Summary of Reconciliation of the Disaggregated Revenue (Detail) - USD ($) $ in Thousands	3 Months Ended
	Oct. 31, 2018	Oct. 31, 2017
Other Revenues [Line Items]
Revenue from contracts with customers	$ 215,133
Total revenue	215,133	$ 102,522
Supply Chain Management Services
Other Revenues [Line Items]
Revenue from contracts with customers	86,626
Marketing Solutions Offerings
Other Revenues [Line Items]
Revenue from contracts with customers	128,094
Other
Other Revenues [Line Items]
Revenue from contracts with customers	413
Goods Transferred Over Time
Other Revenues [Line Items]
Revenue from contracts with customers	128,094
Services Transferred Over Time
Other Revenues [Line Items]
Revenue from contracts with customers	87,039
Direct Marketing
Other Revenues [Line Items]
Revenue from contracts with customers	128,094
Total revenue	128,094
Direct Marketing | Marketing Solutions Offerings
Other Revenues [Line Items]
Revenue from contracts with customers	128,094
Direct Marketing | Goods Transferred Over Time
Other Revenues [Line Items]
Revenue from contracts with customers	128,094
e-Business
Other Revenues [Line Items]
Revenue from contracts with customers	5,822
Total revenue	5,822
e-Business | Supply Chain Management Services
Other Revenues [Line Items]
Revenue from contracts with customers	5,409
e-Business | Other
Other Revenues [Line Items]
Revenue from contracts with customers	413
e-Business | Services Transferred Over Time
Other Revenues [Line Items]
Revenue from contracts with customers	5,822
Americas
Other Revenues [Line Items]
Revenue from contracts with customers	17,440
Total revenue	17,440
Americas | Supply Chain Management Services
Other Revenues [Line Items]
Revenue from contracts with customers	17,440
Americas | Services Transferred Over Time
Other Revenues [Line Items]
Revenue from contracts with customers	17,440
Asia
Other Revenues [Line Items]
Revenue from contracts with customers	44,256
Total revenue	44,256
Asia | Supply Chain Management Services
Other Revenues [Line Items]
Revenue from contracts with customers	44,256
Asia | Services Transferred Over Time
Other Revenues [Line Items]
Revenue from contracts with customers	44,256
Europe
Other Revenues [Line Items]
Revenue from contracts with customers	19,521
Total revenue	19,521
Europe | Supply Chain Management Services
Other Revenues [Line Items]
Revenue from contracts with customers	19,521
Europe | Services Transferred Over Time
Other Revenues [Line Items]
Revenue from contracts with customers	$ 19,521