued at the lower of cost (using the first-in, first-out and weighted average methods) or market. The Company's costs included in inventory primarily include resins, pulp, chemicals, direct labor, utilities, maintenance, depreciation, finishing supplies and an allocation of certain overhead costs. Machine start-up costs or abnormal machine shutdowns are expensed in the period incurred and are not reflected in inventory. The definition of market value, with respect to all inventories, is net realizable value. The Company reviews inventories at least quarterly to determine the necessity of write-offs for excess, obsolete or unsalable inventory. The Company estimates write-offs for inventory obsolescence and shrinkage based on its judgment of future realization. These reviews require the Company to assess customer and market demand. During the years 2021, 2020, and 2019, there were no material inventory write-offs. The following schedule details inventories by major class ($ in millions): December 31, 2021 2020 Raw materials $ 113.4 $ 65.3 Work in process 41.9 23.2 Finished goods 95.7 83.5 Supplies and other 8.5 7.7 Inventories $ 259.5 $ 179.7

Property, Plant and Equipment

Property, Plant and Equipment	12 Months Ended
	Dec. 31, 2021
Property, Plant and Equipment [Abstract]
Property, Plant and Equipment	Property, Plant and Equipment Property, plant and equipment are stated at cost, less accumulated depreciation. Interest is capitalized as a component of the cost of construction for large projects. Expenditures for betterments are capitalized whereas normal repairs and maintenance are expensed as incurred. Property, other than land, is depreciated on a straight-line basis for financial reporting purposes. When property is sold or retired, the cost of the property and the related accumulated depreciation are removed from the balance sheet, and any gain or loss on the transaction is normally included in cost of products sold. Property, plant and equipment (and related depreciable lives) consisted of the following ($ in millions): December 31, 2021 2020 Land and improvements $ 31.6 $ 13.6 Buildings and improvements (20 to 40 years or remaining life of relevant lease) 194.5 144.0 Machinery and equipment (5 to 20 years) 739.8 524.4 Construction in progress 32.6 23.1 Gross property, plant and equipment 998.5 705.1 Less: Accumulated depreciation 534.6 366.1 Property, plant and equipment, net $ 463.9 $ 339.0

Joint Ventures

Joint Ventures	12 Months Ended
	Dec. 31, 2021
Equity Method Investments and Joint Ventures [Abstract]
Joint Ventures	Joint VenturesThe Company has two joint ventures with China National Tobacco Corporation, or CNTC. CNTC is the principal operating company under China’s State Tobacco Monopoly Administration. CNTC and the Company’s subsidiary, Schweitzer-Mauduit International China, Limited, or SM-China, each own 50% of each of the joint ventures. The paper joint venture China Tobacco Mauduit (Jiangmen) Paper Industry Co. LTD, or CTM, produces tobacco-related papers in China. The second joint venture China Tobacco Schweitzer (Yunnan) Reconstituted Tobacco Co. LTD, or CTS, produces reconstituted tobacco leaf products. The joint ventures pay to each the Company and CNTC sales-based royalties and management fees, of which SWM recognized $2.7 million, $2.0 million, and $2.1 million in 2021, 2020 and 2019, respectively, in Other (expense) income, net in the consolidated statements of income.The Company uses the equity method to account for its ownership interest in both joint ventures. At December 31, 2021 and 2020, the Company’s equity investment in the joint ventures was $64.6 million and $59.3 million, respectively. The Company’s share of the net income was included in Income from equity affiliates, net of income taxes within the consolidated statements of income. We evaluate our equity method investments for impairment when events or changes in circumstances indicate, in our judgment, that the carrying value of such investment may have experienced an other than temporary decline in value.  When evidence of loss in value has occurred, we compare the estimated fair value of the investment to the carrying value of the investment to determine whether impairment has occurred. We assess the fair value of our equity method investment using commonly accepted techniques, and may use more than one method, including, but not limited to, internally developed analysis and analysis of external data. If the estimated fair value is less than the carrying value and we consider the decline in value to be other than temporary, the excess of the carrying value over the estimated fair value is recognized in the consolidated financial statements as an impairment.

Goodwill

Goodwill	12 Months Ended
	Dec. 31, 2021
Goodwill and Intangible Assets Disclosure [Abstract]
Goodwill	Goodwill The Company evaluates goodwill for impairment at least annually during the fourth quarter. The annual tests during the fourth quarters of 2021, 2020 and 2019 resulted in no impairment. Each of the Company's two reportable segments, AMS and EP, have goodwill. There are no accumulated impairment losses in the AMS segment as of December 31, 2021. The EP segment has recorded $2.7 million in accumulated impairment losses in previous years. The changes in the carrying amount of goodwill for each reportable segment were as follows ($ in millions): Advanced Materials & Structures Engineered Papers Total Goodwill as of December 31, 2019 $ 332.5 $ 4.9 $ 337.4 Goodwill acquired during the year 61.2 — 61.2 Foreign currency translation adjustments 4.7 0.4 5.1 Goodwill as of December 31, 2020 $ 398.4 $ 5.3 $ 403.7 Goodwill acquired during the year 250.4 — 250.4 Foreign currency translation adjustments (5.4) (0.4) (5.8) Goodwill as of December 31, 2021 $ 643.4 $ 4.9 $ 648.3

Intangible Assets

Intangible Assets	12 Months Ended
	Dec. 31, 2021
Goodwill and Intangible Assets Disclosure [Abstract]
Intangible Assets	Intangible Assets The gross carrying amount and accumulated amortization for intangible assets which are in our AMS segment consisted of the following ($ in millions): December 31, 2021 Gross Accumulated Net Amortized Intangible Assets Customer relationships $ 541.7 $ 119.2 $ 422.5 Developed technology 74.6 20.7 53.9 Trade names 18.9 2.7 16.2 Non-compete agreements 2.9 2.5 0.4 Patents 1.5 0.6 0.9 Total $ 639.6 $ 145.7 $ 493.9 Unamortized Intangible Assets Trade names $ 20.0 $ — $ 20.0 December 31, 2020 Gross Accumulated Net Amortized Intangible Assets Customer relationships $ 343.9 $ 89.7 $ 254.2 Developed technology 42.4 14.2 28.2 Trade names 11.7 1.4 10.3 Non-compete agreements 2.9 2.4 0.5 Patents 1.5 0.5 1.0 Total $ 402.4 $ 108.2 $ 294.2 Unamortized Intangible Assets Trade names $ 20.5 $ — $ 20.5 Amortization expense of intangible assets w as $39.7 million, $24.6 million and $20.3 million for the years ended December 31, 2021, 2020 and 2019, respectively. Finite-lived intangibles in the AMS segment are expensed using the straight-line amortization method. The following table shows the estimated aggregate amortization expense for the next five years ($ in millions): For the year ending December 31, Estimated Amortization Expense 2022 $ 44.5 2023 44.5 2024 44.2 2025 43.4 2026 43.4

Other Assets

Other Assets	12 Months Ended
	Dec. 31, 2021
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]
Other Assets	Other Assets Other assets consisted of the following ($ in millions): December 31, 2021 2020 Capitalized software costs, net of accumulated amortization $ 13.9 $ 12.9 Grantor trust assets 21.6 18.0 Net pension assets 26.3 9.3 Long-term supplies inventory 4.9 6.6 Operating lease assets 25.1 19.8 Other assets 9.3 2.6 Total $ 101.1 $ 69.2 The Company's ICMS credits in Brazil are included within Other assets and are fully reserved. These credits do not expire. The Company is exploring other actions to utilize the credits. Charges and credits associated with normal ongoing activity are included in Cost of products sold in the Consolidated Statements of Income. Future material changes as a result of new legislation or a change in our operations will be reported separately.

Restructuring and Impairment Ac

Restructuring and Impairment Activities	12 Months Ended
	Dec. 31, 2021
Restructuring and Related Activities [Abstract]
Restructuring and Impairment Activities	Restructuring and Impairment Activities The Company incurred restructuring and impairment expenses of $10.1 million, $11.9 million, and $3.7 million in the years ended December 31, 2021, 2020 and 2019, respectively. In the EP segment, restructuring and impairment expenses were $8.2 million, $11.3 million, and $2.6 million during the years ended December 31, 2021, 2020 and 2019, respectively. During the third quarter of 2021, we announced plans to close the Winkler, Manitoba facility in Canada. The decision was part of our ongoing manufacturing optimization efforts. Manufacturing at this facility ceased during December of 2021. As a result of this decision, $0.8 million of restructuring and impairment expense was recognized during the year ended December 31, 2021, related to severance and other accruals. During the year ended December 31, 2021, we also recorded $0.7 million of other restructuring related charges in Cost of products sold, including the write down of certain inventories to net realizable value and the acceleration of depreciation of machinery and equipment due to the change in the estimated lives of these assets. During the third quarter of 2020, we announced plans to shut down the Spotswood, New Jersey facility and shift the production of paper made there to other SWM facilities. This decision was part of our ongoing manufacturing optimization efforts and involved the co-development of a new paper production technology with one of the Company’s key customers. Production of paper at this facility ceased as of December 31, 2020. As a result of this decision, $4.7 million and $6.7 million of restructuring and impairment expense was recognized in the year ended December 31, 2021 and 2020, respectively. In the year ended December 31, 2021, restructuring and impairment expenses related to costs associated with closing the facility and preparing it for sale, medical benefits and other accruals. Restructuring and impairment expense in the year ended December 31, 2020 related to severance and other accruals. In the year ended December 31, 2020, we also recorded $4.9 million of other restructuring related charges in Cost of products sold, of which, $2.0 million was to write-down the value of certain spare parts and consignment inventories to estimated net realizable value and $2.9 million resulted from the acceleration of depreciation and amortization for machinery and equipment due to the change in the estimated lives of these assets driven by the decision to shut down the facility. The Spotswood site was sold on December 9, 2021, for total proceeds of $34.4 million, and the Company recorded a net gain of $35.2 million including sales from other miscellaneous remaining assets which is included in Other income (expense), net. In addition to restructuring costs relating to the Spotswood and Winkler facilities, the EP segment recognized $2.7 million in the year ended December 31, 2021, related to severance accruals for employees at manufacturing facilities, primarily in France. In 2020 and 2019, restructuring and impairment expenses in the EP segment consisted of $4.6 million and $2.6 million, respectively, relating to severance accruals at our other manufacturing facilities, primarily in France. These restructuring charges relate to ongoing cost optimization initiatives to remain competitive within the EP segment. The cost optimization initiative project started in 2019 is expected to be completed in 2022. The EP segment has recognized $11.9 million of restructuring charges cumulatively through December 31, 2021, related to this project. The Company expects to record additional restructuring and impairment costs in the EP segment during 2022 of approximately $1.5 million relating to the closing of the Winkler, Manitoba facility for severance, settlement of post-retirement benefit obligations and retention. In the AMS segment, the Company incurred $1.9 million, $0.5 million, and $1.1 million in restructuring and impairment expenses during the years ended December 31, 2021, 2020, and 2019, respectively. In 2021, restructuring and impairment expense primarily related to the impairment of non-productive manufacturing equipment and severance accruals. Restructuring and impairment expense for the year ended December 31, 2020 related to severance accruals. Restructuring and impairment expense for the year ended December 31, 2019, consisted of impairment charges at our U.S. and Chinese manufacturing facilities. The following table summarizes total restructuring and related charges: For the Years Ended December 31, 2021 2020 2019 Restructuring and impairment expense: Severance $ 3.6 $ 11.6 $ 2.6 Other 4.9 0.3 1.1 Asset impairment 1.6 — — Total restructuring and impairment expense $ 10.1 $ 11.9 $ 3.7 Other restructuring related charges - Cost of products sold Accelerated depreciation and amortization 0.5 2.9 — Spare parts and consignment inventory write-down to estimated net realizable value 0.2 2.0 — Total other restructuring related charges - Cost of products sold $ 0.7 $ 4.9 $ — Total restructuring and impairment expense and other restructuring related charges $ 10.8 $ 16.8 $ 3.7 Restructuring liabilities were classified within Accrued expenses and Other Liabilities in each of the Consolidated Balance Sheets as of December 31, 2021, and 2020. Changes in the restructuring liabilities, substantially all of which are employee-related, are summarized as follows ($ in millions): 2021 2020 Balance at beginning of year $ 7.4 $ 0.5 Accruals for announced programs 4.7 11.9 Cash payments (5.7) (5.2) Exchange rate impacts (0.2) 0.2 Balance at end of period $ 6.2 $ 7.4

Debt

Debt	12 Months Ended
	Dec. 31, 2021
Debt Disclosure [Abstract]
Debt	Debt Total debt, net of debt issuance costs, is summarized in the following table ($ in millions): December 31, December 31, Revolving credit agreement - U.S. dollar borrowings $ 393.0 $ 50.0 Term loan A facility 193.5 195.5 Term loan B facility 348.2 — 6.875% senior unsecured notes due October 1, 2026, net of discount of $5.2 million and $6.1 million as of December 31, 2021 and 2020, respectively 344.8 343.9 French employee profit sharing 4.1 5.0 Finance lease obligations 2.8 3.5 Debt issuance costs (16.1) (4.6) Total debt 1,270.3 593.3 Less: Current debt (3.2) (2.8) Long-term debt $ 1,267.1 $ 590.5 Credit Facility On September 25, 2018, the Company entered into a $700.0 million credit agreement (the “Credit Agreement”), which replaced the Company’s previous senior secured credit facilities and provides for a five-year $500.0 million revolving line of credit (the “Revolving Credit Facility”) and a seven-year $200.0 million bank term loan facility (the “Term Loan A Facility”). Subject to certain conditions, including the absence of a default or event of default under the Credit Agreement, the Company may request incremental loans to be extended under the Revolving Credit Facility or as additional Term Loan Facilities so long as the Company is in pro forma compliance with the financial covenants set forth in the Credit Agreement and the aggregate of such increases does not exceed $400.0 million. On February 10, 2021, we amended our Credit Agreement to, among other things, add a new seven-year $350 million Term Loan B Facility (the “Term Loan B Facility”) and to decrease the incremental loans that may be extended at the Company’s request to $250 million. The Credit Agreement was further amended effective February 22, 2022 to adjust the step-down schedule for the maximum net debt to EBITDA ratio. See Note 25. Subsequent Event, of the Notes to Consolidated Financial Statements for additional information about the amendment. Borrowings under the Revolving Credit Facility currently bear interest, at the Company’s option, at either (i) 2.25% in excess of LIBOR or (ii) 1.25% in excess of an alternative base rate. Borrowings under the Term Loan A Facility currently bear interest, at the Company’s option, at either (i) 2.50% in excess of LIBOR or (ii) 1.50% in excess of an alternative base rate. The Term Loan amortizes at the rate of 1.0% per year and will mature on September 25, 2025. Any borrowings under the Term Loan B Facility will bear interest, at the Company's option, at either (i) 3.75% in excess of a reserve adjusted LIBOR rate (subject to a minimum floor of 0.75% or (ii) 2.75% in excess of an alternative base rate. Under the terms of the amended Credit Agreement, the Company is required to maintain certain financial ratios and comply with certain financial covenants, including maintaining a net debt to EBITDA ratio, as defined in the amended Credit Agreement, calculated on a trailing four fiscal quarter basis, not greater than 5.50x and an interest coverage ratio, also as defined in the amended Credit Agreement, of not less than 3.00x. The net debt to EBITDA ratio will decrease over the course of 24 months, returning to 4.50x effective as of June 30, 2023. In addition, borrowings and loans made under the amended Credit Agreement are secured by substantially all of the Company’s and the guarantors’ personal property, excluding certain customary items of collateral, and will be guaranteed by the Company’s existing and future wholly-owned direct material domestic subsidiaries and by SWM Luxembourg. Indenture for 6.875% Senior Unsecured Notes Due 2026 On September 25, 2018, the Company closed a private offering of $350.0 million of 6.875% senior unsecured notes due 2026 (the “Notes”). The Notes were sold in a private placement in reliance on Rule 144A and Regulation S under the Securities Act of 1933, as amended, pursuant to a purchase agreement between the Company, certain subsidiaries of the Company and J.P. Morgan Securities LLC, as representative of the initial purchasers. The Notes are guaranteed on a senior unsecured basis by each of the Company’s existing and future wholly-owned subsidiaries that is a borrower under or that guarantees obligations under the Credit Agreement or that guarantees certain other indebtedness, subject to certain exceptions. The Notes were issued pursuant to an Indenture, dated as of September 25, 2018 (the “Indenture”), by and among the Company, the guarantors listed therein and Wilmington Trust, National Association, as trustee. The Indenture provides that interest on the Notes will accrue from September 25, 2018, and is payable semi-annually in arrears on April 1 and October 1 of each year, beginning on April 1, 2019, and the Notes mature on October 1, 2026. The Company may redeem some or all of the Notes at any time on or after October 1, 2021, at the redemption prices set forth in the Indenture, together with accrued and unpaid interest, if any, to, but excluding, the redemption date. If the Company sells certain assets or consummates certain change of control transactions, the Company will be required to make an offer to repurchase the Notes, subject to certain conditions. The Indenture contains certain covenants that, among other things, limit the Company’s ability and the ability of its restricted subsidiaries to incur additional indebtedness, make certain dividends, repurchase Company stock or make other distributions, make certain investments, create liens, transfer, or sell assets, merge or consolidate and enter into transactions with the Company’s affiliates. Such covenants are subject to a number of exceptions and qualifications set forth in the Indenture. The Indenture also contains certain customary events of default, including failure to make payments in respect of the principal amount of the Notes, failure to make payments of interest on the Notes when due and payable, failure to comply with certain covenants and agreements and certain events of bankruptcy or insolvency. The Company was in compliance with all of its covenants under the Indenture at December 31, 2021. As of December 31, 2021, the average interest rate was 2.38% on outstanding Revolving Credit Facility borrowings, 2.63% on outstanding Term Loan A Facility borrowings, and 4.50% on outstanding Term Loan B Facility borrowings. The effective rate on the 6.875% senior unsecured notes due 2026 was 7.248%. The weighted average effective interest rate on the Company's debt facilities, including the impact of interest rate hedges, was approximately 4.04% and 4.02% for the year ended December 31, 2021, and 2020, respectively. French Employee Profit Sharing At both December 31, 2021, and 2020, long-term debt other than the Amended Credit Agreement primarily consisted of obligations of the French operations related to government-mandated profit sharing. Each year, representatives of the workers at each of the French businesses can make an election for the profit sharing amounts from the most recent year ended to be invested in a financial institution or with their respective employer. To the extent that funds are invested with the Company, these amounts bear interest at 0.20% at both December 31, 2021 and 2020, and are generally payable in the fifth year subsequent to the year in which the profit sharing is accrued. Bank Overdrafts The Company also had bank overdraft facilities of $1.8 million and $6.7 million, at December 31, 2021 and 2020, respectively, of which none was outstanding at either December 31, 2021 or 2020. Interest is incurred on outstanding amounts at market rates, which were 0.55% and 0.26%, respectively, at December 31, 2021 and 2020. No commitment fees are paid on the unused portion of these facilities. Rate Swap Agreements From time to time, the Company enters into interest rate swap transactions to manage the Company's interest rate risk and cross-currency swaps designated as a hedge of a portion of the Company's net investment in certain Euro-denominated subsidiaries. See Note 15. Derivatives for additional information. Principal Repayments Under the Credit Agreement, the Company selects an "interest period" for each of its borrowings from the Revolving Credit Facility. The Company can repay such borrowings and borrow again at a subsequent date if it chooses to do so, providing it flexibility and efficient use of any excess cash. The Company currently has the intent and ability to allow its debt balances to remain outstanding and expects to continue to file notices of continuation related to its borrowings outstanding at December 31, 2021 such that those amounts are not expected to be repaid prior to the September 2023 expiration of the Revolving Credit Facility. Following are the expected maturities for the Company's debt obligations as of December 31, 2021 ($ in millions): 2022 $ 7.2 2023 399.7 2024 6.3 2025 192.5 2026 349.5 Thereafter 331.2 Total $ 1,286.4 Fair Value of Debt At December 31, 2021 and 2020, the fair market value of the Company's 6.875% senior unsecured notes was $365.8 million and $371.0 million, respectively. The fair market value for the senior unsecured notes was determined using quoted market prices, which are directly observable Level 1 inputs. The fair market value of all other debt as of December 31, 2021, and 2020 approximated the respective carrying amounts as the interest rates are variable and based on current market indices. Debt Issuance Costs In conjunction with the amendment to our Credit Agreement on February 10, 2021, the Company capitalized approximately $14.6 million of debt issuance costs during the year ended December 31, 2021, which will be amortized over the term of the various facilities under the amended Credit Agreement. As of December 31, 2021, and 2020, the Company's total deferred debt issuance costs, net of accumulated amortization, were $16.1 million and $4.6 million, respectively. Amortization expense of $3.1 million and $1.3 million was recorded during the years ended December 31, 2021, and 2020, respectively, and has been included as a component of Interest expense in the accompanying Consolidated Statements of Income. Following is the expected future amortization of the Company's deferred debt issuance costs as of December 31, 2021 ($ in millions): 2022 $ 3.9 2023 3.5 2024 2.3 2025 2.2 2026 1.9 Thereafter 2.3 Total $ 16.1

