REVENUE RECOGNITION - Disaggregated Revenue (Detail) - USD ($) $ in Thousands	3 Months Ended
	Oct. 31, 2019	Oct. 31, 2018
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	$ 225,153	$ 215,133
Supply chain management services
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	91,705	86,626
Marketing solutions offerings
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	133,003	128,094
Other
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	445	413
Goods | Transferred over time
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	133,003	128,094
Services | Transferred over time
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	92,150	87,039
Supply Chain
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	92,150	87,039
Supply Chain | Supply chain management services
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	91,705	86,626
Supply Chain | Marketing solutions offerings
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	0	0
Supply Chain | Other
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	445	413
Supply Chain | Goods | Transferred over time
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	0	0
Supply Chain | Services | Transferred over time
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	92,150	87,039
Direct Marketing
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	133,003	128,094
Direct Marketing | Supply chain management services
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	0	0
Direct Marketing | Marketing solutions offerings
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	133,003	128,094
Direct Marketing | Other
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	0	0
Direct Marketing | Goods | Transferred over time
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	133,003	128,094
Direct Marketing | Services | Transferred over time
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	$ 0	$ 0