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Employee Benefit Plans - Narratives (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019
Defined Benefit Plan Disclosure |  |  |
Projected benefit obligation | $ 63.5 | $ 62.5 | $ 58.5
Fair value of plan assets | 61.9 | 53.9 | 49.1
Accrued pension liability | 1.6 | 8.6 |
Multiemployer plan, contributions by employer | 0.5 | 0.5 | 0.5
Defined contribution expense | 5.7 | 4.9 | 8.7
Compensation expense | 0.1 | 0.3 | $ 0.3
Scenario, Plan |  |  |
Defined Benefit Plan Disclosure |  |  |
Estimated net periodic pension expense to be amortized over the next fiscal year | $ 2.1 |  |
Hudson |  |  |
Defined Benefit Plan Disclosure |  |  |
Projected benefit obligation |  | 2.9 |
Fair value of plan assets |  | 2.0 |
Accrued pension liability |  | $ 1.0 |

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