Other Charges, Net - Restructuring Plans (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Restructuring charges
Restructuring expenses	$ 8.2	$ 15.8	$ 1.4
Gain on the sale of a building			7.7
Other programs
Restructuring charges
Restructuring expenses	8.2	15.8	1.4
Cost of revenues
Restructuring charges
Restructuring expenses	3.4	3.8	5.3
Other charges, net
Restructuring charges
Restructuring expenses	$ 4.8	$ 12.0	$ (3.9)