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Other Comprehensive Income (Loss) - Schedule of Components of Accumulated Other Comprehensive Income (Details) - USD ($)
$ in Millions
Sep. 30, 2024
Jun. 30, 2024
Dec. 31, 2023
Sep. 30, 2023
Jun. 30, 2023
Dec. 31, 2022
Accumulated Other Comprehensive Income (Loss) [Line Items]            
Accumulated other comprehensive income, net of tax $ 882.3 $ 898.0 $ 949.1 $ 673.0 $ 1,149.0 $ 1,179.3
Accumulated other comprehensive income, net of tax            
Accumulated Other Comprehensive Income (Loss) [Line Items]            
Accumulated other comprehensive income, net of tax 36.7 $ 28.3 39.1 $ (87.0) $ (73.4) $ (95.4)
Accumulated pension and OPEB liability adjustments            
Accumulated Other Comprehensive Income (Loss) [Line Items]            
Accumulated other comprehensive loss, income tax (benefit) expense (4.5)   (4.3)      
Accumulated other comprehensive income, net of tax (19.8)   (20.3)      
Accumulated unrealized gain on derivative instruments            
Accumulated Other Comprehensive Income (Loss) [Line Items]            
Accumulated other comprehensive loss, income tax (benefit) expense 10.9   12.8      
Accumulated other comprehensive income, net of tax 14.1   27.9      
Accumulated unrealized foreign currency translation adjustments            
Accumulated Other Comprehensive Income (Loss) [Line Items]            
Accumulated other comprehensive loss, income tax (benefit) expense (17.8)   (14.6)      
Accumulated other comprehensive income, net of tax $ 42.4   $ 31.5