Ferro (FOE) 10-K 1 Mar 22 2021 FY Annual report Financial data

Cover

Cover - USD ($)	12 Months Ended
	Dec. 31, 2021	Jan. 31, 2022	Jun. 30, 2021
Cover [Abstract]
Document Type	10-K
Document Annual Report	true
Document Period End Date	Dec. 31, 2021
Document Transition Report	false
Entity File Number	1-584
Entity Registrant Name	FERRO CORPORATION
Entity Incorporation, State or Country Code	OH
Entity Tax Identification Number	34-0217820
Entity Address, Address Line One	6060 Parkland Boulevard
Entity Address, Address Line Two	Suite 250
Entity Address, City or Town	Mayfield Heights
Entity Address, State or Province	OH
Entity Address, Postal Zip Code	44124
City Area Code	216
Local Phone Number	875-5600
Title of 12(b) Security	Common Stock, par value $1.00
Trading Symbol	FOE
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			$ 1,749,665,504
Entity Common Stock, Shares Outstanding		83,629,399
Documents Incorporated by Reference	Portions of the Proxy Statement for Ferro Corporation’s 2021 Annual Meeting of Shareholders are incorporated into Part III of this Annual Report on Form 10-K.
Document Fiscal Period Focus	FY
Current Fiscal Year End Date	--12-31
Document Fiscal Year Focus	2021
Amendment Flag	false
Entity Central Index Key	0000035214

Item 14 - Principal Accountant

Item 14 - Principal Accountant Fees and Services	12 Months Ended
	Dec. 31, 2021
Auditor Information [Abstract]
Auditor name	Deloitte & Touche LLP
Auditor location	Cleveland, Ohio
Auditor firm ID	34

CONSOLIDATED STATEMENTS OF OPER

CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Income Statement [Abstract]
Net sales	$ 1,126,264	$ 958,954	$ 1,014,457
Cost of sales	781,645	665,198	706,481
Gross profit	344,619	293,756	307,976
Selling, general and administrative expenses	217,809	202,413	212,365
Restructuring and impairment charges	14,410	17,425	10,955
Other expense (income):
Interest expense	28,166	21,880	24,302
Interest earned	(838)	(1,995)	(3,325)
Foreign currency losses, net	5,480	3,627	9,166
Loss on extinguishment of debt	2,302	0	0
Miscellaneous expense (income), net	(35,267)	5,505	11,722
Income before income taxes	112,557	44,901	42,791
Income tax expense	39,215	14,861	7,965
Income from continuing operations	73,342	30,040	34,826
Income (loss) from discontinued operations, net of income taxes	77,199	14,003	(27,411)
Net income	150,541	44,043	7,415
Less: Net income attributable to noncontrolling interests	1,710	1,244	1,377
Net income attributable to Ferro Corporation common shareholders	148,831	42,799	6,038
Amounts attributable to Ferro Corporation:
Net income attributable to Ferro Corporation from continuing operations, net of income tax	71,696	28,967	33,739
Net income (loss) attributable to Ferro Corporation from discontinued operations, net of income tax	77,135	13,832	(27,701)
Income attributable to Ferro Corporation	$ 148,831	$ 42,799	$ 6,038
Weighted-average common shares outstanding (in shares)	82,711	82,232	82,083
Incremental common shares attributable to performance shares, deferred stock units, restricted stock units, and stock options (in shares)	886	792	808
Weighted-average diluted shares outstanding, total (in shares)	83,597	83,024	82,891
Basic earnings (loss):
Continuing operations (in USD per share)	$ 0.86	$ 0.35	$ 0.41
Discontinued operations (in USD per share)	0.93	0.17	(0.34)
Basic earnings (in USD per share)	1.79	0.52	0.07
Diluted earnings (loss):
Continuing operations (in USD per share)	0.86	0.35	0.41
Discontinued operations (in USD per share)	0.92	0.17	(0.34)
Diluted earnings (in USD per share)	$ 1.78	$ 0.52	$ 0.07

CONSOLIDATED STATEMENTS OF COMP

CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Statement of Comprehensive Income [Abstract]
Net income	$ 150,541	$ 44,043	$ 7,415
Other comprehensive income (loss), net of income tax:
Foreign currency translation income (loss)	(68,459)	26,991	5,500
Cash flow hedging instruments unrealized gain (loss)	16,116	(9,420)	(9,710)
Postretirement benefit liabilities gain (loss)	210	1,993	80
Other comprehensive income (loss), net of income tax	(52,133)	19,564	(4,130)
Total comprehensive income	98,408	63,607	3,285
Less: Comprehensive income attributable to noncontrolling interests	1,639	1,142	1,262
Comprehensive income attributable to Ferro Corporation	$ 96,769	$ 62,465	$ 2,023

CONSOLIDATED BALANCE SHEETS

CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Current assets
Cash and cash equivalents	$ 71,493	$ 174,077
Accounts receivable, net	130,954	137,008
Inventories	262,669	260,332
Other receivables	61,188	72,272
Other current assets	13,478	18,261
Current assets held-for-sale	0	307,854
Total current assets	539,782	969,804
Other assets
Property, plant and equipment, net	321,756	330,045
Goodwill	171,844	175,351
Intangible assets, net	106,677	119,500
Deferred income taxes	98,199	115,962
Operating leased assets	13,186	15,446
Other non-current assets	38,580	80,618
Non-current assets held-for-sale	0	154,207
Total assets	1,290,024	1,960,933
Current liabilities
Loans payable and current portion of long-term debt	8,964	8,839
Accounts payable	136,599	135,296
Accrued payrolls	31,416	27,166
Accrued expenses and other current liabilities	127,170	124,770
Current liabilities held-for-sale	0	107,545
Total current liabilities	304,149	403,616
Other liabilities
Long-term debt, less current portion	251,310	791,509
Postretirement and pension liabilities	133,116	181,610
Operating leased non-current liabilities	8,849	10,064
Other non-current liabilities	44,497	62,050
Non-current liabilities held-for-sale	0	71,149
Total liabilities	741,921	1,519,998
Ferro Corporation shareholders’ equity:
Common stock, par value $1 per share; 300.0 million shares authorized; 93.4 million shares issued; 83.6 million and 82.4 million shares outstanding at December 31, 2021 and December 31, 2020, respectively	93,436	93,436
Paid-in capital	279,317	293,682
Retained earnings	453,646	304,815
Accumulated other comprehensive loss	(141,772)	(89,710)
Common shares in treasury, at cost	(146,243)	(172,256)
Total Ferro Corporation shareholders’ equity	538,384	429,967
Noncontrolling interests	9,719	10,968
Total equity	548,103	440,935
Total liabilities and equity	$ 1,290,024	$ 1,960,933

CONSOLIDATED BALANCE SHEETS (Pa

CONSOLIDATED BALANCE SHEETS (Parenthetical) - $ / shares shares in Millions	Dec. 31, 2021	Dec. 31, 2020
Statement of Financial Position [Abstract]
Common stock, par value (in USD per share)	$ 1	$ 1
Common stock, shares authorized	300	300
Common stock, shares issued	93.4	93.4
Common stock, shares outstanding	83.6	82.4

CONSOLIDATED STATEMENTS OF EQUI

CONSOLIDATED STATEMENTS OF EQUITY - USD ($) $ in Thousands	Total	Common Shares in Treasury	Common Stock	Paid-in Capital	Retained Earnings	Accumulated Other Comprehensive Income (Loss)	Non- controlling Interests
Beginning balances (in shares) at Dec. 31, 2018		10,433,000
Beginning balances at Dec. 31, 2018	$ 385,849	$ (165,545)	$ 93,436	$ 298,123	$ 255,978	$ (105,361)	$ 9,218
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	7,415				6,038		1,377
Other comprehensive income (loss)	$ (4,130)					(4,015)	(115)
Purchase of treasury stock (in shares)	1,440,678	1,441,000
Purchase of treasury stock	$ (25,000)	$ (25,000)
Stock-based compensation transactions (in shares)		(443,000)
Stock-based compensation transactions	6,722	$ 10,302		(3,580)
Distributions to noncontrolling interests	(654)						(654)
Ending balances (in shares) at Dec. 31, 2019		11,431,000
Ending balances at Dec. 31, 2019	370,202	$ (180,243)	93,436	294,543	262,016	(109,376)	9,826
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	44,043				42,799		1,244
Other comprehensive income (loss)	$ 19,564					19,666	(102)
Purchase of treasury stock (in shares)	0
Stock-based compensation transactions (in shares)		(366,000)
Stock-based compensation transactions	$ 7,126	$ 7,987		(861)
Ending balances (in shares) at Dec. 31, 2020		11,065,000
Ending balances at Dec. 31, 2020	440,935	$ (172,256)	93,436	293,682	304,815	(89,710)	10,968
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	150,541				148,831		1,710
Other comprehensive income (loss)	$ (52,133)					(52,062)	(71)
Purchase of treasury stock (in shares)	0
Stock-based compensation transactions (in shares)		(1,253,000)
Stock-based compensation transactions	$ 14,178	$ 26,013		(11,835)
Change in ownership interest	(5,418)			(2,530)			(2,888)
Ending balances (in shares) at Dec. 31, 2021		9,812,000
Ending balances at Dec. 31, 2021	$ 548,103	$ (146,243)	$ 93,436	$ 279,317	$ 453,646	$ (141,772)	$ 9,719

CONSOLIDATED STATEMENTS OF CASH

CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Cash flows from operating activities
Net income	$ 150,541	$ 44,043	$ 7,415
Adjustments to reconcile net income to net cash provided by (used in) operating activities:
(Gain) loss on sale of assets and businesses	(93,974)	246	(916)
Depreciation and amortization	40,214	40,289	55,879
Interest amortization	2,090	3,974	3,755
Restructuring and impairment charges	3,027	9,787	44,702
Loss on extinguishment of debt	2,302	0	0
Provision for allowance for doubtful accounts	1,050	530	1,086
Retirement benefits	(46,692)	4,646	9,063
Deferred income taxes	13,796	(11,640)	(11,826)
Stock-based compensation	5,066	7,998	7,406
Changes in current assets and liabilities, net of effects of acquisitions:
Accounts receivable	(127,473)	(141,330)	(74,444)
Inventories	(18,076)	36,485	(10,578)
Accounts payable	10,859	(26,671)	(10,075)
Other current asset, liabilities and adjustments, net	(4,033)	18,451	(3,757)
Net cash provided by (used in) operating activities	(61,303)	(13,192)	17,710
Cash flows from investing activities
Capital expenditures for property, plant and equipment and other long-lived assets	(29,959)	(31,783)	(64,970)
Collections of financing receivables	118,095	129,969	84,567
Proceeds from sale of businesses, net	402,087	0	0
Business acquisitions, net of cash acquired	0	0	(251)
Other investing activities	436	807	1,957
Net cash provided by investing activities	490,659	98,993	21,303
Cash flows from financing activities
Net (payments) borrowings under loans payable	94	(709)	45
Principal payments on term loan facility - Amended Credit Facility	(543,200)	(8,200)	(8,200)
Proceeds from revolving credit facility - Amended Credit Facility	50,000	399,110	227,101
Principal payments on revolving credit facility - Amended Credit Facility	(50,000)	(399,110)	(227,101)
Acquisition related contingent consideration payment	0	0	(5,200)
Proceeds from exercise of stock options	11,575	756	1,052
Purchase of treasury stock	0	0	(25,000)
Other financing activities	(6,521)	(1,895)	(1,892)
Net cash used in financing activities	(538,052)	(10,048)	(39,195)
Effect of exchange rate changes on cash and cash equivalents	(2,088)	2,122	283
(Decrease) increase in cash and cash equivalents	(110,784)	77,875	101
Cash and cash equivalents at beginning of period	182,277	104,402	104,301
Cash and cash equivalents at end of period	71,493	182,277	104,402
Less: Cash and cash equivalents of discontinued operations at end of period	0	8,200	8,200
Cash and cash equivalents of continuing operations at end of period	71,493	174,077	96,202
Cash paid during the period for:
Interest	29,256	31,285	33,429
Income taxes	$ 24,082	$ 19,648	$ 21,682

Our Business

Our Business	12 Months Ended
	Dec. 31, 2021
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Our Business	Our Business Ferro Corporation (“Ferro,” “we,” “us” or “the Company”) is a leading producer of specialty materials that are sold to a broad range of manufacturers who, in turn, make products for many end-use markets. Ferro’s products fall into two general categories: functional coatings, which perform specific functions in the manufacturing processes and end products of our customers; and color solutions, which provide aesthetic and performance characteristics to our customers’ products. We differentiate ourselves in our industry by innovation and new products and services and the consistent high quality of our products, combined with delivery of localized technical service and customized application technology support. Our value-added technical services assist customers in their material specification and evaluation, product design, and manufacturing process characterization in order to help them optimize the application of our products. We manage our businesses through four business units that are differentiated from one another by product type. The four business units are listed below: • Tile Coating Systems (1) • Porcelain Enamel (2) • Functional Coatings • Color Solutions (1) Tile Coating Systems was historically a part of the Performance Coatings reportable segment. As of December 31, 2019, the results of the Tile Coatings business portion of Tile Coating Systems are reported as discontinued operations, for financial reporting purposes. (2) Porcelain Enamel, previously a part of the Performance Coatings reportable segment, is integrated into the Functional Coatings reportable segment, for financial reporting purposes. We produce our products primarily in the Europe, Middle East and Africa (“EMEA”) region, the Americas region and the Asia Pacific region. We sell our products directly to customers and through the use of agents or distributors throughout the world. Our products are sold principally in the EMEA region, the Americas region and the Asia Pacific region. Our customers manufacture products to serve a variety of end markets, including appliances, automobiles, building and renovation, electronics, household furnishings, industrial products, packaging, and sanitation. During the fourth quarter of 2019, substantially all of the assets and liabilities of our Tile Coatings business were classified as held-for-sale in the accompanying consolidated balance sheets. As further discussed in Note 4, we entered into a definitive agreement to sell our Tile Coatings business which has historically been included in the Performance Coatings reportable segment. Therefore, the associated operating results, net of income tax, have been classified as discontinued operations in the accompanying consolidated statements of operations for all periods presented. Certain reclassifications have been made to the prior year financial statements to conform to current year classifications. The reclassification relates to the balance sheet presentation of assets and liabilities as held for sale and statement of operations presentation of results classified as discontinued operations in relation to the Tile Coatings business transaction. As of January 1, 2021, the United States and Latin America regions were combined into the Americas region. On February 25, 2021, we completed the sale of our Tile Coatings business to Pigments Spain, S.L., a company of the Esmalglass-Itaca-Fritta group, which is a portfolio company of certain Lone Star Funds. Pending Merger On May 11, 2021, Ferro, PMHC II Inc., a Delaware corporation (“Prince”) and PMHC Fortune Merger Sub, Inc., a Delaware corporation and a wholly owned subsidiary of Prince (“Merger Sub”), entered into an Agreement and Plan of Merger (the “Merger Agreement”), pursuant to which, on the terms and subject to the conditions set forth in the Merger Agreement, Merger Sub will merge with and into Ferro (the “Merger”), with Ferro continuing as the surviving corporation in the Merger and as a direct or indirect wholly owned subsidiary of Prince. The board of directors of Ferro has approved the Merger Agreement. On the terms and subject to the conditions set forth in the Merger Agreement, at the effective time of the Merger (the “Effective Time”), and as a result of the Merger, each share of common stock of Ferro (“Ferro Common Stock”) that is issued and outstanding immediately prior to the Effective Time (other than (i) shares of Ferro Common Stock held by Ferro as treasury stock or held directly by Prince or any subsidiary of Prince (including Merger Sub) immediately prior to the Effective Time (which will be canceled without payment of any consideration), (ii) shares of Ferro Common Stock for which dissenters rights have been properly exercised and perfected and not withdrawn and (iii) shares of restricted stock) will be converted into the right to receive $22.00 in cash, without interest (the “Merger Consideration”). Pursuant to the Merger Agreement, as of the Effective Time, each option to acquire shares of Ferro Common Stock, whether vested or unvested, that is outstanding immediately prior to the Effective Time will be converted into the right to receive an amount in cash (less any applicable withholding taxes) equal to (A) the number of shares of Ferro Common Stock subject to such option, multiplied by (B) the excess, if any, of the Merger Consideration over the applicable per share exercise price of such option. In addition, pursuant to the Merger Agreement, as of the Effective Time, (i) each outstanding share of Ferro restricted stock, each restricted share unit (other than performance share units), deferred share unit, phantom share unit or similar stock right, whether vested or unvested, that is outstanding immediately prior to the Effective Time will be converted into the right to receive an amount in cash (less any applicable withholding taxes) equal to (A) the number of shares of Ferro Common Stock subject to such right, multiplied by (B) the Merger Consideration, and (ii) each Ferro performance-based share unit, whether vested or unvested, that is outstanding immediately prior to the Effective Time will be converted into the right to receive an amount in cash (less any applicable withholding taxes) equal to (A) the number of shares of Ferro Common Stock subject to such performance-based share unit, calculated based on the greater of (x) actual performance achieved in accordance with the terms of such performance-based share unit and the Merger Agreement and (y) target level performance over the entire performance period applicable with respect to such performance-based share unit, multiplied by (B) the Merger Consideration. Ferro and Prince have agreed to use their respective reasonable best efforts to consummate the Merger, including making filings with and seeking approvals from certain governmental entities necessary in connection with the Merger, including under the Hart-Scott-Rodino Antitrust Improvements Act of 1976, as amended (the “HSR Act”). In furtherance thereof, Prince has agreed to accept certain divestitures or restrictions on the assets of Prince, Ferro and their respective subsidiaries, if and to the extent necessary to obtain such approvals, subject to certain specified limitations set forth in the Merger Agreement. Consummation of the Merger is subject to certain customary conditions, including (i) the adoption of the Merger Agreement by the holders of two-thirds of the outstanding shares of Ferro Common Stock, (ii) the absence of any law prohibiting or order preventing the consummation of the Merger, (iii) the receipt of certain regulatory approvals, including expiration or termination of any applicable waiting period under the HSR Act, (iv) the absence of a material adverse effect with respect to Ferro, and (v) compliance in all material respects on the part of each of Ferro and Prince with such party’s covenants under the Merger Agreement. The obligation of each party to consummate the Merger is also conditioned upon the other party’s representations and warranties being true and correct, subject to certain materiality exceptions.

Significant Accounting Policies

Significant Accounting Policies	12 Months Ended
	Dec. 31, 2021
Accounting Policies [Abstract]
Significant Accounting Policies	Significant Accounting Policies Principles of Consolidation Our consolidated financial statements include the accounts of the parent company and the accounts of its subsidiaries and include the results of the Company and all entities in which the Company has a controlling interest. When we consolidate our financial statements, we eliminate intercompany transactions, accounts and profits. When we exert significant influence over an investee but do not control it, we account for the investment and the investment income using the equity method. These investments are reported in Other non-current assets on our consolidated balance sheet. We consolidate financial results for three legal entities in which we do not own 100% of the equity interests, either directly or indirectly through our subsidiaries. These entities have non-controlling interest ownerships ranging from 24.6% to 41.0%. When we acquire a subsidiary, its financial results are included in our consolidated financial statements from the date of the acquisition. When we dispose of a subsidiary, its financial results are included in our consolidated financial statements until the date of the disposition. In the event that a disposal group meets the criteria for discontinued operations, prior periods are adjusted to reflect the classification. Use of Estimates and Assumptions in the Preparation of Financial Statements We prepare our consolidated financial statements in conformity with accounting principles generally accepted in the United States, which requires us to make estimates and to use judgments and assumptions that affect the timing and amount of assets, liabilities, equity, revenues and expenses recorded and disclosed. The more significant estimates and judgments relate to revenue recognition, restructuring and cost reduction programs, asset impairment, income taxes, inventories, goodwill, pension and other postretirement benefits and environmental liabilities. Actual outcomes could differ from our estimates, resulting in changes in revenues or costs that could have a material impact on the Company’s results of operations, financial position, or cash flows. Foreign Currency Translation The financial results of our operations outside of the U.S. are recorded in local currencies, which generally are also the functional currencies for financial reporting purposes. The results of operations outside of the U.S. are translated from these functional currencies into U.S. dollars using the average monthly currency exchange rates. We use the average currency exchange rate for these results of operations as a reasonable approximation of the results had specific currency exchange rates been used for each individual transaction. Foreign currency transaction gains and losses are recorded, as incurred, as Other expense (income) in the consolidated statements of operations. Assets and liabilities are translated into U.S. dollars using exchange rates at the balance sheet dates, and we record the resulting foreign currency translation adjustments as a separate component of Accumulated other comprehensive loss in equity. Revenue Recognition Under Accounting Standards Codification (“ASC”) 606, revenues are recognized when control of the promised goods is transferred to our customers, in an amount that reflects the consideration we expect to be entitled to in exchange for those goods. In order to achieve that core principle, the Company applies the following five-step approach: 1) identify the contract with a customer; 2) identify the performance obligations; 3) determine the transaction price; 4) allocate the transaction price to the performance obligations in the contract; and 5) recognize revenue when a performance obligation is satisfied. The Company considers confirmed customer purchase orders, which in some cases are governed by master sales agreements, to be the contracts, from an accounting perspective, with customers. Under our standard contracts, the only performance obligation is the delivery of manufactured goods and the performance obligation is satisfied at a point in time, when the Company transfers control of the manufactured goods. The Company may receive orders for products to be delivered over multiple dates that may extend across several reporting periods. The Company invoices for each order and recognizes revenue for each distinct product upon shipment, once transfer of control has occurred. Payment terms are standard for the industry and jurisdiction in which we operate. In determining the transaction price, the Company evaluates whether the price is subject to refund or adjustment, to determine the net consideration to which the Company expects to be entitled. Discounts or rebates are specifically stated in customer contracts or invoices, and are recorded as a reduction of revenue in the period the related revenue is recognized. The product price as specified on the customer confirmed orders is considered the standalone selling price. The Company allocates the transaction price to each distinct product based on its relative standalone selling price. Revenue is recognized when control of the product is transferred to the customer (i.e., when the Company’s performance obligation is satisfied), which generally occurs at shipment. We review material contracts to determine transfer of control based upon the business practices and legal requirements of each country. For sales of all products, including those containing precious metals, we report revenues on a gross basis, along with their corresponding cost of sales to arrive at gross profit. The amount of shipping and handling fees invoiced to our customers at the time our product is shipped is included in net sales as we are the principal in those activities. Sales, valued-added and other taxes collected from our customers and remitted to governmental authorities are excluded from net sales. Credit memos issued to customers for sales returns and sales adjustments are recorded when they are incurred as a reduction of sales. Practical Expedients and Exemptions All material contracts have an original duration of one year or less and, as such, the Company uses the practical expedient applicable to such contracts, and has not disclosed the transaction price for the remaining performance obligations as of the end of each reporting period, or when the Company expects to recognize this revenue. When the period of time between the transfer of control of the goods and the time the customer pays for the goods is one year or less, the Company uses the practical expedient allowed by ASC 606 that provides relief from adjusting the amount of promised consideration for the effects of a financing component. We generally expense sales commissions when incurred because the amortization period is one year or less. These costs are recorded within Selling, general and administrative expenses. Research and Development Expenses Research and development expenses are expensed as incurred and are included in Selling, general and administrative expenses. Total expenditures for product and application technology, including research and development, customer technical support and other related activities, were approximately $32.6 million for 2021, $35.6 million for 2020 and $41.0 million for 2019. Restructuring Programs We expense costs associated with exit and disposal activities designed to restructure operations and reduce ongoing costs of operations when we incur the related liabilities or when other triggering events occur. After the appropriate level of management, having the authority, approves the detailed restructuring plan and the appropriate criteria for recognition are met, we establish accruals for employee termination and other costs, as applicable. The accruals are estimates that are based upon factors including statutory and union requirements, affected employees’ lengths of service, salary level, health care benefit choices and contract provisions. We also analyze the carrying value of affected long-lived assets for impairment and reductions in their remaining estimated useful lives. In addition, we record the fair value of any new or remaining obligations when existing operating lease contracts are terminated or abandoned as a result of our exit and disposal activities. Asset Impairment The Company’s long-lived and indefinite-lived assets include property, plant and equipment, goodwill, and intangible assets. We review property, plant and equipment and intangible assets for impairment whenever events or circumstances indicate that their carrying values may not be recoverable. The following are examples of such events or changes in circumstances: • An adverse change in the business climate of a long-lived asset or asset group; • An adverse change in the extent or manner in which a long-lived asset or asset group is used or in its physical condition; • Current operating losses for a long-lived asset or asset group combined with a history of such losses or projected or forecasted losses that demonstrate that the losses will continue; or • A current expectation that, more likely than not, a long-lived asset or asset group will be sold or otherwise significantly disposed of before the end of its previously estimated useful life. The carrying amount of property, plant and equipment and intangible assets is not recoverable if the carrying value of the asset group exceeds the sum of the undiscounted cash flows expected to result from the use and eventual disposition of the asset group. In the event of impairment, we recognize a loss for the excess of the recorded value over fair value. The long-term nature of these assets requires the estimation of cash inflows and outflows several years into the future and only takes into consideration technological advances known at the time of review. We review goodwill for impairment annually using a measurement date of October 31, primarily due to the timing of our annual budgeting process, or more frequently in the event of an impairment indicator. The fair value of each reporting unit that has goodwill is estimated using the average of both the income approach and the market approach, which we believe provides a reasonable estimate of the reporting unit’s fair value, unless facts or circumstances exist which indicate a more representative fair value. The income approach is a discounted cash flow model, which uses projected cash flows attributable to the reporting unit, including an allocation of certain corporate expenses based primarily on proportional sales. We use historical results, trends and our projections of market growth, internal sales efforts and anticipated cost structure assumptions to estimate future cash flows. Using a risk-adjusted, weighted-average cost of capital, we discount the cash flow projections to the measurement date. The market approach estimates a price reasonably expected to be paid by a market participant in the purchase of the reporting units based on a comparison to similar businesses. If the fair value of any reporting unit was determined to be less than its carrying value, we would obtain comparable market values or independent appraisals of its net assets. Derivative Financial Instruments As part of our risk management activities, we employ derivative financial instruments, primarily interest rate swaps, cross currency swaps and foreign currency forward contracts, to hedge certain anticipated transactions, firm commitments, or assets and liabilities denominated in foreign currencies. We also purchase portions of our energy and precious metal requirements under fixed price forward purchase contracts designated as normal purchase contracts. We record derivatives on our balance sheet as either assets or liabilities that are measured at fair value. For derivative instruments that are designated and qualify as cash flow hedges, the gain or loss on the derivative is reported as a component of Accumulated other comprehensive loss (“AOCL”) and reclassified from AOCL into earnings when the hedged transaction affects earnings. For derivatives that are designated and qualify as net investment hedges, the gain or loss on the derivative is reported as a component of the currency translation in AOCL. Time value is excluded and the cash payments are recognized as an adjustment to interest expense. For derivatives that are not designated as hedges, the gain or loss on the derivative is recognized in current earnings. We only use derivatives to manage well-defined risks and do not use derivatives for speculative purposes. Postretirement and Other Employee Benefits We recognize postretirement and other employee benefits expense as employees render the services necessary to earn those benefits. We determine defined benefit pension and other postretirement benefit costs and obligations with the assistance of third parties who perform certain actuarial calculations. The calculations and the resulting amounts recorded in our consolidated financial statements are affected by assumptions including the discount rate, expected long-term rate of return on plan assets, the annual rate of change in compensation for plan-eligible employees, estimated changes in costs of healthcare benefits, mortality tables, and other factors. We evaluate the assumptions used on an annual basis. All costs except the service cost component are recorded in Miscellaneous expense (income), net on the consolidated statement of operations. Income Taxes We account for income taxes in accordance with ASC Topic 740, Income Taxes, which requires the recognition of deferred tax assets and liabilities for the expected future tax effects of events that have been included in the financial statements. Under this method, deferred tax assets and liabilities are determined based on the differences between the financial statement and tax basis of assets and liabilities 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. We record deferred tax assets to the extent we believe these assets will more likely than not be realized. In making such determination, we consider all available positive and negative evidence, including future reversals of existing temporary differences, the availability of tax planning strategies, forecasted income, and recent financial operations. We recognize a tax benefit from an uncertain tax position when it is more likely than not that the position will be sustained upon examination, including resolutions of any related appeals or litigation processes, based on the technical merits. We recognize interest and penalties related to uncertain tax positions within the income tax expense line in the accompanying consolidated statements of operations. Cash Equivalents We consider all highly liquid instruments with original maturities of three months or less when purchased to be cash equivalents. These instruments are carried at cost, which approximates fair value. Accounts Receivable and the Allowance for Doubtful Accounts Ferro sells its products to customers in diversified industries throughout the world. No customer or related group of customers represents greater than 10% of net sales or accounts receivable. We perform ongoing credit evaluations of our customers and require collateral principally for export sales, when industry practices allow and as market conditions dictate, subject to our ability to negotiate secured terms relative to competitive offers. We regularly analyze significant customer accounts and provide for uncollectible accounts based on historical experience, customer payment history, the length of time the receivables are past due, the financial health of the customer, economic conditions and specific circumstances, as appropriate. Changes in these factors could result in additional allowances. Customer accounts we conclude to be uncollectible or to require excessive collection costs are written off against the allowance for doubtful accounts. Historically, write-offs of uncollectible accounts have been within our expectations. Detailed information about the allowance for doubtful accounts is provided below: (Dollars in thousands) 2021 2020 2019 Allowance for doubtful accounts $ 1,960 $ 2,502 $ 1,756 Bad debt expense 692 255 455 Inventories We value inventory at the lower of cost or net realizable value, with cost determined utilizing the first-in, first-out (“FIFO”) method. We periodically evaluate the net realizable value of inventories based primarily upon their age, but also upon assumptions of future usage in production, customer demand and market conditions. Inventory values have been reduced to the lower of cost or net realizable value by allowances for slow moving or obsolete goods. We maintain raw materials on our premises that we do not own, including precious metals consigned from financial institutions and customers. We also consign inventory from our vendors. Although we have physical possession of the goods, their value is not reflected on our balance sheet because we do not have legal title. We obtain precious metals under consignment agreements with financial institutions for periods of one year or less. These precious metals are primarily silver, gold, platinum, and palladium and are used in the production of certain products for our customers. Under these arrangements, the financial institutions own the precious metals, and accordingly, we do not report these precious metals as inventory on our consolidated balance sheets although they are physically in our possession. The financial institutions charge us fees for these consignment arrangements, and these fees are recorded as cost of sales. These agreements are cancelable by either party at the end of each consignment period, however, because we have access to a number of consignment arrangements with available capacity, our consignment needs can be shifted among the other participating institutions in order to ensure our supply. In certain cases, these financial institutions can require cash deposits to provide additional collateral beyond the value of the underlying precious metals. Property, Plant and Equipment We record property, plant and equipment at historical cost. In addition to the original purchased cost, including transportation, installation and taxes, we capitalize expenditures that increase the utility or useful life of existing assets. For constructed assets, we capitalize interest costs incurred during the period of construction. We expense repair and maintenance costs, as incurred. We depreciate property, plant and equipment on a straight-line basis, generally over the following estimated useful lives of the assets: Buildings 20 to 40 years Machinery and equipment 5 to 15 years Other Capitalized Costs We capitalize the costs of computer software developed or obtained for internal use after the preliminary project stage has been completed, and management, with the relevant authority, authorizes and commits to funding a computer software project, and it is probable that the project will be completed and the software will be used to perform the function intended. External direct costs of materials and services consumed in developing or obtaining internal-use computer software, payroll and payroll-related costs for employees who are directly associated with the project, and interest costs incurred when developing computer software for internal use are capitalized within Intangible assets. Capitalization ceases when the project is substantially complete, generally after all substantial testing is completed. We expense training costs and data conversion costs as incurred. We amortize software on a straight-line basis over its estimated useful life, which has historically been in a range of 1 to 10 years. Environmental Liabilities As part of the production of some of our products, we handle, process, use and store hazardous materials. As part of these routine processes, we expense recurring costs associated with control and disposal of hazardous materials as they are incurred. Occasionally, we are subject to ongoing, pending or threatened litigation related to the handling of these materials or other matters. If, based on available information, we believe that we have incurred a liability and we can reasonably estimate the amount, we accrue for environmental remediation and other contingent liabilities. We disclose material contingencies if the likelihood of the potential loss is reasonably possible but the amount is not reasonably estimable. In estimating the amount to be accrued for environmental remediation, we use assumptions about: • Remediation requirements at the contaminated site; • The nature of the remedy; • Existing technology; • The outcome of discussions with regulatory agencies; • Other potentially responsible parties at multi-party sites; and • The number and financial viability of other potentially responsible parties. We actively monitor the status of sites, and, as assessments and cleanups proceed, we update our assumptions and adjust our estimates as necessary. Because the timing of related payments is uncertain, we do not discount the estimated remediation costs. The following section provides a description of new accounting pronouncements ("Accounting Standard Update" or "ASU") issued by the Financial Accounting Standards Board ("FASB") that are applicable to the Company. Recently Adopted Accounting Pronouncement This section provides a description of new accounting pronouncements issued by the FASB that are applicable to the Company. The following ASU was adopted as of January 1, 2021 and did not have a material impact on the consolidated financial statements: Standard Description ASU No. 2018-14, Compensation-Retirement Benefits-Defined Benefit Plans-General (Subtopic 715-20): Disclosure Framework-Changes to the Disclosure Requirements for Defined Benefit Plans , issued August, 2018 Modifies disclosure requirements for employers that sponsor defined benefit pension or other postretirement plans. New Accounting Standards Not Yet Adopted We are currently evaluating the impact on our financial statements of the following ASUs: Standard Description ASU No. 2020-04, Reference Rate Reform (Topic 848): Facilitation of the Effects of Reference Rate Reform on Financial Reporting , issued March, 2020 Along with ASU 2021-01, Reference Rate Reform (Topic 848): Scope , provide optional expedients and exceptions for applying GAAP to contracts, hedging relationships, and other transactions affected by reference rate reform if certain criteria are met. The amendments in these ASUs are effective for all entities through December 31, 2022. ASU No. 2021-08 - Business Combinations (Topic 805): Accounting for Contract Assets and Contract Liabilities from Contracts with Customers, issued October 2021 Requires that an entity recognize and measure contract assets and contract liabilities acquired in a business combination in accordance with Topic 606. The amendments in this ASU are effective for fiscal years beginning after December 15, 2022, including interim periods within those fiscal years. No other new accounting pronouncements issued had, or are expected to have, a material impact of the Company’s consolidated financial statements.