Derivatives

Derivatives	12 Months Ended
	Dec. 31, 2021
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Derivatives	Derivatives In the normal course of business, the Company is exposed to foreign currency exchange rate risk and interest rate risk on its variable-rate debt. To manage these risks, the Company utilizes a variety of practices including, where considered appropriate, derivative instruments. The Company has no derivative instruments for trading or speculative purposes or derivatives with credit risk-related contingent features. All derivative instruments used by the Company are either exchange traded or are entered into with major financial institutions in order to reduce credit risk and risk of nonperformance by third parties. The fair values of the Company’s derivative instruments are determined using observable inputs and are considered Level 2 assets or liabilities. The Company utilizes currency forward, swap and, to a lesser extent, option contracts to selectively hedge its exposure to foreign currency risk when it is practical and economical to do so. The use of these contracts minimizes transactional exposure to exchange rate changes. We designate certain of our foreign currency hedges as cash flow hedges. Changes in the fair value of cash flow hedges are reported as a component of Accumulated other comprehensive loss and reclassified into earnings when the forecasted transaction affects earnings. For foreign exchange contracts not designated as cash flow hedges, changes in the contracts’ fair values are recorded to net income each period. The Company selectively hedges its exposure to interest rate increases on variable-rate, long-term debt when it is practical and economical to do so. Changes in the fair value of interest rate contracts considered cash flow hedges are reported as a component of Accumulated other comprehensive loss and reclassified into earnings when the forecasted transaction affects earnings. The Company also uses cross currency swap contracts to selectively hedge its exposure to foreign currency related changes in our net investments in certain foreign operations. We designate these cross currency swap contracts as net investment hedges. Changes in the fair value of these hedges are deferred within the foreign currency translation component of Accumulated other comprehensive income and reclassified into earnings when the foreign investment is sold or substantially liquidated. On June 30, 2021, the Company entered into pay-fixed, receive-variable interest rate swaps with a maturity date of December 31, 2027. The instruments hedge a portion of the Company’s debt facility through the Credit Agreement. Under the terms of the interest rate swaps, SWM will pay a fixed amount of interest each period in an amount equal to 0.974% and 1.4135% on notional amounts of $260.0 million and $140.0 million, respectively, and receive interest payments monthly in an amount equal to the One-Month USD-LIBOR rate on the notional amount. The notional amount will reduce throughout the term of the swap as follows: • June 30, 2021 - December 29, 2023 $400.0 million notional • December 29, 2023 - December 31, 2024 $350.0 million notional • December 31, 2024 - December 31, 2025 $300.0 million notional • December 31, 2025 - December 31,2026 $200.0 million notional • December 31, 2026 - December 31, 2027 $190.0 million notional On September 11, 2019, the Company entered into a pay-fixed, receive-variable interest rate swap with a maturity date of January 31, 2027. The instrument is a hedge on a portion of the Company’s debt facility through the Credit Agreement. Under the terms of the interest rate swap, SWM will pay a fixed amount of interest each period in an amount equal to 1.724% on a notional amount of $185 million and receive interest payments monthly in an amount equal to the One-Month USD-LIBOR rate on the notional amount. The notional amount will reduce throughout the term of the swap as follows: • September 13, 2019 - December 31, 2020 $185 million notional • December 31, 2020 - December 31, 2021 $150 million notional • December 31, 2021 - January 31, 2027 $100 million notional The terms of the interest rate swaps mirror the terms of the underlying debt, including timing of the payments and interest rates. On January 29, 2019, the Company entered into a cross-currency swap designated as a hedge of a portion of the Company's net investment in certain Euro-denominated subsidiaries. The terms of the cross-currency swap provide for an exchange of principal on a notional amount of $75 million swapped to €66.0 million at maturity. On September 30, 2021, the term of the cross-currency swap was extended until October 1, 2031. The Company will receive from our swap counterparty U.S. dollar interest at a fixed rate of 6.875% per annum and pay to our swap counterparty Euro interest at a fixed rate of 5.117% per annum on €66.0 million. On September 11, 2019, the Company entered into a new pay-EUR, receive-USD cross-currency swap arrangement with a major financial institution having a maturity date of April 1, 2023. The terms of the cross-currency swap provide for an exchange of principal on a notional amount of $100 million swapped to €90.9 million at maturity. Under the terms of the new cross-currency swap, SWM will pay a fixed amount of Euro-denominated interest at a rate of 5.638% semiannually and receive USD denominated payments at a rate of 6.875% semiannually on the notional amount of the swap. On October 1, 2021, the Company entered into a cross-currency swap designated as a hedge of a portion of the Company's net investment in certain Euro-denominated subsidiaries. The terms of the cross-currency swap provide for an exchange of principal on a notional amount of $75 million swapped to €64.7 million at maturity. The Company will receive from our swap counterparty U.S. dollar interest at a fixed rate of 6.875% per annum and pay to our swap counterparty Euro interest at a fixed rate of 5.4750% per annum. The cross-currency swap will mature on October 1, 2031. On November 23, 2021, the Company entered into cross-currency swaps designated as a hedge of a portion of the Company's net investment in certain Euro-denominated subsidiaries. The terms of the cross-currency swaps provide for an exchange of principal on a U.S. dollar notional amount swapped to Euro at maturity, in addition to receipt of fixed rate U.S. dollar denominated interest and payment of fixed rate Euro interest to the swap counterparty. Each of the swaps expires on October 1, 2031. The notional amounts and interest rates are as follows. • $85 million notional swapped to €75.7 million at maturity, receive U.S. dollar interest at a fixed rate of 6.875% and pay Euro interest at a fixed rate of 4.9605% per annum. • $85 million notional swapped to €75.7 million at maturity, receive U.S. dollar interest at a fixed rate of 6.875% and pay Euro interest at a fixed rate of 5.0755% per annum. • $65 million notional swapped to €57.9 million at maturity, receive U.S. dollar interest at a fixed rate of 6.875% and pay Euro interest at a fixed rate of 5.1605% per annum. • $65 million notional swapped to €57.9 million at maturity, receive U.S. dollar interest at a fixed rate of 6.875% and pay Euro interest at a fixed rate of 5.1405% per annum. The following table presents the fair value of asset and liability derivatives and the respective balance sheet locations at December 31, 2021 ($ in millions): Asset Derivatives Liability Derivatives Balance Sheet Fair Balance Sheet Fair Derivatives Designated as Hedges: Foreign exchange contracts Accounts receivable $ 1.6 Accrued expenses $ — Foreign exchange contracts Other assets — Other liabilities 9.8 Interest rate contracts Accounts receivable 0.2 Accrued expenses — Interest rate contracts Other assets 3.3 Other liabilities 2.1 Total derivatives designated as hedges $ 5.1 $ 11.9 Derivatives Not Designated as Hedges: Foreign exchange contracts Accounts receivable $ 0.2 Accounts payable $ 0.6 Total derivatives not designated as hedges 0.2 0.6 Total derivatives $ 5.3 $ 12.5 The following table presents the fair value of asset and liability derivatives and the respective balance sheet locations at December 31, 2020 ($ in millions): Asset Derivatives Liability Derivatives Balance Sheet Fair Balance Sheet Fair Derivatives Designated as Hedges: Foreign exchange contracts Accounts receivable $ 0.9 Accrued expenses $ 11.0 Foreign exchange contracts Other assets — Other liabilities 12.3 Interest rate contracts Accounts receivable 0.3 Accrued expenses — Interest rate contracts Other Assets — Other liabilities 7.8 Total derivatives designated as hedges $ 1.2 $ 31.1 Total derivatives $ 1.2 $ 31.1 The following table provides the gross effect that derivative instruments in cash flow hedging relationships had on accumulated other comprehensive income (loss), or AOCI, and results of operations ($ in millions): Derivatives Designated as Cash Flow Hedging Relationships Unrealized Gain (Loss) Recognized in AOCI on Derivatives, Net of Tax for the Year Ended December 31, Location of (Loss) Gain Reclassified from AOCI (Loss) Gain Reclassified 2021 2020 2019 2021 2020 2019 Derivatives designated as cash flow hedge Foreign exchange contracts $ (0.2) $ (5.3) $ (0.7) Net sales $ (1.7) $ (3.4) $ (1.2) Foreign exchange contracts 1.2 1.4 (2.3) Other income (expense) , net (0.2) 1.4 (1.9) Interest rate contracts 5.1 (7.7) 4.6 Interest expense (3.2) — 7.6 Derivatives designated as investment hedge Foreign exchange contracts 6.6 (14.2) — Other income (expense), net — — — Total $ 12.7 $ (25.8) $ 1.6 $ (5.1) $ (2.0) $ 4.5 The Company's designated derivative instruments are highly effective. As such, related to the hedge ineffectiveness or amounts excluded from hedge effectiveness testing, there were no gains or losses recognized immediately in income for the years ended December 31, 2021, 2020 or 2019, other than those related to the cross-currency swap, noted below. The Company’s cross currency swaps were designated with terms based on the spot rate of the EUR. Future changes in the components related to the spot change on the notional will be recorded in OCI and remain there until the hedged subsidiaries are substantially liquidated. All coupon payments are recorded in earnings and the initial value of excluded components currently recorded in Accumulated other comprehensive loss as an unrealized translation adjustment are amortized to interest expense over the remaining term of the swap. For the year ended December 31, 2021, 2020, and 2019, respectively, $6.3 million, $6.5 million and $1.1 million was recognized in income as derivative amoun ts excluded from effectiveness testing as Interest expense. The following table provides the effect derivative instruments not designated as hedging instruments had on net income ($ in millions): Derivatives Not Designated as Cash Flow Hedging Instruments Amount of Gain / (Loss) Recognized in Other Income / Expense 2021 2020 2019 Foreign exchange contracts $ (2.2) $ 0.1 $ 1.1 Total $ (2.2) $ 0.1 $ 1.1

Accrued Expenses

Accrued Expenses	12 Months Ended
	Dec. 31, 2021
Payables and Accruals [Abstract]
Accrued Expenses	Accrued Expenses Accrued expenses consisted of the following ($ in millions): December 31, 2021 2020 Accrued salaries, wages and employee benefits $ 42.0 $ 48.7 Other accrued expenses 67.3 52.2 Total $ 109.3 $ 100.9

Income Taxes

Income Taxes	12 Months Ended
	Dec. 31, 2021
Income Tax Disclosure [Abstract]
Income Taxes	Income Taxes For financial reporting purposes, income before income taxes includes the following components ($ in millions): For the Years Ended December 31, 2021 2020 2019 U.S. $ 28.5 $ 29.1 $ 60.0 Foreign 44.6 68.2 36.9 Total $ 73.1 $ 97.3 $ 96.9 An analysis of the provision (benefit) for income taxes from continuing operations follows ($ in millions): For the Years Ended December 31, 2021 2020 2019 Current income taxes: U.S. federal $ 5.0 $ 7.3 $ 8.1 U.S. state 0.7 1.5 0.8 Foreign 11.9 14.8 9.7 17.6 23.6 18.6 Deferred income taxes: U.S. federal 7.5 (5.3) 2.3 U.S. state (0.2) 1.0 (1.9) Foreign (34.3) (0.9) (3.8) (27.0) (5.2) (3.4) Total $ (9.4) $ 18.4 $ 15.2 A reconciliation of income taxes computed at the U.S. Federal statutory income tax rate to the provision for income taxes is as follows ($ in millions): For the Years Ended December 31, 2021 2020 2019 Amount Percent Amount Percent Amount Percent Tax provision at U.S. statutory rate $ 15.4 21.0 % $ 20.4 21.0 % $ 20.3 21.0 % Foreign income tax rate differential 2.9 4.0 2.7 2.7 0.6 0.5 Income from passthrough entities 4.2 5.7 2.3 2.3 1.7 1.6 Branch earnings (0.9) (1.2) — — — — Global intangible low tax inclusion 4.7 6.4 4.8 4.8 (0.1) (0.1) Subpart F income 1.0 1.3 0.6 0.6 1.0 1.0 State income tax, net of federal benefit 0.5 0.7 1.8 1.8 (0.2) (0.2) Adjustments to valuation allowances 57.0 78.0 (3.9) (3.9) (3.7) (3.8) Capital loss carryforward (86.5) (118.3) — — — — Transition tax — — — — (0.7) (0.6) Other tax credits (1.4) (2.0) (0.8) (0.8) (2.0) (2.1) Foreign tax credits (11.0) (15.0) (9.9) (10.0) (3.5) (3.6) Other foreign operational taxes 3.0 4.1 3.5 3.5 2.9 3.0 Base erosion minimum tax amount 2.4 3.3 — — — — Non-deductible compensation 1.9 2.6 0.4 0.4 1.1 1.1 Other, net (2.6) (3.5) (3.5) (3.5) (2.2) (2.1) Provision for income taxes $ (9.4) (12.9) % $ 18.4 18.9 % $ 15.2 15.7 % A benefit for income taxes of $9.4 million, a provision for income taxes of $18.4 million and $15.2 million in the years ended December 31, 2021, 2020, and 2019, respectively, resulted in an effective tax rate of (12.9)%, 18.9%, and 15.7% in 2021, 2020, and 2019, respectively. The Company’s effective tax rates differ from the statutory federal income tax rate of 21% due primarily to varying tax rates in foreign jurisdictions, the relative amounts of income we earn in those jurisdictions and adjustments to valuation allowances. Prior to the passage of the Tax Act, the Company asserted that substantially all of the undistributed earnings of its foreign subsidiaries were considered indefinitely reinvested and accordingly, no deferred taxes were provided. Due to the Tax Act, the Company has significant previously taxed earnings and profits from its foreign subsidiaries, as a result of transition tax, that are generally able to be repatriated free of U. S. federal tax. In addition, future earnings of foreign subsidiaries are generally expected to be able to be repatriated free of U.S. federal income tax because these earnings were taxed in the U.S. under the GILTI regime or would be eligible for a 100% dividends received deduction. The Company does not assert indefinite reinvestment with respect to earnings generated by foreign subsidiaries to the extent of each controlled foreign corporation's earnings and profits and to the extent of any foreign partnership’s U.S. tax capital accounts. The Company has provided for non-U.S. withholding taxes, U.S. federal tax related to currency movement on previously taxed earnings and profits, and U.S. state taxes on unremitted earnings. Net deferred income tax assets (liabilities) were comprised of the following ($ in millions): December 31, 2021 2020 Deferred Tax Assets Receivable allowances $ 0.9 $ 0.5 Postretirement and other employee benefits 17.1 21.0 Derivatives — 2.5 Net operating loss and tax credit carryforwards 129.6 104.4 Capital loss carryforward 103.1 12.1 Accruals and other liabilities 0.4 0.7 Intangibles — 37.6 Other 12.6 4.4 263.7 183.2 Less: Valuation allowance (232.3) (166.6) Net deferred income tax assets $ 31.4 $ 16.6 Deferred Tax Liabilities Net property, plant and equipment $ (60.3) $ (55.7) Intangibles (31.3) — Investment in subsidiaries (0.6) (3.2) Derivatives (0.3) — Other (0.1) (0.3) Net deferred income tax liabilities $ (92.6) $ (59.2) Total net deferred income tax liabilities $ (61.2) $ (42.6) As of December 31, 2021, the Company had approximately $111.8 million of tax-effected operating loss carryforwards available to further reduce future taxable income in various jurisdictions which will expire on various dates as follows: 2021 2022-2041 $ 26.7 Indefinite 85.1 $ 111.8 In addition, the Company has $103.1 million of tax effected capital loss carryforwards, $96.7 million expire between 2024-2026 and $6.4 million are indefinite lived. The Company also has $8.0 million and $2.2 million of foreign tax credits and state tax credits and that will expire between 2029 – 2030, and 2022 – 2036, respectively. The Company's deferred tax asset valuation allowances are primarily the result of uncertainties regarding the future realization of recorded tax benefits on tax loss, capital loss, and credit carryforwards. The valuation allowance on deferred tax assets as of December 31, 2021, is substantially in the United States and Luxembourg, of $106.9 million and $103.4 million net of a partial valuation allowance release of $35.0 million, respectively. In addition, there is a valuation allowance on ICMS value added tax credits of $4.9 million in Brazil and certain state tax credits of $1.7 million. The Company's assumptions, judgments and estimates relative to the valuation of these net deferred tax assets take into account available positive and negative evidence of realizability, including recent financial performance, the ability to realize benefits of restructuring and other recent actions, projections of the amount and category of future taxable income and tax planning strategies. Actual future operating results and the underlying amount and category of income in future periods could differ from the Company's current assumptions, judgments and estimates. The Company believes that it will generate sufficient future taxable income to realize the tax benefits related to the remaining net deferred tax assets. The following table summarizes the activity related to the Company's unrecognized tax benefits related to income taxes ($ in millions): December 31, 2021 2020 2019 Uncertain tax position balance at beginning of year $ 2.0 $ 1.7 $ 1.1 Increases related to current year tax positions 0.3 0.3 0.6 Decreases related to expiration of statute of limitations (0.7) — — Current year acquisition $ 8.2 $ — $ — Uncertain tax position balance at end of year $ 9.8 $ 2.0 $ 1.7 The liability for unrecognized tax benefits included $5.0 million as of December 31, 2021, that if recognized would impact the Company's effective tax rate. We do not anticipate a material decrease in unrecognized tax benefits by the end of 2022 as a result of a lapse of the statute of limitations and other regulatory filings. The Company's policy with respect to penalties and interest in connection with income tax assessments or related to unrecognized tax benefits is to classify penalties as provision for income taxes and interest as interest expense in its Consolidated Statements of Income. There were no material income tax penalties or interest accrued on current year uncertain tax positions during the years ended December 31, 2021, 2020 and 2019. As it relates to the current year 2021 Scapa acquisition, a liability for $1.8 million of interest and penalties was recorded through purchase accounting to goodwill. The Company files income tax returns, including returns for its subsidiaries, with federal, state, local and foreign jurisdictions. The Company finalized Belgium, Scapa France, and China audits, for the tax years, 2017 – 2018, 2017 – 2019, and 2017-2019, respectively during 2021. All expected impacts have been recorded in 2021 or earlier. We are no longer subject to U.S. federal examinations by the IRS for tax years before 2017. The 2015-2021 tax years remain subject to examination by other major tax jurisdictions.

Postretirement and Other Benefi

Postretirement and Other Benefits	12 Months Ended
	Dec. 31, 2021
Retirement Benefits [Abstract]
Postretirement and Other Benefits	Postretirement and Other Benefits North American Pension and Postretirement Healthcare and Life Insurance Benefits The U.S. operations have defined benefit retirement plans that cover certain full-time employees. Retirement benefits are based on either a cash balance benefit formula or a final average pay formula for certain employees who were "grandfathered" and retained retirement benefits under the terms of the plan prior to its amendment to include a cash balance benefit formula. Benefits related to the U.S. defined benefit and pension plan are frozen for all employees. The U.S. operations also have unfunded healthcare and life insurance benefit plans, or OPEB plans, which cover certain of its retirees through age 65. Some employees who retained benefits under the terms of the Company's plans prior to certain past amendments receive retiree healthcare coverage at rates subsidized by the Company. For other eligible employees, retiree healthcare coverage access is offered at full cost to the retiree. The postretirement healthcare plans include a limit on the Company's share of costs for current and future retirees. The U.S. operations' retiree life insurance plans are noncontributory. The Company's Canadian postretirement benefits liability and U.S. OPEB liability are immaterial and therefore not included in these disclosures. French Pension Benefits In France, employees are covered under a government-administered program. In addition, the Company's French operations sponsor retirement indemnity plans, which pay a lump sum retirement benefit to all of its permanent employees who retire. In addition, the Company's French operations sponsor a supplemental executive pension plan. Plan assets are principally invested in the general asset portfolio of a French insurance company. United Kingdom Pension Benefits In the U.K., the Company has a defined benefit pension plan which holds the assets and liabilities of former U.K. employees. The plan has been closed to new members since 2008 and is wholly funded by the sponsoring employer, Scapa Group Ltd. The assets of the plan are held separately from the Company under Trust and the plan is managed by a professional Trustee. U.S., French, and U.K. Pension Disclosures The U.S., French, and U.K. pension plans accounted for the majority of the Company's total plan assets and total Accumulated Benefit Obligations (ABO) at December 31, 2021. The Company uses a measurement date of December 31 for its pension plans in the United States, U.K., and France. The funded status of these plans as of December 31, 2021 and 2020 was as follows ($ in millions): Pension Benefits U.S. France U.K. 2021 2020 2021 2020 2021 2020 Change in Projected Benefit Obligation, or PBO: PBO at beginning of year $ 125.1 $ 119.9 $ 35.8 $ 31.9 $ — $ — Acquisition (1) 1.9 — 5.4 — 200.1 — Service cost — — 1.6 1.3 — — Interest cost 2.8 3.7 0.1 0.2 2.5 — Actuarial (gain) loss (2.6) 9.7 (2.1) 0.6 4.3 — Participant contributions — — 0.8 0.5 — — Gross benefits paid (8.8) (8.2) (2.7) (1.7) (10.7) — Currency translation effect — — (2.9) 3.0 (3.9) — PBO at end of year $ 118.4 $ 125.1 $ 36.0 $ 35.8 $ 192.3 $ — Change in Plan Assets: Fair value of plan assets at beginning of year $ 134.4 $ 125.8 $ 0.8 $ 1.1 $ — $ — Acquisition(1) — — — — 211.4 — Actual return on plan assets (0.9) 16.8 0.1 — 10.9 — Employer contributions — 1.8 1.2 2.9 — Participant contributions — — 0.1 — — — Gross benefits paid (8.8) (8.2) (2.2) (1.6) (10.8) — Currency translation effect — — (0.1) 0.1 (4.3) — Fair value of plan assets at end of year $ 124.7 $ 134.4 $ 0.5 $ 0.8 $ 210.1 $ — Funded status at end of year $ 6.3 $ 9.3 $ (35.5) $ (35.0) $ 17.8 $ — (1) Amounts attributable to Scapa are included effective April 15, 2021 The PBO, ABO and fair value of pension plan assets for the Company's U.S., U.K., and French defined benefit pension plans as of December 31, 2021 and 2020 as follows ($ in millions): U.S. France U.K. 2021 2020 2021 2020 2021 2020 PBO $ 118.4 $ 125.1 $ 36.0 $ 35.8 192.3 $ — ABO 118.4 125.1 36.0 35.8 192.3 — Fair value of plan assets 124.7 134.4 0.5 0.8 210.1 — As of December 31, 2021, the pre-tax amounts in accumulated other comprehensive income that have not been recognized as components of net periodic benefit cost for the U.S., U.K., and French pension plans are as follows ($ in millions): Pension Benefits U.S. France U.K. Accumulated loss (gain) $ 16.9 $ 11.1 $ (3.5) Prior service credit — (2.0) — Accumulated other comprehensive loss (gain) $ 16.9 $ 9.1 $ (3.5) Actuarial assumptions are used to determine the Company's benefit obligations. The discount rate represents the interest rate used to determine the present value of future cash flows currently expected to be required to settle pension obligations. The discount rate fluctuates from year to year based on current market interest rates for high-quality, fixed- income investments. The Company also evaluates the expected average duration of its pension obligations in determining its discount rate. An assumed long-term rate of compensation increase is also used to determine the PBO. The weighted average assumptions used to determine benefit obligations as of December 31, 2021 and 2020 were as follows: Pension Benefits U.S. France U.K. 2021 2020 2021 2020 2021 2020 Discount rate 2.73 % 2.30 % 0.88 % 0.32 % 1.85 % — % Rate of compensation increase — % — % 2.01 % 1.97 % — % — % Rate of pension increase — % — % — % — % 3.26 % — % The components of net pension benefit costs for U.S., U.K., and French employees during the years ended December 31, 2021, 2020 and 2019 were as follows ($ in millions): U.S. Pension Benefits French Pension Benefits U.K. Pension Benefits 2021 2020 2019 2021 2020 2019 2021 2020 2019 Service cost $ — $ — $ — $ 1.6 $ 1.3 $ 1.0 $ — $ — $ — Interest cost 2.8 3.7 4.6 0.1 0.2 0.4 2.5 — — Expected return on plan assets (3.9) (4.9) (5.8) — (0.1) (0.1) (2.7) — — Amortizations and other 3.2 3.3 2.0 0.8 1.0 0.9 — — — Net periodic benefit cost $ 2.1 $ 2.1 $ 0.8 $ 2.5 $ 2.4 $ 2.2 $ (0.2) $ — $ — Assumptions are used to determine net periodic benefit costs. In addition to the discount rate and rate of compensation increase, which are used to determine benefit obligations, an expected long-term rate of return on plan assets is also used to determine net periodic pension benefit costs. The weighted average assumptions used to determine net periodic benefit costs for the years ended December 31, 2021, 2020 and 2019 were as follows: Pension Benefits U.S. France U.K. 2021 2020 2019 2021 2020 2019 2021 2020 2019 Discount rate 2.31 % 3.20 % 4.29 % 0.88 % 0.53 % 1.28 % 1.95 % — % — % Expected long-term rate of return on plan assets 3.44 % 4.41 % 5.14 % 3.00 % 3.00 % 3.00 % 3.17 % — % — % Rate of compensation increase — % — % — % 2.01 % 1.97 % 1.96 % — % — % — % The Company's investment strategy with respect to its U.S. pension plan assets is to maximize the return on investment of plan assets at an acceptable level of risk and to assure each plans' fiscal health. The target asset allocation varies based on the funded status of the plan in an effort to match the duration of the plan's liabilities to investments in long duration fixed income assets over time. For the year ended December 31, 2021, the target and actual allocation of plan assets were aligned. The Company's investments under the French pension plans are primarily invested as directed by governmental authorities, their contracted providers or the participants without direction from the Company. Investments under the U.K. plan are allocated based on a targeted return, driven by the funded status of the plan. The primary goal of the Company's pension plans is to maintain the highest probability of assuring future benefit payments to participants while providing growth of capital in real terms. To achieve this goal, the investment philosophy is to protect plan assets from large investment losses, particularly over time, while steadily growing the assets in a prudent manner. While there cannot be complete assurance that the objectives will be realized, the Company believes that the likelihood of realizing the objectives are reasonable based upon this investment philosophy. The Company has an investment committee that meets on a periodic basis to review the portfolio returns and to determine asset mix targets. The U.S., U.K., and French pension plans' asset allocations by category at December 31, 2021 and 2020 were as follows: U.S. France U.K. 2021 2020 2021 2020 2021 2020 Asset Category Cash and cash equivalents 1% 1% 11% 36% 1% —% Equity securities* Domestic large cap 2 2 16 30 — — Domestic small cap 1 1 — — — — International 6 6 — — 10 — Fixed income securities 90 90 67 32 87 — Alternative investments** — — 6 2 2 — Total 100% 100% 100% 100% 100% —% * None of the Company's pension plan assets are targeted for investment in SWM stock, except that it is possible that one or more mutual funds held by the plan could hold shares of SWM. ** Investments in this category under the U.S. and U.K. pension plan may include hedge funds and may include real estate under the French pension plan. The Company's pension assets are classified according to an established fair value hierarchy that prioritizes the inputs to valuation techniques used to measure fair value. The hierarchy gives the highest priority to unadjusted quoted prices in active markets for identical assets or liabilities (Level 1 measurement) and the lowest priority to unobservable inputs (Level 3 measurements). A financial instrument's level within the hierarchy is based on the lowest level of any input that is significant to the fair value measurement. The three levels of the fair value hierarchy are described below: Level 1 Unadjusted quoted prices in active markets that are accessible at the measurement date for identical, unrestricted assets or liabilities; Level 2 Quoted prices in markets that are not considered to be active or financial instruments for which all significant inputs are observable, either directly or indirectly; Level 3 Prices or valuations that require inputs that are both significant to the fair value measurement and unobservable. The following table sets forth by level, within the fair value hierarchy, the U.S., French and U.K. pension plans' assets at fair value as of December 31, 2021 ($ in millions): U.S. France U.K. Plan Asset Category Total Other* Level 1 Level 2 Level 3 Total Level 1 Level 2 Total Level 1 Level 2 Cash equivalents $ 1.1 $ — $ 1.1 $ — $ — $ 0.1 $ 0.1 $ — $ 2.5 $ 2.5 $ — Equity securities Domestic large cap 3.7 3.7 — — — 0.1 0.1 — — — — Domestic small cap 1.2 1.2 — — — — — — — — — International 7.4 7.4 — — — — — — 20.8 — 20.8 Fixed income securities US Government securities 43.1 43.1 — — — — — — — — — Corporate bonds 48.4 48.4 — — — — — — 95.2 — 95.2 International bonds 2.1 2.1 — — — — — — 86.6 — 86.6 Other 17.7 17.7 — — — 0.3 — 0.3 3.3 — 3.3 Alternative investments** — — — — — — — — 1.7 — 1.7 Total $ 124.7 $ 123.6 $ 1.1 $ — $ — $ 0.5 $ 0.2 $ 0.3 $ 210.1 $ 2.5 $ 207.6 The following table sets forth by level, within the fair value hierarchy, the U.S. and French pension plans' assets at fair value as of December 31, 2020 ($ in millions): U.S. France Plan Asset Category Total Other* Level 1 Level 2 Level 3 Total Level 1 Level 2 Cash equivalents $ 1.0 $ — $ 1.0 $ — $ — $ 0.3 $ 0.3 $ — Equity securities Domestic large cap 2.7 2.7 — — — 0.2 0.2 — Domestic small cap 1.3 1.3 — — — — — — International 8.2 8.2 — — — — — — Fixed income securities US Government securities 13.9 13.9 — — — — — — Corporate bonds 99.6 99.6 — — — — — — International bonds 1.2 1.2 — — — — — — Other 6.5 6.5 — — — 0.3 — 0.3 Total $ 134.4 $ 133.4 $ 1.0 $ — $ — $ 0.8 $ 0.5 $ 0.3 * Investments held in Mutual Funds are measured at Net Asset Value ("NAV"), as determined by the fund manager, as a practical expedient and not are subject to hierarchy level classification disclosure. ** Alternative investments include ownership interests in shares of registered investment companies. The Company expects the following estimated undiscounted future pension benefit payments for the United States, France and the U.K., which are to be made from pension plan and employer assets, net of amounts that will be funded from retiree contributions, and which reflect expected future service, as appropriate ($ in millions): U.S. France U.K. Pension Pension Pension 2022 $ 8.7 $ 0.4 $ 10.9 2023 8.4 1.3 11.2 2024 8.3 1.0 11.4 2025 8.2 1.7 11.8 2026 8.0 1.3 12.1 2027 - 2031 36.6 14.1 65.3 The Company is not required to contribute during 2022 to its U.S. and French pension plans; although, it may make discretionary contributions dependent on market conditions to remain aligned with its investment policy statement. Contributions to the U.K. pension plan are required. Other Foreign Pension Benefits In Brazil, employees are covered under government-administered programs. Certain employees in the United Kingdom are covered by auto enrollment schemes where employee contributions are compulsory and also have the backing of government administered programs. In Canada and Italy, the employee pension benefits are not material and therefore are not included in the above disclosures. Other Benefits We sponsor a qualified defined contribution plan covering substantially all U.S. employees. Under the plan, the Company matches a portion of employee contributions. The Company's cost under the plan was $4.6 million , $4.0 million, and $3.9 million for the years ended December 31, 2021, 2020 and 2019, respectively. The Company provides U.S. executives, certain other key personnel, and its directors the opportunity to participate in deferred compensation plans. Participating employees can elect to defer a portion of their salaries and certain other compensation. Participating directors can elect to defer their meeting fees, as a cash deferral, as well as their quarterly retainer fees, as deferred stock unit credits. The Company's liability balance under these deferred compensation plans totaled $16.2 million and $14.5 million at December 31, 2021 and 2020, respectively, which were included in the Consolidated Balance Sheets in Other liabilities. In connection with these plans, the Company has a grantor trust into which it has contributed funds toward its future obligations under the various plans (See Note 12. Other Assets). The balance of grantor trust assets totaled $21.6 million and $18.0 million at December 31, 2021 and 2020, respectively, which were included in Other assets in the Consolidated Balance Sheets. These assets are restricted from Company use until all obligations are satisfied.

