Income Taxes - Schedule of Components of Provision for Income Taxes (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Current provision (benefit):
Federal	$ 41.0	$ 66.1	$ (38.7)
State and local	19.7	18.5	3.0
Foreign	0.0	0.1	0.1
Current (benefit) provision	60.7	84.7	(35.6)
Deferred provision:
Federal	79.9	7.5	28.7
State and local	28.8	2.3	1.5
Foreign	0.0	0.0	0.1
Deferred provision	108.7	9.8	30.3
Income tax provision (benefit)	$ 169.4	$ 94.5	$ (5.3)