Condensed Consolidated Statements Of Comprehensive Income (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Apr. 30, 2013	Apr. 30, 2012	Apr. 30, 2013	Apr. 30, 2012
Net income	$ 5,224	$ 7,330	$ 19,414	$ 30,971
Other comprehensive (loss) income, net of tax:
Foreign currency translation adjustment	(1,377)	816	4,343	(4,275)
Unrealized gains (losses) on foreign currency forward contracts, net of tax (benefit) provision of ($38) and $14 for the three months ended April 30, 2013 and 2012, respectively, and ($48) and $23 for the nine months ended April 30, 2013 and 2012, respectively.	(70)	17	(87)	41
Total other comprehensive (loss) income, net of tax	(1,447)	833	4,256	(4,234)
Total other comprehensive income	$ 3,777	$ 8,163	$ 23,670	$ 26,737