Revenue

Revenue	12 Months Ended
	Dec. 31, 2021
Revenue from Contract with Customer [Abstract]
Revenue	Revenue Revenues disaggregated by geography and reportable segment for the year ended December 31, 2021, follow: (Dollars in thousands) EMEA Americas Asia Pacific Total Functional Coatings $ 342,396 $ 266,745 $ 122,922 $ 732,063 Color Solutions 144,446 205,473 44,282 394,201 Total net sales $ 486,842 $ 472,218 $ 167,204 $ 1,126,264 Revenues disaggregated by geography and reportable segment for the year ended December 31, 2020, follow: (Dollars in thousands) EMEA Americas Asia Pacific Total Functional Coatings $ 267,041 $ 240,424 $ 100,727 $ 608,192 Color Solutions 129,222 181,319 40,221 350,762 Total net sales $ 396,263 $ 421,743 $ 140,948 $ 958,954 Revenues disaggregated by geography and reportable segment for the year ended December 31, 2019, follow: (Dollars in thousands) EMEA Americas Asia Pacific Total Functional Coatings $ 295,198 $ 248,064 $ 101,521 $ 644,783 Color Solutions 136,934 195,255 37,485 369,674 Total net sales $ 432,132 $ 443,319 $ 139,006 $ 1,014,457

Discontinued Operations

Discontinued Operations	12 Months Ended
	Dec. 31, 2021
Discontinued Operations and Disposal Groups [Abstract]
Discontinued Operations	Discontinued Operations During the fourth quarter of 2019, substantially all of the assets and liabilities of our Tile Coatings business were classified as held-for-sale in the accompanying consolidated balance sheets. We entered into a definitive agreement to sell our Tile Coatings business, which has historically been a part of our Performance Coatings reportable segment. Therefore, the associated operating results, net of income tax, have been classified as discontinued operations in the accompanying consolidated statements of operations for all periods presented. On February 25, 2021, we completed the sale of our Tile Coatings business to Pigments Spain, S.L., a company of the Esmalglass-Itaca-Fritta group (the “Buyer”), which is a portfolio company of certain Lone Star Funds, for $460.0 million in cash, subject to post-closing adjustments. The transaction resulted in net proceeds of approximately $402.1 million after expenses and a gain of $94.8 million, which is recorded within Income (loss) from discontinued operations, net of income taxes in our consolidated statement of operations for the period ended December 31, 2021. During the fourth quarter of 2021, we finalized our post-closing adjustments with the Buyer for $13.1 million. We entered into a Transition Services Agreement (“TSA”) with the Buyer, which is designed to facilitate an orderly transfer of business operations. The services provided under the TSA will terminate at various points in times between six to twelve months from the completion of the sale. Except for transition services, we have no continuing involvement with the Buyer subsequent to the completion of the sale. The table below summarizes results for the Tile Coatings business for the years ended December 31, 2021, 2020 and 2019 which are reflected in our consolidated statements of operations as discontinued operations. Interest expense has been allocated to the discontinued operations based on the ratio of net assets of the business to consolidated net assets excluding debt. (Dollars in thousands) 2021 2020 2019 Net sales $ 83,579 $ 440,501 $ 491,493 Cost of sales 60,634 327,505 388,959 Gross profit 22,945 112,996 102,534 Selling, general and administrative expenses 20,327 72,033 71,591 Restructuring and impairment charges 303 2,290 44,378 Interest expense 1,682 10,650 11,556 Interest earned (189) (184) (122) Foreign currency losses (gains), net 363 6,608 (2,397) Gain on sale of business, net (94,832) — — Miscellaneous expense, net 251 2,281 2,127 Income (loss) from discontinued operations before income taxes 95,040 19,318 (24,599) Income tax expense 17,841 5,315 2,812 Income (loss) from discontinued operations, net of income taxes 77,199 14,003 (27,411) Less: Net income attributable to noncontrolling interests 64 171 290 Net income (loss) attributable to Tile Coatings business $ 77,135 $ 13,832 $ (27,701) The following table summarizes the assets and liabilities which are classified as held-for-sale at December 31, 2020: (Dollars in thousands) December 31, Cash and cash equivalents $ 8,200 Accounts receivable, net 211,548 Inventories 84,239 Other receivables 1,630 Other current assets 2,237 Current assets held-for-sale 307,854 Property, plant and equipment, net 93,430 Amortizable intangible assets, net 42,126 Deferred income taxes 12,267 Other non-current assets 6,384 Non-current assets held-for-sale 154,207 Total assets held-for-sale $ 462,061 Loans payable and current portion of long-term debt $ 3,927 Accounts payable 85,308 Accrued payrolls 5,946 Accrued expenses and other current liabilities 12,364 Current liabilities held-for-sale 107,545 Long-term debt, less current portion 56,359 Postretirement and pension liabilities 8,119 Other non-current liabilities 6,671 Non-current liabilities held-for-sale 71,149 Total liabilities held-for-sale $ 178,694 The following table summarizes cash flow data relating to discontinued operations for the years ended December 31, 2021, 2020 and 2019: (Dollars in thousands) 2021 2020 2019 Depreciation $ — $ — $ 11,264 Amortization of intangible assets — — 3,192 Capital expenditures (1,074) (4,713) (9,965) Gain on sale of discontinued operations (94,832) — — Non-cash operating activities - goodwill impairment — — 42,515 Non-cash operating activities - restructuring — 1,080 127 Non-cash investing activities - capital expenditures, consisting of unpaid capital expenditure liabilities at year end — 1,493 1,087

Inventories

Inventories	12 Months Ended
	Dec. 31, 2021
Inventory Disclosure [Abstract]
Inventories	Inventories Inventory at December 31, 2021 and 2020 consisted of the following: (Dollars in thousands) 2021 2020 Raw materials $ 80,519 $ 81,344 Work in process 45,653 48,770 Finished goods 136,497 130,218 Total inventories $ 262,669 $ 260,332 In the production of some of our products, we use precious metals, some of which we obtain from financial institutions under consignment agreements with terms of one year or less. The financial institutions retain ownership of the precious metals and charge us fees based on the amounts we consign. These fees were $2.8 million for 2021, $2.9 million for 2020, and $3.1 million for 2019. We had on hand precious metals owned by participants in our precious metals consignment program of $95.4 million at December 31, 2021 and $87.2 million at December 31, 2020, measured at fair value based on market prices for identical assets.

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, net at December 31, 2021 and 2020 consisted of the following: (Dollars in thousands) 2021 2020 Land $ 37,237 $ 39,500 Buildings 222,391 201,400 Machinery and equipment 485,030 487,327 Construction in progress 30,417 76,800 Total property, plant and equipment 775,075 805,027 Total accumulated depreciation (453,319) (474,982) Property, plant and equipment, net $ 321,756 $ 330,045 Depreciation expense was $28.9 million for 2021, $27.8 million for 2020, and $28.3 million for 2019. Additional depreciation expense of $11.3 million for 2019 was classified within Income (loss) from discontinued operations, net of income taxes. Noncash investing activities for capital expenditures, consisting of new capital leases during the year and unpaid capital expenditure liabilities at year end, were $3.8 million for 2021, $5.3 million for 2020, and $3.5 million for 2019. As discussed in Note 4, the assets of our Tile Coatings business have been classified as held-for-sale under ASC Topic 360; Property, Plant and Equipment ; until the ultimate sale of the business. As such, at each historical reporting date, these assets were tested for impairment comparing the fair value of the assets less costs to sell to the carrying value. The fair value was determined using both the market approach and income approach, utilizing Level 3 measurements within the fair value hierarchy, which indicated the fair value less costs to sell exceeded the carrying value. We recorded no impairment charges related to property, plant and equipment as a result of the analysis.

Goodwill and Other Intangible A

Goodwill and Other Intangible Assets	12 Months Ended
	Dec. 31, 2021
Goodwill and Intangible Assets Disclosure [Abstract]
Goodwill and Other Intangible Assets	. Goodwill and Other Intangible Assets Details and activity in the Company’s goodwill by segment are as follows: (Dollars in thousands) Functional Color Total Goodwill, net at December 31, 2019 $ 121,905 $ 50,307 $ 172,212 Foreign currency adjustments 1,665 1,474 3,139 Goodwill, net at December 31, 2020 123,570 51,781 175,351 Foreign currency adjustments (2,791) (716) (3,507) Goodwill, net at December 31, 2021 $ 120,779 $ 51,065 $ 171,844 (Dollars in thousands) December 31, December 31, Goodwill, gross $ 230,311 $ 233,818 Accumulated impairment losses (58,467) (58,467) Goodwill, net $ 171,844 $ 175,351 During the fourth quarter of 2021 and 2020, we performed our annual goodwill impairment testing. The test entailed comparing the fair value of our reporting units to their carrying value as of the measurement date of October 31, 2021 and October 31, 2020, respectively. We performed step 1 of the annual impairment test as defined in ASC Topic 350, Intangibles - Goodwill and Other . We estimate fair values of the reporting units using the average of both the income approach and the market approach, which we believe provides a reasonable estimate of the reporting units’ fair values, unless facts and circumstances exist that indicate more representative fair values. The income approach uses projected cash flows attributable to the reporting units and allocates certain corporate expenses to the reporting units. We use historical results, trends and our projections of market growth, internal sales efforts and anticipated cost structure assumptions to estimate future cash flows. Using a risk-adjusted, weighted-average cost of capital, we discount the cash flow projections to the measurement date. The significant assumptions used in our impairment analysis of goodwill are the weighted-average cost of capital and revenue growth rates. During our 2021 and 2020 assessments, the result of the goodwill impairment test was that there were no indicators of impairment associated with our continuing operations. The Company is not aware of any events or circumstances that occurred between the annual assessment date and December 31, 2021, which would require further testing of goodwill for impairment. During 2019, the assets pertaining to our Tile Coatings business were classified as held-for-sale and the goodwill was immaterial at December 31, 2020. During 2019, the Company recorded goodwill impairment charges of $42.5 million within our Tile Coatings business, which is included in Net income from discontinued operations, net of taxes. The fair value of the assets within the Tile Coatings business was valued below its carrying value, resulting in a $33.5 million goodwill impairment charge in the fourth quarter of 2019. There were additional $5.9 million and $3.1 million of goodwill impairment charges in the second and third quarter of 2019, respectively, which was a result of the finalization of purchase accounting of the Quimicer, FMU, and Gardenia acquisitions. Amortizable intangible assets at December 31, 2021 and 2020 consisted of the following: (Dollars in thousands) Estimated 2021 2020 Gross amortizable intangible assets: Patents 10 - 16 years $ 5,465 $ 5,589 Land rights 20 - 40 years 3,257 3,173 Technology/know-how and other 1 - 30 years 116,154 116,015 Customer relationships 10 - 20 years 64,917 68,142 Total gross amortizable intangible assets 189,793 192,919 Accumulated amortization: Patents (5,444) (5,566) Land rights (1,762) (1,630) Technology/know-how and other (67,638) (61,104) Customer relationships (21,035) (18,317) Total accumulated amortization (95,879) (86,617) Amortizable intangible assets, net $ 93,914 $ 106,302 We amortize amortizable intangible assets on a straight-line basis over the estimated useful lives of the assets. Amortization expense related to amortizable intangible assets was $11.3 million for 2021, $12.0 million for 2020, and $13.0 million for 2019. Amortization expense for amortizable intangible assets is expected to be approximately $11.3 million for 2022, $11.1 million for 2023, $11.0 million for 2024, $10.8 million for 2025, and $10.6 million for 2026. Indefinite-lived intangible assets at December 31, 2021 and 2020 consisted of the following: (Dollars in thousands) 2021 2020 Indefinite-lived intangibles assets: Trade names and trademarks $ 12,763 $ 13,198

Debt and Other Financing

Debt and Other Financing	12 Months Ended
	Dec. 31, 2021
Debt Disclosure [Abstract]
Debt and Other Financing	. Debt and Other Financing Loans payable and current portion of long-term debt at December 31, 2021 and 2020 consisted of the following: (Dollars in thousands) 2021 2020 Current portion of long-term debt $ 8,964 $ 8,839 Loans payable and current portion of long-term debt $ 8,964 $ 8,839 Long-term debt at December 31, 2021 and 2020 consisted of the following: (Dollars in thousands) 2021 2020 Term loan facility, net of unamortized issuance costs, maturing 2024 (1) $ 253,450 $ 793,731 Capital lease obligations 2,497 2,911 Other notes 4,327 3,706 Total long-term debt 260,274 800,348 Current portion of long-term debt (8,964) (8,839) Long-term debt, less current portion $ 251,310 $ 791,509 (1) The carrying value of the term loan facility, maturing 2024, is net of unamortized debt issuance costs of $0.8 million at December 31, 2021 and $3.7 million at December 31, 2020. The annual maturities of long-term debt for each of the five years after December 31, 2021, are as follows (in thousands): 2022 $ 9,056 2023 8,977 2024 238,645 2025 758 2026 624 Thereafter 3,499 Total maturities of long-term debt 261,559 Unamortized issuance costs on Term loan facility (800) Imputed interest and executory costs on capitalized lease obligations (485) Total long-term debt $ 260,274 Amended Credit Facility On April 25, 2018, the Company entered into an amendment (the “Amended Credit Facility”) to its existing credit facility (the “Credit Facility”), which Amended Credit Facility (a) provided a new revolving facility (the “2018 Revolving Facility”), which replaced the Company’s existing revolving facility, (b) repriced the (“Tranche B-1 Loans”), and (c) provided new tranches of term loans (“Tranche B-2 Loans” and “Tranche B-3 Loans”) denominated in U.S. dollars. On May 4, 2020, the Company entered into an amendment (Third Amendment to Credit Agreement) to the Amended Credit Facility, which added an approval to Section 7.2.8 Permitted Dispositions for the Tile Coatings Business Disposition. On December 13, 2021, the Company entered into an agreement to suspend the right from and after December 31, 2021 the ability to select a LIBOR interest period of two months for any borrowing under the Amended Credit Facility caused by this duration period becoming increasingly illiquid, in lieu of amending the Amended Credit Facility or irrevocably waiving any right thereunder. The Amended Credit Facility will be used for ongoing working capital requirements and general corporate purposes. The Tranche B-2 Loans are borrowed by the Company and the Tranche B-3 Loans are borrowed on a joint and several basis by Ferro GmbH and Ferro Europe Holdings LLC. The Amended Credit Facility consists of a $500 million secured revolving line of credit with a maturity of February 14, 2023, a $355 million secured term loan facility with a maturity of February 14, 2024, a $235 million secured term loan facility with a maturity of February 14, 2024 and a $230 million secured term loan facility with a maturity of February 14, 2024. The term loans are payable in equal quarterly installments in an amount equal to 0.25% of the original principal amount of the term loans, with the remaining balance due on the maturity date thereof. In addition, the Company is required, on an annual basis, to make a prepayment in an amount equal to a portion of the Company’s excess cash flow, as calculated pursuant to the Amended Credit Facility, which prepayment will be applied first to the term loans until they are paid in full, and then to the revolving loans. Subject to the satisfaction of certain conditions, the Company can request additional commitments under the revolving line of credit or term loans in the aggregate principal amount of up to $250 million to the extent that existing or new lenders agree to provide such additional commitments and/or term loans. The Company can also raise certain additional debt or credit facilities subject to satisfaction of certain covenant levels. Certain of the Company’s U.S. subsidiaries have guaranteed the Company’s obligations under the Amended Credit Facility and such obligations are secured by (a) substantially all of the personal property of the Company and the U.S. subsidiary guarantors and (b) a pledge of 100% of the stock of certain of the Company’s U.S. subsidiaries and 65% of the stock of certain of the Company’s direct foreign subsidiaries. The Tranche B-3 Loans are guaranteed by the Company, the U.S. subsidiary guarantors and a cross-guaranty by the borrowers of the Tranche B-3 Loans and are secured by the collateral securing the revolving loans and the other term loans, in addition to a pledge of the equity interests of Ferro GmbH. Interest Rate – Term Loans: The interest rates applicable to the term loans will be, at the Company’s option, equal to either a base rate or a LIBOR rate plus, in both cases, an applicable margin. • The base rate for term loans will be the highest of (i) the federal funds rate plus 0.50%, (ii) syndication agent’s prime rate, (iii) the daily LIBOR rate plus 1.00% or (iv) 0.00%. The applicable margin for base rate loans is 1.25%. • The LIBOR rate for term loans shall not be less than 0.00% and the applicable margin for LIBOR rate term loans is 2.25%. • For LIBOR rate term loans, the Company may choose to set the duration on individual borrowings for periods of one, three or six months, with the interest rate based on the applicable LIBOR rate for the corresponding duration. At December 31, 2021, the Company had borrowed $110.1 million under the Tranche B-1 Loans at an interest rate of 2.47%, $72.9 million under the Tranche B-2 Loans at an interest rate of 2.47%, and $71.3 million under the Tranche B-3 Loans at an interest rate of 2.47%. At December 31, 2021, there were no additional borrowings available under the Tranche B-1 Loans, Tranche B-2 Loans, and Tranche B-3 Loans. In connection with these borrowings, we entered into swap agreements in the second quarter of 2018. At December 31, 2021, the effective interest rate for all tranches of the term loan facility, inclusive of hedging activities, was 3.58%. At December 31, 2020, the Company had borrowed $345.2 million under the Tranche B-1 Loans at an interest rate of 2.50%, $228.5 million under the Tranche B-2 Loans at an interest rate of 2.50%, and $223.7 million under the Tranche B-3 Loans at an interest rate of 2.50%. At December 31, 2020, there were no additional borrowings available under the Tranche B-1 Loans, Tranche B-2 Loans, and Tranche B-3 Loans. In connection with these borrowings, we entered into swap agreements in the second quarter of 2018. At December 31, 2020, the effective interest rate for all tranches of the term loan facility, inclusive of hedging activities, was 3.55%. Interest Rate – Revolving Credit Line: The interest rates applicable to loans under the 2018 Revolving Credit Facility will be, at the Company’s option, equal to either a base rate or a LIBOR rate plus, in both cases, an applicable variable margin. The variable margin will be based on the ratio of (a) the Company’s total consolidated net debt outstanding (as defined in the Amended Credit Agreement) at such time to (b) the Company’s consolidated EBITDA (as defined in the Amended Credit Agreement) computed for the period of four consecutive fiscal quarters most recently ended. • The base rate for revolving loans will be the highest of (i) the federal funds rate plus 0.50%, (ii) the syndication agent’s prime rate, (iii) the daily LIBOR rate plus 1.00% or (iv) 0.00%. The applicable margin for base rate loans will vary between 0.50% to 1.50%. • The LIBOR rate for revolving loans shall not be less than 0.00% and the applicable margin for LIBOR rate revolving loans will vary between 1.50% and 2.50%. • For LIBOR rate revolving loans, the Company may choose to set the duration on individual borrowings for periods of one, three or six months, with the interest rate based on the applicable LIBOR rate for the corresponding duration. At December 31, 2021, there were no borrowings under the 2018 Revolving Credit Facility. After reductions for outstanding letters of credit secured by these facilities, we had $496.1 million of borrowings available under the revolving credit facilities at December 31, 2021. At December 31, 2020, there were no borrowings under the 2018 Revolving Credit Facility. After reductions for outstanding letters of credit secured by these facilities, we had $495.8 million of borrowings available under the revolving credit facilities at December 31, 2020. The Amended Credit Facility contains customary restrictive covenants including, but not limited to, limitations on use of loan proceeds, limitations on the Company’s ability to pay dividends and repurchase stock, limitations on acquisitions and dispositions, and limitations on certain types of investments. The Amended Credit Facility also contains standard provisions relating to conditions of borrowing and customary events of default, including the non-payment of obligations by the Company and the bankruptcy of the Company. Specific to the 2018 Revolving Facility, the Company is subject to a financial covenant regarding the Company’s maximum leverage ratio. If an event of default occurs, all amounts outstanding under the Amended Credit Facility agreement may be accelerated and become immediately due and payable. At December 31, 2021, we were in compliance with the covenants of the Amended Credit Facility. As noted in Note 4, on February 25, 2021, we completed the sale of our Tile Coatings business. Proceeds from the close of the transaction, in addition to current cash balances, were used to pay down our term loan facility in the amount of $435.0 million on February 25, 2021. The debt pay-down reduced outstanding amounts of the Tranche B-1 Loans, Tranche B-2 Loans, and Tranche B-3 Loans, by $188.3 million, $124.7 million and $122.0 million, respectively. In conjunction with the prepayment of debt, we recorded a charge of $2.0 million in connection with the write-off of unamortized issuance costs, which is recorded within Loss on extinguishment of debt in our consolidated statement of operations at December 31, 2021. During the fourth quarter of 2021, the Company voluntarily paid down our term loan facility in the amount of $100.0 million. The debt pay-down reduced outstanding amounts of the Tranche B-1 Loans, Tranche B-2 Loans, and Tranche B-3 Loans, by $43.3 million, $28.7 million and $28.0 million, respectively. In conjunction with the prepayment of debt, we recorded a charge of $0.3 million in connection with the write-off of unamortized issuance costs, which is recorded within Loss on extinguishment of debt in our consolidated statement of operations at December 31, 2021. Receivable Sales Programs We have several international programs to sell without recourse trade accounts receivable to financial institutions. During the third quarter of 2020, these programs were amended to include a domestic program. These transactions are treated as a sale and are accounted for as a reduction in accounts receivable because the agreements transfer effective control over and risk related to the receivables to the buyers. The Company continues to service the receivables sold in exchange for a fee. The servicing fee for the years ended December 31, 2021, 2020 and 2019, were immaterial. The program, whose maximum capacity is €85 million, is scheduled to expire on December 31, 2023. Generally, at the transfer date, the Company receives cash equal to approximately 81% of the value of the sold receivable. Cash proceeds at the transfer date from these arrangements are reflected in operating activities in our consolidated statement of cash flows. The proceeds from the deferred purchase price are reflected in investing activities. The outstanding principal amount of receivables sold under this program, which has not yet been collected from the customer, was $44.4 million at December 31, 2021 and $24.5 million at December 31, 2020. The carrying amount of the deferred purchase was $7.7 million at December 31, 2021 and $9.8 million at December 31, 2020 and is recorded in Other receivables. Trade accounts receivable collected from customers to be remitted to financial institutions was $44.5 million at December 31, 2021 and $36.0 million at December 31, 2020 and recorded in Accrued expenses and other current liabilities. (Dollars in thousands) 2021 2020 Trade accounts receivable sold to financial institutions $ 618,646 $ 340,516 Cash proceeds from financial institutions (1) 499,635 241,937 (1) Excluded from the table above, in 2020, our Tile Coatings business received cash proceeds from financial institutions of $47.3 million. Refer to Note 4 for additional discussion of the Tile Coatings business and its classification as discontinued operations. Other Financing Arrangements

Financial Instruments

Financial Instruments	12 Months Ended
	Dec. 31, 2021
Investments, All Other Investments [Abstract]
Financial Instruments	Financial Instruments The following financial instrument assets (liabilities) are presented at their respective carrying amount, fair value and classification within the fair value hierarchy: December 31, 2021 Carrying Fair Value (Dollars in thousands) Total Level 1 Level 2 Level 3 Cash and cash equivalents $ 71,493 $ 71,493 $ 71,493 $ — $ — Term loan facility - Amended Credit Facility (1) (253,450) (252,815) — (252,815) — Other long-term notes payable (4,327) (2,681) — (2,681) — Cross-currency swaps 765 765 — 765 — Interest rate swaps (4,206) (4,206) — (4,206) — Foreign currency forward contracts, net (1,367) (1,367) — (1,367) — December 31, 2020 Carrying Fair Value (Dollars in thousands) Total Level 1 Level 2 Level 3 Cash and cash equivalents $ 174,077 $ 174,077 $ 174,077 $ — $ — Term loan facility - Credit Facility (1) (793,731) (783,143) — (783,143) — Other long-term notes payable (3,706) (1,887) — (1,887) — Cross-currency swaps (5,162) (5,162) — (5,162) — Interest rate swaps (24,694) (24,694) — (24,694) — Foreign currency forward contracts, net 2,019 2,019 — 2,019 — (1) The carrying value of the term loan facility is net of unamortized debt issuance costs of $0.8 million and $3.7 million for the period ended December 31, 2021, and December 31, 2020, respectively. The fair values of cash and cash equivalents are based on the fair values of identical assets. The fair values of loans payable are based on the present value of expected future cash flows and approximate their carrying amounts due to the short periods to maturity. The fair value of the term loan facility is based on market price information and is measured using the last available bid price of the instrument on a secondary market. The fair value of the revolving credit facility and other long-term notes payable are based on the present value of expected future cash flows and interest rates that would be currently available to the Company for issuance of similar types of debt instruments with similar terms and remaining maturities adjusted for the Company's performance risk. The fair values of our interest rate swaps and cross-currency swaps are determined based on inputs that are readily available in public markets or can be derived from information available in publicly quoted markets. The fair values of the foreign currency forward contracts are based on market prices for comparable contracts. Derivative Instruments The Company may use derivative instruments to partially offset its business exposure to foreign currency and interest rate risk on expected future cash flows, on net investment in certain foreign subsidiaries and on certain existing assets and liabilities. However, the Company may choose not to hedge in countries where it is not economically feasible to enter into hedging arrangements or where hedging inefficiencies exist, such as timing of transactions. Derivatives Designated as Hedging Instruments Cash Flow Hedges. For derivative instruments that are designated and qualify as cash flow hedges, the gain or loss on the derivative is recorded as a component of Accumulated other comprehensive loss ("AOCL") and reclassified into earnings in the same period during which the hedged transaction affects earnings. The Company utilizes interest rate swaps to limit exposure to market fluctuations on floating-rate debt. During the second quarter of 2018, the Company entered into variable to fixed interest rate swaps with a maturity date of February 14, 2024. These swaps are hedging risk associated with the Tranche B-1, B-2 and B-3 Loans. These interest rate swaps are designated as cash flow hedges. In conjunction with the 2021 fourth quarter pay-down of debt discussed in Note 8, the interest rate swaps were partially terminated in November 2021 when $50.0 million of the term loan facility was paid-off and then another partial termination occurred in December 2021 when $50.0 million of the term loan facility was paid-off. The Company has firm plans to pay-off an additional $50.0 million of debt in January 2022 and to terminate the remainder of the interest rate swaps. In November 2021, the majority of one of the Company's interest rate swaps was de-designated as a result of the debt repayment made and anticipated. The $5.7 million loss on the portion of the derivative de-designated was reclassified from AOCL to Interest expense in November 2021 when the underlying hedged interest payments were deemed remote. The Company paid counterparties $5.4 million to terminate one-third of each of the two interest rate swaps in November and $5.3 million to terminate an additional one-third in December. During the fourth quarter of 2021, the Company recognized an additional $0.3 million in Interest expense on the portion of interest rates swaps de-designated, but not yet terminated. After these terminations the remaining notional amount of the derivatives is $102.7 million at December 31, 2021, with a maturity date of February 14, 2024. As of December 31, 2021, the Company expects it will reclassify net losses of approximately $4.3 million, currently recorded in AOCL, into interest expense in earnings within the next twelve months. However, the actual amount reclassified could vary due to future changes in the fair value of these derivatives. The Company has converted a U.S. dollar denominated, variable rate debt obligation into a Euro fixed rate obligation using receive-float, pay-fixed cross-currency swaps in the second quarter of 2018. These swaps are hedging currency and interest rate risk associated with the Tranche B-3 Loan. These cross-currency swaps are designated as cash flow hedges. In conjunction with the pay-down of debt on February 25, 2021 discussed in Note 8, we terminated all cross-currency swaps, except for one, which we de-designated and re-designated to hedge the remaining Tranche B-3 Loan after the interest rate swaps. Due to the original designation layering, the other comprehensive loss from the cross-currency swap at re-designation and the other comprehensive loss from the terminated cross-currency swaps were written-off as the interest payments were deemed remote. The Company paid counterparties $3.5 million to settle the terminated derivatives, resulting in a net $4.5 million being reclassified from AOCL to Interest expense as a result of this remote transaction. In conjunction with the 2021 fourth quarter pay-down of debt discussed in Note 8, the remaining cross-currency swap was partially terminated in November 2021 when $50.0 million of the term loan facility was paid-off and then another partial termination occurred in December 2021 when $50.0 million of the term loan facility was paid-off. At the time of the first termination in November 2021, the swap was fully de-designated as a result of the debt repayments made and anticipated. The loss on the cross-currency swaps recorded in AOCL of $0.9 million was reclassified to Interest expense. The Company received $1.6 million from the counterparty to settle the terminated portion of the derivative, which was recorded to Interest expense. During the fourth quarter of 2021, the Company recognized a loss of $0.1 million in Interest expense on the portion of the cross-currency swap de-designated, but not yet terminated. After these terminations the remaining notional amount of the derivative is $12.8 million at December 31, 2021, with a maturity date of February 14, 2024. The amount of gain (loss) recognized in AOCL and the amount of loss (gain) reclassified into earnings for the year ended December 31, 2021 and 2020, follow: Amount of Gain (Loss) Amount of (Gain) Loss Reclassified from Location of Gain (Loss) (Dollars in thousands) 2021 2020 2021 2020 Interest rate swaps $ 2,490 $ (16,274) $ (7,864) $ (4,757) Interest expense Cross-currency swaps 4,157 (18,415) (286) 2,137 Interest expense $ (8,150) $ (2,620) Total Interest expense Cross-currency swaps 4,387 (19,845) Foreign currency losses (gains), net $ 4,387 $ (19,845) Total Foreign currency losses (gains), net The total amounts of expense and the respective line items in which the effect of cash flow hedges is presented in the condensed consolidated statement of operations for the year ended December 31, 2021 and 2020, are as follows: (Dollars in thousands) 2021 2020 Interest expense $ 28,166 $ 21,880 Foreign currency losses, net 5,480 3,627 Net Investment Hedge. For derivatives that are designated and qualify as net investment hedges, the gain or loss on the derivative is reported as a component of the currency translation adjustment in AOCL. These cross-currency swaps are designated as hedges of our net investment in European operations. Time value is excluded from the assessment of effectiveness and the amount of interest paid or received on the swaps will be recognized as an adjustment to interest expense in earnings over the life of the swaps. In the second quarter of 2018, the Company entered into cross-currency swap agreements where we pay variable rate interest in Euros and receive variable rate interest in U.S. dollars. This net investment hedge was terminated in the fourth quarter of 2020. These swaps were hedging risk associated with the net investment in Euro denominated operations due to fluctuating exchange rates and are designated as net investment hedges. The changes in the fair value of these designated cross-currency swaps were recognized in AOCL. The amount of gain (loss) on net investment hedges recognized in AOCL and the amount of gain recognized in income on derivative (amount excluded from effectiveness testing) for the year ended December 31, 2021 and 2020, follow: Amount of Gain (Loss) Amount of Gain Location of Gain (Dollars in thousands) 2021 2020 2021 2020 Cross-currency swaps $ — $ (7,655) $ — $ 1,468 Interest expense Derivatives Not Designated as Hedging Instruments Cash Flow Hedges. The Company utilizes interest rate swaps to limit exposure to market fluctuations on floating-rate debt. In conjunction with the 2021 fourth quarter pay-down of debt discussed above in Note 9, the majority of one of the Company's interest rate swaps was de-designated. We incurred a loss of $0.3 million in 2021, arising from the change in the fair value of the portion of the interest rate swap not designated. The Company uses a cross-currency swap to hedge currency and interest rate risk associated with the Tranche B-3 Loan. In conjunction with the 2021 fourth quarter pay-down of debt discussed above in Note 9, we fully de-designated the remaining cross-currency swap. We incurred a gain of $0.1 million in 2021, arising from the change in the fair value of the cross-currency swap. Foreign Currency Forward Contracts. We manage foreign currency risks principally by entering into forward contracts to mitigate the impact of currency fluctuations on transactions. These forward contracts are not formally designated as hedges. Gains and losses on these foreign currency forward contracts are netted with gains and losses from currency fluctuations on transactions arising from international trade and reported as Foreign currency losses (gains), net in the consolidated statements of operations. We recognized net losses of $5.5 million in 2021, net gains of $6.6 million in 2020 and net losses of $2.5 million in 2019, respectively, arising from the change in fair value of our financial instruments, which partially offset the related net gains and losses on international trade transactions. The notional amount of foreign currency forward contracts was $319.9 million and $494.2 million at December 31, 2021 and 2020, respectively. The following table presents the effect on our consolidated statements of operations for the years ended December 31, 2021, 2020 and 2019, respectively, of derivatives not designated as hedging instruments: Amount of Gain (Loss) Location of Gain (Loss) in Earnings (Dollars in thousands) 2021 2020 2019 Interest rate swaps $ (262) $ — $ — Interest expense Cross-currency swaps 120 — — Interest expense Foreign currency forward contracts (5,523) 6,589 (2,462) Foreign currency losses (gains), net Location and Fair Value Amount of Derivative Instruments The following table presents the fair values of our derivative instruments on our consolidated balance sheets. All derivatives are reported on a gross basis. (Dollars in thousands) 2021 2020 Balance Sheet Location Asset derivatives: Cross-currency swaps $ 62 $ 9 Other current assets Cross-currency swaps 703 — Other non-current assets Foreign currency forward contracts 205 2,649 Other current assets Liability derivatives: Interest rate swaps $ (2,442) $ (8,436) Accrued expenses and other current liabilities Interest rate swaps (1,764) (16,258) Other non-current liabilities Cross-currency swaps — (67) Accrued expenses and other current liabilities Cross-currency swaps — (5,104) Other non-current liabilities Foreign currency forward contracts (1,572) (630) Accrued expenses and other current liabilities

