Leasing - Lease Cost (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Leases [Abstract]
Operating lease expense	$ 34.1	$ 36.0
Amortization of right-of-use assets on finance leases	2.3	1.5
Total lease expense	$ 36.4	$ 37.5