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Accrued Liabilities - Schedule of Accrued Liabilities (Detail) - USD ($)
$ in Millions
Mar. 31, 2020
Dec. 31, 2019
Accrued Liabilities Current [Abstract]    
Accrued capital expenditures $ 40.6 $ 34.7
Accrued interest 14.2 18.7
Other accruals 29.5 35.3
Total $ 84.3 $ 88.7