Summarized Financial Information of Net Revenue from External Customers by Group of Services (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Apr. 30, 2016	Apr. 30, 2015	Apr. 30, 2016	Apr. 30, 2015
Segment Reporting, Revenue Reconciling Item [Line Items]
Net revenue	$ 96,460	$ 106,234	$ 357,515	$ 441,988
Supply Chain Services
Segment Reporting, Revenue Reconciling Item [Line Items]
Net revenue	89,110	98,534	332,335	417,063
e-Business Services
Segment Reporting, Revenue Reconciling Item [Line Items]
Net revenue	$ 7,350	$ 7,700	$ 25,180	$ 24,925