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Lease Obligations - Narrative (Details) - USD ($)
$ in Millions
3 Months Ended 6 Months Ended
Jun. 30, 2024
Jun. 30, 2023
Jun. 30, 2024
Jun. 30, 2023
Dec. 31, 2023
Lessee, Lease, Description [Line Items]          
Leases, remaining lease terms     15 years    
Finance leases, assets, gross $ 668.4   $ 668.4   $ 679.9
Assets held under finance leases, location Property and equipment, net   Property and equipment, net   Property and equipment, net
Finance leases, assets, net $ 437.5   $ 437.5   $ 473.3
Finance leases, assets, depreciation 22.7 $ 24.5 46.9 $ 52.5  
Operating leases, additions $ 35.6 97.2 $ 115.8 123.5  
Operating leases, term of contract 1 year   1 year    
Operating lease expense $ 48.9 37.5 $ 97.4 72.7  
Operating leases, variable lease costs 4.6 3.6 9.3 7.6  
Operating leases, short-term leases, expense $ 125.4 $ 130.7 $ 261.0 $ 241.8  
Finance leases, weighted average remaining lease term (in years) 2 years 4 months 24 days   2 years 4 months 24 days   2 years 7 months 6 days
Finance leases, weighted average discount rate, percent 4.80%   4.80%   4.70%
Operating leases, weighted average remaining lease term (in years) 3 years 9 months 18 days   3 years 9 months 18 days   3 years 9 months 18 days
Operating leases, weighted average discount rate, percent 5.00%   5.00%   4.80%
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