v3.26.1
Pay vs Performance Disclosure - USD ($)
 12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
Pay vs Performance Disclosure          
Pay vs Performance Disclosure, Table
Year
Summary
Compensation
Table Total for
CEO (1)
($)
Compensation
Actually Paid
to CEO (2)
($)
Average
Summary
Compensation
Table Total for
Other NEOs (3)
($)
Average
Compensation
Actually Paid to
Other NEOs (4)
($)
Cumulative TSR (5)
($)
Peer Group
Cumulative
TSR (6)
($)
Net Income
(Loss) (7)
 (in millions)
($)
Adjusted
Free Cash
Flow (8)
(in millions)
($)
202511,520,501 13,087,572 3,078,409 3,418,078 76.86 127.05 (19.7)213.0 
202411,123,018 6,054,691 2,737,752 1,924,338 69.90 84.97 35.0 230.3 
202312,198,672 13,718,052 2,926,841 3,080,000 105.64 102.63 (33.6)246.4 
202213,399,781 9,127,710 3,702,956 2,650,073 93.76 88.94 64.3 313.0 
202111,176,460 14,071,422 3,550,563 4,250,396 111.87 117.72 5.9 422.9 
        
Company Selected Measure Name Adjusted free cash flow        
Named Executive Officers, Footnote Reflects amounts reported in the Summary Compensation Table total column for each corresponding year for Mr. Dauch. Reflects the average of the amounts reported in the Summary Compensation Table total column for the NEOs (other than the CEO) as a group for each corresponding year. The NEOs included in calculating the average amounts, for 2025, 2024 and 2023 are Mr. May, Mr. Lynch, Ms. Kemp and Mr. Oal; for 2022 and 2021 are Mr. May, Michael K. Simonte, Norman Willemse and Mr. Lynch.        
Peer Group Issuers, Footnote Represents the weighted peer group TSR, weighted according to the respective companies' stock market capitalization at the beginning of each period for which a return is indicated. The peer group used for this purpose is the annual report peer group (competitor peer group).        
PEO Total Compensation Amount $ 11,520,501 $ 11,123,018 $ 12,198,672 $ 13,399,781 $ 11,176,460
PEO Actually Paid Compensation Amount $ 13,087,572 6,054,691 13,718,052 9,127,710 14,071,422
Adjustment To PEO Compensation, Footnote Reflects amounts of "compensation actually paid" to Mr. Dauch, as computed in accordance with Item 402(v) of Regulation S-K. The amounts do not reflect the actual amount of compensation earned by or paid to Mr. Dauch during the applicable year. In accordance with the requirements of Item 402(v) of Regulation S-K, the following adjustments were made to Mr. Dauch's total compensation for each year to determine compensation actually paid.
2025
$		2024
$		2023
$		2022
     $		2021
     $
Total Compensation as reported in the Summary Compensation Table (SCT)11,520,501 11,123,018 12,198,672 13,399,781 11,176,460 
Pension Values reported in SCT(62,499)(76,135)(53,238)— — 
Fair value of equity awards granted during the fiscal year(5,103,889)(5,136,512)(5,161,125)(5,532,280)(4,879,478)
Pension value attributable to current year's service and any change in pension value attributable to plan amendments made in the current year— — — — — 
Fair value at the end of the year of equity compensation granted in current year6,762,312 4,801,592 5,108,035 4,988,560 5,733,847 
Change in fair value for end of prior fiscal year to vesting date for awards made in prior fiscal years that vested during current fiscal year(496,911)(1,525,002)704,393 (1,903,230)(460,430)
Change in fair value for end of prior fiscal year to end of current fiscal year for awards made in prior fiscal years that were unvested at end of current fiscal year468,058 (3,132,270)921,315 (1,825,121)2,501,023 
Dividends or other earnings paid on equity awards in the covered fiscal year prior to the vesting date that are not otherwise included in the total compensation for the covered fiscal year— — — — — 
Fair value of awards forfeited in current fiscal year determined at end of prior fiscal year— — — — — 
Compensation Actually Paid to CEO13,087,572 6,054,691 13,718,052 9,127,710 14,071,422 
        
