Income Taxes - Schedule of Income from Operations Before Provision for Income Taxes (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Income Tax Disclosure [Abstract]
Domestic	$ 561.8	$ 608.9	$ 343.7
Foreign	0.0	(0.1)	(0.1)
Income before provision for income taxes	$ 561.8	$ 608.8	$ 343.6