COMMON STOCK (Details 5) (USD $) In Thousands, except Per Share data, unless otherwise specified	12 Months Ended
	Jul. 31, 2014
Shares
Outstanding at August 1, 2013 (in shares)	2,209
Granted (in shares)	503
Exercised (in shares)	(638)
Forfeited or Expired (in shares)	(52)
Outstanding at July 31, 2014 (in shares)	2,022
Expected to vest at July 31, 2014 (in shares)	1,315
Exercisable at July 31, 2014 (in shares)	678
Weighted- Average Exercise Price
Weighted-Average Exercise Price, Outstanding at August 1, 2013 (in dollars per share)	$ 49.31
Weighted-Average Exercise Price, Granted (in dollars per share)	$ 82.48
Weighted-Average Exercise Price, Exercised (in dollars per share)	$ 38.86
Weighted-Average Exercise Price, Forfeited or Expired (in dollars per share)	$ 62.26
Weighted-Average Exercise Price, Outstanding at July 31, 2014 (in dollars per share)	$ 60.53
Weighted-Average Exercise Price, Expected to vest at July 31, 2014 (in dollars per share)	$ 65.80
Weighted-Average Exercise Price, Exercisable at July 31, 2014 (in dollars per share)	$ 49.59
Share-based Compensation Arrangement by Share-based Payment Award, Options, Additional Disclosures [Abstract]
Weighted-Average Remaining Contractual Term, Outstanding ending balance (in years)	4 years 10 months 25 days
Weighted-Average Remaining Contractual Term, Expected to vest at July 31, 2014 (in years)	5 years 4 months 25 days
Weighted-Average Remaining Contractual Term, Exercisable at July 31, 2014 (in years)	4 years 1 month 6 days
Aggregate Intrinsic Value, Outstanding at July 31, 2014	$ 36,760
Aggregate Intrinsic Value, Expected to vest at July 31, 2014	17,720
Aggregate Intrinsic Value, Exercisable at July 31, 2014	$ 18,911