Non-PEO NEO Average Total Compensation Amount $ 3,078,409 2,737,752 2,926,841 3,702,956 3,550,563
Non-PEO NEO Average Compensation Actually Paid Amount $ 3,418,078 1,924,338 3,080,000 2,650,073 4,250,396
Adjustment to Non-PEO NEO Compensation Footnote Reflects the average of amounts of "compensation actually paid" to the NEOs (other than the CEO) as a group in accordance with Item 402(v) of Regulation S-K. The amounts do not reflect the actual average amount of compensation earned by or paid to the NEOs during the applicable year. In accordance with the requirements of Item 402(v) of Regulation S-K, the adjustments made to the NEOs' total compensation for each year to determine compensation actually paid are shown below.
2025
$		2024
$		2023
$		2022
      $		2021
      $
Total Compensation as reported SCT3,078,409 2,737,752 2,926,841 3,702,956 3,550,563 
Pension Values reported in SCT(25,476)(21,553)(36,434)— (33,897)
Fair value of equity awards granted during the fiscal year(1,048,520)(1,055,228)(1,060,281)(1,171,412)(1,237,240)
Pension value attributable to current year's service and any change in pension value attributable to plan amendments made in the current year— — — — — 
Fair value at the end of the year of equity compensation granted in current year1,389,219 986,424 1,049,374 1,056,284 1,453,875 
Change in fair value for end of prior fiscal year to vesting date for awards made in prior fiscal years that vested during current fiscal year(71,710)(183,612)90,277 (476,447)(110,404)
Change in fair value for end of prior fiscal year to end of current fiscal year for awards made in prior fiscal years that were unvested at end of current fiscal year96,156 (539,445)110,223 (461,308)627,499 
Dividends or other earnings paid on equity awards in the covered fiscal year prior to the vesting date that are not otherwise included in the total compensation for the covered fiscal year— — — — — 
Fair value of awards forfeited in current fiscal year determined at end of prior fiscal year— — — — — 
Compensation Actually Paid to other NEOs (other than the CEO)3,418,078 1,924,338 3,080,000 2,650,073 4,250,396 
        
Compensation Actually Paid vs. Total Shareholder Return
6047313956989
        
Compensation Actually Paid vs. Net Income
7146825584782
        
Compensation Actually Paid vs. Company Selected Measure
6047313957013
        
Total Shareholder Return Vs Peer Group
6047313956989
        
Tabular List, Table
Our compensation programs are designed to link pay to the Company's financial performance. In addition to adjusted free cash flow, the most important financial measures used by the Committee to link NEO compensation to performance are shown below.
FINANCIAL MEASURES USED TO LINK NEO COMPENSATION ACTUALLY PAID TO COMPANY PERFORMANCE
Adjusted EBITDAAdjusted EBITDA MarginOperational Cash Flow
        
