CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jan. 31, 2014	Jan. 31, 2013	Jan. 31, 2014	Jan. 31, 2013
CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME
Net earnings	$ 50,786	$ 41,208	$ 23,480	$ 12,944
Foreign currency translation adjustment	(12,763)	(44)	(15,996)	470
Unrealized loss on interest rate swaps	(140)		(2,676)
Reclassification of loss on interest rate swaps to interest expense	65		85
Unrealized gain on securities, net	(128)	76	(54)	21
Comprehensive income	$ 37,820	$ 41,240	$ 4,839	$ 13,435