Leases - Lease Cost (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Lessee Disclosure [Abstract]
Fixed lease cost	$ 8.5	$ 11.4	$ 24.2	$ 27.8
Variable lease cost	0.6	0.6	1.9	1.8
Total lease cost	$ 9.1	$ 12.0	$ 26.1	$ 29.6