REVENUE RECOGNITION - Disaggregated Revenue (Detail) - USD ($)	12 Months Ended
	Jul. 31, 2019	Jul. 31, 2018
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	$ 819,830,000	$ 645,258,000
Transferred at point in time
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	0
Supply chain management services
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	331,022,000
Marketing solutions offerings
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	486,902,000
Other
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	1,906,000
Products
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	486,902,000	299,358,000
Products | Transferred over time
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	486,902,000
Services
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	332,928,000	$ 345,900,000
Services | Transferred over time
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	332,928,000
Supply Chain
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	332,928,000
Supply Chain | Supply chain management services
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	331,022,000
Supply Chain | Marketing solutions offerings
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	0
Supply Chain | Other
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	1,906,000
Supply Chain | Products | Transferred over time
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	0
Supply Chain | Services | Transferred over time
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	332,928,000
Direct Marketing
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	486,902,000
Direct Marketing | Supply chain management services
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	0
Direct Marketing | Marketing solutions offerings
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	486,902,000
Direct Marketing | Other
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	0
Direct Marketing | Products | Transferred over time
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	486,902,000
Direct Marketing | Services | Transferred over time
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	$ 0