Superior Industries International (SUP) 10-K 3 Mar 22 2021 FY Annual report Financial data

Document and Entity Information

Document and Entity Information - USD ($)	12 Months Ended
	Dec. 31, 2021	Feb. 24, 2022	Jun. 30, 2021
Cover [Abstract]
Document Type	10-K
Amendment Flag	false
Document Period End Date	Dec. 31, 2021
Document Fiscal Year Focus	2021
Document Fiscal Period Focus	FY
Trading Symbol	SUP
Entity Registrant Name	SUPERIOR INDUSTRIES INTERNATIONAL, INC.
Entity Central Index Key	0000095552
Current Fiscal Year End Date	--12-31
Entity Well-known Seasoned Issuer	No
Entity Current Reporting Status	Yes
Entity Voluntary Filers	No
Entity Interactive Data Current	Yes
Entity Filer Category	Accelerated Filer
Entity Common Stock, Shares Outstanding		26,163,077
Entity Public Float			$ 225,046,322
Smaller Reporting Company	true
Entity Emerging Growth Company	false
ICFR Auditor Attestation Flag	true
Title of 12(b) Security	Common Stock, $0.01 par value
Security Exchange Name	NYSE
Entity Shell Company	false
Entity File Number	1-6615
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	95-2594729
Entity Address, Address Line One	26600 Telegraph Road
Entity Address, Address Line Two	Suite 400
Entity Address, City or Town	Southfield
Entity Address, State or Province	MI
Entity Address, Postal Zip Code	48033
City Area Code	248
Local Phone Number	352-7300
Document Annual Report	true
Document Transition Report	false
Documents Incorporated by Reference	DOCUMENTS INCORPORATED BY REFERENCE
Auditor Firm Id	34
Auditor Name	Deloitte & Touche LLP
Auditor Location	Detroit, Michigan

Consolidated Statements of Inco

Consolidated Statements of Income (Loss) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Income Statement [Abstract]
NET SALES	$ 1,384,750	$ 1,100,760
Cost of sales	1,270,035	1,035,134
GROSS PROFIT	114,715	65,626
Selling, general and administrative expenses	59,339	52,420
Impairment of goodwill and indefinite-lived intangibles		193,641
INCOME (LOSS) FROM OPERATIONS	55,376	(180,435)
Interest expense, net	(41,879)	(45,418)
Other expense, net	(2,306)	(2,827)
INCOME (LOSS) BEFORE INCOME TAXES	11,191	(228,680)
Income tax provision	(7,437)	(14,881)
NET INCOME (LOSS)	$ 3,754	$ (243,561)
LOSS PER SHARE – BASIC	$ (1.17)	$ (10.81)
LOSS PER SHARE – DILUTED	$ (1.17)	$ (10.81)

Consolidated Statements of Comp

Consolidated Statements of Comprehensive Income (Loss) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Statement Of Income And Comprehensive Income [Abstract]
Net income (loss)	$ 3,754	$ (243,561)
Other comprehensive (loss) income, net of tax:
Foreign currency translation (loss) gain	(20,529)	14,197
Change in unrecognized (losses) gains on derivative instruments:
Change in fair value of derivatives	(8,370)	(13,453)
Tax benefit	1,057	1,764
Change in unrecognized losses on derivative instruments, net of tax	(7,313)	(11,689)
Defined benefit pension plan:
Actuarial gains (losses) on pension obligation, net of amortization	1,314	(1,876)
Pension changes, net of tax	1,314	(1,876)
Other comprehensive (loss) income, net of tax	(26,528)	632
Comprehensive loss	$ (22,774)	$ (242,929)

Consolidated Balance Sheets

Consolidated Balance Sheets - USD ($)	Dec. 31, 2021	Dec. 31, 2020
Current assets:
Cash and cash equivalents	$ 113,473,000	$ 152,423,000
Accounts receivable, net	83,447,000	48,995,000
Inventories, net	172,099,000	154,980,000
Income taxes receivable	4,957,000	4,957,000
Other current assets	30,279,000	22,301,000
Total current assets	404,255,000	383,656,000
Property, plant and equipment, net	494,401,000	522,124,000
Deferred income tax assets, net	27,715,000	30,860,000
Goodwill		0
Intangibles, net	76,870,000	110,796,000
Other non-current assets	50,906,000	61,889,000
Total assets	1,054,147,000	1,109,325,000
Current liabilities:
Accounts payable	153,197,000	151,839,000
Short-term debt	6,081,000	6,112,000
Accrued expenses	71,525,000	71,079,000
Income taxes payable	1,076,000	2,107,000
Total current liabilities	231,879,000	231,137,000
Long-term debt (less current portion)	602,355,000	625,492,000
Non-current income tax liabilities	8,289,000	7,635,000
Deferred income tax liabilities, net	3,913,000	9,104,000
Other non-current liabilities	77,089,000	76,426,000
Commitments and contingent liabilities (Note 19)
Mezzanine equity:
Preferred stock, $0.01 par value Authorized - 1,000,000 shares Issued and outstanding 150,000 shares outstanding at December 31, 2021 and December 31, 2020	199,897,000	179,387,000
European non-controlling redeemable equity	1,146,000	1,666,000
Shareholders’ deficit:
Common stock, $0.01 par value Authorized - 100,000,000 shares Issued and outstanding 26,163,077 and 25,591,930 shares at December 31, 2021 and December 31, 2020	103,214,000	95,247,000
Accumulated other comprehensive loss	(125,974,000)	(99,446,000)
Retained earnings	(47,661,000)	(17,323,000)
Total shareholders’ deficit	(70,421,000)	(21,522,000)
Total liabilities, mezzanine equity and shareholders’ deficit	$ 1,054,147,000	$ 1,109,325,000

Consolidated Balance Sheets (Pa

Consolidated Balance Sheets (Parenthetical) - $ / shares	Dec. 31, 2021	Dec. 31, 2020
Statement Of Financial Position [Abstract]
Preferred stock, par value	$ 0.01	$ 0.01
Preferred stock, shares authorized	1,000,000	1,000,000
Preferred stock, shares issued	150,000	150,000
Preferred stock, shares outstanding	150,000	150,000
Common stock, par value	$ 0.01	$ 0.01
Common stock, shares authorized	100,000,000	100,000,000
Common stock, shares issued	26,163,077	25,591,930
Common stock, shares outstanding	26,163,077	25,591,930

Consolidated Statements of Shar

Consolidated Statements of Shareholders' Equity (Deficit) - USD ($) $ in Thousands	Total	Common Stock	Unrecognized Gains (Losses) on Derivative Instruments	Pension Obligations	Cumulative Translation Adjustment	Retained Earnings
Beginning of period at Dec. 31, 2019	$ 251,690	$ 93,331	$ 9,951	$ (5,571)	$ (104,458)	$ 258,437
Beginning of the period (in shares) at Dec. 31, 2019		25,128,158
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	(243,561)					(243,561)
Change in unrecognized gains/(losses) on derivative instruments, net of tax	(11,689)		(11,689)
Change in defined benefit plans, net of taxes	(1,876)			(1,876)
Net foreign currency translation adjustment	14,197				14,197
Common stock issued, net of shares withheld for employee taxes (in shares)		463,772
Stock-based compensation	1,916	$ 1,916
Redeemable preferred 9% dividend and accretion	(31,994)					(31,994)
European non-controlling redeemable equity dividend	(205)					(205)
End of period at Dec. 31, 2020	$ (21,522)	$ 95,247	(1,738)	(7,447)	(90,261)	(17,323)
End of the period (in shares) at Dec. 31, 2020	25,591,930	25,591,930
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	$ 3,754					3,754
Change in unrecognized gains/(losses) on derivative instruments, net of tax	(7,313)		(7,313)
Change in defined benefit plans, net of taxes	1,314			1,314
Net foreign currency translation adjustment	(20,529)				(20,529)
Common stock issued, net of shares withheld for employee taxes (in shares)		571,147
Stock-based compensation	7,967	$ 7,967
Redeemable preferred 9% dividend and accretion	(34,050)					(34,050)
European non-controlling redeemable equity dividend	(42)					(42)
End of period at Dec. 31, 2021	$ (70,421)	$ 103,214	$ (9,051)	$ (6,133)	$ (110,790)	$ (47,661)
End of the period (in shares) at Dec. 31, 2021	26,163,077	26,163,077

Consolidated Statements of Sh_2

Consolidated Statements of Shareholders' Equity (Deficit) (Parenthetical)	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Statement Of Stockholders Equity [Abstract]
Preferred stock, dividend rate, percentage	9.00%	9.00%

Consolidated Statements of Cash

Consolidated Statements of Cash Flows - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
CASH FLOWS FROM OPERATING ACTIVITIES:
Net income (loss)	$ 3,754	$ (243,561)
Adjustments to reconcile net income (loss) to net cash provided by operating activities:
Depreciation and amortization	99,635	98,178
Income tax, non-cash changes	(1,958)	7,489
Impairment of goodwill and indefinite-lived intangibles		193,641
Stock-based compensation	9,479	2,374
Amortization of debt issuance costs	4,436	4,020
Other non-cash items	(10,505)	5,776
Accounts receivable	(38,233)	28,052
Inventories	(26,371)	20,921
Other assets and liabilities	6,607	11,257
Accounts payable	(1,691)	24,523
Income taxes	(268)	(2,549)
NET CASH PROVIDED BY OPERATING ACTIVITIES	44,885	150,121
CASH FLOWS FROM INVESTING ACTIVITIES:
Additions to property, plant, and equipment	(64,113)	(45,038)
Proceeds from sale of fixed assets	6,589	859
NET CASH USED IN INVESTING ACTIVITIES	(57,524)	(44,179)
CASH FLOWS FROM FINANCING ACTIVITIES:
Proceeds from issuance of long-term debt	1,658	11,690
Repayments of debt	(4,967)	(25,672)
Proceeds from borrowings on revolving credit facility		313,825
Repayments of borrowings on revolving credit facility		(316,910)
Cash dividends paid	(13,543)	(13,555)
Financing costs paid and other	(4,340)	(5,020)
Payments related to tax withholdings for stock-based compensation	(1,512)	(458)
Finance lease payments	(1,321)	(960)
NET CASH USED IN FINANCING ACTIVITIES	(24,025)	(37,060)
Effect of exchange rate changes on cash	(2,286)	5,614
Net (decrease) increase in cash and cash equivalents	(38,950)	74,496
Cash and cash equivalents at the beginning of the period	152,423	77,927
Cash and cash equivalents at the end of the period	$ 113,473	$ 152,423

Summary of Significant Accounti

Summary of Significant Accounting Policies	12 Months Ended
	Dec. 31, 2021
Accounting Policies [Abstract]
Summary of Significant Accounting Policies	NOTE 1 - SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES Nature of Operations Superior Industries International, Inc.’s (referred to herein as the “Company,” “Superior,” or “we,” “us” and “our”) principal business is the design and manufacture of aluminum wheels for sale to original equipment manufacturers (“OEMs”) in North America and Europe and to the aftermarket in Europe. We employ approximately 7,800 full-time employees, operating in eight manufacturing facilities in North America and Europe. We are one of the largest aluminum wheel suppliers to global OEMs and we believe we are the #1 European aluminum wheel aftermarket manufacturer and supplier. Our OEM aluminum wheels accounted for approximately 91 percent of our sales in 2021 and are primarily sold for factory installation on vehicle models manufactured by BMW (including Mini), Daimler (Mercedes-Benz, AMG, Smart), Ford, GM, Honda, Jaguar-Land Rover, Lucid Motors, Mazda, Nissan, PSA, Renault, customer base consisting of North American, European and Asian OEMs. Presentation of Consolidated Financial Statements The consolidated financial statements include the accounts of the Company and its wholly owned subsidiaries. All intercompany transactions are eliminated in consolidation. Accounting estimates are an integral part of the consolidated financial statements. These estimates require the use of judgments and assumptions that affect the reported amounts of assets and liabilities, the disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses in the periods presented. We believe that the accounting estimates employed are appropriate and the resulting balances are reasonable; however, due to the inherent uncertainties in developing estimates, actual results could differ from the original estimates, requiring adjustments to these balances in future periods. Certain prior year amounts have been reclassified to conform with the current year presentation. Cash and Cash Equivalents Cash and cash equivalents generally consist of cash, certificates of deposit, fixed deposits and money market funds with original maturities of three months or less. Derivative Financial Instruments and Hedging Activities Our derivatives are over-the counter customized derivative instruments and are not exchange traded. We account for our derivative instruments as either assets or liabilities and adjust them to fair value each period. For derivative instruments that hedge the exposure to variability in expected future cash flows that are designated as cash flow hedges, the gain or loss on the derivative instrument is recorded in accumulated other comprehensive income or loss in shareholders’ equity or deficit until the hedged item is recognized in earnings, at which point accumulated gains or losses are recognized in earnings and classified with the underlying hedged transaction. Derivatives that do not qualify or have not been designated as hedges are adjusted to fair value through earnings in the financial statement line item to which the derivative relates (refer to Note 4, “Derivative Financial Instruments” for additional information pertaining to our derivative instruments). We enter into contracts to purchase certain commodities used in the manufacture of our products, such as aluminum, natural gas and electricity. These contracts are considered to be derivative instruments under U.S. GAAP; however, these purchase contracts are not accounted for as derivatives because they qualify for the normal purchase normal sale exemption. Accounts Receivable Accounts receivable primarily consists of amounts that are due and payable from our customers for the sale of aluminum wheels. We evaluate the collectability of receivables each reporting period and record an allowance for doubtful accounts representing our estimate of probable losses. Additions to the allowance are charged to bad debt expense reported in selling, general and administrative expenses. Inventory Inventories, which are categorized as raw materials, work-in-process or finished goods, are stated at the lower of cost or net realizable value. The cost of inventories is measured using the FIFO (first-in, first-out) method or the average cost method. Inventories are reviewed to determine if inventory quantities are in excess of forecasted usage or if they have become obsolete. Aluminum is the primary material component in our inventories. In 2021 and 2020, the Company had two and three Property, Plant and Equipment Property, plant and equipment are carried at cost, less accumulated depreciation. The cost of additions, improvements and interest during construction, if any, are capitalized. Our maintenance and repair costs are charged to expense when incurred. Depreciation is calculated generally on the straight-line method based on the estimated useful lives of the assets. Classification Expected Useful Life Buildings 15 to 50 years Machinery and equipment 3 to 20 years Leasehold improvements Lease term When property, plant and equipment is replaced, retired or otherwise disposed, the cost and related accumulated depreciation are removed and any resulting gain or loss on the disposition of an operating asset is included in income or loss from operations and is classified as a part of selling, general and administrative expenses. Any gain or loss on the disposition of a non-operating asset, as well as any casualty gain or loss, is included in other income or expense. Impairment of Long-Lived Assets The carrying amount of long-lived assets to be held and used in the business is evaluated for impairment whenever facts and circumstances suggest that the carrying value of the assets may not be recoverable An impairment loss occurs when the carrying value of an asset group (including the carrying value of liabilities associated with the long-lived assets within the asset group) exceeds the undiscounted cash flows expected to be realized from the use and eventual disposition of the respective long-lived assets. An the lowest level for which identifiable cash flows are largely independent of the cash flows of other asset groups Fair value is determined primarily by discounting the estimated expected cash flows. If the carrying amount of an asset group is impaired, a loss is recognized based on the amount by which the carrying value exceeds fair value. The Company’s asset groups consist of the North American and European reportable segments. Goodwill Goodwill is not amortized but is tested for impairment on at least an annual basis. Impairment testing is required more often than annually if an event or circumstance indicates that an impairment is more likely than not to have occurred. If the net book value of a reporting unit exceeds its fair value, an impairment loss is measured and recognized. We conduct our annual impairment testing as of December 31. Impairment charges, if any, related to goodwill are recorded as a separate charge included in income or loss from operations. In the first quarter of 2020 and fourth quarter of 2019, we recognized goodwill impairment charges of $182.6 million and $99.5 million, respectively, relating to our European reporting unit Intangible Assets Intangible assets include both finite and indefinite-lived intangible assets. Finite-lived intangible assets consist of brand names, technology and customer relationships. Finite-lived intangible assets are amortized on a straight-line basis over their estimated useful lives (since the pattern in which the asset will be consumed cannot be reliably determined). Indefinite-lived intangible assets, excluding goodwill, consist of trade names associated with our aftermarket business. Impairment charges, if any, related to intangible assets are recorded as a separate charge included in income or loss from operations. In the first quarter of 2020 and fourth quarter of 2019, we recognized indefinite-lived intangible asset impairment charges of $11.0 million and $2.7 million, respectively, relating to trade names used in our European aftermarket busines Foreign Currency Transactions and Translation The assets and liabilities of foreign subsidiaries that use local currency as their functional currency are translated to U.S. dollars based on the current exchange rate prevailing at each balance sheet date and any resulting translation adjustments are included in accumulated other comprehensive income or loss. The assets and liabilities of foreign subsidiaries whose local currency is not their functional currency are remeasured from their local currency to their functional currency and then translated to U.S. dollars. Revenues and expenses are translated into U.S. dollars using the average exchange rates prevailing for each period presented. Gains and losses arising from foreign currency transactions and the effects of remeasurement discussed in the preceding paragraph are recorded in other income or expense. We recognized foreign currency transaction gains (losses) of $0.3 million and $(2.4) million in 2021 and 2020, respectively. Revenue Recognition Revenue is recognized when performance obligations under our contracts are satisfied. Generally, this occurs upon shipment when control of products transfers to our customers. At this point, revenue is recognized in an amount reflecting the consideration we expect to be entitled to under the terms of our contract. The Company maintains long term business relationships with our OEM customers and aftermarket distributors; however, there are no definitive long-term volume commitments under these arrangements. Volume commitments are limited to near-term customer requirements authorized under purchase orders or production releases generally with delivery periods of approximately one month. Sales do not involve any significant financing component since customer payment is generally due 40-60 days after shipment. Contract assets and liabilities consist of customer receivables and deferred revenues related to tooling. At contract inception, the Company assesses goods and services promised in its contracts with customers and identifies a performance obligation for each promise to deliver a good or service (or bundle of goods or services) that is distinct. Principal performance obligations under our customer contracts consist of the manufacture and delivery of aluminum wheels, including production wheels, service wheels and replacement wheels. As a part of the manufacture of the wheels, we develop tooling necessary to produce the wheels. Accordingly, tooling costs, which are explicitly recoverable from our customers, are capitalized as preproduction costs and amortized to cost of sales over the average life of the vehicle wheel program. Similarly, customer reimbursement for tooling costs is deferred and amortized to net sales over the average life of the vehicle wheel program. In the normal course of business, the Company’s warranties are limited to product specifications and the Company does not accept product returns unless the item is defective as manufactured. Accordingly, warranty costs are treated as a cost of fulfillment subject to accrual, rather than a performance obligation. The Company establishes provisions for both estimated returns and warranty when revenue is recognized. In addition, the Company does not typically provide customers with the right to a refund but provides for product replacement. Prices allocated to production, service and replacement wheels are based on prices established in our customer purchase orders which represent the standalone selling price. Prices for service and replacement wheels are commensurate with production wheels with adjustment for any special packaging. In addition, prices are subject to adjustment for changes in commodity prices for aluminum, as well as production efficiencies and wheel weight variations from specifications used in pricing. These price adjustments are treated as variable consideration. Customer tooling reimbursement is generally based on quoted prices or cost not to exceed quoted prices. We estimate variable consideration by using the “most likely” amount estimation approach. For commodity prices, initial estimates are based on the commodity index at contract inception. Changes in commodity prices are monitored and revenue is adjusted as changes in the commodity index occur. Prices incorporate the wheel weight price component based on product specifications. Weights are monitored, and prices are adjusted as variations arise. Price adjustments due to production efficiencies are generally recognized as and when negotiated with customers. Customer contract prices are generally adjusted quarterly to incorporate price adjustments. Under the Company’s policies, shipping costs are treated as a cost of fulfillment. In addition, the Company does not disclose remaining performance obligations under its contracts since contract terms are substantially less than a year (generally less than one month). Our revenue recognition practices and related transactions and balances are further described in Note 2, “Revenue.” Stock-Based Compensation We account for stock-based compensation using the estimated fair value recognition method. We recognize these compensation costs net of the applicable forfeiture rate on a straight-line basis for only those shares expected to vest over the requisite service period of the award, which is generally the vesting term of three years. We estimate the forfeiture rate based on our historical experience. Refer to Note 18, “Stock-Based Compensation” for additional information concerning our stock-based compensation awards. Income Taxes We account for income taxes using the asset and liability method. The asset and liability method requires the recognition of deferred tax assets and liabilities for expected future tax consequences of temporary differences that currently exist between the tax basis and financial reporting basis of our assets and liabilities. We calculate current and deferred tax provisions based on estimates and assumptions that could differ from actual results reflected on the income tax returns filed during the following years. Adjustments based on filed returns are recorded when identified in the subsequent years. The effect on deferred taxes of a change in tax rates is recognized in income in the period that the tax rate change is enacted. The ability to realize deferred tax assets depends on the ability to generate sufficient taxable income in the future. We account for uncertain tax positions utilizing a two-step approach to evaluate tax positions. Step one, recognition, requires evaluation of the tax position to determine if based solely on technical merits it is more likely than not to be sustained upon examination. Step two, measurement, is addressed only if a position is more likely than not to be sustained. In step two, the tax benefit is measured as the largest amount of benefit, determined on a cumulative probability basis, which is more likely than not to be realized upon ultimate settlement with tax authorities. If a position does not meet the more likely than not threshold for recognition in step one, no benefit is recorded until the first subsequent period in which the more likely than not standard is met, the issue is resolved with the taxing authority, or the statute of limitations expires. Positions previously recognized are derecognized when we subsequently determine the position no longer is more likely than not to be sustained. Evaluation of tax positions, their technical merits, and measurements using cumulative probability are highly subjective management estimates. Actual results could differ materially from these estimates. In 2021 and 2020, we have provided deferred income taxes for the estimated U.S. federal and state income tax, foreign income tax and applicable withholding taxes on unremitted earnings of subsidiaries. Cash Paid for Interest and Taxes and Non-Cash Investing Activities Cash paid for interest was $36.7 million and $39.6 million, respectively, for the years ended December 31, 2021 and 2020. Cash paid for income taxes was $10.5 million and $7.3 million for the years ended December 31, 2021 and 2020, respectively. As of December 31, 2021 and 2020, we had purchased but not yet paid for equipment of $11.2 million and $0.9 million, respectively, which are included in accounts payable and accrued expenses in our consolidated balance sheets. Accounting Standards Issued But Not Yet Adopted Accounting Standards Update (ASU) 2016-13, “Financial Instruments – Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments.” In June 2016, the Financial Accounting Standards Board (“FASB”) issued ASU 2016-13 which requires entities to use a new impairment model based on current expected credit losses (“CECL”) rather than incurred losses. Under CECL, estimated credit losses would incorporate relevant information about past events, current conditions and reasonable and supportable forecasts and any expected credit losses would be recognized at the time of sale. As a smaller reporting company (as defined under SEC regulations), the Company is not required to adopt the standard until fiscal years beginning after December 31, 2022. We are evaluating the impact this standard will have on our financial statements and disclosures. ASU 2021-10, “Government Assistance (Topic 832): Disclosures by Business Entities about Government Assistance.” In November 2021, the FASB issued ASU 2021-10 which requires entities to disclose information about transactions with a government that are accounted for by applying a grant or contribution accounting model by analogy. Disclosures under ASU 2021-10 include: information about the nature of the transactions and the related accounting policy used to account for the transactions, the financial statement line items affected by the transactions, and the amounts applicable to each financial statement line item and significant terms and conditions of the transactions, including commitments and contingencies. ASU 2021-10 is effective for annual periods beginning after December 15, 2021 and early application is permitted. ASU 2021-10 may be applied either prospectively to all transactions within its scope that are reflected in financial statements at the date of initial application and new transactions entered into thereafter or retrospectively to those transactions. We are evaluating the impact this ASU will have on our financial statements and disclosures.

