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Leases - Future Minimum Lease Payments (Details) - USD ($)
$ in Millions
Dec. 31, 2020
Dec. 31, 2019
Leases [Abstract]    
2021 $ 71.7  
2022 56.0  
2023 46.8  
2024 37.0  
2025 29.9  
Thereafter 68.2  
Total operating lease payments 309.6  
Less: Imputed interest 25.3  
Total operating lease liabilities $ 284.3 $ 276.8