Summarized Financial Information of Continuing Operations by Operating Segment and Corporate-Level Activity (Detail) - USD ($) $ in Thousands	3 Months Ended
	Oct. 31, 2018	Oct. 31, 2017
Segment Reporting Information [Line Items]
Revenues	$ 215,133	$ 102,522
Operating income (loss)	3,536	(3,830)
Total other income (expense)	(9,790)	(521)
Loss before income taxes	(6,254)	(4,351)
Direct Marketing
Segment Reporting Information [Line Items]
Revenues	128,094
e-Business
Segment Reporting Information [Line Items]
Revenues	5,822
Operating Segments
Segment Reporting Information [Line Items]
Operating income (loss)	6,449	(2,335)
Operating Segments | Americas
Segment Reporting Information [Line Items]
Revenues	17,440	14,839
Operating income (loss)	(826)	(2,199)
Operating Segments | Asia
Segment Reporting Information [Line Items]
Revenues	44,256	43,512
Operating income (loss)	5,128	4,169
Operating Segments | Europe
Segment Reporting Information [Line Items]
Revenues	19,521	38,390
Operating income (loss)	(1,472)	(2,860)
Operating Segments | Direct Marketing
Segment Reporting Information [Line Items]
Revenues	128,094
Operating income (loss)	4,767
Operating Segments | e-Business
Segment Reporting Information [Line Items]
Revenues	5,822	5,781
Operating income (loss)	(1,148)	(1,445)
Corporate-level activity
Segment Reporting Information [Line Items]
Operating income (loss)	$ (2,913)	$ (1,495)