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Other Accrued Liabilities and Other Long-Term Liabilities - Other Accrued Liabilities (Detail) - USD ($)
$ in Millions
Dec. 31, 2020
Jun. 30, 2020
Payables And Accruals [Abstract]    
Customer obligations $ 34.6 $ 29.0
Inventory obligations 26.9 27.9
Operating lease liabilities 10.5 6.5
Other 25.4 27.6
Other accrued liabilities $ 97.4 $ 91.0