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DEBT - Additional Information (Detail)
3 Months Ended
Dec. 09, 2020
USD ($)
Feb. 28, 2019
USD ($)
$ / shares
Jan. 31, 2021
USD ($)
Dec. 08, 2020
Jul. 31, 2020
USD ($)
Debt Instrument [Line Items]          
Long-term debt     $ 376,879,000   $ 379,049,000
Debt instrument, interest rate, effective percentage     27.80%    
MidCap Credit Facility          
Debt Instrument [Line Items]          
Dividends     $ 40,000,000.0    
MidCap Credit Facility | First Amendment to the Credit Facility          
Debt Instrument [Line Items]          
Dividends, cash $ 50,000,000.0        
Minimum liquidity required $ 3,000,000.0        
Percentage of eligible accounts 75.00%     50.00%  
SPHG Holdings          
Debt Instrument [Line Items]          
Conversion to common stock   $ 1,000      
Debt conversion price (in usd per share) | $ / shares   $ 2.37      
Debt conversion ratio   0.4212655      
SPHG Holdings | 7.50% Convertible Senior Note due March 1, 2024          
Debt Instrument [Line Items]          
Debt instrument, stated interest rate   7.50%      
Principal amount of note   $ 14,900,000 $ 14,940,000   14,940,000
Debt instrument amortization period     37 months    
Long-term debt     $ 8,659,000   $ 8,054,000