INCOME TAXES - Summary of Positions for which Significant Change in Unrecognized Tax Benefit is Reasonably Possible (Details) - USD ($) $ in Thousands	12 Months Ended
	Aug. 01, 2020	Aug. 03, 2019	Jul. 28, 2018
Income Tax Disclosure [Abstract]
Unrecognized tax benefits at beginning of period	$ 40,142	$ 1,104	$ 478
Unrecognized tax benefits added during the period	5,950	0	626
Unrecognized tax benefits assumed in a business combination	0	49,566	0
Decreases in unrecognized tax benefits due to statute expiration	(1,595)	(10,528)	0
Decreases in unrecognized tax benefits due to settlements	(12,375)	0	0
Unrecognized tax benefits at end of period	$ 32,122	$ 40,142	$ 1,104