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Pensions - Additional Information (Details) - USD ($) $ in Millions | 9 Months Ended
--- | ---
Sep. 30, 2021 | Sep. 30, 2020
Defined Benefit Plan Disclosure [Line Items] |  |
Withdrawal liability from IAM National Pension Fund | $ 0.3 | $ 2.4
U.S. Benefit Plan |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Employer contributions | 1.9 | 5.0
Non-U.S. Benefit Plan |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Employer contributions | 0.9 | $ 1.0
Estimated employer contributions remaining in current year | $ 0.2 |

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