Income Taxes

Income Taxes	12 Months Ended
	Dec. 31, 2021
Income Tax Disclosure [Abstract]
Income Taxes	Income Taxes Income tax expense (benefit) is based on our earnings from continuing operations before income taxes as presented in the following table: (Dollars in thousands) 2021 2020 2019 U.S. $ 10,389 $ 7,961 $ 18,709 Foreign 102,168 36,940 24,082 Total $ 112,557 $ 44,901 $ 42,791 Our income tax expense (benefit) from continuing operations consists of the following components: (Dollars in thousands) 2021 2020 2019 Current: U.S. federal $ 5,902 $ (3,298) $ 475 Foreign 25,794 20,238 18,204 State and local 23 104 168 Total current 31,719 17,044 18,847 Deferred: U.S. federal 4,229 3,935 (3,832) Foreign 2,280 (6,856) (8,340) State and local 987 738 1,290 Total deferred 7,496 (2,183) (10,882) Total income tax expense (benefit) $ 39,215 $ 14,861 $ 7,965 In addition, income tax expense (benefit) that we allocated directly to Ferro Corporation shareholders’ equity is detailed in the following table: (Dollars in thousands) 2021 2020 2019 Interest rate swaps $ 5,306 $ (2,848) $ (3,210) Postretirement benefit liability adjustments 6 153 11 Net investment hedge — (2,113) 654 Foreign currency translations 17 44 27 Total income tax expense (benefit) allocated to Ferro Corporation shareholders' equity $ 5,329 $ (4,764) $ (2,518) A reconciliation of the U.S. federal statutory income tax rate and our effective tax rate follows: 2021 2020 2019 U.S. federal statutory income tax rate 21.0 % 21.0 % 21.0 % Foreign tax rate difference 7.7 7.2 9.8 Foreign withholding taxes 4.2 0.7 1.3 Foreign currency 1.7 4.1 1.4 Non-deductible expenses 1.5 4.5 4.4 Tax rate changes 1.0 1.1 0.9 Global intangible low-taxed income, net 0.8 2.5 2.8 State taxes 0.8 1.0 1.3 Net adjustment of prior year accrual 0.5 1.3 (5.0) Adjustment of valuation allowances 0.5 (0.9) (16.1) Goodwill dispositions, impairments and amortization (0.1) — (1.2) Foreign derived intangible income deduction (0.6) (0.7) (3.2) Tax credits (1.2) (4.4) (3.2) Other (1.3) (1.7) 2.7 Uncertain tax positions, net of tax audit settlements (1.7) (2.6) 1.7 Effective tax rate 34.8 % 33.1 % 18.6 % We operate in a number of jurisdictions and are subject to income tax in each tax jurisdiction in which we operate. We are also subject to U.S. taxation of global intangible-low taxed income (“GILTI”) earned by our foreign subsidiaries. Our calculation of foreign income subject to GILTI is complex, requiring significant inputs of data, and judgment, to determine the foreign income subject to GILTI. The complexity of our GILTI tax calculation increased in the current year due to the February 2021 sale of our Tile Coatings business. We have refundable income taxes of $7.9 million at December 31, 2021 and $9.5 million at December 31, 2020, classified as Other receivables on our consolidated balance sheets. We also have income taxes payable of $18.3 million at December 31, 2021, and $16.0 million at December 31, 2020, classified as Accrued expenses and other current liabilities on our consolidated balance sheets. The components of deferred tax assets and liabilities at December 31, 2021 and 2020 were: (Dollars in thousands) 2021 2020 Deferred tax assets: Foreign operating loss carryforwards $ 30,771 $ 36,631 Pension and other benefit programs 28,878 41,968 Foreign tax credit carryforwards 16,782 12,306 Accrued liabilities 12,792 12,883 Disallowed interest 10,025 7,692 Other 7,728 7,217 Other credit carryforwards 7,712 8,639 Inventories 3,605 2,879 State and local operating loss carryforwards 2,709 1,900 Currency differences 1,674 5,605 Allowance for doubtful accounts 280 589 Total deferred tax assets 122,956 138,309 Deferred tax liabilities: Property, plant and equipment and intangibles - depreciation and amortization 20,835 16,024 Unremitted earnings of foreign subsidiaries 2,110 1,903 Deferred gain — 2,351 Other — 2,030 Total deferred tax liabilities 22,945 22,308 Net deferred tax assets before valuation allowance 100,011 116,001 Valuation allowance (13,486) (10,872) Net deferred tax assets $ 86,525 $ 105,129 The amounts of foreign operating loss carryforwards, foreign tax credit carryforwards, and other credit carryforwards included in the table of temporary differences are net of reserves for unrecognized tax benefits. At December 31, 2021, we had $43.0 million of state and local operating loss carryforwards and $147.2 million of foreign operating loss carryforwards, which can be carried forward indefinitely and others expire in 1 to 20 years. At December 31, 2021, we had $26.7 million in tax credit carryforwards, some of which can be carried forward indefinitely. These operating loss carryforwards and tax credit carryforwards expire as follows: (Dollars in thousands) Operating Loss Tax Credit Expiring in: 2022 $ 412 $ 2,897 2023-2027 31,519 15,917 2028-2032 10,239 3,260 2033-2037 10,569 3,063 2038-2042 9,892 815 2043-Indefinitely 127,517 726 Total $ 190,148 $ 26,678 We assess the available positive and negative evidence to determine if sufficient future taxable income will be generated to utilize the existing deferred tax assets. A significant piece of objective negative evidence evaluated by jurisdiction was whether a cumulative loss over the three-year period ended December 31, 2021 had been incurred. Such objective evidence limits the ability to consider other subjective evidence such as our projections for future income. Based on this assessment as of December 31, 2021, the Company has recorded a valuation allowance of $13.5 million in order to measure only the portion of the deferred tax assets that more likely than not will be realized. We classified net deferred income tax assets as of December 31, 2021 and 2020 as detailed in the following table: (Dollars in thousands) 2021 2020 Non-current assets $ 98,199 $ 115,962 Non-current liabilities (11,674) (10,833) Net deferred tax assets $ 86,525 $ 105,129 Activity and balances of unrecognized tax benefits are summarized below: (Dollars in thousands) 2021 2020 2019 Balance at beginning of year $ 22,483 $ 26,000 $ 24,869 Additions based on tax positions related to the current year — 153 3,425 Additions for tax positions of prior years — 260 — Reductions for tax positions of prior years (6,061) (3,781) — Reductions as a results of expiring statutes of limitations (5,218) (1,394) (688) Foreign currency adjustments (419) 1,245 (660) Settlements with taxing authorities — — (946) Balance at end of year $ 10,785 $ 22,483 $ 26,000 The total amount of unrecognized tax benefits that, if recognized, would affect the effective rate was $2.1 million at December 31, 2021, $8.5 million at December 31, 2020, and $8.7 million at December 31, 2019. The Company recognizes accrued interest and penalties related to unrecognized tax benefits as part of income tax expense. The Company recognized $0.4 million of expense in 2021, $0.6 million of expense in 2020, and $0.5 million of expense in 2019 for interest, net of tax, and related penalties. The Company accrued $0.8 million at December 31, 2021, $2.9 million at December 31, 2020, and $2.9 million at December 31, 2019 for payment of interest, net of tax, and penalties. We anticipate that $1.8 million of liabilities for unrecognized tax benefits, including accrued interest and penalties, may be reversed within the next 12 months. These liabilities relate to international tax issues and are expected to reverse due to the expiration of the applicable statute of limitations periods and the anticipation of the closure of tax examinations. The Company conducts business globally, and, as a result, the U.S. parent company or one of its subsidiaries files income tax returns in the U.S. federal jurisdiction and various state and foreign jurisdictions. In the normal course of business, the U.S. parent company and its subsidiaries are subject to examination by taxing authorities. With few exceptions, we are not subject to federal, state, local or non-U.S. income tax examinations for years before 2006. At December 31, 2021, we provided $2.1 million for deferred income taxes on $15.4 million of undistributed earnings of foreign subsidiaries that are not considered to be indefinitely reinvested. For certain other of the Company’s foreign subsidiaries, undistributed earnings of approximately $265.5 million are considered to be indefinitely reinvested, and we have not provided for deferred taxes on such earnings. We have not disclosed deferred income taxes on undistributed earnings of foreign subsidiaries where they are considered to be indefinitely reinvested, as it is not practicable to estimate the additional taxes that might be payable on the eventual remittance of such earnings, given the uncertain timing of when any such eventual remittance may occur, the significant number of foreign subsidiaries we have, the multiple layers within our legal entity structure, and the complexities of tax regulations across those foreign subsidiaries.

Contingent Liabilities

Contingent Liabilities	12 Months Ended
	Dec. 31, 2021
Commitments and Contingencies Disclosure [Abstract]
Contingent Liabilities	Contingent LiabilitiesThe Company had bank guarantees and standby letters of credit issued by financial institutions that totaled $4.5 million at December 31, 2021 and $5.1 million at December 31, 2020. These agreements primarily relate to Ferro’s insurance programs, foreign energy purchase contracts and foreign tax payments. If the Company fails to perform its obligations, the guarantees and letters of credit may be drawn down by their holders, and we would be liable to the financial institutions for the amounts drawn. We have recorded environmental liabilities of $9.0 million at December 31, 2021 and $5.7 million at December 31, 2020 for costs associated with the remediation of certain of our current or former properties that have been contaminated. The balances at December 31, 2021 and December 31, 2020 were primarily comprised of liabilities related to a non-operating facility in Brazil, as well as for retained environmental obligations related to a site in the United States that was part of the sale of our North American and Asian metal powders product lines in 2013 and, with respect to the December 31, 2021 balance, also related to a site in the United States that was part of the sale of our Fine Chemicals business in 2008. These costs include, but are not limited to, legal and consulting fees, site studies, the design and implementation of remediation plans, post-remediation monitoring, and related activities. The ultimate liability could be affected by numerous uncertainties, including the extent of contamination found, the required period of monitoring, the ultimate cost of required remediation and other circumstances. In November 2017, Suffolk County Water Authority filed a complaint, Suffolk County Water Authority v. The Dow Chemical Company et al., against the Company and a number of other companies in the U.S. Federal Court for the Eastern District of New York with regard to the product 1,4 dioxane. The plaintiff alleges, among other things, that the Suffolk County water supply is contaminated with 1,4 dioxane and that the defendants are liable for unspecified costs of cleanup and remediation of the water supply, among other damages. The Company has not manufactured 1,4 dioxane since 2008, denies the allegations related to liability for the plaintiff’s claims, and is vigorously defending this proceeding. Since December 2019, additional complaints were filed in the same court by 25 other New York municipal water suppliers and in New York State Supreme Court by one water supplier against the Company and others making substantially similar allegations regarding the contamination of their respective water supplies with 1,4 dioxane. The Company is likewise vigorously defending these additional actions. The Company currently does not expect the outcome of these proceedings to have a material adverse impact on its consolidated financial condition, results of operations, or cash flows, net of any insurance coverage. However, it is not possible to predict the ultimate outcome of these proceedings due to the unpredictable nature of litigation. In addition to the proceedings described above, the Company and its consolidated subsidiaries are subject from time to time to various claims, lawsuits, investigations, and proceedings related to products, services, contracts, environmental, health and safety, employment, intellectual property, and other matters, including with respect to divested businesses. The outcome of such matters is unpredictable, our assessment of them may change, and resolution of them could have a material adverse effect on the Company’s consolidated financial position, results of operations, or cash flows. We do not currently expect the resolution of such matters to materially affect the consolidated financial position, results of operations, or cash flows of the Company.

Retirement Benefits

Retirement Benefits	12 Months Ended
	Dec. 31, 2021
Retirement Benefits [Abstract]
Retirement Benefits	Retirement Benefits Defined Benefit Pension Plans U.S. Pension Plans Non-U.S. Plans (Dollars in thousands) 2021 2020 2019 2021 2020 2019 Service cost $ 1 $ 10 $ 10 $ 1,389 $ 1,555 $ 1,410 Interest cost 7,521 9,479 11,787 1,387 1,788 2,264 Expected return on plan assets (15,248) (14,782) (12,622) (473) (601) (758) Amortization of prior service cost — — — (72) 13 7 Mark-to-market actuarial net (gains) losses (18,200) 10,938 1,228 (7,113) 2,977 11,033 Curtailment and settlement effects (gains) losses — — — 53 66 292 Special termination benefits — 114 — 1 26 — Net periodic benefit cost (credit) $ (25,926) $ 5,759 $ 403 $ (4,828) $ 5,824 $ 14,248 Weighted-average assumptions: Discount rate 2.55 % 3.35 % 4.40 % 1.14 % 1.76 % 2.61 % Rate of compensation increase N/A N/A N/A 2.85 % 3.11 % 3.19 % Expected return on plan assets 7.48 % 7.70 % 7.70 % 1.55 % 2.04 % 2.74 % For the majority of our U.S. defined benefit pension plans, the participants stopped accruing benefit service costs on or before January 1, 2011. In 2021, the mark-to-market actuarial net gain on the U.S. pension plans of $18.2 million consisted of a gain of $10.0 million from actual returns on plan assets exceeding expected return and a gain of $8.4 million to remeasure the liability based on a higher discount rate compared with the prior year, partially offset by a $0.2 million loss on demographic experience and actuarial assumptions. The mark-to-market actuarial net gain of $7.1 million for non-U.S. plans primarily consisted of a gain of $3.8 million to remeasure the liability based on a higher discount rate compared with the prior year and a $3.5 million gain on demographic experience and actuarial assumptions. In 2020, the mark-to-market actuarial net loss on the U.S. pension plans of $10.9 million consisted of a charge of $23.0 million to remeasure the liability based on a lower discount rate compared with the prior year, partially offset by a gain of $10.7 million from actual returns on plan assets exceeding expected returns and a $1.4 million gain on demographic experience and actuarial assumptions. The mark-to-market actuarial net loss of $3.0 million for non-U.S. plans primarily consisted of a charge of $5.9 million to remeasure the liability based on a lower discount rate compared with the prior year, partially offset by a $2.1 million gain on demographic experience and actuarial assumptions. In 2019, the mark-to-market actuarial net loss on the U.S. pension plans of $1.2 million consisted of a charge of $28.3 million to remeasure the liability based on a lower discount rate compared with the prior year, partially offset by a gain of $23.3 million from actual returns on plan assets exceeding expected returns and a $3.8 million gain on demographic experience and actuarial assumptions. The mark-to-market actuarial net loss of $11.0 million for non-U.S. plans was primarily driven by remeasurement of the respective liabilities at lower discount rates. U.S. Pension Plans Non-U.S. Pension Plans (Dollars in thousands) 2021 2020 2021 2020 Change in benefit obligation Benefit obligation at beginning of year $ 306,310 $ 296,181 $ 130,132 $ 116,698 Service cost 1 10 1,389 1,555 Interest cost 7,521 9,479 1,387 1,788 Curtailments — — — — Amendments — — (131) (714) Settlements — — (132) (835) Special termination benefits — 114 1 26 Plan participants' contributions — — — — Benefits paid (21,424) (21,119) (2,463) (3,145) Actuarial (gain) loss (8,154) 21,645 (8,654) 4,907 Exchange rate effect — — (8,938) 9,852 Benefit obligation at end of year $ 284,253 $ 306,310 $ 112,591 $ 130,132 Accumulated benefit obligation at end of year $ 284,253 $ 306,310 $ 105,155 $ 119,914 Change in plan assets: Fair value of plan assets at beginning of year $ 229,245 $ 223,227 $ 37,587 $ 33,898 Actual return on plan assets 25,294 25,489 (1,121) 2,465 Employer contributions 10,693 1,648 1,452 2,363 Plan participants' contributions — — — — Benefits paid (21,424) (21,119) (2,463) (3,145) Effect of settlements — — (132) (835) Exchange rate effect — — (2,544) 2,841 Fair value of plan assets at end of year $ 243,808 $ 229,245 $ 32,780 $ 37,587 Amounts recognized in the balance sheet: Other non-current assets $ — $ — $ 283 $ 59 Accrued expenses and other current liabilities (581) (389) (2,712) (2,575) Postretirement and pension liabilities (39,864) (76,676) (77,382) (90,029) Funded status $ (40,445) $ (77,065) $ (79,811) $ (92,545) U.S. Pension Plans Non-U.S. Pension Plans (Dollars in thousands) 2021 2020 2021 2020 Weighted-average assumptions as of December 31: Discount rate 2.85 % 2.55 % 1.43 % 1.29 % Rate of compensation increase N/A N/A 2.86 % 2.98 % Pension plans with benefit obligations in excess of plan assets: Benefit obligations $ 284,253 $ 306,310 $ 81,952 $ 94,567 Plan assets 243,808 229,245 1,858 1,963 Pension plans with accumulated benefit obligations in excess of plan assets: Projected benefit obligations $ 284,253 $ 306,310 $ 80,897 $ 94,057 Accumulated benefit obligations 284,253 306,310 73,540 83,923 Plan assets 243,808 229,245 803 1,518 Activity and balances in Accumulated other comprehensive loss related to defined benefit pension plans are summarized below: U.S. Pension Plans Non-U.S. Pension Plans (Dollars in thousands) 2021 2020 2021 2020 Prior service (cost): Balance at beginning of year $ — $ — $ (672) $ (44) Amounts recognized as net periodic benefit costs — — 72 (13) Plan amendments — — (131) (604) Exchange rate effects — — 33 (11) Balance at end of year $ — $ — $ (698) $ (672) The overall investment objective for our defined benefit pension plan assets is to achieve the highest level of investment return that is compatible with prudent investment practices, asset class risk and current and future benefit obligations of the plans. Based on the potential risks and expected returns of various asset classes, the Company establishes asset allocation ranges for major asset classes. For U.S. plans, the target allocations are 35% fixed income, 60% equity, and 5% other investments. Non-U.S. plan allocations are primarily comprised of fixed income securities. The Company invests in funds and with asset managers that track broad investment indices. The equity funds generally capture the returns of the equity markets in the U.S., Europe, and Asia Pacific and also reflect various investment styles, such as growth, value, and large or small capitalization. The fixed income funds generally capture the returns of government and investment-grade corporate fixed income securities in the U.S. and Europe and also reflect various durations of these securities. We derive our assumption for expected return on plan assets at the beginning of the year based on the weighted-average expected return for the target asset allocations of the major asset classes held by each plan. In determining the expected return, the Company considers both historical performance and an estimate of future long-term rates of return. The Company consults with, and considers the opinion of, its actuaries in developing appropriate return assumptions. The fair values of our pension plan assets at December 31, 2021, by asset category are as follows: (Dollars in thousands) Level 1 Level 2 Level 3 Total U.S. plans: Fixed income: Guaranteed deposits $ — $ 1,602 $ — $ 1,602 Mutual funds 79,837 — — 79,837 Commingled funds — 365 156 521 Equities: U.S. common stocks 6,180 — — 6,180 Mutual funds 138,692 — — 138,692 Commingled funds — 533 — 533 Total assets in the fair value hierarchy 224,709 2,500 156 227,365 Investments measured at net asset value — — — 16,443 Investments at fair value $ 224,709 $ 2,500 $ 156 $ 243,808 Non-U.S. plans Fixed income: Cash and cash equivalents $ 102 $ — $ — $ 102 Guaranteed deposits — 744 29,578 30,322 Mutual funds 1,417 661 — 2,078 Other 84 — — 84 Equities: Mutual funds 194 — — 194 Total $ 1,797 $ 1,405 $ 29,578 $ 32,780 The fair values of our pension plan assets at December 31, 2020, by asset category are as follows: (Dollars in thousands) Level 1 Level 2 Level 3 Total U.S. plans: Fixed income: Guaranteed deposits $ — $ 1,699 $ — $ 1,699 Mutual funds 72,424 — — 72,424 Commingled funds — 423 182 605 Equities: U.S. common stocks 4,142 — — 4,142 Mutual funds 135,791 — — 135,791 Commingled funds — 628 — 628 Total assets in the fair value hierarchy 212,357 2,750 182 215,289 Investments measured at net asset value — — — 13,956 Investments at fair value $ 212,357 $ 2,750 $ 182 $ 229,245 Non-U.S. plans Fixed income: Cash and cash equivalents $ 183 $ — $ — $ 183 Guaranteed deposits — 782 33,733 34,515 Mutual funds 1,519 1,093 — 2,612 Other 84 — — 84 Equities: Mutual funds 193 — — 193 Total $ 1,979 $ 1,875 $ 33,733 $ 37,587 The Company’s U.S. pension pla ns held 0.3 million shares of the Company’s common stock with a market value of $6.2 million at December 31, 2021 and 0.3 million shar es with a market value of $4.1 million at December 31, 2020. Level 3 assets consist primarily of guaranteed deposits. The guaranteed deposits in Level 3 are in the form of contracts with insurance companies that secure the payment of benefits and are valued based on discounted cash flow models using the same discount rate used to value the related plan liabilities. The investments measured at net investment value, which is a practical expedient to estimating fair value, seek both current income and long term capital appreciation through investing in underlying funds that acquire, manage, and dispose of commercial real estate properties. A rollforward of Level 3 assets is presented below. Unrealized losses included in earnings wer e $1.2 million in 2021 and unrealized gains included in earnings were $4.1 million in 2020. (Dollars in thousands) Guaranteed Commingled Total Balance at December 31, 2019 $ 30,155 $ 244 $ 30,399 Sales (616) — (616) Gains (losses) included in earnings 4,194 (62) 4,132 Exchange rate effect — — — Balance at December 31, 2020 33,733 182 33,915 Sales (669) — (669) Gains (losses) included in earnings (1,140) (26) (1,166) Exchange rate effect (2,346) — (2,346) Balance at December 31, 2021 $ 29,578 $ 156 $ 29,734 We expect to contribute ap proximately $0.6 million to our U.S. pension plans and $2.5 million to our non-U.S. pension plans in 2022. We estimate that future pension benefit payments, will be as follows: (Dollars in thousands) U.S. Non-U.S. 2022 $ 20,501 $ 3,975 2023 20,170 4,678 2024 19,914 3,672 2025 19,794 3,905 2026 19,204 4,365 2027-2031 90,225 22,984 Postretirement Health Care and Life Insurance Benefit Plans (Dollars in thousands) 2021 2020 2019 Net periodic benefit cost: Interest expense $ 272 $ 529 $ 702 Service cost — 3 2 Amortization of prior service costs (4) (4,240) — Mark-to-market actuarial net loss (gain) (606) 101 1,080 Total net periodic benefit cost (credit) $ (338) $ (3,607) $ 1,784 Weighted-average assumptions: Discount rate 2.40 % 3.25 % 4.30 % Current trend rate for health care costs 6.00 % 6.10 % 6.30 % Ultimate trend rate for health care costs 4.50 % 4.50 % 4.50 % Year that ultimate trend rate is reached 2036 2036 2036 (Dollars in thousands) 2021 2020 Change in benefit obligation: Benefit obligation at beginning of year $ 11,854 $ 17,149 Service cost — 3 Interest cost 272 529 Plan amendments (4) (4,240) Benefits paid (1,529) (1,688) Actuarial loss (gain) (606) 101 Benefit obligation at end of year $ 9,987 $ 11,854 Change in plan assets: Fair value of plan assets at beginning of year $ — $ — Employer contributions 1,529 1,688 Benefits paid (1,529) (1,688) Fair value of plan assets at end of year $ — $ — Amounts recognized in the balance sheet: Accrued expenses and other current liabilities $ (892) $ (1,047) Postretirement and pension liabilities (9,095) (10,807) Funded status $ (9,987) $ (11,854) Weighted-average assumptions as of December 31: Discount rate 2.80 % 2.40 % Current trend rate for health care costs 5.40 % 6.00 % Ultimate trend rate for health care costs 4.00 % 4.50 % Year that ultimate trend rate is reached 2045 2036 The Medicare Prescription Drug, Improvement, and Modernization Act of 2003 provides subsidies for certain drug costs to companies that provide coverage that is actuarially equivalent to the drug coverage under Medicare Part D. We estimate that future postretirement health care and life insurance benefit payments will be as follows: (Dollars in thousands) Before After 2022 $ 892 $ 892 2023 850 850 2024 816 816 2025 775 775 2026 741 741 2027-2031 3,204 3,204 Other Retirement Plans We also have defined contribution retirement plans covering certain employees. Our contributions are determined by the terms of the plans and are limited to amounts that are deductible for income taxes. Generally, benefits under these plans vest over a period of five years from date of employment. The largest plan covers salaried and most hourly employees in the U.S. In this plan, the Company contributes a percentage of eligible employee basic compensation and also a percentage of employee contributions. The expense applicable to these plans was $4.4 million , $3.2 million, and $3.7 million in 2021, 2020, and 2019, respectively.

Stock-based Compensation

Stock-based Compensation	12 Months Ended
	Dec. 31, 2021
Share-based Payment Arrangement [Abstract]
Stock-based Compensation	Stock-based Compensation On May 3, 2018, our shareholders approved the 2018 Omnibus Incentive Plan (the “Plan”), which was adopted by the Board of Directors on February 22, 2018. The Plan’s purpose is to promote the Company’s long-term financial interests and growth by attracting, retaining and motivating high-quality key employees and directors, motivating such employees and directors to achieve the Company’s short- and long-range performance goals and objectives, and thereby align their interests with those of the Company’s shareholders. The Plan reserves 4,500,000 shares of common stock to be issued for grants of several different types of long-term incentives including stock options, stock appreciation rights, restricted awards, performance awards, other common stock-based awards, and dividend equivalent rights. The 2013 Omnibus Incentive Plan (the “Previous Plan”), was replaced by the Plan, and no future grants may be made under the Previous Plan. However, any outstanding awards or grants made under the Previous Plan will continue until the end of their specified terms. Stock options, performance share units, deferred stock units and restricted stock units were the only grant types outstanding at December 31, 2021. Stock options, performance share units, and restricted stock units are discussed below. Activities in other grant types were not significant. Stock Options General Information Stock options outstanding at December 31, 2021, have a term of 10 years, vest evenly over three years on the anniversary of the grant date, and have an exercise price equal to the per share fair market value of our common stock on the grant date. Accelerated vesting is used for options held by employees who meet both the age and years of service requirements to retire prior to the end of the vesting period. In the case of death or retirement, the stock options become 100% vested and exercisable. Stock Option Valuation Model and Method Information We estimate the fair value of each stock option on the date of grant using the Black-Scholes option pricing model. We use judgment in selecting assumptions for the model, which may significantly impact the timing and amount of compensation expense, and we base our judgments primarily on historical data. When appropriate, we adjust the historical data for circumstances that are not likely to occur in the future. The following table details the determination of the assumptions used to estimate the fair value of stock options: Assumption Estimation Method Expected life, in years Historical stock option exercise experience Risk-free interest rate Yield of U.S. Treasury Bonds with remaining maturity equal to expected life of the stock option Expected volatility Historical daily price observations of the Company’s common stock over a period equal to the expected life of the stock option Expected dividend yield Historical dividend rate at the date of grant The following table details the weighted-average grant-date fair values and the assumptions used for estimating the fair values of stock options granted in the respective years: 2021 2020 2019 Weighted-average grant-date fair value $ 5.94 $ 5.28 $ 6.47 Expected life, in years 6.0 5.2 5.6 Risk-free interest rate 0.8 % 1.4 % 2.5 % Expected volatility 40.4 % 35.1 % 33.9 % Expected dividend yield — % — % — % Stock Option Activity Information A summary of stock option activity follows: Number of Weighted- Weighted- Aggregate Intrinsic Value (1) Outstanding at December 31, 2020 1,933,899 $ 13.20 Granted 285,400 15.10 Exercised (1,035,434) 10.48 Forfeited or expired (38,433) 16.08 Outstanding at December 31, 2021 1,145,432 $ 16.03 7.4 $ 6,666 Exercisable at December 31, 2021 972,933 $ 16.16 7.2 $ 5,543 Vested or expected to vest at December 31, 2021 1,145,432 $ 16.03 7.4 $ 6,666 (1) Aggregate intrinsic value amounts shown in thousands. We calculated the aggregate intrinsic value in the table above by taking the total pretax difference between our common stock’s closing market value per share on the last trading day of the year and the stock option exercise price for each grant and multiplying that result by the number of shares that would have been received by the option holders had they exercised all their in-the-money stock options. Information related to stock options exercised follows: (Dollars in thousands) 2021 2020 2019 Proceeds from the exercise of stock options $ 11,575 $ 756 $ 1,052 Intrinsic value of stock options exercised 11,314 867 750 Income tax benefit related to stock options exercised 2,602 182 158 Stock Options Expense Information A summary of amounts recorded and to be recorded for stock-based compensation related to stock options follows: (Dollars in thousands) 2021 2020 2019 Compensation expense recorded in Selling, general and administrative expenses $ 1,851 $ 2,304 $ 1,801 Deferred income tax benefits related to compensation expense 426 484 378 Total fair value of stock options vested 1,812 465 1,387 Unrecognized compensation cost 1,908 2,039 1,469 Expected weighted-average recognition period for unrecognized compensation, in years 1.1 1.8 2.2 Performance Share Units General Information Performance share units, expressed as shares of the Company’s common stock, are earned only if the Company meets specific performance targets over a three three The Plan allows for payout of up to 200% of the vesting-date fair value of the awards. We pay half of the earned value in cash and half in unrestricted shares of common stock. The portion of the grants that will be paid in cash are treated as liability awards, and therefore, we remeasure our liability and the related compensation expense at each balance sheet date, based on fair value. We treat the portion of the grants that will be settled with common stock as equity awards, and therefore, the amount of stock-based compensation we record over the performance period is based on the fair value on the grant date. The compensation expense and number of shares expected to vest for all performance share units are adjusted each reporting period for the achievement of the performance share units’ performance metrics, based upon our best estimate using available information. Performance Share Unit Valuation Model and Method Information The estimated fair value of performance share units granted in 2021, 2020 and 2019 is based on the closing price of the Company’s common stock on the date of issuance and recorded based on achievement of target performance metrics. As of December 31, 2021, we had 0.2 million and 0.2 million performance share units outstanding associated with our 2021 and 2020 grants, respectively. The weighted average grant date fair value of our performance share units was $16.00 for shares granted in 2021, $14.64 for shares granted in 2020 and $17.61 for shares granted in 2019. All performance share units are initially expensed at target and are evaluated each reporting period for likelihood of achieving the performance metrics, and the expense is adjusted, as appropriate. Performance Share Unit Activity Information A summary of performance share unit activity follows: Number of Weighted- Outstanding at December 31, 2020 481,998 Granted 185,600 Earned (71,856) Forfeited or expired (53,144) Outstanding at December 31, 2021 542,598 1.0 Vested or expected to vest at December 31, 2021 542,598 1.0 Performance Share Unit Expense Information A summary of amounts recorded and to be recorded for stock-based compensation related to performance share units follows: (Dollars in thousands) 2021 2020 2019 Compensation expense recorded in Selling, general and administrative expenses $ 626 $ 3,270 $ 3,607 Deferred income tax benefits related to compensation expense 144 773 757 Unrecognized compensation cost 3,747 3,417 2,730 Expected weighted-average recognition period for unrecognized compensation, in years 1.5 1.5 1.6 Restricted Stock Units We granted 0.2 million, 0.2 million and 0.2 million restricted stock units in 2021, 2020, and 2019, respectively. Fair value of restricted stock units is determined based on the closing price of the Company’s common stock on the date of issuance. Restricted stock units are expressed as equivalent shares of the Company’s common stock, and have a three Directors’ Deferred Compensation Separate from the Plan, the Company has established the Ferro Corporation Deferred Compensation Plan for Non-employee Directors, permitting its non-employee directors to voluntarily defer all or a portion of their compensation. The voluntarily deferred amounts are placed in individual accounts in a benefit trust known as a “rabbi trust” and invested in the Company’s common stock with dividends reinvested in additional shares. All disbursements from the trust are made in the Company’s common stock. The stock held in the rabbi trust is classified as treasury stock in shareholders’ equity and the deferred compensation obligation that is required to be settled in shares of the Company’s common stock, is classified as paid-in capital. The rabbi trust held 0.1 million shares, valued at $1.4 million, at December 31, 2021, and 0.1 million shares, valued at $1.6 million, at December 31, 2020.

Restructuring and Cost Reductio

Restructuring and Cost Reduction Programs	12 Months Ended
	Dec. 31, 2021
Restructuring and Related Activities [Abstract]
Restructuring and Cost Reduction Programs	Restructuring and Cost Reduction Programs Our restructuring and cost reduction programs have been developed with the objective of realigning the business and lowering our cost structure. Total restructuring charges resulting from these activities were $14.4 million in 2021, $17.4 million in 2020, and $11.0 million in 2019, which are reported in Restructuring and impairment charges in our consolidated statement of operations. As discussed in Note 4, our Tile Coatings business was classified as held-for-sale. As such, the restructuring costs pertaining to the Tile Coatings business of $0.3 million in 2021, $2.3 million in 2020, and $1.9 million in 2019 are reported in Income (loss) from discontinued operations, net of taxes. Organizational Optimization Plan In conjunction with the pending sale of the Tile Coatings business, discussed in Note 4, we developed our Organizational Optimization Plan and initiated a program across the organization with the objective of realigning the business and lowering our cost structure in anticipation of the pending sale. The remaining activities of the program are expected to be recognized throughout 2022. Americas Manufacturing Optimization Plan In the second quarter of 2020, we developed our Americas Manufacturing Optimization Plan and initiated a program across the organization with the objective of realigning the business and lowering our cost structure. The Americas Manufacturing Optimization Plan is focused on the construction of a new manufacturing center of excellence located in Villagran, Mexico. The remaining activities of the program are expected to be recognized within the next 12 months. Global Optimization Plan The program involves our global operations and certain functions and initiatives to increase operational efficiencies, some of which is associated with integration of our acquisitions. Actions associated with the Global Optimization Plan were substantially completed during 2021, and as such, we do not anticipate further material charges related to this plan. The charges associated with these restructuring programs are summarized by major type below: (Dollars in thousands) Employee Other Costs Total Expected restructuring charges: Organizational Optimization Program $ 5,654 $ — $ 5,654 American Manufacturing Optimization Program — — — Global Optimization Program — — — Total expected restructuring charges $ 5,654 $ — $ 5,654 Restructuring charges incurred: Global Optimization Program $ 7,163 $ 3,792 $ 10,955 Charges incurred in 2019 $ 7,163 $ 3,792 $ 10,955 Organizational Optimization Program $ 2,980 $ — $ 2,980 American Manufacturing Optimization Program 1,040 — 1,040 Global Optimization Program 5,670 7,735 13,405 Charges incurred in 2020 $ 9,690 $ 7,735 $ 17,425 Organizational Optimization Program $ 6,834 $ — $ 6,834 American Manufacturing Optimization Program 3,637 — 3,637 Global Optimization Program — 3,939 3,939 Charges incurred in 2021 $ 10,471 $ 3,939 $ 14,410 Cumulative restructuring charges incurred: Organizational Optimization Program $ 9,814 $ — $ 9,814 American Manufacturing Optimization Program 4,677 — 4,677 Global Optimization Program 12,833 15,466 28,299 Cumulative restructuring charges incurred as of December 31, 2021 $ 27,324 $ 15,466 $ 42,790 The charges associated with the restructuring programs are summarized by segments below: (Dollars in thousands) Total 2021 2020 2019 Cumulative Functional Coatings $ 169 $ — $ 27 $ (5) $ 22 Color Solutions 99 106 101 124 331 Segment Total 268 106 128 119 353 Corporate Restructuring Charges 5,386 14,304 17,297 10,836 42,437 Total Restructuring Charges $ 5,654 $ 14,410 $ 17,425 $ 10,955 $ 42,790 The activities and accruals related to our optimization programs are below: (Dollars in thousands) Employee Other Costs Total Balance at December 31, 2018 $ 1,011 $ 832 $ 1,843 Restructuring charges 7,163 3,792 10,955 Cash payments (6,987) (1,831) (8,818) Non-cash items (440) (1,301) (1,741) Balance at December 31, 2019 747 1,492 2,239 Restructuring charges 9,690 7,735 17,425 Cash payments (4,363) (4,526) (8,889) Non-cash items (564) (241) (805) Balance at December 31, 2020 5,510 4,460 9,970 Restructuring charges 10,471 3,939 14,410 Cash payments (7,626) (2,628) (10,254) Non-cash items — (1,129) (1,129) Balance at December 31, 2021 $ 8,355 $ 4,642 $ 12,997 We expect to make cash payments to settle the remaining liability for employee severance benefits and other costs over the next twelve months, except where legal or contractual obligations would require it to extend beyond that period.

