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Income Taxes (Net Current And Non-Current Components Of Deferred Income Taxes) (Details) (USD $) In Thousands, unless otherwise specified	Jul. 31, 2014	Jul. 31, 2013
Income Tax Disclosure [Abstract]
Net current deferred income tax asset	$ 29,249	$ 25,190
Net non-current deferred income tax asset	0	0
Net non-current deferred income tax liability	128,562	118,259
Net deferred income tax liability	$ 99,313	$ 93,069

Amount after allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences and carryforwards expected to be realized or consumed within one year or operating cycle, if longer.

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