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Profit Sharing, Retirement Savings Plans and Defined Benefit Pension Plans - Changes in Plan Assets and Benefit Obligations Recognized in Other Comprehensive Loss (Income) (Details) - Pension Plan - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Defined Benefit Plan Disclosure [Line Items]    
Current year actuarial (gain) loss $ (2.2) $ 32.6
Prior service cost occurring during the year 0.0 0.2
Amortization of net actuarial loss (5.6) (4.8)
Amortization of prior service credit (0.2) (0.2)
Settlement 0.9 (0.2)
Total recognized in other comprehensive loss (7.1) 27.6
U.S.    
Defined Benefit Plan Disclosure [Line Items]    
Current year actuarial (gain) loss (0.2) 2.7
Prior service cost occurring during the year 0.0 0.2
Amortization of net actuarial loss (1.7) (1.5)
Amortization of prior service credit 0.0 0.0
Settlement 0.0 0.0
Total recognized in other comprehensive loss (1.9) 1.4
International    
Defined Benefit Plan Disclosure [Line Items]    
Current year actuarial (gain) loss (2.0) 29.9
Prior service cost occurring during the year 0.0 0.0
Amortization of net actuarial loss (3.9) (3.3)
Amortization of prior service credit (0.2) (0.2)
Settlement 0.9 (0.2)
Total recognized in other comprehensive loss $ (5.2) $ 26.2