v3.26.1
Shareholders' Equity - Components of Accumulated Other Comprehensive Loss, Net of Tax (Parenthetical) (Details) - USD ($)
$ in Millions
Mar. 31, 2026
Dec. 31, 2025
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, income taxes $ 19.2 $ 19.2
(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, income taxes (16.4) (21.4)
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, income taxes 0.1 0.1
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, income taxes (16.3) (16.4)
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, income taxes $ 1.8 $ 1.8