NET INCOME (LOSS) PER SHARE (Details) In Thousands, unless otherwise specified	3 Months Ended
	Oct. 25, 2014 class_common_stock
Earnings Per Share [Abstract]
Number of common stock classes	2
Common stock cash dividends, percent Class A is entitled greater than Class B	54.00%
Conversion ratio of common Class A to common Class B (in shares)	1
Common Class A [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Class A shares excluded from computation of earnings per share	545
Restricted Stock Units (RSUs) [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Class A shares excluded from computation of earnings per share	290