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Commitments and Contingencies - Maturities of Operating Lease Liabilities (Detail)
$ in Millions
Mar. 31, 2020
USD ($)
Commitments And Contingencies Disclosure [Abstract]  
2020 $ 3.9
2021 14.7
2022 13.5
2023 12.3
2024 12.1
Thereafter 19.3
Total lease payments $ 75.8