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Derivative Instruments - Summary of Fair Values of the Interest Rate Swap (Detail) - Interest Rate Swap - USD ($)
$ in Thousands
Mar. 31, 2020
Jun. 30, 2019
Prepaid expenses and other current assets    
Derivatives, Fair Value [Line Items]    
Short-term derivative liability $ 1,404 $ 37
Other liabilities    
Derivatives, Fair Value [Line Items]    
Long-term derivative liability $ 3,471 $ 1,248