Stockholders' Equity

Stockholders' Equity	12 Months Ended
	Dec. 31, 2021
Equity [Abstract]
Stockholders' Equity	Stockholders' Equity Restricted Stock Plan In April 2015, the Company adopted a new 2015 Long-term Incentive Plan, or LTIP, which replaced its existing Restricted Stock Plan ("RSP"). The LTIP is intended to promote the Company's long-term financial success by attracting and retaining outstanding executive personnel and to motivate such personnel by means of equity grants. The Compensation Committee of the Company's Board of Directors selects participants and establishes the terms of any grant of restricted stock. The Company's LTIP provides that issuance of restricted stock immediately transfers ownership rights in shares of its Common Stock to the recipient of the grant, including the right to vote the shares and to receive dividends thereon. Other types of stock awards are available under the LTIP, but not currently used. The recipient's continued ownership of and right to freely transfer the restricted stock is subject to such conditions on transferability and to such risks of forfeiture as are established by the Compensation Committee at the time of the grant, which may include continued employment with the Company for a defined period, achievement of specified management performance objectives or other conditions established by the Compensation Committee. The number of shares which may be issued under the LTIP is limited to 5,000,000. Restricted shares outstanding under the RSP have all vested in accordance with the terms of each grant. No further grants of shares will be issued under the RSP. No single participant may be awarded, in the aggregate, more than 750,000 shares during any fiscal year. As of December 31, 2021, 1,188,070 restricted shares had been issued under the Company's restricted LTIP plans, of which 377,729 shares of issued restricted stock were not yet vested and for which $2.3 million in unrecognized compensation expense is expected to be recognized over a weighted average period of 1.1 years. The following table presents restricted stock activity for the years 2021, 2020 and 2019: 2021 2020 2019 # of Shares Weighted Average Fair Value at Date of Grant # of Shares Weighted Average Fair Value at Date of Grant # of Shares Weighted Average Fair Value at Date of Grant Nonvested restricted shares outstanding at January 1 405,299 $ 34.96 221,622 $ 37.08 184,190 $ 40.33 Granted 207,135 39.10 339,454 34.27 155,982 35.62 Forfeited (4,345) 33.37 (36,749) 33.98 (8,869) 41.34 Vested (230,360) 35.71 (119,028) 37.15 (109,681) 40.12 Nonvested restricted shares outstanding at December 31 377,729 $ 36.78 405,299 $ 34.96 221,622 $ 37.08 Restricted Stock Plan Shares During 2021, the Company recognized $3.5 million for 179,873 shares earned under the 2021-2022 award opportunity, $2.1 million of compensation expense earned under the 2020-2021 award opportunity, and $1.3 million of compensation expense earned under the 2019-2020 award opportunity. During 2020, the Company recognized $3.9 million for 266,221 shares earned under the 2020-2021 award opportunity and $4.2 million of compensation expense earned under the 2019-2020 award opportunity. During 2019, the Company recognized $5.6 million for 331,150 shares earned under the 2019-2020 award opportunity and $2.2 million of compensation expense earned under the 2018-2019 award opportunity. Basic and Diluted Shares Reconciliation The Company uses the two-class method to calculate earnings per share. The Company has granted restricted stock that contains non-forfeitable rights to dividends on unvested shares. Since these unvested shares are considered participating securities under the two-class method, the Company allocates earnings per share to common stock and participating securities according to dividends declared and participation rights in undistributed earnings. Diluted net income per common share is computed based on net income divided by the weighted average number of common and potential common shares outstanding. Potential common shares during the respective periods are those related to dilutive stock-based compensation, including long-term share-based incentive compensation, and directors' accumulated deferred stock compensation which may be received by the directors in the form of stock or cash. A reconciliation of the average number of common and potential common shares outstanding used in the calculations of basic and diluted net income per share follows ($ in millions, shares in thousands): For the Years Ended December 31, 2021 2020 2019 Numerator (basic and diluted): Net income $ 88.9 $ 83.8 $ 85.8 Less: Dividends paid to participating securities (0.6) (0.7) (0.4) Less: Undistributed earnings available to participating securities (0.5) (0.4) (0.2) Undistributed and distributed earnings available to common stockholders $ 87.8 $ 82.7 $ 85.2 Denominator: Average number of common shares outstanding 31,030.4 30,832.7 30,652.2 Effect of dilutive stock-based compensation 369.9 271.5 186.1 Average number of common and potential common shares outstanding 31,400.3 31,104.2 30,838.3

Commitments and Contingencies

Commitments and Contingencies	12 Months Ended
	Dec. 31, 2021
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies	Commitments and Contingencies Other Commitments As of December 31, 2021, we had contractual obligations to purchase products and services (primarily raw materials) and energy totaling $103.2 million. These commitments extend beyond 2025. The Company has certain other letters of credit, guarantees and surety bonds outstanding at December 31, 2021, which are not material either individually or in the aggregate. Litigation Brazil SWM-Brazil "SWM-B" received assessments from the tax authorities of the State of Rio de Janeiro (the "State") for unpaid Imposto sobre Circulação de Mercadorias e Serviços ("ICMS") and Fundo Estadual de Combate à Pobreza ("FECP") value-added taxes on interstate purchases of electricity. The State issued four sets of assessments against SWM-B for periods from May 2006 through December 2017 (collectively the "Electricity Assessments"). SWM-B challenged all Electricity Assessments in administrative proceedings before the State tax council (in the Junta de Revisão Fiscal “first-level administrative court” and the Conselho de Contribuintes “administrative appellate court”) based on Resolution 1.610/89, which defers these taxes on electricity purchased by an "electricity-intensive consumer." In 2014, a majority of the administrative appellate court sitting en banc ruled against SWM-B in each of the first and second Electricity Assessments ($9.9 million based on the foreign currency exchange rate at December 31, 2021), and SWM-B is now pursuing challenges to these assessments in the State judicial system where SWM-B obtained preliminary injunctions against enforcement of both assessments. In March 2020, the first-level judicial court ruled in favor of SWM-B in the second Electricity Assessment, a decision that is now on appeal. The third Electricity Assessment was dismissed on technical grounds in 2018. Instead, in August 2018, the State filed revised third and fourth Electricity Assessments for a combined amount of $7.9 million. SWM-B filed challenges to these 2018 assessments in the first-level administrative court on the same grounds as the older cases, receiving unfavorable rulings from the courts in 2019. Both 2019 decisions are being appealed. The State issued a new regulation effective January 1, 2018 that only specific industries are “electricity-intensive consumers,” a list that excludes paper manufacturers. SWM-B contends this regulation shows that paper manufacturers were electricity-intensive consumers eligible to defer ICMS before 2018. SWM-B cannot determine the outcome of the Electricity Assessments matters; as such so no loss has been accrued in our consolidated financial statements for them. In December of 2000, SWM-B received two assessments from the tax authorities of the State for unpaid ICMS taxes on certain raw materials from January 1995 through October 1998 and from November 1998 through November 2000 (collectively, the "Raw Materials Assessments"). The Raw Materials Assessments concerned the accrual and use by SWM-B of ICMS tax credits generated from the production and sale of certain non-tobacco related grades of paper sold domestically. An adverse judgement was received during 2019 and a provision of $8.6 million (based on the foreign currency exchange rate at March 31, 2021) was recorded in Other Liabilities. On April 9, 2021, SWM-B resolved the Raw Materials Assessment by paying $2.6 million (based on the foreign currency exchange rate at March 31, 2021) under a tax amnesty program which reduced the tax liability by approximately 70%. All litigation is now concluded on this matter which is fully resolved. As the result of the favorable settlement, we recognized a total benefit of $6.1 million in the first quarter of 2021, of which $4.6 million was in Interest expense and $1.6 million was in Other expense, net. Germany In January 2015, the Company initiated patent infringement proceedings in Germany against Glatz under multiple LIP-related patents. In December 2017, the Dusseldorf Appeal Court affirmed the German District Court judgment on infringement of EP1482815 against Glatz. The Company filed an action against Glatz in the German District Court to set the amount of damages for the infringement and Glatz has filed a counterclaim. Glatz has filed an action in the German Patent Court to invalidate the German part of EP1482815. The German Patent Court held that some of the patent claims at issue were invalid and also that another claim at issue was valid. The Company appealed the portion of the decision with respect to the claims held to be invalid. The German Supreme Court confirmed the German Patent Court decision on appeal. The cost, timing and outcome of intellectual property litigation can be unpredictable and thus no assurances can be given as to the outcome or impact on us of such litigation. Environmental Matters The Company's operations are subject to various nations' federal, state and local laws, regulations and ordinances relating to environmental matters. The nature of the Company's operations exposes it to the risk of claims with respect to various environmental matters, and there can be no assurance that material costs or liabilities will not be incurred in connection with such claims. While the Company has incurred in the past several years, and will continue to incur, capital and operating expenditures in order to comply with environmental laws and regulations, it believes that its future cost of compliance with environmental laws, regulations and ordinances, and its exposure to liability for environmental claims and its obligation to participate in the remediation and monitoring of certain hazardous waste disposal sites, will not have a material effect on its financial condition or results of operations. However, future events, such as changes in existing laws and regulations, or unknown contamination or costs of remediation of sites owned, operated or used for waste disposal by the Company (including contamination caused by prior owners and operators of such sites or other waste generators) may give rise to additional costs which could have a material effect on its financial condition or results of operations. General Matters In the ordinary course of conducting business activities, the Company and its subsidiaries become involved in certain other judicial, administrative and regulatory proceedings involving both private parties and governmental authorities. These proceedings include insured and uninsured regulatory, employment, intellectual property, general and commercial liability, environmental and other matters. At this time, the Company does not expect any of these proceedings to have a material effect on its reputation, business, financial condition, results of operations or cash flows. However, the Company can give no assurance that the results of any such proceedings will not materially affect its reputation, business, financial condition, results of operations or cash flows.

Segment Information

Segment Information	12 Months Ended
	Dec. 31, 2021
Segment Reporting [Abstract]
Segment Information	Segment Information The Company's two operating product line segments are also the Company's reportable segments: Advanced Materials and Structures and Engineered Papers. The AMS segment primarily produces engineered resin-based rolled goods such as nets, films, and other non-wovens for use in high-performance applications in the healthcare, construction, industrial, transportation and filtration industrial end-markets. The EP segment primarily produces cigarette papers including LIP papers, plug wrap papers and base tipping papers used to wrap various parts of a cigarette for sale to cigarette manufacturers and reconstituted tobacco leaf, or RTL, and wrapper and binder products for sale to cigarette and cigar manufacturers. The EP segment also includes commercial and industrial products such as lightweight printing and writing papers, battery separator paper, drinking straw wrap, filter paper and other specialized papers. Information about Net Sales and Operating Profit The Company primarily evaluates segment performance and allocates resources based on operating profit. Expense amounts not associated with segments are referred to as unallocated expenses. ($ in millions) Net Sales For the Years Ended December 31, 2021 2020 2019 Advanced Materials & Structures $ 930.7 64.6 % $ 543.5 50.6 % $ 477.2 46.7 % Engineered Papers 509.3 35.4 530.9 49.4 545.6 53.3 Consolidated $ 1,440.0 100.0 % $ 1,074.4 100.0 % $ 1,022.8 100.0 % ($ in millions) Operating Profit For the Years Ended December 31, 2021 2020 2019 Advanced Materials & Structures $ 61.6 73.9 % $ 64.8 50.3 % $ 64.3 48.0 % Engineered Papers 100.5 120.6 116.8 90.7 119.2 89.0 Unallocated (78.8) (94.6) (52.8) (41.0) (49.5) (37.0) Consolidated $ 83.3 99.9 % $ 128.8 100.0 % $ 134.0 100.0 % ($ in millions) Capital Spending Depreciation 2021 2020 2019 2021 2020 2019 Advanced Materials & Structures $ 19.5 $ 14.5 $ 16.1 $ 25.9 $ 14.5 $ 12.8 Engineered Papers 16.4 15.5 12.0 21.7 27.5 22.8 Unallocated — 0.1 0.5 0.2 0.2 0.2 Consolidated $ 35.9 $ 30.1 $ 28.6 $ 47.8 $ 42.2 $ 35.8 Assets are managed on a total company basis and are therefore not disclosed at the segment level. Information about Geographic Areas Long-lived assets by geographic area as of year-end were as follows ($ in millions): Long-Lived Assets 2021 2020 2019 U.S. $ 173.9 $ 122.1 $ 118.5 France 169.1 169.3 158.8 U.K. 65.4 10.3 9.9 Brazil 15.3 15.2 19.5 Poland 10.4 12.9 14.7 Other foreign countries 43.7 22.1 20.8 Consolidated $ 477.8 $ 351.9 $ 342.2

Major Customers

Major Customers	12 Months Ended
	Dec. 31, 2021
Risks and Uncertainties [Abstract]
Major Customers	Major Customers There were no individual customers in the AMS segment and the EP segment which made up 10% or more of the Company's 2021, 2020 or 2019 consolidated net sales. There were no individual customers in the AMS segment and the EP segment which made up 10% or more of the Company's consolidated accounts receivable at December 31, 2021 or 2020.

Supplemental Disclosures

Supplemental Disclosures	12 Months Ended
	Dec. 31, 2021
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Supplemental Disclosures	Supplemental Disclosures Analysis of Allowances for Doubtful Accounts: ($ in millions) For the Years Ended December 31, 2021 2020 2019 Allowance for Doubtful Accounts Beginning balance $ 1.1 $ 1.5 $ 1.7 Bad debt expense 0.3 1.0 0.4 Recoveries (0.1) — (0.3) Write-offs and discounts 0.1 (1.4) (0.3) Ending balance $ 1.4 $ 1.1 $ 1.5 Supplemental Cash Flow Information ($ in millions) For the Years Ended December 31, 2021 2020 2019 Interest paid $ 47.4 $ 31.4 $ 29.1 Income taxes paid 22.4 14.8 20.8 Capital spending in accounts payable and accrued liabilities 6.3 5.2 5.9

Quarterly Financial Information

Quarterly Financial Information (Unaudited)	12 Months Ended
	Dec. 31, 2021
Quarterly Financial Information Disclosure [Abstract]
Quarterly Financial Information (Unaudited)	Quarterly Financial Information (Unaudited) The following tables summarize the Company's unaudited quarterly financial data for the years ended December 31, 2021 and 2020 ($ in millions, except per share amounts): 2021 First Second Third Fourth Year Net sales $ 288.2 $ 377.8 $ 383.6 $ 390.4 $ 1,440.0 Gross profit 80.8 88.1 85.2 76.2 330.3 Restructuring and impairment expense 1.7 2.3 1.9 4.2 10.1 Operating profit 33.5 15.9 23.0 10.9 83.3 Net income $ 21.6 $ 1.8 $ 12.2 $ 53.3 $ 88.9 Net income per share: Net income per share - basic $ 0.69 $ 0.06 $ 0.38 $ 1.70 $ 2.83 Net income per share - diluted $ 0.68 $ 0.06 $ 0.38 $ 1.68 $ 2.80 2020 First Second Third Fourth Year Net sales $ 261.5 $ 254.2 $ 279.3 $ 279.4 $ 1,074.4 Gross profit 74.3 74.3 80.2 79.5 308.3 Restructuring and impairment expense 0.1 1.6 6.0 4.2 11.9 Operating profit 34.1 34.4 37.0 23.3 128.8 Net income $ 22.5 $ 21.5 $ 24.5 $ 15.3 $ 83.8 Net income per share: Net income per share - basic $ 0.72 $ 0.69 $ 0.78 $ 0.49 $ 2.68 Net income per share - diluted $ 0.72 $ 0.68 $ 0.78 $ 0.48 $ 2.66

Subsequent Event

Subsequent Event	12 Months Ended
	Dec. 31, 2021
Subsequent Events [Abstract]
Subsequent Event	Subsequent EventOn February 22, 2022 we amended a financial covenant in our existing Credit Agreement to adjust the step-down schedule for the maximum net debt to EBITDA ratio. Pursuant to the amendment, the Company will maintain a net debt to EBITDA ratio, as defined in the amended Credit Agreement, calculated on a trailing four fiscal quarter basis, not greater than 6.00x and an interest coverage ratio, also as defined in the amended Credit Agreement, of not less than 3.00x. The net debt to EBITDA ratio will decrease over the course of 15 months, returning to 4.50x effective as of June 30, 2023. See Note 14. Debt for additional information on our existing Credit Agreement.

Summary of Significant Accoun_2

Summary of Significant Accounting Policies (Policies)	12 Months Ended
	Dec. 31, 2021
Accounting Policies [Abstract]
Basis of Presentation	Basis of Presentation The accompanying consolidated financial statements and the notes thereto have been prepared in accordance with accounting principles generally accepted in the United States of America, "U.S. GAAP." The preparation of financial statements in conformity with U.S. GAAP requires the Company to make estimates and assumptions that affect the reported amounts of assets and liabilities, disclosure of contingent assets and liabilities at the date of the financial statements, and the reported amounts of revenue and expenses during the reporting periods. The Company believes the estimates and assumptions used in the preparation of these consolidated financial statements are reasonable, based upon currently available facts and known circumstances. Actual results may differ from those estimates and assumptions as a result of a number of factors, including those discussed elsewhere in this report and in its other public filings from time to time.
Principles of Consolidation	Principles of Consolidation The consolidated financial statements include the accounts of the Company and wholly-owned, majority-owned and controlled subsidiaries. Intercompany balances and transactions have been eliminated. The Company uses the equity method to account for its investments in two joint ventures with the China National Tobacco Corporation (see Note 9. Joint Ventures). Investment in equity affiliates represents the Company’s investment in these joint ventures. The Company’s 50% share of the net income of the joint ventures is included in the consolidated statements of income as income from equity affiliates.
Revenue Recognition	Revenue Recognition The Company has two main sources of revenue: product sales and materials conversion. The Company recognizes product sales revenues when control of a product is transferred to the customer. For the majority of product sales, transfer of control occurs when the products are shipped from one of the Company’s manufacturing facilities to the customer. Any freight costs billed to and paid by a customer are included in net sales. The Company also provides services to customers through the conversion of customer-owned raw materials into processed finished goods. In these transactions, the Company generally recognizes revenue as processing is completed. Freight Costs The cost of delivering finished goods to the Company's customers is recorded as a component of cost of products sold. Those costs include the amounts paid to a third party to deliver the finished goods. Royalty Income
Foreign Currency Translation	Foreign Currency Translation The income statements of foreign entities are translated into U.S. dollars at average exchange rates prevailing during the periods presented. The balance sheets of these entities are translated at period-end exchange rates, and the differences from historical exchange rates are reflected in a separate component of accumulated other comprehensive loss as unrealized foreign currency translation adjustments.
Derivative Instruments	Derivative Instruments The Company is exposed to changes in foreign currency exchange rates, interest rates and commodity prices. The Company utilizes a variety of practices to manage these market risks, including where considered appropriate, derivative instruments. The Company uses derivative instruments only for risk management purposes and not for trading or speculation. All derivative instruments the Company uses are either exchange traded or are entered into with major financial institutions in order to reduce credit risk and risk of nonperformance by third parties. The Company believes the credit risks with respect to the counterparties, and the foreign currency risks that would not be hedged if the counterparties fail to fulfill their obligations under the contracts, are not material in view of its understanding of the financial strength of the counterparties.
Cash and Cash Equivalents	Cash and Cash EquivalentsThe Company considers all highly liquid, unrestricted investments with remaining maturities of three months or less to be cash equivalents, including money market funds with no restrictions on withdrawals.
Business Combinations	Business CombinationsThe Company uses the acquisition method of accounting for business combinations. At the acquisition date, the Company records assets acquired, and liabilities assumed at their respective fair market values. The Company estimates fair value using the exit price approach which is the price that would be received to sell an asset or paid to transfer a liability in an orderly market. An exit price is determined from a market participant's viewpoint in the principal or most advantageous market and may result in the Company valuing assets or liabilities at a fair value that is not reflective of the Company's intended use of the assets or liabilities. Any excess consideration above the estimated fair values of the net assets acquired is recognized as goodwill on the Company's Consolidated Balance Sheets. The operating results of acquired businesses are included in the Company's results of operations beginning as of their effective acquisition dates.
Impairment of Long-Lived Assets, Goodwill and Intangible Assets	Impairment of Long-Lived Assets, Goodwill, and Intangible Assets The Company evaluates the carrying value of long-lived assets, including property and equipment, goodwill, and intangible assets when events and circumstances warrant a review. Goodwill is also tested for impairment annually during the fourth quarter. We first evaluate qualitative factors, such as macroeconomic conditions and our overall financial performance by reporting unit to determine whether it is more likely than not that the fair value of a reporting unit is less than its carrying amount, including goodwill. We then evaluate how significant each of the identified factors could be to the fair value or carrying amount of a reporting unit and weigh these factors in totality in forming a conclusion of whether or not it is more likely than not that the fair value of a reporting unit is less than its carrying amount (the “Step 0 Test”). Goodwill is not impaired if we determine that it is not more likely than not that the fair value of a reporting unit is less than its carrying amount. Otherwise, we would proceed to the goodwill impairment test. Alternatively, we may also bypass the Step 0 Test and proceed directly to the goodwill impairment test, where the fair value of the reporting unit is compared to the carrying value. The difference between the total fair value of the reporting unit and the carrying value is recognized as an impairment to the reporting unit's goodwill. See Note 10. Goodwill for further discussion of the Company's annual impairment test results. During the annual testing performed as of October 1, 2021, the estimated fair value of each of the Company's reporting units was in excess of its respective carrying value. We have acquired trade names that have been determined to have indefinite lives. We evaluate a number of factors to determine whether an indefinite life is appropriate, including the competitive environment, category share, business history, product life cycle and operating plans. Indefinite-lived intangibles are evaluated for impairment annually during the fourth quarter. Additionally, when certain events or changes in operating conditions occur, an impairment assessment is performed, and indefinite-lived trade names may be adjusted to a determinable life or an impairment charge may be recorded. The cost of intangible assets with determinable useful lives is amortized to reflect the pattern of economic benefits consumed, which approximates a straight-line basis, over the estimated periods benefited. When certain events or changes in operating conditions occur, an impairment assessment is performed and lives of intangible assets with determinable lives may be adjusted. Estimated useful lives range from 15 to 23 years for customer relationships and 4 to 20 years for developed technology, patents, and other intangible assets. The carrying value of long-lived assets is reviewed to determine if events or circumstances have changed which may indicate that the assets may be impaired, or the useful life may need to be changed. Upon occurrence of such a triggering event, the Company considers internal and external factors relating to each asset group, including expectation of future profitability, undiscounted cash flows and its plans with respect to the operations. If impairment is indicated, an impairment loss is measured by the amount the net carrying value of the asset exceeds its estimated fair value.
Environmental Spending	Environmental Spending Environmental spending is capitalized if such spending qualifies as property, plant and equipment, substantially increases the economic value or extends the useful life of an asset. All other such spending is expensed as incurred, including fines and penalties incurred in connection with environmental violations. Environmental spending relating to an existing condition caused by past operations is expensed. Liabilities are accrued when environmental assessments are probable, and the costs can be reasonably estimated. Generally, timing of these accruals coincides with completion of a feasibility study or commitment to a formal plan of action.
Capitalized Software Costs	Capitalized Software CostsThe Company capitalizes certain purchases of software and software development costs in connection with major projects of software development for internal use. These costs are included in Other assets on the Consolidated Balance Sheets and are amortized using the straight-line method over the estimated useful life not to exceed seven years. Costs associated with business process redesign, end-user training, system start-up and ongoing software maintenance are expensed as incurred.
Business Tax Credits	Business Tax CreditsBusiness tax credits represent value added tax credits receivable and similar assets, such as Imposto sobre Circulação de Mercadorias e Serviços, or ICMS, in Brazil. Business tax credits are generated when value-added taxes, or VAT, are paid on purchases. VAT and similar taxes are collected from customers on certain sales. In some jurisdictions, export sales do not require VAT collection.
Income Taxes	Income Taxes Our income tax expense, deferred tax assets and liabilities, and liabilities for unrecognized tax benefits reflect management’s best estimate of current and future taxes to be paid. We operate and are subject to income taxes in the U.S. and numerous foreign jurisdictions. The complexity of our global structure requires technical expertise in determining the allocation of income to each of these jurisdictions and consolidated income tax expense. The Company accounts for income taxes under the asset and liability method, which requires the recognition of deferred tax assets and liabilities for the expected future tax consequences of events that have been included in the financial statements. Under this method, deferred tax assets and liabilities are determined on the basis of the differences between the financial statement and tax bases of assets and liabilities by using enacted tax rates in effect for the year in which the differences are expected to reverse. The effect of a change in tax rates on deferred tax assets and liabilities is recognized in income in the period that includes the enactment date. The Company recognizes deferred tax assets to the extent that it believes that these assets are more likely than not to be realized. In making such a determination, all available positive and negative evidence is considered, including future reversals of existing taxable temporary differences, projected future taxable income, tax planning strategies, and results of recent operations. If it is determined that the Company would be able to realize the deferred tax assets in the future in excess of their net recorded amount, an adjustment would be made to the deferred tax asset valuation allowance, which would reduce the provision for income taxes. The Company records uncertain tax positions in accordance with ASC 740 on the basis of a two-step process in which (1) it is determined whether it is more likely than not that the tax positions will be sustained on the basis of the technical merits of the position and (2) for those tax positions that meet the more-likely-than-not recognition threshold, the Company recognizes the largest amount of tax benefit that is more than 50 percent likely to be realized upon ultimate settlement with the related tax authority.
Pension and Other Postretirement Benefits Accounting	Pension and Other Postretirement Benefits Accounting The Company recognizes the estimated compensation cost of employees' pension and other postretirement benefits over their approximate period of service. The Company's earnings are impacted by amounts of expense recorded related to these benefits, which primarily consist of U.S., U.K., and French pension benefits. Each year's recorded expenses are estimates based on actuarial calculations of the Company's accumulated and projected benefit obligations, or PBOs, for the Company's various plans.
Comprehensive Income	Comprehensive Income Comprehensive income includes net income, as well as items charged and credited directly to stockholders' equity, which are excluded from net income. The Company has presented comprehensive income in the Consolidated Statements of Comprehensive Income. Reclassification adjustments of derivative instruments are presented in Net sales and Interest expense in the Consolidated Statements of Income.
Restricted Stock	Restricted StockAll of the Company's restricted stock grants, including those that have been earned in the case of performance-based shares and cliff-vesting grants that are not performance based, vest upon completion of a specified period of time, typically between two
Restricted Stock Plan Performance Based Shares	Restricted Stock Plan Performance Based Shares The Company's long-term incentive compensation program, or LTICP, for key employees includes an equity-based award component that is provided through the Long-term Incentive Plan, or LTIP, which the Company adopted in 2015 and which replaced its previous Restricted Stock Plan, or RSP. The objectives under the LTICP are established at the beginning of a performance cycle and are intended to focus management on longer-term strategic goals. The Compensation Committee of the Board of Directors designates participants in the LTICP and LTIP and determines the equity-based award opportunity in the form of restricted stock for each performance cycle, which is generally measured on the basis of a one year performance period (the measurement period). The restricted shares are considered issued and outstanding when the number of shares becomes fixed, after the annual performance is determined, and such awards vest at the end of the performance year or some predetermined period thereafter. The Company recognizes compensation expense with an offsetting credit to additional paid-in-capital over the performance period based on the fair value of the award at the date of grant, with compensation expense being adjusted cumulatively based on the number of shares expected to be earned according to the level of achievement of performance goals.
Fair Value Option	Fair Value Option The Company has not elected to measure its financial instruments or certain commitments at fair value.
Recently Adopted Accounting Pronouncements and Recently Issued Accounting Standards	Recently Adopted Accounting Pronouncements In December 2019, the FASB issued ASU 2019-12, "Income Taxes (Topic 740): Simplifying the Accounting for Income Taxes." The new standard simplifies income tax accounting requirements by removing certain exceptions to the general principles in Topic 740, Income Taxes. The provisions of this ASU were adopted effective January 1, 2021, and did not have a material impact on the consolidated financial statements. In August 2018, the FASB issued ASU 2018-14, "Compensation—Retirement Benefits—Defined Benefit Plans—General (Subtopic 715-20): Disclosure Framework—Changes to the Disclosure Requirements for Defined Benefit Plans." The new standard modifies the annual disclosure requirements for employers that sponsor defined benefit pension or other postretirement plans and requires the amendments to be applied on a retrospective basis for all periods presented. The provisions of this ASU were adopted effective January 1, 2021. The required disclosure changes did not have a material impact on the consolidated financial statements Recently Issued Accounting Standards In March 2020, the FASB issued ASU 2020-04, "Reference Rate Reform (Topic 848): Facilitation of the Effects of Reference Rate Reform on Financial Reporting." The new standard provides optional expedients and exceptions for applying generally accepted accounting principles ("GAAP") to contracts, hedging relationships, and other transactions affected by reference rate reform and the anticipated discontinuance of the London Interbank Offered Rate ("LIBOR") if certain criteria are met. The amendments in this ASU are effective for all entities as of March 12, 2020, through December 31, 2022. The Company does not currently have any contracts that have been changed to a new reference rate but will continue to evaluate the applicability and impact of the guidance.