Leases

Leases	12 Months Ended
	Dec. 31, 2021
Leases [Abstract]
Leases	Leases The Company has leases for equipment, office space, plant sites and distribution centers. Certain of these leases include options to extend the lease and some include options to terminate the lease early. Leases with an initial term of 12 months or less are not recorded on the balance sheet and the related lease expense is recognized on a straight-line basis over the lease term. There are no leases that have not yet commenced that create significant rights and obligations for the Company. The components of lease cost are shown below: (Dollars in thousands) 2021 2020 Income Statement Location Lease Cost Operating lease cost (1) $ 4,248 $ 4,716 Selling, general and administrative expenses Operating lease cost (2) 6,404 7,406 Cost of sales Finance lease cost Amortization of right-of-use assets 461 298 Cost of sales Interest of lease liabilities 45 33 Interest expense Net lease cost $ 11,158 $ 12,453 (1) Included in operating lease cost is $0.7 million and $0.9 million of short-term lease costs for the years ended December 31, 2021 and 2020, respectively, and $0.4 million and $0.4 million of variable lease costs for the years ended December 31, 2021 and 2020, respectively. (2) Included in operating lease cost is $2.8 million and $2.7 million of short-term lease costs for the years ended December 31, 2021 and 2020, respectively, and approximately zero variable lease costs for December 31, 2021 and $0.7 million of variable lease costs for 2020. Supplemental balance sheet information related to leases are shown below: (Dollars in thousands) 2021 2020 Balance Sheet Location Assets Operating leased assets $ 13,186 $ 15,446 Operating leased assets Finance leased assets (1) 1,184 1,410 Property, plant and equipment, net Total leased assets $ 14,370 $ 16,856 Liabilities Current Operating $ 4,325 $ 5,431 Accrued expenses and other current liabilities Finance 687 640 Loans payable and current portion of long-term debt Noncurrent Operating 8,849 10,064 Operating lease non-current liabilities Finance 1,810 2,271 Long-term debt, less current portion Total lease liabilities $ 15,671 $ 18,406 (1) Finance leases are net of accumulated depreciation of $3.5 million and $3.1 million for December 31, 2021 and 2020, respectively. Supplemental cash flow information related to leases are shown below: (Dollars in thousands) 2021 2020 Cash paid for amounts included in the measurement of lease liabilities Operating cash flows from finance leases $ 45 $ 33 Operating cash flows from operating leases 7,014 7,959 Financing cash flows from finance leases 461 331 Leased assets obtained in exchange for new finance lease liabilities 301 961 Leased assets obtained in exchange for new operating lease liabilities 6,412 4,686 2021 Weighted-average remaining lease term (years) Operating leases 4.5 Finance leases 4.4 Weighted-average discount rate Operating leases 4.2 % Finance leases 4.5 % Maturities of lease liabilities are shown below as of December 31, 2021: (Dollars in thousands) Finance Operating 2022 $ 778 $ 5,129 2023 699 3,325 2024 570 2,337 2025 465 1,823 2026 331 1,422 Thereafter 139 1,804 Net minimum lease payments 2,982 15,840 Less: interest (485) (2,667) Present value of lease liabilities $ 2,497 $ 13,173
Leases	Leases The Company has leases for equipment, office space, plant sites and distribution centers. Certain of these leases include options to extend the lease and some include options to terminate the lease early. Leases with an initial term of 12 months or less are not recorded on the balance sheet and the related lease expense is recognized on a straight-line basis over the lease term. There are no leases that have not yet commenced that create significant rights and obligations for the Company. The components of lease cost are shown below: (Dollars in thousands) 2021 2020 Income Statement Location Lease Cost Operating lease cost (1) $ 4,248 $ 4,716 Selling, general and administrative expenses Operating lease cost (2) 6,404 7,406 Cost of sales Finance lease cost Amortization of right-of-use assets 461 298 Cost of sales Interest of lease liabilities 45 33 Interest expense Net lease cost $ 11,158 $ 12,453 (1) Included in operating lease cost is $0.7 million and $0.9 million of short-term lease costs for the years ended December 31, 2021 and 2020, respectively, and $0.4 million and $0.4 million of variable lease costs for the years ended December 31, 2021 and 2020, respectively. (2) Included in operating lease cost is $2.8 million and $2.7 million of short-term lease costs for the years ended December 31, 2021 and 2020, respectively, and approximately zero variable lease costs for December 31, 2021 and $0.7 million of variable lease costs for 2020. Supplemental balance sheet information related to leases are shown below: (Dollars in thousands) 2021 2020 Balance Sheet Location Assets Operating leased assets $ 13,186 $ 15,446 Operating leased assets Finance leased assets (1) 1,184 1,410 Property, plant and equipment, net Total leased assets $ 14,370 $ 16,856 Liabilities Current Operating $ 4,325 $ 5,431 Accrued expenses and other current liabilities Finance 687 640 Loans payable and current portion of long-term debt Noncurrent Operating 8,849 10,064 Operating lease non-current liabilities Finance 1,810 2,271 Long-term debt, less current portion Total lease liabilities $ 15,671 $ 18,406 (1) Finance leases are net of accumulated depreciation of $3.5 million and $3.1 million for December 31, 2021 and 2020, respectively. Supplemental cash flow information related to leases are shown below: (Dollars in thousands) 2021 2020 Cash paid for amounts included in the measurement of lease liabilities Operating cash flows from finance leases $ 45 $ 33 Operating cash flows from operating leases 7,014 7,959 Financing cash flows from finance leases 461 331 Leased assets obtained in exchange for new finance lease liabilities 301 961 Leased assets obtained in exchange for new operating lease liabilities 6,412 4,686 2021 Weighted-average remaining lease term (years) Operating leases 4.5 Finance leases 4.4 Weighted-average discount rate Operating leases 4.2 % Finance leases 4.5 % Maturities of lease liabilities are shown below as of December 31, 2021: (Dollars in thousands) Finance Operating 2022 $ 778 $ 5,129 2023 699 3,325 2024 570 2,337 2025 465 1,823 2026 331 1,422 Thereafter 139 1,804 Net minimum lease payments 2,982 15,840 Less: interest (485) (2,667) Present value of lease liabilities $ 2,497 $ 13,173

Miscellaneous (Income) Expense,

Miscellaneous (Income) Expense, Net	12 Months Ended
	Dec. 31, 2021
Other Income and Expenses [Abstract]
Miscellaneous (Income) Expense, Net	Miscellaneous (Income) Expense, Net Components of Miscellaneous (income) expense, net follow: (Dollars in thousands) 2021 2020 2019 Pension (income) expense $ (31,919) $ 6,425 $ 14,845 Brazil value-added tax (7,481) — — Loss (gain) on sale of assets (461) 87 (1,412) Dividends/royalty from affiliates, net (192) (264) (529) Bank fees 1,602 1,498 1,798 Other, net 3,184 (2,174) (474) Contingent consideration adjustment — (67) (2,723) Argentina export tax matter — — 217 Total Miscellaneous (income) expense, net $ (35,267) $ 5,505 $ 11,722 In 2018, we adopted ASU 2017-07, which requires all other components of net benefit costs (credit) besides service cost to be presented outside a subtotal of income from operations. As such, we recorded pension (income) of $31.9 million in 2021, and pension expense of $6.4 million in 2020 and $14.8 million in 2019 related to these benefit and costs. In 2021, the Company recorded a pretax gain of $7.5 million for certain excess Brazilian value-added tax paid from 2009 to 2019, plus applicable interest.

Earnings per Share

Earnings per Share	12 Months Ended
	Dec. 31, 2021
Earnings Per Share [Abstract]
Earnings per Share	Earnings per Share Details of the calculations of basic and diluted earnings per share follow: (Dollars in thousands, except per share amounts) 2021 2020 2019 Basic earnings per share computation: Income from continuing operations $ 73,342 $ 30,040 $ 34,826 Less: Net income attributable to noncontrolling interests from continuing operations 1,646 1,073 1,087 Net income attributable to Ferro Corporation from continuing operations 71,696 28,967 33,739 Income (loss) from discontinued operations, net of income taxes 77,199 14,003 (27,411) Less: Net income attributable to noncontrolling interests from discontinued operations 64 171 290 Net income (loss) attributable to Ferro Corporation from discontinued operations 77,135 13,832 (27,701) Net income attributable to Ferro Corporation common shareholders $ 148,831 $ 42,799 $ 6,038 Weighted-average common shares outstanding 82,711 82,232 82,083 Basic earnings per share from continuing operations attributable to Ferro Corporation common shareholders 0.86 0.35 0.41 Diluted earnings per share computation: Net income attributable to Ferro Corporation common shareholders $ 71,696 $ 28,967 $ 33,739 Adjustment for income (loss) from discontinued operations 77,135 13,832 (27,701) Net income attributable to Ferro Corporation common shareholders $ 148,831 $ 42,799 $ 6,038 Weighted-average common shares outstanding 82,711 82,232 82,083 Assumed exercise of stock options 557 272 407 Assumed satisfaction of restricted stock unit conditions 227 362 369 Assumed satisfaction of performance stock unit conditions 102 158 32 Weighted-average diluted shares outstanding 83,597 83,024 82,891 Diluted earnings per share from continuing operations attributable to Ferro Corporation common shareholders 0.86 0.35 0.41 The number of anti-dilutive shares were 1.2 million, 2.5 million, and 2.1 million for 2021, 2020, and 2019, respectively. These shares were excluded from the calculation of diluted earnings per share due to their anti-dilutive impact.

Share Repurchase Program

Share Repurchase Program	12 Months Ended
	Dec. 31, 2021
Stockholders' Equity Attributable to Parent [Abstract]
Share Repurchase Program	Share Repurchase Program In October 2018, the Company’s Board of Directors approved a new share repurchase program under which the Company is authorized to repurchase up to an additional $50 million of the Company’s outstanding common stock on the open market, including through Rule 10b5-1 plans, in privately negotiated transactions, or otherwise. This new program is in addition to the $100 million of authorization previously approved and announced. The timing and amount of shares to be repurchased will be determined by the Company, based on evaluation of market and business conditions, share price, and other factors. The share repurchase programs do not obligate the Company to repurchase any dollar amount or number of common shares, and may be suspended or discontinued at any time. The Company made no repurchases during 2021 and 2020. The Company repurchased 1,440,678 shares of common stock at an average price of $17.35 per share for a total cost of $25.0 million during 2019. As of December 31, 2021, $46.2 million of common stock could still be repurchased under the programs.

Accumulated Other Comprehensive

Accumulated Other Comprehensive Loss	12 Months Ended
	Dec. 31, 2021
Equity [Abstract]
Accumulated Other Comprehensive Loss	Accumulated Other Comprehensive Loss Changes in Accumulated other comprehensive loss by component, net of tax, were as follows: (Dollars in thousands) Postretirement Foreign Net Gain (Loss) Total Balance at December 31, 2018 $ 1,126 $ (103,190) $ (3,297) $ (105,361) Other comprehensive income (loss) before reclassifications, before tax — 6,269 (2,731) 3,538 Reclassification to earnings: Cash flow hedge income (loss), before tax — — (10,162) (10,162) Postretirement benefit liabilities income (loss), before tax 91 — — 91 Current period other comprehensive income (loss), before tax 91 6,269 (12,893) (6,533) Tax effect 11 654 (3,183) (2,518) Current period other comprehensive income (loss), net of tax 80 5,615 (9,710) (4,015) Balance at December 31, 2019 1,206 (97,575) (13,007) (109,376) Other comprehensive income (loss) before reclassifications, before tax — 24,980 (34,689) (9,709) Reclassification to earnings: Cash flow hedge income (loss), before tax — — 22,465 22,465 Postretirement benefit liabilities income (loss), before tax 2,146 — — 2,146 Current period other comprehensive income (loss), before tax 2,146 24,980 (12,224) 14,902 Tax effect 153 (2,113) (2,804) (4,764) Current period other comprehensive income (loss), net of tax 1,993 27,093 (9,420) 19,666 Balance at December 31, 2020 3,199 (70,482) (22,427) (89,710) Other comprehensive income (loss) before reclassifications, before tax — (85,676) 6,647 (79,029) Reclassification to earnings: Cash flow hedge income (loss), before tax — — 3,763 3,763 Postretirement benefit liabilities income (loss), before tax 216 — — 216 Currency translation reclassification to income on divestiture — 17,305 — 17,305 Amount reclassification to income (remote transaction) — — 11,012 11,012 Current period other comprehensive income (loss), before tax 216 (68,371) 21,422 (46,733) Tax effect 6 17 5,306 5,329 Current period other comprehensive income (loss), net of tax 210 (68,388) 16,116 (52,062) Balance at December 31, 2021 $ 3,409 $ (138,870) $ (6,311) $ (141,772)

Reporting for Segments

Reporting for Segments	12 Months Ended
	Dec. 31, 2021
Segment Reporting [Abstract]
Reporting for Segments	Reporting for SegmentsAs discussed in Note 4, during the fourth quarter of 2019, we entered into a definitive agreement to sell our Tile Coatings business which has historically been the majority of our Performance Coatings reportable segment. Substantially all of the assets and liabilities of our Tile Coatings business were classified as held-for-sale in the accompanying consolidated balance sheets and results are included within discontinued operations in the consolidated statement of operations for all years presented. The retained assets, liabilities and operations of the Performance Coatings reportable segment are reflected within our Functional Coatings reportable segment. The Company’s reportable segments are Functional Coatings and Color Solutions. Net sales to external customers by segment are presented in the table below. Sales between segments were not material. (Dollars in thousands) 2021 2020 2019 Functional Coatings $ 732,063 $ 608,192 $ 644,783 Color Solutions 394,201 350,762 369,674 Total net sales $ 1,126,264 $ 958,954 $ 1,014,457 Segment gross profit is the metric utilized by management to evaluate segment performance. We measure segment gross profit for internal reporting purposes by excluding certain other cost of sales not directly attributable to business units. Assets by segment are not regularly reviewed by the chief operating decision maker. Each segment’s gross profit and reconciliations to Income before income taxes are presented in the table below: (Dollars in thousands) 2021 2020 2019 Functional Coatings $ 218,619 $ 175,601 $ 192,668 Color Solutions 128,356 119,071 114,939 Other cost of sales (2,356) (916) 369 Total gross profit 344,619 293,756 307,976 Selling, general and administrative expenses 217,809 202,413 212,365 Restructuring and impairment charges 14,410 17,425 10,955 Other expense, net (157) 29,017 41,865 Income before income taxes $ 112,557 $ 44,901 $ 42,791 Each segment’s capital expenditures for long-lived assets are detailed below: (Dollars in thousands) 2021 2020 2019 Functional Coatings $ 13,826 $ 12,266 $ 46,304 Color Solutions 11,321 17,626 16,597 Total segment expenditures for long-lived assets 25,147 29,892 62,901 Unallocated corporate expenditures for long-lived assets 4,812 1,891 2,069 Total expenditures for long lived assets (1) $ 29,959 $ 31,783 $ 64,970 (1) Includes capital expenditures for discontinued operation of $1.1 million, $4.7 million and $10.0 million in 2021, 2020 and 2019, respectively, integrated within Functional Coatings. We sell our products throughout the world and we attribute sales to countries based on the country where we generate the customer invoice. No single country other than the U.S. and Germany represent greater than 10% of our net sales. Net sales by geography are as follows: (Dollars in thousands) 2021 2020 2019 United States $ 374,692 $ 341,461 $ 359,267 Germany 180,001 143,861 149,270 Other international 571,571 473,632 505,920 Total net sales $ 1,126,264 $ 958,954 $ 1,014,457 None of our operations in countries other than the U.S., Mexico, Spain, Germany and Columbia owns greater than 10% of consolidated long-lived assets. Long-lived assets that consist of property, plant, and equipment by geography at December 31, 2021 and 2020 are as follows: (Dollars in thousands) 2021 2020 United States $ 72,140 $ 69,088 Mexico 64,903 58,503 Spain 37,744 43,811 Germany 36,349 39,733 Columbia 30,597 30,888 Other international 80,023 88,022 Total long-lived assets $ 321,756 $ 330,045

Unconsolidated Affiliates Accou

Unconsolidated Affiliates Accounted For Under the Equity Method	12 Months Ended
	Dec. 31, 2021
Related Party Transactions [Abstract]
Unconsolidated Affiliates Accounted For Under the Equity Method	21. Unconsolidated Affiliates A ccounted For Under the Equity Method Our investments have been accounted for under the equity method because we exert significant influence over these affiliates, but we do not control them. Investmen t income from these equity method investments, which is reported in Miscellaneous expense (income), net was $0.5 million in 2021, and approximately zero in 2020 and approximately zero in 2019. The balance of our equity method investments, which is reported in Other non-current assets, was $6.4 million at December 31, 2021, and $7.4 million at December 31, 2020. The income (loss) that we record for these investments is equal to our proportionate share of the affiliates’ income or loss and our investments are equal to our proportionate share of the affiliates’ shareholders’ equity based on our ownership percentage. We have summarized below condensed income statement and balance sheet information for the combined equity method investees: (Dollars in thousands) 2021 2020 2019 Net sales $ 11,989 $ 12,444 $ 16,563 Gross profit 1,893 1,150 2,507 Income (loss) from continuing operations 287 (1,362) (861) Net income (loss) 229 (1,090) (689) (Dollars in thousands) 2021 2020 Current assets $ 12,612 $ 12,353 Non-current assets 3,426 3,644 Current liabilities (2,839) (1,938) Non-current liabilities (155) (27) We had the following transactions with our equity-method investees: (Dollars in thousands) 2021 2020 2019 Sales $ 4,226 $ 11,013 $ 7,308 Purchases 9 146 316 Dividends and interest received 192 144 154 Commission and royalties received — 108 363 Commissions and royalties paid 10 12 11

SCHEDULE_II__ VALUATION And QUA

SCHEDULE II — VALUATION And QUALIFYING ACCOUNTS And RESERVES	12 Months Ended
	Dec. 31, 2021
SEC Schedule, 12-09, Valuation and Qualifying Accounts [Abstract]
Schedule II - Valuation and Qualifying Accounts and Reserves	FERRO CORPORATION AND SUBSIDIARIES SCHEDULE II — VALUATION AND QUALIFYING ACCOUNTS AND RESERVES 1 Years Ended December 31, 2021, 2020 and 2019 (Dollars in thousands) Balance at Additions Charged Deductions Adjustment for Balance at Allowance for Possible Losses on Collection of Accounts Receivable: Year ended December 31, 2021 $ 2,320 1,050 (1,048) (362) $ 1,960 Year ended December 31, 2020 1,938 530 (205) 57 2,320 Year ended December 31, 2019 5,504 1,086 (4,487) (165) 1,938 Valuation Allowance on Net Deferred Tax Assets: Year ended December 31, 2021 $ 11,680 4,753 (1,325) 2 (1,622) $ 13,486 Year ended December 31, 2020 11,434 215 (84) 2 115 11,680 Year ended December 31, 2019 25,596 — (13,978) 2 (184) 11,434 (1) Schedule II is presented on a total Ferro basis, inclusive of discontinued operations. (2) Included within this deduction is $0.1 million, $0.1 million and $5.4 million for the years ended December 31, 2021, 2020, and 2019 respectively, of valuation allowance release, resulting from the conclusion that the underlying deferred tax assets are more likely than not to be realized.

Significant Accounting Polici_2

Significant Accounting Policies (Policy)	12 Months Ended
	Dec. 31, 2021
Accounting Policies [Abstract]
Reclassifications	Certain reclassifications have been made to the prior year financial statements to conform to current year classifications. The reclassification relates to the balance sheet presentation of assets and liabilities as held for sale and statement of operations presentation of results classified as discontinued operations in relation to the Tile Coatings business transaction. As of January 1, 2021, the United States and Latin America regions were combined into the Americas region.
Principles of Consolidation	Principles of Consolidation Our consolidated financial statements include the accounts of the parent company and the accounts of its subsidiaries and include the results of the Company and all entities in which the Company has a controlling interest. When we consolidate our financial statements, we eliminate intercompany transactions, accounts and profits. When we exert significant influence over an investee but do not control it, we account for the investment and the investment income using the equity method. These investments are reported in Other non-current assets on our consolidated balance sheet. We consolidate financial results for three legal entities in which we do not own 100% of the equity interests, either directly or indirectly through our subsidiaries. These entities have non-controlling interest ownerships ranging from 24.6% to 41.0%. When we acquire a subsidiary, its financial results are included in our consolidated financial statements from the date of the acquisition. When we dispose of a subsidiary, its financial results are included in our consolidated financial statements until the date of the disposition. In the event that a disposal group meets the criteria for discontinued operations, prior periods are adjusted to reflect the classification.
Use of Estimates and Assumptions in the Preparation of Financial Statements	Use of Estimates and Assumptions in the Preparation of Financial Statements We prepare our consolidated financial statements in conformity with accounting principles generally accepted in the United States, which requires us to make estimates and to use judgments and assumptions that affect the timing and amount of assets, liabilities, equity, revenues and expenses recorded and disclosed. The more significant estimates and judgments relate to revenue recognition, restructuring and cost reduction programs, asset impairment, income taxes, inventories, goodwill, pension and other postretirement benefits and environmental liabilities. Actual outcomes could differ from our estimates, resulting in changes in revenues or costs that could have a material impact on the Company’s results of operations, financial position, or cash flows.
Foreign Currency Translation	Foreign Currency Translation The financial results of our operations outside of the U.S. are recorded in local currencies, which generally are also the functional currencies for financial reporting purposes. The results of operations outside of the U.S. are translated from these functional currencies into U.S. dollars using the average monthly currency exchange rates. We use the average currency exchange rate for these results of operations as a reasonable approximation of the results had specific currency exchange rates been used for each individual transaction. Foreign currency transaction gains and losses are recorded, as incurred, as Other expense (income) in the consolidated statements of operations. Assets and liabilities are translated into U.S. dollars using exchange rates at the balance sheet dates, and we record the resulting foreign currency translation adjustments as a separate component of Accumulated other comprehensive loss in equity.
Revenue Recognition	Revenue Recognition Under Accounting Standards Codification (“ASC”) 606, revenues are recognized when control of the promised goods is transferred to our customers, in an amount that reflects the consideration we expect to be entitled to in exchange for those goods. In order to achieve that core principle, the Company applies the following five-step approach: 1) identify the contract with a customer; 2) identify the performance obligations; 3) determine the transaction price; 4) allocate the transaction price to the performance obligations in the contract; and 5) recognize revenue when a performance obligation is satisfied. The Company considers confirmed customer purchase orders, which in some cases are governed by master sales agreements, to be the contracts, from an accounting perspective, with customers. Under our standard contracts, the only performance obligation is the delivery of manufactured goods and the performance obligation is satisfied at a point in time, when the Company transfers control of the manufactured goods. The Company may receive orders for products to be delivered over multiple dates that may extend across several reporting periods. The Company invoices for each order and recognizes revenue for each distinct product upon shipment, once transfer of control has occurred. Payment terms are standard for the industry and jurisdiction in which we operate. In determining the transaction price, the Company evaluates whether the price is subject to refund or adjustment, to determine the net consideration to which the Company expects to be entitled. Discounts or rebates are specifically stated in customer contracts or invoices, and are recorded as a reduction of revenue in the period the related revenue is recognized. The product price as specified on the customer confirmed orders is considered the standalone selling price. The Company allocates the transaction price to each distinct product based on its relative standalone selling price. Revenue is recognized when control of the product is transferred to the customer (i.e., when the Company’s performance obligation is satisfied), which generally occurs at shipment. We review material contracts to determine transfer of control based upon the business practices and legal requirements of each country. For sales of all products, including those containing precious metals, we report revenues on a gross basis, along with their corresponding cost of sales to arrive at gross profit. The amount of shipping and handling fees invoiced to our customers at the time our product is shipped is included in net sales as we are the principal in those activities. Sales, valued-added and other taxes collected from our customers and remitted to governmental authorities are excluded from net sales. Credit memos issued to customers for sales returns and sales adjustments are recorded when they are incurred as a reduction of sales. Practical Expedients and Exemptions All material contracts have an original duration of one year or less and, as such, the Company uses the practical expedient applicable to such contracts, and has not disclosed the transaction price for the remaining performance obligations as of the end of each reporting period, or when the Company expects to recognize this revenue. When the period of time between the transfer of control of the goods and the time the customer pays for the goods is one year or less, the Company uses the practical expedient allowed by ASC 606 that provides relief from adjusting the amount of promised consideration for the effects of a financing component. We generally expense sales commissions when incurred because the amortization period is one year or less. These costs are recorded within Selling, general and administrative expenses.
Research and Development Expenses	Research and Development Expenses Research and development expenses are expensed as incurred and are included in Selling, general and administrative expenses. Total expenditures for product and application technology, including research and development, customer technical support and other related activities, were approximately $32.6 million for 2021, $35.6 million for 2020 and $41.0 million for 2019.
Restructuring Programs	Restructuring Programs We expense costs associated with exit and disposal activities designed to restructure operations and reduce ongoing costs of operations when we incur the related liabilities or when other triggering events occur. After the appropriate level of management, having the authority, approves the detailed restructuring plan and the appropriate criteria for recognition are met, we establish accruals for employee termination and other costs, as applicable. The accruals are estimates that are based upon factors including statutory and union requirements, affected employees’ lengths of service, salary level, health care benefit choices and contract provisions. We also analyze the carrying value of affected long-lived assets for impairment and reductions in their remaining estimated useful lives. In addition, we record the fair value of any new or remaining obligations when existing operating lease contracts are terminated or abandoned as a result of our exit and disposal activities.
Asset Impairment	Asset Impairment The Company’s long-lived and indefinite-lived assets include property, plant and equipment, goodwill, and intangible assets. We review property, plant and equipment and intangible assets for impairment whenever events or circumstances indicate that their carrying values may not be recoverable. The following are examples of such events or changes in circumstances: • An adverse change in the business climate of a long-lived asset or asset group; • An adverse change in the extent or manner in which a long-lived asset or asset group is used or in its physical condition; • Current operating losses for a long-lived asset or asset group combined with a history of such losses or projected or forecasted losses that demonstrate that the losses will continue; or • A current expectation that, more likely than not, a long-lived asset or asset group will be sold or otherwise significantly disposed of before the end of its previously estimated useful life. The carrying amount of property, plant and equipment and intangible assets is not recoverable if the carrying value of the asset group exceeds the sum of the undiscounted cash flows expected to result from the use and eventual disposition of the asset group. In the event of impairment, we recognize a loss for the excess of the recorded value over fair value. The long-term nature of these assets requires the estimation of cash inflows and outflows several years into the future and only takes into consideration technological advances known at the time of review. We review goodwill for impairment annually using a measurement date of October 31, primarily due to the timing of our annual budgeting process, or more frequently in the event of an impairment indicator. The fair value of each reporting unit that has goodwill is estimated using the average of both the income approach and the market approach, which we believe provides a reasonable estimate of the reporting unit’s fair value, unless facts or circumstances exist which indicate a more representative fair value. The income approach is a discounted cash flow model, which uses projected cash flows attributable to the reporting unit, including an allocation of certain corporate expenses based primarily on proportional sales. We use historical results, trends and our projections of market growth, internal sales efforts and anticipated cost structure assumptions to estimate future cash flows. Using a risk-adjusted, weighted-average cost of capital, we discount the cash flow projections to the measurement date. The market approach estimates a price reasonably expected to be paid by a market participant in the purchase of the reporting units based on a comparison to similar businesses. If the fair value of any reporting unit was determined to be less than its carrying value, we would obtain comparable market values or independent appraisals of its net assets.
Derivative Financial Instruments	Derivative Financial Instruments As part of our risk management activities, we employ derivative financial instruments, primarily interest rate swaps, cross currency swaps and foreign currency forward contracts, to hedge certain anticipated transactions, firm commitments, or assets and liabilities denominated in foreign currencies. We also purchase portions of our energy and precious metal requirements under fixed price forward purchase contracts designated as normal purchase contracts. We record derivatives on our balance sheet as either assets or liabilities that are measured at fair value. For derivative instruments that are designated and qualify as cash flow hedges, the gain or loss on the derivative is reported as a component of Accumulated other comprehensive loss (“AOCL”) and reclassified from AOCL into earnings when the hedged transaction affects earnings. For derivatives that are designated and qualify as net investment hedges, the gain or loss on the derivative is reported as a component of the currency translation in AOCL. Time value is excluded and the cash payments are recognized as an adjustment to interest expense. For derivatives that are not designated as hedges, the gain or loss on the derivative is recognized in current earnings. We only use derivatives to manage well-defined risks and do not use derivatives for speculative purposes.
Postretirement and Other Employee Benefits	Postretirement and Other Employee Benefits We recognize postretirement and other employee benefits expense as employees render the services necessary to earn those benefits. We determine defined benefit pension and other postretirement benefit costs and obligations with the assistance of third parties who perform certain actuarial calculations. The calculations and the resulting amounts recorded in our consolidated financial statements are affected by assumptions including the discount rate, expected long-term rate of return on plan assets, the annual rate of change in compensation for plan-eligible employees, estimated changes in costs of healthcare benefits, mortality tables, and other factors. We evaluate the assumptions used on an annual basis. All costs except the service cost component are recorded in Miscellaneous expense (income), net on the consolidated statement of operations.
Income Taxes	Income Taxes We account for income taxes in accordance with ASC Topic 740, Income Taxes, which requires the recognition of deferred tax assets and liabilities for the expected future tax effects of events that have been included in the financial statements. Under this method, deferred tax assets and liabilities are determined based on the differences between the financial statement and tax basis of assets and liabilities 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. We record deferred tax assets to the extent we believe these assets will more likely than not be realized. In making such determination, we consider all available positive and negative evidence, including future reversals of existing temporary differences, the availability of tax planning strategies, forecasted income, and recent financial operations. We recognize a tax benefit from an uncertain tax position when it is more likely than not that the position will be sustained upon examination, including resolutions of any related appeals or litigation processes, based on the technical merits. We recognize interest and penalties related to uncertain tax positions within the income tax expense line in the accompanying consolidated statements of operations.
Cash Equivalents	Cash Equivalents We consider all highly liquid instruments with original maturities of three months or less when purchased to be cash equivalents. These instruments are carried at cost, which approximates fair value.
Accounts Receivable and the Allowance for Doubtful Accounts	Accounts Receivable and the Allowance for Doubtful Accounts Ferro sells its products to customers in diversified industries throughout the world. No customer or related group of customers represents greater than 10% of net sales or accounts receivable. We perform ongoing credit evaluations of our customers and require collateral principally for export sales, when industry practices allow and as market conditions dictate, subject to our ability to negotiate secured terms relative to competitive offers. We regularly analyze significant customer accounts and provide for uncollectible accounts based on historical experience, customer payment history, the length of time the receivables are past due, the financial health of the customer, economic conditions and specific circumstances, as appropriate. Changes in these factors could result in additional allowances. Customer accounts we conclude to be uncollectible or to require excessive collection costs are written off against the allowance for doubtful accounts. Historically, write-offs of uncollectible accounts have been within our expectations. Detailed information about the allowance for doubtful accounts is provided below: (Dollars in thousands) 2021 2020 2019 Allowance for doubtful accounts $ 1,960 $ 2,502 $ 1,756 Bad debt expense 692 255 455
Inventories	Inventories We value inventory at the lower of cost or net realizable value, with cost determined utilizing the first-in, first-out (“FIFO”) method. We periodically evaluate the net realizable value of inventories based primarily upon their age, but also upon assumptions of future usage in production, customer demand and market conditions. Inventory values have been reduced to the lower of cost or net realizable value by allowances for slow moving or obsolete goods. We maintain raw materials on our premises that we do not own, including precious metals consigned from financial institutions and customers. We also consign inventory from our vendors. Although we have physical possession of the goods, their value is not reflected on our balance sheet because we do not have legal title. We obtain precious metals under consignment agreements with financial institutions for periods of one year or less. These precious metals are primarily silver, gold, platinum, and palladium and are used in the production of certain products for our customers. Under these arrangements, the financial institutions own the precious metals, and accordingly, we do not report these precious metals as inventory on our consolidated balance sheets although they are physically in our possession. The financial institutions charge us fees for these consignment arrangements, and these fees are recorded as cost of sales. These agreements are cancelable by either party at the end of each consignment period, however, because we have access to a number of consignment arrangements with available capacity, our consignment needs can be shifted among the other participating institutions in order to ensure our supply. In certain cases, these financial institutions can require cash deposits to provide additional collateral beyond the value of the underlying precious metals.
Property, Plant and Equipment	Property, Plant and Equipment We record property, plant and equipment at historical cost. In addition to the original purchased cost, including transportation, installation and taxes, we capitalize expenditures that increase the utility or useful life of existing assets. For constructed assets, we capitalize interest costs incurred during the period of construction. We expense repair and maintenance costs, as incurred. We depreciate property, plant and equipment on a straight-line basis, generally over the following estimated useful lives of the assets: Buildings 20 to 40 years Machinery and equipment 5 to 15 years
Other Capitalized Costs	Other Capitalized Costs We capitalize the costs of computer software developed or obtained for internal use after the preliminary project stage has been completed, and management, with the relevant authority, authorizes and commits to funding a computer software project, and it is probable that the project will be completed and the software will be used to perform the function intended. External direct costs of materials and services consumed in developing or obtaining internal-use computer software, payroll and payroll-related costs for employees who are directly associated with the project, and interest costs incurred when developing computer software for internal use are capitalized within Intangible assets. Capitalization ceases when the project is substantially complete, generally after all substantial testing is completed. We expense training costs and data conversion costs as incurred. We amortize software on a straight-line basis over its estimated useful life, which has historically been in a range of 1 to 10 years.
Environmental Liabilities	Environmental Liabilities As part of the production of some of our products, we handle, process, use and store hazardous materials. As part of these routine processes, we expense recurring costs associated with control and disposal of hazardous materials as they are incurred. Occasionally, we are subject to ongoing, pending or threatened litigation related to the handling of these materials or other matters. If, based on available information, we believe that we have incurred a liability and we can reasonably estimate the amount, we accrue for environmental remediation and other contingent liabilities. We disclose material contingencies if the likelihood of the potential loss is reasonably possible but the amount is not reasonably estimable. In estimating the amount to be accrued for environmental remediation, we use assumptions about: • Remediation requirements at the contaminated site; • The nature of the remedy; • Existing technology; • The outcome of discussions with regulatory agencies; • Other potentially responsible parties at multi-party sites; and • The number and financial viability of other potentially responsible parties. We actively monitor the status of sites, and, as assessments and cleanups proceed, we update our assumptions and adjust our estimates as necessary. Because the timing of related payments is uncertain, we do not discount the estimated remediation costs. The following section provides a description of new accounting pronouncements ("Accounting Standard Update" or "ASU") issued by the Financial Accounting Standards Board ("FASB") that are applicable to the Company.
Recently Adopted Accounting Pronouncement	Recently Adopted Accounting Pronouncement This section provides a description of new accounting pronouncements issued by the FASB that are applicable to the Company. The following ASU was adopted as of January 1, 2021 and did not have a material impact on the consolidated financial statements: Standard Description ASU No. 2018-14, Compensation-Retirement Benefits-Defined Benefit Plans-General (Subtopic 715-20): Disclosure Framework-Changes to the Disclosure Requirements for Defined Benefit Plans , issued August, 2018 Modifies disclosure requirements for employers that sponsor defined benefit pension or other postretirement plans.
New Accounting Standards Not Yet Adopted	New Accounting Standards Not Yet Adopted We are currently evaluating the impact on our financial statements of the following ASUs: Standard Description ASU No. 2020-04, Reference Rate Reform (Topic 848): Facilitation of the Effects of Reference Rate Reform on Financial Reporting , issued March, 2020 Along with ASU 2021-01, Reference Rate Reform (Topic 848): Scope , provide optional expedients and exceptions for applying GAAP to contracts, hedging relationships, and other transactions affected by reference rate reform if certain criteria are met. The amendments in these ASUs are effective for all entities through December 31, 2022. ASU No. 2021-08 - Business Combinations (Topic 805): Accounting for Contract Assets and Contract Liabilities from Contracts with Customers, issued October 2021 Requires that an entity recognize and measure contract assets and contract liabilities acquired in a business combination in accordance with Topic 606. The amendments in this ASU are effective for fiscal years beginning after December 15, 2022, including interim periods within those fiscal years. No other new accounting pronouncements issued had, or are expected to have, a material impact of the Company’s consolidated financial statements.

