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Leases - Lease Expense and Cash Flow Information (Details) - USD ($)
$ in Millions
 3 Months Ended
Mar. 31, 2022
Mar. 31, 2021
Leases [Abstract]    
Operating lease costs $ 16.1 $ 18.6
Finance lease costs:    
Amortization of leased assets 9.2 7.1
Interest on lease liabilities 9.9 6.3
Total finance lease costs 19.1 13.4
Variable and short-term lease costs 4.4 5.2
Total lease costs 39.6 37.2
Cash paid for amounts included in the measurement of lease liabilities:    
Operating cash outflows from operating leases 15.6 18.2
Operating cash outflows from finance leases 9.8 5.7
Financing cash outflows from finance leases 6.0 5.0
Right-of-use assets obtained in exchange for operating lease obligations 22.0 6.3
Right-of-use assets obtained in exchange for finance lease obligations $ 89.3 $ 1.4