Revenue

Revenue	12 Months Ended
	Dec. 31, 2021
Revenue From Contract With Customer [Abstract]
Revenue	NOTE 2 - REVENUE The Company disaggregates revenue from contracts with customers into our reportable segments, North America and Europe. Revenues by segment for the years ended December 31, 2021 and 2020 are summarized in Note 5, “Business Segments”. The opening and closing balances of the Company’s receivables and current and long-term contract liabilities are as follows: December 31, 2021 December 31, 2020 Change (Dollars in thousands) Customer receivables $ 74,887 $ 40,785 $ 34,102 Contract liabilities—current 6,887 8,249 (1,362 ) Contract liabilities—noncurrent 10,526 13,106 (2,580 ) The changes in the contract liability balances primarily result from timing differences between our performance and customer payment while the increase in customer receivables is primarily due to the increase in year-over-year aluminum prices. During the years ended December 31, 2021 and 2020, the Company recognized tooling reimbursement revenue of $13.1 million and $13.1 million, respectively, which had been deferred in prior periods and was previously included in contract liability (deferred revenue), as well as revenue on tooling invoiced, deferred and partially recognized in 2021. During the year ended December 31, 2021 and 2020, the Company recognized revenue of $2.6 million and $0.7 million, respectively, from obligations satisfied in prior periods as a result of adjustments to pricing estimates for production efficiencies and other revenue adjustments.

Fair Value Measurements

Fair Value Measurements	12 Months Ended
	Dec. 31, 2021
Fair Value Disclosures [Abstract]
Fair Value Measurements	NOTE 3 - FAIR VALUE MEASUREMENTS The Company applies fair value accounting for all financial assets and liabilities and non-financial assets and liabilities that are required to be recognized or disclosed at fair value in the financial statements on a recurring basis, while other assets and liabilities are measured at fair value on a nonrecurring basis, such as an asset impairment. Fair value is estimated by applying the following hierarchy, which prioritizes the inputs used to measure fair value into three levels and bases the categorization within the hierarchy upon the lowest level of input that is available and significant to the fair value measurement: Level 1 - Quoted prices in active markets for identical assets or liabilities. Level 2 - Observable inputs other than quoted prices in active markets for identical assets and liabilities, quoted prices for identical or similar assets or liabilities in inactive markets, or other inputs that are observable or can be corroborated by observable market data for substantially the full term of the assets or liabilities. Level 3 - Inputs that are generally unobservable and typically reflect management’s estimate of assumptions that market participants would use in pricing the asset or liability. The carrying amounts for cash and cash equivalents, accounts receivable, accounts payable and accrued expenses approximate their fair values due to the short period of time until maturity. Derivative Financial Instruments Our derivatives are over-the-counter customized derivative instruments and are not exchange traded. We estimate the fair value of these instruments using the income valuation approach. Under this approach, we project future cash flows and discount the future amounts to a present value using market-based expectations for interest rates, foreign exchange rates, commodity prices and the contractual terms of the derivative instruments. The discount rate used is the relevant interbank deposit rate (e.g., LIBOR) plus an adjustment for non-performance risk. The following tables categorize items measured at fair value at December 31, 2021 and 2020: Fair Value Measurement at Reporting Date Using December 31, 2021 Quoted Prices in Active Markets for Identical Assets (Level 1) Significant Other Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3) (Dollars in thousands) Assets Derivative contracts $ 10,362 $ — $ 10,362 $ — Total $ 10,362 $ — $ 10,362 $ — Liabilities . Derivative contracts $ 19,711 $ — $ 19,711 $ — Total $ 19,711 $ — $ 19,711 $ — Fair Value Measurement at Reporting Date Using December 31, 2020 Quoted Prices in Active Markets for Identical Assets (Level 1) Significant Other Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3) (Dollars in thousands) Assets Derivative contracts $ 10,218 $ — $ 10,218 $ — Total $ 10,218 $ — $ 10,218 $ — Liabilities . Derivative contracts $ 15,259 $ — $ 15,259 $ — Total $ 15,259 $ — $ 15,259 $ — Debt Instruments The carrying values of the Company’s debt instruments vary from their fair values. The fair values were determined by reference to transacted prices and quotes for these securities (Level 2). The estimated fair value, as well as the carrying value, of the Company’s debt instruments are shown below: December 31, 2021 December 31, 2020 (Dollars in thousands) Estimated aggregate fair value $ 605,874 $ 624,207 Aggregate carrying value (1) 616,215 643,184 (1) Total debt excluding the impact of unamortized debt issuance costs.

Derivative Financial Instrument

Derivative Financial Instruments	12 Months Ended
	Dec. 31, 2021
Derivative Instruments And Hedging Activities Disclosure [Abstract]
Derivative Financial Instruments	NOTE 4 - DERIVATIVE FINANCIAL INSTRUMENTS Derivative Instruments and Hedging Activities We use derivatives to partially offset our exposure to foreign currency, interest rate, aluminum and other commodity risks. We may enter into forward contracts, option contracts, swaps, collars or other derivative instruments to offset some of the risk on expected future cash flows and on certain existing assets and liabilities. However, we may choose not to hedge certain exposures for a variety of reasons including, but not limited to, accounting considerations and the prohibitive economic cost of hedging particular exposures. There can be no assurance the hedges will fully offset the financial impact resulting from movements in foreign currency exchange rates, interest rates, and aluminum and other commodity prices. To help mitigate gross margin fluctuations due to changes in foreign currency exchange rates, certain of our subsidiaries, whose functional currency is the U.S. dollar or the Euro, hedge a portion of their forecasted foreign currency costs denominated in the Mexican Peso and Polish Zloty, respectively. We may hedge portions of our forecasted foreign currency exposure up to 48 months. The following tables display the fair value of derivatives by balance sheet line item at December 31, 2021 and December 31, 2020: December 31, 2021 Other Current Assets Other Non-current Assets Accrued Liabilities Other Non-current Liabilities (Dollars in thousands) Foreign exchange forward contracts designated as hedging instruments $ 3,161 $ 2,194 $ 1,845 $ 13,565 Foreign exchange forward contracts not designated as hedging instruments 579 — 3 — Aluminum forward contracts designated as hedging instruments 2,677 39 — — Natural gas forward contracts designated as hedging instruments 1,294 418 135 276 Interest rate swap contracts designated as hedging instruments — — 3,887 — Total derivative financial instruments $ 7,711 $ 2,651 $ 5,870 $ 13,841 December 31, 2020 Other Current Assets Other Non-current Assets Accrued Liabilities Other Non-current Liabilities (Dollars in thousands) Foreign exchange forward contracts designated as hedging instruments $ 1,218 $ 6,531 $ 3,435 $ 2,645 Foreign exchange forward contracts not designated as hedging instruments 1,167 — 122 — Aluminum forward contracts designated as hedging instruments 262 — — — Natural gas forward contracts designated as hedging instruments 816 224 22 70 Interest rate swap contracts designated as hedging instruments — — 4,771 4,194 Total derivative financial instruments $ 3,463 $ 6,755 $ 8,350 $ 6,909 The following table summarizes the notional amount and estimated fair value of our derivative financial instruments: December 31, 2021 December 31, 2020 Notional U.S. Dollar Amount Fair Value Notional U.S. Dollar Amount Fair Value (Dollars in thousands) Foreign exchange forward contracts designated as hedging instruments $ 458,769 $ (10,055 ) $ 421,253 $ 1,669 Foreign exchange forward contracts not designated as hedging instruments 24,419 576 71,217 1,045 Aluminum forward contracts designated as hedging instruments 37,609 2,716 4,068 262 Natural gas forward contracts designated as hedging instruments 8,915 1,301 5,523 948 Interest rate swap contracts designated as hedging instruments 200,000 (3,887 ) 200,000 (8,965 ) Total derivative financial instruments $ 729,712 $ (9,349 ) $ 702,061 $ (5,041 ) Notional amounts are presented on a net basis. The notional amounts of the derivative financial instruments do not represent amounts exchanged by the parties and, therefore, are not a direct measure of our exposure to the financial risks described above. The amounts exchanged are calculated by reference to the notional amounts and by other terms of the derivatives, such as interest rates, foreign currency exchange rates or commodity prices. The following tables summarize the gain or loss recognized in accumulated other comprehensive income or loss (“AOCI”), the amounts reclassified from AOCI into earnings, and the amounts recognized directly into earnings for the years ended December 31, 2021 and 2020: Year Ended December 31, 2021 Amount of Gain or (Loss) Recognized in AOCI on Derivatives Amount of Pre-tax Gain or (Loss) Reclassified from AOCI into Income Amount of Pre-tax Gain or (Loss) Recognized in Income on Derivatives (Dollars in thousands) Derivative contracts $ (7,313 ) $ 4,106 $ (1,047 ) Total $ (7,313 ) $ 4,106 $ (1,047 ) Year Ended December 31, 2020 Amount of Gain or (Loss) Recognized in AOCI on Derivatives Amount of Pre-tax Gain or (Loss) Reclassified from AOCI into Income Amount of Pre-tax Gain or (Loss) Recognized in Income on Derivatives (Dollars in thousands) Derivative contracts $ (11,689 ) $ (8,365 ) $ 2,098 Total $ (11,689 ) $ (8,365 ) $ 2,098

Business Segments

Business Segments	12 Months Ended
	Dec. 31, 2021
Segment Reporting [Abstract]
Business Segments	NOTE 5 - BUSINESS SEGMENTS Our North American and European operations represent separate operating segments in view of significantly different markets, customers, and products between these regions. Within each of these regions, markets, customers, products, and production processes are similar. Moreover, our business within each region leverages common systems, processes, and infrastructure. Accordingly, North America and Europe comprise the Company’s reportable segments. Net Sales Income (Loss) from Operations Year Ended December 31, 2021 2020 2021 2020 (Dollars in thousands) North America $ 744,904 $ 550,079 $ 50,798 $ 8,872 Europe 639,846 550,681 4,578 (189,307 ) $ 1,384,750 $ 1,100,760 $ 55,376 $ (180,435 ) Depreciation and Amortization Capital Expenditures Year Ended December 31, 2021 2020 2021 2020 (Dollars in thousands) North America $ 36,243 $ 34,935 $ 30,005 $ 24,929 Europe 63,392 63,243 34,108 20,109 $ 99,635 $ 98,178 $ 64,113 $ 45,038 Property, Plant and Equipment, net Goodwill and Intangible Assets Year Ended December 31, 2021 2020 2021 2020 (Dollars in thousands) North America $ 214,331 $ 220,145 $ — $ — Europe 280,070 301,979 76,870 110,796 $ 494,401 $ 522,124 $ 76,870 $ 110,796 Total Assets Year Ended December 31, 2021 2020 (Dollars in thousands) North America $ 499,988 $ 479,873 Europe 554,159 629,452 $ 1,054,147 $ 1,109,325 Geographic information See table below for our net sales and long-lived assets by location: Net Sales Property, Plant and Equipment, net Year Ended December 31, 2021 2020 2021 2020 (Dollars in thousands) U.S. $ 8,166 $ 27,919 $ 2,152 $ 7,324 Mexico 736,738 522,160 212,179 212,821 Germany 227,887 212,689 76,849 82,162 Poland 411,959 337,992 203,221 219,817 $ 1,384,750 $ 1,100,760 $ 494,401 $ 522,124

Accounts Receivable

Accounts Receivable	12 Months Ended
	Dec. 31, 2021
Receivables [Abstract]
Accounts Receivable	NOTE 6 - ACCOUNTS RECEIVABLE Year Ended December 31, 2021 2020 (Dollars in thousands) Trade receivables $ 75,713 $ 41,647 Other receivables 8,560 8,211 84,273 49,858 Allowance for doubtful accounts (826 ) (863 ) Accounts receivable, net $ 83,447 $ 48,995 The accounts receivable from GM, VW Group and Ford represented approximately 10 percent, 10 percent and 9 percent of the total accounts receivable, respectively, at December 31, 2021 and 11 percent, 5 percent and 3 percent of the total accounts receivable, respectively, at December 31, 2020. The related percentage of our total sales to each of these three customers is shown below: 2021 Percent of Sales 2020 Percent of Sales GM 26 % 24 % VW Group 14 % 16 % Ford 13 % 11 %

Inventories

Inventories	12 Months Ended
	Dec. 31, 2021
Inventory Disclosure [Abstract]
Inventories	NOTE 7 - INVENTORIES Year Ended December 31, 2021 2020 (Dollars in thousands) Raw materials $ 47,392 $ 46,712 Work in process 54,891 45,394 Finished goods 69,816 62,874 Inventories, net $ 172,099 $ 154,980 Service wheel and supplies inventory included in other non-current assets in the consolidated balance sheets totaled $9.7 million and $12.1 million at December 31, 2021 and 2020, respectively.

Property, Plant and Equipment

Property, Plant and Equipment	12 Months Ended
	Dec. 31, 2021
Property Plant And Equipment [Abstract]
Property, Plant and Equipment	NOTE 8 - PROPERTY, PLANT AND EQUIPMENT December 31, 2021 December 31, 2020 (Dollars in thousands) Land and buildings $ 129,826 $ 149,295 Machinery and equipment 861,097 899,764 Leasehold improvements and others 9,831 14,912 Construction in progress 67,529 46,718 1,068,283 1,110,689 Accumulated depreciation (573,882 ) (588,565 ) Property, plant and equipment, net $ 494,401 $ 522,124 Depreciation expense was $73.3 million and $72.8 million for the years ended December 31, 2021 and 2020, respectively.

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	NOTE 9 - GOODWILL AND OTHER INTANGIBLE ASSETS At March 31, 2020, the impact of COVID-19 and uncertainty with respect to the economic effects of the pandemic had introduced significant volatility in the financial markets and was having a widespread adverse effect on the automotive industry, including reductions in both consumer demand and OEM automotive production. In response to the COVID-19 pandemic, our key customers temporarily closed nearly all their production facilities in Europe and North America (our primary markets) during the quarter ended March 31, 2020. As a result, we concluded that an interim test of our goodwill was required as of March 31, 2020. More specifically, the Company concluded that the following events and circumstances, in the aggregate, indicated that it was more likely than not that the carrying value of our European reporting unit exceeded its fair value: (1) our European reporting unit’s carrying value was effectively set to fair value at December 31, 2019, due to the $102.2 million impairment charges to goodwill and indefinite-lived intangibles, (2) lower forecasted 2020 industry production volumes for Western and Central Europe, including those for our primary European customers, due to OEM shutdowns to mitigate COVID-19 spread and subsequent reduced production levels over the remainder of the year, as compared to our prior production forecasts (including estimates used in our 2019 assessment) and (3) the volatility in financial markets that both increased European interest rates due to rising credit spreads and risk premiums and lowered median European automotive market multiples. Based on the results of our quantitative analysis, we recognized a non-cash goodwill impairment charge equal to the remaining goodwill balance of $182.6 million since the carrying value exceeded the fair value of the European reporting unit by more than the amount of the goodwill balance at March 31, 2020. we recognized a non-cash impairment charge of $11.0 million related to our aftermarket trade name indefinite-lived intangible asset which was primarily attributable to a further decline in forecasted aftermarket revenues and a decline in associated profitability. Total impairment charges of $193.6 million were recognized as a separate charge at March 31, 2020 and included in loss from operations. We utilized both an income and a market approach, weighted 75 percent and 25 percent, respectively, to determine the fair value of the European reporting unit as part of our goodwill impairment assessment. The income approach is based on projected debt-free cash flow, which is discounted to the present value using discount factors that consider the timing and risk of cash flows. The discount rate used is the weighted average of an estimated cost of equity and of debt (“weighted average cost of capital”). The weighted average cost of capital is adjusted as necessary to reflect risk associated with the business of the European reporting unit. Financial projections are based on estimated production volumes, product prices and expenses, including raw material cost, wages, energy and other expenses. Other significant assumptions include terminal value cash flow and growth rates, future capital expenditures and changes in future working capital requirements. The market approach is based on the observed ratios of enterprise value to earnings before interest, taxes, depreciation and amortization (EBITDA) of comparable, publicly traded companies. The market approach fair value is determined by multiplying historical and anticipated financial metrics of the European reporting unit by the EBITDA pricing multiples derived from comparable, publicly traded companies . At March 31, 2020, we determined that the carrying value of the European reporting unit exceeded its fair value by an amount greater than the remaining goodwill balance. The decline in fair value was primarily due to significantly lower market multiples and increased discount rates, as well as further declines in forecasted industry production volumes in Western and Central Europe as a result of the COVID-19 pandemic and consequent economic instability. Forecasted revenues, EBITDA and cash flow for the European reporting unit also declined as compared to the prior year long-range plan due to lower forecasted industry production volumes which adversely impacted fair value under both the income and market approaches. Significant assumptions used under the income approach included a weighted average cost of capital (WACC) of 12.0 percent and a long-term growth rate of 1.5 percent, as compared to 10.0 percent and 2.0 percent, respectively, used in the 2019 assessment. In determining the WACC, management considered the level of risk inherent in the cash flow projections and current market conditions, including the significant increase in credit spreads and systemic market and Company specific risk premiums. The decline in the fair value under the market approach was attributable to the decline in the average EBITDA market multiple (4.9X EBITDA in 2020, 5.7X EBITDA in 2019) and lower forecasted EBITDA, as compared to the 2019 assessment . The use of these unobservable inputs results in classification of the fair value estimate as a Level 3 measurement in the fair value hierarchy. A considerable amount of management judgment and assumptions are required in performing the quantitative impairment test, principally related to determining the fair value of the reporting unit. While the Company believes its judgments and assumptions are reasonable, different assumptions could change the estimated fair value. The Company’s finite-lived intangible assets are amortized on a straight-line basis over their estimated useful lives. Following is a summary of the Company’s finite-lived and indefinite-lived intangible assets and goodwill as of December 31, 2021 and 2020. Year Ended December 31, 2021 Gross Carrying Amount Impairment Accumulated Amortization Currency Translation Net Carrying Amount Remaining Weighted Average Amortization Period (Dollars in thousands) Brand name $ 9,000 $ — $ (8,503 ) $ 258 $ 755 1-2 Technology 15,000 — (14,172 ) 430 1,258 2 Customer relationships 167,000 — (95,540 ) 3,397 74,857 2-7 Total finite 191,000 — (118,215 ) 4,085 76,870 Trade names 14,000 (13,772 ) — (228 ) — Indefinite Total intangibles $ 205,000 $ (13,772 ) $ (118,215 ) $ 3,857 $ 76,870 Year Ended December 31, 2020 Gross Carrying Amount Impairment Accumulated Amortization Currency Translation Net Carrying Amount Remaining Weighted Average Amortization Period (Dollars in thousands) Brand name $ 9,000 $ — $ (6,615 ) $ 399 $ 2,784 2-3 Technology 15,000 — (11,024 ) 666 4,642 1-3 Customer relationships 167,000 — (74,322 ) 10,692 103,370 3-8 Total finite 191,000 — (91,961 ) 11,757 110,796 Trade names 14,000 (13,772 ) — (228 ) — Indefinite Total intangibles $ 205,000 $ (13,772 ) $ (91,961 ) $ 11,529 $ 110,796 Year Ended December 31, 2020 Beginning Balance Ending Balance Gross Accumulated Impairment Net Balance Impairment Currency Translation Gross Accumulated Impairment Net Balance (Dollars in thousands) Goodwill $ 284,337 $ (99,505 ) $ 184,832 $ (182,602 ) $ (2,230 ) $ 282,107 $ (282,107 ) $ — Amortization expense for these intangible assets was $26.3 million and $25.4 million for the years ended December 31, 2021 and 2020, respectively. The anticipated annual amortization expense for these intangible assets is $22.4 million for 2022, $20.4

