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DEBT - Summary of Interest Expense (Detail) - SPHG Holdings - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Apr. 30, 2020
Apr. 30, 2020
Interest Expense, Debt [Line Items]    
Debt instrument, interest expense $ 690 $ 2,080
Coupon Interest    
Interest Expense, Debt [Line Items]    
Debt instrument, interest expense 280 840
Accretion    
Interest Expense, Debt [Line Items]    
Debt instrument, interest expense $ 410 $ 1,240