REVENUE RECOGNITION - Disaggregated Revenue (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Apr. 30, 2020	Apr. 30, 2019	Apr. 30, 2020	Apr. 30, 2019
Disaggregation of Revenue [Line Items]
Revenues	$ 177,351	$ 194,003	$ 617,956	$ 615,359
Marketing solutions offerings
Disaggregation of Revenue [Line Items]
Revenues	98,284	116,006	354,404	362,547
Supply chain management services
Disaggregation of Revenue [Line Items]
Revenues	78,626	77,508	262,242	251,300
Other
Disaggregation of Revenue [Line Items]
Revenues	441	489	1,310	1,512
Products
Disaggregation of Revenue [Line Items]
Revenues	98,284	116,006	354,404	362,547
Products | Transferred over time
Disaggregation of Revenue [Line Items]
Revenues	98,284	116,006	354,404	362,547
Services
Disaggregation of Revenue [Line Items]
Revenues	79,067	77,997	263,552	252,812
Services | Transferred over time
Disaggregation of Revenue [Line Items]
Revenues	79,067	77,997	263,552	252,812
Direct Marketing
Disaggregation of Revenue [Line Items]
Revenues	98,284	116,006	354,404	362,547
Direct Marketing | Marketing solutions offerings
Disaggregation of Revenue [Line Items]
Revenues	98,284	116,006	354,404	362,547
Direct Marketing | Supply chain management services
Disaggregation of Revenue [Line Items]
Revenues	0	0	0	0
Direct Marketing | Other
Disaggregation of Revenue [Line Items]
Revenues	0	0	0	0
Direct Marketing | Products | Transferred over time
Disaggregation of Revenue [Line Items]
Revenues	98,284	116,006	354,404	362,547
Direct Marketing | Services | Transferred over time
Disaggregation of Revenue [Line Items]
Revenues	0	0	0	0
Supply Chain
Disaggregation of Revenue [Line Items]
Revenues	79,067	77,997	263,552	252,812
Supply Chain | Marketing solutions offerings
Disaggregation of Revenue [Line Items]
Revenues	0	0	0	0
Supply Chain | Supply chain management services
Disaggregation of Revenue [Line Items]
Revenues	78,626	77,508	262,242	251,300
Supply Chain | Other
Disaggregation of Revenue [Line Items]
Revenues	441	489	1,310	1,512
Supply Chain | Products | Transferred over time
Disaggregation of Revenue [Line Items]
Revenues	0	0	0	0
Supply Chain | Services | Transferred over time
Disaggregation of Revenue [Line Items]
Revenues	$ 79,067	$ 77,997	$ 263,552	$ 252,812