Accumulated Other Comprehensive Loss - Components of Accumulated Other Comprehensive Loss, Net of Tax (Parenthetical) (Details) - USD ($) $ in Millions	Dec. 31, 2025	Dec. 31, 2024
(Loss) gain on derivative instruments, net of income tax benefit
Accumulated Other Comprehensive Income Loss [Line Items]
Accumulated other comprehensive loss, income taxes	$ (21.4)	$ (0.7)
Accumulated Gain Loss Net Cash Flow Hedge Parent Member
Accumulated Other Comprehensive Income Loss [Line Items]
Accumulated other comprehensive loss, income taxes	19.2	19.1
Defined benefit pension plans and Retiree health care plan | Defined benefit pension plans, net of income tax benefit
Accumulated Other Comprehensive Income Loss [Line Items]
Accumulated other comprehensive loss, income taxes	(16.4)	(20.6)
Defined benefit pension plans and Retiree health care plan | Retiree health care plan, net of income taxes
Accumulated Other Comprehensive Income Loss [Line Items]
Accumulated other comprehensive loss, income taxes	1.8	2.1
Gain on interest rate swap, net of income taxes
Accumulated Other Comprehensive Income Loss [Line Items]
Accumulated other comprehensive loss, income taxes	$ 0.1	$ 0.2