INCOME TAXES - Components of Loss from Continuing Operations before Provision for Income Taxes (Detail) - USD ($) $ in Thousands	12 Months Ended
	Jul. 31, 2021	Jul. 31, 2020
Income Tax Disclosure [Abstract]
U.S.	$ (49,372)	$ (9,168)
Foreign	6,592	9,801
(Loss) income before income taxes	$ (42,780)	$ 633