Other Expenses - Schedule of Other Expenses (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Other Income and Expenses [Abstract]
Severance and related employee benefits	$ 0.0	$ 1.5
Strategic initiatives	10.1	6.5
Customer employee transition and restructuring expenses	(0.4)	0.0
Facility-exit charges	4.8	1.5
Other	2.6	3.5
Total other expenses	17.1	13.0
Costs related to global business services center in Philippines, included in strategic initiatives	3.1
COVID-19 related costs, included in Other	$ 0.5	$ 1.7