CONSOLIDATED STATEMENTS OF INCOME (LOSS) - USD ($) $ in Thousands	12 Months Ended
	Jul. 31, 2020	Aug. 02, 2019	Aug. 03, 2018
CONDENSED CONSOLIDATED STATEMENTS OF INCOME (LOSS) [Abstract]
Total revenue	$ 2,522,792	$ 3,071,951	$ 3,030,445
Cost of goods sold (exclusive of depreciation and rent)	779,937	931,077	935,397
Labor and other related expenses	924,994	1,078,751	1,055,811
Other store operating expenses	614,733	626,453	601,889
General and administrative expenses	146,975	152,826	143,756
Gain on sale and leaseback transaction	(69,954)	0	0
Impairment	22,496	0	0
Operating income	103,611	282,844	293,592
Interest expense	22,327	16,488	15,169
Income before income taxes	81,284	266,356	278,423
Provision for income taxes (income tax benefit)	(28,683)	42,955	30,803
Loss from unconsolidated subsidiary	(142,442)	0	0
Net income (loss)	$ (32,475)	$ 223,401	$ 247,620
Net income (loss) per share - basic (in dollars per share)	$ (1.36)	$ 9.29	$ 10.31
Net income (loss) per share - diluted (in dollars per share)	$ (1.36)	$ 9.27	$ 10.29
Basic weighted average shares outstanding (in shares)	23,865,367	24,037,272	24,011,161
Diluted weighted average shares outstanding (in shares)	23,865,367	24,096,396	24,075,614