OTHER GAINS, NET - Components of Other Gains (Losses), Net (Detail) - USD ($) $ in Thousands	12 Months Ended
	Jul. 31, 2020	Jul. 31, 2019
Other Income and Expenses [Abstract]
Foreign currency exchange gains, net	$ 890	$ 337
Derecognition of accrued pricing liabilities	810	4,573
Other, net	398	(307)
Other gains (losses), net	$ 2,098	$ 4,603