INCOME TAXES - Difference of Income Tax Expense Attributable to Income from Continuing Operations and Expense Computed using U.S. Federal Income Tax (Detail) - USD ($) $ in Thousands	12 Months Ended
	Jul. 31, 2020	Jul. 31, 2019
Income Tax Disclosure [Abstract]
Computed expected income tax expense (benefit)	$ 160	$ (13,041)
Increase (decrease) in income tax expense resulting from:
Change in valuation allowance	2,227	16,158
Foreign tax rate differential	(23)	(593)
Nondeductible expenses	3,010	2,484
Foreign withholding taxes	553	336
Addition of uncertain tax position reserves	498	645
State benefit of U.S. loss	(624)	0
State income taxes, net of federal benefit	133	113
Other	(17)	(1,432)
Total tax provision	$ 5,917	$ 4,670