Summary of Significant Accoun_3

Summary of Significant Accounting Policies (Tables)	12 Months Ended
	Dec. 31, 2021
Accounting Policies [Abstract]
Components of Accumulated Other Comprehensive Loss	Components of Accumulated other comprehensive (loss) income were as follows ($ in millions): December 31, 2021 2020 Accumulated pension and OPEB liability adjustments, net of income tax benefit of $8.9 million and $11.6 million at December 31, 2021 and 2020, respectively $ (14.4) $ (20.5) Accumulated unrealized loss on derivative instruments, net of income tax benefit of $2.1 million and $2.8 million at December 31, 2021 and 2020, respectively (1.9) (13.1) Accumulated unrealized foreign currency translation adjustments, net of income tax benefit of $9.5 million and $10.1 million at December 31, 2021 and 2020, respectively (102.7) (78.3) Accumulated other comprehensive loss $ (119.0) $ (111.9)
Changes in the Components of Accumulated Other Comprehensive Loss	Changes in the components of Accumulated other comprehensive (loss) income were as follows ($ in millions): For the Years Ended December 31, 2021 2020 2019 Pre-tax Tax Net of Pre-tax Tax Net of Pre-tax Tax Net of Pension and OPEB liability adjustments $ 8.9 $ (2.8) $ 6.1 $ 5.0 $ (1.2) $ 3.8 $ 2.5 $ 1.4 $ 3.9 Derivative instrument adjustments 11.9 (0.7) 11.2 (10.8) 1.2 (9.6) (2.9) — (2.9) Unrealized foreign currency translation adjustments (23.8) (0.6) (24.4) 11.5 5.0 16.5 (2.5) 3.4 0.9 Total $ (3.0) $ (4.1) $ (7.1) $ 5.7 $ 5.0 $ 10.7 $ (2.9) $ 4.8 $ 1.9

Revenue Recognition (Tables)

Revenue Recognition (Tables)	12 Months Ended
	Dec. 31, 2021
Revenue from Contract with Customer [Abstract]
Schedule of Disaggregation of Revenue	Net sales are attributed to the following geographic locations based on the location of the Company’s direct customers ($ in millions): For the Years Ended December 31, 2021 2020 2019 AMS EP Total AMS EP Total AMS EP Total U.S. $ 562.5 $ 155.8 $ 718.3 $ 376.7 $ 161.9 $ 538.6 $ 331.3 $ 182.8 $ 514.1 Europe and the former Commonwealth of Independent States 193.8 189.5 383.3 47.5 182.2 229.7 45.8 172.6 218.4 Asia/Pacific (including China) 124.9 86.2 211.1 94.6 110.7 205.3 77.6 95.0 172.6 Americas (excluding U.S.) 31.4 46.5 77.9 9.3 43.6 52.9 7.6 45.6 53.2 Other foreign countries 18.1 31.3 49.4 15.4 32.5 47.9 14.9 49.6 64.5 Total revenues (1) $ 930.7 $ 509.3 $ 1,440.0 $ 543.5 $ 530.9 $ 1,074.4 $ 477.2 $ 545.6 $ 1,022.8 (1) Revenues include net hedging gains and losses for the years ended December 31, 2021, 2020 and 2019.
Schedules of Disaggregated of Percentage	Net sales for the AMS business are disaggregated by end market as the percentage of the net sales as follows. For the Years Ended December 31, 2021 2020 Healthcare 24 % 14 % Construction 20 % 23 % Industrial 20 % 17 % Transportation 18 % 22 % Filtration 18 % 24 % Total revenues (1) 100 % 100 % (1) Revenues include contributions from Scapa Group plc and Tekra LLC effective April 15, 2021, and March 13, 2020, respectively.

Leases (Tables)

Leases (Tables)	12 Months Ended
	Dec. 31, 2021
Leases [Abstract]
Components of Right-of-Use Assets and Lease Liabilities	Components of right-of-use assets and lease liabilities presented in the balance sheet are as follows ($ in million): Assets Classification December 31, 2021 December 31, 2020 Operating lease right-of-use assets Other assets $ 25.1 $ 19.8 Finance lease right-of-use assets Property, plant and equipment, net 2.2 3.0 Total right of use assets $ 27.3 $ 22.8 Liabilities Classification December 31, 2021 December 31, 2020 Current operating lease obligation Accrued expenses $ 7.3 $ 5.2 Long-term operating lease obligation Other liabilities 18.7 15.6 Total operating lease obligation $ 26.0 $ 20.8 Current finance lease obligation Current debt $ 0.5 $ 0.5 Long-term finance lease obligation Long-term debt 2.3 3.0 Total finance lease obligation $ 2.8 $ 3.5
Components of Lease Expense, Lease Term and Discount Rate and Other Information	Components of lease expense incurred by the Company are as follow ($ in millions): Lease Cost Year Ended December 31, 2021 Year ended December 31, 2020 Finance lease cost (cost resulting from lease payments) Interest expense on lease liabilities $ 0.7 0.2 Amortization of right-of-use assets 0.9 0.5 Operating lease cost 8.4 6.8 Short-term lease expense 2.3 0.4 Total lease cost $ 12.3 $ 7.9 Lease Term and Discount Rate December 31, 2021 December 31, 2020 Weighted-average remaining lease term (years) Operating leases 4.9 5.8 Finance leases 5.5 6.3 Weighted-average discount rate Operating leases 5.44 % 6.19 % Finance leases 5.22 % 5.26 % Other Information (millions) Year Ended December 31, 2021 Year ended December 31, 2020 Cash paid for amounts included in the measurement of lease liabilities Operating cash flows from operating leases 8.7 6.9 Operating cash flows from finance leases 0.7 0.2 Leased assets obtained in exchange for new finance lease liabilities 15.1 0.4 Leased assets obtained in exchange for new operating lease liabilities 10.0 3.9
Maturity of Lease Liabilities, Finance Leases	The following table represents future contractual lease liabilities for the next five years and thereafter for finance and operating leases ($ in millions): Maturity of Lease Liabilities Finance Operating Total 2022 $ 0.7 8.5 $ 9.2 2023 0.6 6.0 6.6 2024 0.5 5.0 5.5 2025 0.5 3.7 4.2 2026 0.5 2.3 2.8 Thereafter 0.4 4.3 4.7 Total lease payments $ 3.2 $ 29.8 $ 33.0 Less: Interest 0.4 3.8 4.2 Present value of lease liabilities $ 2.8 $ 26.0 $ 28.8
Maturity of Lease Liabilities, Operating Leases	The following table represents future contractual lease liabilities for the next five years and thereafter for finance and operating leases ($ in millions): Maturity of Lease Liabilities Finance Operating Total 2022 $ 0.7 8.5 $ 9.2 2023 0.6 6.0 6.6 2024 0.5 5.0 5.5 2025 0.5 3.7 4.2 2026 0.5 2.3 2.8 Thereafter 0.4 4.3 4.7 Total lease payments $ 3.2 $ 29.8 $ 33.0 Less: Interest 0.4 3.8 4.2 Present value of lease liabilities $ 2.8 $ 26.0 $ 28.8

Business Acquisitions (Tables)

Business Acquisitions (Tables)	12 Months Ended
	Dec. 31, 2021
Business Combination and Asset Acquisition [Abstract]
Schedule of Recognized Identified Assets Acquired and Liabilities Assumed	The consideration paid for Scapa, and the preliminary estimated fair values of the assets acquired, and liabilities assumed as of the April 15, 2021, acquisition date were as follows ($ in millions): Preliminary Allocation as of December 31, 2021 Adjustments Preliminary Allocation as of April 15, 2021 Cash and cash equivalents $ 22.7 $ — $ 22.7 Accounts receivable 67.7 — 67.7 Inventory 60.0 (0.9) 60.9 Other current assets 9.7 (0.1) 9.8 Property, plant and equipment 160.2 8.1 152.1 Identifiable intangible assets 246.2 — 246.2 Other assets 23.3 (3.0) 26.3 Total assets $ 589.8 $ 4.1 $ 585.7 Current debt $ 15.0 $ — $ 15.0 Accounts payable and other current liabilities 85.8 (0.1) 85.9 Deferred income tax liabilities 45.7 (15.8) 61.5 Other liabilities 40.4 7.3 33.1 Net assets acquired $ 402.9 $ 12.7 $ 390.2 Goodwill 250.4 (12.7) 263.1 Total consideration $ 653.3 $ — $ 653.3 The consideration paid for Tekra and the final fair values of the assets acquired, and liabilities assumed as of the March 13, 2020 acquisition date are as follows ($ in millions): Fair Value as of March 13, 2020 Cash and cash equivalents $ 1.6 Accounts receivable 8.6 Inventory 14.2 Other current assets 0.2 Property, plant and equipment 7.3 Identifiable intangible assets 81.8 Other noncurrent assets 3.7 Total assets $ 117.4 Accounts payable $ 3.0 Other current liabilities 2.0 Other noncurrent liabilities 2.7 Net assets acquired $ 109.7 Goodwill 61.2 Total consideration $ 170.9
Finite-Lived and Indefinite-Lived Intangible Assets Acquired as Part of Business Combination	The following table shows the preliminary fair values assigned to identifiable intangible assets ($ in millions): Fair Value Weighted-Average Amortization Period (Years) Amortizable intangible assets: Customer relationships $ 205.4 15 Tradenames and other 7.7 10 Developed technology 33.1 7 Total amortizable intangible assets $ 246.2 Fair Value as of March 13, 2020 Weighted-Average Amortization Period (Years) Amortizable intangible assets: Customer relationships $ 63.0 15 Tradenames and other 10.8 15 Developed technology 8.0 10 Total amortizable intangible assets $ 81.8
Actual and Pro Forma Net Sales and Income from Continuing Operations	The amounts of Net sales and Income from Scapa included in the Company's consolidated income statement from the acquisition date are as follows ($ in millions): April 15, 2021 - December 31, 2021 Net sales $ 305.6 Net income $ 0.6 March 13, 2020 - December 31, 2020 Net sales $ 77.3 Net income $ 1.9 The unaudited supplemental pro forma financial information presented below is not necessarily indicative of consolidated results of operations of the combined business had the Scapa and Tekra acquisitions occurred as of January 1, 2020, and January 1, 2019, respectively, nor is it necessarily indicative of the of the future results of the combined company. Year Ended December 31, 2021 December 31, 2020 Net sales $ 1,570.6 $ 1,456.8 Net income (loss) (1) $ 101.2 $ (20.8) (1) Unaudited supplemental pro forma financial information includes the impact of restructuring and the impairment of goodwill and intangible assets totaling $71.1 million on Scapa net income for the twelve months ended December 31, 2020.

Accounts Receivable (Tables)

Accounts Receivable (Tables)	12 Months Ended
	Dec. 31, 2021
Receivables [Abstract]
Schedule of Accounts Receivable	Accounts receivable, net are summarized as follows ($ in millions): December 31, 2021 2020 Trade receivables $ 208.9 $ 130.9 Business tax credits, including VAT 7.8 4.0 Hedge contracts receivable 0.4 0.3 Other receivables 22.3 14.4 Less allowance for doubtful accounts and sales discounts (1.4) (1.1) Total accounts receivable, net $ 238.0 $ 148.5 Analysis of Allowances for Doubtful Accounts: ($ in millions) For the Years Ended December 31, 2021 2020 2019 Allowance for Doubtful Accounts Beginning balance $ 1.1 $ 1.5 $ 1.7 Bad debt expense 0.3 1.0 0.4 Recoveries (0.1) — (0.3) Write-offs and discounts 0.1 (1.4) (0.3) Ending balance $ 1.4 $ 1.1 $ 1.5

Inventories (Tables)

Inventories (Tables)	12 Months Ended
	Dec. 31, 2021
Inventory Disclosure [Abstract]
Schedule of Inventories by Major Class	The following schedule details inventories by major class ($ in millions): December 31, 2021 2020 Raw materials $ 113.4 $ 65.3 Work in process 41.9 23.2 Finished goods 95.7 83.5 Supplies and other 8.5 7.7 Inventories $ 259.5 $ 179.7

Property, Plant and Equipment (

Property, Plant and Equipment (Tables)	12 Months Ended
	Dec. 31, 2021
Property, Plant and Equipment [Abstract]
Property, Plant and Equipment	Property, plant and equipment (and related depreciable lives) consisted of the following ($ in millions): December 31, 2021 2020 Land and improvements $ 31.6 $ 13.6 Buildings and improvements (20 to 40 years or remaining life of relevant lease) 194.5 144.0 Machinery and equipment (5 to 20 years) 739.8 524.4 Construction in progress 32.6 23.1 Gross property, plant and equipment 998.5 705.1 Less: Accumulated depreciation 534.6 366.1 Property, plant and equipment, net $ 463.9 $ 339.0

Goodwill (Tables)

Goodwill (Tables)	12 Months Ended
	Dec. 31, 2021
Goodwill and Intangible Assets Disclosure [Abstract]
Schedule of Goodwill	The changes in the carrying amount of goodwill for each reportable segment were as follows ($ in millions): Advanced Materials & Structures Engineered Papers Total Goodwill as of December 31, 2019 $ 332.5 $ 4.9 $ 337.4 Goodwill acquired during the year 61.2 — 61.2 Foreign currency translation adjustments 4.7 0.4 5.1 Goodwill as of December 31, 2020 $ 398.4 $ 5.3 $ 403.7 Goodwill acquired during the year 250.4 — 250.4 Foreign currency translation adjustments (5.4) (0.4) (5.8) Goodwill as of December 31, 2021 $ 643.4 $ 4.9 $ 648.3

Intangible Assets (Tables)

Intangible Assets (Tables)	12 Months Ended
	Dec. 31, 2021
Goodwill and Intangible Assets Disclosure [Abstract]
Schedule of Amortized Intangible Assets	The gross carrying amount and accumulated amortization for intangible assets which are in our AMS segment consisted of the following ($ in millions): December 31, 2021 Gross Accumulated Net Amortized Intangible Assets Customer relationships $ 541.7 $ 119.2 $ 422.5 Developed technology 74.6 20.7 53.9 Trade names 18.9 2.7 16.2 Non-compete agreements 2.9 2.5 0.4 Patents 1.5 0.6 0.9 Total $ 639.6 $ 145.7 $ 493.9 Unamortized Intangible Assets Trade names $ 20.0 $ — $ 20.0 December 31, 2020 Gross Accumulated Net Amortized Intangible Assets Customer relationships $ 343.9 $ 89.7 $ 254.2 Developed technology 42.4 14.2 28.2 Trade names 11.7 1.4 10.3 Non-compete agreements 2.9 2.4 0.5 Patents 1.5 0.5 1.0 Total $ 402.4 $ 108.2 $ 294.2 Unamortized Intangible Assets Trade names $ 20.5 $ — $ 20.5
Schedule of Unamortized Intangible Assets	The gross carrying amount and accumulated amortization for intangible assets which are in our AMS segment consisted of the following ($ in millions): December 31, 2021 Gross Accumulated Net Amortized Intangible Assets Customer relationships $ 541.7 $ 119.2 $ 422.5 Developed technology 74.6 20.7 53.9 Trade names 18.9 2.7 16.2 Non-compete agreements 2.9 2.5 0.4 Patents 1.5 0.6 0.9 Total $ 639.6 $ 145.7 $ 493.9 Unamortized Intangible Assets Trade names $ 20.0 $ — $ 20.0 December 31, 2020 Gross Accumulated Net Amortized Intangible Assets Customer relationships $ 343.9 $ 89.7 $ 254.2 Developed technology 42.4 14.2 28.2 Trade names 11.7 1.4 10.3 Non-compete agreements 2.9 2.4 0.5 Patents 1.5 0.5 1.0 Total $ 402.4 $ 108.2 $ 294.2 Unamortized Intangible Assets Trade names $ 20.5 $ — $ 20.5
Schedule of Future Amortization Expense	The following table shows the estimated aggregate amortization expense for the next five years ($ in millions): For the year ending December 31, Estimated Amortization Expense 2022 $ 44.5 2023 44.5 2024 44.2 2025 43.4 2026 43.4

Other Assets (Tables)

Other Assets (Tables)	12 Months Ended
	Dec. 31, 2021
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]
Schedule of Other Assets	Other assets consisted of the following ($ in millions): December 31, 2021 2020 Capitalized software costs, net of accumulated amortization $ 13.9 $ 12.9 Grantor trust assets 21.6 18.0 Net pension assets 26.3 9.3 Long-term supplies inventory 4.9 6.6 Operating lease assets 25.1 19.8 Other assets 9.3 2.6 Total $ 101.1 $ 69.2

Restructuring and Impairment _2

Restructuring and Impairment Activities (Tables)	12 Months Ended
	Dec. 31, 2021
Restructuring and Related Activities [Abstract]
Changes in Restructuring Liabilities	The following table summarizes total restructuring and related charges: For the Years Ended December 31, 2021 2020 2019 Restructuring and impairment expense: Severance $ 3.6 $ 11.6 $ 2.6 Other 4.9 0.3 1.1 Asset impairment 1.6 — — Total restructuring and impairment expense $ 10.1 $ 11.9 $ 3.7 Other restructuring related charges - Cost of products sold Accelerated depreciation and amortization 0.5 2.9 — Spare parts and consignment inventory write-down to estimated net realizable value 0.2 2.0 — Total other restructuring related charges - Cost of products sold $ 0.7 $ 4.9 $ — Total restructuring and impairment expense and other restructuring related charges $ 10.8 $ 16.8 $ 3.7 2021 2020 Balance at beginning of year $ 7.4 $ 0.5 Accruals for announced programs 4.7 11.9 Cash payments (5.7) (5.2) Exchange rate impacts (0.2) 0.2 Balance at end of period $ 6.2 $ 7.4

Debt (Tables)

Debt (Tables)	12 Months Ended
	Dec. 31, 2021
Debt Disclosure [Abstract]
Schedule of Total Debt	Total debt, net of debt issuance costs, is summarized in the following table ($ in millions): December 31, December 31, Revolving credit agreement - U.S. dollar borrowings $ 393.0 $ 50.0 Term loan A facility 193.5 195.5 Term loan B facility 348.2 — 6.875% senior unsecured notes due October 1, 2026, net of discount of $5.2 million and $6.1 million as of December 31, 2021 and 2020, respectively 344.8 343.9 French employee profit sharing 4.1 5.0 Finance lease obligations 2.8 3.5 Debt issuance costs (16.1) (4.6) Total debt 1,270.3 593.3 Less: Current debt (3.2) (2.8) Long-term debt $ 1,267.1 $ 590.5
Schedule of Maturities of Long-term Debt	Following are the expected maturities for the Company's debt obligations as of December 31, 2021 ($ in millions): 2022 $ 7.2 2023 399.7 2024 6.3 2025 192.5 2026 349.5 Thereafter 331.2 Total $ 1,286.4
Schedule of Amortization of Debt Issuance Costs	Following is the expected future amortization of the Company's deferred debt issuance costs as of December 31, 2021 ($ in millions): 2022 $ 3.9 2023 3.5 2024 2.3 2025 2.2 2026 1.9 Thereafter 2.3 Total $ 16.1

Derivatives (Tables)

