REVENUE RECOGNITION - Additional Information (Detail) - USD ($) $ in Thousands	Oct. 31, 2019	Jul. 31, 2019
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Contract assets	$ 23,800	$ 21,500
Deferred revenue current	3,300
Deferred revenue long-term	2,900	100
Remaining performance obligations	3,400
Deferred revenue	3,390	3,029
Trade Accounts Receivable
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Accounts receivable, trade	$ 113,800	$ 112,100