Summarized Financial Information of Continuing Operations by Operating Segment and Corporate-Level Activity (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended			6 Months Ended
	Jan. 31, 2013	Jan. 31, 2012		Jan. 31, 2013	Jan. 31, 2012
Segment Reporting Information [Line Items]
Net revenue	$ 203,436	$ 169,435	[1]	$ 400,487	$ 367,265	[1]
Operating income (loss)	(8,526)	(12,520)	[1]	(15,797)	(8,937)	[1]
Adjusted operating income	285	(5,827)	[1]	2,000	2,513	[1]
Adjustments:
Depreciation	(3,240)	(3,511)	[1]	(6,849)	(7,224)	[1]
Amortization of intangible assets	(285)	(285)	[1]	(569)	(569)	[1]
Share-based compensation	(422)	(998)	[1]	(915)	(1,880)	[1]
Restructuring, net	(4,798)	(4,463)	[1]	(6,268)	(5,219)	[1]
Other income (expense), net	(3,217)	559	[1]	(4,868)	1,390	[1]
Income tax expense	(674)	(380)	[1]	(1,583)	(2,251)	[1]
Loss from discontinued operations	(133)	(535)	[1]	(960)	(1,933)	[1]
Net loss	(12,550)	(12,876)	[1]	(23,208)	(11,731)	[1]
Adjusted
Segment Reporting Information [Line Items]
Operating income (loss)	219	(3,263)	[1]	(1,196)	5,955	[1]
Adjusted operating income	8,746	2,707	[1]	16,016	16,045	[1]
Americas
Segment Reporting Information [Line Items]
Net revenue	67,731	59,498	[1]	131,641	129,009	[1]
Operating income (loss)	(445)	(3,084)	[1]	(2,470)	(3,204)	[1]
Americas | Adjusted
Segment Reporting Information [Line Items]
Adjusted operating income	1,673	(1,272)	[1]	1,073	54	[1]
Asia
Segment Reporting Information [Line Items]
Net revenue	60,356	51,124	[1]	116,731	111,863	[1]
Operating income (loss)	5,586	4,513	[1]	12,756	13,805	[1]
Asia | Adjusted
Segment Reporting Information [Line Items]
Adjusted operating income	7,982	5,795	[1]	17,004	16,760	[1]
Europe
Segment Reporting Information [Line Items]
Net revenue	67,818	50,710	[1]	136,748	108,316	[1]
Operating income (loss)	(3,902)	(7,177)	[1]	(7,750)	(8,865)	[1]
Europe | Adjusted
Segment Reporting Information [Line Items]
Adjusted operating income	(1,198)	(2,225)	[1]	(3,206)	(2,521)	[1]
All Others
Segment Reporting Information [Line Items]
Net revenue	7,531	8,103	[1]	15,367	18,077	[1]
Operating income (loss)	(954)	(79)	[1]	(536)	777	[1]
All Others | Adjusted
Segment Reporting Information [Line Items]
Adjusted operating income	289	409	[1]	1,145	1,752	[1]
Corporate-Level Activity
Segment Reporting Information [Line Items]
Operating income (loss)	(8,811)	(6,693)	[1]	(17,797)	(11,450)	[1]
Corporate-Level Activity | Adjusted
Segment Reporting Information [Line Items]
Operating income (loss)	$ (8,527)	$ (5,970)	[1]	$ (17,212)	$ (10,090)	[1]

[1] As Restated