REVENUE RECOGNITION - Disaggregated Revenue (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Apr. 30, 2021	Apr. 30, 2020	Apr. 30, 2021	Apr. 30, 2020
Disaggregation of Revenue [Line Items]
Net revenues	$ 151,785	$ 177,351	$ 477,766	$ 617,956
Marketing solutions offerings
Disaggregation of Revenue [Line Items]
Net revenues	102,351	98,284	299,214	354,404
Supply chain management services
Disaggregation of Revenue [Line Items]
Net revenues	48,906	78,626	177,035	262,242
Other
Disaggregation of Revenue [Line Items]
Net revenues	528	441	1,517	1,310
Products
Disaggregation of Revenue [Line Items]
Net revenues	102,351	98,284	299,214	354,404
Products | Transferred over time
Disaggregation of Revenue [Line Items]
Net revenues	102,351	98,284	299,214	354,404
Services
Disaggregation of Revenue [Line Items]
Net revenues	49,434	79,067	178,552	263,552
Services | Transferred over time
Disaggregation of Revenue [Line Items]
Net revenues	49,434	79,067	178,552	263,552
Direct Marketing
Disaggregation of Revenue [Line Items]
Net revenues	102,351	98,284	299,214	354,404
Direct Marketing | Marketing solutions offerings
Disaggregation of Revenue [Line Items]
Net revenues	102,351	98,284	299,214	354,404
Direct Marketing | Supply chain management services
Disaggregation of Revenue [Line Items]
Net revenues	0	0	0	0
Direct Marketing | Other
Disaggregation of Revenue [Line Items]
Net revenues	0	0	0	0
Direct Marketing | Products | Transferred over time
Disaggregation of Revenue [Line Items]
Net revenues	102,351	98,284	299,214	354,404
Direct Marketing | Services | Transferred over time
Disaggregation of Revenue [Line Items]
Net revenues	0	0	0	0
Supply Chain
Disaggregation of Revenue [Line Items]
Net revenues	49,434	79,067	178,552	263,552
Supply Chain | Marketing solutions offerings
Disaggregation of Revenue [Line Items]
Net revenues	0	0	0	0
Supply Chain | Supply chain management services
Disaggregation of Revenue [Line Items]
Net revenues	48,906	78,626	177,035	262,242
Supply Chain | Other
Disaggregation of Revenue [Line Items]
Net revenues	528	441	1,517	1,310
Supply Chain | Products | Transferred over time
Disaggregation of Revenue [Line Items]
Net revenues	0	0	0	0
Supply Chain | Services | Transferred over time
Disaggregation of Revenue [Line Items]
Net revenues	$ 49,434	$ 79,067	$ 178,552	$ 263,552