Debt

Debt	12 Months Ended
	Dec. 31, 2021
Debt Disclosure [Abstract]
Debt	NOTE 10 - DEBT A summary of long-term debt and the related weighted average interest rates is shown below: December 31, 2021 (Dollars in Thousands) Debt Instrument Total Debt Debt Issuance Costs (1) Total Debt, Net Weighted Average Interest Rate Term Loan Facility $ 349,200 $ (4,338 ) $ 344,862 4.1 % 6.00% Senior Notes 245,809 (3,441 ) 242,368 6.0 % European CapEx loans 18,595 — 18,595 2.3 % Finance leases 2,611 — 2,611 2.8 % $ 616,215 $ (7,779 ) 608,436 Less: Current portion (6,081 ) Long-term debt $ 602,355 December 31, 2020 (Dollars in Thousands) Debt Instrument Total Debt Debt Issuance Costs (1) Total Debt, Net Weighted Average Interest Rate Term Loan Facility $ 349,200 $ (7,155 ) $ 342,045 4.1 % 6.00% Senior Notes 266,928 (4,425 ) 262,503 6.0 % European CapEx loans 23,668 — 23,668 2.3 % Finance leases 3,388 — 3,388 3.0 % $ 643,184 $ (11,580 ) 631,604 Less: Current portion (6,112 ) Long-term debt $ 625,492 (1) Unamortized portion Senior Notes On June 15, 2017, Superior issued €250.0 million original principal amount of 6.00% Senior Notes due June 15, 2025 (the “Notes”). Interest on the Notes is payable semiannually, on June 15 and December 15. The Company may redeem the Notes, in whole or in part, on or after June 15, 2021 at a redemption price of 101.5 percent and on or after June 15, 2022 at a redemption price of 100.0 percent, in each case plus accrued and unpaid interest to, but not including, the applicable redemption date. If we experience a change of control or sell certain assets, the Company may be required to offer to purchase the Notes from the holders. The Notes are senior unsecured obligations ranking equally in right of payment with all of its existing and future senior indebtedness and senior in right of payment to any subordinated indebtedness. The Notes are effectively subordinated in right of payment to the existing and future secured indebtedness of the Company, including the Senior Secured Credit Facilities (as defined below), to the extent of the assets securing such indebtedness. Guarantee The Notes are unconditionally guaranteed by all material wholly-owned direct and indirect domestic restricted subsidiaries of the Company (the “Subsidiary Guarantors”), with customary exceptions including, among other things, where providing such guarantees is not permitted by law, regulation or contract or would result in adverse tax consequences. Covenants Subject to certain exceptions, the indenture governing the Notes contains restrictive covenants that, among other things, limit the ability of Superior and the Subsidiary Guarantors to: (i) incur additional indebtedness or issue certain preferred stock; (ii) pay dividends on, or make distributions in respect of, their capital stock; (iii) make certain investments or other restricted payments; (iv) sell certain assets or issue capital stock of restricted subsidiaries; (v) create liens; (vi) merge, consolidate, transfer or dispose of substantially all of their assets; and (vii) engage in certain transactions with affiliates. These covenants are subject to several important limitations and exceptions that are described in the indenture. The indenture provides for customary events of default that include, among other things (subject in certain cases to customary grace and cure periods): (i) nonpayment of principal, premium, if any, and interest, when due; (ii) failure for 60 days to comply with any obligations, covenants or agreements in the indenture after receipt of written notice from the Bank of New York Mellon, London Branch (“the Trustee”) or holders of at least 30 percent in principal amount of the then outstanding Notes of such failure (other than defaults referred to in the foregoing clause (i)); (iii) default under any mortgage, indenture or instrument for money borrowed by the Company or certain of its subsidiaries; (iv) a failure to pay certain judgments; and (v) certain events of bankruptcy and insolvency. If an event of default occurs and is continuing, the Trustee or holders of at least 30 percent in principal amount of the then outstanding Notes may declare the principal, premium, if any, and accrued and unpaid interest on all the Notes to be due and payable. These events of default are subject to several important qualifications, limitations and exceptions that are described in the indenture. At December 31, 2021, the Company was in compliance with all covenants under the indenture governing the Notes. Senior Secured Credit Facilities On March 22, 2017, Superior entered into a senior secured credit agreement (the “Credit Agreement”) with Citibank, N.A, as Administrative Agent, Collateral Agent and Issuing Bank, JP Morgan Chase N.A., Royal Bank of Canada and Deutsche Bank AG New York Branch as Joint Lead Arrangers and Joint Book Runners, and the other lenders party thereto (collectively, the “Lenders”). The Credit Agreement consisted of a $400.0 million senior secured term loan facility (the “Term Loan Facility”), which matures on May 23, 2024, and a $160.0 million revolving credit facility (the “Revolving Credit Facility”) originally maturing on May 23, 2022, together with the Term Loan Facility, the USD Senior Secured Credit Facilities (“USD SSCF”). On May 3, 2021, the Company extended the term of the Revolving Credit Facility under its USD SSCF and reduced the commitment under the facility from $160.0 million to $132.5 million, with $25.0 million of the commitment maturing May 23, 2022 and the remaining $107.5 million maturing October 31, 2023. The extension Borrowings under the Term Loan Facility will bear interest at a rate equal to, at the Company’s option, either (a) LIBOR for the relevant interest period, adjusted for statutory requirements, with a floor of 0.00 percent per annum, plus an applicable rate of 4.00 percent or (b) a base rate, with a floor of 2.00 percent per annum, equal to the highest of (1) the rate of interest in effect as publicly announced by the administrative agent as its prime rate, (2) the federal funds rate plus 0.50 percent and (3) LIBOR for an interest period of one month plus 1.00 percent, in each case, plus an applicable rate of 3.00 Borrowings under the Revolving Credit Facility bear interest at a rate equal to, at the Company’s option, either (a) LIBOR for the relevant interest period, with a floor of 0.00 percent per annum, plus the applicable rate or (b) a base rate, with a floor of 0.00 percent, equal to the highest of (1) the rate of interest in effect as publicly announced by the administrative agent as its prime rate, (2) the federal funds effective rate plus 0.50 percent and (3) LIBOR for an interest period of one month plus 1.00 percent, in each case, plus the applicable rate. The applicable rates for borrowings under the Revolving Credit Facility are based upon the First Lien Net Leverage Ratio effective for the preceding quarter with, LIBOR applicable rates ranging between 3.50 percent and 3.00 percent, currently 3.25 percent, and base rate applicable rates between 2.50 percent and 2.00 percent, currently 2.25 percent. Commitment fees for the unused commitment under the Revolving Credit Facility are also based upon the First Lien Net Leverage Ratio, effective for the preceding quarter, and range between 0.50 percent and 0.25 percent for the commitment maturing May 23, 2022, currently 0.375 percent, and between 0.625 percent and 0.375 percent for the remaining commitment maturing October 31, 2023, currently 0.50 percent. Commitment fees are included in interest expense. As of December 31, 2021, the Company had repaid $50.8 million under the Term Loan Facility resulting in a balance of $349.2 million. In addition, the Company had no outstanding borrowings under the Revolving Credit Facility, had outstanding letters of credit of $4.8 million and had available unused commitments under the Revolving Credit Facility of $127.7 million as of December 31, 2021. Guarantees and Collateral Security Our obligations under the Credit Agreement are unconditionally guaranteed by the Subsidiary Guarantors, with customary exceptions including, among other things, where providing such guarantees is not permitted by law, regulation or contract or would result in adverse tax consequences. The guarantees of such obligations, are secured, subject to permitted liens and other exceptions, by substantially all of our assets and the Subsidiary Guarantors’ assets, including but not limited to: (i) a perfected pledge of all of the capital stock issued by each of the Subsidiary Guarantors’ (subject to certain exceptions) and up to 65 percent of the capital stock issued by each direct wholly-owned foreign restricted subsidiary of the Company or any guarantor (subject to certain exceptions) and (ii) perfected security interests in and mortgages on substantially all tangible and intangible personal property and material fee-owned real property of the Company and the Subsidiary Guarantors (subject to certain exceptions and exclusions). Covenants The Credit Agreement contains a number of restrictive covenants that, among other things, restrict, subject to certain exceptions, our ability to incur additional indebtedness and guarantee indebtedness, create or incur liens, engage in mergers or consolidations, sell, transfer or otherwise dispose of assets, make investments, acquisitions, loans or advances, pay dividends, distributions or other restricted payments, or repurchase our capital stock. The Credit Agreement also restricts our ability to prepay, redeem, or repurchase any subordinated indebtedness, enter into agreements which limit our ability to incur liens on our assets or that restrict the ability of restricted subsidiaries to pay dividends or make other restricted payments to us, and enter into certain transactions with our affiliates. Solely with respect to the Revolving Credit Facility, the Credit Agreement also requires a Total Net Leverage Ratio (calculated as defined in the Credit Agreement) of not more than 4.5 to 1.0 as of each fiscal quarter-end. In addition, the Credit Agreement contains customary default provisions, representations and warranties and other covenants. The Credit Agreement also contains a provision permitting the Lenders to accelerate the repayment of all loans outstanding under the USD SSCF during an event of default. At December 31, 2021, the Company was in compliance with all covenants under the Credit Agreement. European Debt In connection with the acquisition of UNIWHEELS, AG in 2017, the Company assumed $70.7 million of outstanding debt. As of December 31, 2021, $6.8 million of the assumed debt remained outstanding. The debt matures March 31, 2024, and is collateralized by the financed equipment, guaranteed by Superior and bears interest at a rate of 2.2 percent. Covenants under the loan agreement include a default provision for non-payment, as well as a material adverse change default provision pursuant to which the lender could accelerate the loan maturity. As of December 31, 2021, the Company was in compliance with all covenants under the loan agreement. During the second quarter of 2021, the Company amended its European Revolving Credit Facility (“EUR SSCF”), extending the term to May 22, 2023 and increasing the applicable margin and commitment fees, while maintaining the €60.0 million commitment. All other terms of the EUR SSCF remained unchanged. As of December 31, 2021, the Company had no borrowings outstanding, outstanding letters of credit of $0.5 million (€0.4 million) and available unused commitments under this facility of $67.5 million (€59.6 million). The EUR SSCF bears interest at Euribor (with a floor of zero) plus a margin (ranging from 2.05 percent to 3.50 percent based on the net debt leverage ratio of Superior Industries Europe AG and its wholly owned subsidiaries, collectively “Superior Europe AG”), currently 2.05 percent. The annual commitment fee for unused commitments (ranging from 0.625 percent to 1.225 percent based on the net debt leverage ratio of Superior Europe AG) is currently 0.625 percent per annum. In addition, a management fee is assessed equal to 0.07 percent of borrowings outstanding at each month end. The commitment fee is included in interest expense. Superior Europe AG has pledged substantially all of its assets, including land and buildings, receivables, inventory, and other moveable assets (other than collateral associated with equipment loans) as collateral under the EUR SSCF. The EUR SSCF is subject to a number of restrictive covenants that, among other things, restrict, subject to certain exceptions, the ability of Superior Europe AG to incur additional indebtedness and guarantee indebtedness, create or incur liens, engage in mergers or consolidations, sell, transfer or otherwise dispose of assets, make investments, acquisitions, loans or advances, pay dividends or distributions, or repurchase Superior Europe AG’s capital stock, prepay, redeem, or repurchase any subordinated indebtedness, and enter into agreements which limit Superior Europe AG’s ability to incur liens on our assets. In addition, the EUR SSCF includes an annual pay down provision requiring outstanding balances to be repaid but not reborrowed for a period of three business days and a material adverse change default provision pursuant to which the lender could accelerate the loan maturity. At December 31, 2021, Superior Europe AG was in compliance with all covenants under the EUR SSCF. The balance of certain post-acquisition equipment loans was $11.8 million as of December 31, 2021. The loans bear interest at 2.3 percent, mature September 30, 2027 and require quarterly principal and interest payments. The loans are secured with liens on the financed equipment and are subject to covenants that, among other things, include a material adverse change default provision pursuant to which the lender could accelerate the loan maturity, as well as a provision that restricts the ability of Superior Europe AG to reduce its ownership interest in Superior Industries Production Germany GmbH, its wholly-owned subsidiary and the borrower under the loan. The Company drew down € 10.6 million on these equipment loans in the first quarter of 2020 and drew the remaining € 1.4 million in the first quarter of 2021. Quarterly installment payments of $ 0.5 million (€ 0.4 million) under the loan agreements began in June of 2021 . At December 31, 2021, the Company was in compliance with all covenants under the loans. Debt maturities due in the next five years and thereafter are as follows: Year Ended December 31, (Dollars in thousands) Debt Maturities Amount 2022 $ 6,081 2023 5,765 2024 352,282 2025 248,036 2026 2,122 Thereafter 1,929 Total debt liabilities $ 616,215

Redeemable Preferred Stock

Redeemable Preferred Stock	12 Months Ended
	Dec. 31, 2021
Text Block [Abstract]
Redeemable Preferred Stock	NOTE 11 - REDEEMABLE PREFERRED STOCK During 2017, we issued 150,000 shares of Series A (140,202 shares) and Series B (9,798 shares) Perpetual Convertible Preferred Stock, par value $0.01 per share for $150.0 million. On August 30, 2017, the Series B shares were converted into Series A redeemable preferred stock (the “redeemable preferred stock”) after approval by our shareholders. The redeemable preferred stock has an initial stated value of $1,000 per share, par value of $0.01 per share and liquidation preference over common stock. The redeemable preferred stock is convertible into shares of our common stock equal to the number of shares determined by dividing the sum of the stated value (including any dividends paid-in-kind) and any accrued and unpaid dividends by the conversion price of $28.162. The redeemable preferred stock accrues dividends at a rate of 9 percent per annum, payable at our election either in-kind or in cash and is also entitled to participate in dividends on common stock in an amount equal to that which would have been due had the shares been converted into common stock. We may mandate conversion of the redeemable preferred stock if the price of the common stock exceeds $84.49. The holder may redeem the shares upon the occurrence of any of the following events (referred to as a “redemption event”): a change in control, recapitalization, merger, sale of substantially all of the Company’s assets, liquidation or delisting of the Company’s common stock. In addition, the holder has the right, at its option, to unconditionally redeem the shares at any time on or after September 14, 2025 (the “redemption date”, which was originally May 23, 2024, but was corrected to September 14, 2025 in 2018 through modification of the Certificate of Designations governing the terms and conditions of the preferred stock). We may, at our option, redeem in whole at any time all of the shares of redeemable preferred stock outstanding. At redemption by either party, the redemption value will be the greater of two The difference between the redemption value of the redeemable preferred stock and the carrying value (the “premium”) is being accreted over the period from the date of issuance through September 14, 2025 using the effective interest method. The accretion is treated as a deemed dividend, recorded as a charge to retained earnings and deducted in computing earnings per share (analogous to the treatment for stated and participating dividends paid on the redeemable preferred shares). The cumulative premium accretion as of December 31, 2021 and 2020 was $64.4 million and $43.9 million, respectively, resulting in adjusted redeemable preferred stock balances of $199.9 million and $179.4 million, respectively.

European Non-Controlling Redeem

European Non-Controlling Redeemable Equity	12 Months Ended
	Dec. 31, 2021
Noncontrolling Interest [Abstract]
European Non-Controlling Redeemable Equity	NOTE 12 - EUROPEAN NON-CONTROLLING REDEEMABLE EQUITY On May 30, 2017, the Company acquired 92.3 percent of the outstanding shares of UNIWHEELS, AG. Subsequently, the Company commenced a delisting and associated tender offer for the remaining shares. On January 17, 2018, the Company entered into a Domination and Profit and Loss Transfer agreement (“DPLTA”) retroactively effective as of January 1, 2018 pursuant to which we offered to purchase the remaining outstanding shares at €62.18 per share. This price may be subject to change based on appraisal proceedings initiated by the minority shareholders which have not yet been concluded. The Company must also pay an annual dividend of €3.23 as long as the DPLTA is in effect. For any shares tendered prior to the annual dividend payment, we must pay interest at a statutory rate, currently 4.12 percent, in place of the dividend. As a result of purchases pursuant to the tender offer and the DPLTA, the Company has increased its ownership to 99.9 percent as of December 31, 2021. In addition, the carrying value of the non-controlling interests must be adjusted to redemption value since they are currently redeemable. The following table summarizes the European non-controlling redeemable equity activity for the two year period ended December 31, 2021: (Dollars in thousands) Balance at December 31, 2019 $ 6,525 Dividends accrued 205 Dividends paid (46 ) Translation adjustment 2 Purchase of shares (5,020 ) Balance at December 31, 2020 1,666 Dividends accrued 42 Dividends paid (354 ) Translation adjustment (117 ) Purchase of shares (91 ) Balance at December 31, 2021 $ 1,146

Earnings Per Share

Earnings Per Share	12 Months Ended
	Dec. 31, 2021
Earnings Per Share [Abstract]
Earnings Per Share	NOTE 13 - EARNINGS PER SHARE Basic earnings per share is computed by dividing net income (loss), after deducting redeemable preferred stock dividends and accretion and European non-controlling redeemable equity dividends, by the weighted average number of common shares outstanding. For purposes of calculating diluted earnings per share, the weighted average shares outstanding includes the dilutive effect of outstanding stock options and time and performance based restricted stock units under the treasury stock method. The redeemable preferred shares discussed in Note 11, “Redeemable Preferred Stock” have not been included in the calculation of diluted earnings per share because inclusion of such shares on an as converted basis would be anti-dilutive. Year Ended December 31, 2021 2020 (Dollars in thousands, except per share amounts) Basic Earnings Per Share: Net income (loss) $ 3,754 $ (243,561 ) Less: Redeemable preferred stock dividends and accretion (34,050 ) (31,994 ) Less: European non-controlling redeemable equity dividend (42 ) (205 ) Basic numerator $ (30,338 ) $ (275,760 ) Basic loss per share $ (1.17 ) $ (10.81 ) Weighted average shares outstanding – Basic 25,995 25,498 Diluted Earnings Per Share: Net income (loss) $ 3,754 $ (243,561 ) Less: Redeemable preferred stock dividends and accretion (34,050 ) (31,994 ) Less: European non-controlling redeemable equity dividend (42 ) (205 ) Diluted numerator $ (30,338 ) $ (275,760 ) Diluted loss per share $ (1.17 ) $ (10.81 ) Weighted average shares outstanding – Basic 25,995 25,498 Dilutive effect of common share equivalents — — Weighted average shares outstanding – Diluted 25,995 25,498

Income Taxes

Income Taxes	12 Months Ended
	Dec. 31, 2021
Income Tax Disclosure [Abstract]
Income Taxes	NOTE 14 - INCOME TAXES Income/(loss) before income taxes from domestic and international jurisdictions is comprised of the following: Year Ended December 31, 2021 2020 (Dollars in thousands) Income (loss) before income taxes: Domestic $ (44,129 ) $ (74,151 ) Foreign 55,320 (154,529 ) $ 11,191 $ (228,680 ) The benefit/(provision) for income taxes is comprised of the following: Year Ended December 31, 2021 2020 (Dollars in thousands) Current taxes Federal $ (67 ) $ 1,970 State (99 ) (29 ) Foreign (9,229 ) (9,333 ) Total current taxes (9,395 ) (7,392 ) Deferred taxes Federal 711 (4,756 ) State — (3,622 ) Foreign 1,247 889 Total deferred taxes 1,958 (7,489 ) Income tax provision $ (7,437 ) $ (14,881 ) The following is a reconciliation of the U.S. federal tax rate to our effective income tax rate: Year Ended December 31, 2021 2020 Statutory rate 21.0 % 21.0 % State tax provisions, net of federal income tax benefit (14.2 ) 0.6 Tax credits (13.2 ) (0.1 ) Foreign income taxes at rates other than the statutory rate (97.1 ) 10.9 Valuation allowance 203.6 (10.4 ) Changes in tax liabilities, net (89.7 ) (0.2 ) Share based compensation 10.9 (0.2 ) Unremitted non-U.S. Earnings 3.6 (1.7 ) US tax on non-US income 16.3 0.8 Non-deductible charges 22.3 (0.9 ) Impairment of goodwill — (25.3 ) Other 3.0 (1.0 ) Effective income tax rate 66.5 % (6.5 )% Tax effects of temporary differences that gave rise to significant portions of the deferred tax assets and deferred tax liabilities are as follows: Year Ended December 31, 2021 2020 (Dollars in thousands) Deferred income tax assets: Accrued liabilities $ 4,964 $ 3,688 Hedging and foreign currency gains (losses) 9,231 3,323 Deferred compensation 8,162 8,473 Inventory reserves 3,777 5,114 Net loss carryforwards and credits 40,747 48,924 Interest carryforwards 29,366 14,972 Competent authority deferred tax assets and other foreign timing differences 4,739 4,465 Other 1,143 1,714 Total before valuation allowance 102,129 90,673 Valuation allowance (69,388 ) (46,490 ) Net deferred income tax assets 32,741 44,183 Deferred income tax liabilities: Intangibles, property, plant and equipment and other (4,408 ) (17,959 ) Unremitted earnings (4,531 ) (4,468 ) Deferred income tax liabilities (8,939 ) (22,427 ) Net deferred income tax assets $ 23,802 $ 21,756 The classification of our net deferred tax asset is shown below: Year Ended December 31, 2021 2020 (Dollars in thousands) Long-term deferred income tax assets $ 27,715 $ 30,860 Long-term deferred income tax liabilities (3,913 ) (9,104 ) Net deferred tax asset $ 23,802 $ 21,756 The increase in the valuation allowance of $22.9 million to reduce the U.S. federal, state and certain foreign deferred tax assets is due to the assessment that the Company is not more likely than not to realize these deferred tax assets. As of December 31, 20 2 1 , we have cumulative tax effected U.S. federal and Germany NOL carryforwards of $ million that carryforward indefinitely and U.S. state NOL carryforwards of $ million that expire in the years 202 2 to 20 4 2 . Also, we have $ million of tax credit carryforwards, primarily in Poland, which expire in the years 202 2 to 202 8 . The transition tax substantially eliminated the basis difference on foreign subsidiaries that existed previously for purposes of Accounting Standards Codification topic 740 (“ASC 740”). However, there are limited other taxes that could continue to apply such as foreign withholding and certain state taxes. Provisions are made for income tax liabilities on the undistributed earnings of non-U.S. subsidiaries. A reconciliation of the beginning and ending amounts of uncertain tax positions is as follows: Year Ended December 31, 2021 2020 (Dollars in thousands) Beginning balance $ 31,858 $ 30,368 Increases (decreases) due to foreign currency translations $ (1,192 ) 2,265 Increases (decreases) as a result of positions taken during: Prior periods (13,633 ) (1,147 ) Current period 48 372 Settlements with taxing authorities (719 ) — Expiration of applicable statutes of limitation Ending balance $ 16,362 $ 31,858 Our policy regarding interest and penalties related to uncertain tax positions is to record interest and penalties as an element of income tax expense. At the end of 2021 and 2020, the Company had liabilities of $5.8 million and $4.7 million of potential interest and penalties associated with uncertain tax positions. Included in the unrecognized tax benefits is $3.1 million that, if recognized, would favorably affect our annual effective tax rate. Within the next twelve-month period we expect a decrease in unrecognized tax benefits as uncertain tax positions begin to expire. Income tax returns are filed in multiple jurisdictions and are subject to examination by tax authorities in various jurisdictions where the Company operates. The Company has open tax years from 2015 to 2020 with various significant tax jurisdictions, including ongoing tax audits in the U.S. for 2015 to 2018. During the examination of our U.S. federal income tax return for tax years 2015-2018, the Internal Revenue Service (IRS) asserted that income earned by a foreign subsidiary from its Mexican branch operations should be categorized as foreign base company sales income (FBCSI) under Section 954(d) of the Internal Revenue Code and issued a Notice of Proposed Adjustment (NOPA). We believe that the proposed adjustment is without merit, and we have contested the matter, which is currently under review in the IRS’s administrative appeals process. We believe it is likely that we will be successful in ultimately defending our position. As such, we have not recorded any impact of the IRS’s proposed adjustment in our consolidated financial statements, as of December 31, 2021. In the event we are not successful in defending our position, the potential additional income tax expense and cash flow impact related to this issue is not expected to be significant as a result of available net operating losses and income tax credits currently offset by valuation allowances. We intend to continue to contest the conclusions reached in the NOPA through the IRS’s administrative appeals process, and, if necessary, through litigation.

