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Leases - Components of Lease Expense (Details) - USD ($)
$ in Millions
 3 Months Ended 9 Months Ended
Sep. 30, 2023
Sep. 30, 2022
Sep. 30, 2023
Sep. 30, 2022
Operating lease costs:        
Amortization of ROU assets $ 45.9 $ 42.3 $ 131.2 $ 128.1
Total operating lease costs 45.9 42.3 131.2 128.1
Financing lease costs:        
Variable lease costs 3.7 2.3 8.4 7.1
Total lease costs 80.5 63.3 223.5 188.9
Financing Leases        
Financing lease costs:        
Amortization of ROU assets 1.9 1.0 5.8 4.6
Interest on lease liabilities 3.7 2.3 11.0 6.5
Total financing lease costs 5.6 3.3 16.8 11.1
DLF Obligations        
Financing lease costs:        
Amortization of ROU assets 7.8 3.7 18.2 10.1
Interest on lease liabilities 17.5 11.7 48.9 32.5
Total financing lease costs $ 25.3 $ 15.4 $ 67.1 $ 42.6