Income Taxes - Schedule of Components of Income Before Income Taxes And Income Tax Expense (Benefit) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Income Tax Disclosure [Abstract]
Income (loss) before income taxes	$ 609.2	$ 651.6	$ 734.4
Income tax expense (benefit)
Federal - Current	70.1	115.5	141.5
Federal - Deferred	48.4	11.8	3.5
State - Current and deferred	20.1	21.8	32.6
Income tax expense (benefit)	$ 138.6	$ 149.1	$ 177.6