NET INCOME (LOSS) PER SHARE - Additional Information (Details) shares in Thousands	3 Months Ended
	Oct. 27, 2018 class_common_stock shares	Oct. 28, 2017 shares
Earnings Per Share [Abstract]
Number of common stock classes | class_common_stock	2
Common stock cash dividends, percent Class A is entitled greater than Class B	54.00%
Conversion of stock, conversion ratio	1
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	340	369
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	278	380