SEGMENT INFORMATION - Summarized Financial Information of Net Revenue from External Customers by Group of Services (Detail) - USD ($) $ in Thousands	12 Months Ended
	Jul. 31, 2021	Jul. 31, 2020
Segment Reporting, Revenue Reconciling Item [Line Items]
Revenues	$ 613,766	$ 782,813
Direct Marketing
Segment Reporting, Revenue Reconciling Item [Line Items]
Revenues	387,510	444,360
Supply Chain
Segment Reporting, Revenue Reconciling Item [Line Items]
Revenues	$ 226,256	$ 338,453