Derivatives (Tables)	12 Months Ended
	Dec. 31, 2021
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Derivatives by Balance Sheet Location	The following table presents the fair value of asset and liability derivatives and the respective balance sheet locations at December 31, 2021 ($ in millions): Asset Derivatives Liability Derivatives Balance Sheet Fair Balance Sheet Fair Derivatives Designated as Hedges: Foreign exchange contracts Accounts receivable $ 1.6 Accrued expenses $ — Foreign exchange contracts Other assets — Other liabilities 9.8 Interest rate contracts Accounts receivable 0.2 Accrued expenses — Interest rate contracts Other assets 3.3 Other liabilities 2.1 Total derivatives designated as hedges $ 5.1 $ 11.9 Derivatives Not Designated as Hedges: Foreign exchange contracts Accounts receivable $ 0.2 Accounts payable $ 0.6 Total derivatives not designated as hedges 0.2 0.6 Total derivatives $ 5.3 $ 12.5 The following table presents the fair value of asset and liability derivatives and the respective balance sheet locations at December 31, 2020 ($ in millions): Asset Derivatives Liability Derivatives Balance Sheet Fair Balance Sheet Fair Derivatives Designated as Hedges: Foreign exchange contracts Accounts receivable $ 0.9 Accrued expenses $ 11.0 Foreign exchange contracts Other assets — Other liabilities 12.3 Interest rate contracts Accounts receivable 0.3 Accrued expenses — Interest rate contracts Other Assets — Other liabilities 7.8 Total derivatives designated as hedges $ 1.2 $ 31.1 Total derivatives $ 1.2 $ 31.1
Derivatives by Income Statement Location	The following table provides the gross effect that derivative instruments in cash flow hedging relationships had on accumulated other comprehensive income (loss), or AOCI, and results of operations ($ in millions): Derivatives Designated as Cash Flow Hedging Relationships Unrealized Gain (Loss) Recognized in AOCI on Derivatives, Net of Tax for the Year Ended December 31, Location of (Loss) Gain Reclassified from AOCI (Loss) Gain Reclassified 2021 2020 2019 2021 2020 2019 Derivatives designated as cash flow hedge Foreign exchange contracts $ (0.2) $ (5.3) $ (0.7) Net sales $ (1.7) $ (3.4) $ (1.2) Foreign exchange contracts 1.2 1.4 (2.3) Other income (expense) , net (0.2) 1.4 (1.9) Interest rate contracts 5.1 (7.7) 4.6 Interest expense (3.2) — 7.6 Derivatives designated as investment hedge Foreign exchange contracts 6.6 (14.2) — Other income (expense), net — — — Total $ 12.7 $ (25.8) $ 1.6 $ (5.1) $ (2.0) $ 4.5
Effect of Derivative Instruments Not Designated As Hedging Instruments	The following table provides the effect derivative instruments not designated as hedging instruments had on net income ($ in millions): Derivatives Not Designated as Cash Flow Hedging Instruments Amount of Gain / (Loss) Recognized in Other Income / Expense 2021 2020 2019 Foreign exchange contracts $ (2.2) $ 0.1 $ 1.1 Total $ (2.2) $ 0.1 $ 1.1

Accrued Expenses (Tables)

Accrued Expenses (Tables)	12 Months Ended
	Dec. 31, 2021
Payables and Accruals [Abstract]
Schedule of Accrued Liabilities	Accrued expenses consisted of the following ($ in millions): December 31, 2021 2020 Accrued salaries, wages and employee benefits $ 42.0 $ 48.7 Other accrued expenses 67.3 52.2 Total $ 109.3 $ 100.9

Income Taxes (Tables)

Income Taxes (Tables)	12 Months Ended
	Dec. 31, 2021
Income Tax Disclosure [Abstract]
Schedule of Income Before Income Taxes	For financial reporting purposes, income before income taxes includes the following components ($ in millions): For the Years Ended December 31, 2021 2020 2019 U.S. $ 28.5 $ 29.1 $ 60.0 Foreign 44.6 68.2 36.9 Total $ 73.1 $ 97.3 $ 96.9
Schedule of Components of Income Tax Expense (Benefit), Continuing Operations	An analysis of the provision (benefit) for income taxes from continuing operations follows ($ in millions): For the Years Ended December 31, 2021 2020 2019 Current income taxes: U.S. federal $ 5.0 $ 7.3 $ 8.1 U.S. state 0.7 1.5 0.8 Foreign 11.9 14.8 9.7 17.6 23.6 18.6 Deferred income taxes: U.S. federal 7.5 (5.3) 2.3 U.S. state (0.2) 1.0 (1.9) Foreign (34.3) (0.9) (3.8) (27.0) (5.2) (3.4) Total $ (9.4) $ 18.4 $ 15.2
Schedule of Reconciliation of Income Tax Rate	A reconciliation of income taxes computed at the U.S. Federal statutory income tax rate to the provision for income taxes is as follows ($ in millions): For the Years Ended December 31, 2021 2020 2019 Amount Percent Amount Percent Amount Percent Tax provision at U.S. statutory rate $ 15.4 21.0 % $ 20.4 21.0 % $ 20.3 21.0 % Foreign income tax rate differential 2.9 4.0 2.7 2.7 0.6 0.5 Income from passthrough entities 4.2 5.7 2.3 2.3 1.7 1.6 Branch earnings (0.9) (1.2) — — — — Global intangible low tax inclusion 4.7 6.4 4.8 4.8 (0.1) (0.1) Subpart F income 1.0 1.3 0.6 0.6 1.0 1.0 State income tax, net of federal benefit 0.5 0.7 1.8 1.8 (0.2) (0.2) Adjustments to valuation allowances 57.0 78.0 (3.9) (3.9) (3.7) (3.8) Capital loss carryforward (86.5) (118.3) — — — — Transition tax — — — — (0.7) (0.6) Other tax credits (1.4) (2.0) (0.8) (0.8) (2.0) (2.1) Foreign tax credits (11.0) (15.0) (9.9) (10.0) (3.5) (3.6) Other foreign operational taxes 3.0 4.1 3.5 3.5 2.9 3.0 Base erosion minimum tax amount 2.4 3.3 — — — — Non-deductible compensation 1.9 2.6 0.4 0.4 1.1 1.1 Other, net (2.6) (3.5) (3.5) (3.5) (2.2) (2.1) Provision for income taxes $ (9.4) (12.9) % $ 18.4 18.9 % $ 15.2 15.7 %
Schedule of Deferred Tax Assets (Liabilities)	Net deferred income tax assets (liabilities) were comprised of the following ($ in millions): December 31, 2021 2020 Deferred Tax Assets Receivable allowances $ 0.9 $ 0.5 Postretirement and other employee benefits 17.1 21.0 Derivatives — 2.5 Net operating loss and tax credit carryforwards 129.6 104.4 Capital loss carryforward 103.1 12.1 Accruals and other liabilities 0.4 0.7 Intangibles — 37.6 Other 12.6 4.4 263.7 183.2 Less: Valuation allowance (232.3) (166.6) Net deferred income tax assets $ 31.4 $ 16.6 Deferred Tax Liabilities Net property, plant and equipment $ (60.3) $ (55.7) Intangibles (31.3) — Investment in subsidiaries (0.6) (3.2) Derivatives (0.3) — Other (0.1) (0.3) Net deferred income tax liabilities $ (92.6) $ (59.2) Total net deferred income tax liabilities $ (61.2) $ (42.6)
Summary of Operating Loss Carryforwards	As of December 31, 2021, the Company had approximately $111.8 million of tax-effected operating loss carryforwards available to further reduce future taxable income in various jurisdictions which will expire on various dates as follows: 2021 2022-2041 $ 26.7 Indefinite 85.1 $ 111.8
Schedule of Unrecognized Tax Benefits	December 31, 2021 2020 2019 Uncertain tax position balance at beginning of year $ 2.0 $ 1.7 $ 1.1 Increases related to current year tax positions 0.3 0.3 0.6 Decreases related to expiration of statute of limitations (0.7) — — Current year acquisition $ 8.2 $ — $ — Uncertain tax position balance at end of year $ 9.8 $ 2.0 $ 1.7

Postretirement and Other Bene_2

Postretirement and Other Benefits (Tables)	12 Months Ended
	Dec. 31, 2021
Retirement Benefits [Abstract]
Schedule of Net Funded Status	The funded status of these plans as of December 31, 2021 and 2020 was as follows ($ in millions): Pension Benefits U.S. France U.K. 2021 2020 2021 2020 2021 2020 Change in Projected Benefit Obligation, or PBO: PBO at beginning of year $ 125.1 $ 119.9 $ 35.8 $ 31.9 $ — $ — Acquisition (1) 1.9 — 5.4 — 200.1 — Service cost — — 1.6 1.3 — — Interest cost 2.8 3.7 0.1 0.2 2.5 — Actuarial (gain) loss (2.6) 9.7 (2.1) 0.6 4.3 — Participant contributions — — 0.8 0.5 — — Gross benefits paid (8.8) (8.2) (2.7) (1.7) (10.7) — Currency translation effect — — (2.9) 3.0 (3.9) — PBO at end of year $ 118.4 $ 125.1 $ 36.0 $ 35.8 $ 192.3 $ — Change in Plan Assets: Fair value of plan assets at beginning of year $ 134.4 $ 125.8 $ 0.8 $ 1.1 $ — $ — Acquisition(1) — — — — 211.4 — Actual return on plan assets (0.9) 16.8 0.1 — 10.9 — Employer contributions — 1.8 1.2 2.9 — Participant contributions — — 0.1 — — — Gross benefits paid (8.8) (8.2) (2.2) (1.6) (10.8) — Currency translation effect — — (0.1) 0.1 (4.3) — Fair value of plan assets at end of year $ 124.7 $ 134.4 $ 0.5 $ 0.8 $ 210.1 $ — Funded status at end of year $ 6.3 $ 9.3 $ (35.5) $ (35.0) $ 17.8 $ — (1) Amounts attributable to Scapa are included effective April 15, 2021
Schedule of Accumulated Benefit Obligations and PBO excess of Fair Value of Pension Plan Assets	The PBO, ABO and fair value of pension plan assets for the Company's U.S., U.K., and French defined benefit pension plans as of December 31, 2021 and 2020 as follows ($ in millions): U.S. France U.K. 2021 2020 2021 2020 2021 2020 PBO $ 118.4 $ 125.1 $ 36.0 $ 35.8 192.3 $ — ABO 118.4 125.1 36.0 35.8 192.3 — Fair value of plan assets 124.7 134.4 0.5 0.8 210.1 —
Schedule of Defined Benefit Plan Amounts Recognized in Accumulated Other Comprehensive Income	As of December 31, 2021, the pre-tax amounts in accumulated other comprehensive income that have not been recognized as components of net periodic benefit cost for the U.S., U.K., and French pension plans are as follows ($ in millions): Pension Benefits U.S. France U.K. Accumulated loss (gain) $ 16.9 $ 11.1 $ (3.5) Prior service credit — (2.0) — Accumulated other comprehensive loss (gain) $ 16.9 $ 9.1 $ (3.5)
Schedule of Assumptions Used	The weighted average assumptions used to determine benefit obligations as of December 31, 2021 and 2020 were as follows: Pension Benefits U.S. France U.K. 2021 2020 2021 2020 2021 2020 Discount rate 2.73 % 2.30 % 0.88 % 0.32 % 1.85 % — % Rate of compensation increase — % — % 2.01 % 1.97 % — % — % Rate of pension increase — % — % — % — % 3.26 % — % Pension Benefits U.S. France U.K. 2021 2020 2019 2021 2020 2019 2021 2020 2019 Discount rate 2.31 % 3.20 % 4.29 % 0.88 % 0.53 % 1.28 % 1.95 % — % — % Expected long-term rate of return on plan assets 3.44 % 4.41 % 5.14 % 3.00 % 3.00 % 3.00 % 3.17 % — % — % Rate of compensation increase — % — % — % 2.01 % 1.97 % 1.96 % — % — % — %
Schedule of Net Benefit Costs	The components of net pension benefit costs for U.S., U.K., and French employees during the years ended December 31, 2021, 2020 and 2019 were as follows ($ in millions): U.S. Pension Benefits French Pension Benefits U.K. Pension Benefits 2021 2020 2019 2021 2020 2019 2021 2020 2019 Service cost $ — $ — $ — $ 1.6 $ 1.3 $ 1.0 $ — $ — $ — Interest cost 2.8 3.7 4.6 0.1 0.2 0.4 2.5 — — Expected return on plan assets (3.9) (4.9) (5.8) — (0.1) (0.1) (2.7) — — Amortizations and other 3.2 3.3 2.0 0.8 1.0 0.9 — — — Net periodic benefit cost $ 2.1 $ 2.1 $ 0.8 $ 2.5 $ 2.4 $ 2.2 $ (0.2) $ — $ —
Schedule of Allocation of Plan Assets	The U.S., U.K., and French pension plans' asset allocations by category at December 31, 2021 and 2020 were as follows: U.S. France U.K. 2021 2020 2021 2020 2021 2020 Asset Category Cash and cash equivalents 1% 1% 11% 36% 1% —% Equity securities* Domestic large cap 2 2 16 30 — — Domestic small cap 1 1 — — — — International 6 6 — — 10 — Fixed income securities 90 90 67 32 87 — Alternative investments** — — 6 2 2 — Total 100% 100% 100% 100% 100% —% * None of the Company's pension plan assets are targeted for investment in SWM stock, except that it is possible that one or more mutual funds held by the plan could hold shares of SWM. ** Investments in this category under the U.S. and U.K. pension plan may include hedge funds and may include real estate under the French pension plan. The following table sets forth by level, within the fair value hierarchy, the U.S., French and U.K. pension plans' assets at fair value as of December 31, 2021 ($ in millions): U.S. France U.K. Plan Asset Category Total Other* Level 1 Level 2 Level 3 Total Level 1 Level 2 Total Level 1 Level 2 Cash equivalents $ 1.1 $ — $ 1.1 $ — $ — $ 0.1 $ 0.1 $ — $ 2.5 $ 2.5 $ — Equity securities Domestic large cap 3.7 3.7 — — — 0.1 0.1 — — — — Domestic small cap 1.2 1.2 — — — — — — — — — International 7.4 7.4 — — — — — — 20.8 — 20.8 Fixed income securities US Government securities 43.1 43.1 — — — — — — — — — Corporate bonds 48.4 48.4 — — — — — — 95.2 — 95.2 International bonds 2.1 2.1 — — — — — — 86.6 — 86.6 Other 17.7 17.7 — — — 0.3 — 0.3 3.3 — 3.3 Alternative investments** — — — — — — — — 1.7 — 1.7 Total $ 124.7 $ 123.6 $ 1.1 $ — $ — $ 0.5 $ 0.2 $ 0.3 $ 210.1 $ 2.5 $ 207.6 The following table sets forth by level, within the fair value hierarchy, the U.S. and French pension plans' assets at fair value as of December 31, 2020 ($ in millions): U.S. France Plan Asset Category Total Other* Level 1 Level 2 Level 3 Total Level 1 Level 2 Cash equivalents $ 1.0 $ — $ 1.0 $ — $ — $ 0.3 $ 0.3 $ — Equity securities Domestic large cap 2.7 2.7 — — — 0.2 0.2 — Domestic small cap 1.3 1.3 — — — — — — International 8.2 8.2 — — — — — — Fixed income securities US Government securities 13.9 13.9 — — — — — — Corporate bonds 99.6 99.6 — — — — — — International bonds 1.2 1.2 — — — — — — Other 6.5 6.5 — — — 0.3 — 0.3 Total $ 134.4 $ 133.4 $ 1.0 $ — $ — $ 0.8 $ 0.5 $ 0.3 * Investments held in Mutual Funds are measured at Net Asset Value ("NAV"), as determined by the fund manager, as a practical expedient and not are subject to hierarchy level classification disclosure.
Schedule of Expected Benefit Payments	The Company expects the following estimated undiscounted future pension benefit payments for the United States, France and the U.K., which are to be made from pension plan and employer assets, net of amounts that will be funded from retiree contributions, and which reflect expected future service, as appropriate ($ in millions): U.S. France U.K. Pension Pension Pension 2022 $ 8.7 $ 0.4 $ 10.9 2023 8.4 1.3 11.2 2024 8.3 1.0 11.4 2025 8.2 1.7 11.8 2026 8.0 1.3 12.1 2027 - 2031 36.6 14.1 65.3

Stockholders' Equity (Tables)

Stockholders' Equity (Tables)	12 Months Ended
	Dec. 31, 2021
Equity [Abstract]
Schedule of Restricted Stock Activity	The following table presents restricted stock activity for the years 2021, 2020 and 2019: 2021 2020 2019 # of Shares Weighted Average Fair Value at Date of Grant # of Shares Weighted Average Fair Value at Date of Grant # of Shares Weighted Average Fair Value at Date of Grant Nonvested restricted shares outstanding at January 1 405,299 $ 34.96 221,622 $ 37.08 184,190 $ 40.33 Granted 207,135 39.10 339,454 34.27 155,982 35.62 Forfeited (4,345) 33.37 (36,749) 33.98 (8,869) 41.34 Vested (230,360) 35.71 (119,028) 37.15 (109,681) 40.12 Nonvested restricted shares outstanding at December 31 377,729 $ 36.78 405,299 $ 34.96 221,622 $ 37.08
Reconciliation of the Common and Potential Common Shares Outstanding Used in Earnings Per Share Calculation	A reconciliation of the average number of common and potential common shares outstanding used in the calculations of basic and diluted net income per share follows ($ in millions, shares in thousands): For the Years Ended December 31, 2021 2020 2019 Numerator (basic and diluted): Net income $ 88.9 $ 83.8 $ 85.8 Less: Dividends paid to participating securities (0.6) (0.7) (0.4) Less: Undistributed earnings available to participating securities (0.5) (0.4) (0.2) Undistributed and distributed earnings available to common stockholders $ 87.8 $ 82.7 $ 85.2 Denominator: Average number of common shares outstanding 31,030.4 30,832.7 30,652.2 Effect of dilutive stock-based compensation 369.9 271.5 186.1 Average number of common and potential common shares outstanding 31,400.3 31,104.2 30,838.3

Segment Information (Tables)

Segment Information (Tables)	12 Months Ended
	Dec. 31, 2021
Segment Reporting [Abstract]
Schedule of Segment Reporting Information, by Segments	($ in millions) Net Sales For the Years Ended December 31, 2021 2020 2019 Advanced Materials & Structures $ 930.7 64.6 % $ 543.5 50.6 % $ 477.2 46.7 % Engineered Papers 509.3 35.4 530.9 49.4 545.6 53.3 Consolidated $ 1,440.0 100.0 % $ 1,074.4 100.0 % $ 1,022.8 100.0 % ($ in millions) Operating Profit For the Years Ended December 31, 2021 2020 2019 Advanced Materials & Structures $ 61.6 73.9 % $ 64.8 50.3 % $ 64.3 48.0 % Engineered Papers 100.5 120.6 116.8 90.7 119.2 89.0 Unallocated (78.8) (94.6) (52.8) (41.0) (49.5) (37.0) Consolidated $ 83.3 99.9 % $ 128.8 100.0 % $ 134.0 100.0 % ($ in millions) Capital Spending Depreciation 2021 2020 2019 2021 2020 2019 Advanced Materials & Structures $ 19.5 $ 14.5 $ 16.1 $ 25.9 $ 14.5 $ 12.8 Engineered Papers 16.4 15.5 12.0 21.7 27.5 22.8 Unallocated — 0.1 0.5 0.2 0.2 0.2 Consolidated $ 35.9 $ 30.1 $ 28.6 $ 47.8 $ 42.2 $ 35.8
Net Sales Attributed to Geographic Locations Based on the Location of the Company's Direct Customers	Long-lived assets by geographic area as of year-end were as follows ($ in millions): Long-Lived Assets 2021 2020 2019 U.S. $ 173.9 $ 122.1 $ 118.5 France 169.1 169.3 158.8 U.K. 65.4 10.3 9.9 Brazil 15.3 15.2 19.5 Poland 10.4 12.9 14.7 Other foreign countries 43.7 22.1 20.8 Consolidated $ 477.8 $ 351.9 $ 342.2

Supplemental Disclosures (Table

Supplemental Disclosures (Tables)	12 Months Ended
	Dec. 31, 2021
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Allowance for Doubtful Accounts	Accounts receivable, net are summarized as follows ($ in millions): December 31, 2021 2020 Trade receivables $ 208.9 $ 130.9 Business tax credits, including VAT 7.8 4.0 Hedge contracts receivable 0.4 0.3 Other receivables 22.3 14.4 Less allowance for doubtful accounts and sales discounts (1.4) (1.1) Total accounts receivable, net $ 238.0 $ 148.5 Analysis of Allowances for Doubtful Accounts: ($ in millions) For the Years Ended December 31, 2021 2020 2019 Allowance for Doubtful Accounts Beginning balance $ 1.1 $ 1.5 $ 1.7 Bad debt expense 0.3 1.0 0.4 Recoveries (0.1) — (0.3) Write-offs and discounts 0.1 (1.4) (0.3) Ending balance $ 1.4 $ 1.1 $ 1.5
Schedule of Cash Flow, Supplemental Disclosures	Supplemental Cash Flow Information ($ in millions) For the Years Ended December 31, 2021 2020 2019 Interest paid $ 47.4 $ 31.4 $ 29.1 Income taxes paid 22.4 14.8 20.8 Capital spending in accounts payable and accrued liabilities 6.3 5.2 5.9

Quarterly Financial Informati_2

Quarterly Financial Information (Unaudited) (Tables)	12 Months Ended
	Dec. 31, 2021
Quarterly Financial Information Disclosure [Abstract]
Schedule of Quarterly Financial Information	The following tables summarize the Company's unaudited quarterly financial data for the years ended December 31, 2021 and 2020 ($ in millions, except per share amounts): 2021 First Second Third Fourth Year Net sales $ 288.2 $ 377.8 $ 383.6 $ 390.4 $ 1,440.0 Gross profit 80.8 88.1 85.2 76.2 330.3 Restructuring and impairment expense 1.7 2.3 1.9 4.2 10.1 Operating profit 33.5 15.9 23.0 10.9 83.3 Net income $ 21.6 $ 1.8 $ 12.2 $ 53.3 $ 88.9 Net income per share: Net income per share - basic $ 0.69 $ 0.06 $ 0.38 $ 1.70 $ 2.83 Net income per share - diluted $ 0.68 $ 0.06 $ 0.38 $ 1.68 $ 2.80 2020 First Second Third Fourth Year Net sales $ 261.5 $ 254.2 $ 279.3 $ 279.4 $ 1,074.4 Gross profit 74.3 74.3 80.2 79.5 308.3 Restructuring and impairment expense 0.1 1.6 6.0 4.2 11.9 Operating profit 34.1 34.4 37.0 23.3 128.8 Net income $ 22.5 $ 21.5 $ 24.5 $ 15.3 $ 83.8 Net income per share: Net income per share - basic $ 0.72 $ 0.69 $ 0.78 $ 0.49 $ 2.68 Net income per share - diluted $ 0.72 $ 0.68 $ 0.78 $ 0.48 $ 2.66

General (Details)

General (Details)	12 Months Ended
	Dec. 31, 2021segmentjoint_ventureproduction_locationcountry
Schedule of Equity Method Investments [Line Items]
Number of operating segments | segment	2
Number of countries in which entity operates (more than) | country	90
Number of production locations | production_location	38
Joint venture
Schedule of Equity Method Investments [Line Items]
Ownership of joint ventures (percent)	50.00%
China
Schedule of Equity Method Investments [Line Items]
Ownership of joint ventures (percent)	50.00%
China | Joint venture
Schedule of Equity Method Investments [Line Items]
Ownership of joint ventures (percent)	50.00%
Number of joint ventures | joint_venture	2

Summary of Significant Accoun_4

Summary of Significant Accounting Policies - Narrative (Details)	3 Months Ended								12 Months Ended
	Dec. 31, 2021USD ($)revenue_sourcejoint_venture	Sep. 30, 2021USD ($)	Jun. 30, 2021USD ($)	Mar. 31, 2021USD ($)	Dec. 31, 2020USD ($)	Sep. 30, 2020USD ($)	Jun. 30, 2020USD ($)	Mar. 31, 2020USD ($)	Dec. 31, 2021USD ($)revenue_sourcejoint_venture	Dec. 31, 2020USD ($)	Dec. 31, 2019USD ($)
Schedule of Equity Method Investments [Line Items]
Total revenues	$ 390,400,000	$ 383,600,000	$ 377,800,000	$ 288,200,000	$ 279,400,000	$ 279,300,000	$ 254,200,000	$ 261,500,000	$ 1,440,000,000	$ 1,074,400,000	$ 1,022,800,000
Foreign currency transaction losses									7,300,000	900,000	1,400,000
Restricted cash	600,000				600,000				600,000	600,000
Acquisition costs									$ 8,700,000	1,100,000	0
Software useful life									7 years
Amortization of capitalized software									$ 3,000,000	2,100,000	1,900,000
Accumulated amortization of capitalized software costs	$ 58,900,000				$ 40,500,000				$ 58,900,000	40,500,000
Minimum | Restricted Stock
Schedule of Equity Method Investments [Line Items]
Share based compensation vesting period (years)									2 years
Minimum | Restricted Stock Plan
Schedule of Equity Method Investments [Line Items]
Plan performance period (years)									1 year
Minimum | Customer relationships
Schedule of Equity Method Investments [Line Items]
Estimated useful life									15 years
Minimum | Developed technology
Schedule of Equity Method Investments [Line Items]
Estimated useful life									4 years
Maximum | Restricted Stock
Schedule of Equity Method Investments [Line Items]
Share based compensation vesting period (years)									4 years
Maximum | Customer relationships
Schedule of Equity Method Investments [Line Items]
Estimated useful life									23 years
Maximum | Developed technology
Schedule of Equity Method Investments [Line Items]
Estimated useful life									20 years
Product | materials Conversion
Schedule of Equity Method Investments [Line Items]
Number of revenue | revenue_source	2								2
Royalty
Schedule of Equity Method Investments [Line Items]
Total revenues									$ 8,800,000	$ 7,500,000	$ 6,800,000
Joint venture
Schedule of Equity Method Investments [Line Items]
Ownership of joint ventures (percent)	50.00%								50.00%
China
Schedule of Equity Method Investments [Line Items]
Ownership of joint ventures (percent)	50.00%								50.00%
China | Joint venture
Schedule of Equity Method Investments [Line Items]
Number of joint ventures | joint_venture	2								2
Ownership of joint ventures (percent)	50.00%								50.00%

