Income Taxes - Components of Income Tax Expense (Benefit) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Income Tax Disclosure [Abstract]
Current	$ (4.3)	$ (1.4)	$ (5.2)
Deferred	(103.6)	(1.6)	61.6
Income tax expense (benefit)	$ (107.9)	$ (3.0)	$ 56.4