Significant Accounting Polici_3

Significant Accounting Policies (Tables)	12 Months Ended
	Dec. 31, 2021
Accounting Policies [Abstract]
Detailed Information about Allowance for Doubtful Accounts	Detailed information about the allowance for doubtful accounts is provided below: (Dollars in thousands) 2021 2020 2019 Allowance for doubtful accounts $ 1,960 $ 2,502 $ 1,756 Bad debt expense 692 255 455
Estimated Lives of Property, Plant and Equipment	Buildings 20 to 40 years Machinery and equipment 5 to 15 years

Revenue (Tables)

Revenue (Tables)	12 Months Ended
	Dec. 31, 2021
Revenue from Contract with Customer [Abstract]
Revenues Disaggregated by Geography and Reportable Segment	Revenues disaggregated by geography and reportable segment for the year ended December 31, 2021, follow: (Dollars in thousands) EMEA Americas Asia Pacific Total Functional Coatings $ 342,396 $ 266,745 $ 122,922 $ 732,063 Color Solutions 144,446 205,473 44,282 394,201 Total net sales $ 486,842 $ 472,218 $ 167,204 $ 1,126,264 Revenues disaggregated by geography and reportable segment for the year ended December 31, 2020, follow: (Dollars in thousands) EMEA Americas Asia Pacific Total Functional Coatings $ 267,041 $ 240,424 $ 100,727 $ 608,192 Color Solutions 129,222 181,319 40,221 350,762 Total net sales $ 396,263 $ 421,743 $ 140,948 $ 958,954 Revenues disaggregated by geography and reportable segment for the year ended December 31, 2019, follow: (Dollars in thousands) EMEA Americas Asia Pacific Total Functional Coatings $ 295,198 $ 248,064 $ 101,521 $ 644,783 Color Solutions 136,934 195,255 37,485 369,674 Total net sales $ 432,132 $ 443,319 $ 139,006 $ 1,014,457

Discontinued Operations (Tables

Discontinued Operations (Tables)	12 Months Ended
	Dec. 31, 2021
Discontinued Operations and Disposal Groups [Abstract]
Summary of Discontinued Operations	The table below summarizes results for the Tile Coatings business for the years ended December 31, 2021, 2020 and 2019 which are reflected in our consolidated statements of operations as discontinued operations. Interest expense has been allocated to the discontinued operations based on the ratio of net assets of the business to consolidated net assets excluding debt. (Dollars in thousands) 2021 2020 2019 Net sales $ 83,579 $ 440,501 $ 491,493 Cost of sales 60,634 327,505 388,959 Gross profit 22,945 112,996 102,534 Selling, general and administrative expenses 20,327 72,033 71,591 Restructuring and impairment charges 303 2,290 44,378 Interest expense 1,682 10,650 11,556 Interest earned (189) (184) (122) Foreign currency losses (gains), net 363 6,608 (2,397) Gain on sale of business, net (94,832) — — Miscellaneous expense, net 251 2,281 2,127 Income (loss) from discontinued operations before income taxes 95,040 19,318 (24,599) Income tax expense 17,841 5,315 2,812 Income (loss) from discontinued operations, net of income taxes 77,199 14,003 (27,411) Less: Net income attributable to noncontrolling interests 64 171 290 Net income (loss) attributable to Tile Coatings business $ 77,135 $ 13,832 $ (27,701) The following table summarizes the assets and liabilities which are classified as held-for-sale at December 31, 2020: (Dollars in thousands) December 31, Cash and cash equivalents $ 8,200 Accounts receivable, net 211,548 Inventories 84,239 Other receivables 1,630 Other current assets 2,237 Current assets held-for-sale 307,854 Property, plant and equipment, net 93,430 Amortizable intangible assets, net 42,126 Deferred income taxes 12,267 Other non-current assets 6,384 Non-current assets held-for-sale 154,207 Total assets held-for-sale $ 462,061 Loans payable and current portion of long-term debt $ 3,927 Accounts payable 85,308 Accrued payrolls 5,946 Accrued expenses and other current liabilities 12,364 Current liabilities held-for-sale 107,545 Long-term debt, less current portion 56,359 Postretirement and pension liabilities 8,119 Other non-current liabilities 6,671 Non-current liabilities held-for-sale 71,149 Total liabilities held-for-sale $ 178,694 The following table summarizes cash flow data relating to discontinued operations for the years ended December 31, 2021, 2020 and 2019: (Dollars in thousands) 2021 2020 2019 Depreciation $ — $ — $ 11,264 Amortization of intangible assets — — 3,192 Capital expenditures (1,074) (4,713) (9,965) Gain on sale of discontinued operations (94,832) — — Non-cash operating activities - goodwill impairment — — 42,515 Non-cash operating activities - restructuring — 1,080 127 Non-cash investing activities - capital expenditures, consisting of unpaid capital expenditure liabilities at year end — 1,493 1,087

Inventories (Tables)

Inventories (Tables)	12 Months Ended
	Dec. 31, 2021
Inventory Disclosure [Abstract]
Inventories	Inventory at December 31, 2021 and 2020 consisted of the following: (Dollars in thousands) 2021 2020 Raw materials $ 80,519 $ 81,344 Work in process 45,653 48,770 Finished goods 136,497 130,218 Total inventories $ 262,669 $ 260,332

Property, Plant and Equipment (

Property, Plant and Equipment (Tables)	12 Months Ended
	Dec. 31, 2021
Property, Plant and Equipment [Abstract]
Schedule of Property, Plant and Equipment	Property, plant and equipment, net at December 31, 2021 and 2020 consisted of the following: (Dollars in thousands) 2021 2020 Land $ 37,237 $ 39,500 Buildings 222,391 201,400 Machinery and equipment 485,030 487,327 Construction in progress 30,417 76,800 Total property, plant and equipment 775,075 805,027 Total accumulated depreciation (453,319) (474,982) Property, plant and equipment, net $ 321,756 $ 330,045

Goodwill and Other Intangible_2

Goodwill and Other Intangible Assets (Tables)	12 Months Ended
	Dec. 31, 2021
Goodwill and Intangible Assets Disclosure [Abstract]
Details and Activity of Goodwill by Segment	(Dollars in thousands) Functional Color Total Goodwill, net at December 31, 2019 $ 121,905 $ 50,307 $ 172,212 Foreign currency adjustments 1,665 1,474 3,139 Goodwill, net at December 31, 2020 123,570 51,781 175,351 Foreign currency adjustments (2,791) (716) (3,507) Goodwill, net at December 31, 2021 $ 120,779 $ 51,065 $ 171,844
Schedule of Impairment of Goodwill	(Dollars in thousands) December 31, December 31, Goodwill, gross $ 230,311 $ 233,818 Accumulated impairment losses (58,467) (58,467) Goodwill, net $ 171,844 $ 175,351
Details of Amortizable Intangible Assets	(Dollars in thousands) Estimated 2021 2020 Gross amortizable intangible assets: Patents 10 - 16 years $ 5,465 $ 5,589 Land rights 20 - 40 years 3,257 3,173 Technology/know-how and other 1 - 30 years 116,154 116,015 Customer relationships 10 - 20 years 64,917 68,142 Total gross amortizable intangible assets 189,793 192,919 Accumulated amortization: Patents (5,444) (5,566) Land rights (1,762) (1,630) Technology/know-how and other (67,638) (61,104) Customer relationships (21,035) (18,317) Total accumulated amortization (95,879) (86,617) Amortizable intangible assets, net $ 93,914 $ 106,302
Schedule of Indefinite-Lived Intangible Assets	(Dollars in thousands) 2021 2020 Indefinite-lived intangibles assets: Trade names and trademarks $ 12,763 $ 13,198

Debt and Other Financing (Table

Debt and Other Financing (Tables)	12 Months Ended
	Dec. 31, 2021
Debt Disclosure [Abstract]
Schedule of Loans Payable and Current Portion of Long-Term Debt	(Dollars in thousands) 2021 2020 Current portion of long-term debt $ 8,964 $ 8,839 Loans payable and current portion of long-term debt $ 8,964 $ 8,839
Summary of Long-Term Debt	(Dollars in thousands) 2021 2020 Term loan facility, net of unamortized issuance costs, maturing 2024 (1) $ 253,450 $ 793,731 Capital lease obligations 2,497 2,911 Other notes 4,327 3,706 Total long-term debt 260,274 800,348 Current portion of long-term debt (8,964) (8,839) Long-term debt, less current portion $ 251,310 $ 791,509
Annual Maturities of Long-term Debt	2022 $ 9,056 2023 8,977 2024 238,645 2025 758 2026 624 Thereafter 3,499 Total maturities of long-term debt 261,559 Unamortized issuance costs on Term loan facility (800) Imputed interest and executory costs on capitalized lease obligations (485) Total long-term debt $ 260,274
Schedule of Trade Accounts Receivable in International Receivable Sales Programs	(Dollars in thousands) 2021 2020 Trade accounts receivable sold to financial institutions $ 618,646 $ 340,516 Cash proceeds from financial institutions (1) 499,635 241,937 (1) Excluded from the table above, in 2020, our Tile Coatings business received cash proceeds from financial institutions of $47.3 million. Refer to Note 4 for additional discussion of the Tile Coatings business and its classification as discontinued operations.

Financial Instruments (Tables)

Financial Instruments (Tables)	12 Months Ended
	Dec. 31, 2021
Schedule of Financial Instruments Assets (Liabilities) Measured at Fair Value	The following financial instrument assets (liabilities) are presented at their respective carrying amount, fair value and classification within the fair value hierarchy: December 31, 2021 Carrying Fair Value (Dollars in thousands) Total Level 1 Level 2 Level 3 Cash and cash equivalents $ 71,493 $ 71,493 $ 71,493 $ — $ — Term loan facility - Amended Credit Facility (1) (253,450) (252,815) — (252,815) — Other long-term notes payable (4,327) (2,681) — (2,681) — Cross-currency swaps 765 765 — 765 — Interest rate swaps (4,206) (4,206) — (4,206) — Foreign currency forward contracts, net (1,367) (1,367) — (1,367) — December 31, 2020 Carrying Fair Value (Dollars in thousands) Total Level 1 Level 2 Level 3 Cash and cash equivalents $ 174,077 $ 174,077 $ 174,077 $ — $ — Term loan facility - Credit Facility (1) (793,731) (783,143) — (783,143) — Other long-term notes payable (3,706) (1,887) — (1,887) — Cross-currency swaps (5,162) (5,162) — (5,162) — Interest rate swaps (24,694) (24,694) — (24,694) — Foreign currency forward contracts, net 2,019 2,019 — 2,019 — (1) The carrying value of the term loan facility is net of unamortized debt issuance costs of $0.8 million and $3.7 million for the period ended December 31, 2021, and December 31, 2020, respectively.
Schedule of Gain (Loss) Recognized in AOCI and the Amount of Gain (Loss) Reclassified Into Earnings	The amount of gain (loss) recognized in AOCL and the amount of loss (gain) reclassified into earnings for the year ended December 31, 2021 and 2020, follow: Amount of Gain (Loss) Amount of (Gain) Loss Reclassified from Location of Gain (Loss) (Dollars in thousands) 2021 2020 2021 2020 Interest rate swaps $ 2,490 $ (16,274) $ (7,864) $ (4,757) Interest expense Cross-currency swaps 4,157 (18,415) (286) 2,137 Interest expense $ (8,150) $ (2,620) Total Interest expense Cross-currency swaps 4,387 (19,845) Foreign currency losses (gains), net $ 4,387 $ (19,845) Total Foreign currency losses (gains), net
Gain (Loss) on Net Investment Hedges Recognized in AOCI, Amount Reclassified Into Earnings and Gain Recognized in Income on Derivative	The amount of gain (loss) on net investment hedges recognized in AOCL and the amount of gain recognized in income on derivative (amount excluded from effectiveness testing) for the year ended December 31, 2021 and 2020, follow: Amount of Gain (Loss) Amount of Gain Location of Gain (Dollars in thousands) 2021 2020 2021 2020 Cross-currency swaps $ — $ (7,655) $ — $ 1,468 Interest expense
Fair Value of Derivative Instruments on Consolidated Balance Sheets	The following table presents the fair values of our derivative instruments on our consolidated balance sheets. All derivatives are reported on a gross basis. (Dollars in thousands) 2021 2020 Balance Sheet Location Asset derivatives: Cross-currency swaps $ 62 $ 9 Other current assets Cross-currency swaps 703 — Other non-current assets Foreign currency forward contracts 205 2,649 Other current assets Liability derivatives: Interest rate swaps $ (2,442) $ (8,436) Accrued expenses and other current liabilities Interest rate swaps (1,764) (16,258) Other non-current liabilities Cross-currency swaps — (67) Accrued expenses and other current liabilities Cross-currency swaps — (5,104) Other non-current liabilities Foreign currency forward contracts (1,572) (630) Accrued expenses and other current liabilities
Net Investment Hedging
Effect on Derivative Instruments on Consolidated Statements of Operations	The total amounts of expense and the respective line items in which the effect of cash flow hedges is presented in the condensed consolidated statement of operations for the year ended December 31, 2021 and 2020, are as follows: (Dollars in thousands) 2021 2020 Interest expense $ 28,166 $ 21,880 Foreign currency losses, net 5,480 3,627
Foreign currency forward contracts
Effect on Derivative Instruments on Consolidated Statements of Operations	The following table presents the effect on our consolidated statements of operations for the years ended December 31, 2021, 2020 and 2019, respectively, of derivatives not designated as hedging instruments: Amount of Gain (Loss) Location of Gain (Loss) in Earnings (Dollars in thousands) 2021 2020 2019 Interest rate swaps $ (262) $ — $ — Interest expense Cross-currency swaps 120 — — Interest expense Foreign currency forward contracts (5,523) 6,589 (2,462) Foreign currency losses (gains), net

Income Taxes (Tables)

Income Taxes (Tables)	12 Months Ended
	Dec. 31, 2021
Income Tax Disclosure [Abstract]
Earnings Before Income Tax Expense	Income tax expense (benefit) is based on our earnings from continuing operations before income taxes as presented in the following table: (Dollars in thousands) 2021 2020 2019 U.S. $ 10,389 $ 7,961 $ 18,709 Foreign 102,168 36,940 24,082 Total $ 112,557 $ 44,901 $ 42,791
Income Tax Expense from Continuing Operations	Our income tax expense (benefit) from continuing operations consists of the following components: (Dollars in thousands) 2021 2020 2019 Current: U.S. federal $ 5,902 $ (3,298) $ 475 Foreign 25,794 20,238 18,204 State and local 23 104 168 Total current 31,719 17,044 18,847 Deferred: U.S. federal 4,229 3,935 (3,832) Foreign 2,280 (6,856) (8,340) State and local 987 738 1,290 Total deferred 7,496 (2,183) (10,882) Total income tax expense (benefit) $ 39,215 $ 14,861 $ 7,965
Income Tax Expense (Benefit) Allocated Directly to Ferro Corporation Shareholders' Equity	In addition, income tax expense (benefit) that we allocated directly to Ferro Corporation shareholders’ equity is detailed in the following table: (Dollars in thousands) 2021 2020 2019 Interest rate swaps $ 5,306 $ (2,848) $ (3,210) Postretirement benefit liability adjustments 6 153 11 Net investment hedge — (2,113) 654 Foreign currency translations 17 44 27 Total income tax expense (benefit) allocated to Ferro Corporation shareholders' equity $ 5,329 $ (4,764) $ (2,518)
Reconciliation of U.S. Federal Statutory Income Tax Rate and Effective Tax Rate	A reconciliation of the U.S. federal statutory income tax rate and our effective tax rate follows: 2021 2020 2019 U.S. federal statutory income tax rate 21.0 % 21.0 % 21.0 % Foreign tax rate difference 7.7 7.2 9.8 Foreign withholding taxes 4.2 0.7 1.3 Foreign currency 1.7 4.1 1.4 Non-deductible expenses 1.5 4.5 4.4 Tax rate changes 1.0 1.1 0.9 Global intangible low-taxed income, net 0.8 2.5 2.8 State taxes 0.8 1.0 1.3 Net adjustment of prior year accrual 0.5 1.3 (5.0) Adjustment of valuation allowances 0.5 (0.9) (16.1) Goodwill dispositions, impairments and amortization (0.1) — (1.2) Foreign derived intangible income deduction (0.6) (0.7) (3.2) Tax credits (1.2) (4.4) (3.2) Other (1.3) (1.7) 2.7 Uncertain tax positions, net of tax audit settlements (1.7) (2.6) 1.7 Effective tax rate 34.8 % 33.1 % 18.6 %
Components of Deferred Tax Assets and Liabilities	The components of deferred tax assets and liabilities at December 31, 2021 and 2020 were: (Dollars in thousands) 2021 2020 Deferred tax assets: Foreign operating loss carryforwards $ 30,771 $ 36,631 Pension and other benefit programs 28,878 41,968 Foreign tax credit carryforwards 16,782 12,306 Accrued liabilities 12,792 12,883 Disallowed interest 10,025 7,692 Other 7,728 7,217 Other credit carryforwards 7,712 8,639 Inventories 3,605 2,879 State and local operating loss carryforwards 2,709 1,900 Currency differences 1,674 5,605 Allowance for doubtful accounts 280 589 Total deferred tax assets 122,956 138,309 Deferred tax liabilities: Property, plant and equipment and intangibles - depreciation and amortization 20,835 16,024 Unremitted earnings of foreign subsidiaries 2,110 1,903 Deferred gain — 2,351 Other — 2,030 Total deferred tax liabilities 22,945 22,308 Net deferred tax assets before valuation allowance 100,011 116,001 Valuation allowance (13,486) (10,872) Net deferred tax assets $ 86,525 $ 105,129
Expirations of Operating Loss Carryforwards and Tax Credit Carryforwards	These operating loss carryforwards and tax credit carryforwards expire as follows: (Dollars in thousands) Operating Loss Tax Credit Expiring in: 2022 $ 412 $ 2,897 2023-2027 31,519 15,917 2028-2032 10,239 3,260 2033-2037 10,569 3,063 2038-2042 9,892 815 2043-Indefinitely 127,517 726 Total $ 190,148 $ 26,678
Classification of Net Deferred Income Tax Assets	We classified net deferred income tax assets as of December 31, 2021 and 2020 as detailed in the following table: (Dollars in thousands) 2021 2020 Non-current assets $ 98,199 $ 115,962 Non-current liabilities (11,674) (10,833) Net deferred tax assets $ 86,525 $ 105,129
Activity and Balances of Unrecognized Tax Benefits	Activity and balances of unrecognized tax benefits are summarized below: (Dollars in thousands) 2021 2020 2019 Balance at beginning of year $ 22,483 $ 26,000 $ 24,869 Additions based on tax positions related to the current year — 153 3,425 Additions for tax positions of prior years — 260 — Reductions for tax positions of prior years (6,061) (3,781) — Reductions as a results of expiring statutes of limitations (5,218) (1,394) (688) Foreign currency adjustments (419) 1,245 (660) Settlements with taxing authorities — — (946) Balance at end of year $ 10,785 $ 22,483 $ 26,000

Retirement Benefits (Tables)

Retirement Benefits (Tables)	12 Months Ended
	Dec. 31, 2021
Retirement Benefits [Abstract]
Net Periodic Benefit Cost (Credit)	U.S. Pension Plans Non-U.S. Plans (Dollars in thousands) 2021 2020 2019 2021 2020 2019 Service cost $ 1 $ 10 $ 10 $ 1,389 $ 1,555 $ 1,410 Interest cost 7,521 9,479 11,787 1,387 1,788 2,264 Expected return on plan assets (15,248) (14,782) (12,622) (473) (601) (758) Amortization of prior service cost — — — (72) 13 7 Mark-to-market actuarial net (gains) losses (18,200) 10,938 1,228 (7,113) 2,977 11,033 Curtailment and settlement effects (gains) losses — — — 53 66 292 Special termination benefits — 114 — 1 26 — Net periodic benefit cost (credit) $ (25,926) $ 5,759 $ 403 $ (4,828) $ 5,824 $ 14,248 Weighted-average assumptions: Discount rate 2.55 % 3.35 % 4.40 % 1.14 % 1.76 % 2.61 % Rate of compensation increase N/A N/A N/A 2.85 % 3.11 % 3.19 % Expected return on plan assets 7.48 % 7.70 % 7.70 % 1.55 % 2.04 % 2.74 %
Defined Benefit Pension Plans	U.S. Pension Plans Non-U.S. Pension Plans (Dollars in thousands) 2021 2020 2021 2020 Change in benefit obligation Benefit obligation at beginning of year $ 306,310 $ 296,181 $ 130,132 $ 116,698 Service cost 1 10 1,389 1,555 Interest cost 7,521 9,479 1,387 1,788 Curtailments — — — — Amendments — — (131) (714) Settlements — — (132) (835) Special termination benefits — 114 1 26 Plan participants' contributions — — — — Benefits paid (21,424) (21,119) (2,463) (3,145) Actuarial (gain) loss (8,154) 21,645 (8,654) 4,907 Exchange rate effect — — (8,938) 9,852 Benefit obligation at end of year $ 284,253 $ 306,310 $ 112,591 $ 130,132 Accumulated benefit obligation at end of year $ 284,253 $ 306,310 $ 105,155 $ 119,914 Change in plan assets: Fair value of plan assets at beginning of year $ 229,245 $ 223,227 $ 37,587 $ 33,898 Actual return on plan assets 25,294 25,489 (1,121) 2,465 Employer contributions 10,693 1,648 1,452 2,363 Plan participants' contributions — — — — Benefits paid (21,424) (21,119) (2,463) (3,145) Effect of settlements — — (132) (835) Exchange rate effect — — (2,544) 2,841 Fair value of plan assets at end of year $ 243,808 $ 229,245 $ 32,780 $ 37,587 Amounts recognized in the balance sheet: Other non-current assets $ — $ — $ 283 $ 59 Accrued expenses and other current liabilities (581) (389) (2,712) (2,575) Postretirement and pension liabilities (39,864) (76,676) (77,382) (90,029) Funded status $ (40,445) $ (77,065) $ (79,811) $ (92,545) U.S. Pension Plans Non-U.S. Pension Plans (Dollars in thousands) 2021 2020 2021 2020 Weighted-average assumptions as of December 31: Discount rate 2.85 % 2.55 % 1.43 % 1.29 % Rate of compensation increase N/A N/A 2.86 % 2.98 % Pension plans with benefit obligations in excess of plan assets: Benefit obligations $ 284,253 $ 306,310 $ 81,952 $ 94,567 Plan assets 243,808 229,245 1,858 1,963 Pension plans with accumulated benefit obligations in excess of plan assets: Projected benefit obligations $ 284,253 $ 306,310 $ 80,897 $ 94,057 Accumulated benefit obligations 284,253 306,310 73,540 83,923 Plan assets 243,808 229,245 803 1,518 Activity and balances in Accumulated other comprehensive loss related to defined benefit pension plans are summarized below: U.S. Pension Plans Non-U.S. Pension Plans (Dollars in thousands) 2021 2020 2021 2020 Prior service (cost): Balance at beginning of year $ — $ — $ (672) $ (44) Amounts recognized as net periodic benefit costs — — 72 (13) Plan amendments — — (131) (604) Exchange rate effects — — 33 (11) Balance at end of year $ — $ — $ (698) $ (672)
Fair Value of Pension Plan Assets	The fair values of our pension plan assets at December 31, 2021, by asset category are as follows: (Dollars in thousands) Level 1 Level 2 Level 3 Total U.S. plans: Fixed income: Guaranteed deposits $ — $ 1,602 $ — $ 1,602 Mutual funds 79,837 — — 79,837 Commingled funds — 365 156 521 Equities: U.S. common stocks 6,180 — — 6,180 Mutual funds 138,692 — — 138,692 Commingled funds — 533 — 533 Total assets in the fair value hierarchy 224,709 2,500 156 227,365 Investments measured at net asset value — — — 16,443 Investments at fair value $ 224,709 $ 2,500 $ 156 $ 243,808 Non-U.S. plans Fixed income: Cash and cash equivalents $ 102 $ — $ — $ 102 Guaranteed deposits — 744 29,578 30,322 Mutual funds 1,417 661 — 2,078 Other 84 — — 84 Equities: Mutual funds 194 — — 194 Total $ 1,797 $ 1,405 $ 29,578 $ 32,780 The fair values of our pension plan assets at December 31, 2020, by asset category are as follows: (Dollars in thousands) Level 1 Level 2 Level 3 Total U.S. plans: Fixed income: Guaranteed deposits $ — $ 1,699 $ — $ 1,699 Mutual funds 72,424 — — 72,424 Commingled funds — 423 182 605 Equities: U.S. common stocks 4,142 — — 4,142 Mutual funds 135,791 — — 135,791 Commingled funds — 628 — 628 Total assets in the fair value hierarchy 212,357 2,750 182 215,289 Investments measured at net asset value — — — 13,956 Investments at fair value $ 212,357 $ 2,750 $ 182 $ 229,245 Non-U.S. plans Fixed income: Cash and cash equivalents $ 183 $ — $ — $ 183 Guaranteed deposits — 782 33,733 34,515 Mutual funds 1,519 1,093 — 2,612 Other 84 — — 84 Equities: Mutual funds 193 — — 193 Total $ 1,979 $ 1,875 $ 33,733 $ 37,587
Schedule of Rollforward of Level 3 Assets	(Dollars in thousands) Guaranteed Commingled Total Balance at December 31, 2019 $ 30,155 $ 244 $ 30,399 Sales (616) — (616) Gains (losses) included in earnings 4,194 (62) 4,132 Exchange rate effect — — — Balance at December 31, 2020 33,733 182 33,915 Sales (669) — (669) Gains (losses) included in earnings (1,140) (26) (1,166) Exchange rate effect (2,346) — (2,346) Balance at December 31, 2021 $ 29,578 $ 156 $ 29,734
Future Pension Benefit Payments	We estimate that future pension benefit payments, will be as follows: (Dollars in thousands) U.S. Non-U.S. 2022 $ 20,501 $ 3,975 2023 20,170 4,678 2024 19,914 3,672 2025 19,794 3,905 2026 19,204 4,365 2027-2031 90,225 22,984
Postretirement Health Care and Life Insurance Benefit Plans	(Dollars in thousands) 2021 2020 2019 Net periodic benefit cost: Interest expense $ 272 $ 529 $ 702 Service cost — 3 2 Amortization of prior service costs (4) (4,240) — Mark-to-market actuarial net loss (gain) (606) 101 1,080 Total net periodic benefit cost (credit) $ (338) $ (3,607) $ 1,784 Weighted-average assumptions: Discount rate 2.40 % 3.25 % 4.30 % Current trend rate for health care costs 6.00 % 6.10 % 6.30 % Ultimate trend rate for health care costs 4.50 % 4.50 % 4.50 % Year that ultimate trend rate is reached 2036 2036 2036 (Dollars in thousands) 2021 2020 Change in benefit obligation: Benefit obligation at beginning of year $ 11,854 $ 17,149 Service cost — 3 Interest cost 272 529 Plan amendments (4) (4,240) Benefits paid (1,529) (1,688) Actuarial loss (gain) (606) 101 Benefit obligation at end of year $ 9,987 $ 11,854 Change in plan assets: Fair value of plan assets at beginning of year $ — $ — Employer contributions 1,529 1,688 Benefits paid (1,529) (1,688) Fair value of plan assets at end of year $ — $ — Amounts recognized in the balance sheet: Accrued expenses and other current liabilities $ (892) $ (1,047) Postretirement and pension liabilities (9,095) (10,807) Funded status $ (9,987) $ (11,854) Weighted-average assumptions as of December 31: Discount rate 2.80 % 2.40 % Current trend rate for health care costs 5.40 % 6.00 % Ultimate trend rate for health care costs 4.00 % 4.50 % Year that ultimate trend rate is reached 2045 2036
Future Postretirement Health Care and Life Insurance Benefit Payments	We estimate that future postretirement health care and life insurance benefit payments will be as follows: (Dollars in thousands) Before After 2022 $ 892 $ 892 2023 850 850 2024 816 816 2025 775 775 2026 741 741 2027-2031 3,204 3,204

Stock-based Compensation (Table

Stock-based Compensation (Tables)	12 Months Ended
	Dec. 31, 2021
Stock Options
Details of Weighted-Average Grant-Date Fair Values and Assumptions Used for Estimating Fair Values	The following table details the weighted-average grant-date fair values and the assumptions used for estimating the fair values of stock options granted in the respective years: 2021 2020 2019 Weighted-average grant-date fair value $ 5.94 $ 5.28 $ 6.47 Expected life, in years 6.0 5.2 5.6 Risk-free interest rate 0.8 % 1.4 % 2.5 % Expected volatility 40.4 % 35.1 % 33.9 % Expected dividend yield — % — % — %
Share-based Payment Arrangement, Activity	A summary of stock option activity follows: Number of Weighted- Weighted- Aggregate Intrinsic Value (1) Outstanding at December 31, 2020 1,933,899 $ 13.20 Granted 285,400 15.10 Exercised (1,035,434) 10.48 Forfeited or expired (38,433) 16.08 Outstanding at December 31, 2021 1,145,432 $ 16.03 7.4 $ 6,666 Exercisable at December 31, 2021 972,933 $ 16.16 7.2 $ 5,543 Vested or expected to vest at December 31, 2021 1,145,432 $ 16.03 7.4 $ 6,666 (1) Aggregate intrinsic value amounts shown in thousands.
Information Related to Stock Options Exercised	Information related to stock options exercised follows: (Dollars in thousands) 2021 2020 2019 Proceeds from the exercise of stock options $ 11,575 $ 756 $ 1,052 Intrinsic value of stock options exercised 11,314 867 750 Income tax benefit related to stock options exercised 2,602 182 158
Summary of Stock-Based Compensation Expense	A summary of amounts recorded and to be recorded for stock-based compensation related to stock options follows: (Dollars in thousands) 2021 2020 2019 Compensation expense recorded in Selling, general and administrative expenses $ 1,851 $ 2,304 $ 1,801 Deferred income tax benefits related to compensation expense 426 484 378 Total fair value of stock options vested 1,812 465 1,387 Unrecognized compensation cost 1,908 2,039 1,469 Expected weighted-average recognition period for unrecognized compensation, in years 1.1 1.8 2.2
Performance Share Units
Share-based Payment Arrangement, Activity	A summary of performance share unit activity follows: Number of Weighted- Outstanding at December 31, 2020 481,998 Granted 185,600 Earned (71,856) Forfeited or expired (53,144) Outstanding at December 31, 2021 542,598 1.0 Vested or expected to vest at December 31, 2021 542,598 1.0
Summary of Stock-Based Compensation Expense	A summary of amounts recorded and to be recorded for stock-based compensation related to performance share units follows: (Dollars in thousands) 2021 2020 2019 Compensation expense recorded in Selling, general and administrative expenses $ 626 $ 3,270 $ 3,607 Deferred income tax benefits related to compensation expense 144 773 757 Unrecognized compensation cost 3,747 3,417 2,730 Expected weighted-average recognition period for unrecognized compensation, in years 1.5 1.5 1.6