Leases

Leases	12 Months Ended
	Dec. 31, 2021
Leases [Abstract]
Leases	NOTE 15 - The Company determines whether an arrangement is or contains a lease at the inception of the arrangement. Operating leases are accounted for in other non-current assets, accrued expenses and other non-current liabilities in our consolidated balance sheets. Finance leases are included in property, plant and equipment, net, short-term debt and long-term debt (less current portion) in our consolidated balance sheets. Right-of-use (ROU) assets represent our right to use an underlying asset for the lease term and lease liabilities represent our obligation to make lease payments arising from the lease. Operating lease ROU assets and liabilities are recognized at the commencement date based on the present value of the lease payments over the lease term. Since we generally do not have access to the interest rate implicit in the lease, the Company uses our incremental borrowing rate (for fully collateralized debt) at the inception of the lease in determining the present value of the lease payments. The implicit rate is, however, used where readily available. Lease expense under operating leases is recognized on a straight-line basis over the term of the lease. Certain of our leases contain both lease and non-lease components, which are accounted for separately. The Company has operating and finance leases for office facilities, a data center and certain equipment. The remaining terms of our leases range from over one year to eight years. Certain leases include options to extend the lease term for up to ten years, as well as options to terminate, both of which have been excluded from the term of the lease since exercise of these options is not reasonably certain. Lease expense, cash flow, operating and finance lease assets and liabilities, average lease term and average discount rate are as follows: Year Ended December 31, 2021 2020 (Dollars in thousands) Lease Expense Finance lease expense: Amortization of right-of-use assets $ 1,325 $ 1,219 Interest on lease liabilities 82 85 Operating lease expense 3,070 3,388 Total lease expense $ 4,477 $ 4,692 Cash Flow Components Cash paid for amounts included in the measurement of lease liabilities: Operating cash outflows from finance leases $ 82 $ 85 Operating cash outflows from operating leases 3,460 3,621 Financing cash outflows from finance leases 1,321 960 Right-of-use assets obtained in exchange for finance lease liabilities, net of terminations and disposals 922 879 Right-of-use assets obtained in exchange for operating lease liabilities, net of terminations and disposals 416 657 Year Ended December 31, 2021 2020 (Dollars in thousands, except lease term and discount rate) Balance Sheet Information Operating leases: Other non-current assets $ 10,772 $ 13,598 Accrued liabilities $ (2,371 ) $ (2,868 ) Other non-current liabilities (8,860 ) (11,513 ) Total operating lease liabilities $ (11,231 ) $ (14,381 ) Finance leases: Property, plant and equipment gross $ 6,603 $ 5,735 Accumulated depreciation (4,644 ) (3,319 ) Property, plant and equipment, net $ 1,959 $ 2,416 Current portion of long-term debt $ (982 ) $ (1,113 ) Long-term debt (less current portion) (1,629 ) (2,275 ) Total finance lease liabilities $ (2,611 ) $ (3,388 ) Lease Term and Discount Rates Weighted-average remaining lease term - finance leases (years) 3.4 3.9 Weighted-average remaining lease term - operating leases (years) 5.0 6.1 Weighted-average discount rate - finance leases 2.8 % 3.0 % Weighted-average discount rate - operating leases 3.6 % 3.8 % Summarized future minimum payments under our leases are as follows: Year Ended December 31, Amount (Dollars in thousands) Lease Maturities Finance Leases Operating Leases 2022 $ 982 $ 2,789 2023 666 2,445 2024 248 2,193 2025 148 2,100 2026 125 1,975 Thereafter 560 741 Total 2,729 12,243 Less: Imputed interest (118 ) (1,012 ) Total lease liabilities, net of interest $ 2,611 $ 11,231

Retirement Plans

Retirement Plans	12 Months Ended
	Dec. 31, 2021
Compensation And Retirement Disclosure [Abstract]
Retirement Plans	NOTE 16 - RETIREMENT PLANS We have an unfunded salary continuation plan covering certain directors, officers, and other key members of management. Subject to certain vesting requirements, the plan provides for a benefit based on final average compensation, which becomes payable on the employee’s death or upon attaining age 65, if retired. The plan was closed to new participants effective February 3, 2011. The following table summarizes the changes in plan assets and plan benefit obligations. Year Ended December 31, 2021 2020 (Dollars in thousands) Change in benefit obligation Beginning benefit obligation $ 32,640 $ 31,001 Interest cost 823 1,005 Actuarial (gain) loss (928 ) 2,164 Benefit payments (1,415 ) (1,530 ) Ending benefit obligation $ 31,120 $ 32,640 The actuarial gain in 2021 and loss in 2020 were primarily due to the year-over-year change in the discount rate. Year Ended December 31, 2021 2020 (Dollars in thousands) Change in plan assets Fair value of plan assets at beginning of year $ — $ — Employer contribution 1,415 1,475 Benefit payments (1,415 ) (1,475 ) Fair value of plan assets at end of year $ — $ — Funded status $ (31,120 ) $ (32,640 ) Amounts recognized in the consolidated balance sheets consist of: Accrued expenses $ (1,432 ) $ (1,447 ) Other non-current liabilities (29,688 ) (31,193 ) Net amount recognized $ (31,120 ) $ (32,640 ) Amounts recognized in accumulated other comprehensive loss consist of: Net actuarial loss $ 9,446 $ 10,760 Prior service cost (1 ) (1 ) Net amount recognized, before tax effect $ 9,445 $ 10,759 Weighted average assumptions used to determine benefit obligations: Discount rate 2.9 % 2.6 % Rate of compensation increase 3.0 % 3.0 % Components of net periodic pension cost are described in the following table: Year Ended December 31, 2021 2020 (Dollars in thousands) Components of net periodic pension cost: Interest cost $ 823 $ 1,005 Amortization of actuarial loss 386 288 Net periodic pension cost $ 1,209 $ 1,293 Weighted average assumptions used to determine net periodic pension cost: Discount rate 2.6 % 3.3 % Rate of compensation increase 3.0 % 3.0 % Benefit payments during the next ten years, which reflect applicable future service, are as follows: Year Ended December 31, Amount (Dollars in thousands) 2022 $ 1,453 2023 1,458 2024 1,506 2025 1,715 2026 1,779 Years 2027 to 2031 8,911 The following is an estimate of the components of net periodic pension cost in 2022: Estimated Year Ended December 31, 2022 (Dollars in thousands) Interest cost $ 872 Amortization of actuarial loss 332 Estimated 2021 net periodic pension cost $ 1,204 Other Retirement Plans We also contribute to employee retirement savings plans in the U.S. and Mexico that cover substantially all of our employees in those countries. The employer contribution totaled $1.4 million and $1.3 million for the years ended December 31, 2021 and 2020, respectively.

Accrued Expenses

Accrued Expenses	12 Months Ended
	Dec. 31, 2021
Text Block [Abstract]
Accrued Expenses	NOTE 17 - ACCRUED EXPENSES Year Ended December 31, 2021 2020 (Dollars in thousands) Payroll and related benefits $ 31,930 $ 26,930 Taxes, other than income taxes 13,973 14,502 Deferred tooling revenue 6,887 8,249 Current portion of derivative liability 5,870 8,350 Short-term operating lease liability 2,371 2,868 Current portion of executive retirement liabilities 1,432 1,447 Dividends and interest 1,417 1,453 Professional fees 687 1,102 Other 6,958 6,178 Accrued liabilities $ 71,525 $ 71,079

Stock-Based Compensation

Stock-Based Compensation	12 Months Ended
	Dec. 31, 2021
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]
Stock-Based Compensation	NOTE 18 - STOCK-BASED COMPENSATION Equity Incentive Plan Our 2018 Equity Incentive Plan (the “Plan”) was approved by stockholders in May 2018, authorizing up to 4.35 million shares of common stock, along with non-qualified stock options, stock appreciation rights, restricted stock units and performance restricted stock units to our officers, key employees, non-employee directors and consultants. In May 2021, the stockholders approved an amendment to the Plan that, among other things, increased the authorized shares by 2 Under the terms of the Plan, each year eligible participants are granted time value restricted stock units (“RSUs”), vesting ratably over a three-year three-year RSU, PSU and option activity for the year ended December 31, 2021 is summarized in the following table: Equity Incentive Awards Restricted Stock Units Weighted Average Grant Date Fair Value Performance Restricted Stock Units Weighted Average Grant Date Fair Value Options Weighted Average Exercise Price Balance at December 31, 2020 1,213,667 $ 3.59 2,176,290 $ 4.88 24,000 $ 20.39 Granted 411,291 5.94 653,438 8.41 — — Settled (626,004 ) 3.30 (193,778 ) 5.45 — — Forfeited or expired (32,525 ) 8.13 (151,369 ) 12.61 (15,000 ) 22.57 Balance at December 31, 2021 966,429 $ 4.62 2,484,581 $ 6.67 9,000 $ 16.76 Awards estimated to vest in the future 939,298 $ 4.67 1,997,713 $ 6.86 9,000 $ 16.76 Stock-based compensation expense was $9.5 million and $2.4 million for the years ended December 31, 2021 and 2020, respectively. The higher expense for the year ended December 31, 2021 was primarily attributable to the modification of the 2019 and 2020 PSU awards, substituting budgeted amounts for actual performance for the second quarter of 2020 (one of twelve quarters in the respective performance periods), to offset the impact of the COVID-19 pandemic. This increased stock-based compensation for the year ended December 31, 2021 by $4.7 million. In addition, 2020 stock-based compensation was lower due to the reversal of $1.2 million of previously accrued expense as a result of lower expected performance achievement, in light of the COVID-19 pandemic. Unrecognized stock-based compensation expense related to non-vested awards of $ 8.9 million is expected to be recognized over a weighted average period of approximately 1.7 years.

Commitments and Contingencies

Commitments and Contingencies	12 Months Ended
	Dec. 31, 2021
Commitments And Contingencies Disclosure [Abstract]
Commitments and Contingencies	NOTE 19 - COMMITMENTS AND CONTINGENCIES Purchase Commitments When market conditions warrant, we may enter into purchase commitments to secure the supply of certain commodities used in the manufacture of our products, such as aluminum, natural gas and other raw materials. Prices under our aluminum contracts are based on a market index, the London Mercantile Exchange (LME), and regional premiums for processing, transportation and alloy components which are generally adjusted quarterly for purchases in the ensuing quarter. Changes in aluminum prices are generally passed through to our OEM customers and adjusted on a quarterly basis. Certain of our purchase agreements include volume commitments, however any excess commitments are generally negotiated with suppliers and those which have occurred in the past have been carried over to future periods. Contingencies We are party to various legal and environmental proceedings incidental to our business. Certain claims, suits and complaints arising in the ordinary course of business have been filed or are pending against us. Based on facts now known, we believe all such matters are adequately provided for, covered by insurance, are without merit and/or involve such amounts that would not materially adversely affect our consolidated results of operations, cash flows or financial position. Casualty Loss On July 14, 2021, the city of Werdohl, Germany, and surrounding area experienced torrential rains which resulted in extensive flooding. The flooding caused damage to our Werdohl manufacturing facility and production was temporarily halted on July 14, 2021. On July 16, 2021, operations at the facility resumed with the exception of the paint line and certain machining operations, which were brought on-line later in the third quarter. During the year ended December 31, 2021, the Company recognized a net casualty loss of $1.5 million which was included in other expense, net. There was only nominal disruption to our ability to fulfill orders and deliver product to our customers due to the expeditious resumption of operations at the facility.

Receivables Factoring

Receivables Factoring	12 Months Ended
	Dec. 31, 2021
Receivables [Abstract]
Receivables Factoring	NOTE 20 - RECEIVABLES FACTORING The Company sells certain customer trade receivables on a non-recourse basis under factoring arrangements with designated financial institutions. These transactions are accounted for as sales and cash proceeds are included in cash provided by operating activities. Factoring arrangements incorporate customary representations and warranties, including representations as to validity of amounts due, completeness of performance obligations and absence of commercial disputes. During the years ended December 31, 2021 and 2020, the Company sold trade receivables totaling $775.6 million and $522.5 million, respectively, and incurred factoring fees of $2.1 million

Restructuring

Restructuring	12 Months Ended
	Dec. 31, 2021
Restructuring And Related Activities [Abstract]
Restructuring	NOTE 21- RESTRUCTURING During the fourth quarter of 2021, the Company announced a reduction in its workforce at Werdohl, Germany. As a result, the Company recognized a restructuring charge of $4.5 million in cost of sales, principally comprised of termination and related benefits. There were no payments made in 2021 and, accordingly, the restructuring accrual at December 31, 2021 was $4.5 million. During the quarter ended June 30, 2020, the Company discontinued the manufacture and sale of high-performance aftermarket wheels for the automotive racing market segment. The Company incurred a total non-cash charge of $3.4 million, including $2.8 million recorded in cost of sales, comprised of $1.3 million relating to write-downs of certain aftermarket inventory to salvage value, $1.0 million of employee severance costs, $0.5 million in contract terminations and other costs, as well as a $0.6 million non-cash charge recorded in selling, general and administrative expenses related to non-production employee severance costs. During the six-month period ended December 31, 2020, we recognized an additional $0.7 million of severance costs, including charges to cost of sales of $0.4 million and selling, general and administrative expenses of $0.3 million. As of December 31, 2021, the restructuring benefits have been fully paid. During the third quarter of 2019, the Company initiated a plan to significantly reduce production and manufacturing operations at its Fayetteville, Arkansas location, recognizing restructuring expenses of $14.8 million in cost of sales. On July 15, 2021, the Company consummated the sale of the Fayetteville facility for an adjusted net sale price of $ 7.1 million, resulting in a gain of $ 4.4 million which has been credited against selling, general and administrative expenses. During the years ended December 31, 2021 and December 31, 2020, we recognized additional charges to cost of sales of $ 2.2 million and $ 3.3 million, respectively, principally related to relocation costs for redeployment of machinery and equipment and environmental remediation and repairs required under the sale agreement. As of December 31, 2021, $ 0.1 million of the restructuring severance accrual remains.

Valuation and Qualifying Accoun

Valuation and Qualifying Accounts	12 Months Ended
	Dec. 31, 2021
Valuation And Qualifying Accounts [Abstract]
Valuation and Qualifying Accounts	VALUATION AND QUALIFYING ACCOUNTS FOR THE YEARS ENDED DECEMBER 31, 2021 and 2020 (Dollars in thousands) Additions Balance at Beginning of Year Charge to Costs and Expenses Other Deductions From Reserves Balance at End of Year 2021 Allowance for doubtful accounts receivable $ 863 $ 484 $ — $ (521 ) $ 826 Valuation allowances for deferred tax assets $ 46,490 $ 23,467 $ (569 ) $ 69,388 2020 Allowance for doubtful accounts receivable $ 2,867 $ 253 $ — $ (2,257 ) $ 863 Valuation allowances for deferred tax assets $ 22,879 $ 22,146 $ 1,465 $ — $ 46,490

