Leases - Components of Total Lease Expense (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Operating lease expense:
Long-term operating lease expense	$ 34.6	$ 28.2	$ 21.7
Short-term lease expense	41.3	34.3	17.5
Variable lease expense	18.6	18.8	15.6
Impairments	0.0	0.0	0.2
Operating Lease, Cost	94.5	81.3	55.0
Sublease income	(1.8)	(1.1)	0.0
Total lease expense, net of sublease income	$ 92.7	$ 80.2	$ 55.0