Restructuring and Cost Reduct_2

Restructuring and Cost Reduction Programs (Tables)	12 Months Ended
	Dec. 31, 2021
Restructuring and Related Activities [Abstract]
Summary of Charges Associated with Restructuring Programs by Major Type of Charges	The charges associated with these restructuring programs are summarized by major type below: (Dollars in thousands) Employee Other Costs Total Expected restructuring charges: Organizational Optimization Program $ 5,654 $ — $ 5,654 American Manufacturing Optimization Program — — — Global Optimization Program — — — Total expected restructuring charges $ 5,654 $ — $ 5,654 Restructuring charges incurred: Global Optimization Program $ 7,163 $ 3,792 $ 10,955 Charges incurred in 2019 $ 7,163 $ 3,792 $ 10,955 Organizational Optimization Program $ 2,980 $ — $ 2,980 American Manufacturing Optimization Program 1,040 — 1,040 Global Optimization Program 5,670 7,735 13,405 Charges incurred in 2020 $ 9,690 $ 7,735 $ 17,425 Organizational Optimization Program $ 6,834 $ — $ 6,834 American Manufacturing Optimization Program 3,637 — 3,637 Global Optimization Program — 3,939 3,939 Charges incurred in 2021 $ 10,471 $ 3,939 $ 14,410 Cumulative restructuring charges incurred: Organizational Optimization Program $ 9,814 $ — $ 9,814 American Manufacturing Optimization Program 4,677 — 4,677 Global Optimization Program 12,833 15,466 28,299 Cumulative restructuring charges incurred as of December 31, 2021 $ 27,324 $ 15,466 $ 42,790
Summary of Charges Associated with Restructuring Programs by Segments	The charges associated with the restructuring programs are summarized by segments below: (Dollars in thousands) Total 2021 2020 2019 Cumulative Functional Coatings $ 169 $ — $ 27 $ (5) $ 22 Color Solutions 99 106 101 124 331 Segment Total 268 106 128 119 353 Corporate Restructuring Charges 5,386 14,304 17,297 10,836 42,437 Total Restructuring Charges $ 5,654 $ 14,410 $ 17,425 $ 10,955 $ 42,790
Summary of Accruals Related to Restructuring and Optimization Programs	The activities and accruals related to our optimization programs are below: (Dollars in thousands) Employee Other Costs Total Balance at December 31, 2018 $ 1,011 $ 832 $ 1,843 Restructuring charges 7,163 3,792 10,955 Cash payments (6,987) (1,831) (8,818) Non-cash items (440) (1,301) (1,741) Balance at December 31, 2019 747 1,492 2,239 Restructuring charges 9,690 7,735 17,425 Cash payments (4,363) (4,526) (8,889) Non-cash items (564) (241) (805) Balance at December 31, 2020 5,510 4,460 9,970 Restructuring charges 10,471 3,939 14,410 Cash payments (7,626) (2,628) (10,254) Non-cash items — (1,129) (1,129) Balance at December 31, 2021 $ 8,355 $ 4,642 $ 12,997

Leases (Tables)

Leases (Tables)	12 Months Ended
	Dec. 31, 2021
Leases [Abstract]
Components of Lease Costs	The components of lease cost are shown below: (Dollars in thousands) 2021 2020 Income Statement Location Lease Cost Operating lease cost (1) $ 4,248 $ 4,716 Selling, general and administrative expenses Operating lease cost (2) 6,404 7,406 Cost of sales Finance lease cost Amortization of right-of-use assets 461 298 Cost of sales Interest of lease liabilities 45 33 Interest expense Net lease cost $ 11,158 $ 12,453 (1) Included in operating lease cost is $0.7 million and $0.9 million of short-term lease costs for the years ended December 31, 2021 and 2020, respectively, and $0.4 million and $0.4 million of variable lease costs for the years ended December 31, 2021 and 2020, respectively. (2) Included in operating lease cost is $2.8 million and $2.7 million of short-term lease costs for the years ended December 31, 2021 and 2020, respectively, and approximately zero variable lease costs for December 31, 2021 and $0.7 million of variable lease costs for 2020.
Supplemental Balance Sheet Information Related to Leases	Supplemental balance sheet information related to leases are shown below: (Dollars in thousands) 2021 2020 Balance Sheet Location Assets Operating leased assets $ 13,186 $ 15,446 Operating leased assets Finance leased assets (1) 1,184 1,410 Property, plant and equipment, net Total leased assets $ 14,370 $ 16,856 Liabilities Current Operating $ 4,325 $ 5,431 Accrued expenses and other current liabilities Finance 687 640 Loans payable and current portion of long-term debt Noncurrent Operating 8,849 10,064 Operating lease non-current liabilities Finance 1,810 2,271 Long-term debt, less current portion Total lease liabilities $ 15,671 $ 18,406 (1) Finance leases are net of accumulated depreciation of $3.5 million and $3.1 million for December 31, 2021 and 2020, respectively.
Supplemental Cash Flow Information Related to Leases	Supplemental cash flow information related to leases are shown below: (Dollars in thousands) 2021 2020 Cash paid for amounts included in the measurement of lease liabilities Operating cash flows from finance leases $ 45 $ 33 Operating cash flows from operating leases 7,014 7,959 Financing cash flows from finance leases 461 331 Leased assets obtained in exchange for new finance lease liabilities 301 961 Leased assets obtained in exchange for new operating lease liabilities 6,412 4,686 2021 Weighted-average remaining lease term (years) Operating leases 4.5 Finance leases 4.4 Weighted-average discount rate Operating leases 4.2 % Finance leases 4.5 %
Maturities of Lease Liabilities	Maturities of lease liabilities are shown below as of December 31, 2021: (Dollars in thousands) Finance Operating 2022 $ 778 $ 5,129 2023 699 3,325 2024 570 2,337 2025 465 1,823 2026 331 1,422 Thereafter 139 1,804 Net minimum lease payments 2,982 15,840 Less: interest (485) (2,667) Present value of lease liabilities $ 2,497 $ 13,173

Miscellaneous Expense (Income),

Miscellaneous Expense (Income), Net (Tables)	12 Months Ended
	Dec. 31, 2021
Other Income and Expenses [Abstract]
Components of Miscellaneous Expense (Income), Net	Components of Miscellaneous (income) expense, net follow: (Dollars in thousands) 2021 2020 2019 Pension (income) expense $ (31,919) $ 6,425 $ 14,845 Brazil value-added tax (7,481) — — Loss (gain) on sale of assets (461) 87 (1,412) Dividends/royalty from affiliates, net (192) (264) (529) Bank fees 1,602 1,498 1,798 Other, net 3,184 (2,174) (474) Contingent consideration adjustment — (67) (2,723) Argentina export tax matter — — 217 Total Miscellaneous (income) expense, net $ (35,267) $ 5,505 $ 11,722

Earnings Per Share (Tables)

Earnings Per Share (Tables)	12 Months Ended
	Dec. 31, 2021
Earnings Per Share [Abstract]
Calculations of Basic and Diluted Earnings Per Share	(Dollars in thousands, except per share amounts) 2021 2020 2019 Basic earnings per share computation: Income from continuing operations $ 73,342 $ 30,040 $ 34,826 Less: Net income attributable to noncontrolling interests from continuing operations 1,646 1,073 1,087 Net income attributable to Ferro Corporation from continuing operations 71,696 28,967 33,739 Income (loss) from discontinued operations, net of income taxes 77,199 14,003 (27,411) Less: Net income attributable to noncontrolling interests from discontinued operations 64 171 290 Net income (loss) attributable to Ferro Corporation from discontinued operations 77,135 13,832 (27,701) Net income attributable to Ferro Corporation common shareholders $ 148,831 $ 42,799 $ 6,038 Weighted-average common shares outstanding 82,711 82,232 82,083 Basic earnings per share from continuing operations attributable to Ferro Corporation common shareholders 0.86 0.35 0.41 Diluted earnings per share computation: Net income attributable to Ferro Corporation common shareholders $ 71,696 $ 28,967 $ 33,739 Adjustment for income (loss) from discontinued operations 77,135 13,832 (27,701) Net income attributable to Ferro Corporation common shareholders $ 148,831 $ 42,799 $ 6,038 Weighted-average common shares outstanding 82,711 82,232 82,083 Assumed exercise of stock options 557 272 407 Assumed satisfaction of restricted stock unit conditions 227 362 369 Assumed satisfaction of performance stock unit conditions 102 158 32 Weighted-average diluted shares outstanding 83,597 83,024 82,891 Diluted earnings per share from continuing operations attributable to Ferro Corporation common shareholders 0.86 0.35 0.41

Accumulated Other Comprehensi_2

Accumulated Other Comprehensive Loss (Tables)	12 Months Ended
	Dec. 31, 2021
Equity [Abstract]
Changes in Accumulated Other Comprehensive Loss by Component, Net of Tax	Changes in Accumulated other comprehensive loss by component, net of tax, were as follows: (Dollars in thousands) Postretirement Foreign Net Gain (Loss) Total Balance at December 31, 2018 $ 1,126 $ (103,190) $ (3,297) $ (105,361) Other comprehensive income (loss) before reclassifications, before tax — 6,269 (2,731) 3,538 Reclassification to earnings: Cash flow hedge income (loss), before tax — — (10,162) (10,162) Postretirement benefit liabilities income (loss), before tax 91 — — 91 Current period other comprehensive income (loss), before tax 91 6,269 (12,893) (6,533) Tax effect 11 654 (3,183) (2,518) Current period other comprehensive income (loss), net of tax 80 5,615 (9,710) (4,015) Balance at December 31, 2019 1,206 (97,575) (13,007) (109,376) Other comprehensive income (loss) before reclassifications, before tax — 24,980 (34,689) (9,709) Reclassification to earnings: Cash flow hedge income (loss), before tax — — 22,465 22,465 Postretirement benefit liabilities income (loss), before tax 2,146 — — 2,146 Current period other comprehensive income (loss), before tax 2,146 24,980 (12,224) 14,902 Tax effect 153 (2,113) (2,804) (4,764) Current period other comprehensive income (loss), net of tax 1,993 27,093 (9,420) 19,666 Balance at December 31, 2020 3,199 (70,482) (22,427) (89,710) Other comprehensive income (loss) before reclassifications, before tax — (85,676) 6,647 (79,029) Reclassification to earnings: Cash flow hedge income (loss), before tax — — 3,763 3,763 Postretirement benefit liabilities income (loss), before tax 216 — — 216 Currency translation reclassification to income on divestiture — 17,305 — 17,305 Amount reclassification to income (remote transaction) — — 11,012 11,012 Current period other comprehensive income (loss), before tax 216 (68,371) 21,422 (46,733) Tax effect 6 17 5,306 5,329 Current period other comprehensive income (loss), net of tax 210 (68,388) 16,116 (52,062) Balance at December 31, 2021 $ 3,409 $ (138,870) $ (6,311) $ (141,772)

Reporting for Segments (Tables)

Reporting for Segments (Tables)	12 Months Ended
	Dec. 31, 2021
Segment Reporting [Abstract]
Net Sales to External Customers by Segment	Net sales to external customers by segment are presented in the table below. Sales between segments were not material. (Dollars in thousands) 2021 2020 2019 Functional Coatings $ 732,063 $ 608,192 $ 644,783 Color Solutions 394,201 350,762 369,674 Total net sales $ 1,126,264 $ 958,954 $ 1,014,457
Segment's Gross Profit and Reconciliations to Income Before Income Taxes	Each segment’s gross profit and reconciliations to Income before income taxes are presented in the table below: (Dollars in thousands) 2021 2020 2019 Functional Coatings $ 218,619 $ 175,601 $ 192,668 Color Solutions 128,356 119,071 114,939 Other cost of sales (2,356) (916) 369 Total gross profit 344,619 293,756 307,976 Selling, general and administrative expenses 217,809 202,413 212,365 Restructuring and impairment charges 14,410 17,425 10,955 Other expense, net (157) 29,017 41,865 Income before income taxes $ 112,557 $ 44,901 $ 42,791
Summary of Segment's Expenditures for Long-Lived Assets	Each segment’s capital expenditures for long-lived assets are detailed below: (Dollars in thousands) 2021 2020 2019 Functional Coatings $ 13,826 $ 12,266 $ 46,304 Color Solutions 11,321 17,626 16,597 Total segment expenditures for long-lived assets 25,147 29,892 62,901 Unallocated corporate expenditures for long-lived assets 4,812 1,891 2,069 Total expenditures for long lived assets (1) $ 29,959 $ 31,783 $ 64,970 (1) Includes capital expenditures for discontinued operation of $1.1 million, $4.7 million and $10.0 million in 2021, 2020 and 2019, respectively, integrated within Functional Coatings.
Summary of Net Sales by Geographic Region	Net sales by geography are as follows: (Dollars in thousands) 2021 2020 2019 United States $ 374,692 $ 341,461 $ 359,267 Germany 180,001 143,861 149,270 Other international 571,571 473,632 505,920 Total net sales $ 1,126,264 $ 958,954 $ 1,014,457
Summary of Long-Lived Assets by Geographic Region	Long-lived assets that consist of property, plant, and equipment by geography at December 31, 2021 and 2020 are as follows: (Dollars in thousands) 2021 2020 United States $ 72,140 $ 69,088 Mexico 64,903 58,503 Spain 37,744 43,811 Germany 36,349 39,733 Columbia 30,597 30,888 Other international 80,023 88,022 Total long-lived assets $ 321,756 $ 330,045

Unconsolidated Affiliates Acc_2

Unconsolidated Affiliates Accounted For Under the Equity Method (Tables)	12 Months Ended
	Dec. 31, 2021
Related Party Transactions [Abstract]
Summarized Condensed Income Statement	(Dollars in thousands) 2021 2020 2019 Net sales $ 11,989 $ 12,444 $ 16,563 Gross profit 1,893 1,150 2,507 Income (loss) from continuing operations 287 (1,362) (861) Net income (loss) 229 (1,090) (689)
Summarized Balance Sheet	(Dollars in thousands) 2021 2020 Current assets $ 12,612 $ 12,353 Non-current assets 3,426 3,644 Current liabilities (2,839) (1,938) Non-current liabilities (155) (27)
Transactions with Equity-Method Investees	We had the following transactions with our equity-method investees: (Dollars in thousands) 2021 2020 2019 Sales $ 4,226 $ 11,013 $ 7,308 Purchases 9 146 316 Dividends and interest received 192 144 154 Commission and royalties received — 108 363 Commissions and royalties paid 10 12 11

Our Business (Details)

Our Business (Details)	12 Months Ended
	Dec. 31, 2021unit	May 11, 2021$ / shares
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Business units | unit	4
Cash that will be received from share of restricted stock converted into the right (in USD per share) | $ / shares		$ 22

Significant Accounting Polici_4

Significant Accounting Policies (Narrative) (Details) $ in Millions	12 Months Ended
	Dec. 31, 2021USD ($)entitycustomer	Dec. 31, 2020USD ($)	Dec. 31, 2019USD ($)
Significant Accounting Policies [Line Items]
Number of legal entities consolidated | entity	3
Expenditures for company-sponsored research and development activities | $	$ 32.6	$ 35.6	$ 41
Number of customers representing greater than 10% of net sales or accounts receivable | customer	0
Percentage of net sales or accounts receivable to be considered a major customer	10.00%
Minimum | Software and Software Development Costs
Significant Accounting Policies [Line Items]
Property, plant and equipment, useful life	1 year
Minimum | Three Entities
Significant Accounting Policies [Line Items]
Non-controlling interest ownerships in consolidated entities	24.60%
Maximum | Software and Software Development Costs
Significant Accounting Policies [Line Items]
Property, plant and equipment, useful life	10 years
Maximum | Three Entities
Significant Accounting Policies [Line Items]
Non-controlling interest ownerships in consolidated entities	41.00%

Significant Accounting Polici_5

Significant Accounting Policies (Detailed Information about Allowance for Doubtful Accounts) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Accounting Policies [Abstract]
Allowance for doubtful accounts	$ 1,960	$ 2,502	$ 1,756
Bad debt expense	$ 692	$ 255	$ 455

Significant Accounting Polici_6

Significant Accounting Policies (Estimated Lives of Prperty, Plant and Equipment) (Details)	12 Months Ended
	Dec. 31, 2021
Minimum | Buildings
Property, Plant and Equipment [Line Items]
Property, plant and equipment, useful life	20 years
Minimum | Machinery and equipment
Property, Plant and Equipment [Line Items]
Property, plant and equipment, useful life	5 years
Maximum | Buildings
Property, Plant and Equipment [Line Items]
Property, plant and equipment, useful life	40 years
Maximum | Machinery and equipment
Property, Plant and Equipment [Line Items]
Property, plant and equipment, useful life	15 years

Revenue (Details)

Revenue (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Disaggregation of Revenue [Line Items]
Total net sales	$ 1,126,264	$ 958,954	$ 1,014,457
Functional Coatings
Disaggregation of Revenue [Line Items]
Total net sales	732,063	608,192	644,783
Color Solutions
Disaggregation of Revenue [Line Items]
Total net sales	394,201	350,762	369,674
EMEA
Disaggregation of Revenue [Line Items]
Total net sales	486,842	396,263	432,132
EMEA | Functional Coatings
Disaggregation of Revenue [Line Items]
Total net sales	342,396	267,041	295,198
EMEA | Color Solutions
Disaggregation of Revenue [Line Items]
Total net sales	144,446	129,222	136,934
Americas
Disaggregation of Revenue [Line Items]
Total net sales	472,218	421,743	443,319
Americas | Functional Coatings
Disaggregation of Revenue [Line Items]
Total net sales	266,745	240,424	248,064
Americas | Color Solutions
Disaggregation of Revenue [Line Items]
Total net sales	205,473	181,319	195,255
Asia Pacific
Disaggregation of Revenue [Line Items]
Total net sales	167,204	140,948	139,006
Asia Pacific | Functional Coatings
Disaggregation of Revenue [Line Items]
Total net sales	122,922	100,727	101,521
Asia Pacific | Color Solutions
Disaggregation of Revenue [Line Items]
Total net sales	$ 44,282	$ 40,221	$ 37,485

Discontinued Operations (Narrat

Discontinued Operations (Narrative) (Details) - USD ($) $ in Thousands	Feb. 25, 2021	Dec. 31, 2021	Mar. 31, 2021	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Tile Coatings Business
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Cash from sale of business		$ 13,100
Gain on sale of business, net				$ 94,800
Discontinued Operations | Tile Coatings Business
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Gain on sale of business, net				$ 94,832	$ 0	$ 0
Tile Coatings Business
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Cash from sale of business	$ 460,000
Net proceeds after expenses			$ 402,100

Discontinued Operations (Summar

Discontinued Operations (Summary of Statements of Operations as Discontinued Operations) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Income (loss) from discontinued operations, net of income taxes	$ 77,199	$ 14,003	$ (27,411)
Less: Net income attributable to noncontrolling interests	64	171	290
Net income (loss) attributable to Tile Coatings business	77,135	13,832	(27,701)
Tile Coatings Business
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Gain on sale of business, net	(94,800)
Discontinued Operations | Tile Coatings Business
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Net sales	83,579	440,501	491,493
Cost of sales	60,634	327,505	388,959
Gross profit	22,945	112,996	102,534
Selling, general and administrative expenses	20,327	72,033	71,591
Restructuring and impairment charges	303	2,290	44,378
Interest expense	1,682	10,650	11,556
Interest earned	(189)	(184)	(122)
Foreign currency losses (gains), net	363	6,608	(2,397)
Gain on sale of business, net	(94,832)	0	0
Miscellaneous expense, net	251	2,281	2,127
Income (loss) from discontinued operations before income taxes	95,040	19,318	(24,599)
Income tax expense	17,841	5,315	2,812
Income (loss) from discontinued operations, net of income taxes	77,199	14,003	(27,411)
Less: Net income attributable to noncontrolling interests	64	171	290
Net income (loss) attributable to Tile Coatings business	$ 77,135	$ 13,832	$ (27,701)

Discontinued Operations (Summ_2

Discontinued Operations (Summary of Assets and Liabilities Classified as Held-for-Sale) (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Cash and cash equivalents	$ 0	$ 8,200	$ 8,200
Current assets held-for-sale	0	307,854
Deferred income taxes	98,199	115,962
Non-current assets held-for-sale	0	154,207
Current liabilities held-for-sale	0	107,545
Non-current liabilities held-for-sale	$ 0	71,149
Tile Coatings Business | Discontinued Operations, Held-For-Sale
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Cash and cash equivalents		8,200
Accounts receivable, net		211,548
Inventories		84,239
Other receivables		1,630
Other current assets		2,237
Current assets held-for-sale		307,854
Property, plant and equipment, net		93,430
Amortizable intangible assets, net		42,126
Deferred income taxes		12,267
Other non-current assets		6,384
Non-current assets held-for-sale		154,207
Total assets held-for-sale		462,061
Loans payable and current portion of long-term debt		3,927
Accounts payable		85,308
Accrued payrolls		5,946
Accrued expenses and other current liabilities		12,364
Current liabilities held-for-sale		107,545
Long-term debt, less current portion		56,359
Postretirement and pension liabilities		8,119
Other non-current liabilities		6,671
Non-current liabilities held-for-sale		71,149
Total liabilities held-for-sale		$ 178,694

Discontinued Operations (Summ_3

Discontinued Operations (Summary of Cash Flow Data Related to Discontinued Operations) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Non-cash investing activities - capital expenditures, consisting of unpaid capital expenditure liabilities at year end	$ 3,800	$ 5,300	$ 3,500
Tile Coatings Business
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Gain on sale of business, net	(94,800)
Tile Coatings Business | Discontinued Operations
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Depreciation	0	0	11,264
Amortization of intangible assets	0	0	3,192
Capital expenditures	(1,074)	(4,713)	(9,965)
Gain on sale of business, net	(94,832)	0	0
Non-cash operating activities - goodwill impairment	0	0	42,515
Non-cash operating activities - restructuring	0	1,080	127
Non-cash investing activities - capital expenditures, consisting of unpaid capital expenditure liabilities at year end	$ 0	$ 1,493	$ 1,087

Inventories (Narrative) (Detail

Inventories (Narrative) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Inventory Disclosure [Abstract]
Terms of precious metals consignment agreements, maximum	1 year
Fees under precious metals consignment agreements	$ 2.8	$ 2.9	$ 3.1
Fair value of precious metals on hand under consignment agreements	$ 95.4	$ 87.2

Inventories (Inventories) (Deta

Inventories (Inventories) (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Inventory Disclosure [Abstract]
Raw materials	$ 80,519	$ 81,344
Work in process	45,653	48,770
Finished goods	136,497	130,218
Total inventories	$ 262,669	$ 260,332

Property, Plant and Equipment_2

Property, Plant and Equipment (Schedule of Property, Plant and Equipment) (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Property, Plant and Equipment [Line Items]
Total property, plant and equipment	$ 775,075	$ 805,027
Total accumulated depreciation	(453,319)	(474,982)
Property, plant and equipment, net	321,756	330,045
Land
Property, Plant and Equipment [Line Items]
Total property, plant and equipment	37,237	39,500
Buildings
Property, Plant and Equipment [Line Items]
Total property, plant and equipment	222,391	201,400
Machinery and equipment
Property, Plant and Equipment [Line Items]
Total property, plant and equipment	485,030	487,327
Construction in progress
Property, Plant and Equipment [Line Items]
Total property, plant and equipment	$ 30,417	$ 76,800

Property, Plant and Equipment_3

Property, Plant and Equipment (Narrative) (Details) - USD ($)	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Property, Plant and Equipment [Line Items]
Depreciation expense	$ 28,900,000	$ 27,800,000	$ 28,300,000
Unpaid capital expenditure liabilities	3,800,000	$ 5,300,000	3,500,000
Impairment charges related to property, plant and equipment	$ 0
Discontinued Operations
Property, Plant and Equipment [Line Items]
Depreciation expense			$ 11,300,000

Goodwill and Other Intangible_3

Goodwill and Other Intangible Assets (Details and Activity of Goodwill by Segment) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Acquired Finite-Lived Intangible Assets [Line Items]
Goodwill, net at beginning	$ 175,351	$ 172,212
Foreign currency adjustments	(3,507)	3,139
Goodwill, net at ending	171,844	175,351
Functional Coatings
Acquired Finite-Lived Intangible Assets [Line Items]
Goodwill, net at beginning	123,570	121,905
Foreign currency adjustments	(2,791)	1,665
Goodwill, net at ending	120,779	123,570
Color Solutions
Acquired Finite-Lived Intangible Assets [Line Items]
Goodwill, net at beginning	51,781	50,307
Foreign currency adjustments	(716)	1,474
Goodwill, net at ending	$ 51,065	$ 51,781

Goodwill and Other Intangible_4

Goodwill and Other Intangible Assets (Schedule of Impairment of Goodwill) (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Goodwill and Intangible Assets Disclosure [Abstract]
Goodwill, gross	$ 230,311	$ 233,818
Accumulated impairment losses	(58,467)	(58,467)
Goodwill, net	$ 171,844	$ 175,351	$ 172,212

Goodwill and Other Intangible_5

Goodwill and Other Intangible Assets (Narrative) (Details) - USD ($)	3 Months Ended			12 Months Ended
	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Goodwill and Other Intangible Assets [Line Items]
Amortization expense related to amortizable intangible assets				$ 11,300,000	$ 12,000,000	$ 13,000,000
Expected amortization expense for amortizable intangible assets for 2021				11,300,000
Expected amortization expense for amortizable intangible assets for 2022				11,100,000
Expected amortization expense for amortizable intangible assets for 2023				11,000,000
Expected amortization expense for amortizable intangible assets for 2024				10,800,000
Expected amortization expense for amortizable intangible assets for 2025				10,600,000
Continuing Operations
Goodwill and Other Intangible Assets [Line Items]
Goodwill impairment charge				$ 0	$ 0
Quimicer, FMU And Gardenia
Goodwill and Other Intangible Assets [Line Items]
Goodwill impairment charge		$ 3,100,000	$ 5,900,000
Tile Coatings Business
Goodwill and Other Intangible Assets [Line Items]
Goodwill impairment charge	$ 33,500,000					$ 42,500,000

Goodwill And Other Intangible_6

Goodwill And Other Intangible Assets (Details Of Amortizable Intangible Assets) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Amortization Of Intangible Assets [Line Items]
Total gross amortizable intangible assets	$ 189,793	$ 192,919
Total accumulated amortization	(95,879)	(86,617)
Amortizable intangible assets, net	93,914	106,302
Patents
Amortization Of Intangible Assets [Line Items]
Total gross amortizable intangible assets	5,465	5,589
Total accumulated amortization	(5,444)	(5,566)
Land rights
Amortization Of Intangible Assets [Line Items]
Total gross amortizable intangible assets	3,257	3,173
Total accumulated amortization	(1,762)	(1,630)
Technology/know-how and other
Amortization Of Intangible Assets [Line Items]
Total gross amortizable intangible assets	116,154	116,015
Total accumulated amortization	(67,638)	(61,104)
Customer relationships
Amortization Of Intangible Assets [Line Items]
Total gross amortizable intangible assets	64,917	68,142
Total accumulated amortization	$ (21,035)	$ (18,317)
Minimum | Patents
Amortization Of Intangible Assets [Line Items]
Estimated Economic Life	10 years
Minimum | Land rights
Amortization Of Intangible Assets [Line Items]
Estimated Economic Life	20 years
Minimum | Technology/know-how and other
Amortization Of Intangible Assets [Line Items]
Estimated Economic Life	1 year
Minimum | Customer relationships
Amortization Of Intangible Assets [Line Items]
Estimated Economic Life	10 years
Maximum | Patents
Amortization Of Intangible Assets [Line Items]
Estimated Economic Life	16 years
Maximum | Land rights
Amortization Of Intangible Assets [Line Items]
Estimated Economic Life	40 years
Maximum | Technology/know-how and other
Amortization Of Intangible Assets [Line Items]
Estimated Economic Life	30 years
Maximum | Customer relationships
Amortization Of Intangible Assets [Line Items]
Estimated Economic Life	20 years

Goodwill And Other Intangible_7

Goodwill And Other Intangible Assets (Schedule Of Indefinite-Lived Intangible Assets) (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Trade names and trademarks
Indefinite-lived Intangible Assets [Line Items]
Indefinite-lived intangible assets	$ 12,763	$ 13,198

Debt and Other Financing (Sched

Debt and Other Financing (Schedule of Loans Payable and Current Portion of Long-Term Debt) (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Short-term Debt [Line Items]
Loans payable and current portion of long-term debt	$ 8,964	$ 8,839
Current portion of long-term debt
Short-term Debt [Line Items]
Loans payable and current portion of long-term debt	$ 8,964	$ 8,839

Debt and Other Financing (Summa

Debt and Other Financing (Summary of Long-Term Debt) (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Debt Instrument [Line Items]
Total long-term debt	$ 260,274	$ 800,348
Current portion of long-term debt	(8,964)	(8,839)
Long-term debt, less current portion	251,310	791,509
Unamortized debt issuance costs	800
Term loan facility, net of unamortized issuance costs, maturing 2024
Debt Instrument [Line Items]
Total long-term debt	253,450	793,731
Capital lease obligations
Debt Instrument [Line Items]
Total long-term debt	2,497	2,911
Other notes
Debt Instrument [Line Items]
Total long-term debt	$ 4,327	$ 3,706

Debt and Other Financing (Annua

Debt and Other Financing (Annual Maturities of Long-term Debt) (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Debt Disclosure [Abstract]
2022	$ 9,056
2023	8,977
2024	238,645
2025	758
2026	624
Thereafter	3,499
Total maturities of long-term debt	261,559
Unamortized issuance costs on Term loan facility	(800)
Imputed interest and executory costs on capitalized lease obligations	(485)
Total long-term debt	$ 260,274	$ 800,348

Debt and Other Financing (Narra

Debt and Other Financing (Narrative) (Details)	Feb. 25, 2021USD ($)	Dec. 31, 2021USD ($)	Dec. 31, 2021USD ($)	Dec. 31, 2020USD ($)	Dec. 31, 2019USD ($)	Dec. 31, 2021EUR (€)	Apr. 25, 2018USD ($)
Debt Instrument [Line Items]
Loss on extinguishment of debt	$ 2,000,000	$ 300,000	$ (2,302,000)	$ 0	$ 0
Accrued expenses and other current liabilities		44,500,000	$ 44,500,000	36,000,000
Receivable Sales Programs
Debt Instrument [Line Items]
Maturity date			Dec. 31, 2023
Debt amount issued | €						€ 85,000,000
Outstanding amount		44,400,000	$ 44,400,000	24,500,000
Percentage of cash receivable of sold receivable			81.00%
Other receivables		7,700,000	$ 7,700,000	9,800,000
Other Financing Arrangements
Debt Instrument [Line Items]
Borrowings available		25,000,000	25,000,000	25,000,000
Maximum available in form of cash or letters of credit		$ 25,000,000	25,000,000	28,100,000
Amended Credit Facility | Maximum
Debt Instrument [Line Items]
Additional commitments under the revolving line of credit or term loans			$ 250,000,000
Amended Credit Facility | Secured Term Loan Facility | Fed Funds Effective Rate Overnight Index Swap Rate
Debt Instrument [Line Items]
Debt instrument, basis spread on variable rate			0.50%
Amended Credit Facility | Secured Term Loan Facility | London Interbank Offered Rate (LIBOR)
Debt Instrument [Line Items]
Applicable margin percentage		2.25%	2.25%			2.25%
Amended Credit Facility | Secured Term Loan Facility | London Interbank Offered Rate (LIBOR) | Minimum
Debt Instrument [Line Items]
Debt instrument, basis spread on variable rate			0.00%
Amended Credit Facility | Secured Term Loan Facility | London Interbank Offered Rate (LIBOR) | Maximum
Debt Instrument [Line Items]
Debt instrument, basis spread on variable rate			1.00%
Amended Credit Facility | Secured Term Loan Facility | Base Rate
Debt Instrument [Line Items]
Applicable margin percentage		1.25%	1.25%			1.25%
2018 Revolving Credit Facility
Debt Instrument [Line Items]
Long-term line of credit		$ 0	$ 0	0
2018 Revolving Credit Facility | Fed Funds Effective Rate Overnight Index Swap Rate
Debt Instrument [Line Items]
Debt instrument, basis spread on variable rate			0.50%
2018 Revolving Credit Facility | London Interbank Offered Rate (LIBOR) | Minimum
Debt Instrument [Line Items]
Debt instrument, basis spread on variable rate			0.00%
Applicable margin percentage		1.50%	1.50%			1.50%
2018 Revolving Credit Facility | London Interbank Offered Rate (LIBOR) | Maximum
Debt Instrument [Line Items]
Debt instrument, basis spread on variable rate			1.00%
Applicable margin percentage		2.50%	2.50%			2.50%
2018 Revolving Credit Facility | Base Rate | Minimum
Debt Instrument [Line Items]
Applicable margin percentage		0.50%	0.50%			0.50%
2018 Revolving Credit Facility | Base Rate | Maximum
Debt Instrument [Line Items]
Applicable margin percentage		1.50%	1.50%			1.50%
Revolving Credit Facility | London Interbank Offered Rate (LIBOR) | Minimum
Debt Instrument [Line Items]
Debt instrument, basis spread on variable rate			0.00%
Secured Debt | Amended Credit Facility
Debt Instrument [Line Items]
Debt facility amount							$ 500,000,000
Maturity date			Feb. 14, 2023
Secured Debt | Amended Credit Facility | U.S. Subsidiaries
Debt Instrument [Line Items]
Stock pledged as collateral, percentage			100.00%
Secured Debt | Amended Credit Facility | Foreign Subsidiaries
Debt Instrument [Line Items]
Stock pledged as collateral, percentage			65.00%
Secured Debt | Amended Credit Facility | Secured Term Loan Facility $355 Million
Debt Instrument [Line Items]
Maturity date			Feb. 14, 2024
Debt amount issued							355,000,000
Secured Debt | Amended Credit Facility | Secured Term Loan Facility $235 Million
Debt Instrument [Line Items]
Maturity date			Feb. 14, 2024
Debt amount issued							235,000,000
Secured Debt | Amended Credit Facility | Secured Term Loan Facility $230 Million
Debt Instrument [Line Items]
Maturity date			Feb. 14, 2024
Debt amount issued							$ 230,000,000
Secured Debt | Amended Credit Facility | Tranche B-1 Loans
Debt Instrument [Line Items]
Debt facility amount		$ 110,100,000	$ 110,100,000	$ 345,200,000
Debt stated interest rate		2.47%	2.47%	2.50%		2.47%
Outstanding amount	188,300,000	$ 43,300,000	$ 43,300,000
Secured Debt | Amended Credit Facility | Tranche B-1 Loans | Interest rate swaps
Debt Instrument [Line Items]
Debt stated interest rate		3.58%	3.58%	3.55%		3.58%
Secured Debt | Amended Credit Facility | Tranche B-2 Loans
Debt Instrument [Line Items]
Debt facility amount		$ 72,900,000	$ 72,900,000	$ 228,500,000
Debt stated interest rate		2.47%	2.47%	2.50%		2.47%
Outstanding amount	124,700,000	$ 28,700,000	$ 28,700,000
Secured Debt | Amended Credit Facility | Tranche B-3 Loans
Debt Instrument [Line Items]
Debt facility amount		$ 71,300,000	$ 71,300,000	$ 223,700,000
Debt stated interest rate		2.47%	2.47%	2.50%		2.47%
Outstanding amount	122,000,000	$ 28,000,000	$ 28,000,000
Secured Debt | Amended Credit Facility | Tranche B-1, B-2, And B-3
Debt Instrument [Line Items]
Borrowings available		0	0	$ 0
Pay down amount	$ 435,000,000	100,000,000
Secured Debt | 2018 Revolving Credit Facility
Debt Instrument [Line Items]
Borrowings available		$ 496,100,000	$ 496,100,000	$ 495,800,000
Secured Term Loan | Amended Credit Facility
Debt Instrument [Line Items]
Equal quarterly installments in an amount equal to percentage of the original principal amount of the term loans			0.25%

