REVENUE RECOGNITION - Disaggregated Revenue (Detail) - USD ($) $ in Thousands	12 Months Ended
	Jul. 31, 2020	Jul. 31, 2019
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	$ 782,813	$ 819,830
Supply chain management services
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	444,360	331,022
Marketing solutions offerings
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	336,491	486,902
Other
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	1,962	1,906
Products transferred over time
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	444,360	486,902
Products transferred over time | Transferred over time
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	444,360	486,902
Services transferred over time
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	338,453	332,928
Services transferred over time | Transferred over time
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	338,453	332,928
Direct Marketing
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	444,360	486,902
Direct Marketing | Supply chain management services
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	444,360	486,902
Direct Marketing | Marketing solutions offerings
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	0	0
Direct Marketing | Other
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	0	0
Direct Marketing | Products transferred over time | Transferred over time
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	444,360	486,902
Direct Marketing | Services transferred over time | Transferred over time
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	0	0
Supply Chain
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	338,453	332,928
Supply Chain | Supply chain management services
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	0	0
Supply Chain | Marketing solutions offerings
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	336,491	331,022
Supply Chain | Other
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	1,962	1,906
Supply Chain | Products transferred over time | Transferred over time
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	0	0
Supply Chain | Services transferred over time | Transferred over time
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	$ 338,453	$ 332,928