Commitments and Contingencies - Lease Costs (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021
Commitments and Contingencies Disclosure [Abstract]
Operating lease cost	$ 48.4	$ 57.4
Variable lease cost	10.0	11.5
Total lease cost	58.4	68.9
Operating cash outflows from operating leases	53.1	57.8
ROU assets obtained in exchange for new operating lease liabilities	$ 26.0	$ 29.7
Weighted average remaining lease term (years)	4 years 1 month 6 days	4 years 7 months 6 days
Weighted average discount rate	3.50%	3.30%