Summary of Significant Accoun_2

Summary of Significant Accounting Policies (Policies)	12 Months Ended
	Dec. 31, 2021
Accounting Policies [Abstract]
Nature of Operations	Nature of Operations Superior Industries International, Inc.’s (referred to herein as the “Company,” “Superior,” or “we,” “us” and “our”) principal business is the design and manufacture of aluminum wheels for sale to original equipment manufacturers (“OEMs”) in North America and Europe and to the aftermarket in Europe. We employ approximately 7,800 full-time employees, operating in eight manufacturing facilities in North America and Europe. We are one of the largest aluminum wheel suppliers to global OEMs and we believe we are the #1 European aluminum wheel aftermarket manufacturer and supplier. Our OEM aluminum wheels accounted for approximately 91 percent of our sales in 2021 and are primarily sold for factory installation on vehicle models manufactured by BMW (including Mini), Daimler (Mercedes-Benz, AMG, Smart), Ford, GM, Honda, Jaguar-Land Rover, Lucid Motors, Mazda, Nissan, PSA, Renault, customer base consisting of North American, European and Asian OEMs.
Presentation of Consolidated Financial Statements	Presentation of Consolidated Financial Statements The consolidated financial statements include the accounts of the Company and its wholly owned subsidiaries. All intercompany transactions are eliminated in consolidation. Accounting estimates are an integral part of the consolidated financial statements. These estimates require the use of judgments and assumptions that affect the reported amounts of assets and liabilities, the disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses in the periods presented. We believe that the accounting estimates employed are appropriate and the resulting balances are reasonable; however, due to the inherent uncertainties in developing estimates, actual results could differ from the original estimates, requiring adjustments to these balances in future periods. Certain prior year amounts have been reclassified to conform with the current year presentation.
Cash and Cash Equivalents	Cash and Cash Equivalents Cash and cash equivalents generally consist of cash, certificates of deposit, fixed deposits and money market funds with original maturities of three months or less.
Derivative Financial Instruments and Hedging Activities	Derivative Financial Instruments and Hedging Activities Our derivatives are over-the counter customized derivative instruments and are not exchange traded. We account for our derivative instruments as either assets or liabilities and adjust them to fair value each period. For derivative instruments that hedge the exposure to variability in expected future cash flows that are designated as cash flow hedges, the gain or loss on the derivative instrument is recorded in accumulated other comprehensive income or loss in shareholders’ equity or deficit until the hedged item is recognized in earnings, at which point accumulated gains or losses are recognized in earnings and classified with the underlying hedged transaction. Derivatives that do not qualify or have not been designated as hedges are adjusted to fair value through earnings in the financial statement line item to which the derivative relates (refer to Note 4, “Derivative Financial Instruments” for additional information pertaining to our derivative instruments). We enter into contracts to purchase certain commodities used in the manufacture of our products, such as aluminum, natural gas and electricity. These contracts are considered to be derivative instruments under U.S. GAAP; however, these purchase contracts are not accounted for as derivatives because they qualify for the normal purchase normal sale exemption.
Accounts Receivable	Accounts Receivable Accounts receivable primarily consists of amounts that are due and payable from our customers for the sale of aluminum wheels. We evaluate the collectability of receivables each reporting period and record an allowance for doubtful accounts representing our estimate of probable losses. Additions to the allowance are charged to bad debt expense reported in selling, general and administrative expenses.
Inventory	Inventory Inventories, which are categorized as raw materials, work-in-process or finished goods, are stated at the lower of cost or net realizable value. The cost of inventories is measured using the FIFO (first-in, first-out) method or the average cost method. Inventories are reviewed to determine if inventory quantities are in excess of forecasted usage or if they have become obsolete. Aluminum is the primary material component in our inventories. In 2021 and 2020, the Company had two and three
Property, Plant and Equipment	Property, Plant and Equipment Property, plant and equipment are carried at cost, less accumulated depreciation. The cost of additions, improvements and interest during construction, if any, are capitalized. Our maintenance and repair costs are charged to expense when incurred. Depreciation is calculated generally on the straight-line method based on the estimated useful lives of the assets. Classification Expected Useful Life Buildings 15 to 50 years Machinery and equipment 3 to 20 years Leasehold improvements Lease term When property, plant and equipment is replaced, retired or otherwise disposed, the cost and related accumulated depreciation are removed and any resulting gain or loss on the disposition of an operating asset is included in income or loss from operations and is classified as a part of selling, general and administrative expenses. Any gain or loss on the disposition of a non-operating asset, as well as any casualty gain or loss, is included in other income or expense.
Impairment of Long-Lived Assets	Impairment of Long-Lived Assets The carrying amount of long-lived assets to be held and used in the business is evaluated for impairment whenever facts and circumstances suggest that the carrying value of the assets may not be recoverable An impairment loss occurs when the carrying value of an asset group (including the carrying value of liabilities associated with the long-lived assets within the asset group) exceeds the undiscounted cash flows expected to be realized from the use and eventual disposition of the respective long-lived assets. An the lowest level for which identifiable cash flows are largely independent of the cash flows of other asset groups Fair value is determined primarily by discounting the estimated expected cash flows. If the carrying amount of an asset group is impaired, a loss is recognized based on the amount by which the carrying value exceeds fair value. The Company’s asset groups consist of the North American and European reportable segments.
Goodwill	Goodwill Goodwill is not amortized but is tested for impairment on at least an annual basis. Impairment testing is required more often than annually if an event or circumstance indicates that an impairment is more likely than not to have occurred. If the net book value of a reporting unit exceeds its fair value, an impairment loss is measured and recognized. We conduct our annual impairment testing as of December 31. Impairment charges, if any, related to goodwill are recorded as a separate charge included in income or loss from operations. In the first quarter of 2020 and fourth quarter of 2019, we recognized goodwill impairment charges of $182.6 million and $99.5 million, respectively, relating to our European reporting unit
Intangible Assets	Intangible Assets Intangible assets include both finite and indefinite-lived intangible assets. Finite-lived intangible assets consist of brand names, technology and customer relationships. Finite-lived intangible assets are amortized on a straight-line basis over their estimated useful lives (since the pattern in which the asset will be consumed cannot be reliably determined). Indefinite-lived intangible assets, excluding goodwill, consist of trade names associated with our aftermarket business. Impairment charges, if any, related to intangible assets are recorded as a separate charge included in income or loss from operations. In the first quarter of 2020 and fourth quarter of 2019, we recognized indefinite-lived intangible asset impairment charges of $11.0 million and $2.7 million, respectively, relating to trade names used in our European aftermarket busines
Foreign Currency Transactions and Translation	Foreign Currency Transactions and Translation The assets and liabilities of foreign subsidiaries that use local currency as their functional currency are translated to U.S. dollars based on the current exchange rate prevailing at each balance sheet date and any resulting translation adjustments are included in accumulated other comprehensive income or loss. The assets and liabilities of foreign subsidiaries whose local currency is not their functional currency are remeasured from their local currency to their functional currency and then translated to U.S. dollars. Revenues and expenses are translated into U.S. dollars using the average exchange rates prevailing for each period presented. Gains and losses arising from foreign currency transactions and the effects of remeasurement discussed in the preceding paragraph are recorded in other income or expense. We recognized foreign currency transaction gains (losses) of $0.3 million and $(2.4) million in 2021 and 2020, respectively.
Revenue Recognition	Revenue Recognition Revenue is recognized when performance obligations under our contracts are satisfied. Generally, this occurs upon shipment when control of products transfers to our customers. At this point, revenue is recognized in an amount reflecting the consideration we expect to be entitled to under the terms of our contract. The Company maintains long term business relationships with our OEM customers and aftermarket distributors; however, there are no definitive long-term volume commitments under these arrangements. Volume commitments are limited to near-term customer requirements authorized under purchase orders or production releases generally with delivery periods of approximately one month. Sales do not involve any significant financing component since customer payment is generally due 40-60 days after shipment. Contract assets and liabilities consist of customer receivables and deferred revenues related to tooling. At contract inception, the Company assesses goods and services promised in its contracts with customers and identifies a performance obligation for each promise to deliver a good or service (or bundle of goods or services) that is distinct. Principal performance obligations under our customer contracts consist of the manufacture and delivery of aluminum wheels, including production wheels, service wheels and replacement wheels. As a part of the manufacture of the wheels, we develop tooling necessary to produce the wheels. Accordingly, tooling costs, which are explicitly recoverable from our customers, are capitalized as preproduction costs and amortized to cost of sales over the average life of the vehicle wheel program. Similarly, customer reimbursement for tooling costs is deferred and amortized to net sales over the average life of the vehicle wheel program. In the normal course of business, the Company’s warranties are limited to product specifications and the Company does not accept product returns unless the item is defective as manufactured. Accordingly, warranty costs are treated as a cost of fulfillment subject to accrual, rather than a performance obligation. The Company establishes provisions for both estimated returns and warranty when revenue is recognized. In addition, the Company does not typically provide customers with the right to a refund but provides for product replacement. Prices allocated to production, service and replacement wheels are based on prices established in our customer purchase orders which represent the standalone selling price. Prices for service and replacement wheels are commensurate with production wheels with adjustment for any special packaging. In addition, prices are subject to adjustment for changes in commodity prices for aluminum, as well as production efficiencies and wheel weight variations from specifications used in pricing. These price adjustments are treated as variable consideration. Customer tooling reimbursement is generally based on quoted prices or cost not to exceed quoted prices. We estimate variable consideration by using the “most likely” amount estimation approach. For commodity prices, initial estimates are based on the commodity index at contract inception. Changes in commodity prices are monitored and revenue is adjusted as changes in the commodity index occur. Prices incorporate the wheel weight price component based on product specifications. Weights are monitored, and prices are adjusted as variations arise. Price adjustments due to production efficiencies are generally recognized as and when negotiated with customers. Customer contract prices are generally adjusted quarterly to incorporate price adjustments. Under the Company’s policies, shipping costs are treated as a cost of fulfillment. In addition, the Company does not disclose remaining performance obligations under its contracts since contract terms are substantially less than a year (generally less than one month). Our revenue recognition practices and related transactions and balances are further described in Note 2, “Revenue.”
Stock-Based Compensation	Stock-Based Compensation We account for stock-based compensation using the estimated fair value recognition method. We recognize these compensation costs net of the applicable forfeiture rate on a straight-line basis for only those shares expected to vest over the requisite service period of the award, which is generally the vesting term of three years. We estimate the forfeiture rate based on our historical experience. Refer to Note 18, “Stock-Based Compensation” for additional information concerning our stock-based compensation awards.
Income Taxes	Income Taxes We account for income taxes using the asset and liability method. The asset and liability method requires the recognition of deferred tax assets and liabilities for expected future tax consequences of temporary differences that currently exist between the tax basis and financial reporting basis of our assets and liabilities. We calculate current and deferred tax provisions based on estimates and assumptions that could differ from actual results reflected on the income tax returns filed during the following years. Adjustments based on filed returns are recorded when identified in the subsequent years. The effect on deferred taxes of a change in tax rates is recognized in income in the period that the tax rate change is enacted. The ability to realize deferred tax assets depends on the ability to generate sufficient taxable income in the future. We account for uncertain tax positions utilizing a two-step approach to evaluate tax positions. Step one, recognition, requires evaluation of the tax position to determine if based solely on technical merits it is more likely than not to be sustained upon examination. Step two, measurement, is addressed only if a position is more likely than not to be sustained. In step two, the tax benefit is measured as the largest amount of benefit, determined on a cumulative probability basis, which is more likely than not to be realized upon ultimate settlement with tax authorities. If a position does not meet the more likely than not threshold for recognition in step one, no benefit is recorded until the first subsequent period in which the more likely than not standard is met, the issue is resolved with the taxing authority, or the statute of limitations expires. Positions previously recognized are derecognized when we subsequently determine the position no longer is more likely than not to be sustained. Evaluation of tax positions, their technical merits, and measurements using cumulative probability are highly subjective management estimates. Actual results could differ materially from these estimates. In 2021 and 2020, we have provided deferred income taxes for the estimated U.S. federal and state income tax, foreign income tax and applicable withholding taxes on unremitted earnings of subsidiaries.
Cash Paid for Interest and Taxes and Non-Cash Investing Activities	Cash Paid for Interest and Taxes and Non-Cash Investing Activities Cash paid for interest was $36.7 million and $39.6 million, respectively, for the years ended December 31, 2021 and 2020. Cash paid for income taxes was $10.5 million and $7.3 million for the years ended December 31, 2021 and 2020, respectively. As of December 31, 2021 and 2020, we had purchased but not yet paid for equipment of $11.2 million and $0.9 million, respectively, which are included in accounts payable and accrued expenses in our consolidated balance sheets.
Accounting Standards Issued but Not Yet Adopted	Accounting Standards Issued But Not Yet Adopted Accounting Standards Update (ASU) 2016-13, “Financial Instruments – Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments.” In June 2016, the Financial Accounting Standards Board (“FASB”) issued ASU 2016-13 which requires entities to use a new impairment model based on current expected credit losses (“CECL”) rather than incurred losses. Under CECL, estimated credit losses would incorporate relevant information about past events, current conditions and reasonable and supportable forecasts and any expected credit losses would be recognized at the time of sale. As a smaller reporting company (as defined under SEC regulations), the Company is not required to adopt the standard until fiscal years beginning after December 31, 2022. We are evaluating the impact this standard will have on our financial statements and disclosures. ASU 2021-10, “Government Assistance (Topic 832): Disclosures by Business Entities about Government Assistance.” In November 2021, the FASB issued ASU 2021-10 which requires entities to disclose information about transactions with a government that are accounted for by applying a grant or contribution accounting model by analogy. Disclosures under ASU 2021-10 include: information about the nature of the transactions and the related accounting policy used to account for the transactions, the financial statement line items affected by the transactions, and the amounts applicable to each financial statement line item and significant terms and conditions of the transactions, including commitments and contingencies. ASU 2021-10 is effective for annual periods beginning after December 15, 2021 and early application is permitted. ASU 2021-10 may be applied either prospectively to all transactions within its scope that are reflected in financial statements at the date of initial application and new transactions entered into thereafter or retrospectively to those transactions. We are evaluating the impact this ASU will have on our financial statements and disclosures.
Fair Value Measurements	The Company applies fair value accounting for all financial assets and liabilities and non-financial assets and liabilities that are required to be recognized or disclosed at fair value in the financial statements on a recurring basis, while other assets and liabilities are measured at fair value on a nonrecurring basis, such as an asset impairment. Fair value is estimated by applying the following hierarchy, which prioritizes the inputs used to measure fair value into three levels and bases the categorization within the hierarchy upon the lowest level of input that is available and significant to the fair value measurement: Level 1 - Quoted prices in active markets for identical assets or liabilities. Level 2 - Observable inputs other than quoted prices in active markets for identical assets and liabilities, quoted prices for identical or similar assets or liabilities in inactive markets, or other inputs that are observable or can be corroborated by observable market data for substantially the full term of the assets or liabilities. Level 3 - Inputs that are generally unobservable and typically reflect management’s estimate of assumptions that market participants would use in pricing the asset or liability. The carrying amounts for cash and cash equivalents, accounts receivable, accounts payable and accrued expenses approximate their fair values due to the short period of time until maturity.
Derivatives, Methods of Accounting, Hedging Derivatives	Derivative Instruments and Hedging Activities We use derivatives to partially offset our exposure to foreign currency, interest rate, aluminum and other commodity risks. We may enter into forward contracts, option contracts, swaps, collars or other derivative instruments to offset some of the risk on expected future cash flows and on certain existing assets and liabilities. However, we may choose not to hedge certain exposures for a variety of reasons including, but not limited to, accounting considerations and the prohibitive economic cost of hedging particular exposures. There can be no assurance the hedges will fully offset the financial impact resulting from movements in foreign currency exchange rates, interest rates, and aluminum and other commodity prices. To help mitigate gross margin fluctuations due to changes in foreign currency exchange rates, certain of our subsidiaries, whose functional currency is the U.S. dollar or the Euro, hedge a portion of their forecasted foreign currency costs denominated in the Mexican Peso and Polish Zloty, respectively. We may hedge portions of our forecasted foreign currency exposure up to 48 months.
Derivatives, Methods of Accounting, Derivatives Not Designated or Qualifying as Hedges

Summary of Significant Accoun_3

Summary of Significant Accounting Policies (Tables)	12 Months Ended
	Dec. 31, 2021
Accounting Policies [Abstract]
Summary of Estimated Useful Lives of the Assets	Classification Expected Useful Life Buildings 15 to 50 years Machinery and equipment 3 to 20 years Leasehold improvements Lease term

Revenue (Tables)

Revenue (Tables)	12 Months Ended
	Dec. 31, 2021
Revenue From Contract With Customer [Abstract]
Summary of Opening and Closing Balances of Company's Receivables and Current and Long-term Contract Liabilities	The opening and closing balances of the Company’s receivables and current and long-term contract liabilities are as follows: December 31, 2021 December 31, 2020 Change (Dollars in thousands) Customer receivables $ 74,887 $ 40,785 $ 34,102 Contract liabilities—current 6,887 8,249 (1,362 ) Contract liabilities—noncurrent 10,526 13,106 (2,580 )

Fair Value Measurements (Tables

Fair Value Measurements (Tables)	12 Months Ended
	Dec. 31, 2021
Fair Value Disclosures [Abstract]
Summary of Items Measured at Fair Value	The following tables categorize items measured at fair value at December 31, 2021 and 2020: Fair Value Measurement at Reporting Date Using December 31, 2021 Quoted Prices in Active Markets for Identical Assets (Level 1) Significant Other Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3) (Dollars in thousands) Assets Derivative contracts $ 10,362 $ — $ 10,362 $ — Total $ 10,362 $ — $ 10,362 $ — Liabilities . Derivative contracts $ 19,711 $ — $ 19,711 $ — Total $ 19,711 $ — $ 19,711 $ — Fair Value Measurement at Reporting Date Using December 31, 2020 Quoted Prices in Active Markets for Identical Assets (Level 1) Significant Other Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3) (Dollars in thousands) Assets Derivative contracts $ 10,218 $ — $ 10,218 $ — Total $ 10,218 $ — $ 10,218 $ — Liabilities . Derivative contracts $ 15,259 $ — $ 15,259 $ — Total $ 15,259 $ — $ 15,259 $ —
Schedule of Carrying Values and Estimated Fair Values of Debt Instruments	The estimated fair value, as well as the carrying value, of the Company’s debt instruments are shown below: December 31, 2021 December 31, 2020 (Dollars in thousands) Estimated aggregate fair value $ 605,874 $ 624,207 Aggregate carrying value (1) 616,215 643,184 (1) Total debt excluding the impact of unamortized debt issuance costs.

Derivative Financial Instrume_2

Derivative Financial Instruments (Tables)	12 Months Ended
	Dec. 31, 2021
Derivative Instruments And Hedging Activities Disclosure [Abstract]
Summary of Fair Value of Derivatives by Balance Sheet Line Item	The following tables display the fair value of derivatives by balance sheet line item at December 31, 2021 and December 31, 2020: December 31, 2021 Other Current Assets Other Non-current Assets Accrued Liabilities Other Non-current Liabilities (Dollars in thousands) Foreign exchange forward contracts designated as hedging instruments $ 3,161 $ 2,194 $ 1,845 $ 13,565 Foreign exchange forward contracts not designated as hedging instruments 579 — 3 — Aluminum forward contracts designated as hedging instruments 2,677 39 — — Natural gas forward contracts designated as hedging instruments 1,294 418 135 276 Interest rate swap contracts designated as hedging instruments — — 3,887 — Total derivative financial instruments $ 7,711 $ 2,651 $ 5,870 $ 13,841 December 31, 2020 Other Current Assets Other Non-current Assets Accrued Liabilities Other Non-current Liabilities (Dollars in thousands) Foreign exchange forward contracts designated as hedging instruments $ 1,218 $ 6,531 $ 3,435 $ 2,645 Foreign exchange forward contracts not designated as hedging instruments 1,167 — 122 — Aluminum forward contracts designated as hedging instruments 262 — — — Natural gas forward contracts designated as hedging instruments 816 224 22 70 Interest rate swap contracts designated as hedging instruments — — 4,771 4,194 Total derivative financial instruments $ 3,463 $ 6,755 $ 8,350 $ 6,909
Summary of Notional Amount and Estimated Fair Value of Derivative Financial Instruments	The following table summarizes the notional amount and estimated fair value of our derivative financial instruments: December 31, 2021 December 31, 2020 Notional U.S. Dollar Amount Fair Value Notional U.S. Dollar Amount Fair Value (Dollars in thousands) Foreign exchange forward contracts designated as hedging instruments $ 458,769 $ (10,055 ) $ 421,253 $ 1,669 Foreign exchange forward contracts not designated as hedging instruments 24,419 576 71,217 1,045 Aluminum forward contracts designated as hedging instruments 37,609 2,716 4,068 262 Natural gas forward contracts designated as hedging instruments 8,915 1,301 5,523 948 Interest rate swap contracts designated as hedging instruments 200,000 (3,887 ) 200,000 (8,965 ) Total derivative financial instruments $ 729,712 $ (9,349 ) $ 702,061 $ (5,041 )
Summary of Gain or Loss Recognized in Accumulated Other Comprehensive Income or Loss	The following tables summarize the gain or loss recognized in accumulated other comprehensive income or loss (“AOCI”), the amounts reclassified from AOCI into earnings, and the amounts recognized directly into earnings for the years ended December 31, 2021 and 2020: Year Ended December 31, 2021 Amount of Gain or (Loss) Recognized in AOCI on Derivatives Amount of Pre-tax Gain or (Loss) Reclassified from AOCI into Income Amount of Pre-tax Gain or (Loss) Recognized in Income on Derivatives (Dollars in thousands) Derivative contracts $ (7,313 ) $ 4,106 $ (1,047 ) Total $ (7,313 ) $ 4,106 $ (1,047 ) Year Ended December 31, 2020 Amount of Gain or (Loss) Recognized in AOCI on Derivatives Amount of Pre-tax Gain or (Loss) Reclassified from AOCI into Income Amount of Pre-tax Gain or (Loss) Recognized in Income on Derivatives (Dollars in thousands) Derivative contracts $ (11,689 ) $ (8,365 ) $ 2,098 Total $ (11,689 ) $ (8,365 ) $ 2,098

Business Segments (Tables)

Business Segments (Tables)	12 Months Ended
	Dec. 31, 2021
Segment Reporting [Abstract]
Summary of Net Sales and Results of Operations and Total Assets by Reportable Segment	Net Sales Income (Loss) from Operations Year Ended December 31, 2021 2020 2021 2020 (Dollars in thousands) North America $ 744,904 $ 550,079 $ 50,798 $ 8,872 Europe 639,846 550,681 4,578 (189,307 ) $ 1,384,750 $ 1,100,760 $ 55,376 $ (180,435 ) Depreciation and Amortization Capital Expenditures Year Ended December 31, 2021 2020 2021 2020 (Dollars in thousands) North America $ 36,243 $ 34,935 $ 30,005 $ 24,929 Europe 63,392 63,243 34,108 20,109 $ 99,635 $ 98,178 $ 64,113 $ 45,038 Property, Plant and Equipment, net Goodwill and Intangible Assets Year Ended December 31, 2021 2020 2021 2020 (Dollars in thousands) North America $ 214,331 $ 220,145 $ — $ — Europe 280,070 301,979 76,870 110,796 $ 494,401 $ 522,124 $ 76,870 $ 110,796 Total Assets Year Ended December 31, 2021 2020 (Dollars in thousands) North America $ 499,988 $ 479,873 Europe 554,159 629,452 $ 1,054,147 $ 1,109,325 See table below for our net sales and long-lived assets by location: Net Sales Property, Plant and Equipment, net Year Ended December 31, 2021 2020 2021 2020 (Dollars in thousands) U.S. $ 8,166 $ 27,919 $ 2,152 $ 7,324 Mexico 736,738 522,160 212,179 212,821 Germany 227,887 212,689 76,849 82,162 Poland 411,959 337,992 203,221 219,817 $ 1,384,750 $ 1,100,760 $ 494,401 $ 522,124

Accounts Receivable (Tables)

Accounts Receivable (Tables)	12 Months Ended
	Dec. 31, 2021
Receivables [Abstract]
Summary of Accounts Receivable	Year Ended December 31, 2021 2020 (Dollars in thousands) Trade receivables $ 75,713 $ 41,647 Other receivables 8,560 8,211 84,273 49,858 Allowance for doubtful accounts (826 ) (863 ) Accounts receivable, net $ 83,447 $ 48,995
Schedule of Revenues by Major Customers	2021 Percent of Sales 2020 Percent of Sales GM 26 % 24 % VW Group 14 % 16 % Ford 13 % 11 %

Inventories (Tables)

Inventories (Tables)	12 Months Ended
	Dec. 31, 2021
Inventory Disclosure [Abstract]
Summary of Inventories	Year Ended December 31, 2021 2020 (Dollars in thousands) Raw materials $ 47,392 $ 46,712 Work in process 54,891 45,394 Finished goods 69,816 62,874 Inventories, net $ 172,099 $ 154,980

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	December 31, 2021 December 31, 2020 (Dollars in thousands) Land and buildings $ 129,826 $ 149,295 Machinery and equipment 861,097 899,764 Leasehold improvements and others 9,831 14,912 Construction in progress 67,529 46,718 1,068,283 1,110,689 Accumulated depreciation (573,882 ) (588,565 ) Property, plant and equipment, net $ 494,401 $ 522,124

Goodwill and Other Intangible_2

Goodwill and Other Intangible Assets (Tables)	12 Months Ended
	Dec. 31, 2021
Goodwill And Intangible Assets Disclosure [Abstract]
Summary of Finite-Lived and Indefinite-Lived Intangible Assets	Following is a summary of the Company’s finite-lived and indefinite-lived intangible assets and goodwill as of December 31, 2021 and 2020. Year Ended December 31, 2021 Gross Carrying Amount Impairment Accumulated Amortization Currency Translation Net Carrying Amount Remaining Weighted Average Amortization Period (Dollars in thousands) Brand name $ 9,000 $ — $ (8,503 ) $ 258 $ 755 1-2 Technology 15,000 — (14,172 ) 430 1,258 2 Customer relationships 167,000 — (95,540 ) 3,397 74,857 2-7 Total finite 191,000 — (118,215 ) 4,085 76,870 Trade names 14,000 (13,772 ) — (228 ) — Indefinite Total intangibles $ 205,000 $ (13,772 ) $ (118,215 ) $ 3,857 $ 76,870 Year Ended December 31, 2020 Gross Carrying Amount Impairment Accumulated Amortization Currency Translation Net Carrying Amount Remaining Weighted Average Amortization Period (Dollars in thousands) Brand name $ 9,000 $ — $ (6,615 ) $ 399 $ 2,784 2-3 Technology 15,000 — (11,024 ) 666 4,642 1-3 Customer relationships 167,000 — (74,322 ) 10,692 103,370 3-8 Total finite 191,000 — (91,961 ) 11,757 110,796 Trade names 14,000 (13,772 ) — (228 ) — Indefinite Total intangibles $ 205,000 $ (13,772 ) $ (91,961 ) $ 11,529 $ 110,796 Year Ended December 31, 2020 Beginning Balance Ending Balance Gross Accumulated Impairment Net Balance Impairment Currency Translation Gross Accumulated Impairment Net Balance (Dollars in thousands) Goodwill $ 284,337 $ (99,505 ) $ 184,832 $ (182,602 ) $ (2,230 ) $ 282,107 $ (282,107 ) $ —

Debt (Tables)

Debt (Tables)	12 Months Ended
	Dec. 31, 2021
Debt Disclosure [Abstract]
Summary of Long-Term Debt and Related Weighted Average Interest Rates	A summary of long-term debt and the related weighted average interest rates is shown below: December 31, 2021 (Dollars in Thousands) Debt Instrument Total Debt Debt Issuance Costs (1) Total Debt, Net Weighted Average Interest Rate Term Loan Facility $ 349,200 $ (4,338 ) $ 344,862 4.1 % 6.00% Senior Notes 245,809 (3,441 ) 242,368 6.0 % European CapEx loans 18,595 — 18,595 2.3 % Finance leases 2,611 — 2,611 2.8 % $ 616,215 $ (7,779 ) 608,436 Less: Current portion (6,081 ) Long-term debt $ 602,355 December 31, 2020 (Dollars in Thousands) Debt Instrument Total Debt Debt Issuance Costs (1) Total Debt, Net Weighted Average Interest Rate Term Loan Facility $ 349,200 $ (7,155 ) $ 342,045 4.1 % 6.00% Senior Notes 266,928 (4,425 ) 262,503 6.0 % European CapEx loans 23,668 — 23,668 2.3 % Finance leases 3,388 — 3,388 3.0 % $ 643,184 $ (11,580 ) 631,604 Less: Current portion (6,112 ) Long-term debt $ 625,492 (1) Unamortized portion
Schedule of Debt Maturities	Debt maturities due in the next five years and thereafter are as follows: Year Ended December 31, (Dollars in thousands) Debt Maturities Amount 2022 $ 6,081 2023 5,765 2024 352,282 2025 248,036 2026 2,122 Thereafter 1,929 Total debt liabilities $ 616,215

