INCOME TAXES (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Oct. 25, 2014	Oct. 26, 2013	Jul. 26, 2014	Jul. 27, 2013
Income Tax Contingency [Line Items]
Prior year increase in unrecognized tax benefits	$ 0	$ 7,589
Possible result in reduction in gross unrecognized tax benefits	29,756	25,880	28,993	17,640
Interest and penalties on income taxes	694	8,387
Accrued interest and penalties	16,801		16,107
Income Tax Expense on Prior Year Tax Positions [Member]
Income Tax Contingency [Line Items]
Charge to income tax expense		10,052
Net [Member]
Income Tax Contingency [Line Items]
Prior year increase in unrecognized tax benefits		4,933
Income tax expense related to interest and penalties for prior year		5,119
Unrecognized tax benefits that would affect income tax rate	18,472		18,100
Federal Benefit [Member]
Income Tax Contingency [Line Items]
Prior year increase in unrecognized tax benefits		2,656
Income tax expense related to interest and penalties for prior year		$ 2,078