REVENUE RECOGNITION - Disaggregated Revenue (Detail) - USD ($)	3 Months Ended		9 Months Ended
	Apr. 30, 2019	Apr. 30, 2018	Apr. 30, 2019	Apr. 30, 2018
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	$ 194,003,000	$ 193,921,000	$ 615,359,000	$ 450,181,000
Transferred at point in time
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	0		0
Supply chain management services
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	77,508,000		251,300,000
Perpetual software licenses
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	0		0
Marketing solutions offerings
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	116,006,000		362,547,000
Other
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	489,000		1,512,000
Goods | Transferred over time
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	116,006,000		362,547,000
Services | Transferred over time
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	77,997,000		252,812,000
Americas
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	17,164,000		51,313,000
Americas | Supply chain management services
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	17,164,000		51,313,000
Americas | Perpetual software licenses
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	0		0
Americas | Marketing solutions offerings
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	0		0
Americas | Other
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	0		0
Americas | Goods | Transferred over time
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	0		0
Americas | Services | Transferred over time
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	17,164,000		51,313,000
Asia
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	39,312,000		128,123,000
Asia | Supply chain management services
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	39,312,000		128,123,000
Asia | Perpetual software licenses
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	0		0
Asia | Marketing solutions offerings
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	0		0
Asia | Other
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	0		0
Asia | Goods | Transferred over time
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	0		0
Asia | Services | Transferred over time
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	39,312,000		128,123,000
Europe
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	16,747,000		56,718,000
Europe | Supply chain management services
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	16,747,000		56,718,000
Europe | Perpetual software licenses
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	0		0
Europe | Marketing solutions offerings
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	0		0
Europe | Other
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	0		0
Europe | Goods | Transferred over time
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	0		0
Europe | Services | Transferred over time
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	16,747,000		56,718,000
Direct Marketing
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	116,006,000		362,547,000
Direct Marketing | Supply chain management services
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	0		0
Direct Marketing | Perpetual software licenses
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	116,006,000		362,547,000
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	116,006,000		362,547,000
Direct Marketing | Services | Transferred over time
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	0		0
e-Business services
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	4,774,000		16,658,000
e-Business services | Supply chain management services
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	4,285,000		15,146,000
e-Business services | Perpetual software licenses
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	0		0
e-Business services | Marketing solutions offerings
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	0		0
e-Business services | Other
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	489,000		1,512,000
e-Business services | Goods | Transferred over time
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	0		0
e-Business services | Services | Transferred over time
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	$ 4,774,000		$ 16,658,000