Debt and Other Financing (Sch_2

Debt and Other Financing (Schedule of Trade Accounts Receivable in International Receivable Sales Programs) (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Debt Instrument [Line Items]
Trade accounts receivable sold to financial institutions	$ 618,646	$ 340,516
Cash proceeds from financial institutions	499,635	$ 241,937
Tile Coatings Business
Debt Instrument [Line Items]
Cash proceeds from financial institutions	$ 47,300

Financial Instruments (Schedule

Financial Instruments (Schedule of Financial Instruments Assets (Liabilities) Measured at Fair Value) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Financial Instruments And Fair Value Measurements [Line Items]
Cash and cash equivalents, carrying amount	$ 71,493	$ 174,077
Long-term debt, carrying amount	(260,274)	(800,348)
Foreign currency forward contracts, net, carrying amount	(1,367)	2,019
Cash and cash equivalents, fair value	71,493	174,077
Foreign currency forward contracts, net, fair value	(1,367)	2,019
Unamortized debt issuance costs	800
Cross-currency swaps
Financial Instruments And Fair Value Measurements [Line Items]
Cross currency swaps-assets, carrying amount		(5,162)
Cross currency swaps-liabilities, carrying amount	765
Cross currency swaps, fair value	765
Cross currency swaps, fair value		(5,162)
Interest rate swaps
Financial Instruments And Fair Value Measurements [Line Items]
Interest rate swaps-liabilities, carrying amount	(4,206)	(24,694)
Interest rate swaps-liabilities, fair value	(4,206)	(24,694)
Term Loan Facility - Amended Credit Facility
Financial Instruments And Fair Value Measurements [Line Items]
Long-term debt, carrying amount	(253,450)
Long-term debt, fair value	(252,815)
Unamortized debt issuance costs	800	3,700
Term Loan Facility - Credit Facility
Financial Instruments And Fair Value Measurements [Line Items]
Long-term debt, carrying amount		(793,731)
Long-term debt, fair value		(783,143)
Other long-term notes payable
Financial Instruments And Fair Value Measurements [Line Items]
Long-term debt, carrying amount	(4,327)	(3,706)
Long-term debt, fair value	(2,681)	(1,887)
Level 1
Financial Instruments And Fair Value Measurements [Line Items]
Cash and cash equivalents, fair value	71,493	174,077
Foreign currency forward contracts, net, fair value	0	0
Level 1 | Cross-currency swaps
Financial Instruments And Fair Value Measurements [Line Items]
Cross currency swaps, fair value	0
Cross currency swaps, fair value		0
Level 1 | Interest rate swaps
Financial Instruments And Fair Value Measurements [Line Items]
Interest rate swaps-liabilities, fair value	0	0
Level 1 | Term Loan Facility - Amended Credit Facility
Financial Instruments And Fair Value Measurements [Line Items]
Long-term debt, fair value	0
Level 1 | Term Loan Facility - Credit Facility
Financial Instruments And Fair Value Measurements [Line Items]
Long-term debt, fair value		0
Level 1 | Other long-term notes payable
Financial Instruments And Fair Value Measurements [Line Items]
Long-term debt, fair value	0	0
Level 2
Financial Instruments And Fair Value Measurements [Line Items]
Cash and cash equivalents, fair value	0	0
Foreign currency forward contracts, net, fair value	(1,367)	2,019
Level 2 | Cross-currency swaps
Financial Instruments And Fair Value Measurements [Line Items]
Cross currency swaps, fair value	765
Cross currency swaps, fair value		(5,162)
Level 2 | Interest rate swaps
Financial Instruments And Fair Value Measurements [Line Items]
Interest rate swaps-liabilities, fair value	(4,206)	(24,694)
Level 2 | Term Loan Facility - Amended Credit Facility
Financial Instruments And Fair Value Measurements [Line Items]
Long-term debt, fair value	(252,815)
Level 2 | Term Loan Facility - Credit Facility
Financial Instruments And Fair Value Measurements [Line Items]
Long-term debt, fair value		(783,143)
Level 2 | Other long-term notes payable
Financial Instruments And Fair Value Measurements [Line Items]
Long-term debt, fair value	(2,681)	(1,887)
Level 3
Financial Instruments And Fair Value Measurements [Line Items]
Cash and cash equivalents, fair value	0	0
Foreign currency forward contracts, net, fair value	0	0
Level 3 | Cross-currency swaps
Financial Instruments And Fair Value Measurements [Line Items]
Cross currency swaps, fair value	0
Cross currency swaps, fair value		0
Level 3 | Interest rate swaps
Financial Instruments And Fair Value Measurements [Line Items]
Interest rate swaps-liabilities, fair value	0	0
Level 3 | Term Loan Facility - Amended Credit Facility
Financial Instruments And Fair Value Measurements [Line Items]
Long-term debt, fair value	0
Level 3 | Term Loan Facility - Credit Facility
Financial Instruments And Fair Value Measurements [Line Items]
Long-term debt, fair value		0
Level 3 | Other long-term notes payable
Financial Instruments And Fair Value Measurements [Line Items]
Long-term debt, fair value	$ 0	$ 0

Financial Instruments (Narrativ

Financial Instruments (Narrative) (Details) - USD ($) $ in Thousands	1 Months Ended		3 Months Ended		12 Months Ended
	Dec. 31, 2021	Nov. 30, 2021	Dec. 31, 2021	Jun. 30, 2018	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Payments of debt issuance costs				$ 50,000
Amount reclassified from AOCL to Interest expense of remote transaction				$ 5,700	$ 4,500
Payments to settle derivatives termination					3,500
Interest expense					28,166	$ 21,880	$ 24,302
Notional amount	$ 319,900		$ 319,900		319,900	494,200
Amount received from the counterparty to settle the termination portion of derivative		$ 1,600
Gain (loss) from the change in fair value of financial instruments					$ 5,500	$ 6,600	$ (2,500)
Interest rate swaps
Term loan facility paid-off amount			50,000
Payments to settle derivatives termination	5,300	5,400
Interest expense			300
Interest rate swaps | Cash Flow Hedging
Derivative, maturity date					Feb. 14, 2024
Notional amount	102,700		102,700		$ 102,700
Net loss to be reclassified during next 12 months, net	4,300		4,300		4,300
Loss on interest rate derivative instruments not designated as hedging instruments					(300)
Cross-currency swaps
Interest expense			100
Cross-currency swaps | Cash Flow Hedging
Notional amount	$ 12,800		$ 12,800		12,800
Amount reclassified from AOCL to Interest expense of remaining cross-currency swap		$ 900
Gain on foreign currency fair value hedging instruments					$ 100

Financial Instruments (Schedu_2

Financial Instruments (Schedule of Gain (Loss) Recognized in AOCI and the Amount of Gain (Loss) Reclassified Into Earnings) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Interest expense | Cash Flow Hedging
Amount of (Gain) Loss Reclassified from AOCL into Income	$ (8,150)	$ (2,620)
Foreign currency losses, net | Cash Flow Hedging
Amount of (Gain) Loss Reclassified from AOCL into Income	4,387	(19,845)
Interest rate swaps | Interest expense | Cash Flow Hedging
Amount of Gain (Loss) Recognized in AOCL	2,490	(16,274)
Amount of (Gain) Loss Reclassified from AOCL into Income	(7,864)	(4,757)
Cross-currency swaps | Interest expense
Amount of Gain (Loss) Recognized in AOCL	0	(7,655)
Amount of (Gain) Loss Reclassified from AOCL into Income	0	1,468
Cross-currency swaps | Interest expense | Cash Flow Hedging
Amount of Gain (Loss) Recognized in AOCL	4,157	(18,415)
Amount of (Gain) Loss Reclassified from AOCL into Income	(286)	2,137
Cross-currency swaps | Foreign currency losses, net | Cash Flow Hedging
Amount of (Gain) Loss Reclassified from AOCL into Income	$ 4,387	$ (19,845)

Financial Instruments (Effect o

Financial Instruments (Effect on Derivative Instruments on Consolidated Statements of Operations) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Interest expense
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gain (Loss) Recognized in Earnings	$ 28,166	$ 21,880
Foreign currency losses, net
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gain (Loss) Recognized in Earnings	5,480	3,627
Interest rate swaps | Interest expense | Not Designated as Hedging Instrument
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gain (Loss) Recognized in Earnings	(262)	0	$ 0
Cross-currency swaps | Interest expense | Not Designated as Hedging Instrument
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gain (Loss) Recognized in Earnings	120	0	0
Foreign currency forward contracts | Foreign currency losses, net | Not Designated as Hedging Instrument
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gain (Loss) Recognized in Earnings	$ (5,523)	$ 6,589	$ (2,462)

Financial Instruments (Gain (Lo

Financial Instruments (Gain (Loss) on Net Investment Hedges Recognized in AOCI, Amount Reclassified Into Earnings and Gain Recognized in Income on Derivative) (Details) - Cross-currency swaps - Interest expense - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Amount of Gain (Loss) Recognized in AOCL	$ 0	$ (7,655)
Amount of (Gain) Loss Reclassified from AOCL into Income	$ 0	$ 1,468

Financial Instruments (Fair Val

Financial Instruments (Fair Value of Derivative Instruments on Consolidated Balance Sheets) (Details) - Not Designated as Hedging Instrument - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Other current assets | Cross-currency swaps
Derivatives, Fair Value [Line Items]
Asset derivatives	$ 62	$ 9
Other current assets | Foreign currency forward contracts
Derivatives, Fair Value [Line Items]
Asset derivatives	205	2,649
Other non-current assets | Cross-currency swaps
Derivatives, Fair Value [Line Items]
Asset derivatives	703	0
Accrued expenses and other current liabilities | Interest rate swaps
Derivatives, Fair Value [Line Items]
Liability derivatives	(2,442)	(8,436)
Accrued expenses and other current liabilities | Cross-currency swaps
Derivatives, Fair Value [Line Items]
Liability derivatives	0	(67)
Accrued expenses and other current liabilities | Foreign currency forward contracts
Derivatives, Fair Value [Line Items]
Liability derivatives	(1,572)	(630)
Other non-current liabilities | Interest rate swaps
Derivatives, Fair Value [Line Items]
Liability derivatives	(1,764)	(16,258)
Other non-current liabilities | Cross-currency swaps
Derivatives, Fair Value [Line Items]
Liability derivatives	$ 0	$ (5,104)

Income Taxes (Earnings Before I

Income Taxes (Earnings Before Income Tax Expense) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Income Tax Disclosure [Abstract]
U.S.	$ 10,389	$ 7,961	$ 18,709
Foreign	102,168	36,940	24,082
Income before income taxes	$ 112,557	$ 44,901	$ 42,791

Income Taxes (Income Tax Expens

Income Taxes (Income Tax Expense from Continuing Operations) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Current:
U.S. federal	$ 5,902	$ (3,298)	$ 475
Foreign	25,794	20,238	18,204
State and local	23	104	168
Total current	31,719	17,044	18,847
Deferred:
U.S. federal	4,229	3,935	(3,832)
Foreign	2,280	(6,856)	(8,340)
State and local	987	738	1,290
Total deferred	7,496	(2,183)	(10,882)
Total income tax expense (benefit)	$ 39,215	$ 14,861	$ 7,965

Income Taxes (Income Tax Expe_2

Income Taxes (Income Tax Expense (Benefit) Allocated Directly to Ferro Corporation Shareholders' Equity) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Income Tax Disclosure [Abstract]
Interest rate swaps	$ 5,306	$ (2,848)	$ (3,210)
Postretirement benefit liability adjustments	6	153	11
Net investment hedge	0	(2,113)	654
Foreign currency translations	17	44	27
Total income tax expense (benefit) allocated to Ferro Corporation shareholders' equity	$ 5,329	$ (4,764)	$ (2,518)

Income Taxes (Reconciliation of

Income Taxes (Reconciliation of U.S. Federal Statutory Income Tax Rate and Effective Tax Rate) (Details)	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Income Tax Disclosure [Abstract]
U.S. federal statutory income tax rate	21.00%	21.00%	21.00%
Foreign tax rate difference	7.70%	7.20%	9.80%
Foreign withholding taxes	4.20%	0.70%	1.30%
Foreign currency	1.70%	4.10%	1.40%
Non-deductible expenses	1.50%	4.50%	4.40%
Tax rate changes	1.00%	1.10%	0.90%
Global intangible low-taxed income, net	0.80%	2.50%	2.80%
State taxes	0.80%	1.00%	1.30%
Net adjustment of prior year accrual	0.50%	1.30%	(5.00%)
Adjustment of valuation allowances	0.50%	(0.90%)	(16.10%)
Goodwill dispositions, impairments and amortization	(0.10%)	0.00%	(1.20%)
Foreign derived intangible income deduction	(0.60%)	(0.70%)	(3.20%)
Tax credits	(1.20%)	(4.40%)	(3.20%)
Other	(1.30%)	(1.70%)	2.70%
Uncertain tax positions, net of tax audit settlements	(1.70%)	(2.60%)	1.70%
Effective tax rate	34.80%	33.10%	18.60%

Income Taxes (Narrative) (Detai

Income Taxes (Narrative) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Income Tax Disclosure [Abstract]
Refundable income taxes	$ 7,900	$ 9,500
Income taxes payable	18,300	16,000
State and local operating loss carryforwards	43,000
Foreign operating loss carryforwards	$ 147,200
Minimum duration of operating loss carryforwards that expire	1 year
Maximum duration of operating loss carryforwards that expire	20 years
Tax credit carryforwards	$ 26,678
Deferred tax asset valuation allowance	13,486	10,872
Unrecognized tax benefits that would impact effective tax rate	2,100	8,500	$ 8,700
Expense (benefit) for interest, net of tax, and penalties related to unrecognized tax benefits	400	600	500
Accrued amount for payment of interest, net of tax, and penalties related to unrecognized tax benefits	800	2,900	$ 2,900
Anticipated reversal within next 12 months of liabilities for unrecognized tax benefits	1,800
Deferred income taxes provided on undistributed earnings of foreign subsidiaries	2,110	$ 1,903
Undistributed earnings of foreign subsidiaries not indefinitely reinvested	15,400
Undistributed earning of foreign subsidiaries indefinitely reinvested	$ 265,500

Income Taxes (Components of Def

Income Taxes (Components of Deferred Tax Assets and Liabilities) (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Deferred tax assets:
Foreign operating loss carryforwards	$ 30,771	$ 36,631
Pension and other benefit programs	28,878	41,968
Foreign tax credit carryforwards	16,782	12,306
Accrued liabilities	12,792	12,883
Disallowed interest	10,025	7,692
Other	7,728	7,217
Other credit carryforwards	7,712	8,639
Inventories	3,605	2,879
State and local operating loss carryforwards	2,709	1,900
Currency differences	1,674	5,605
Allowance for doubtful accounts	280	589
Total deferred tax assets	122,956	138,309
Deferred tax liabilities:
Property, plant and equipment and intangibles - depreciation and amortization	20,835	16,024
Unremitted earnings of foreign subsidiaries	2,110	1,903
Deferred gain	0	2,351
Other	0	2,030
Total deferred tax liabilities	22,945	22,308
Net deferred tax assets before valuation allowance	100,011	116,001
Valuation allowance	(13,486)	(10,872)
Net deferred tax assets	$ 86,525	$ 105,129

Income Taxes (Expirations of Op

Income Taxes (Expirations of Operating Loss Carryforwards and Tax Credit Carryforwards) (Details) $ in Thousands	Dec. 31, 2021USD ($)
Income Tax And Carryforwards [Line Items]
Operating Loss Carryforwards	$ 190,148
Tax Credit Carryforwards	26,678
2022
Income Tax And Carryforwards [Line Items]
Operating Loss Carryforwards	412
Tax Credit Carryforwards	2,897
2023-2027
Income Tax And Carryforwards [Line Items]
Operating Loss Carryforwards	31,519
Tax Credit Carryforwards	15,917
2028-2032
Income Tax And Carryforwards [Line Items]
Operating Loss Carryforwards	10,239
Tax Credit Carryforwards	3,260
2033-2037
Income Tax And Carryforwards [Line Items]
Operating Loss Carryforwards	10,569
Tax Credit Carryforwards	3,063
2038-2042
Income Tax And Carryforwards [Line Items]
Operating Loss Carryforwards	9,892
Tax Credit Carryforwards	815
2043-Indefinitely
Income Tax And Carryforwards [Line Items]
Operating Loss Carryforwards	127,517
Tax Credit Carryforwards	$ 726

Income Taxes (Classification of

Income Taxes (Classification of Net Deferred Income Tax Assets) (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Income Tax Disclosure [Abstract]
Non-current assets	$ 98,199	$ 115,962
Non-current liabilities	(11,674)	(10,833)
Net deferred tax assets	$ 86,525	$ 105,129

Income Taxes (Activity and Bala

Income Taxes (Activity and Balances of Unrecognized Tax Benefits) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Income Tax Disclosure [Abstract]
Balance at beginning of year	$ 22,483	$ 26,000	$ 24,869
Additions based on tax positions related to the current year	0	153	3,425
Additions for tax positions of prior years	0	260	0
Reductions for tax positions of prior years	(6,061)	(3,781)	0
Reductions as a results of expiring statutes of limitations	(5,218)	(1,394)	(688)
Foreign currency adjustments	(419)	1,245	(660)
Settlements with taxing authorities	0	0	(946)
Balance at end of year	$ 10,785	$ 22,483	$ 26,000

Contingent Liabilities (Narrati

Contingent Liabilities (Narrative) (Details) $ in Millions	Dec. 31, 2021USD ($)	Dec. 31, 2020USD ($)	Dec. 31, 2019waterSupplier
Commitments and Contingencies Disclosure [Abstract]
Amount of bank guarantees and standby letters of credit issued by financial institutions	$ 4.5	$ 5.1
Undiscounted remediation liability associated with environmentally contaminated non-operating facility	$ 9	$ 5.7
Number of New York water suppliers | waterSupplier			25

Retirement Benefits (Defined Be

Retirement Benefits (Defined Benefit Pension Plans) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Amounts recognized in the balance sheet:
Accrued expenses and other current liabilities	$ (127,170)	$ (124,770)
Postretirement and pension liabilities	(133,116)	(181,610)
Pension Plan
Net periodic benefit cost:
Mark-to-market actuarial net (gains) losses	(18,200)	10,900	$ 1,200
U.S. Pension Plans | Pension Plan
Net periodic benefit cost:
Service cost	1	10	10
Interest cost	7,521	9,479	11,787
Expected return on plan assets	(15,248)	(14,782)	(12,622)
Amortization of prior service cost	0	0	0
Mark-to-market actuarial net (gains) losses	(18,200)	10,938	1,228
Curtailment and settlement effects (gains) losses	0	0	0
Special termination benefits	0	114	0
Net periodic benefit cost (credit)	$ (25,926)	$ 5,759	$ 403
Weighted-average assumptions:
Discount rate - net cost	2.55%	3.35%	4.40%
Discount rate - benefit obligations	2.85%	2.55%
Expected return on plan assets	7.48%	7.70%	7.70%
Change in benefit obligation
Benefit obligation at beginning of year	$ 306,310	$ 296,181
Service cost	1	10	$ 10
Interest cost	7,521	9,479	11,787
Curtailments	0	0
Amendments	0	0
Settlements	0	0
Special termination benefits	0	114
Plan participants' contributions	0	0
Benefits paid	(21,424)	(21,119)
Actuarial (gain) loss	(8,154)	21,645
Exchange rate effect	0	0
Benefit obligation at end of year	284,253	306,310	296,181
Accumulated benefit obligation at end of year	284,253	306,310
Fair value of plan assets at beginning of year	229,245	223,227
Actual return on plan assets	25,294	25,489
Employer contributions	10,693	1,648
Plan participants' contributions	0	0
Benefits paid	(21,424)	(21,119)
Effect of settlements	0	0
Exchange rate effect	0	0
Fair value of plan assets at end of year	243,808	229,245	223,227
Amounts recognized in the balance sheet:
Other non-current assets	0	0
Accrued expenses and other current liabilities	(581)	(389)
Postretirement and pension liabilities	(39,864)	(76,676)
Funded status	(40,445)	(77,065)
Pension plans with benefit obligations in excess of plan assets:
Benefit obligations	284,253	306,310
Plan assets	243,808	229,245
Pension plans with accumulated benefit obligations in excess of plan assets:
Projected benefit obligations	284,253	306,310
Accumulated benefit obligations	284,253	306,310
Plan assets	243,808	229,245
Prior service (cost):
Balance at beginning of year	0	0
Amounts recognized as net periodic benefit costs	0	0
Plan amendments	0	0
Exchange rate effects	0	0
Balance at end of year	0	0	0
Non-U.S. Plans | Pension Plan
Net periodic benefit cost:
Service cost	1,389	1,555	1,410
Interest cost	1,387	1,788	2,264
Expected return on plan assets	(473)	(601)	(758)
Amortization of prior service cost	(72)	13	7
Mark-to-market actuarial net (gains) losses	(7,113)	2,977	11,033
Curtailment and settlement effects (gains) losses	53	66	292
Special termination benefits	1	26	0
Net periodic benefit cost (credit)	$ (4,828)	$ 5,824	$ 14,248
Weighted-average assumptions:
Discount rate - net cost	1.14%	1.76%	2.61%
Discount rate - benefit obligations	1.43%	1.29%
Rate of compensation increase - net cost	2.85%	3.11%	3.19%
Rate of compensation increase - benefit obligations	2.86%	2.98%
Expected return on plan assets	1.55%	2.04%	2.74%
Change in benefit obligation
Benefit obligation at beginning of year	$ 130,132	$ 116,698
Service cost	1,389	1,555	$ 1,410
Interest cost	1,387	1,788	2,264
Curtailments	0	0
Amendments	(131)	(714)
Settlements	(132)	(835)
Special termination benefits	1	26
Plan participants' contributions	0	0
Benefits paid	(2,463)	(3,145)
Actuarial (gain) loss	(8,654)	4,907
Exchange rate effect	(8,938)	9,852
Benefit obligation at end of year	112,591	130,132	116,698
Accumulated benefit obligation at end of year	105,155	119,914
Fair value of plan assets at beginning of year	37,587	33,898
Actual return on plan assets	(1,121)	2,465
Employer contributions	1,452	2,363
Plan participants' contributions	0	0
Benefits paid	(2,463)	(3,145)
Effect of settlements	(132)	(835)
Exchange rate effect	(2,544)	2,841
Fair value of plan assets at end of year	32,780	37,587	33,898
Amounts recognized in the balance sheet:
Other non-current assets	283	59
Accrued expenses and other current liabilities	(2,712)	(2,575)
Postretirement and pension liabilities	(77,382)	(90,029)
Funded status	(79,811)	(92,545)
Pension plans with benefit obligations in excess of plan assets:
Benefit obligations	81,952	94,567
Plan assets	1,858	1,963
Pension plans with accumulated benefit obligations in excess of plan assets:
Projected benefit obligations	80,897	94,057
Accumulated benefit obligations	73,540	83,923
Plan assets	803	1,518
Prior service (cost):
Balance at beginning of year	(672)	(44)
Amounts recognized as net periodic benefit costs	72	(13)
Plan amendments	(131)	(604)
Exchange rate effects	33	(11)
Balance at end of year	$ (698)	$ (672)	$ (44)

Retirement Benefits (Narrative)

Retirement Benefits (Narrative) (Details) - USD ($) $ in Thousands, shares in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Pension Postretirement And Other Retirement Plans [Line Items]
Shares of company common stock	83.6	82.4
Unrealized gain (loss) included in earnings	$ 1,200	$ 4,100
Defined contribution plan vesting period	5 years
Defined contribution retirement plans expense	$ 4,400	3,200	$ 3,700
Fixed Income Securities
Pension Postretirement And Other Retirement Plans [Line Items]
Target allocation percentage for fixed income, equity and other investments	35.00%
Equity Securities
Pension Postretirement And Other Retirement Plans [Line Items]
Target allocation percentage for fixed income, equity and other investments	60.00%
Other Investments
Pension Postretirement And Other Retirement Plans [Line Items]
Target allocation percentage for fixed income, equity and other investments	5.00%
Pension Plan
Pension Postretirement And Other Retirement Plans [Line Items]
Mark-to-market actuarial net (gains) losses	$ (18,200)	10,900	1,200
Gains (losses) from returns on plan assets	10,000	10,700	23,300
Charge to remeasure liability based on lower discount rate	8,400	23,000	28,300
Loss on demographic experience and actuarial assumptions	$ 200
Gain on demographic experience and actuarial assumptions		$ 1,400	3,800
Shares of company common stock	0.3	0.3
Market value of shares held of company common stock	$ 6,200	$ 4,100
Pension Plan | U.S. Pension Plans
Pension Postretirement And Other Retirement Plans [Line Items]
Mark-to-market actuarial net (gains) losses	(18,200)	10,938	1,228
Expected contribution to pension plans	600
Pension Plan | Non-U.S. Plans
Pension Postretirement And Other Retirement Plans [Line Items]
Mark-to-market actuarial net (gains) losses	(7,113)	2,977	$ 11,033
Charge to remeasure liability based on lower discount rate	3,800	5,900
Gain on demographic experience and actuarial assumptions	3,500	$ 2,100
Expected contribution to pension plans	$ 2,500

Retirement Benefits (Fair Value

Retirement Benefits (Fair Value of Pension Plan Assets) (Details) - Pension Plan - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
U.S. Pension Plans | Total assets in the fair value hierarchy
Pension Postretirement And Other Retirement Plans [Line Items]
Total fair value of plan assets	$ 227,365	$ 215,289
U.S. Pension Plans | Investments measured at net asset value
Pension Postretirement And Other Retirement Plans [Line Items]
Total fair value of plan assets	16,443	13,956
U.S. Pension Plans
Pension Postretirement And Other Retirement Plans [Line Items]
Total fair value of plan assets	243,808	229,245	$ 223,227
U.S. Pension Plans | Guaranteed deposits | Total assets in the fair value hierarchy
Pension Postretirement And Other Retirement Plans [Line Items]
Fair value of plan assets	1,602	1,699
U.S. Pension Plans | Mutual funds | Total assets in the fair value hierarchy
Pension Postretirement And Other Retirement Plans [Line Items]
Fair value of plan assets	79,837	72,424
U.S. Pension Plans | Commingled funds | Total assets in the fair value hierarchy
Pension Postretirement And Other Retirement Plans [Line Items]
Fair value of plan assets	521	605
U.S. Pension Plans | U.S. common stocks | Total assets in the fair value hierarchy
Pension Postretirement And Other Retirement Plans [Line Items]
Fair value of plan assets	6,180	4,142
U.S. Pension Plans | Mutual funds | Total assets in the fair value hierarchy
Pension Postretirement And Other Retirement Plans [Line Items]
Fair value of plan assets	138,692	135,791
U.S. Pension Plans | Commingled funds | Total assets in the fair value hierarchy
Pension Postretirement And Other Retirement Plans [Line Items]
Fair value of plan assets	533	628
Non-U.S. Plans
Pension Postretirement And Other Retirement Plans [Line Items]
Total fair value of plan assets	32,780	37,587	$ 33,898
Non-U.S. Plans | Cash and cash equivalents
Pension Postretirement And Other Retirement Plans [Line Items]
Fair value of plan assets	102	183
Non-U.S. Plans | Guaranteed deposits
Pension Postretirement And Other Retirement Plans [Line Items]
Fair value of plan assets	30,322	34,515
Non-U.S. Plans | Mutual funds
Pension Postretirement And Other Retirement Plans [Line Items]
Fair value of plan assets	2,078	2,612
Non-U.S. Plans | Mutual funds
Pension Postretirement And Other Retirement Plans [Line Items]
Fair value of plan assets	194	193
Non-U.S. Plans | Other
Pension Postretirement And Other Retirement Plans [Line Items]
Fair value of plan assets	84	84
Level 1 | U.S. Pension Plans | Total assets in the fair value hierarchy
Pension Postretirement And Other Retirement Plans [Line Items]
Total fair value of plan assets	224,709	212,357
Level 1 | U.S. Pension Plans | Investments measured at net asset value
Pension Postretirement And Other Retirement Plans [Line Items]
Total fair value of plan assets	0	0
Level 1 | U.S. Pension Plans
Pension Postretirement And Other Retirement Plans [Line Items]
Total fair value of plan assets	224,709	212,357
Level 1 | U.S. Pension Plans | Guaranteed deposits | Total assets in the fair value hierarchy
Pension Postretirement And Other Retirement Plans [Line Items]
Fair value of plan assets	0	0
Level 1 | U.S. Pension Plans | Mutual funds | Total assets in the fair value hierarchy
Pension Postretirement And Other Retirement Plans [Line Items]
Fair value of plan assets	79,837	72,424
Level 1 | U.S. Pension Plans | Commingled funds | Total assets in the fair value hierarchy
Pension Postretirement And Other Retirement Plans [Line Items]
Fair value of plan assets	0	0
Level 1 | U.S. Pension Plans | U.S. common stocks | Total assets in the fair value hierarchy
Pension Postretirement And Other Retirement Plans [Line Items]
Fair value of plan assets	6,180	4,142
Level 1 | U.S. Pension Plans | Mutual funds | Total assets in the fair value hierarchy
Pension Postretirement And Other Retirement Plans [Line Items]
Fair value of plan assets	138,692	135,791
Level 1 | U.S. Pension Plans | Commingled funds | Total assets in the fair value hierarchy
Pension Postretirement And Other Retirement Plans [Line Items]
Fair value of plan assets	0	0
Level 1 | Non-U.S. Plans
Pension Postretirement And Other Retirement Plans [Line Items]
Total fair value of plan assets	1,797	1,979
Level 1 | Non-U.S. Plans | Cash and cash equivalents
Pension Postretirement And Other Retirement Plans [Line Items]
Fair value of plan assets	102	183
Level 1 | Non-U.S. Plans | Guaranteed deposits
Pension Postretirement And Other Retirement Plans [Line Items]
Fair value of plan assets	0	0
Level 1 | Non-U.S. Plans | Mutual funds
Pension Postretirement And Other Retirement Plans [Line Items]
Fair value of plan assets	1,417	1,519
Level 1 | Non-U.S. Plans | Mutual funds
Pension Postretirement And Other Retirement Plans [Line Items]
Fair value of plan assets	194	193
Level 1 | Non-U.S. Plans | Other
Pension Postretirement And Other Retirement Plans [Line Items]
Fair value of plan assets	84	84
Level 2 | U.S. Pension Plans | Total assets in the fair value hierarchy
Pension Postretirement And Other Retirement Plans [Line Items]
Total fair value of plan assets	2,500	2,750
Level 2 | U.S. Pension Plans | Investments measured at net asset value
Pension Postretirement And Other Retirement Plans [Line Items]
Total fair value of plan assets	0	0
Level 2 | U.S. Pension Plans
Pension Postretirement And Other Retirement Plans [Line Items]
Total fair value of plan assets	2,500	2,750
Level 2 | U.S. Pension Plans | Guaranteed deposits | Total assets in the fair value hierarchy
Pension Postretirement And Other Retirement Plans [Line Items]
Fair value of plan assets	1,602	1,699
Level 2 | U.S. Pension Plans | Mutual funds | Total assets in the fair value hierarchy
Pension Postretirement And Other Retirement Plans [Line Items]
Fair value of plan assets	0	0
Level 2 | U.S. Pension Plans | Commingled funds | Total assets in the fair value hierarchy
Pension Postretirement And Other Retirement Plans [Line Items]
Fair value of plan assets	365	423
Level 2 | U.S. Pension Plans | U.S. common stocks | Total assets in the fair value hierarchy
Pension Postretirement And Other Retirement Plans [Line Items]
Fair value of plan assets	0	0
Level 2 | U.S. Pension Plans | Mutual funds | Total assets in the fair value hierarchy
Pension Postretirement And Other Retirement Plans [Line Items]
Fair value of plan assets	0	0
Level 2 | U.S. Pension Plans | Commingled funds | Total assets in the fair value hierarchy
Pension Postretirement And Other Retirement Plans [Line Items]
Fair value of plan assets	533	628
Level 2 | Non-U.S. Plans
Pension Postretirement And Other Retirement Plans [Line Items]
Total fair value of plan assets	1,405	1,875
Level 2 | Non-U.S. Plans | Cash and cash equivalents
Pension Postretirement And Other Retirement Plans [Line Items]
Fair value of plan assets	0	0
Level 2 | Non-U.S. Plans | Guaranteed deposits
Pension Postretirement And Other Retirement Plans [Line Items]
Fair value of plan assets	744	782
Level 2 | Non-U.S. Plans | Mutual funds
Pension Postretirement And Other Retirement Plans [Line Items]
Fair value of plan assets	661	1,093
Level 2 | Non-U.S. Plans | Mutual funds
Pension Postretirement And Other Retirement Plans [Line Items]
Fair value of plan assets	0	0
Level 2 | Non-U.S. Plans | Other
Pension Postretirement And Other Retirement Plans [Line Items]
Fair value of plan assets	0	0
Level 3 | U.S. Pension Plans | Total assets in the fair value hierarchy
Pension Postretirement And Other Retirement Plans [Line Items]
Total fair value of plan assets	156	182
Level 3 | U.S. Pension Plans | Investments measured at net asset value
Pension Postretirement And Other Retirement Plans [Line Items]
Total fair value of plan assets	0	0
Level 3 | U.S. Pension Plans
Pension Postretirement And Other Retirement Plans [Line Items]
Total fair value of plan assets	156	182
Level 3 | U.S. Pension Plans | Guaranteed deposits | Total assets in the fair value hierarchy
Pension Postretirement And Other Retirement Plans [Line Items]
Fair value of plan assets	0	0
Level 3 | U.S. Pension Plans | Mutual funds | Total assets in the fair value hierarchy
Pension Postretirement And Other Retirement Plans [Line Items]
Fair value of plan assets	0	0
Level 3 | U.S. Pension Plans | Commingled funds | Total assets in the fair value hierarchy
Pension Postretirement And Other Retirement Plans [Line Items]
Fair value of plan assets	156	182
Level 3 | U.S. Pension Plans | U.S. common stocks | Total assets in the fair value hierarchy
Pension Postretirement And Other Retirement Plans [Line Items]
Fair value of plan assets	0	0
Level 3 | U.S. Pension Plans | Mutual funds | Total assets in the fair value hierarchy
Pension Postretirement And Other Retirement Plans [Line Items]
Fair value of plan assets	0	0
Level 3 | U.S. Pension Plans | Commingled funds | Total assets in the fair value hierarchy
Pension Postretirement And Other Retirement Plans [Line Items]
Fair value of plan assets	0	0
Level 3 | Non-U.S. Plans
Pension Postretirement And Other Retirement Plans [Line Items]
Total fair value of plan assets	29,578	33,733
Level 3 | Non-U.S. Plans | Cash and cash equivalents
Pension Postretirement And Other Retirement Plans [Line Items]
Fair value of plan assets	0	0
Level 3 | Non-U.S. Plans | Guaranteed deposits
Pension Postretirement And Other Retirement Plans [Line Items]
Fair value of plan assets	29,578	33,733
Level 3 | Non-U.S. Plans | Mutual funds
Pension Postretirement And Other Retirement Plans [Line Items]
Fair value of plan assets	0	0
Level 3 | Non-U.S. Plans | Mutual funds
Pension Postretirement And Other Retirement Plans [Line Items]
Fair value of plan assets	0	0
Level 3 | Non-U.S. Plans | Other
Pension Postretirement And Other Retirement Plans [Line Items]
Fair value of plan assets	$ 0	$ 0

