TREASURY STOCK (Detail Textuals) (USD $) In Thousands, except Per Share data, unless otherwise specified	6 Months Ended
	Jan. 31, 2014
Accelerated Share Repurchases [Line Items]
Stock Repurchase Program, Amount Utilized	$ 250,000
Shares issued for stock plans	694
Treasury stock, shares	18,298
September 2013 Accelerated Share Repurchase [Member]
Accelerated Share Repurchases [Line Items]
Stock Repurchase Program, Amount Utilized	125,000
Total number of shares repurchased (in shares)	1,573
Accelerated Share Repurchases, Final Price Paid Per Share	$ 79.45
December 2013 Accelerated Share Repurchase [Member]
Accelerated Share Repurchases [Line Items]
Stock Repurchase Program, Amount Utilized	125,000
Total number of shares repurchased (in shares)	1,249
Aggregate cost of shares repurchased in the period	106,250
Accelerated Share Repurchases, Initial Price Paid Per Share	$ 85.05
ASR Amount Included in Additional Paid in Capital to be Reclassified to Treasury Stock	$ 18,750