STOCK-BASED PAYMENT (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jan. 31, 2015	Jan. 31, 2014	Jan. 31, 2015	Jan. 31, 2014
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of Share-Based Employee and Director Compensation Plans	3		3
Allocated Share-based Compensation Expense	$ 8,766	$ 9,464	$ 20,282	$ 15,595
Restricted stock units [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Allocated Share-based Compensation Expense	5,100	6,254	13,323	10,447
Stock options [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Allocated Share-based Compensation Expense	1,949	1,965	3,903	3,486
Management Stock Purchase Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Allocated Share-based Compensation Expense	1,454	972	2,519	1,164
Employee Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Allocated Share-based Compensation Expense	$ 263	$ 273	$ 537	$ 498