DEBT - Additional Information (Details)		3 Months Ended
Feb. 28, 2019 USD ($) $ / shares	Oct. 31, 2021 USD ($)	Jul. 31, 2021 USD ($)
Debt Instrument [Line Items]
Long-term debt		$ 372,123,000	$ 373,134,000
Debt instrument, interest rate, effective percentage		27.80%
SPHG Holdings
Debt Instrument [Line Items]
Conversion to common stock	$ 1,000
Conversion ratio (shares)	0.4212655
Initial conversion price (in usd per share) \| $ / shares	$ 2.37
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		28 months
Long-term debt		$ 9,729,000	$ 9,343,000

The value of the financial instrument issued [noncash or part noncash] in the conversion of stock. Noncash is defined as transactions during a period that do not result in cash receipts or cash payments in the period. "Part noncash" refers to that portion of the transaction not resulting in cash receipts or cash payments in the period.

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The price per share of the conversion feature embedded in the debt instrument.

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Ratio applied to the conversion of debt instrument into equity with equity shares divided by debt principal amount.

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Remaining amortization period for discount on the liability component of convertible debt which may be settled in cash upon conversion, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Face (par) amount of debt instrument at time of issuance.

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Effective interest rate for the funds borrowed under the debt agreement considering interest compounding and original issue discount or premium.

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Contractual interest rate for funds borrowed, under the debt agreement.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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