Total Shareholder Return Amount $ 76.86 69.90 105.64 93.76 111.87
Peer Group Total Shareholder Return Amount 127.05 84.97 102.63 88.94 117.72
Net Income (Loss) $ (19,700,000) $ 35,000,000.0 $ (33,600,000) $ 64,300,000 $ 5,900,000
Company Selected Measure Amount 213,000,000.0 230,300,000 246,400,000 313,000,000.0 422,900,000
PEO Name Mr. Dauch        
Additional 402(v) Disclosure Cumulative TSR is calculated by the difference between the Company's share price at the end and the beginning of the measurement period divided by the Company's share price at the beginning of the measurement period. No dividends were paid during any of the years.Reflects Net Income (Loss) as reported in our annual report on Form 10-K for the applicable year.        
Measure:: 1          
Pay vs Performance Disclosure          
Name Adjusted EBITDA        
Measure:: 2          
Pay vs Performance Disclosure          
Name Adjusted EBITDA Margin        
Measure:: 3          
Pay vs Performance Disclosure          
Name Operational Cash Flow        
Measure:: 4          
Pay vs Performance Disclosure          
Name Adjusted free cash flow        
Non-GAAP Measure Description Adjusted free cash flow is a key financial metric used in the 2018 Omnibus Incentive Plan. This metric is a non-GAAP financial measure. Such information is reconciled to its closest GAAP measure in the Non-GAAP Reconciliation in Appendix A.        
PEO | Aggregate Change in Present Value of Accumulated Benefit for All Pension Plans Reported in Summary Compensation Table          
Pay vs Performance Disclosure          
Adjustment to Compensation, Amount $ (62,499) $ (76,135) $ (53,238) $ 0 $ 0
PEO | Pension Adjustments Service Cost          
Pay vs Performance Disclosure          
Adjustment to Compensation, Amount 0 0 0 0 0
PEO | Aggregate Grant Date Fair Value of Equity Award Amounts Reported in Summary Compensation Table          
Pay vs Performance Disclosure          
Adjustment to Compensation, Amount (5,103,889) (5,136,512) (5,161,125) (5,532,280) (4,879,478)
PEO | Year-end Fair Value of Equity Awards Granted in Covered Year that are Outstanding and Unvested          
Pay vs Performance Disclosure          
Adjustment to Compensation, Amount 6,762,312 4,801,592 5,108,035 4,988,560 5,733,847
PEO | Year-over-Year Change in Fair Value of Equity Awards Granted in Prior Years That are Outstanding and Unvested          
Pay vs Performance Disclosure          
Adjustment to Compensation, Amount 468,058 (3,132,270) 921,315 (1,825,121) 2,501,023
PEO | Change in Fair Value as of Vesting Date of Prior Year Equity Awards Vested in Covered Year          
Pay vs Performance Disclosure          
Adjustment to Compensation, Amount (496,911) (1,525,002) 704,393 (1,903,230) (460,430)
PEO | Prior Year End Fair Value of Equity Awards Granted in Any Prior Year that Fail to Meet Applicable Vesting Conditions During Covered Year          
Pay vs Performance Disclosure          
Adjustment to Compensation, Amount 0 0 0 0 0
PEO | Dividends or Other Earnings Paid on Equity Awards not Otherwise Reflected in Total Compensation for Covered Year          
Pay vs Performance Disclosure          
Adjustment to Compensation, Amount 0 0 0 0 0
Non-PEO NEO | Aggregate Change in Present Value of Accumulated Benefit for All Pension Plans Reported in Summary Compensation Table          
Pay vs Performance Disclosure          
Adjustment to Compensation, Amount (25,476) (21,553) (36,434) 0 (33,897)
Non-PEO NEO | Pension Adjustments Service Cost          
Pay vs Performance Disclosure          
Adjustment to Compensation, Amount 0 0 0 0 0
Non-PEO NEO | Aggregate Grant Date Fair Value of Equity Award Amounts Reported in Summary Compensation Table          
Pay vs Performance Disclosure          
Adjustment to Compensation, Amount (1,048,520) (1,055,228) (1,060,281) (1,171,412) (1,237,240)
Non-PEO NEO | Year-end Fair Value of Equity Awards Granted in Covered Year that are Outstanding and Unvested          
Pay vs Performance Disclosure          
Adjustment to Compensation, Amount 1,389,219 986,424 1,049,374 1,056,284 1,453,875
Non-PEO NEO | Year-over-Year Change in Fair Value of Equity Awards Granted in Prior Years That are Outstanding and Unvested          
Pay vs Performance Disclosure          
Adjustment to Compensation, Amount 96,156 (539,445) 110,223 (461,308) 627,499
Non-PEO NEO | Change in Fair Value as of Vesting Date of Prior Year Equity Awards Vested in Covered Year          
Pay vs Performance Disclosure          
Adjustment to Compensation, Amount (71,710) (183,612) 90,277 (476,447) (110,404)
Non-PEO NEO | Prior Year End Fair Value of Equity Awards Granted in Any Prior Year that Fail to Meet Applicable Vesting Conditions During Covered Year          
Pay vs Performance Disclosure          
Adjustment to Compensation, Amount 0 0 0 0 0
Non-PEO NEO | Dividends or Other Earnings Paid on Equity Awards not Otherwise Reflected in Total Compensation for Covered Year          
Pay vs Performance Disclosure          
Adjustment to Compensation, Amount $ 0 $ 0 $ 0 $ 0 $ 0