Income Taxes - Income From Continuing Operations Before Income Taxes (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Income Tax Disclosure [Abstract]
United States	$ 25.9	$ 48.0	$ 24.4
Foreign	48.2	37.2	10.2
Income from continuing operations before income taxes and equity in earnings of unconsolidated affiliates, net	$ 74.1	$ 85.2	$ 34.6