BASIS OF PRESENTATION and ACCOUNTING POLICIES - Disaggregated Revenues (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jan. 28, 2023	Jan. 29, 2022	Jan. 28, 2023	Jan. 29, 2022
Revenue from External Customer [Line Items]
Sales	$ 563,866	$ 537,408	$ 1,083,555	$ 1,031,619
Percentage of total sales	100.00%	100.00%	100.00%	100.00%
Center Store
Revenue from External Customer [Line Items]
Sales	$ 343,818	$ 324,362	$ 655,642	$ 620,336
Percentage of total sales	61.00%	60.30%	60.60%	60.10%
Fresh
Revenue from External Customer [Line Items]
Sales	$ 200,503	$ 194,329	$ 389,511	$ 374,152
Percentage of total sales	35.60%	36.20%	35.90%	36.30%
Pharmacy
Revenue from External Customer [Line Items]
Sales	$ 17,621	$ 16,756	$ 34,790	$ 33,604
Percentage of total sales	3.10%	3.10%	3.20%	3.30%
Other
Revenue from External Customer [Line Items]
Sales	$ 1,924	$ 1,961	$ 3,612	$ 3,527
Percentage of total sales	0.30%	0.40%	0.30%	0.30%