Leases - Lease Cost (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021
Leases [Abstract]
Operating lease costs	$ 8.1	$ 14.2
Variable lease costs	4.7	6.2
Sublease income	(1.0)	(2.1)
Total lease costs	$ 11.8	$ 18.3