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
Net income	$ 9,124us-gaap_NetIncomeLoss	$ 7,790us-gaap_NetIncomeLoss	$ 22,608us-gaap_NetIncomeLoss	$ 23,329us-gaap_NetIncomeLoss
Other comprehensive (loss) income, net of tax:
Foreign currency translation adjustment, net of tax	(600)	689	(10,974)	1,495
Unrealized gains (losses) on foreign currency forward contracts, net of tax	339	31	(95)	132
Total other comprehensive (loss) income, net of tax	(261)	720	(11,069)	1,627
Total comprehensive income	$ 8,863us-gaap_ComprehensiveIncomeNetOfTax	$ 8,510us-gaap_ComprehensiveIncomeNetOfTax	$ 11,539us-gaap_ComprehensiveIncomeNetOfTax	$ 24,956us-gaap_ComprehensiveIncomeNetOfTax

Amount after tax of increase (decrease) in equity from transactions and other events and circumstances from net income and other comprehensive income, attributable to parent entity. Excludes changes in equity resulting from investments by owners and distributions to owners.

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Amount after tax of increase (decrease) in accumulated gain (loss) from derivative instruments designated and qualifying as the effective portion of cash flow hedges and an entity's share of an equity investee's increase (decrease) in deferred hedging gain (loss).

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