Income Taxes - Schedule of Income before Income Tax (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Income Tax Disclosure [Abstract]
Domestic	$ 171.3	$ 340.9	$ 193.0
Foreign	6.8	3.9	20.2
Income from continuing operations before taxes	$ 178.1	$ 344.8	$ 213.2