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FINANCIAL INSTRUMENTS AND RISKS AND UNCERTAINTIES (Details 3) (USD $) In Thousands	12 Months Ended
	Jul. 31, 2011	Jul. 31, 2010
Nonderivatives designated as hedging relationships
Net investment hedge	$ (7,448)	$ (5,789)
Net investment hedge	$ 0	$ 0

Current period adjustment in other comprehensive income reflecting gains or losses on foreign currency transactions that are designated as, and are effective as, hedges of a net investment in a foreign entity, net of tax effect.

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