Condensed Consolidated Statements Of Comprehensive Income (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Oct. 31, 2012	Oct. 31, 2011
Net income	$ 4,381	$ 4,026
Other comprehensive income, net of taxes:
Foreign currency translation adjustment, net of a tax benefit of $0 for the three months ended October 31, 2012 and 2011, respectively	3,203	(2,310)
Unrealized losses on foreign currency forward contracts, net of a tax benefit of $24 for the three months ended October 31, 2012	(47)
Total comprehensive income	$ 7,537	$ 1,716