CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Apr. 30, 2015	Apr. 30, 2014	Apr. 30, 2015	Apr. 30, 2014
CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME
Net income	$ 12,356	$ 10,249	$ 34,680	$ 32,560
Other comprehensive (loss) income:
Foreign currency translation, net of tax	1,146	163	(6,354)	(1,511)
Reclassification adjustment to loss on sale of business for foreign currency translation gain included in net income during the period	(1,264)		(1,264)
Unrealized holding losses on interest rate swaps arising during the period, net of tax				(30)
Reclassification adjustments to interest expense for losses on interest rate swap included in net income during the period, net of tax				60
Reclassification adjustment to interest expense for ineffective hedge on interest rate swap included in net income during the period, net of tax				73
Total other comprehensive (loss) income, net of tax	(118)	163	(7,618)	(1,408)
Comprehensive income	$ 12,238	$ 10,412	$ 27,062	$ 31,152