Leases - Summary of Components of Lease Expense (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Lease cost
Operating lease cost	$ 12.2	$ 11.6	$ 9.9
Short-term lease cost	20.4	20.7	30.0
Variable lease cost	5.7	5.5	6.7
Finance lease cost
Amortization of right-of-use assets	13.3	13.6	13.1
Interest expense	1.1	1.4	1.6
Total lease cost	$ 52.7	$ 52.8	$ 61.3