Lease Obligations - Narrative (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021	Dec. 31, 2021
Lessee, Lease, Description [Line Items]
Leases, remaining lease terms			11 years
Finance leases, assets, gross	$ 624.8		$ 624.8		$ 653.5
Assets held under finance leases, location	Property and equipment, net		Property and equipment, net		Property and equipment, net
Finance leases, assets, net	$ 452.3		$ 452.3		$ 468.5
Finance leases, assets, depreciation	20.0	$ 18.7	40.3	$ 37.7
Operating leases, additions	$ 18.4	79.7	$ 45.3	85.3
Operating leases, term of contract	1 year		1 year
Operating leases, expense	$ 33.9	28.1	$ 67.9	55.5
Operating leases, variable lease costs	2.5	2.9	5.5	5.1
Operating leases, short-term leases, expense	$ 53.7	$ 130.8	$ 159.3	240.9
Finance leases, weighted average remaining lease term (in years)	2 years 9 months 18 days		2 years 9 months 18 days
Finance leases, weighted average discount rate, percent	3.40%		3.40%
Operating leases, weighted average remaining lease term (in years)	4 years 3 months 18 days		4 years 3 months 18 days
Operating leases, weighted average discount rate, percent	2.90%		2.90%
Leases not yet commenced, undiscounted amount	$ 20.0		$ 20.0
Leases not yet commenced, term of contract	4 years		4 years
2022 Acquisitions
Lessee, Lease, Description [Line Items]
Operating leases, additions				$ 74.6
Minimum | Equipment Leases
Lessee, Lease, Description [Line Items]
Leases, renewal term			1 year
Minimum | Facility Leases
Lessee, Lease, Description [Line Items]
Leases, renewal term			1 year
Maximum | Equipment Leases
Lessee, Lease, Description [Line Items]
Leases, renewal term			5 years
Maximum | Facility Leases
Lessee, Lease, Description [Line Items]
Leases, renewal term			5 years