FINANCIAL INSTRUMENTS AND RISKS & UNCERTAINTIES (Details 2) (Not Designated as Hedging Instrument [Member], Foreign Exchange Forward [Member], Selling, General and Administrative Expenses [Member], USD $) In Thousands, unless otherwise specified	12 Months Ended
	Jul. 31, 2013	Jul. 31, 2012
Not Designated as Hedging Instrument [Member] | Foreign Exchange Forward [Member] | Selling, General and Administrative Expenses [Member]
Derivatives not designated as hedging instruments
Amount of Gain/(Loss) Recognized in Earnings on Derivatives	$ (15,897)	$ 12,545