Income Taxes - (Loss) Income From Continuing Operatings (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Income (Loss) from Continuing Operations before Equity Method Investments, Income Taxes, Extraordinary Items, Noncontrolling Interest [Abstract]
Domestic	$ (168.3)	$ (293.8)	$ (249.6)
Foreign	117.6	24.3	20.7
Loss before taxes	$ (50.7)	$ (269.5)	$ (228.9)