Retirement Benefits (Schedule o

Retirement Benefits (Schedule of Rollforward of Level 3 Assets) (Details) - Pension Plan - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Beginning balance	$ 33,915	$ 30,399
Sales	(669)	(616)
Gains (losses) included in earnings	(1,166)	4,132
Exchange rate effect	(2,346)	0
Ending balance	29,734	33,915
Guaranteed Deposits
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Beginning balance	33,733	30,155
Sales	(669)	(616)
Gains (losses) included in earnings	(1,140)	4,194
Exchange rate effect	(2,346)	0
Ending balance	29,578	33,733
Commingled funds
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Beginning balance	182	244
Sales	0	0
Gains (losses) included in earnings	(26)	(62)
Exchange rate effect	0	0
Ending balance	$ 156	$ 182

Retirement Benefits (Future Pen

Retirement Benefits (Future Pension Benefit Payments) (Details) - Pension Plan $ in Thousands	Dec. 31, 2021USD ($)
U.S. Pension Plans
Pension Postretirement And Other Retirement Plans [Line Items]
2022	$ 20,501
2023	20,170
2024	19,914
2025	19,794
2026	19,204
2027-2031	90,225
Non-U.S. Plans
Pension Postretirement And Other Retirement Plans [Line Items]
2022	3,975
2023	4,678
2024	3,672
2025	3,905
2026	4,365
2027-2031	$ 22,984

Retirement Benefits (Postretire

Retirement Benefits (Postretirement Health Care and Life Insurance Benefit Plans) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Amounts recognized in the balance sheet:
Accrued expenses and other current liabilities	$ (127,170)	$ (124,770)
Postretirement and pension liabilities	(133,116)	(181,610)
Postretirement Health Care and Life Insurance Benefit Plans
Net periodic benefit cost:
Interest cost	272	529	$ 702
Service cost	0	3	2
Amortization of prior service cost	(4)	(4,240)	0
Mark-to-market actuarial net (gains) losses	(606)	101	1,080
Net periodic benefit cost (credit)	$ (338)	$ (3,607)	$ 1,784
Weighted-average assumptions:
Discount rate - net cost	2.40%	3.25%	4.30%
Current trend rate for health care costs - net cost	6.00%	6.10%	6.30%
Ultimate trend rate for health care costs - net cost	4.50%	4.50%	4.50%
Year that ultimate trend rate is reached - net cost	2036	2036	2036
Discount rate - benefit obligations	2.80%	2.40%
Current trend rate for health care costs - benefit obligations	5.40%	6.00%
Ultimate trend rate for health care costs - benefit obligations	4.00%	4.50%
Year that ultimate trend rate is reached - benefit obligations	2045	2036
Change in benefit obligation
Benefit obligation at beginning of year	$ 11,854	$ 17,149
Service cost	0	3	$ 2
Interest cost	272	529	702
Plan amendments	(4)	(4,240)
Benefits paid	(1,529)	(1,688)
Actuarial loss (gain)	(606)	101
Benefit obligation at end of year	9,987	11,854	17,149
Fair value of plan assets at beginning of year	0	0	0
Employer contributions	1,529	1,688
Benefits paid	(1,529)	(1,688)
Fair value of plan assets at end of year	0	0	$ 0
Amounts recognized in the balance sheet:
Accrued expenses and other current liabilities	(892)	(1,047)
Postretirement and pension liabilities	(9,095)	(10,807)
Funded status	$ 9,987	$ 11,854

Retirement Benefits (Future Pos

Retirement Benefits (Future Postretirement Health Care and Life Insurance Benefit Payments) (Details) - Postretirement Health Care and Life Insurance Benefit Plans $ in Thousands	Dec. 31, 2021USD ($)
Pension Postretirement And Other Retirement Plans [Line Items]
Before Medicare Subsidy 2022	$ 892
Before Medicare Subsidy 2023	850
Before Medicare Subsidy 2024	816
Before Medicare Subsidy 2025	775
Before Medicare Subsidy 2026	741
Before Medicare Subsidy 2026-2030	3,204
After Medicare Subsidy, 2022	892
After Medicare Subsidy, 2023	850
After Medicare Subsidy, 2024	816
After Medicare Subsidy, 2025	775
After Medicare Subsidy, 2026	741
After Medicare Subsidy 2026-2030	$ 3,204

Stock-based Compensation (Narra

Stock-based Compensation (Narrative) (Details) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares of common stock reserved under plan (in shares)	4,500,000
Stock Options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Term of stock option or unit granted	10 years
Stock option vesting period option	3 years
Percentage of stock options to become vested and exercisable	100.00%
Weighted-average grant-date fair value (in USD per share)	$ 5.94	$ 5.28	$ 6.47
Recognized stock-based compensation expense	$ 1,851	$ 2,304	$ 1,801
Unearned compensation cost related to the unvested portion of all stock-based awards	$ 1,908	$ 2,039	$ 1,469
Performance Share Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Term of stock option or unit granted	3 years
Vesting period (in years)	3 years
Maximum payout percentage	200.00%
Weighted-average grant-date fair value (in USD per share)	$ 16	$ 14.64	$ 17.61
Number of share based compensation units granted (in shares)	185,600
Recognized stock-based compensation expense	$ 626	$ 3,270	$ 3,607
Unearned compensation cost related to the unvested portion of all stock-based awards	$ 3,747	$ 3,417	$ 2,730
Performance Shares Units 2021 Grants
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Performance shares outstanding (in shares)	200,000
Performance Shares Units 2020 Grants
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Performance shares outstanding (in shares)	200,000
Restricted Stock Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period (in years)	3 years
Number of share based compensation units granted (in shares)	200,000	200,000	200,000
Recognized stock-based compensation expense	$ 2,100	$ 2,400	$ 1,700
Unearned compensation cost related to the unvested portion of all stock-based awards	$ 2,500	$ 2,800	$ 2,800
Director's Deferred Compensation | Common Shares in Treasury
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Common stock held in rabbi trust (in shares)	100,000	100,000
Value of common stock held in rabbi trust	$ 1,400	$ 1,600

Stock-based Compensation (Detai

Stock-based Compensation (Details of Weighted-Average Grant-Date Fair Values and Assumptions Used for Estimating Fair Values) (Details) - Stock Options - $ / shares	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Weighted-average grant-date fair value (in USD per share)	$ 5.94	$ 5.28	$ 6.47
Expected life, in years	6 years	5 years 2 months 12 days	5 years 7 months 6 days
Risk-free interest rate	0.80%	1.40%	2.50%
Expected volatility	40.40%	35.10%	33.90%

Stock-based Compensation (Summa

Stock-based Compensation (Summary of Stock-Based Compensation Activity) (Details) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2021USD ($)$ / sharesshares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Weighted-Average remaining contractual term, outstanding, ending balance (in years)	7 years 4 months 24 days
Weighted-average remaining contractual term, exercisable, ending balance (in years)	7 years 2 months 12 days
Weighted-average remaining contractual term, vested or expected to vest, ending balance (in years)	7 years 4 months 24 days
Aggregate intrinsic value, outstanding, ending balance | $	$ 6,666
Aggregate intrinsic value, exercisable, ending balance | $	5,543
Aggregate intrinsic value, vested or expected to vest, ending balance | $	$ 6,666
Weighted-average remaining contractual term, outstanding, ending balance (in years)	1 year
Weighted- average remaining contractual term, vested or expected to vest, ending balance (in years)	1 year
Stock Options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of options, outstanding at beginning (in shares)	1,933,899
Number of options, granted (in shares)	285,400
Number of options, exercised (in shares)	(1,035,434)
Number of options, forfeited or expired (in shares)	(38,433)
Number of options, outstanding at ending (in shares)	1,145,432
Number of options, exercisable, ending balance (in shares)	972,933
Number of options, vested or expected to vest, ending balance (in shares)	1,145,432
Weighted-average exercise price, outstanding at beginning (in USD per share) | $ / shares	$ 13.20
Weighted-average exercise price, granted (in USD per share) | $ / shares	15.10
Weighted-average exercise price, exercised (in USD per share) | $ / shares	10.48
Weighted-average exercise price, forfeited or expired (in USD per share) | $ / shares	16.08
Weighted-average exercise price, outstanding at ending (in USD per share) | $ / shares	16.03
Weighted-average exercise price, exercisable, ending balance (in USD per share) | $ / shares	16.16
Weighted-average exercise price, vested or expected to vest, ending balance (in USD per share) | $ / shares	$ 16.03
Performance Share Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of units, outstanding at beginning (in shares)	481,998
Number of units, granted (in shares)	185,600
Number of units, earned (in shares)	(71,856)
Number of units, forfeited or expired (in shares)	(53,144)
Number of units, outstanding at ending (in shares)	542,598
Number of units, expected to vest, ending balance (in shares)	542,598

Stock-based Compensation (Infor

Stock-based Compensation (Information Related to Stock Options Exercised) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Proceeds from exercise of stock options	$ 11,575	$ 756	$ 1,052
Continuing Operations
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Proceeds from exercise of stock options	11,575	756	1,052
Intrinsic value of stock options exercised	11,314	867	750
Income tax benefit related to stock options exercised	$ 2,602	$ 182	$ 158

Stock-based Compensation (Sum_2

Stock-based Compensation (Summary of Stock-Based Compensation Expense) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Stock Options
Schedule Of Share Based Compensation Arrangements [Line Items]
Compensation expense recorded in Selling, general and administrative expenses	$ 1,851	$ 2,304	$ 1,801
Deferred income tax benefits related to compensation expense	426	484	378
Total fair value of stock options vested	1,812	465	1,387
Unrecognized compensation cost	$ 1,908	$ 2,039	$ 1,469
Expected weighted-average recognition period for unrecognized compensation, in years	1 year 1 month 6 days	1 year 9 months 18 days	2 years 2 months 12 days
Performance Share Units
Schedule Of Share Based Compensation Arrangements [Line Items]
Compensation expense recorded in Selling, general and administrative expenses	$ 626	$ 3,270	$ 3,607
Deferred income tax benefits related to compensation expense	144	773	757
Unrecognized compensation cost	$ 3,747	$ 3,417	$ 2,730
Expected weighted-average recognition period for unrecognized compensation, in years	1 year 6 months	1 year 6 months	1 year 7 months 6 days

Restructuring and Cost Reduct_3

Restructuring and Cost Reduction Programs (Narrative) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Total restructuring charges	$ 14.4	$ 17.4	$ 11
Period expected for cash payments for employee benefits and other costs	12 months
Tile Coating Business
Additional restructuring charges	$ 0.3	$ 2.3	$ 1.9

Restructuring and Cost Reduct_4

Restructuring and Cost Reduction Programs (Summary of Charges Associated with Restructuring Programs by Major Type of Charges) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Restructuring Cost and Reserve [Line Items]
Total expected restructuring charges	$ 5,654
Restructuring charges	14,410	$ 17,425	$ 10,955
Cumulative restructuring charges incurred	42,790
Organizational Optimization Program
Restructuring Cost and Reserve [Line Items]
Total expected restructuring charges	5,654
Restructuring charges	6,834	2,980
Cumulative restructuring charges incurred	9,814
American Manufacturing Optimization Program
Restructuring Cost and Reserve [Line Items]
Total expected restructuring charges	0
Restructuring charges	3,637	1,040
Cumulative restructuring charges incurred	4,677
Global Optimization Program
Restructuring Cost and Reserve [Line Items]
Total expected restructuring charges	0
Restructuring charges	3,939	13,405	10,955
Cumulative restructuring charges incurred		28,299
Employee Severance
Restructuring Cost and Reserve [Line Items]
Total expected restructuring charges	5,654
Restructuring charges	10,471	9,690	7,163
Cumulative restructuring charges incurred	27,324
Employee Severance | Organizational Optimization Program
Restructuring Cost and Reserve [Line Items]
Total expected restructuring charges	5,654
Restructuring charges	6,834	2,980
Cumulative restructuring charges incurred	9,814
Employee Severance | American Manufacturing Optimization Program
Restructuring Cost and Reserve [Line Items]
Total expected restructuring charges	0
Restructuring charges	3,637	1,040
Cumulative restructuring charges incurred	4,677
Employee Severance | Global Optimization Program
Restructuring Cost and Reserve [Line Items]
Total expected restructuring charges	0
Restructuring charges	0	5,670	7,163
Cumulative restructuring charges incurred		12,833
Other Costs
Restructuring Cost and Reserve [Line Items]
Total expected restructuring charges	0
Restructuring charges	3,939	7,735	3,792
Cumulative restructuring charges incurred	15,466
Other Costs | Organizational Optimization Program
Restructuring Cost and Reserve [Line Items]
Total expected restructuring charges	0
Restructuring charges	0	0
Cumulative restructuring charges incurred	0
Other Costs | American Manufacturing Optimization Program
Restructuring Cost and Reserve [Line Items]
Total expected restructuring charges	0
Restructuring charges	0	0
Cumulative restructuring charges incurred	0
Other Costs | Global Optimization Program
Restructuring Cost and Reserve [Line Items]
Total expected restructuring charges	0
Restructuring charges	$ 3,939	7,735	$ 3,792
Cumulative restructuring charges incurred		$ 15,466

Restructuring and Cost Reduct_5

Restructuring and Cost Reduction Programs (Summary of Charges Associated with Restructuring Programs by Segments) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Restructuring Cost and Reserve [Line Items]
Total Expected Charges	$ 5,654
Restructuring charges incurred	14,410	$ 17,425	$ 10,955
Cumulative Charges To Date	42,790
Operating Segments
Restructuring Cost and Reserve [Line Items]
Total Expected Charges	268
Restructuring charges incurred	106	128	119
Cumulative Charges To Date	353
Functional Coatings | Operating Segments
Restructuring Cost and Reserve [Line Items]
Total Expected Charges	169
Restructuring charges incurred	0	27	(5)
Cumulative Charges To Date	22
Color Solutions | Operating Segments
Restructuring Cost and Reserve [Line Items]
Total Expected Charges	99
Restructuring charges incurred	106	101	124
Cumulative Charges To Date	331
Corporate Restructuring Charges
Restructuring Cost and Reserve [Line Items]
Total Expected Charges	5,386
Restructuring charges incurred	14,304	$ 17,297	$ 10,836
Cumulative Charges To Date	$ 42,437

Restructuring and Cost Reduct_6

Restructuring and Cost Reduction Programs (Summary of Accruals Related to Restructuring and Optimization Programs) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Restructuring Cost and Reserve [Roll Forward]
Beginning balance	$ 9,970	$ 2,239	$ 1,843
Restructuring charges	14,410	17,425	10,955
Cash payments	(10,254)	(8,889)	(8,818)
Non-cash items	(1,129)	(805)	(1,741)
Ending balance	12,997	9,970	2,239
Employee Severance
Restructuring Cost and Reserve [Roll Forward]
Beginning balance	5,510	747	1,011
Restructuring charges	10,471	9,690	7,163
Cash payments	(7,626)	(4,363)	(6,987)
Non-cash items	0	(564)	(440)
Ending balance	8,355	5,510	747
Other Costs
Restructuring Cost and Reserve [Roll Forward]
Beginning balance	4,460	1,492	832
Restructuring charges	3,939	7,735	3,792
Cash payments	(2,628)	(4,526)	(1,831)
Non-cash items	(1,129)	(241)	(1,301)
Ending balance	$ 4,642	$ 4,460	$ 1,492

Leases (Narrative) (Details)

Leases (Narrative) (Details)	Dec. 31, 2021
Leases [Abstract]
Initial lease term	12 months

Leases (Components of Lease Cos

Leases (Components of Lease Costs) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Lessee, Lease, Description [Line Items]
Net lease cost	$ 11,158	$ 12,453
Selling, general and administrative expenses
Lessee, Lease, Description [Line Items]
Operating lease cost	4,248	4,716
Short-term lease costs	700	900
Variable lease costs	400	400
Cost of sales
Lessee, Lease, Description [Line Items]
Operating lease cost	6,404	7,406
Amortization of right-of-use assets	461	298
Short-term lease costs	2,800	2,700
Variable lease costs	0	700
Interest expense
Lessee, Lease, Description [Line Items]
Interest of lease liabilities	$ 45	$ 33

Leases (Supplemental Balance Sh

Leases (Supplemental Balance Sheet Information Related to Leases) (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Assets
Operating leased assets	$ 13,186	$ 15,446
Finance leased assets	1,184	1,410
Total leased assets	14,370	16,856
Liabilities
Current, operating	4,325	5,431
Current, finance	687	640
Noncurrent, operating	8,849	10,064
Noncurrent, finance	1,810	2,271
Total lease liabilities	$ 15,671	$ 18,406
Operating lease, right-of-use asset, statement of financial position	Operating leased assets	Operating leased assets
Finance lease, right-of-use asset, statement of financial position	Property, plant and equipment, net	Property, plant and equipment, net
Operating lease, liability, statement of financial position	Accrued expenses and other current liabilities	Accrued expenses and other current liabilities
Finance lease, liability, statement of financial position	Loans payable and current portion of long-term debt	Loans payable and current portion of long-term debt
Operating lease, liability, noncurrent, statement of financial position	Noncurrent, operating	Noncurrent, operating
Finance lease, liability, noncurrent, statement of financial position	Long-term debt, less current portion	Long-term debt, less current portion
Finance leases, net accumulated depreciation	$ 3,500	$ 3,100

Leases (Supplemental Cash Flow

Leases (Supplemental Cash Flow Information Related to Leases) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Leases [Abstract]
Operating cash flows from finance leases	$ 45	$ 33
Operating cash flows from operating leases	7,014	7,959
Financing cash flows from finance leases	461	331
Leased assets obtained in exchange for new finance lease liabilities	301	961
Leased assets obtained in exchange for new operating lease liabilities	$ 6,412	$ 4,686
Weighted-average remaining lease term, operating leases (in years)	4 years 6 months
Weighted-average remaining lease term, finance leases (in years)	4 years 4 months 24 days
Weighted-average discount rate, operating leases	4.20%
Weighted-average discount rate, finance leases	4.50%

Leases (Maturities of Lease Lia

Leases (Maturities of Lease Liabilities) (Details) $ in Thousands	Dec. 31, 2021USD ($)
Finance Leases
2022	$ 778
2023	699
2024	570
2025	465
2026	331
Thereafter	139
Net minimum lease payments	2,982
Less: interest	(485)
Present value of lease liabilities	2,497
Operating Leases
2022	5,129
2023	3,325
2024	2,337
2025	1,823
2026	1,422
Thereafter	1,804
Net minimum lease payments	15,840
Less: interest	(2,667)
Present value of lease liabilities	$ 13,173

Miscellaneous (Income) Expens_2

Miscellaneous (Income) Expense, Net (Components of Miscellaneous Expense (Income), Net) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Other Income and Expenses [Abstract]
Pension (income) expense	$ (31,919)	$ 6,425	$ 14,845
Brazil value-added tax	(7,481)	0	0
Loss (gain) on sale of assets	(461)	87	(1,412)
Dividends/royalty from affiliates, net	(192)	(264)	(529)
Bank fees	1,602	1,498	1,798
Other, net	3,184	(2,174)	(474)
Contingent consideration adjustment	0	(67)	(2,723)
Argentina export tax matter	0	0	217
Total Miscellaneous (income) expense, net	$ (35,267)	$ 5,505	$ 11,722

Miscellaneous (Income) Expens_3

Miscellaneous (Income) Expense, Net (Narrative) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Other Income and Expenses [Abstract]
Pension (income) expense	$ (31,919)	$ 6,425	$ 14,845
Brazil value-added tax	$ (7,481)	$ 0	$ 0

Earnings Per Share (Calculation

Earnings Per Share (Calculations of Basic and Diluted Earnings Per Share) (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Basic earnings per share computation:
Income from continuing operations	$ 73,342	$ 30,040	$ 34,826
Less: Net income attributable to noncontrolling interests from continuing operations	1,646	1,073	1,087
Net income attributable to Ferro Corporation from continuing operations	71,696	28,967	33,739
Income (loss) from discontinued operations, net of income taxes	77,199	14,003	(27,411)
Less: Net income attributable to noncontrolling interests from discontinued operations	64	171	290
Net income (loss) attributable to Ferro Corporation from discontinued operations	77,135	13,832	(27,701)
Net income attributable to Ferro Corporation common shareholders	$ 148,831	$ 42,799	$ 6,038
Weighted-average common shares outstanding (in shares)	82,711	82,232	82,083
Basic earnings per share from continuing operations attributable to Ferro Corporation common shareholders (in USD per share)	$ 0.86	$ 0.35	$ 0.41
Diluted earnings per share computation:
Net income attributable to Ferro Corporation common shareholders	$ 71,696	$ 28,967	$ 33,739
Net income (loss) attributable to Ferro Corporation from discontinued operations	77,135	13,832	(27,701)
Net income attributable to Ferro Corporation common shareholders	$ 148,831	$ 42,799	$ 6,038
Assumed exercise of stock options (in shares)	557	272	407
Assumed satisfaction of restricted stock unit conditions (in shares)	227	362	369
Assumed satisfaction of performance stock unit conditions (in shares)	102	158	32
Weighted-average diluted shares outstanding, total (in shares)	83,597	83,024	82,891
Diluted earnings per share from continuing operations attributable to Ferro Corporation common shareholders (in USD per share)	$ 0.86	$ 0.35	$ 0.41

Earnings Per Share (Narrative)

Earnings Per Share (Narrative) (Details) - shares shares in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Earnings Per Share [Abstract]
Anti-dilutive securities excluded from computation of earnings per share (in shares)	1.2	2.5	2.1

Share Repurchase Program (Narra

Share Repurchase Program (Narrative) (Details) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019	Oct. 31, 2018
Stockholders' Equity Attributable to Parent [Abstract]
Stock repurchase program, additional authorized amount	$ 100,000			$ 50,000
Purchase of treasury stock (in shares)	0	0	1,440,678
Treasury stock acquired, average cost (in USD per share)			$ 17.35
Purchase of treasury stock			$ 25,000
Stock repurchase program, remaining authorized amount	$ 46,200

Accumulated Other Comprehensi_3

Accumulated Other Comprehensive Loss (Changes in Accumulated Other Comprehensive Loss by Component, Net of Tax) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning balances	$ 440,935	$ 370,202	$ 385,849
Ending balances	548,103	440,935	370,202
Accumulated Other Comprehensive Income (Loss)
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning balances	(89,710)	(109,376)	(105,361)
Other comprehensive income (loss) before reclassifications, before tax	(79,029)	(9,709)	3,538
Cash flow hedge income (loss), before tax	3,763	22,465	(10,162)
Postretirement benefit liabilities income (loss), before tax	216	2,146	91
Currency translation reclassification to income on divestiture	17,305
Amount reclassification to income (remote transaction)	11,012
Current period other comprehensive income (loss), before tax	(46,733)	14,902	(6,533)
Tax effect	5,329	(4,764)	(2,518)
Current period other comprehensive income (loss), net of tax	(52,062)	19,666	(4,015)
Ending balances	(141,772)	(89,710)	(109,376)
Postretirement Benefit Liability Adjustments
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning balances	3,199	1,206	1,126
Other comprehensive income (loss) before reclassifications, before tax	0	0	0
Cash flow hedge income (loss), before tax	0	0	0
Postretirement benefit liabilities income (loss), before tax	216	2,146	91
Currency translation reclassification to income on divestiture	0
Amount reclassification to income (remote transaction)	0
Current period other comprehensive income (loss), before tax	216	2,146	91
Tax effect	6	153	11
Current period other comprehensive income (loss), net of tax	210	1,993	80
Ending balances	3,409	3,199	1,206
Foreign Currency Items
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning balances	(70,482)	(97,575)	(103,190)
Other comprehensive income (loss) before reclassifications, before tax	(85,676)	24,980	6,269
Cash flow hedge income (loss), before tax	0	0	0
Postretirement benefit liabilities income (loss), before tax	0	0	0
Currency translation reclassification to income on divestiture	17,305
Amount reclassification to income (remote transaction)	0
Current period other comprehensive income (loss), before tax	(68,371)	24,980	6,269
Tax effect	17	(2,113)	654
Current period other comprehensive income (loss), net of tax	(68,388)	27,093	5,615
Ending balances	(138,870)	(70,482)	(97,575)
Net Gain (Loss) on Cash Flow Hedges
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning balances	(22,427)	(13,007)	(3,297)
Other comprehensive income (loss) before reclassifications, before tax	6,647	(34,689)	(2,731)
Cash flow hedge income (loss), before tax	3,763	22,465	(10,162)
Postretirement benefit liabilities income (loss), before tax	0	0	0
Currency translation reclassification to income on divestiture	0
Amount reclassification to income (remote transaction)	11,012
Current period other comprehensive income (loss), before tax	21,422	(12,224)	(12,893)
Tax effect	5,306	(2,804)	(3,183)
Current period other comprehensive income (loss), net of tax	16,116	(9,420)	(9,710)
Ending balances	$ (6,311)	$ (22,427)	$ (13,007)

Reporting for Segments (Net Sal

Reporting for Segments (Net Sales to External Customers by Segment) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Segment Reporting Information [Line Items]
Net sales	$ 1,126,264	$ 958,954	$ 1,014,457
Functional Coatings
Segment Reporting Information [Line Items]
Net sales	732,063	608,192	644,783
Color Solutions
Segment Reporting Information [Line Items]
Net sales	$ 394,201	$ 350,762	$ 369,674

Reporting for Segments (Narrati

Reporting for Segments (Narrative) (Details)	12 Months Ended
	Dec. 31, 2021country
Segment Reporting [Abstract]
Number of countries other than the U.S. and Germany representing greater than 10% of net sales	0
Number of countries other than the U.S., Mexico, Germany and Columbia representing greater than 10% of long-lived assets	0

Reporting for Segments (Segment

Reporting for Segments (Segment's Gross Profit and Reconciliations to Income Before Income Taxes) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Total gross profit	$ 344,619	$ 293,756	$ 307,976
Selling, general and administrative expenses	217,809	202,413	212,365
Restructuring and impairment charges	14,410	17,425	10,955
Other expense, net	(157)	29,017	41,865
Income before income taxes	112,557	44,901	42,791
Operating Segments
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Total gross profit	344,619	293,756	307,976
Functional Coatings | Operating Segments
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Total gross profit	218,619	175,601	192,668
Color Solutions | Operating Segments
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Total gross profit	128,356	119,071	114,939
Other cost of sales | Operating Segments
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Total gross profit	$ (2,356)	$ (916)	$ 369

Reporting for Segments (Summary

Reporting for Segments (Summary of Segment's Expenditures for Long-Lived Assets) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Segment Reporting Information [Line Items]
Total expenditures for long lived assets	$ 29,959	$ 31,783	$ 64,970
Functional Coatings | Discontinued Operations
Segment Reporting Information [Line Items]
Total expenditures for long lived assets	1,100	4,700	10,000
Corporate Restructuring Charges
Segment Reporting Information [Line Items]
Total expenditures for long lived assets	4,812	1,891	2,069
Operating Segments
Segment Reporting Information [Line Items]
Total expenditures for long lived assets	25,147	29,892	62,901
Operating Segments | Functional Coatings
Segment Reporting Information [Line Items]
Total expenditures for long lived assets	13,826	12,266	46,304
Operating Segments | Color Solutions
Segment Reporting Information [Line Items]
Total expenditures for long lived assets	$ 11,321	$ 17,626	$ 16,597

Reporting for Segments (Summa_2

Reporting for Segments (Summary of Net Sales by Geographic Region) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Segment Reporting Information [Line Items]
Total net sales	$ 1,126,264	$ 958,954	$ 1,014,457
Americas
Segment Reporting Information [Line Items]
Total net sales	374,692	341,461	359,267
Germany
Segment Reporting Information [Line Items]
Total net sales	180,001	143,861	149,270
Other international
Segment Reporting Information [Line Items]
Total net sales	$ 571,571	$ 473,632	$ 505,920

Reporting for Segments (Summa_3

Reporting for Segments (Summary of Long-Lived Assets by Geographic Region) (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Revenues from External Customers and Long-Lived Assets [Line Items]
Total long-lived assets	$ 321,756	$ 330,045
Americas
Revenues from External Customers and Long-Lived Assets [Line Items]
Total long-lived assets	72,140	69,088
Mexico
Revenues from External Customers and Long-Lived Assets [Line Items]
Total long-lived assets	64,903	58,503
Spain
Revenues from External Customers and Long-Lived Assets [Line Items]
Total long-lived assets	37,744	43,811
Germany
Revenues from External Customers and Long-Lived Assets [Line Items]
Total long-lived assets	36,349	39,733
Columbia
Revenues from External Customers and Long-Lived Assets [Line Items]
Total long-lived assets	30,597	30,888
Other international
Revenues from External Customers and Long-Lived Assets [Line Items]
Total long-lived assets	$ 80,023	$ 88,022

Unconsolidated Affiliates Acc_3

Unconsolidated Affiliates Accounted For Under the Equity Method (Narrative) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Related Party Transactions [Abstract]
Investment income from equity-method investments	$ (0.5)	$ 0	$ 0
Equity-method investments	$ 6.4	$ 7.4

Unconsolidated Affiliates Acc_4

Unconsolidated Affiliates Accounted For Under the Equity Method (Summarized Condensed Income Statement) (Details) - Unconsolidated Affiliates - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Schedule of Equity Method Investments [Line Items]
Net sales	$ 11,989	$ 12,444	$ 16,563
Gross profit	1,893	1,150	2,507
Income (loss) from continuing operations	287	(1,362)	(861)
Net income (loss)	$ 229	$ (1,090)	$ (689)

Unconsolidated Affiliates Acc_5

Unconsolidated Affiliates Accounted For Under the Equity Method (Summarized Balance Sheet) (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Schedule of Equity Method Investments [Line Items]
Current assets	$ 539,782	$ 969,804
Current liabilities	(304,149)	(403,616)
Unconsolidated Affiliates
Schedule of Equity Method Investments [Line Items]
Current assets	12,612	12,353
Non-current assets	3,426	3,644
Current liabilities	(2,839)	(1,938)
Non-current liabilities	$ (155)	$ (27)

Unconsolidated Affiliates Acc_6

Unconsolidated Affiliates Accounted For Under the Equity Method (Transactions with Equity-Method Investees) (Details) - Unconsolidated Affiliates - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Schedule of Equity Method Investments [Line Items]
Sales	$ 4,226	$ 11,013	$ 7,308
Purchases	9	146	316
Dividends and interest received	192	144	154
Commission and royalties received	0	108	363
Commissions and royalties paid	$ 10	$ 12	$ 11

SCHEDULE_II__ VALUATION And Q_2

SCHEDULE II — VALUATION And QUALIFYING ACCOUNTS And RESERVES (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
SEC Schedule, 12-09, Valuation and Qualifying Accounts Disclosure [Line Items]
Valuation allowance release	$ 100	$ 100	$ 5,400
Allowance for Possible Losses on Collection of Accounts Receivable
SEC Schedule, 12-09, Valuation and Qualifying Accounts Disclosure [Line Items]
Balance at Beginning of Period	2,320	1,938	5,504
Additions Charged (Reductions Credited) to Costs and Expenses	1,050	530	1,086
Deductions	(1,048)	(205)	(4,487)
Adjustment for Differences in Exchange Rates	(362)	57	(165)
Balance at End of Period	1,960	2,320	1,938
Valuation Allowance on Net Deferred Tax Assets
SEC Schedule, 12-09, Valuation and Qualifying Accounts Disclosure [Line Items]
Balance at Beginning of Period	11,680	11,434	25,596
Additions Charged (Reductions Credited) to Costs and Expenses	4,753	215	0
Deductions	(1,325)	(84)	(13,978)
Adjustment for Differences in Exchange Rates	(1,622)	115	(184)
Balance at End of Period	$ 13,486	$ 11,680	$ 11,434