Income Taxes - Components of Income Tax Benefit (Expense) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Current tax benefit (expense)
Federal	$ (25.6)	$ (20.8)	$ (89.0)
State	(4.7)	(4.9)	(15.3)
Foreign	0.2	0.0	0.0
Total current	(30.1)	(25.7)	(104.3)
Deferred tax benefit (expense)
Federal	53.9	13.2	33.7
State	4.0	22.8	78.5
Foreign	0.2	(2.1)	38.5
Total deferred	58.1	33.9	150.7
Total income tax benefit	$ 28.0	$ 8.2	$ 46.4