European Non-Controlling Rede_2

European Non-Controlling Redeemable Equity (Tables)	12 Months Ended
	Dec. 31, 2021
Noncontrolling Interest [Abstract]
Summary of Redeemable Noncontrolling Interests	The following table summarizes the European non-controlling redeemable equity activity for the two year period ended December 31, 2021: (Dollars in thousands) Balance at December 31, 2019 $ 6,525 Dividends accrued 205 Dividends paid (46 ) Translation adjustment 2 Purchase of shares (5,020 ) Balance at December 31, 2020 1,666 Dividends accrued 42 Dividends paid (354 ) Translation adjustment (117 ) Purchase of shares (91 ) Balance at December 31, 2021 $ 1,146

Earnings Per Share (Tables)

Earnings Per Share (Tables)	12 Months Ended
	Dec. 31, 2021
Earnings Per Share [Abstract]
Schedule of Earnings Per Share, Basic and Diluted	Year Ended December 31, 2021 2020 (Dollars in thousands, except per share amounts) Basic Earnings Per Share: Net income (loss) $ 3,754 $ (243,561 ) Less: Redeemable preferred stock dividends and accretion (34,050 ) (31,994 ) Less: European non-controlling redeemable equity dividend (42 ) (205 ) Basic numerator $ (30,338 ) $ (275,760 ) Basic loss per share $ (1.17 ) $ (10.81 ) Weighted average shares outstanding – Basic 25,995 25,498 Diluted Earnings Per Share: Net income (loss) $ 3,754 $ (243,561 ) Less: Redeemable preferred stock dividends and accretion (34,050 ) (31,994 ) Less: European non-controlling redeemable equity dividend (42 ) (205 ) Diluted numerator $ (30,338 ) $ (275,760 ) Diluted loss per share $ (1.17 ) $ (10.81 ) Weighted average shares outstanding – Basic 25,995 25,498 Dilutive effect of common share equivalents — — Weighted average shares outstanding – Diluted 25,995 25,498

Income Taxes (Tables)

Income Taxes (Tables)	12 Months Ended
	Dec. 31, 2021
Income Tax Disclosure [Abstract]
Income (Loss) Before Income Taxes From Domestic and International Jurisdictions	Income/(loss) before income taxes from domestic and international jurisdictions is comprised of the following: Year Ended December 31, 2021 2020 (Dollars in thousands) Income (loss) before income taxes: Domestic $ (44,129 ) $ (74,151 ) Foreign 55,320 (154,529 ) $ 11,191 $ (228,680 )
Benefit (Provision) for Income Taxes	The benefit/(provision) for income taxes is comprised of the following: Year Ended December 31, 2021 2020 (Dollars in thousands) Current taxes Federal $ (67 ) $ 1,970 State (99 ) (29 ) Foreign (9,229 ) (9,333 ) Total current taxes (9,395 ) (7,392 ) Deferred taxes Federal 711 (4,756 ) State — (3,622 ) Foreign 1,247 889 Total deferred taxes 1,958 (7,489 ) Income tax provision $ (7,437 ) $ (14,881 )
Reconciliation of the U.S. Federal Tax Rate	The following is a reconciliation of the U.S. federal tax rate to our effective income tax rate: Year Ended December 31, 2021 2020 Statutory rate 21.0 % 21.0 % State tax provisions, net of federal income tax benefit (14.2 ) 0.6 Tax credits (13.2 ) (0.1 ) Foreign income taxes at rates other than the statutory rate (97.1 ) 10.9 Valuation allowance 203.6 (10.4 ) Changes in tax liabilities, net (89.7 ) (0.2 ) Share based compensation 10.9 (0.2 ) Unremitted non-U.S. Earnings 3.6 (1.7 ) US tax on non-US income 16.3 0.8 Non-deductible charges 22.3 (0.9 ) Impairment of goodwill — (25.3 ) Other 3.0 (1.0 ) Effective income tax rate 66.5 % (6.5 )%
Summary of Deferred Income Tax Assets and Liabilities	Tax effects of temporary differences that gave rise to significant portions of the deferred tax assets and deferred tax liabilities are as follows: Year Ended December 31, 2021 2020 (Dollars in thousands) Deferred income tax assets: Accrued liabilities $ 4,964 $ 3,688 Hedging and foreign currency gains (losses) 9,231 3,323 Deferred compensation 8,162 8,473 Inventory reserves 3,777 5,114 Net loss carryforwards and credits 40,747 48,924 Interest carryforwards 29,366 14,972 Competent authority deferred tax assets and other foreign timing differences 4,739 4,465 Other 1,143 1,714 Total before valuation allowance 102,129 90,673 Valuation allowance (69,388 ) (46,490 ) Net deferred income tax assets 32,741 44,183 Deferred income tax liabilities: Intangibles, property, plant and equipment and other (4,408 ) (17,959 ) Unremitted earnings (4,531 ) (4,468 ) Deferred income tax liabilities (8,939 ) (22,427 ) Net deferred income tax assets $ 23,802 $ 21,756 The classification of our net deferred tax asset is shown below: Year Ended December 31, 2021 2020 (Dollars in thousands) Long-term deferred income tax assets $ 27,715 $ 30,860 Long-term deferred income tax liabilities (3,913 ) (9,104 ) Net deferred tax asset $ 23,802 $ 21,756
Schedule of Unrecognized Tax Positions Roll Forward	Year Ended December 31, 2021 2020 (Dollars in thousands) Beginning balance $ 31,858 $ 30,368 Increases (decreases) due to foreign currency translations $ (1,192 ) 2,265 Increases (decreases) as a result of positions taken during: Prior periods (13,633 ) (1,147 ) Current period 48 372 Settlements with taxing authorities (719 ) — Expiration of applicable statutes of limitation Ending balance $ 16,362 $ 31,858

Leases (Tables)

Leases (Tables)	12 Months Ended
	Dec. 31, 2021
Leases [Abstract]
Schedule of Lease Expense, Cash Flow, Operating and Finance Lease Assets and Liabilities, Average Lease Term and Average Discount Rate	Lease expense, cash flow, operating and finance lease assets and liabilities, average lease term and average discount rate are as follows: Year Ended December 31, 2021 2020 (Dollars in thousands) Lease Expense Finance lease expense: Amortization of right-of-use assets $ 1,325 $ 1,219 Interest on lease liabilities 82 85 Operating lease expense 3,070 3,388 Total lease expense $ 4,477 $ 4,692 Cash Flow Components Cash paid for amounts included in the measurement of lease liabilities: Operating cash outflows from finance leases $ 82 $ 85 Operating cash outflows from operating leases 3,460 3,621 Financing cash outflows from finance leases 1,321 960 Right-of-use assets obtained in exchange for finance lease liabilities, net of terminations and disposals 922 879 Right-of-use assets obtained in exchange for operating lease liabilities, net of terminations and disposals 416 657 Year Ended December 31, 2021 2020 (Dollars in thousands, except lease term and discount rate) Balance Sheet Information Operating leases: Other non-current assets $ 10,772 $ 13,598 Accrued liabilities $ (2,371 ) $ (2,868 ) Other non-current liabilities (8,860 ) (11,513 ) Total operating lease liabilities $ (11,231 ) $ (14,381 ) Finance leases: Property, plant and equipment gross $ 6,603 $ 5,735 Accumulated depreciation (4,644 ) (3,319 ) Property, plant and equipment, net $ 1,959 $ 2,416 Current portion of long-term debt $ (982 ) $ (1,113 ) Long-term debt (less current portion) (1,629 ) (2,275 ) Total finance lease liabilities $ (2,611 ) $ (3,388 ) Lease Term and Discount Rates Weighted-average remaining lease term - finance leases (years) 3.4 3.9 Weighted-average remaining lease term - operating leases (years) 5.0 6.1 Weighted-average discount rate - finance leases 2.8 % 3.0 % Weighted-average discount rate - operating leases 3.6 % 3.8 %
Schedule of Future Minimum Rental Payments Under Finance and Operating Leases	Summarized future minimum payments under our leases are as follows: Year Ended December 31, Amount (Dollars in thousands) Lease Maturities Finance Leases Operating Leases 2022 $ 982 $ 2,789 2023 666 2,445 2024 248 2,193 2025 148 2,100 2026 125 1,975 Thereafter 560 741 Total 2,729 12,243 Less: Imputed interest (118 ) (1,012 ) Total lease liabilities, net of interest $ 2,611 $ 11,231

Retirement Plans (Tables)

Retirement Plans (Tables)	12 Months Ended
	Dec. 31, 2021
Compensation And Retirement Disclosure [Abstract]
Summary of Changes in Plan Assets and Plan Benefit Obligations	The following table summarizes the changes in plan assets and plan benefit obligations. Year Ended December 31, 2021 2020 (Dollars in thousands) Change in benefit obligation Beginning benefit obligation $ 32,640 $ 31,001 Interest cost 823 1,005 Actuarial (gain) loss (928 ) 2,164 Benefit payments (1,415 ) (1,530 ) Ending benefit obligation $ 31,120 $ 32,640
Summary of Defined Benefit Plans	Year Ended December 31, 2021 2020 (Dollars in thousands) Change in plan assets Fair value of plan assets at beginning of year $ — $ — Employer contribution 1,415 1,475 Benefit payments (1,415 ) (1,475 ) Fair value of plan assets at end of year $ — $ — Funded status $ (31,120 ) $ (32,640 ) Amounts recognized in the consolidated balance sheets consist of: Accrued expenses $ (1,432 ) $ (1,447 ) Other non-current liabilities (29,688 ) (31,193 ) Net amount recognized $ (31,120 ) $ (32,640 ) Amounts recognized in accumulated other comprehensive loss consist of: Net actuarial loss $ 9,446 $ 10,760 Prior service cost (1 ) (1 ) Net amount recognized, before tax effect $ 9,445 $ 10,759 Weighted average assumptions used to determine benefit obligations: Discount rate 2.9 % 2.6 % Rate of compensation increase 3.0 % 3.0 %
Summary of Components of Net Periodic Pension Cost	Components of net periodic pension cost are described in the following table: Year Ended December 31, 2021 2020 (Dollars in thousands) Components of net periodic pension cost: Interest cost $ 823 $ 1,005 Amortization of actuarial loss 386 288 Net periodic pension cost $ 1,209 $ 1,293 Weighted average assumptions used to determine net periodic pension cost: Discount rate 2.6 % 3.3 % Rate of compensation increase 3.0 % 3.0 %
Summary of Expected Benefit Payments	Benefit payments during the next ten years, which reflect applicable future service, are as follows: Year Ended December 31, Amount (Dollars in thousands) 2022 $ 1,453 2023 1,458 2024 1,506 2025 1,715 2026 1,779 Years 2027 to 2031 8,911
Periodic Pension Cost, Next Fiscal Year	The following is an estimate of the components of net periodic pension cost in 2022: Estimated Year Ended December 31, 2022 (Dollars in thousands) Interest cost $ 872 Amortization of actuarial loss 332 Estimated 2021 net periodic pension cost $ 1,204

Accrued Expenses (Tables)

Accrued Expenses (Tables)	12 Months Ended
	Dec. 31, 2021
Text Block [Abstract]
Schedule of Accrued Liabilities	Year Ended December 31, 2021 2020 (Dollars in thousands) Payroll and related benefits $ 31,930 $ 26,930 Taxes, other than income taxes 13,973 14,502 Deferred tooling revenue 6,887 8,249 Current portion of derivative liability 5,870 8,350 Short-term operating lease liability 2,371 2,868 Current portion of executive retirement liabilities 1,432 1,447 Dividends and interest 1,417 1,453 Professional fees 687 1,102 Other 6,958 6,178 Accrued liabilities $ 71,525 $ 71,079

Stock-Based Compensation (Table

Stock-Based Compensation (Tables)	12 Months Ended
	Dec. 31, 2021
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]
Summary of RSU, PSU and Option Activity	Equity Incentive Awards Restricted Stock Units Weighted Average Grant Date Fair Value Performance Restricted Stock Units Weighted Average Grant Date Fair Value Options Weighted Average Exercise Price Balance at December 31, 2020 1,213,667 $ 3.59 2,176,290 $ 4.88 24,000 $ 20.39 Granted 411,291 5.94 653,438 8.41 — — Settled (626,004 ) 3.30 (193,778 ) 5.45 — — Forfeited or expired (32,525 ) 8.13 (151,369 ) 12.61 (15,000 ) 22.57 Balance at December 31, 2021 966,429 $ 4.62 2,484,581 $ 6.67 9,000 $ 16.76 Awards estimated to vest in the future 939,298 $ 4.67 1,997,713 $ 6.86 9,000 $ 16.76

Summary of Significant Accoun_4

Summary of Significant Accounting Policies - Additional Information (Detail)	3 Months Ended		12 Months Ended
	Mar. 31, 2020USD ($)	Dec. 31, 2019USD ($)	Dec. 31, 2021USD ($)EmployeeManufacturingFacility	Dec. 31, 2020USD ($)
New Accounting Pronouncements Or Change In Accounting Principle [Line Items]
Number of employees | Employee			7,800
Number of manufacturing facilities | ManufacturingFacility			8
Goodwill impairment charges				$ 182,602,000
Goodwill		$ 184,832,000		0
Indefinite-lived intangible asset impairment charge			$ (13,772,000)	(13,772,000)
Indefinite-lived intangible asset				0
Recognized foreign currency transaction gain (loss), before tax			300,000	(2,400,000)
Cash paid for interest			36,700,000	39,600,000
Cash paid for income taxes			10,500,000	7,300,000
Noncash or part noncash acquisition, fixed assets acquired			$ 11,200,000	$ 900,000
Trade Names [Member]
New Accounting Pronouncements Or Change In Accounting Principle [Line Items]
Indefinite-lived intangible asset impairment charge	$ 11,000,000	2,700,000
European Operations [Member]
New Accounting Pronouncements Or Change In Accounting Principle [Line Items]
Goodwill impairment charges	$ 182,600,000	$ 99,500,000
Sales [Member] | Customer Concentration Risk [Member] | Original Equipment Manufacturers (OEMs) [Member]
New Accounting Pronouncements Or Change In Accounting Principle [Line Items]
Concentration risk, percentage			91.00%
Aluminum Purchases [Member] | Supplier Concentration Risk [Member] | Inventory [Member]
New Accounting Pronouncements Or Change In Accounting Principle [Line Items]
Concentration risk, percentage			56.20%	55.00%
Vendors accounting for more than ten percent of aluminum purchases			2	3

Summary of Significant Accoun_5

Summary of Significant Accounting Policies - Summary of Estimated Useful Lives of the Assets. (Detail)	12 Months Ended
	Dec. 31, 2021
Minimum [Member] | Buildings [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Estimated Useful Lives	15 years
Minimum [Member] | Machinery and Equipment [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Estimated Useful Lives	3 years
Minimum [Member] | Leasehold Improvements [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Estimated Useful Lives	Lease term
Maximum [Member] | Buildings [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Estimated Useful Lives	50 years
Maximum [Member] | Machinery and Equipment [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Estimated Useful Lives	20 years

Revenue - Summary of Opening an

Revenue - Summary of Opening and Closing Balances of Company's Receivables and Current and Long-term Contract Liabilities (Detail) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Customer receivables	$ 74,887	$ 40,785
Contract liabilities—current	6,887	8,249
Contract liabilities—noncurrent	10,526	$ 13,106
Difference between Revenue Guidance in Effect before and after Topic 606 [Member]
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Customer receivables	34,102
Contract liabilities—current	(1,362)
Contract liabilities—noncurrent	$ (2,580)

Revenue - Additional Informatio

Revenue - Additional Information (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Tooling Reimbursement [Member]
Revenue From Contract With Customers [Line Items]
Deferred revenue, revenue recognized	$ 13.1	$ 13.1
Price Adjustments [Member]
Revenue From Contract With Customers [Line Items]
Deferred revenue, revenue recognized	$ 2.6	$ 0.7

Fair Value Measurements - Recur

Fair Value Measurements - Recurring (Detail) - Recurring [Member] - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Assets
Derivative contracts	$ 10,362	$ 10,218
Total	10,362	10,218
Liabilities
Derivative contracts	19,711	15,259
Total	19,711	15,259
Level 2 [Member]
Assets
Derivative contracts	10,362	10,218
Total	10,362	10,218
Liabilities
Derivative contracts	19,711	15,259
Total	$ 19,711	$ 15,259

Fair Value Measurements - Sched

Fair Value Measurements - Schedule of Carrying Values and Estimated Fair Values of Debt Instruments (Detail) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Derivative Instrument Detail [Abstract]
Estimated aggregate fair value	$ 605,874	$ 624,207
Aggregate carrying value	$ 616,215	$ 643,184

Derivative Financial Instrume_3

Derivative Financial Instruments - Additional Information (Detail)	12 Months Ended
	Dec. 31, 2021
Derivative Instruments And Hedging Activities Disclosure [Abstract]
Derivative instruments objectives	We use derivatives to partially offset our exposure to foreign currency, interest rate, aluminum and other commodity risks. We may enter into forward contracts, option contracts, swaps, collars or other derivative instruments to offset some of the risk on expected future cash flows and on certain existing assets and liabilities.
Maximum length of time, foreign currency cash flow hedge	48 months

Derivative Financial Instrume_4

Derivative Financial Instruments - Summary of Fair Value of Derivatives by Balance Sheet Line Item (Detail) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Other Current Assets [Member]
Derivatives, Fair Value [Line Items]
Fair value of derivative assets	$ 7,711	$ 3,463
Other Non-current Assets [Member]
Derivatives, Fair Value [Line Items]
Fair value of derivative assets	2,651	6,755
Accrued Liabilities [Member]
Derivatives, Fair Value [Line Items]
Fair value of derivative liabilities	5,870	8,350
Other Non-current Liabilities [Member]
Derivatives, Fair Value [Line Items]
Fair value of derivative liabilities	13,841	6,909
Designated as Hedging Instrument [Member] | Natural Gas [Member] | Other Current Assets [Member]
Derivatives, Fair Value [Line Items]
Fair value of derivative assets	1,294	816
Designated as Hedging Instrument [Member] | Natural Gas [Member] | Other Non-current Assets [Member]
Derivatives, Fair Value [Line Items]
Fair value of derivative assets	418	224
Designated as Hedging Instrument [Member] | Natural Gas [Member] | Accrued Liabilities [Member]
Derivatives, Fair Value [Line Items]
Fair value of derivative liabilities	135	22
Designated as Hedging Instrument [Member] | Natural Gas [Member] | Other Non-current Liabilities [Member]
Derivatives, Fair Value [Line Items]
Fair value of derivative liabilities	276	70
Foreign Exchange Forward Contracts [Member] | Designated as Hedging Instrument [Member] | Other Current Assets [Member]
Derivatives, Fair Value [Line Items]
Fair value of derivative assets	3,161	1,218
Foreign Exchange Forward Contracts [Member] | Designated as Hedging Instrument [Member] | Other Non-current Assets [Member]
Derivatives, Fair Value [Line Items]
Fair value of derivative assets	2,194	6,531
Foreign Exchange Forward Contracts [Member] | Designated as Hedging Instrument [Member] | Accrued Liabilities [Member]
Derivatives, Fair Value [Line Items]
Fair value of derivative liabilities	1,845	3,435
Foreign Exchange Forward Contracts [Member] | Designated as Hedging Instrument [Member] | Other Non-current Liabilities [Member]
Derivatives, Fair Value [Line Items]
Fair value of derivative liabilities	13,565	2,645
Foreign Exchange Forward Contracts [Member] | Not Designated as Hedging Instrument [Member] | Other Current Assets [Member]
Derivatives, Fair Value [Line Items]
Fair value of derivative assets	579	1,167
Foreign Exchange Forward Contracts [Member] | Not Designated as Hedging Instrument [Member] | Accrued Liabilities [Member]
Derivatives, Fair Value [Line Items]
Fair value of derivative liabilities	3	122
Aluminum Forward Contracts [Member] | Designated as Hedging Instrument [Member] | Other Current Assets [Member]
Derivatives, Fair Value [Line Items]
Fair value of derivative assets	2,677	262
Aluminum Forward Contracts [Member] | Designated as Hedging Instrument [Member] | Other Non-current Assets [Member]
Derivatives, Fair Value [Line Items]
Fair value of derivative assets	39
Interest Rate Swap Contracts Designated as Hedges [Member] | Designated as Hedging Instrument [Member] | Accrued Liabilities [Member]
Derivatives, Fair Value [Line Items]
Fair value of derivative liabilities	$ 3,887	4,771
Interest Rate Swap Contracts Designated as Hedges [Member] | Designated as Hedging Instrument [Member] | Other Non-current Liabilities [Member]
Derivatives, Fair Value [Line Items]
Fair value of derivative liabilities		$ 4,194

Derivative Financial Instrume_5

Derivative Financial Instruments - Summary of Notional Amount and Estimated Fair Value of Derivative Financial Instruments (Detail) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Derivatives, Fair Value [Line Items]
December 31, 2021	$ 729,712	$ 702,061
December 31, 2021	(9,349)	(5,041)
Designated as Hedging Instrument [Member] | Natural Gas [Member]
Derivatives, Fair Value [Line Items]
December 31, 2021	8,915	5,523
December 31, 2021	1,301	948
Designated as Hedging Instrument [Member] | Foreign Exchange Forward Contracts Designated as Hedging Instruments [Member]
Derivatives, Fair Value [Line Items]
December 31, 2021	458,769	421,253
December 31, 2021	(10,055)	1,669
Designated as Hedging Instrument [Member] | Aluminum Forward Contracts [Member]
Derivatives, Fair Value [Line Items]
December 31, 2021	37,609	4,068
December 31, 2021	2,716	262
Designated as Hedging Instrument [Member] | Interest Rate Swap Contracts Designated as Hedges [Member]
Derivatives, Fair Value [Line Items]
December 31, 2021	200,000	200,000
December 31, 2021	(3,887)	(8,965)
Not Designated as Hedging Instrument [Member] | Foreign Exchange Forward Contracts Designated as Hedging Instruments [Member]
Derivatives, Fair Value [Line Items]
December 31, 2021	24,419	71,217
December 31, 2021	$ 576	$ 1,045

