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Leases - Narrative (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Lessee, Lease, Description [Line Items]      
Operating lease term (up to) 9 years 9 months 18 days    
Option to extend the leases (up to) 5 years    
Rent expense related to operating leases     $ 309.7
Rental purchase option asset $ 45.7 $ 11.8  
Future minimum lease payments for short-term leases 13.6    
Maximum guaranteed residual value 779.1    
Obligations for operating leases not yet commenced $ 3.4    
Minimum      
Lessee, Lease, Description [Line Items]      
Lease terms of operating leases not yet commenced 1 year    
Maximum      
Lessee, Lease, Description [Line Items]      
Lease terms of operating leases not yet commenced 7 years    
Related Parties      
Lessee, Lease, Description [Line Items]      
Operating lease term (up to) 10 years    
Lease expense $ 14.3 $ 16.7 $ 14.0