DEBT - Net Carrying Value of the Notes (Details) - USD ($)	Jan. 31, 2022	Jul. 31, 2021	Feb. 28, 2019
Debt Instrument [Line Items]
Carrying amount of equity component	$ 8,200,000	$ 8,200,000
Total debt, net	371,139,000	373,134,000
SPHG Holdings | 7.50% Convertible Senior Note due March 1, 2024
Debt Instrument [Line Items]
Principal amount of note	14,940,000	14,940,000	$ 14,900,000
Unamortized debt discount	(4,797,000)	(5,597,000)
Total debt, net	$ 10,143,000	$ 9,343,000