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Employee Benefit Plans - Changes in Plan Assets and Projected Benefit Obligations (Details) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Defined Benefit Plan Disclosure      
Net actuarial loss (gain) $ (0.7) $ 5.8 $ (1.7)
Net amortization 0.4 6.7 (1.2)
Net settlement loss 1.1 0.0 0.0
Net current-period other comprehensive Income (loss), net of taxes (165.9) 68.8  
United States      
Defined Benefit Plan Disclosure      
Net actuarial loss (gain) 3.1 (5.9) 1.7
Net amortization 0.0 (0.9) (0.5)
Effect of foreign exchange rates 0.0 0.0 0.0
Net settlement loss (1.1) 0.0 0.0
Net current-period other comprehensive Income (loss), net of taxes 2.0 (6.8) $ 1.2
International Plans      
Defined Benefit Plan Disclosure      
Net actuarial loss (gain) (2.4) 0.1  
Net amortization 0.0 0.0  
Effect of foreign exchange rates 0.0 4.7  
Net settlement loss 0.0 0.0  
Net current-period other comprehensive Income (loss), net of taxes $ (2.4) $ 4.8