CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE LOSS (USD $) In Thousands, unless otherwise specified	3 Months Ended			6 Months Ended
	Jan. 31, 2013	Jan. 31, 2012		Jan. 31, 2013	Jan. 31, 2012
Net loss	$ (12,550)	$ (12,876)	[1]	$ (23,208)	$ (11,731)	[1]
Other comprehensive income (loss):
Foreign currency translation adjustment	1,757	(4,435)	[1]	5,016	(7,362)	[1]
Net unrealized holding gain (loss) on securities		(1)	[1]	(1)	1	[1]
Total adjustments	1,757	(4,436)	[1]	5,015	(7,361)	[1]
Comprehensive loss	$ (10,793)	$ (17,312)	[1]	$ (18,193)	$ (19,092)	[1]

[1] As Restated