Derivative Financial Instrume_6

Derivative Financial Instruments - Summary of Gain or Loss Recognized in Accumulated Other Comprehensive Income or Loss (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Derivatives, Fair Value [Line Items]
Amount of Gain or (Loss) Recognized in AOCI on Derivatives	$ (7,313)	$ (11,689)
Amount of Pre-tax Gain or (Loss) Reclassified from AOCI into Income	4,106	(8,365)
Amount of Pre-tax Gain or (Loss) Recognized in Income on Derivatives	(1,047)	2,098
Derivative [Member]
Derivatives, Fair Value [Line Items]
Amount of Gain or (Loss) Recognized in AOCI on Derivatives	(7,313)	(11,689)
Amount of Pre-tax Gain or (Loss) Reclassified from AOCI into Income	4,106	(8,365)
Amount of Pre-tax Gain or (Loss) Recognized in Income on Derivatives	$ (1,047)	$ 2,098

Business Segments - Summary of

Business Segments - Summary of Net Sales and Results of Operations and Total Assets by Reportable Segment (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Revenues from External Customers and Long-Lived Assets [Line Items]
Net Sales	$ 1,384,750	$ 1,100,760
Income (Loss) from Operations	55,376	(180,435)
Depreciation and Amortization	99,635	98,178
Capital Expenditures	64,113	45,038
Property, Plant and Equipment, net	494,401	522,124
Goodwill and Intangible Assets	76,870	110,796
Total assets	1,054,147	1,109,325
North America [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net Sales	744,904	550,079
Income (Loss) from Operations	50,798	8,872
Depreciation and Amortization	36,243	34,935
Capital Expenditures	30,005	24,929
Property, Plant and Equipment, net	214,331	220,145
Total assets	499,988	479,873
Europe [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net Sales	639,846	550,681
Income (Loss) from Operations	4,578	(189,307)
Depreciation and Amortization	63,392	63,243
Capital Expenditures	34,108	20,109
Property, Plant and Equipment, net	280,070	301,979
Goodwill and Intangible Assets	76,870	110,796
Total assets	$ 554,159	$ 629,452

Business Segments - Net Sales a

Business Segments - Net Sales and Long-Lived Assets by Location (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Revenues from External Customers and Long-Lived Assets [Line Items]
Net Sales	$ 1,384,750	$ 1,100,760
Property, Plant and Equipment, net	494,401	522,124
Property, Plant and Equipment, net	494,401	522,124
U.S. [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net Sales	8,166	27,919
Property, Plant and Equipment, net	2,152	7,324
Property, Plant and Equipment, net	2,152	7,324
Mexico [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net Sales	736,738	522,160
Property, Plant and Equipment, net	212,179	212,821
Property, Plant and Equipment, net	212,179	212,821
Germany [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net Sales	227,887	212,689
Property, Plant and Equipment, net	76,849	82,162
Property, Plant and Equipment, net	76,849	82,162
Poland [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net Sales	411,959	337,992
Property, Plant and Equipment, net	203,221	219,817
Property, Plant and Equipment, net	$ 203,221	$ 219,817

Accounts Receivable - Summary o

Accounts Receivable - Summary of Accounts Receivable (Detail) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Accounts Notes Loans And Financing Receivable Gross Allowance And Net [Abstract]
Trade receivables	$ 75,713	$ 41,647
Other receivables	8,560	8,211
Accounts receivable, gross	84,273	49,858
Allowance for doubtful accounts	(826)	(863)
Accounts receivable, net	$ 83,447	$ 48,995

Accounts Receivable - Additiona

Accounts Receivable - Additional Information (Detail) - Customer Concentration Risk [Member] - Accounts Receivable [Member]	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
General Motors [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Concentration Risk, Percentage	10.00%	11.00%
Volkswagen [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Concentration Risk, Percentage	10.00%	5.00%
Ford [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Concentration Risk, Percentage	9.00%	3.00%

Accounts Receivable - Schedule

Accounts Receivable - Schedule of Revenues by Major Customers (Detail) - Customer Concentration Risk [Member] - Sales [Member]	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
General Motors [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Concentration Risk, Percentage	26.00%	24.00%
Volkswagen [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Concentration Risk, Percentage	14.00%	16.00%
Ford [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Concentration Risk, Percentage	13.00%	11.00%

Inventories - Summary of Invent

Inventories - Summary of Inventories (Detail) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Inventory Disclosure [Abstract]
Raw materials	$ 47,392	$ 46,712
Work in process	54,891	45,394
Finished goods	69,816	62,874
Inventories, net	$ 172,099	$ 154,980

Inventories - Additional Inform

Inventories - Additional Information (Detail) - USD ($) $ in Millions	Dec. 31, 2021	Dec. 31, 2020
Inventory Disclosure [Abstract]
Inventory, non-current	$ 9.7	$ 12.1

Property, Plant and Equipment -

Property, Plant and Equipment - Schedule of Property, Plant and Equipment (Detail) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	$ 1,068,283	$ 1,110,689
Accumulated depreciation	(573,882)	(588,565)
Property, plant and equipment, net	494,401	522,124
Land and Buildings [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	129,826	149,295
Machinery and Equipment [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	861,097	899,764
Leasehold Improvements and Other [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	9,831	14,912
Construction in Progress [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	$ 67,529	$ 46,718

Property, Plant and Equipment_2

Property, Plant and Equipment - Additional Information (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Property Plant And Equipment [Abstract]
Depreciation expense	$ 73.3	$ 72.8

Goodwill and Other Intangible_3

Goodwill and Other Intangible Assets - Additional Information (Detail) - USD ($) $ in Thousands	3 Months Ended		12 Months Ended
	Mar. 31, 2020	Dec. 31, 2019	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Finite-Lived Intangible Assets [Line Items]
Non-cash impairment charge recognized			$ (13,772)	$ (13,772)
Impairment charges	$ 193,600				$ 102,200
Weighted income approach to determine the fair value of the company's reporting units	75.00%
Weighted market approach to determine the fair value of the company's reporting units	25.00%
Amortization of intangible assets			26,300	$ 25,400
Finite-Lived Intangible Assets, Net, Amortization Expense, Fiscal Year Maturity [Abstract]
2022			22,400
2023			20,400
2024			20,400
2025			10,000
2026			$ 2,600
Market Approach Valuation Technique [Member]
Finite-Lived Intangible Assets [Line Items]
Fair value measurements valuation process multiple used	4.9X EBITDA				5.7X EBITDA
Measurement Input, Discount Rate [Member]
Finite-Lived Intangible Assets [Line Items]
Discount rate	12.00%				10.00%
Measurement Input, Long-term Revenue Growth Rate [Member]
Finite-Lived Intangible Assets [Line Items]
Long-term growth rate	1.50%				2.00%
Trade Names [Member]
Finite-Lived Intangible Assets [Line Items]
Non-cash impairment charge recognized	$ 11,000	$ 2,700
European Operations [Member]
Finite-Lived Intangible Assets [Line Items]
Amount of fair value in excess of carrying value	$ 182,600

Goodwill and Other Intangible_4

Goodwill and Other Intangible Assets - Summary of Finite-Lived and Indefinite-Lived Intangible Assets (Detail) - USD ($)	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Finite-Lived Intangible Assets [Line Items]
Finite-lived Intangible Assets, Gross Carrying Amount	$ 191,000,000	$ 191,000,000
Accumulated Amortization	(118,215,000)	(91,961,000)
Finite-lived Intangible Assets, Currency Translation	4,085,000	11,757,000
Finite lived Intangible Assets, Net	76,870,000	110,796,000
Indefinite lived Intangible Assets, Gross Carrying Amount	14,000,000	14,000,000
Indefinite lived Intangible Assets, Gross Carrying Amount, Impairment	13,772,000	13,772,000
Indefinite lived Intangible Assets, Currency Translation	(228,000)	(228,000)
Indefinite lived Intangible Assets, Net		0
Gross Carrying Amount	205,000,000	205,000,000
Impairment	(13,772,000)	(13,772,000)
Currency Translation	3,857,000	11,529,000
Intangibles, net	76,870,000	110,796,000
Goodwill Gross, Beginning Balance	282,107,000	284,337,000
Goodwill Accumulated Impairment, Beginning Balance	(282,107,000)	(99,505,000)
Goodwill Net Balance,Beginning Balance	0	184,832,000
Goodwill, Impairment		(182,602,000)
Goodwill, Currency Translation		(2,230,000)
Goodwill Gross, Ending Balance		282,107,000
Goodwill Accumulated Impairment, Ending Balance		(282,107,000)
Goodwill, Ending Balance		0
Brand Name [Member]
Finite-Lived Intangible Assets [Line Items]
Finite-lived Intangible Assets, Gross Carrying Amount	9,000,000	9,000,000
Accumulated Amortization	(8,503,000)	(6,615,000)
Finite-lived Intangible Assets, Currency Translation	258,000	399,000
Finite lived Intangible Assets, Net	$ 755,000	$ 2,784,000
Brand Name [Member] | Minimum [Member]
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Assets, Remaining Amortization Period	1 year	2 years
Brand Name [Member] | Maximum [Member]
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Assets, Remaining Amortization Period	2 years	3 years
Technology [Member]
Finite-Lived Intangible Assets [Line Items]
Finite-lived Intangible Assets, Gross Carrying Amount	$ 15,000,000	$ 15,000,000
Accumulated Amortization	(14,172,000)	(11,024,000)
Finite-lived Intangible Assets, Currency Translation	430,000	666,000
Finite lived Intangible Assets, Net	$ 1,258,000	$ 4,642,000
Finite-Lived Intangible Assets, Remaining Amortization Period	2 years
Technology [Member] | Minimum [Member]
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Assets, Remaining Amortization Period		1 year
Technology [Member] | Maximum [Member]
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Assets, Remaining Amortization Period		3 years
Customer Relationships [Member]
Finite-Lived Intangible Assets [Line Items]
Finite-lived Intangible Assets, Gross Carrying Amount	$ 167,000,000	$ 167,000,000
Accumulated Amortization	(95,540,000)	(74,322,000)
Finite-lived Intangible Assets, Currency Translation	3,397,000	10,692,000
Finite lived Intangible Assets, Net	$ 74,857,000	$ 103,370,000
Customer Relationships [Member] | Minimum [Member]
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Assets, Remaining Amortization Period	2 years	3 years
Customer Relationships [Member] | Maximum [Member]
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Assets, Remaining Amortization Period	7 years	8 years

Debt - Summary of Long-Term Deb

Debt - Summary of Long-Term Debt and Related Weighted Average Interest Rates (Detail) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Debt Instrument [Line Items]
Total Debt	$ 616,215	$ 643,184
Debt Issuance Costs	(7,779)	(11,580)
Total Debt, Net	608,436	631,604
Less: Current portion	(6,081)	(6,112)
Long-term debt	602,355	625,492
Term Loan Facility [Member]
Debt Instrument [Line Items]
Total Debt	349,200	349,200
Debt Issuance Costs	(4,338)	(7,155)
Total Debt, Net	$ 344,862	$ 342,045
Weighted Average Interest Rate	4.10%	4.10%
Senior Notes [Member] | 6.00% Senior Notes [Member]
Debt Instrument [Line Items]
Total Debt	$ 245,809	$ 266,928
Debt Issuance Costs	(3,441)	(4,425)
Total Debt, Net	$ 242,368	$ 262,503
Weighted Average Interest Rate	6.00%	6.00%
European CapEx Loans [Member]
Debt Instrument [Line Items]
Total Debt	$ 18,595	$ 23,668
Total Debt, Net	$ 18,595	$ 23,668
Weighted Average Interest Rate	2.30%	2.30%
Finance Leases [Member]
Debt Instrument [Line Items]
Total Debt	$ 2,611	$ 3,388
Total Debt, Net	$ 2,611	$ 3,388
Weighted Average Interest Rate	2.80%	3.00%

Debt - Summary of Long-Term D_2

Debt - Summary of Long-Term Debt and Related Weighted Average Interest Rates (Parenthetical) (Detail)	Dec. 31, 2021	Dec. 31, 2020
6.00% Senior Notes [Member] | Senior Notes [Member]
Debt Instrument [Line Items]
Debt instrument, interest rate stated, percentage	6.00%	6.00%

Debt - Additional Information (

Debt - Additional Information (Detail)

May 03, 2021USD ($)

May 02, 2021USD ($)

Jun. 15, 2017EUR (€)

Mar. 22, 2017USD ($)

Jun. 30, 2021USD ($)

Jun. 30, 2021EUR (€)

Jun. 30, 2021

Mar. 31, 2021EUR (€)

Mar. 31, 2020EUR (€)

Dec. 31, 2021USD ($)

Dec. 31, 2021EUR (€)

Dec. 31, 2020USD ($)

Jan. 31, 2020EUR (€)

May 30, 2017USD ($)

Debt Instrument [Line Items]

Debt default, maximum period of failure to comply with obligations, covenants or agreements

60 days

Debt default, holder percent to declare all notes due, minimum

30.00%

30.00%

Term loan facility balance

$ 616,215,000

$ 643,184,000

Long-term debt

$ 608,436,000

$ 631,604,000

Long-term debt, term

5 years

5 years

Commitments Maturing October 31, 2023 [Member]

Debt Instrument [Line Items]

Annual commitment fee

0.50%

European Operations [Member]

Debt Instrument [Line Items]

Long-term debt

$ 6,800,000

$ 70,700,000

Minimum [Member] | Commitments Maturing October 31, 2023 [Member]

Debt Instrument [Line Items]

Annual commitment fee

0.375%

Maximum [Member] | Commitments Maturing October 31, 2023 [Member]

Debt Instrument [Line Items]

Annual commitment fee

0.625%

Senior Notes, 6.00%, due 2025 [Member] | Senior Notes [Member]

Debt Instrument [Line Items]

Debt Instrument, Face Amount | €

€ 250,000,000

Debt instrument, interest rate stated, percentage

6.00%

Senior Secured Term Loan Facility [Member] | Senior Notes [Member]

Debt Instrument [Line Items]

Amount of term loan facility

$ 400,000,000

Line of credit facility maturity date

May 23, 2024

Repayments under term loan facility

$ 50,800,000

Term loan facility balance

349,200,000

Amount outstanding

$ 4,800,000

Senior Secured Term Loan Facility [Member] | London Interbank Offered Rate (LIBOR) [Member] | Minimum [Member] | Senior Notes [Member]

Debt Instrument [Line Items]

Debt instrument, basis spread on variable rate

0.00%

Senior Secured Term Loan Facility [Member] | London Interbank Offered Rate (LIBOR) [Member] | Maximum [Member] | Senior Notes [Member]

Debt Instrument [Line Items]

Debt instrument, basis spread on variable rate

4.00%

Senior Secured Term Loan Facility [Member] | Base Rate [Member] | Senior Notes [Member]

Debt Instrument [Line Items]

Debt instrument, basis spread on variable rate

2.00%

Senior Secured Term Loan Facility [Member] | Federal Funds Effective Swap Rate [Member] | Senior Notes [Member]

Debt Instrument [Line Items]

Debt instrument, basis spread on variable rate

0.50%

Senior Secured Term Loan Facility [Member] | One Month London Interbank Offered Rate (LIBOR) [Member] | Senior Notes [Member]

Debt Instrument [Line Items]

Debt instrument, basis spread on variable rate

1.00%

Senior Secured Term Loan Facility [Member] | One Month LIBOR Plus Margin [Member] | Senior Notes [Member]

Debt Instrument [Line Items]

Debt instrument, basis spread on variable rate

3.00%

Equipment Loan [Member]

Debt Instrument [Line Items]

Debt instrument, interest rate stated, percentage

2.30%

2.30%

Long-term debt

$ 11,800,000

Drew down on loans | €

€ 1,400,000

€ 10,600,000

Debt Instrument Redemption Period One [Member] | Senior Notes, 6.00%, due 2025 [Member] | Senior Notes [Member]

Debt Instrument [Line Items]

Redemption percentage

101.50%

Debt Instrument Redemption Period Two [Member] | Senior Notes, 6.00%, due 2025 [Member] | Senior Notes [Member]

Debt Instrument [Line Items]

Redemption percentage

100.00%

Revolving Credit Facility [Member] | Commitment Maturing May 23, 2022 [Member]

Debt Instrument [Line Items]

Commitment fees percentage

0.375%

Revolving Credit Facility [Member] | Minimum [Member]

Debt Instrument [Line Items]

Net leverage ratio

1.00%

Revolving Credit Facility [Member] | Minimum [Member] | Commitment Maturing May 23, 2022 [Member]

Debt Instrument [Line Items]

Commitment fees percentage

0.25%

Revolving Credit Facility [Member] | Maximum [Member]

Debt Instrument [Line Items]

Net leverage ratio

4.50%

Revolving Credit Facility [Member] | Maximum [Member] | Commitment Maturing May 23, 2022 [Member]

Debt Instrument [Line Items]

Commitment fees percentage

0.50%

Revolving Credit Facility [Member] | London Interbank Offered Rate (LIBOR) [Member]

Debt Instrument [Line Items]

Debt instrument, basis spread on variable rate

3.25%

Revolving Credit Facility [Member] | London Interbank Offered Rate (LIBOR) [Member] | Minimum [Member]

Debt Instrument [Line Items]

Debt instrument, basis spread on variable rate

3.50%

Revolving Credit Facility [Member] | London Interbank Offered Rate (LIBOR) [Member] | Maximum [Member]

Debt Instrument [Line Items]

Debt instrument, basis spread on variable rate

3.00%

Revolving Credit Facility [Member] | Base Rate [Member]

Debt Instrument [Line Items]

Debt instrument, basis spread on variable rate

2.25%

Revolving Credit Facility [Member] | Base Rate [Member] | Minimum [Member]

Debt Instrument [Line Items]

Debt instrument, basis spread on variable rate

2.50%

Revolving Credit Facility [Member] | Base Rate [Member] | Maximum [Member]

Debt Instrument [Line Items]

Debt instrument, basis spread on variable rate

2.00%

Revolving Credit Facility [Member] | Senior Secured Term Loan Facility [Member]

Debt Instrument [Line Items]

Amount of term loan facility

$ 160,000,000

Line of credit facility maturity date

May 23, 2022

Line of credit facility, commitment amount

$ 132,500,000

$ 160,000,000

Outstanding borrowings

$ 0

Revolving Credit Facility [Member] | Senior Secured Term Loan Facility [Member] | Commitment Maturing May 23, 2022 [Member]

Debt Instrument [Line Items]

Line of credit facility, commitment amount

25,000,000

Revolving Credit Facility [Member] | Senior Secured Term Loan Facility [Member] | Commitments Maturing October 31, 2023 [Member]

Debt Instrument [Line Items]

Line of credit facility, commitment amount

$ 107,500,000

Revolving Credit Facility [Member] | Senior Secured Term Loan Facility [Member] | Senior Notes [Member]

Debt Instrument [Line Items]

Amount of availability

$ 127,700,000

Term Loan Facility [Member] | Senior Secured Term Loan Facility [Member]

Debt Instrument [Line Items]

Percentage of capital stock issued

65.00%

65.00%

Equipment Loan [Member] | European Operations [Member]

Debt Instrument [Line Items]

Debt instrument, interest rate stated, percentage

2.20%

2.20%

Debt instrument, maturity date

Mar. 31, 2024

European Revolving Credit Facility [Member]

Debt Instrument [Line Items]

Annual commitment fee

0.625%

Outstanding borrowings

$ 0

Amount outstanding

500,000

€ 400,000

Amount of availability

$ 67,500,000

€ 59,600,000

Debt instrument, maturity date

May 22, 2023

Percentage of management fee

0.07%

European Revolving Credit Facility [Member] | Minimum [Member]

Debt Instrument [Line Items]

Annual commitment fee

0.625%

European Revolving Credit Facility [Member] | Maximum [Member]

Debt Instrument [Line Items]

Annual commitment fee

1.225%

Current borrowing capacity under line of credit | €

€ 60,000,000

European Revolving Credit Facility [Member] | Euribor [Member]

Debt Instrument [Line Items]

Debt instrument, basis spread on variable rate

0.00%

European Revolving Credit Facility [Member] | Euribor [Member] | Minimum [Member]

Debt Instrument [Line Items]

Debt instrument, basis spread on variable rate

2.05%

European Revolving Credit Facility [Member] | Euribor [Member] | Maximum [Member]

Debt Instrument [Line Items]

Debt instrument, basis spread on variable rate

3.50%

European Revolving Credit Facility [Member] | Equipment Loan [Member]

Debt Instrument [Line Items]

Debt instrument, maturity date

Sep. 30, 2027

Quarterly payment

$ 500,000

€ 400,000

Quarterly payment, start date

Jun. 30, 2021

Debt - Schedule of Debt Maturit

Debt - Schedule of Debt Maturities (Detail) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Maturities Of Long Term Debt [Abstract]
2022	$ 6,081
2023	5,765
2024	352,282
2025	248,036
2026	2,122
Thereafter	1,929
Total debt liabilities	$ 616,215	$ 643,184

Redeemable Preferred Stock - Ad

Redeemable Preferred Stock - Additional Information (Detail) - USD ($) $ / shares in Units, $ in Thousands	Aug. 30, 2017	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2017
Temporary Equity [Line Items]
Temporary equity, stock issued during period, shares, new issues		150,000	150,000	150,000
Temporary equity, par value		$ 0.01	$ 0.01	$ 0.01
Proceeds from issuance of redeemable preferred shares				$ 150,000
Preferred stock, dividend rate, percentage		9.00%	9.00%
Preferred stock redemption date		Sep. 14, 2025
Issuance costs				3,700
Embedded derivative liability				10,900
Adjusted proceeds from issuance of redeemable preferred shares				$ 135,500
Cumulative premium accretion		$ 64,400	$ 43,900
Redeemable preferred stock		199,897	$ 179,387
Convertible Preferred Stock Redemption Period Two [Member]
Temporary Equity [Line Items]
Convertible preferred stock, redemption value		$ 300,000
Convertible preferred stock, redemption value percent of stated value		200.00%
Convertible preferred stock, face value		$ 150,000
Common stock, shares issued upon conversion of preferred stock		5,300,000
Series A Redeemable Preferred Stock [Member]
Temporary Equity [Line Items]
Temporary equity, stock issued during period, shares, new issues				140,202
Temporary equity, par value	$ 0.01
Temporary equity, liquidation preference per share	1,000
Temporary equity, conversion price	$ 28.162
Preferred stock, dividend rate, percentage	9.00%
Convertible preferred stock, threshold stock price trigger				$ 84.49
Series B Redeemable Preferred Stock [Member]
Temporary Equity [Line Items]
Temporary equity, stock issued during period, shares, new issues				9,798

