FINANCIAL INSTRUMENTS AND RISKS & UNCERTAINTIES (Details 3) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Jul. 31, 2012		Jul. 31, 2011
Nonderivatives designated as hedging relationships
Amount of Gain/(Loss) Recognized in OCI on Derivatives (Effective Portion)	$ 432		$ (7,448)
Amount of Gain or (Loss) Reclassified from Accumulated OCI into Earnings (Effective Portion)	$ 0	[1]	$ 0	[1]

[1] There were no gains or losses recognized in earnings related to the ineffective portion of the hedging relationship or related to the amount excluded from the assessment of hedge effectiveness for the years ended July 31, 2012 and July 31, 2011.