v3.25.3
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