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Leases - Operating Lease Maturities (Details)
$ in Millions
Dec. 31, 2020
USD ($)
Leases [Abstract]  
Six months ending June 30, 2021 $ 52.9
Twelve months ending June 30, 2022 100.5
Twelve months ending June 30, 2023 87.8
Twelve months ending June 30, 2024 65.0
Twelve months ending June 30, 2025 48.5
Thereafter 130.0
Total undiscounted lease obligations 484.7
Less: Imputed interest (29.9)
Net lease obligations $ 454.8