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Leases - Components of Lease Expense (Details) - USD ($)
$ in Millions
 3 Months Ended
Mar. 31, 2024
Mar. 31, 2023
Operating lease costs:    
Amortization of ROU assets $ 45.1 $ 44.0
Total operating lease costs 45.1 44.0
Financing lease costs:    
Variable lease costs 3.5 2.5
Total lease costs 87.8 72.3
Financing Leases    
Financing lease costs:    
Amortization of ROU assets 1.9 1.9
Interest on lease liabilities 4.3 3.6
Total financing lease costs 6.2 5.5
DLF Obligations    
Financing lease costs:    
Amortization of ROU assets 9.0 5.1
Interest on lease liabilities 24.0 15.2
Total financing lease costs $ 33.0 $ 20.3