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Other Comprehensive Loss - Schedule of Components of Accumulated Other Comprehensive Income (Details) - USD ($)
$ in Millions
Mar. 31, 2025
Dec. 31, 2024
Mar. 31, 2024
Dec. 31, 2023
Accumulated Other Comprehensive Income (Loss) [Line Items]        
Accumulated other comprehensive income, net of tax $ 428.2 $ 858.5 $ 906.9 $ 949.1
Accumulated other comprehensive income, net of tax        
Accumulated Other Comprehensive Income (Loss) [Line Items]        
Accumulated other comprehensive income, net of tax 11.2 13.1 $ 32.6 $ 39.1
Accumulated pension and OPEB liability adjustments        
Accumulated Other Comprehensive Income (Loss) [Line Items]        
Accumulated other comprehensive loss, income tax benefit (expense) 4.9 4.7    
Accumulated other comprehensive income, net of tax (20.5) (20.7)    
Accumulated unrealized gain on derivative instruments        
Accumulated Other Comprehensive Income (Loss) [Line Items]        
Accumulated other comprehensive loss, income tax benefit (expense) (10.2) 10.2    
Accumulated other comprehensive income, net of tax 13.0 19.9    
Accumulated unrealized foreign currency translation adjustments        
Accumulated Other Comprehensive Income (Loss) [Line Items]        
Accumulated other comprehensive loss, income tax benefit (expense) 14.8 14.6    
Accumulated other comprehensive income, net of tax $ 18.7 $ 13.9