REVENUE RECOGNITION - Additional Information (Detail) - USD ($) $ in Thousands	Oct. 31, 2020	Jul. 31, 2020	Oct. 31, 2019	Jul. 31, 2019
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Contract assets	$ 18,128	$ 13,016
Deferred revenue - current	2,933	2,860
Deferred revenue - long-term	255	85
Total deferred revenue	3,188	2,945	$ 3,390	$ 3,029
Accounts receivable, trade, net
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Accounts receivable, trade, net	$ 79,898	$ 93,072