Summarized Financial Information of Continuing Operations by Operating Segment and Corporate-Level Activity (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jan. 31, 2017	Jan. 31, 2016	Jan. 31, 2017	Jan. 31, 2016
Segment Reporting Information [Line Items]
Net revenue	$ 117,568	$ 119,966	$ 238,895	$ 261,055
Operating income (loss)	(1,504)	(11,663)	(7,146)	(13,232)
Total other expense	1,075	2,338	3,427	14,692
Loss before income taxes	(2,579)	(14,001)	(10,573)	(27,924)
Operating Segments
Segment Reporting Information [Line Items]
Operating income (loss)	(257)	(9,872)	(4,583)	(9,884)
Operating Segments | Americas
Segment Reporting Information [Line Items]
Net revenue	27,183	28,208	53,061	61,419
Operating income (loss)	(1,721)	(4,911)	(5,577)	(7,997)
Operating Segments | Asia
Segment Reporting Information [Line Items]
Net revenue	38,861	44,476	81,734	98,407
Operating income (loss)	2,311	(325)	4,088	3,046
Operating Segments | Europe
Segment Reporting Information [Line Items]
Net revenue	44,910	38,656	90,091	83,399
Operating income (loss)	41	(4,239)	(2,550)	(4,032)
Operating Segments | e-Business Services
Segment Reporting Information [Line Items]
Net revenue	6,614	8,626	14,009	17,830
Operating income (loss)	(888)	(397)	(544)	(901)
Corporate-level activity
Segment Reporting Information [Line Items]
Operating income (loss)	$ (1,247)	$ (1,791)	$ (2,563)	$ (3,348)