OTHER GAINS, NET - Additional Information (Detail) - USD ($) $ in Thousands	12 Months Ended
	Jul. 31, 2020	Jul. 31, 2019
Other Income and Expenses [Abstract]
Other gains, net	$ 2,098	$ 4,603
Derecognition of accrued pricing liabilities	810	4,573
Net realized and unrealized foreign currency exchange gain (losses)	900	300
Other, net	$ 398	$ (307)