Restructuring Charges (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Restructuring Cost and Reserve [Line Items]
Severance and termination costs	$ 0.3	$ 1.5
Lease impairment costs	5.3	(0.4)
Other restructuring costs	1.0	0.2
Restructuring charges	6.6	1.3
Severance and termination costs	0.3	1.5
Lease impairment costs	5.3	(0.4)
Other restructuring costs	1.0	0.2
Restructuring charges	$ 6.6	$ 1.3