REVENUE RECOGNITION - Disaggregated Revenue (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jan. 31, 2020	Jan. 31, 2019	Jan. 31, 2020	Jan. 31, 2019
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	$ 215,452	$ 206,223	$ 440,605	$ 421,356
Supply chain management services
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	91,911	87,166	183,616	173,792
Marketing solutions offerings
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	123,117	118,447	256,120	246,541
Other
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	424	610	869	1,023
Goods
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	123,117	118,447	256,120	246,541
Goods | Transferred over time
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	123,117	118,447	256,120	246,541
Services
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	92,335	87,776	184,485	174,815
Services | Transferred over time
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	92,335	87,776	184,485	174,815
Supply Chain
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	92,335	87,776	184,485	174,815
Supply Chain | Supply chain management services
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	91,911	87,166	183,616	173,792
Supply Chain | Marketing solutions offerings
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	0	0	0	0
Supply Chain | Other
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	424	610	869	1,023
Supply Chain | Goods | Transferred over time
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	0	0	0	0
Supply Chain | Services | Transferred over time
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	92,335	87,776	184,485	174,815
Direct Marketing
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	123,117	118,447	256,120	246,541
Direct Marketing | Supply chain management services
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	0	0	0	0
Direct Marketing | Marketing solutions offerings
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	123,117	118,447	256,120	246,541
Direct Marketing | Other
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	0	0	0	0
Direct Marketing | Goods | Transferred over time
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	123,117	118,447	256,120	246,541
Direct Marketing | Services | Transferred over time
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	$ 0	$ 0	$ 0	$ 0