Income Taxes - Summary of Income (Loss) from Continuing Operations Before Income Taxes (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Income (loss) from continuing operations before income taxes:
U.S.	$ (39.0)	$ (51.6)	$ (10.0)
Non-U.S.	56.1	49.6	69.0
Income (loss) before income taxes	$ 17.1	$ (2.0)	$ 59.0