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Leases - Future Minimum Lease Payments Under Finance and Operating Leases (Details)
$ in Millions
Mar. 31, 2021
USD ($)
Capital Leases, Future Minimum Payments Due, Fiscal Year Maturity [Abstract]  
Remainder of 2021 $ 0.1
2022 0.0
2023 0.0
2024 0.0
2025 0.0
2026 and Thereafter 0.0
Total Future Payments 0.1
Less Imputed Interest 0.0
Present Value of Minimum Lease Payments 0.1
Operating Leases, Future Minimum Payments Due, Fiscal Year Maturity [Abstract]  
Remainder of 2021 17.5
2022 22.0
2023 19.3
2024 13.9
2025 9.1
2026 and Thereafter 24.2
Total Future Payments 106.0
Less Imputed Interest $ 18.4