European Non-Controlling Rede_3

European Non-Controlling Redeemable Equity - Additional Information (Detail) - € / shares	12 Months Ended
	Dec. 31, 2021	May 30, 2017
UNIWHEELS AG [Member]
Redeemable Noncontrolling Interest [Line Items]
Percentage of voting interest acquired	99.90%	92.30%
Domination and Profit Loss Transfer Agreement [Member]
Redeemable Noncontrolling Interest [Line Items]
Share price per share	€ 62.18
Guaranteed annual dividend for each share that is not tendered	€ 3.23
Guaranteed annual statutory rate for each share that is tendered	4.12%

European Non-Controlling Rede_4

European Non-Controlling Redeemable Equity - Summary of Redeemable Noncontrolling Interests (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Redeemable Noncontrolling Interest [Line Items]
Dividends accrued	$ 42	$ 205
Redeemable Noncontrolling Interest [Member]
Redeemable Noncontrolling Interest [Line Items]
Beginning balance	1,666	6,525
Dividends accrued	42	205
Dividends paid	(354)	(46)
Translation adjustment	(117)	2
Purchase of shares	(91)	(5,020)
Ending Balance	$ 1,146	$ 1,666

Earnings Per Share - Schedule o

Earnings Per Share - Schedule of Earnings Per share, Basic and Diluted (Detail) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Basic Earnings Per Share:
Net income (loss)	$ 3,754	$ (243,561)
Less: Redeemable preferred stock dividends and accretion	(34,050)	(31,994)
Less: European non-controlling redeemable equity dividend	(42)	(205)
Basic numerator	$ (30,338)	$ (275,760)
Basic loss per share	$ (1.17)	$ (10.81)
Weighted average shares outstanding – Basic	25,995	25,498
Diluted Earnings Per Share:
Net income (loss)	$ 3,754	$ (243,561)
Less: Redeemable preferred stock dividends and accretion	(34,050)	(31,994)
Less: European non-controlling redeemable equity dividend	(42)	(205)
Diluted numerator	$ (30,338)	$ (275,760)
Diluted loss per share	$ (1.17)	$ (10.81)
Weighted average shares outstanding – Basic	25,995	25,498
Weighted average shares outstanding – Diluted	25,995	25,498

Income Taxes - Income (Loss) Be

Income Taxes - Income (Loss) Before Income Taxes From Domestic and International Jurisdictions (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Income Tax Disclosure [Abstract]
Domestic	$ (44,129)	$ (74,151)
Foreign	55,320	(154,529)
Consolidated income (loss) before income taxes	$ 11,191	$ (228,680)

Income Taxes - Benefit (Provisi

Income Taxes - Benefit (Provision) for Income Taxes (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Income Tax Disclosure [Abstract]
Federal	$ (67)	$ 1,970
State	(99)	(29)
Foreign	(9,229)	(9,333)
Total current taxes	(9,395)	(7,392)
Federal	711	(4,756)
State		(3,622)
Foreign	1,247	889
Total deferred taxes	1,958	(7,489)
Income tax provision	$ (7,437)	$ (14,881)

Income Taxes - Reconciliation o

Income Taxes - Reconciliation of the U.S. Federal Tax Rate (Detail)	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Income Tax Disclosure [Abstract]
Statutory rate	21.00%	21.00%
State tax provisions, net of federal income tax benefit	(14.20%)	0.60%
Tax credits	(13.20%)	(0.10%)
Foreign income taxes at rates other than the statutory rate	(97.10%)	10.90%
Valuation allowance	203.60%	(10.40%)
Changes in tax liabilities, net	(89.70%)	(0.20%)
Share based compensation	10.90%	(0.20%)
Unremitted non-U.S. Earnings	3.60%	(1.70%)
US tax on non-US income	16.30%	0.80%
Non-deductible charges	22.30%	(0.90%)
Impairment of goodwill		(25.30%)
Other	3.00%	(1.00%)
Effective income tax rate	66.50%	(6.50%)

Income Taxes - Summary of Defer

Income Taxes - Summary of Deferred Income Tax Assets and Liabilities (Detail) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Deferred income tax assets:
Accrued liabilities	$ 4,964	$ 3,688
Hedging and foreign currency gains (losses)	9,231	3,323
Deferred compensation	8,162	8,473
Inventory reserves	3,777	5,114
Net loss carryforwards and credits	40,747	48,924
Interest carryforwards	29,366	14,972
Competent authority deferred tax assets and other foreign timing differences	4,739	4,465
Other	1,143	1,714
Total before valuation allowance	102,129	90,673
Valuation allowance	(69,388)	(46,490)
Net deferred income tax assets	32,741	44,183
Deferred income tax liabilities:
Intangibles, property, plant and equipment and other	(4,408)	(17,959)
Unremitted earnings	(4,531)	(4,468)
Deferred income tax liabilities	(8,939)	(22,427)
Net deferred income tax assets	23,802	21,756
Long-term deferred income tax assets	27,715	30,860
Long-term deferred income tax liabilities	$ (3,913)	$ (9,104)

Income Taxes - Additional Infor

Income Taxes - Additional Information (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Unrecognized Tax Benefits Summary [Line Items]
Valuation allowance	$ 22.9
Tax credit carryforward, amount	3.5
Unrecognized tax benefits that would favorably impact effective tax rate	3.1
Unrecognized tax benefits, income tax penalties and interest accrued	5.8	$ 4.7
U.S. Federal, and Germany [Member]
Unrecognized Tax Benefits Summary [Line Items]
Operating Loss Carryforwards	27
U.S. State [Member]
Unrecognized Tax Benefits Summary [Line Items]
Operating Loss Carryforwards	$ 12.6
Earliest Tax Year [Member]
Unrecognized Tax Benefits Summary [Line Items]
Operating loss carryforwards, expiration year	2022
State tax credit carryforwards, expiration year	2022
Open tax year	2015
Earliest Tax Year [Member] | U.S. [Member]
Unrecognized Tax Benefits Summary [Line Items]
Ongoing tax audits period	2015
Income tax examination year	2015
Latest Tax Year [Member]
Unrecognized Tax Benefits Summary [Line Items]
Operating loss carryforwards, expiration year	2042
State tax credit carryforwards, expiration year	2028
Open tax year	2020
Latest Tax Year [Member] | U.S. [Member]
Unrecognized Tax Benefits Summary [Line Items]
Ongoing tax audits period	2018
Income tax examination year	2018

Income Taxes - Schedule of Unre

Income Taxes - Schedule of Unrecognized Tax Positions Roll Forward (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Income Tax Disclosure [Abstract]
Beginning balance	$ 31,858	$ 30,368
Increases (decreases) due to foreign currency translations	(1,192)	2,265
Increases (decreases) as a result of positions taken during: Prior periods	(13,633)	(1,147)
Current period	48	372
Settlements with taxing authorities	(719)
Ending balance	$ 16,362	$ 31,858

Leases - Additional Information

Leases - Additional Information (Detail)	12 Months Ended
	Dec. 31, 2021
Operating Leased Assets [Line Items]
Lessee, operating lease, option to extend	Certain leases include options to extend the lease term for up to ten years
Minimum [Member]
Operating Leased Assets [Line Items]
Lessee, operating lease, term of contract	1 year
Maximum [Member]
Operating Leased Assets [Line Items]
Lessee, operating lease, term of contract	8 years

Leases - Schedule of Lease Expe

Leases - Schedule of Lease Expense, Cash Flow, Operating and Finance Lease Assets and Liabilities, Average Lease Term and Average Discount Rate (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Finance lease expense:
Amortization of right-of-use assets	$ 1,325	$ 1,219
Interest on lease liabilities	82	85
Operating lease expense	3,070	3,388
Total lease expense	4,477	4,692
Cash paid for amounts included in the measurement of lease liabilities:
Operating cash outflows from finance leases	82	85
Operating cash outflows from operating leases	3,460	3,621
Financing cash outflows from finance leases	1,321	960
Right-of-use assets obtained in exchange for finance lease liabilities, net of terminations and disposals	922	879
Right-of-use assets obtained in exchange for operating lease liabilities, net of terminations and disposals	416	657
Operating leases:
Other non-current assets	$ 10,772	$ 13,598
Operating Lease, Right-of-Use Asset, Statement of Financial Position [Extensible Enumeration]	us-gaap:OtherAssets	us-gaap:OtherAssets
Accrued liabilities	$ (2,371)	$ (2,868)
Operating Lease, Liability, Current, Statement of Financial Position [Extensible Enumeration]	us-gaap:AccountsPayableAndAccruedLiabilitiesCurrent	us-gaap:AccountsPayableAndAccruedLiabilitiesCurrent
Other non-current liabilities	$ (8,860)	$ (11,513)
Operating Lease, Liability, Noncurrent, Statement of Financial Position [Extensible Enumeration]	Other non-current liabilities	Other non-current liabilities
Total operating lease liabilities	$ (11,231)	$ (14,381)
Operating Lease, Liability, Statement of Financial Position [Extensible Enumeration]	us-gaap:AccountsPayableAndAccruedLiabilitiesCurrentAndNoncurrent	us-gaap:AccountsPayableAndAccruedLiabilitiesCurrentAndNoncurrent
Property, plant and equipment gross	$ 6,603	$ 5,735
Accumulated depreciation	(4,644)	(3,319)
Property, plant and equipment, net	$ 1,959	$ 2,416
Finance Lease, Right-of-Use Asset, Statement of Financial Position [Extensible Enumeration]	us-gaap:OtherAssets	us-gaap:OtherAssets
Current portion of long-term debt	$ (982)	$ (1,113)
Finance Lease, Liability, Current, Statement of Financial Position [Extensible Enumeration]	us-gaap:AccountsPayableAndAccruedLiabilitiesCurrent	us-gaap:AccountsPayableAndAccruedLiabilitiesCurrent
Long-term debt (less current portion)	$ (1,629)	$ (2,275)
Finance Lease, Liability, Noncurrent, Statement of Financial Position [Extensible Enumeration]	Other non-current liabilities	Other non-current liabilities
Total finance lease liabilities	$ (2,611)	$ (3,388)
Finance Lease, Liability, Statement of Financial Position [Extensible Enumeration]	us-gaap:AccountsPayableAndAccruedLiabilitiesCurrentAndNoncurrent	us-gaap:AccountsPayableAndAccruedLiabilitiesCurrentAndNoncurrent
Weighted-average remaining lease term - finance leases (years)	3 years 4 months 24 days	3 years 10 months 24 days
Weighted-average remaining lease term - operating leases (years)	5 years	6 years 1 month 6 days
Weighted-average discount rate - finance leases	2.80%	3.00%
Weighted-average discount rate - operating leases	3.60%	3.80%

Leases - Schedule of Future Min

Leases - Schedule of Future Minimum Rental Payments For Finance and Operating Leases (Detail) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Leases [Abstract]
Finance Leases, 2021	$ 982
Finance Leases, 2022	666
Finance Leases, 2023	248
Finance Leases, 2024	148
Finance Leases, 2025	125
Finance Leases, Thereafter	560
Finance Leases, Total	2,729
Finance Leases, Less: Imputed interest	(118)
Finance Leases, Total lease liabilities, net of interest	2,611	$ 3,388
Operating Leases, 2021	2,789
Operating Leases, 2022	2,445
Operating Leases, 2023	2,193
Operating Leases, 2024	2,100
Operating Leases, 2025	1,975
Operating Leases, Thereafter	741
Operating Leases, Total	12,243
Operating Leases, Less: Imputed interest	(1,012)
Operating Leases, Total lease liabilities, net of interest	$ 11,231	$ 14,381

Retirement Plans - Additional I

Retirement Plans - Additional Information (Detail) $ in Millions	12 Months Ended
	Dec. 31, 2021USD ($)Age	Dec. 31, 2020USD ($)
Compensation And Retirement Disclosure [Abstract]
Age for benefits | Age	65
Defined contribution plan, cost recognized | $	$ 1.4	$ 1.3

Retirement Plans - Summary of C

Retirement Plans - Summary of Changes in Plan Assets and Plan Benefit Obligations (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Compensation And Retirement Disclosure [Abstract]
Beginning benefit obligation	$ 32,640	$ 31,001
Interest cost	823	1,005
Actuarial (gain) loss	(928)	2,164
Benefit payments	(1,415)	(1,530)
Ending benefit obligation	$ 31,120	$ 32,640

Retirement Plans - Schedule of

Retirement Plans - Schedule of Defined Benefit Plans Disclosures (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Compensation And Retirement Disclosure [Abstract]
Fair value of plan assets at beginning of year	$ 0	$ 0
Employer contribution	1,415	1,475
Benefit payments	(1,415)	(1,475)
Fair value of plan assets at end of year	0	0
Funded status	(31,120)	(32,640)
Accrued expenses	(1,432)	(1,447)
Other non-current liabilities	(29,688)	(31,193)
Net amount recognized	(31,120)	(32,640)
Net actuarial loss	9,446	10,760
Prior service cost	(1)	(1)
Net amount recognized, before tax effect	$ 9,445	$ 10,759
Discount rate	2.90%	2.60%
Rate of compensation increase	3.00%	3.00%

Retirement Plans - Schedule o_2

Retirement Plans - Schedule of Net Benefit Costs (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Compensation And Retirement Disclosure [Abstract]
Interest cost	$ 823	$ 1,005
Amortization of actuarial loss	386	288
Net periodic pension cost	$ 1,209	$ 1,293
Discount rate	2.60%	3.30%
Rate of compensation increase	3.00%	3.00%

Retirement Plans - Schedule o_3

Retirement Plans - Schedule of Expected Benefit Payments (Detail) $ in Thousands	Dec. 31, 2021USD ($)
Compensation And Retirement Disclosure [Abstract]
2022	$ 1,453
2023	1,458
2024	1,506
2025	1,715
2026	1,779
Years 2027 to 2031	$ 8,911

Retirement Plans - Periodic Pen

Retirement Plans - Periodic Pension Cost, Next Fiscal Year (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Defined Benefit Plan Disclosure [Line Items]
Interest cost		$ 823	$ 1,005
Estimated 2021 net periodic pension cost		$ 1,209	$ 1,293
Scenario, Forecast [Member]
Defined Benefit Plan Disclosure [Line Items]
Interest cost	$ 872
Amortization of actuarial loss	332
Estimated 2021 net periodic pension cost	$ 1,204

Accrued Expenses - Schedule of

Accrued Expenses - Schedule of Accrued Liabilities (Detail) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Payables And Accruals [Abstract]
Payroll and related benefits	$ 31,930	$ 26,930
Taxes, other than income taxes	13,973	14,502
Deferred tooling revenue	6,887	8,249
Current portion of derivative liability	5,870	8,350
Short-term operating lease liability	2,371	2,868
Current portion of executive retirement liabilities	1,432	1,447
Dividends and interest	1,417	1,453
Professional fees	687	1,102
Other	6,958	6,178
Accrued liabilities	$ 71,525	$ 71,079

Stock-Based Compensation - Addi

Stock-Based Compensation - Additional Information (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Authorizes issuance of common stock	4,350,000
Number of authorized shares increased under the Plan	2,000,000
Number of shares available for grant	1,300,000
Stock-based compensation expense	$ 9.5	$ 2.4
Amount of unrecognized stock-based compensation expense	$ 8.9
Weighted average period for recognition	1 year 8 months 12 days
Stock-based compensation increased	$ 4.7
Accrued expense reversed	$ 1.2
Restricted Stock Units [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period	3 years
Performance Shares Unit [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period	3 years

Stock-Based Compensation - Summ

Stock-Based Compensation - Summary of RSU, PSU and Option Activity (Detail)	12 Months Ended
	Dec. 31, 2021$ / sharesshares
Number of Options Outstanding
Number of Options Outstanding, Beginning balance (in shares) | shares	24,000
Forfeited or expired (in shares) | shares	(15,000)
Number of Options Outstanding, Ending balance (in shares) | shares	9,000
Number of Options Outstanding, Awards estimated to vest in the future (in shares) | shares	9,000
Weighted Average Exercise Price
Weighted Average Exercise Price, Beginning balance (in dollars per share) | $ / shares	$ 20.39
Forfeited or expired (in dollars per share) | $ / shares	22.57
Weighted Average Exercise Price, Ending balance (in dollars per share) | $ / shares	16.76
Weighted Average Exercise Price, Awards estimated to vest in the future ( in dollar per share) | $ / shares	$ 16.76
Restricted Stock Units [Member]
Number of Awards
Number of Awards, Beginning balance (in shares) | shares	1,213,667
Granted (in shares) | shares	411,291
Settled (in shares) | shares	(626,004)
Forfeited or expired (in shares) | shares	(32,525)
Number of Awards, Ending balance (in shares) | shares	966,429
Number of awards,Awards estimated to vest in the future (in shares) | shares	939,298
Weighted Average Grant Date Fair Value
Weighted Average Grant Date Fair Value, Beginning balance (in dollars per share) | $ / shares	$ 3.59
Granted (in dollars per share) | $ / shares	5.94
Settled (in dollars per share) | $ / shares	3.30
Forfeited or expired (in dollars per share) | $ / shares	8.13
Weighted Average Grant Date Fair Value, Ending balance (in dollars per share) | $ / shares	4.62
Weighted Average Grant Date Fair Value, Awards estimated to vest in the future (in dollar per share) | $ / shares	$ 4.67
Performance Restricted Stock Units [Member]
Number of Awards
Number of Awards, Beginning balance (in shares) | shares	2,176,290
Granted (in shares) | shares	653,438
Settled (in shares) | shares	(193,778)
Forfeited or expired (in shares) | shares	(151,369)
Number of Awards, Ending balance (in shares) | shares	2,484,581
Number of awards,Awards estimated to vest in the future (in shares) | shares	1,997,713
Performance Shares Unit [Member]
Weighted Average Grant Date Fair Value
Weighted Average Grant Date Fair Value, Beginning balance (in dollars per share) | $ / shares	$ 4.88
Granted (in dollars per share) | $ / shares	8.41
Settled (in dollars per share) | $ / shares	5.45
Forfeited or expired (in dollars per share) | $ / shares	12.61
Weighted Average Grant Date Fair Value, Ending balance (in dollars per share) | $ / shares	6.67
Weighted Average Grant Date Fair Value, Awards estimated to vest in the future (in dollar per share) | $ / shares	$ 6.86

Commitments and Contingencies -

Commitments and Contingencies - Additional Information (Detail) $ in Millions	12 Months Ended
	Dec. 31, 2021USD ($)
Loss from Catastrophes | Other Expense, Net [Member]
Loss Contingencies [Line Items]
Net casualty loss	$ (1.5)

Receivables Factoring - Additio

Receivables Factoring - Additional Information (Detail) - USD ($)	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Accounts Receivable [Line Items]
Trade receivables	$ 775,600,000	$ 522,500,000
Collective limit under factoring arrangements	125,100,000	132,000,000
Factored receivables yet not collected	97,600,000	96,600,000
Other (Expense) Income, Net [Member]
Accounts Receivable [Line Items]
Factoring fees	$ 2,100,000	$ 1,400,000

Restructuring - Additional Info

Restructuring - Additional Information (Detail) - USD ($)	Jul. 15, 2021	Dec. 31, 2021	Jun. 30, 2020	Sep. 30, 2019	Dec. 31, 2020	Dec. 31, 2021	Dec. 31, 2020
Restructuring Cost And Reserve [Line Items]
Restructuring accrual		$ 4,500,000				$ 4,500,000
Proceeds from sale of fixed assets						6,589,000	$ 859,000
Werdohl [Member]
Restructuring Cost And Reserve [Line Items]
Restructuring payments made						0
Werdohl [Member] | Cost of Sales [Member]
Restructuring Cost And Reserve [Line Items]
Restructuring charge		4,500,000
Automotive Racing Market Segment [Member]
Restructuring Cost And Reserve [Line Items]
Restructuring charge			$ 3,400,000
Restructuring charge, write-down of aftermarket inventory to salvage value			1,300,000
Restructuring charge, employee severance			1,000,000		$ 700,000
Restructuring charges, contract terminations costs			500,000
Automotive Racing Market Segment [Member] | Cost of Sales [Member]
Restructuring Cost And Reserve [Line Items]
Restructuring charge			2,800,000
Restructuring charge, employee severance					400,000
Automotive Racing Market Segment [Member] | Selling, General and Administrative Expense [Member]
Restructuring Cost And Reserve [Line Items]
Restructuring charge, employee severance			$ 600,000		$ 300,000
Fayetteville, Arkansas Manufacturing Facility [Member]
Restructuring Cost And Reserve [Line Items]
Restructuring accrual		$ 100,000				100,000
Proceeds from sale of fixed assets	$ 7,100,000
Additional charges to cost of sales						$ 2,200,000	$ 3,300,000
Fayetteville, Arkansas Manufacturing Facility [Member] | Cost of Sales [Member]
Restructuring Cost And Reserve [Line Items]
Restructuring expenses recognized				$ 14,800,000
Fayetteville, Arkansas Manufacturing Facility [Member] | Selling, General and Administrative Expense [Member]
Restructuring Cost And Reserve [Line Items]
Gain on sale of facility	$ 4,400,000

Schedule II - Valuation and Qua

Schedule II - Valuation and Qualifying Accounts (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Allowance for Doubtful Accounts Receivable [Member]
SEC Schedule, 12-09, Valuation and Qualifying Accounts Disclosure [Line Items]
Balance at Beginning of Year	$ 863	$ 2,867
Additions, Charge to Costs and Expenses	484	253
Deductions From Reserves	(521)	(2,257)
Balance at End of Year	826	863
Valuation Allowances for Deferred Tax Assets [Member]
SEC Schedule, 12-09, Valuation and Qualifying Accounts Disclosure [Line Items]
Balance at Beginning of Year	46,490	22,879
Additions, Charge to Costs and Expenses	23,467	22,146
Additions, Other	(569)	1,465
Balance at End of Year	$ 69,388	$ 46,490