INCOME TAXES - Components of Total Unrecognized Tax Benefits (Detail) - USD ($) $ in Thousands	Jul. 31, 2021	Jul. 31, 2020	Jul. 31, 2019	Jul. 31, 2018
Income Tax Disclosure [Abstract]
Unrecognized tax benefits	$ 17,025	$ 14,238	$ 13,848	$ 13,004
Reduction to unrecognized tax benefits which offset tax credit and loss carryforwards	(725)	(809)
Accrued interest and penalties	2,967	2,516
Total unrecognized tax benefits	19,267	15,945
Short-term, included in “Income and other taxes”	3,423	3,180
Long-term	15,844	12,765
Total unrecognized tax benefits	$ 19,267	$ 15,945