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Retirement and Other Postretirement Benefit Plans - Schedule of Amounts Recognized on Balance Sheet (Details) - USD ($)
$ in Millions
 3 Months Ended 6 Months Ended 12 Months Ended
Jun. 30, 2025
Jun. 30, 2024
Jun. 30, 2025
Jun. 30, 2024
Dec. 31, 2024
Amounts recognized on the balance sheet:          
Other non-current liabilities $ 31.0   $ 31.0   $ 31.9
Defined Benefit Retirement Plans | U.S.          
Amounts recognized on the balance sheet:          
Accrued liabilities 1.2   1.2   16.2
Other non-current liabilities 3.0   3.0   3.9
Total accrued benefit $ 4.2   $ 4.2   $ 20.1
Defined Benefit Plan, Tax Status [Extensible List] Non qualified Non qualified Non qualified Non qualified Non qualified
Defined Benefit Retirement Plans | European          
Amounts recognized on the balance sheet:          
Accrued liabilities $ 1.6   $ 1.6   $ 1.0
Other non-current liabilities 15.6   15.6   11.9
Total accrued benefit 17.2   17.2   12.9
Postretirement Health Care and Life Insurance Benefit Plans          
Amounts recognized on the balance sheet:          
Accrued liabilities 0.2   0.2   0.2
Other non-current liabilities 0.7   0.7   0.6
Total accrued benefit $ 0.9   $ 0.9   $ 0.8