Summary of Significant Accoun_5

Summary of Significant Accounting Policies - Components of Accumulated Other Comprehensive Income (Details) - USD ($) $ in Millions	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Accumulated Other Comprehensive Income (Loss) [Line Items]
Accumulated other comprehensive loss	$ 682.2	$ 649.6	$ 597.7	$ 557.9
Accumulated pension and OPEB liability adjustments
Accumulated Other Comprehensive Income (Loss) [Line Items]
Accumulated other comprehensive loss, income tax benefit	8.9	11.6
Accumulated other comprehensive loss	(14.4)	(20.5)
Accumulated unrealized loss on derivative instruments
Accumulated Other Comprehensive Income (Loss) [Line Items]
Accumulated other comprehensive loss, income tax benefit	2.1	2.8
Accumulated other comprehensive loss	(1.9)	(13.1)
Accumulated unrealized foreign currency translation adjustments
Accumulated Other Comprehensive Income (Loss) [Line Items]
Accumulated other comprehensive loss, income tax benefit	9.5	10.1
Accumulated other comprehensive loss	(102.7)	(78.3)
Accumulated other comprehensive loss
Accumulated Other Comprehensive Income (Loss) [Line Items]
Accumulated other comprehensive loss	$ (119)	$ (111.9)	$ (122.6)	$ (124.5)

Summary of Significant Accoun_6

Summary of Significant Accounting Policies - Changes in the Components of Accumulated Other Comprehensive Loss (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Accumulated Other Comprehensive Income (Loss) [Line Items]
Pre-tax	$ (3)	$ 5.7
Tax	(4.1)	5
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent, Total	(7.1)	10.7	$ 1.9
Including cumulative effect adjustment
Accumulated Other Comprehensive Income (Loss) [Line Items]
Pre-tax			(2.9)
Tax			4.8
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent, Total			1.9
Pension and OPEB liability adjustments
Accumulated Other Comprehensive Income (Loss) [Line Items]
Pre-tax	8.9	5
Tax	(2.8)	(1.2)
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent, Total	6.1	3.8
Pension and OPEB liability adjustments | Including cumulative effect adjustment
Accumulated Other Comprehensive Income (Loss) [Line Items]
Pre-tax			2.5
Tax			1.4
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent, Total			3.9
Derivative instrument adjustments
Accumulated Other Comprehensive Income (Loss) [Line Items]
Pre-tax	11.9	(10.8)
Tax	(0.7)	1.2
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent, Total	11.2	(9.6)
Derivative instrument adjustments | Including cumulative effect adjustment
Accumulated Other Comprehensive Income (Loss) [Line Items]
Pre-tax			(2.9)
Tax			0
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent, Total			(2.9)
Unrealized foreign currency translation adjustments
Accumulated Other Comprehensive Income (Loss) [Line Items]
Pre-tax	(23.8)	11.5
Tax	(0.6)	5
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent, Total	$ (24.4)	$ 16.5
Unrealized foreign currency translation adjustments | Including cumulative effect adjustment
Accumulated Other Comprehensive Income (Loss) [Line Items]
Pre-tax			(2.5)
Tax			3.4
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent, Total			$ 0.9

Revenue Recognition - Disaggreg

Revenue Recognition - Disaggregation of revenue (Details) - USD ($) $ in Millions	3 Months Ended								12 Months Ended
	Dec. 31, 2021	Sep. 30, 2021	Jun. 30, 2021	Mar. 31, 2021	Dec. 31, 2020	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Revenue from External Customer [Line Items]
Total revenues	$ 390.4	$ 383.6	$ 377.8	$ 288.2	$ 279.4	$ 279.3	$ 254.2	$ 261.5	$ 1,440	$ 1,074.4	$ 1,022.8
AMS
Revenue from External Customer [Line Items]
Total revenues									930.7	543.5	477.2
EP
Revenue from External Customer [Line Items]
Total revenues									509.3	530.9	545.6
U.S.
Revenue from External Customer [Line Items]
Total revenues									718.3	538.6	514.1
U.S. | AMS
Revenue from External Customer [Line Items]
Total revenues									562.5	376.7	331.3
U.S. | EP
Revenue from External Customer [Line Items]
Total revenues									155.8	161.9	182.8
Europe and the former Commonwealth of Independent States
Revenue from External Customer [Line Items]
Total revenues									383.3	229.7	218.4
Europe and the former Commonwealth of Independent States | AMS
Revenue from External Customer [Line Items]
Total revenues									193.8	47.5	45.8
Europe and the former Commonwealth of Independent States | EP
Revenue from External Customer [Line Items]
Total revenues									189.5	182.2	172.6
Asia/Pacific (including China)
Revenue from External Customer [Line Items]
Total revenues									211.1	205.3	172.6
Asia/Pacific (including China) | AMS
Revenue from External Customer [Line Items]
Total revenues									124.9	94.6	77.6
Asia/Pacific (including China) | EP
Revenue from External Customer [Line Items]
Total revenues									86.2	110.7	95
Americas (excluding U.S.)
Revenue from External Customer [Line Items]
Total revenues									77.9	52.9	53.2
Americas (excluding U.S.) | AMS
Revenue from External Customer [Line Items]
Total revenues									31.4	9.3	7.6
Americas (excluding U.S.) | EP
Revenue from External Customer [Line Items]
Total revenues									46.5	43.6	45.6
Other foreign countries
Revenue from External Customer [Line Items]
Total revenues									49.4	47.9	64.5
Other foreign countries | AMS
Revenue from External Customer [Line Items]
Total revenues									18.1	15.4	14.9
Other foreign countries | EP
Revenue from External Customer [Line Items]
Total revenues									$ 31.3	$ 32.5	$ 49.6

Revenue Recognition - Disaggr_2

Revenue Recognition - Disaggregated of percentage (Details) - Revenue - End market	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Product Information [Line Items]
Total revenues	100.00%	100.00%
Healthcare
Product Information [Line Items]
Total revenues	24.00%	14.00%
Construction
Product Information [Line Items]
Total revenues	20.00%	23.00%
Industrial
Product Information [Line Items]
Total revenues	20.00%	17.00%
Transportation
Product Information [Line Items]
Total revenues	18.00%	22.00%
Filtration
Product Information [Line Items]
Total revenues	18.00%	24.00%

Leases - Narrative (Details)

Leases - Narrative (Details)	12 Months Ended
	Dec. 31, 2021lease_renewal
Leases [Abstract]
Number of finance renewals (or more)	1
Number of operating renewals (or more)	1

Leases - Components of Right-Of

Leases - Components of Right-Of-Use Assets and Lease Liabilities (Details) - USD ($) $ in Millions	Dec. 31, 2021	Dec. 31, 2020
Assets
Operating Lease, Right-of-Use Asset, Statement of Financial Position [Extensible Enumeration]	Other Assets, Noncurrent	Other Assets, Noncurrent
Operating lease right-of-use assets	$ 25.1	$ 19.8
Finance lease right-of-use assets	2.2	3
Total right of use assets	$ 27.3	$ 22.8
Liabilities
Operating Lease, Liability, Current, Statement of Financial Position [Extensible List]	Accrued expenses	Accrued expenses
Operating Lease, Liability, Noncurrent, Statement of Financial Position [Extensible List]	Other Liabilities, Noncurrent	Other Liabilities, Noncurrent
Finance Lease, Liability, Current, Statement of Financial Position [Extensible List]	Current debt	Current debt
Finance Lease, Liability, Noncurrent, Statement of Financial Position [Extensible List]	Long-term debt	Long-term debt
Current operating lease obligation	$ 7.3	$ 5.2
Long-term operating lease obligation	18.7	15.6
Total operating lease obligation	26	20.8
Current finance lease obligation	0.5	0.5
Long-term finance lease obligation	2.3	3
Total finance lease obligation	$ 2.8	$ 3.5

Leases - Components of Lease Ex

Leases - Components of Lease Expense (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Lease Cost
Interest expense on lease liabilities	$ 0.7	$ 0.2
Amortization of right-of-use assets	0.9	0.5
Operating lease cost	8.4	6.8
Short-term lease expense	2.3	0.4
Total lease cost	$ 12.3	$ 7.9

Leases - Maturity of Lease Liab

Leases - Maturity of Lease Liabilities (Details) - USD ($) $ in Millions	Dec. 31, 2021	Dec. 31, 2020
Finance
2022	$ 0.7
2023	0.6
2024	0.5
2025	0.5
2026	0.5
Thereafter	0.4
Total lease payments	3.2
Less: Interest	0.4
Present value of lease liabilities	2.8	$ 3.5
Operating
2022	8.5
2023	6
2024	5
2025	3.7
2026	2.3
Thereafter	4.3
Total lease payments	29.8
Less: Interest	3.8
Present value of lease liabilities	26	$ 20.8
Total
2022	9.2
2023	6.6
2024	5.5
2025	4.2
2026	2.8
Thereafter	4.7
Total lease payments	33
Less: Interest	4.2
Present value of lease liabilities	$ 28.8

Leases - Lease Term and Discoun

Leases - Lease Term and Discount Rate (Details)	Dec. 31, 2021	Dec. 31, 2020
Weighted-average remaining lease term (years)
Operating leases	4 years 10 months 24 days	5 years 9 months 18 days
Finance leases	5 years 6 months	6 years 3 months 18 days
Weighted-average discount rate
Operating leases	5.44%	6.19%
Finance leases	5.22%	5.26%

Leases - Other Information (Det

Leases - Other Information (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Cash paid for amounts included in the measurement of lease liabilities
Operating cash flows from operating leases	$ 8.7	$ 6.9
Operating cash flows from finance leases	0.7	0.2
Leased assets obtained in exchange for new finance lease liabilities	15.1	0.4
Leased assets obtained in exchange for new operating lease liabilities	$ 10	$ 3.9

Business Acquisitions - Narrati

Business Acquisitions - Narrative (Details) $ in Millions	Apr. 15, 2021USD ($)	Mar. 13, 2020USD ($)facility	Dec. 31, 2021USD ($)	Dec. 31, 2021USD ($)	Dec. 31, 2021USD ($)	Dec. 31, 2020USD ($)	Dec. 31, 2019USD ($)
Business Acquisition [Line Items]
Cash consideration, net of cash and cash equivalents acquired					$ 630.6	$ 169.3	$ 0
Scapa
Business Acquisition [Line Items]
Cash consideration	$ 630.6
Cash consideration, net of cash and cash equivalents acquired	22.7
Business acquisition purchase	568.9
Repayment of debt	75.9
Repayment of Acquisition costs	$ 8.5
Deferred income tax liabilities			$ 15.8	$ (15.8)
Property, plant and equipment			8.1	8.1
Uncertain tax positions			7.2
Other liabilities				7.3
Other assets			$ 3	$ (3)
Integration related costs					8.7
Pro forma net income (decrease)					$ 10.3	(43.8)
Tekra
Business Acquisition [Line Items]
Integration related costs						$ 1.1
Equity interest acquired (percent)		100.00%
Number of manufacturing facilities | facility		2
Consideration transferred		$ 169.3
Cash and cash equivalents acquired		$ 1.6

Business Acquisitions - Schedul

Business Acquisitions - Schedule of Recognized Identifiable Assets Acquired and Liabilities Assumed (Details) - USD ($) $ in Millions	6 Months Ended	9 Months Ended
	Dec. 31, 2021	Dec. 31, 2021	Apr. 15, 2021	Dec. 31, 2020	Mar. 13, 2020	Dec. 31, 2019
Business Acquisition [Line Items]
Goodwill	$ 648.3	$ 648.3		$ 403.7		$ 337.4
Scapa
Business Acquisition [Line Items]
Cash and cash equivalents	22.7	22.7	$ 22.7
Accounts receivable	67.7	67.7	67.7
Inventory	60	60	60.9
Other current assets	9.7	9.7	9.8
Property, plant and equipment	160.2	160.2	152.1
Identifiable intangible assets	246.2	246.2	246.2
Other assets	23.3	23.3	26.3
Total assets	589.8	589.8	585.7
Current debt	15	15	15
Accounts payable and other current liabilities	85.8	85.8	85.9
Deferred income tax liabilities	45.7	45.7	61.5
Other liabilities	40.4	40.4	33.1
Net assets acquired	402.9	402.9	390.2
Goodwill	250.4	250.4	263.1
Total consideration	653.3	653.3	$ 653.3
Adjustments
Cash and cash equivalents		0
Accounts receivable		0
Inventory		(0.9)
Other current assets		(0.1)
Property, plant and equipment	8.1	8.1
Identifiable intangible assets		0
Other assets	3	(3)
Total assets		4.1
Current debt		0
Accounts payable and other current liabilities		(0.1)
Deferred income tax liabilities	$ 15.8	(15.8)
Other liabilities		7.3
Net assets acquired		12.7
Goodwill		(12.7)
Total consideration		$ 0
Tekra
Business Acquisition [Line Items]
Cash and cash equivalents					$ 1.6
Accounts receivable					8.6
Inventory					14.2
Other current assets					0.2
Property, plant and equipment					7.3
Identifiable intangible assets					81.8
Other assets					3.7
Total assets					117.4
Accounts payable					3
Other current liabilities					2
Other liabilities					2.7
Net assets acquired					109.7
Goodwill					61.2
Total consideration					$ 170.9

Business Acquisitions -Schedule

Business Acquisitions -Schedule of Intangible Assets (Details) - USD ($) $ in Millions	Apr. 15, 2021	Mar. 13, 2020
Scapa
Business Acquisition [Line Items]
Total amortizable intangible assets	$ 246.2
Scapa | Customer relationships
Business Acquisition [Line Items]
Total amortizable intangible assets	$ 205.4
Weighted-Average Amortization Period (Years)	15 years
Scapa | Tradenames and other
Business Acquisition [Line Items]
Total amortizable intangible assets	$ 7.7
Weighted-Average Amortization Period (Years)	10 years
Scapa | Developed technology
Business Acquisition [Line Items]
Total amortizable intangible assets	$ 33.1
Weighted-Average Amortization Period (Years)	7 years
Tekra
Business Acquisition [Line Items]
Total amortizable intangible assets		$ 81.8
Tekra | Customer relationships
Business Acquisition [Line Items]
Total amortizable intangible assets		$ 63
Weighted-Average Amortization Period (Years)		15 years
Tekra | Tradenames and other
Business Acquisition [Line Items]
Total amortizable intangible assets		$ 10.8
Weighted-Average Amortization Period (Years)		15 years
Tekra | Developed technology
Business Acquisition [Line Items]
Total amortizable intangible assets		$ 8
Weighted-Average Amortization Period (Years)		10 years

Business Acquisitions - Sched_2

Business Acquisitions - Schedule of Sales and Income from Business Combination (Details) - USD ($) $ in Millions	9 Months Ended	10 Months Ended	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2021	Dec. 31, 2020
Scapa
Business Acquisition, Pro Forma Information, Nonrecurring Adjustment [Line Items]
Net sales	$ 305.6		$ 1,570.6	$ 1,456.8
Net income	$ 0.6		$ 101.2	(20.8)
Restructuring and impairment of goodwill and intangible assets				$ 71.1
Tekra
Business Acquisition, Pro Forma Information, Nonrecurring Adjustment [Line Items]
Net sales		$ 77.3
Net income		$ 1.9

Accounts Receivable (Details)

Accounts Receivable (Details) - USD ($) $ in Millions	Dec. 31, 2021	Dec. 31, 2020
Accounts Receivable [Line Items]
Less allowance for doubtful accounts and sales discounts	$ (1.4)	$ (1.1)
Total accounts receivable, net	238	148.5
Trade receivables
Accounts Receivable [Line Items]
Accounts receivable, gross	208.9	130.9
Business tax credits, including VAT
Accounts Receivable [Line Items]
Accounts receivable, gross	7.8	4
Hedge contracts receivable
Accounts Receivable [Line Items]
Accounts receivable, gross	0.4	0.3
Other receivables
Accounts Receivable [Line Items]
Accounts receivable, gross	$ 22.3	$ 14.4

Inventories (Details)

Inventories (Details) - USD ($) $ in Millions	Dec. 31, 2021	Dec. 31, 2020
Inventory Disclosure [Abstract]
Raw materials	$ 113.4	$ 65.3
Work in process	41.9	23.2
Finished goods	95.7	83.5
Supplies and other	8.5	7.7
Inventories	$ 259.5	$ 179.7

Property, Plant and Equipment_2

Property, Plant and Equipment (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Property, Plant and Equipment [Line Items]
Gross property, plant and equipment	$ 998.5	$ 705.1
Less: Accumulated depreciation	534.6	366.1
Property, plant and equipment, net	463.9	339
Depreciation expense	47.8	42.2	$ 35.8
Land and improvements
Property, Plant and Equipment [Line Items]
Gross property, plant and equipment	31.6	13.6
Buildings and improvements (20 to 40 years or remaining life of relevant lease)
Property, Plant and Equipment [Line Items]
Gross property, plant and equipment	$ 194.5	144
Buildings and improvements (20 to 40 years or remaining life of relevant lease) | Minimum
Property, Plant and Equipment [Line Items]
Property, plant and equipment, useful life	20 years
Buildings and improvements (20 to 40 years or remaining life of relevant lease) | Maximum
Property, Plant and Equipment [Line Items]
Property, plant and equipment, useful life	40 years
Machinery and equipment (5 to 20 years)
Property, Plant and Equipment [Line Items]
Gross property, plant and equipment	$ 739.8	524.4
Machinery and equipment (5 to 20 years) | Minimum
Property, Plant and Equipment [Line Items]
Property, plant and equipment, useful life	5 years
Machinery and equipment (5 to 20 years) | Maximum
Property, Plant and Equipment [Line Items]
Property, plant and equipment, useful life	20 years
Construction in progress
Property, Plant and Equipment [Line Items]
Gross property, plant and equipment	$ 32.6	$ 23.1

Joint Ventures - Narrative (Det

Joint Ventures - Narrative (Details) $ in Millions	12 Months Ended
	Dec. 31, 2021USD ($)joint_venture	Dec. 31, 2020USD ($)	Dec. 31, 2019USD ($)
Schedule of Equity Method Investments [Line Items]
Equity investment in joint ventures	$ 64.6
Joint venture
Schedule of Equity Method Investments [Line Items]
Ownership of joint ventures (percent)	50.00%
China
Schedule of Equity Method Investments [Line Items]
Ownership of joint ventures (percent)	50.00%
China | Joint venture
Schedule of Equity Method Investments [Line Items]
Number of joint ventures | joint_venture	2
Ownership of joint ventures (percent)	50.00%
Other (expense) income, net	$ 2.7	$ 2	$ 2.1
Equity investment in joint ventures	$ 64.6	$ 59.3

Goodwill - Narrative (Details)

Goodwill - Narrative (Details)	12 Months Ended
	Dec. 31, 2021USD ($)segment	Dec. 31, 2020USD ($)	Dec. 31, 2019USD ($)
Goodwill [Line Items]
Goodwill impairment	$ 0	$ 0	$ 0
Number of reportable segments | segment	2
AMS
Goodwill [Line Items]
Accumulated impairment losses	$ 0
EP
Goodwill [Line Items]
Accumulated impairment losses	$ 2,700,000

Goodwill - Schedule of Goodwill

Goodwill - Schedule of Goodwill (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Goodwill [Roll Forward]
Goodwill beginning balance	$ 403.7	$ 337.4
Goodwill acquired during the year	250.4	61.2
Foreign currency translation adjustments	(5.8)	5.1
Goodwill ending balance	648.3	403.7
Advanced Materials & Structures
Goodwill [Roll Forward]
Goodwill beginning balance	398.4	332.5
Goodwill acquired during the year	250.4	61.2
Foreign currency translation adjustments	(5.4)	4.7
Goodwill ending balance	643.4	398.4
Engineered Papers
Goodwill [Roll Forward]
Goodwill beginning balance	5.3	4.9
Goodwill acquired during the year	0	0
Foreign currency translation adjustments	(0.4)	0.4
Goodwill ending balance	$ 4.9	$ 5.3

Intangible Assets (Details)

Intangible Assets (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Indefinite-lived Intangible Assets (Excluding Goodwill) [Abstract]
Amortization expense of intangible assets	$ 39.7	$ 24.6	$ 20.3
Estimated Amortization Expense
2022	44.5
2023	44.5
2024	44.2
2025	43.4
2026	43.4
AMS
Amortized Intangible Assets
Gross Carrying Amount	639.6	402.4
Accumulated Amortization	145.7	108.2
Net Carrying Amount	493.9	294.2
AMS | Trade names
Indefinite-lived Intangible Assets (Excluding Goodwill) [Abstract]
Gross Carrying Amount	20	20.5
Net Carrying Amount	20	20.5
AMS | Customer relationships
Amortized Intangible Assets
Gross Carrying Amount	541.7	343.9
Accumulated Amortization	119.2	89.7
Net Carrying Amount	422.5	254.2
AMS | Developed technology
Amortized Intangible Assets
Gross Carrying Amount	74.6	42.4
Accumulated Amortization	20.7	14.2
Net Carrying Amount	53.9	28.2
AMS | Trade names
Amortized Intangible Assets
Gross Carrying Amount	18.9	11.7
Accumulated Amortization	2.7	1.4
Net Carrying Amount	16.2	10.3
AMS | Non-compete agreements
Amortized Intangible Assets
Gross Carrying Amount	2.9	2.9
Accumulated Amortization	2.5	2.4
Net Carrying Amount	0.4	0.5
AMS | Patents
Amortized Intangible Assets
Gross Carrying Amount	1.5	1.5
Accumulated Amortization	0.6	0.5
Net Carrying Amount	$ 0.9	$ 1

Other Assets (Details)

Other Assets (Details) - USD ($) $ in Millions	Dec. 31, 2021	Dec. 31, 2020
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]
Capitalized software costs, net of accumulated amortization	$ 13.9	$ 12.9
Grantor trust assets	21.6	18
Net pension assets	26.3	9.3
Long-term supplies inventory	4.9	6.6
Operating lease assets	25.1	19.8
Other assets	9.3	2.6
Total	$ 101.1	$ 69.2

Restructuring and Impairment _3

Restructuring and Impairment Activities - Narrative (Details) - USD ($) $ in Millions	Dec. 09, 2021	Dec. 31, 2021	Sep. 30, 2021	Jun. 30, 2021	Mar. 31, 2021	Dec. 31, 2020	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Restructuring Cost and Reserve [Line Items]
Restructuring and impairment expense		$ 4.2	$ 1.9	$ 2.3	$ 1.7	$ 4.2	$ 6	$ 1.6	$ 0.1	$ 10.1	$ 11.9	$ 3.7
Other restructuring costs										0.7	4.9	0
Accelerated depreciation and amortization										0.5	2.9	0
Spotswood New Jersey Facility Closing | Sold
Restructuring Cost and Reserve [Line Items]
Total proceeds	$ 34.4
Gain on disposal	$ 35.2
Cost Optimization Initiatives
Restructuring Cost and Reserve [Line Items]
Restructuring and impairment expense										4.7	6.7
Other restructuring costs											4.9
Write down value spare parts and consignment inventory											2
Accelerated depreciation and amortization											2.9
EP
Restructuring Cost and Reserve [Line Items]
Restructuring and impairment expense										8.2	11.3	2.6
Restructuring incurred to date		11.9								11.9
EP | Winkler, Manitoba Facility Closing
Restructuring Cost and Reserve [Line Items]
Restructuring and impairment expense										0.8
Other restructuring costs										0.7
Expected additional restructuring and impairment and restructuring related costs		$ 1.5								1.5
EP | Severance | France
Restructuring Cost and Reserve [Line Items]
Restructuring and impairment expense										2.7
EP | Other Manufacturing Facilities Closing
Restructuring Cost and Reserve [Line Items]
Restructuring and impairment expense											4.6	2.6
AMS
Restructuring Cost and Reserve [Line Items]
Restructuring and impairment expense										$ 1.9	$ 0.5	$ 1.1

Restructuring and Impairment _4

Restructuring and Impairment Activities - Restructuring And Related Charges (Details) - USD ($) $ in Millions	3 Months Ended								12 Months Ended
	Dec. 31, 2021	Sep. 30, 2021	Jun. 30, 2021	Mar. 31, 2021	Dec. 31, 2020	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Restructuring Cost and Reserve [Line Items]
Restructuring and impairment expense	$ 4.2	$ 1.9	$ 2.3	$ 1.7	$ 4.2	$ 6	$ 1.6	$ 0.1	$ 10.1	$ 11.9	$ 3.7
Accelerated depreciation and amortization									0.5	2.9	0
Spare parts and consignment inventory write-down to estimated net realizable value									0.2	2	0
Total other restructuring related charges - Cost of products sold									0.7	4.9	0
Total restructuring and impairment expense and other restructuring related charges									10.8	16.8	3.7
Severance
Restructuring Cost and Reserve [Line Items]
Restructuring and impairment expense									3.6	11.6	2.6
Other
Restructuring Cost and Reserve [Line Items]
Restructuring and impairment expense									4.9	0.3	1.1
Asset impairment
Restructuring Cost and Reserve [Line Items]
Restructuring and impairment expense									$ 1.6	$ 0	$ 0

