DERIVATIVE INSTRUMENTS AND HEDGING ACTIVITIES (Details 1) (Designated as Hedging Instrument [Member], Foreign Exchange Contract [Member], Cash Flow Hedging [Member], USD $) In Thousands, unless otherwise specified	3 Months Ended				6 Months Ended
	Jan. 31, 2015		Jan. 31, 2014		Jan. 31, 2015		Jan. 31, 2014
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gain or (Loss) Reclassified from Accumulated OCI into Earnings (Effective Portion)	$ 1,407	[1]	$ 67	[1]	$ 3,058	[1]	$ (754)	[1]
Sales [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gain or (Loss) Reclassified from Accumulated OCI into Earnings (Effective Portion)	560	[1]	113	[1]	1,120	[1]	112	[1]
Cost of Sales [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gain or (Loss) Reclassified from Accumulated OCI into Earnings (Effective Portion)	847	[1]	(46)	[1]	1,938	[1]	(866)	[1]
Other Comprehensive Income (Loss) [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gain or (Loss) Recognized in OCI on Derivatives (Effective Portion)	$ 3,806		$ 3,489		$ 4,397		$ 5,310

[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 three and six months ended January 31, 2015 and January 31, 2014.