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Retirement and Other Postretirement Benefit Plans - Additional Information (Details) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended | 12 Months Ended
--- | --- | --- | ---
Sep. 30, 2025 | Sep. 30, 2024 | Sep. 30, 2025 | Sep. 30, 2024 | Dec. 31, 2024
Amounts recognized on the balance sheet: |  |  |  |  |
Employer contribution to defined benefit retirement plans |  |  | $ 16.5 |  |
Defined Benefit Retirement Plans |  |  |  |  |
Amounts recognized on the balance sheet: |  |  |  |  |
Amounts unrelated to service costs, benefit | $ 0.4 | $ 0.2 | 1.1 | $ 0.7 |
Defined Benefit Retirement Plans | U.S. |  |  |  |  |
Amounts recognized on the balance sheet: |  |  |  |  |
Employer contribution to defined benefit retirement plans |  |  | $ 16.2 |  |
Defined Benefit Plan, Tax Status [Extensible List] | Non qualified | Non qualified | Non qualified | Non qualified | Non qualified
Net amortization gain deferral | $ 0.0 | $ 0.2 | $ 0.0 | $ 0.4 |
Defined Benefit Retirement Plans | European |  |  |  |  |
Amounts recognized on the balance sheet: |  |  |  |  |
Employer contribution to defined benefit retirement plans |  |  | 15.9 |  |
Expected employer contribution in full current year | 1.3 |  | 1.3 |  |
Net amortization gain deferral | (0.1) | $ (0.0) | (0.2) | $ (0.1) |
Postretirement Health Care and Life Insurance Benefit Plans | Maximum |  |  |  |  |
Amounts recognized on the balance sheet: |  |  |  |  |
Expected employer contribution in full current year | $ 0.2 |  | $ 0.2 |  |

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Data Type: | na
Balance Type: |
Period Type: |