CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended			9 Months Ended
	Apr. 30, 2012	Apr. 30, 2011		Apr. 30, 2012	Apr. 30, 2011
Net revenue	$ 178,565	$ 206,579	[1]	$ 562,797	$ 675,061	[1]
Cost of revenue	163,146	186,912	[1]	506,101	611,706	[1]
Gross profit	15,419	19,667	[1]	56,696	63,355	[1]
Operating expenses:
Selling, general and administrative	23,515	20,788	[1]	70,320	63,797	[1]
Amortization of intangible assets	331	1,062	[1]	995	4,420	[1]
Impairment of goodwill and long-lived assets	2,062			2,062	27,166	[1]
Restructuring, net	495			5,847	1,201	[1]
Total operating expenses	26,403	21,850	[1]	79,224	96,584	[1]
Operating loss	(10,984)	(2,183)	[1]	(22,528)	(33,229)	[1]
Other income:
Interest income	67	62	[1]	310	191	[1]
Interest expense	(90)	(110)	[1]	(278)	(357)	[1]
Other gains, net	6,875	5,532	[1]	8,930	9,607	[1]
Equity in losses of affiliates and impairments	(3,108)	(401)	[1]	(3,825)	(2,214)	[1]
Total other income	3,744	5,083	[1]	5,137	7,227	[1]
Income (loss) from continuing operations before income taxes	(7,240)	2,900	[1]	(17,391)	(26,002)	[1]
Income tax expense (benefit)	(1,202)	1,331	[1]	1,050	3,772	[1]
Income (loss) from continuing operations	(6,038)	1,569	[1]	(18,441)	(29,774)	[1]
Discontinued operations, net of income taxes:
Income (loss) from discontinued operations	(98)	(91)	[1]	572	(239)	[1]
Net income (loss)	$ (6,136)	$ 1,478	[1]	$ (17,869)	$ (30,013)	[1]
Basic and diluted earnings (loss) per share:
Income (loss) from continuing operations	$ (0.14)	$ 0.03	[1]	$ (0.42)	$ (0.68)	[1]
Income (loss) from discontinued operations				$ 0.01	$ (0.01)	[1]
Net income (loss)	$ (0.14)	$ 0.03	[1]	$ (0.41)	$ (0.69)	[1]
Shares used in computing basic earnings per share:	43,844	43,303	[1]	43,546	43,289	[1]
Shares used in computing diluted earnings per share:	43,844	43,502	[1]	43,546	43,289	[1]

[1] As Restated