Total Assets of Continuing Operations (Detail) - USD ($) $ in Thousands	Jan. 31, 2017	Jul. 31, 2016
Segment Reporting Information [Line Items]
Total assets	$ 312,198	$ 347,932
Operating Segments
Segment Reporting Information [Line Items]
Total assets	195,030	216,358
Operating Segments | Americas
Segment Reporting Information [Line Items]
Total assets	29,289	28,280
Operating Segments | Asia
Segment Reporting Information [Line Items]
Total assets	75,079	89,242
Operating Segments | Europe
Segment Reporting Information [Line Items]
Total assets	71,996	75,952
Operating Segments | e-Business Services
Segment Reporting Information [Line Items]
Total assets	18,666	22,884
Corporate-level activity
Segment Reporting Information [Line Items]
Total assets	$ 117,168	$ 131,574