Restructuring and Impairment _5

Restructuring and Impairment Activities - Restructuring Liabilities (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Restructuring Reserve [Roll Forward]
Balance at beginning of year	$ 7.4	$ 0.5
Accruals for announced programs	4.7	11.9
Cash payments	(5.7)	(5.2)
Exchange rate impacts	(0.2)	0.2
Balance at end of period	$ 6.2	$ 7.4

Debt - Schedule of Debt Summari

Debt - Schedule of Debt Summarized (Details) - USD ($) $ in Millions	Dec. 31, 2021	Dec. 31, 2020	Sep. 25, 2018
Debt Instrument [Line Items]
Finance lease obligations	$ 2.8	$ 3.5
Debt issuance costs	(16.1)	(4.6)
Total debt	1,270.3	593.3
Less: Current debt	(3.2)	(2.8)
Long-term debt	1,267.1	590.5
French employee profit sharing
Debt Instrument [Line Items]
Long-term debt, gross	4.1	5
Finance lease obligations
Debt Instrument [Line Items]
Finance lease obligations	2.8	3.5
Revolving credit agreement | Revolving Facility
Debt Instrument [Line Items]
Long-term debt, gross	393	50
Term loan A facility | Term Loan
Debt Instrument [Line Items]
Long-term debt, gross	193.5	195.5
Term loan B facility | Term Loan
Debt Instrument [Line Items]
Long-term debt, gross	$ 348.2	$ 0
6.875% senior unsecured notes due October 1, 2026, net of discount of $5.2 million and $6.1 million as of December 31, 2021 and 2020, respectively | Unsecured notes
Debt Instrument [Line Items]
Interest rate (percent)	6.875%	6.875%	6.875%
Unamortized discount	$ 5.2	$ 6.1
Long-term debt, gross	$ 344.8	$ 343.9

Debt - Narrative (Details)

Debt - Narrative (Details)	Jun. 30, 2023	Feb. 10, 2021USD ($)	Sep. 25, 2018USD ($)	Sep. 24, 2018USD ($)	Dec. 31, 2021USD ($)	Dec. 31, 2020USD ($)
Debt Instrument [Line Items]
Capitalized deferred debt issuance costs					$ 14,600,000
Debt issuance costs and discounts					16,100,000	$ 4,600,000
Interest expense
Debt Instrument [Line Items]
Amortization expense					3,100,000	1,300,000
Corporate Bond Securities
Debt Instrument [Line Items]
Fair market value of notes					$ 365,800,000	$ 371,000,000
French Employee Profit Sharing
Debt Instrument [Line Items]
Interest rate at period end (percent)					0.20%	0.20%
Bank Overdrafts
Debt Instrument [Line Items]
Interest rate at period end (percent)					0.55%	0.26%
Bank overdraft facilities					$ 1,800,000	$ 6,700,000
Bank overdraft outstanding					0	$ 0
Commitment fees					$ 0
Credit Agreement
Debt Instrument [Line Items]
Maximum borrowings under credit facility			$ 700,000,000
EBITDA ratio			5.50
Interest coverage ratio			3
Effective interest rate on debt facilities (percent)					4.04%	4.02%
Credit Agreement | Forecast
Debt Instrument [Line Items]
EBITDA ratio	4.50
EBITDA Ratio decrease over period	24 months
Revolving credit agreement | Revolving Facility
Debt Instrument [Line Items]
Maximum borrowings under credit facility				$ 500,000,000
Credit facility term				5 years
Average interest rate (percent)					2.38%
Term loan A facility | Term Loan
Debt Instrument [Line Items]
Credit facility term			7 years
Face amount			$ 200,000,000
Amortization rate (percent)			1.00%
Average interest rate (percent)					2.63%
Term loan A facility | Term Loan | LIBOR
Debt Instrument [Line Items]
Basis spread on variable rate (percent)			2.50%
Term loan A facility | Term Loan | Base Rate
Debt Instrument [Line Items]
Basis spread on variable rate (percent)			1.50%
Revolving credit agreement and term loans
Debt Instrument [Line Items]
Maximum borrowings under credit facility			$ 400,000,000
Revolving credit agreement and term loans | Revolving Facility | LIBOR
Debt Instrument [Line Items]
Basis spread on variable rate (percent)			2.25%
Revolving credit agreement and term loans | Revolving Facility | Base Rate
Debt Instrument [Line Items]
Basis spread on variable rate (percent)			1.25%
Term loan B facility | Term Loan
Debt Instrument [Line Items]
Face amount		$ 350,000,000
Debt term		7 years
Incremental loans		$ 250,000,000
Average interest rate (percent)					4.50%
Term loan B facility | Term Loan | LIBOR
Debt Instrument [Line Items]
Basis spread on variable rate (percent)			375.00%
Term loan B facility | Term Loan | Base Rate
Debt Instrument [Line Items]
Basis spread on variable rate (percent)			2.75%
Term loan B facility | Term Loan | Minimum Reserve Adjusted London Interbank Offered Rate Floor Rate
Debt Instrument [Line Items]
Basis spread on variable rate (percent)			75.00%
6.875% senior unsecured notes due October 1, 2026 | Unsecured notes
Debt Instrument [Line Items]
Face amount			$ 350,000,000
Interest rate (percent)			6.875%		6.875%	6.875%
6.875% senior unsecured notes due October 1, 2026 | Corporate Bond Securities
Debt Instrument [Line Items]
Interest rate (percent)			6.875%		6.875%
Interest rate at period end (percent)					7.248%

Debt - Schedule of Long Term De

Debt - Schedule of Long Term Debt Maturities (Details) $ in Millions	Dec. 31, 2021USD ($)
Long-term Debt, Fiscal Year Maturity [Abstract]
2022	$ 7.2
2023	399.7
2024	6.3
2025	192.5
2026	349.5
Thereafter	331.2
Total	$ 1,286.4

Debt - Debt Issuance Costs (Det

Debt - Debt Issuance Costs (Details) - USD ($) $ in Millions	Dec. 31, 2021	Dec. 31, 2020
Debt Disclosure [Abstract]
2022	$ 3.9
2023	3.5
2024	2.3
2025	2.2
2026	1.9
Thereafter	2.3
Total	$ 16.1	$ 4.6

Derivatives - Narrative (Detail

Derivatives - Narrative (Details)	12 Months Ended
	Dec. 31, 2021USD ($)	Dec. 31, 2020USD ($)	Dec. 31, 2019USD ($)	Nov. 23, 2021USD ($)	Nov. 23, 2021EUR (€)	Oct. 01, 2021USD ($)	Oct. 01, 2021EUR (€)	Sep. 30, 2021USD ($)	Sep. 11, 2019USD ($)	Jan. 29, 2019USD ($)	Jan. 29, 2019EUR (€)
Interest Rate Swap | June 30, 2021 - December 31, 2021
Derivative [Line Items]
Derivative, notional amount	$ 400,000,000
Interest Rate Swap | December 29, 2023 - December 31, 2024
Derivative [Line Items]
Derivative, notional amount	350,000,000
Interest Rate Swap | December 31, 2024 - December 31, 2025
Derivative [Line Items]
Derivative, notional amount	300,000,000
Interest Rate Swap | December 31, 2025 - December 31, 2026
Derivative [Line Items]
Derivative, notional amount	200,000,000
Interest Rate Swap | December 31, 2026 - December 31, 2027
Derivative [Line Items]
Derivative, notional amount	190,000,000
0.974% Interest rate swap
Derivative [Line Items]
Fixed rate								0.974%
Derivative, notional amount								$ 260,000,000
1.4135% Interest rate swap
Derivative [Line Items]
Fixed rate								1.4135%
Derivative, notional amount								$ 140,000,000
1.724% Interest rate swap
Derivative [Line Items]
Fixed rate									1.724%
Derivative, notional amount									$ 185,000,000
1.724% Interest rate swap | September 13, 2019 - December 31, 2020
Derivative [Line Items]
Derivative, notional amount	185,000,000
1.724% Interest rate swap | December 31, 2020 - December 31, 2021
Derivative [Line Items]
Derivative, notional amount	150,000,000
1.724% Interest rate swap | December 31, 2021 - January 31, 2027
Derivative [Line Items]
Derivative, notional amount	100,000,000
Cross-currency swap | Net Investment Hedging
Derivative [Line Items]
Derivative amounts excluded from effectiveness testing as interest expense	$ 6,300,000	$ 6,500,000	$ 1,100,000
Cross-currency swap | Dollars
Derivative [Line Items]
Fixed rate									6.875%	5.117%	5.117%
Derivative, notional amount									$ 100,000,000	$ 75,000,000
Cross-currency swap | Dollars | Derivatives designated as cash flow hedge
Derivative [Line Items]
Fixed rate						6.875%	6.875%
Derivative, notional amount						$ 75,000,000
Cross-currency swap | Euro
Derivative [Line Items]
Fixed rate									5.638%	6.875%	6.875%
Derivative, notional amount									$ 90,900,000	$ 66,000,000	€ 66,000,000
Cross-currency swap | Euro | Derivatives designated as cash flow hedge
Derivative [Line Items]
Fixed rate						5.475%	5.475%
Derivative, notional amount | €							€ 64,700,000
6.875% U.S. dollar for 4.6905% Euro interest rate swap | Dollars | Derivatives designated as cash flow hedge
Derivative [Line Items]
Fixed rate				6.875%	6.875%
Derivative, notional amount				$ 85,000,000
6.875% U.S. dollar for 4.6905% Euro interest rate swap | Euro | Derivatives designated as cash flow hedge
Derivative [Line Items]
Fixed rate				4.9605%	4.9605%
Derivative, notional amount | €					€ 75,700,000
6.875% U.S. dollar for 5.0755% Euro interest rate swap | Dollars | Derivatives designated as cash flow hedge
Derivative [Line Items]
Fixed rate				6.875%	6.875%
Derivative, notional amount				$ 85,000,000
6.875% U.S. dollar for 5.0755% Euro interest rate swap | Euro | Derivatives designated as cash flow hedge
Derivative [Line Items]
Fixed rate				5.0755%	5.0755%
Derivative, notional amount | €					€ 75,700,000
6.875% U.S. dollar for 5.1605% Euro interest rate swap | Dollars | Derivatives designated as cash flow hedge
Derivative [Line Items]
Fixed rate				6.875%	6.875%
Derivative, notional amount				$ 65,000,000
6.875% U.S. dollar for 5.1605% Euro interest rate swap | Euro | Derivatives designated as cash flow hedge
Derivative [Line Items]
Fixed rate				5.1605%	5.1605%
Derivative, notional amount | €					€ 57,900,000
6.875% U.S. dollar for 5.1405% Euro interest rate swap | Dollars | Derivatives designated as cash flow hedge
Derivative [Line Items]
Fixed rate				6.875%	6.875%
Derivative, notional amount				$ 65,000,000
6.875% U.S. dollar for 5.1405% Euro interest rate swap | Euro | Derivatives designated as cash flow hedge
Derivative [Line Items]
Fixed rate				5.1405%	5.1405%
Derivative, notional amount | €					€ 57,900,000

Derivatives - Derivatives by Ba

Derivatives - Derivatives by Balance Sheet Location (Details) - USD ($) $ in Millions	Dec. 31, 2021	Dec. 31, 2020
Derivatives, Fair Value [Line Items]
Asset Derivatives	$ 5.3	$ 1.2
Liability Derivatives	12.5	31.1
Derivatives designated as cash flow hedge
Derivatives, Fair Value [Line Items]
Asset Derivatives	5.1	1.2
Liability Derivatives	11.9	31.1
Derivatives designated as cash flow hedge | Foreign Exchange Contract | Accounts receivable
Derivatives, Fair Value [Line Items]
Asset Derivatives	1.6	0.9
Derivatives designated as cash flow hedge | Foreign Exchange Contract | Other assets
Derivatives, Fair Value [Line Items]
Asset Derivatives	0	0
Derivatives designated as cash flow hedge | Foreign Exchange Contract | Accrued expenses
Derivatives, Fair Value [Line Items]
Liability Derivatives	0	11
Derivatives designated as cash flow hedge | Foreign Exchange Contract | Other liabilities
Derivatives, Fair Value [Line Items]
Liability Derivatives	9.8	12.3
Derivatives designated as cash flow hedge | Interest rate contracts | Accounts receivable
Derivatives, Fair Value [Line Items]
Asset Derivatives	0.2	0.3
Derivatives designated as cash flow hedge | Interest rate contracts | Other assets
Derivatives, Fair Value [Line Items]
Asset Derivatives	3.3	0
Derivatives designated as cash flow hedge | Interest rate contracts | Accrued expenses
Derivatives, Fair Value [Line Items]
Liability Derivatives	0	0
Derivatives designated as cash flow hedge | Interest rate contracts | Other liabilities
Derivatives, Fair Value [Line Items]
Liability Derivatives	2.1	$ 7.8
Derivatives designated as investment hedge
Derivatives, Fair Value [Line Items]
Asset Derivatives	0.2
Liability Derivatives	0.6
Derivatives designated as investment hedge | Foreign Exchange Contract | Accounts receivable
Derivatives, Fair Value [Line Items]
Asset Derivatives	0.2
Derivatives designated as investment hedge | Foreign Exchange Contract | Accounts payable
Derivatives, Fair Value [Line Items]
Liability Derivatives	$ 0.6

Derivatives - Derivatives by In

Derivatives - Derivatives by Income Statement Location (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Derivative Instruments, Gain (Loss) [Line Items]
(Loss) Gain Reclassified from AOCI, Net of Tax	$ (5.1)	$ (2)	$ 4.5
Derivatives designated as investment hedge
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gain / (Loss) Recognized in Other Income / Expense	(2.2)	0.1	1.1
Derivatives designated as investment hedge | Other income (expense), net | Foreign exchange contracts
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gain / (Loss) Recognized in Other Income / Expense	(2.2)	0.1	1.1
Cash Flow Hedging | Derivatives designated as cash flow hedge | Net sales | Foreign exchange contracts
Derivative Instruments, Gain (Loss) [Line Items]
Unrealized Gain (Loss) Recognized in AOCI on Derivatives, Net of Tax for the Year Ended December 31,	(0.2)	(5.3)	(0.7)
(Loss) Gain Reclassified from AOCI, Net of Tax	(1.7)	(3.4)	(1.2)
Cash Flow Hedging | Derivatives designated as cash flow hedge | Other income (expense), net | Foreign exchange contracts
Derivative Instruments, Gain (Loss) [Line Items]
Unrealized Gain (Loss) Recognized in AOCI on Derivatives, Net of Tax for the Year Ended December 31,	1.2	1.4	(2.3)
(Loss) Gain Reclassified from AOCI, Net of Tax	(0.2)	1.4	(1.9)
Cash Flow Hedging | Derivatives designated as cash flow hedge | Interest expense | Interest rate contracts
Derivative Instruments, Gain (Loss) [Line Items]
Unrealized Gain (Loss) Recognized in AOCI on Derivatives, Net of Tax for the Year Ended December 31,	5.1	(7.7)	4.6
(Loss) Gain Reclassified from AOCI, Net of Tax	(3.2)	0	7.6
Cash Flow Hedging | Derivatives designated as investment hedge
Derivative Instruments, Gain (Loss) [Line Items]
Unrealized Gain (Loss) Recognized in AOCI on Derivatives, Net of Tax for the Year Ended December 31,	12.7	(25.8)	1.6
(Loss) Gain Reclassified from AOCI, Net of Tax	(5.1)	(2)	4.5
Cash Flow Hedging | Derivatives designated as investment hedge | Other income (expense), net | Foreign exchange contracts
Derivative Instruments, Gain (Loss) [Line Items]
Unrealized Gain (Loss) Recognized in AOCI on Derivatives, Net of Tax for the Year Ended December 31,	6.6	(14.2)	0
(Loss) Gain Reclassified from AOCI, Net of Tax	$ 0	$ 0	$ 0

Accrued Expenses (Details)

Accrued Expenses (Details) - USD ($) $ in Millions	Dec. 31, 2021	Dec. 31, 2020
Payables and Accruals [Abstract]
Accrued salaries, wages and employee benefits	$ 42	$ 48.7
Other accrued expenses	67.3	52.2
Total	$ 109.3	$ 100.9

Income Taxes - Components of In

Income Taxes - Components of Income Before Income Taxes (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Income Tax Disclosure [Abstract]
U.S.	$ 28.5	$ 29.1	$ 60
Foreign	44.6	68.2	36.9
Income before income taxes and income from equity affiliates	$ 73.1	$ 97.3	$ 96.9

Income Taxes - Components of _2

Income Taxes - Components of Income Tax Expense (Benefit), Continuing Operations (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Current income taxes:
U.S. federal	$ 5	$ 7.3	$ 8.1
U.S. state	0.7	1.5	0.8
Foreign	11.9	14.8	9.7
Current income taxes	17.6	23.6	18.6
Deferred income taxes:
U.S. federal	7.5	(5.3)	2.3
U.S. state	(0.2)	1	(1.9)
Foreign	(34.3)	(0.9)	(3.8)
Deferred income taxes	(27)	(5.2)	(3.4)
Provision for income taxes	$ (9.4)	$ 18.4	$ 15.2

Income Taxes - Reconciliation o

Income Taxes - Reconciliation of Income Tax Rate (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Amount
Tax provision at U.S. statutory rate	$ 15.4	$ 20.4	$ 20.3
Foreign income tax rate differential	2.9	2.7	0.6
Income from passthrough entities	4.2	2.3	1.7
Branch earnings	(0.9)	0	0
Global intangible low tax inclusion	4.7	4.8	(0.1)
Subpart F income	1	0.6	1
State income tax, net of federal benefit	0.5	1.8	(0.2)
Adjustments to valuation allowances	57	(3.9)	(3.7)
Capital loss carryforward	(86.5)	0	0
Transition tax	0	0	(0.7)
Other tax credits	(1.4)	(0.8)	(2)
Foreign tax credits	(11)	(9.9)	(3.5)
Other foreign operational taxes	3	3.5	2.9
Base erosion minimum tax amount	2.4	0	0
Non-deductible compensation	1.9	0.4	1.1
Other, net	(2.6)	(3.5)	(2.2)
Provision for income taxes	$ (9.4)	$ 18.4	$ 15.2
Percent
Tax provision at U.S. statutory rate	21.00%	21.00%	21.00%
Foreign income tax rate differential	4.00%	2.70%	0.50%
Income from passthrough entities	5.70%	2.30%	1.60%
Branch earnings	(1.20%)	0.00%	0.00%
Global intangible low tax inclusion	6.40%	4.80%	(0.10%)
Subpart F income	1.30%	0.60%	1.00%
State income tax, net of federal benefit	0.70%	1.80%	(0.20%)
Adjustments to valuation allowances	78.00%	(3.90%)	(3.80%)
Capital loss carryforward	(118.30%)	0.00%	0.00%
Transition tax	0	0	(0.006)
Other tax credits	(2.00%)	(0.80%)	(2.10%)
Foreign tax credits	(15.00%)	(10.00%)	(3.60%)
Other foreign operational taxes	4.10%	3.50%	3.00%
Base erosion minimum tax amount	3.30%	0.00%	0.00%
Non-deductible compensation	2.60%	0.40%	1.10%
Other, net	(3.50%)	(3.50%)	(2.10%)
Provision for income taxes	(12.90%)	18.90%	15.70%

Income Taxes - Narrative (Detai

Income Taxes - Narrative (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Tax Credit Carryforward [Line Items]
(Benefit) provision for income taxes	$ (9.4)	$ 18.4	$ 15.2
Effective tax rate (percent)	(12.90%)	18.90%	15.70%
Tax-effected operating loss carryforwards	$ 111.8
Capital loss carryforward	103.1	$ 12.1
Valuation allowance on deferred tax assets	232.3	166.6
Unrecognized tax benefits that would impact effective tax rate	5
Income tax penalties and interest accrued	0	$ 0	$ 0
Scapa
Tax Credit Carryforward [Line Items]
Liability for interest and penalties	1.8
U.S.
Tax Credit Carryforward [Line Items]
Valuation allowance on deferred tax assets	106.9
Luxembourg
Tax Credit Carryforward [Line Items]
Valuation allowance on deferred tax assets	103.4
Partial valuation allowance release	(35)
Brazil | State ICMS
Tax Credit Carryforward [Line Items]
Valuation allowance on deferred tax assets	4.9
State
Tax Credit Carryforward [Line Items]
Valuation allowance on deferred tax assets	1.7
Tax Year 2024 - 2026
Tax Credit Carryforward [Line Items]
Capital loss carryforward	96.7
Indefinite
Tax Credit Carryforward [Line Items]
Capital loss carryforward	6.4
Tax Year 2029 - 2030 | Foreign and state jurisdiction
Tax Credit Carryforward [Line Items]
Capital loss carryforward	8
Tax Year 2021 - 2036 | Foreign and state jurisdiction
Tax Credit Carryforward [Line Items]
Capital loss carryforward	$ 2.2

Income Taxes - Deferred Tax Ass

Income Taxes - Deferred Tax Assets (Liabilities) (Details) - USD ($) $ in Millions	Dec. 31, 2021	Dec. 31, 2020
Deferred Tax Assets
Receivable allowances	$ 0.9	$ 0.5
Postretirement and other employee benefits	17.1	21
Derivatives	0	2.5
Net operating loss and tax credit carryforwards	129.6	104.4
Capital loss carryforward	103.1	12.1
Accruals and other liabilities	0.4	0.7
Intangibles	0	37.6
Other	12.6	4.4
Deferred Tax Assets	263.7	183.2
Less: Valuation allowance	(232.3)	(166.6)
Net deferred income tax assets	31.4	16.6
Deferred Tax Liabilities
Net property, plant and equipment	(60.3)	(55.7)
Intangibles	(31.3)	0
Investment in subsidiaries	(0.6)	(3.2)
Derivatives	(0.3)	0
Other	(0.1)	(0.3)
Net deferred income tax liabilities	(92.6)	(59.2)
Total net deferred income tax liabilities	$ (61.2)	$ (42.6)

Income Taxes - Operating Loss C

Income Taxes - Operating Loss Carryforwards (Details) $ in Millions	Dec. 31, 2021USD ($)
Income Tax Disclosure [Abstract]
2022-2041	$ 26.7
Indefinite	85.1
Tax-effected operating loss carryforwards	$ 111.8

Income Taxes - Unrecognized Tax

Income Taxes - Unrecognized Taxes (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Reconciliation of Unrecognized Tax Benefits [Roll Forward]
Uncertain tax position balance at beginning of year	$ 2	$ 1.7	$ 1.1
Increases related to current year tax positions	0.3	0.3	0.6
Decreases related to expiration of statute of limitations	(0.7)	0	0
Current year acquisition	8.2	0	0
Uncertain tax position balance at end of year	$ 9.8	$ 2	$ 1.7

Postretirement and Other Bene_3

Postretirement and Other Benefits - Narrative (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Defined Benefit Plan Disclosure [Line Items]
Defined contribution cost recognized	$ 4.6	$ 4	$ 3.9
Liability under deferred compensation plans	16.2	14.5
Grantor trust assets	21.6	18
Other liabilities, French law CET account	$ 7.1	$ 7
U.S. | Unfunded Plan
Defined Benefit Plan Disclosure [Line Items]
Coverage age	65 years

Postretirement and Other Bene_4

Postretirement and Other Benefits - Funded Status (Details) - Pension Benefits - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
U.S.
Change in Projected Benefit Obligation, or PBO:
PBO at beginning of year	$ 125.1	$ 119.9
Acquisition	1.9	0
Service cost	0	0	$ 0
Interest cost	2.8	3.7	4.6
Actuarial (gain) loss	(2.6)	9.7
Participant contributions	0	0
Gross benefits paid	(8.8)	(8.2)
Currency translation effect	0	0
PBO at end of year	118.4	125.1	119.9
Change in Plan Assets:
Fair value of plan assets at beginning of year	134.4	125.8
Acquisition	0	0
Actual return on plan assets	(0.9)	16.8
Employer contributions		0
Participant contributions	0	0
Gross benefits paid	(8.8)	(8.2)
Currency translation effect	0	0
Fair value of plan assets at end of year	124.7	134.4	125.8
Funded status at end of year	6.3	9.3
France
Change in Projected Benefit Obligation, or PBO:
PBO at beginning of year	35.8	31.9
Acquisition	5.4	0
Service cost	1.6	1.3	1
Interest cost	0.1	0.2	0.4
Actuarial (gain) loss	(2.1)	0.6
Participant contributions	0.8	0.5
Gross benefits paid	(2.7)	(1.7)
Currency translation effect	(2.9)	3
PBO at end of year	36	35.8	31.9
Change in Plan Assets:
Fair value of plan assets at beginning of year	0.8	1.1
Acquisition	0	0
Actual return on plan assets	0.1	0
Employer contributions	1.8	1.2
Participant contributions	0.1	0
Gross benefits paid	(2.2)	(1.6)
Currency translation effect	(0.1)	0.1
Fair value of plan assets at end of year	0.5	0.8	1.1
Funded status at end of year	(35.5)	(35)
U.K.
Change in Projected Benefit Obligation, or PBO:
PBO at beginning of year	0	0
Acquisition	200.1	0
Service cost	0	0	0
Interest cost	2.5	0	0
Actuarial (gain) loss	4.3	0
Participant contributions	0	0
Gross benefits paid	(10.7)	0
Currency translation effect	(3.9)	0
PBO at end of year	192.3	0	0
Change in Plan Assets:
Fair value of plan assets at beginning of year	0	0
Acquisition	211.4	0
Actual return on plan assets	10.9	0
Employer contributions	2.9	0
Participant contributions	0	0
Gross benefits paid	(10.8)	0
Currency translation effect	(4.3)	0
Fair value of plan assets at end of year	210.1	0	$ 0
Funded status at end of year	$ 17.8	$ 0

