v3.26.1
Shareholders' Equity - Components of Accumulated Other Comprehensive Loss, Net of Tax (Details) - USD ($)
$ in Millions
Mar. 31, 2026
Dec. 31, 2025
Mar. 31, 2025
Dec. 31, 2024
Accumulated Other Comprehensive Income (Loss) [Line Items]        
Accumulated other comprehensive loss $ 2,065.5 $ 2,060.3 $ 2,104.9 $ 2,126.9
Gain on interest rate swap, net of income taxes of $0.2 on both dates        
Accumulated Other Comprehensive Income (Loss) [Line Items]        
Accumulated other comprehensive loss 0.4 0.5    
Defined benefit pension plans, net of income tax benefit of $(20.6) on both dates        
Accumulated Other Comprehensive Income (Loss) [Line Items]        
Accumulated other comprehensive loss 23.8 24.0    
Retiree health care plan, net of income taxes of $ 2.0 and $2.1, respectively        
Accumulated Other Comprehensive Income (Loss) [Line Items]        
Accumulated other comprehensive loss 0.5 0.6    
Foreign currency translation        
Accumulated Other Comprehensive Income (Loss) [Line Items]        
Accumulated other comprehensive loss (263.9) (249.7)    
Translation loss on long-term intercompany loans, net of income taxes of $19.2 and $19.1, respectively        
Accumulated Other Comprehensive Income (Loss) [Line Items]        
Accumulated other comprehensive loss (133.7) (133.6)    
(Loss) gain on derivative instruments, net of income tax benefit of $(44.9) and $(0.7), respectively        
Accumulated Other Comprehensive Income (Loss) [Line Items]        
Accumulated other comprehensive loss (39.2) (53.9)    
Accumulated other comprehensive loss        
Accumulated Other Comprehensive Income (Loss) [Line Items]        
Accumulated other comprehensive loss $ (412.1) $ (412.1) $ (447.1) $ (443.0)