Other Expenses - Schedule of Other Expenses (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Other Income and Expenses [Abstract]
Severance and related employee benefits	$ 0.3	$ 2.5	$ 2.1	$ 5.5
Strategic initiatives	4.8	6.5	13.2	18.2
Transitioned employees restructuring expense	3.2	0.0	3.2	(0.2)
Facility-exit charges	0.0	2.5	2.9	7.4
Other	3.1	4.2	12.8	11.5
Total other expenses	11.4	15.7	34.2	42.4
Contingent consideration changes included in strategic initiatives	0.0		0.5
COVID-19 related costs, included in Other	$ 2.7	$ 2.6	$ 7.1	$ 7.9