Postretirement and Other Bene_5

Postretirement and Other Benefits - PBO and ABO in Excess of Fair Value of Plan Assets (Details) - Pension Benefits - USD ($) $ in Millions	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
U.S.
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
PBO	$ 118.4	$ 125.1
ABO	118.4	125.1
Fair value of plan assets	124.7	134.4	$ 125.8
France
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
PBO	36	35.8
ABO	36	35.8
Fair value of plan assets	0.5	0.8	1.1
U.K.
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
PBO	192.3	0
ABO	192.3	0
Fair value of plan assets	$ 210.1	$ 0	$ 0

Postretirement and Other Bene_6

Postretirement and Other Benefits - Amounts Recognized in Accumulated Other Comprehensive Income (Details) - Pension Benefits $ in Millions	Dec. 31, 2021USD ($)
U.S.
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Accumulated loss (gain)	$ 16.9
Prior service credit	0
Accumulated other comprehensive loss (gain)	16.9
France
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Accumulated loss (gain)	11.1
Prior service credit	(2)
Accumulated other comprehensive loss (gain)	9.1
U.K.
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Accumulated loss (gain)	(3.5)
Prior service credit	0
Accumulated other comprehensive loss (gain)	$ (3.5)

Postretirement and Other Bene_7

Postretirement and Other Benefits - Weighted Average Assumption of Projected Benefit Obligations (Details) - Pension Benefits	Dec. 31, 2021	Dec. 31, 2020
U.S.
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Discount rate	2.73%	2.30%
Rate of compensation increase	0.00%	0.00%
Rate of pension increase	0.00%	0.00%
France
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Discount rate	0.88%	0.32%
Rate of compensation increase	2.01%	1.97%
Rate of pension increase	0.00%	0.00%
U.K.
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Discount rate	1.85%	0.00%
Rate of compensation increase	0.00%	0.00%
Rate of pension increase	3.26%	0.00%

Postretirement and Other Bene_8

Postretirement and Other Benefits - Net Pension Benefit Costs (Details) - Pension Benefits - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
U.S.
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Service cost	$ 0	$ 0	$ 0
Interest cost	2.8	3.7	4.6
Expected return on plan assets	(3.9)	(4.9)	(5.8)
Amortizations and other	3.2	3.3	2
Net periodic benefit cost	2.1	2.1	0.8
France
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Service cost	1.6	1.3	1
Interest cost	0.1	0.2	0.4
Expected return on plan assets	0	(0.1)	(0.1)
Amortizations and other	0.8	1	0.9
Net periodic benefit cost	2.5	2.4	2.2
U.K.
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Service cost	0	0	0
Interest cost	2.5	0	0
Expected return on plan assets	(2.7)	0	0
Amortizations and other	0	0	0
Net periodic benefit cost	$ (0.2)	$ 0	$ 0

Postretirement and Other Bene_9

Postretirement and Other Benefits - Weighted Average Assumptions - Net Periodic Benefit Cost (Details) - Pension Benefits	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
U.S.
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Discount rate	2.31%	3.20%	4.29%
Expected long-term rate of return on plan assets	3.44%	4.41%	5.14%
Rate of compensation increase	0.00%	0.00%	0.00%
France
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Discount rate	0.88%	0.53%	1.28%
Expected long-term rate of return on plan assets	3.00%	3.00%	3.00%
Rate of compensation increase	2.01%	1.97%	1.96%
U.K.
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Discount rate	1.95%	0.00%	0.00%
Expected long-term rate of return on plan assets	3.17%	0.00%	0.00%
Rate of compensation increase	0.00%	0.00%	0.00%

Postretirement and Other Ben_10

Postretirement and Other Benefits - Target Allocations (Details) - Pension Benefits	Dec. 31, 2021	Dec. 31, 2020
U.S.
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Actual allocations	100.00%	100.00%
U.S. | Cash and cash equivalents
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Actual allocations	1.00%	1.00%
U.S. | Domestic large cap
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Actual allocations	2.00%	2.00%
U.S. | Domestic small cap
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Actual allocations	1.00%	1.00%
U.S. | International
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Actual allocations	6.00%	6.00%
U.S. | Fixed income securities
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Actual allocations	90.00%	90.00%
U.S. | Alternative investments
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Actual allocations	0.00%	0.00%
France
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Actual allocations	100.00%	100.00%
France | Cash and cash equivalents
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Actual allocations	11.00%	36.00%
France | Domestic large cap
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Actual allocations	16.00%	30.00%
France | Domestic small cap
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Actual allocations	0.00%	0.00%
France | International
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Actual allocations	0.00%	0.00%
France | Fixed income securities
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Actual allocations	67.00%	32.00%
France | Alternative investments
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Actual allocations	6.00%	2.00%
U.K.
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Actual allocations	100.00%	0.00%
U.K. | Cash and cash equivalents
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Actual allocations	1.00%	0.00%
U.K. | Domestic large cap
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Actual allocations	0.00%	0.00%
U.K. | Domestic small cap
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Actual allocations	0.00%	0.00%
U.K. | International
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Actual allocations	10.00%	0.00%
U.K. | Fixed income securities
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Actual allocations	87.00%	0.00%
U.K. | Alternative investments
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Actual allocations	2.00%	0.00%

Postretirement and Other Ben_11

Postretirement and Other Benefits - Fair Value of Plan Assets (Details) - Pension Benefits - USD ($) $ in Millions	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
U.S.
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair value of plan assets	$ 124.7	$ 134.4	$ 125.8
U.S. | Cash and cash equivalents
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair value of plan assets	1.1	1
U.S. | Domestic large cap
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair value of plan assets	3.7	2.7
U.S. | Domestic small cap
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair value of plan assets	1.2	1.3
U.S. | International
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair value of plan assets	7.4	8.2
U.S. | US Government securities
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair value of plan assets	43.1	13.9
U.S. | Corporate bonds
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair value of plan assets	48.4	99.6
U.S. | International bonds
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair value of plan assets	2.1	1.2
U.S. | Alternative investments
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair value of plan assets	0
U.S. | Other
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair value of plan assets	17.7	6.5
U.S. | Other
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair value of plan assets	123.6	133.4
U.S. | Other | Cash and cash equivalents
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair value of plan assets	0	0
U.S. | Other | Domestic large cap
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair value of plan assets	3.7	2.7
U.S. | Other | Domestic small cap
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair value of plan assets	1.2	1.3
U.S. | Other | International
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair value of plan assets	7.4	8.2
U.S. | Other | US Government securities
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair value of plan assets	43.1	13.9
U.S. | Other | Corporate bonds
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair value of plan assets	48.4	99.6
U.S. | Other | International bonds
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair value of plan assets	2.1	1.2
U.S. | Other | Alternative investments
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair value of plan assets	0
U.S. | Other | Other
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair value of plan assets	17.7	6.5
U.S. | Level 1
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair value of plan assets	1.1	1
U.S. | Level 1 | Cash and cash equivalents
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair value of plan assets	1.1	1
U.S. | Level 1 | Domestic large cap
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair value of plan assets	0	0
U.S. | Level 1 | Domestic small cap
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair value of plan assets	0	0
U.S. | Level 1 | International
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair value of plan assets	0	0
U.S. | Level 1 | US Government securities
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair value of plan assets	0	0
U.S. | Level 1 | Corporate bonds
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair value of plan assets	0	0
U.S. | Level 1 | International bonds
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair value of plan assets	0	0
U.S. | Level 1 | Alternative investments
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair value of plan assets	0
U.S. | Level 1 | Other
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair value of plan assets	0	0
U.S. | Level 2
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair value of plan assets	0	0
U.S. | Level 2 | Cash and cash equivalents
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair value of plan assets	0	0
U.S. | Level 2 | Domestic large cap
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair value of plan assets	0	0
U.S. | Level 2 | Domestic small cap
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair value of plan assets	0	0
U.S. | Level 2 | International
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair value of plan assets	0	0
U.S. | Level 2 | US Government securities
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair value of plan assets	0	0
U.S. | Level 2 | Corporate bonds
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair value of plan assets	0	0
U.S. | Level 2 | International bonds
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair value of plan assets	0	0
U.S. | Level 2 | Alternative investments
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair value of plan assets	0
U.S. | Level 2 | Other
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair value of plan assets	0	0
U.S. | Level 3
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair value of plan assets	0	0
U.S. | Level 3 | Cash and cash equivalents
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair value of plan assets	0	0
U.S. | Level 3 | Domestic large cap
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair value of plan assets	0	0
U.S. | Level 3 | Domestic small cap
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair value of plan assets	0	0
U.S. | Level 3 | International
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair value of plan assets	0	0
U.S. | Level 3 | US Government securities
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair value of plan assets	0	0
U.S. | Level 3 | Corporate bonds
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair value of plan assets	0	0
U.S. | Level 3 | International bonds
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair value of plan assets	0	0
U.S. | Level 3 | Alternative investments
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair value of plan assets	0
U.S. | Level 3 | Other
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair value of plan assets	0	0
France
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair value of plan assets	0.5	0.8	1.1
France | Cash and cash equivalents
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair value of plan assets	0.1	0.3
France | Domestic large cap
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair value of plan assets	0.1	0.2
France | Domestic small cap
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair value of plan assets	0	0
France | International
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair value of plan assets	0	0
France | US Government securities
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair value of plan assets	0	0
France | Corporate bonds
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair value of plan assets	0	0
France | International bonds
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair value of plan assets	0	0
France | Alternative investments
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair value of plan assets	0
France | Other
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair value of plan assets	0.3	0.3
France | Level 1
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair value of plan assets	0.2	0.5
France | Level 1 | Cash and cash equivalents
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair value of plan assets	0.1	0.3
France | Level 1 | Domestic large cap
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair value of plan assets	0.1	0.2
France | Level 1 | Domestic small cap
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair value of plan assets	0	0
France | Level 1 | International
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair value of plan assets	0	0
France | Level 1 | US Government securities
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair value of plan assets	0	0
France | Level 1 | Corporate bonds
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair value of plan assets	0	0
France | Level 1 | International bonds
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair value of plan assets	0	0
France | Level 1 | Alternative investments
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair value of plan assets	0
France | Level 1 | Other
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair value of plan assets	0	0
France | Level 2
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair value of plan assets	0.3	0.3
France | Level 2 | Cash and cash equivalents
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair value of plan assets	0	0
France | Level 2 | Domestic large cap
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair value of plan assets	0	0
France | Level 2 | Domestic small cap
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair value of plan assets	0	0
France | Level 2 | International
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair value of plan assets	0	0
France | Level 2 | US Government securities
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair value of plan assets	0	0
France | Level 2 | Corporate bonds
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair value of plan assets	0	0
France | Level 2 | International bonds
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair value of plan assets	0	0
France | Level 2 | Alternative investments
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair value of plan assets	0
France | Level 2 | Other
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair value of plan assets	0.3	0.3
U.K.
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair value of plan assets	210.1	$ 0	$ 0
U.K. | Cash and cash equivalents
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair value of plan assets	2.5
U.K. | Domestic large cap
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair value of plan assets	0
U.K. | Domestic small cap
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair value of plan assets	0
U.K. | International
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair value of plan assets	20.8
U.K. | US Government securities
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair value of plan assets	0
U.K. | Corporate bonds
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair value of plan assets	95.2
U.K. | International bonds
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair value of plan assets	86.6
U.K. | Alternative investments
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair value of plan assets	1.7
U.K. | Other
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair value of plan assets	3.3
U.K. | Level 1
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair value of plan assets	2.5
U.K. | Level 1 | Cash and cash equivalents
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair value of plan assets	2.5
U.K. | Level 1 | Domestic large cap
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair value of plan assets	0
U.K. | Level 1 | Domestic small cap
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair value of plan assets	0
U.K. | Level 1 | International
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair value of plan assets	0
U.K. | Level 1 | US Government securities
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair value of plan assets	0
U.K. | Level 1 | Corporate bonds
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair value of plan assets	0
U.K. | Level 1 | International bonds
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair value of plan assets	0
U.K. | Level 1 | Alternative investments
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair value of plan assets	0
U.K. | Level 1 | Other
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair value of plan assets	0
U.K. | Level 2
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair value of plan assets	207.6
U.K. | Level 2 | Cash and cash equivalents
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair value of plan assets	0
U.K. | Level 2 | Domestic large cap
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair value of plan assets	0
U.K. | Level 2 | Domestic small cap
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair value of plan assets	0
U.K. | Level 2 | International
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair value of plan assets	20.8
U.K. | Level 2 | US Government securities
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair value of plan assets	0
U.K. | Level 2 | Corporate bonds
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair value of plan assets	95.2
U.K. | Level 2 | International bonds
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair value of plan assets	86.6
U.K. | Level 2 | Alternative investments
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair value of plan assets	1.7
U.K. | Level 2 | Other
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair value of plan assets	$ 3.3

Postretirement and Other Ben_12

Postretirement and Other Benefits - Expected Future Benefit Payments (Details) - Pension Benefits $ in Millions	Dec. 31, 2021USD ($)
U.S.
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
2022	$ 8.7
2023	8.4
2024	8.3
2025	8.2
2026	8
2027 - 2031	36.6
France
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
2022	0.4
2023	1.3
2024	1
2025	1.7
2026	1.3
2027 - 2031	14.1
U.K.
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
2022	10.9
2023	11.2
2024	11.4
2025	11.8
2026	12.1
2027 - 2031	$ 65.3

Stockholders' Equity - Restrict

Stockholders' Equity - Restricted Stock Plan (Details) - USD ($) $ / shares in Units, $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted stock award, issued during period (in shares)	1,188,070
Restricted Stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares authorized (in shares)	5,000,000
Limitation on single participant (in shares) (no more than)	750,000
Restricted stock award, not yet vested (in shares)	377,729	405,299	221,622
Unrecognized compensation expense	$ 2.3
Unrecognized compensation expense, recognition weighted average period	1 year 1 month 6 days
Number of Shares
Nonvested restricted shares outstanding at beginning of year (in shares)	405,299	221,622	184,190
Granted (in shares)	207,135	339,454	155,982
Forfeited (in shares)	(4,345)	(36,749)	(8,869)
Vested (in shares)	(230,360)	(119,028)	(109,681)
Nonvested restricted shares outstanding at end of year (in shares)	377,729	405,299	221,622
Weighted Average Fair Value at Date of Grant
Nonvested restricted shares outstanding at beginning of year (in dollars per share)	$ 34.96	$ 37.08	$ 40.33
Granted (in dollars per share)	39.10	34.27	35.62
Forfeited (in dollars per share)	33.37	33.98	41.34
Vested (in dollars per share)	35.71	37.15	40.12
Nonvested restricted shares outstanding at end of year (in dollars per share)	$ 36.78	$ 34.96	$ 37.08
Nonvested restricted shares granted (in shares)	207,135	339,454	155,982
Restricted Stock Plan | Award Opportunity 2021-2022
Number of Shares
Granted (in shares)	179,873
Weighted Average Fair Value at Date of Grant
Compensation expense	$ 3.5
Nonvested restricted shares granted (in shares)	179,873
Restricted Stock Plan | Award Opportunity 2020-2021
Number of Shares
Granted (in shares)		266,221
Weighted Average Fair Value at Date of Grant
Compensation expense	$ 2.1	$ 3.9
Nonvested restricted shares granted (in shares)		266,221
Restricted Stock Plan | Award Opportunity 2019-2020
Number of Shares
Granted (in shares)			331,150
Weighted Average Fair Value at Date of Grant
Compensation expense	$ 1.3	$ 4.2	$ 5.6
Nonvested restricted shares granted (in shares)			331,150
Restricted Stock Plan | Award Opportunity 2018-2019
Weighted Average Fair Value at Date of Grant
Compensation expense			$ 2.2

Stockholders' Equity - Basic an

Stockholders' Equity - Basic and Diluted Shares Reconciliation (Details) - USD ($) $ in Millions	3 Months Ended								12 Months Ended
	Dec. 31, 2021	Sep. 30, 2021	Jun. 30, 2021	Mar. 31, 2021	Dec. 31, 2020	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Numerator (basic and diluted):
Net income	$ 53.3	$ 12.2	$ 1.8	$ 21.6	$ 15.3	$ 24.5	$ 21.5	$ 22.5	$ 88.9	$ 83.8	$ 85.8
Less: Dividends paid to participating securities									(0.6)	(0.7)	(0.4)
Less: Undistributed earnings available to participating securities									(0.5)	(0.4)	(0.2)
Undistributed and distributed earnings available to common stockholders									$ 87.8	$ 82.7	$ 85.2
Denominator:
Average number of common shares outstanding (shares)									31,030,400	30,832,700	30,652,200
Effect of dilutive stock-based compensation (shares)									369,900	271,500	186,100
Average number of common and potential common shares outstanding (shares)									31,400,300	31,104,200	30,838,300

Commitments and Contingencies (

Commitments and Contingencies (Details)	Apr. 09, 2021USD ($)	Mar. 31, 2021USD ($)	Dec. 31, 2021USD ($)	Dec. 31, 2017assessment	Dec. 31, 2014USD ($)	Dec. 31, 2013USD ($)	Dec. 31, 2000segment
Loss Contingencies [Line Items]
Contractual obligations to purchase products and services			$ 103,200,000
Raw Materials Assessment | S W M B Brazilian Mill
Loss Contingencies [Line Items]
Loss accrued		$ 8,600,000
Loss accrued payments	$ 2,600,000
Reduction of tax liability	70.00%
Recognized total benefit on settlement		6,100,000
Raw Materials Assessment | S W M B Brazilian Mill | Interest expense
Loss Contingencies [Line Items]
Recognized total benefit on settlement		4,600,000
Raw Materials Assessment | S W M B Brazilian Mill | Other expense
Loss Contingencies [Line Items]
Recognized total benefit on settlement		$ 1,600,000
Unfavorable Regulatory Action | Electricity Assessment
Loss Contingencies [Line Items]
Number of assessments from the tax authorities regarding ICMS taxes | assessment				4
Loss accrued			$ 0
Unfavorable Regulatory Action | First and second Electricity Assessments
Loss Contingencies [Line Items]
Estimate of possible loss					$ 9,900,000
Unfavorable Regulatory Action | Revised third and fourth Electricity Assessments
Loss Contingencies [Line Items]
Estimate of possible loss						$ 7,900,000
Unfavorable Regulatory Action | Raw Materials Assessment
Loss Contingencies [Line Items]
Number of assessments from the tax authorities regarding ICMS taxes | segment							2

Segment Information (Details)

Segment Information (Details) $ in Millions	3 Months Ended								12 Months Ended
	Dec. 31, 2021USD ($)	Sep. 30, 2021USD ($)	Jun. 30, 2021USD ($)	Mar. 31, 2021USD ($)	Dec. 31, 2020USD ($)	Sep. 30, 2020USD ($)	Jun. 30, 2020USD ($)	Mar. 31, 2020USD ($)	Dec. 31, 2021USD ($)segment	Dec. 31, 2020USD ($)	Dec. 31, 2019USD ($)
Segment Reporting Information [Line Items]
Number of operating segments | segment									2
Number of reportable segments | segment									2
Net Sales
Net sales	$ 390.4	$ 383.6	$ 377.8	$ 288.2	$ 279.4	$ 279.3	$ 254.2	$ 261.5	$ 1,440	$ 1,074.4	$ 1,022.8
Percentage of Net Sales									100.00%	100.00%	100.00%
Operating Profit
Operating profit	10.9	$ 23	$ 15.9	$ 33.5	23.3	$ 37	$ 34.4	$ 34.1	$ 83.3	$ 128.8	$ 134
Percentage of Operating Profit									99.90%	100.00%	100.00%
Capital Spending									$ 35.9	$ 30.1	$ 28.6
Depreciation									47.8	42.2	35.8
Long-Lived Assets	477.8				351.9				477.8	351.9	342.2
U.S.
Net Sales
Net sales									718.3	538.6	514.1
Operating Profit
Long-Lived Assets	173.9				122.1				173.9	122.1	118.5
France
Operating Profit
Long-Lived Assets	169.1				169.3				169.1	169.3	158.8
U.K.
Operating Profit
Long-Lived Assets	65.4				10.3				65.4	10.3	9.9
Brazil
Operating Profit
Long-Lived Assets	15.3				15.2				15.3	15.2	19.5
Poland
Operating Profit
Long-Lived Assets	10.4				12.9				10.4	12.9	14.7
Other foreign countries
Net Sales
Net sales									49.4	47.9	64.5
Operating Profit
Long-Lived Assets	$ 43.7				$ 22.1				43.7	22.1	20.8
Advanced Materials & Structures
Net Sales
Net sales									930.7	543.5	477.2
Advanced Materials & Structures | U.S.
Net Sales
Net sales									562.5	376.7	331.3
Advanced Materials & Structures | Other foreign countries
Net Sales
Net sales									18.1	15.4	14.9
Engineered Papers
Net Sales
Net sales									509.3	530.9	545.6
Engineered Papers | U.S.
Net Sales
Net sales									155.8	161.9	182.8
Engineered Papers | Other foreign countries
Net Sales
Net sales									31.3	32.5	49.6
Operating Segments | Advanced Materials & Structures
Net Sales
Net sales									$ 930.7	$ 543.5	$ 477.2
Percentage of Net Sales									64.60%	50.60%	46.70%
Operating Profit
Operating profit									$ 61.6	$ 64.8	$ 64.3
Percentage of Operating Profit									73.90%	50.30%	48.00%
Capital Spending									$ 19.5	$ 14.5	$ 16.1
Depreciation									25.9	14.5	12.8
Operating Segments | Engineered Papers
Net Sales
Net sales									$ 509.3	$ 530.9	$ 545.6
Percentage of Net Sales									35.40%	49.40%	53.30%
Operating Profit
Operating profit									$ 100.5	$ 116.8	$ 119.2
Percentage of Operating Profit									120.60%	90.70%	89.00%
Capital Spending									$ 16.4	$ 15.5	$ 12
Depreciation									21.7	27.5	22.8
Unallocated
Operating Profit
Operating profit									$ (78.8)	$ (52.8)	$ (49.5)
Percentage of Operating Profit									(94.60%)	(41.00%)	(37.00%)
Capital Spending									$ 0	$ 0.1	$ 0.5
Depreciation									$ 0.2	$ 0.2	$ 0.2

Supplemental Disclosures (Detai

Supplemental Disclosures (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Allowance for Doubtful Accounts
Beginning balance	$ 1.1	$ 1.5	$ 1.7
Bad debt expense	0.3	1	0.4
Recoveries	(0.1)	0	(0.3)
Write-offs and discounts	0.1	(1.4)	(0.3)
Ending balance	1.4	1.1	1.5
Interest paid	47.4	31.4	29.1
Income taxes paid	22.4	14.8	20.8
Capital spending in accounts payable and accrued liabilities	$ 6.3	$ 5.2	$ 5.9

Quarterly Financial Informati_3

Quarterly Financial Information (Unaudited) (Details) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended								12 Months Ended
	Dec. 31, 2021	Sep. 30, 2021	Jun. 30, 2021	Mar. 31, 2021	Dec. 31, 2020	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Quarterly Financial Information Disclosure [Abstract]
Net sales	$ 390.4	$ 383.6	$ 377.8	$ 288.2	$ 279.4	$ 279.3	$ 254.2	$ 261.5	$ 1,440	$ 1,074.4	$ 1,022.8
Gross profit	76.2	85.2	88.1	80.8	79.5	80.2	74.3	74.3	330.3	308.3	290
Restructuring and impairment expense	4.2	1.9	2.3	1.7	4.2	6	1.6	0.1	10.1	11.9	3.7
Operating profit	10.9	23	15.9	33.5	23.3	37	34.4	34.1	83.3	128.8	134
Net income	$ 53.3	$ 12.2	$ 1.8	$ 21.6	$ 15.3	$ 24.5	$ 21.5	$ 22.5	$ 88.9	$ 83.8	$ 85.8
Net income per share:
Net income per share - basic (in dollars per share)	$ 1.70	$ 0.38	$ 0.06	$ 0.69	$ 0.49	$ 0.78	$ 0.69	$ 0.72	$ 2.83	$ 2.68	$ 2.78
Net income per share - diluted (in dollars per share)	$ 1.68	$ 0.38	$ 0.06	$ 0.68	$ 0.48	$ 0.78	$ 0.68	$ 0.72	$ 2.80	$ 2.66	$ 2.76

Subsequent Event (Details)

Subsequent Event (Details) - Credit Agreement	Jun. 30, 2023	Feb. 22, 2022	Sep. 25, 2018
Subsequent Event [Line Items]
EBITDA ratio			5.50
Interest coverage ratio			3
Forecast
Subsequent Event [Line Items]
EBITDA ratio	4.50
EBITDA Ratio decrease over period	24 months
Subsequent Event
Subsequent Event [Line Items]
EBITDA ratio		6
Interest coverage ratio		3
Subsequent Event | Forecast
Subsequent Event [Line Items]
EBITDA ratio		4.50
EBITDA Ratio decrease over period		15 months