BASIS OF PRESENTATION and ACCOUNTING POLICIES - Disaggregated Revenues (Details) - USD ($) $ in Thousands	3 Months Ended
	Oct. 29, 2022	Oct. 30, 2021
Revenue from External Customer [Line Items]
Sales	$ 519,689	$ 494,211
Percentage of total sales	100.00%	100.00%
Center Store
Revenue from External Customer [Line Items]
Sales	$ 311,824	$ 295,974
Percentage of total sales	60.00%	59.90%
Fresh
Revenue from External Customer [Line Items]
Sales	$ 189,008	$ 179,823
Percentage of total sales	36.40%	36.40%
Pharmacy
Revenue from External Customer [Line Items]
Sales	$ 17,169	$ 16,848
Percentage of total sales	3.30%	3.40%
Other
Revenue from External Customer [Line Items]
Sales	$ 1,688	$ 1,566
Percentage of total sales	0.30%	0.30%