Income Taxes - Reconciliation of Statutory and Effective Tax Rates (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Income Tax Disclosure [Abstract]
Income tax provision at statutory rate	$ 61.0	$ 19.8	$ 13.3
Foreign taxes	0.2	(0.1)	0.9
State and local income taxes, net of federal income tax	7.3	3.1	(3.7)
Federal and foreign	0.1	3.5	3.1
Change in valuation allowance	0.0	(5.8)	2.6
Outside basis difference in foreign subsidiaries	0.0	0.0	(0.9)
Tax Credits	(1.9)	0.0	0.0
All other items, net	(0.4)	(0.1)	0.8
Total income tax provision	$ 66.3	$ 20.4	$ 16.1