Leases - Lease Cost (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Finance lease cost:
Amortization of right-of-use assets	$ 4.2	$ 4.6	$ 3.1
Interest on lease liabilities	0.6	0.7	0.6
Operating lease cost	47.6	41.4	45.6
Short-term lease cost	22.6	24.6	25.5
Variable lease cost	6.9	6.8	6.4
Sublease income	(12.1)	(4.8)	(4.4)
Total lease cost	$ 69.9	$ 73.3	$ 76.8