RELATED PARTY INFORMATION - WAKEFERN (Details) - USD ($) $ in Thousands	12 Months Ended
	Jul. 30, 2022	Jul. 31, 2021
Related Party Transaction [Line Items]
Related party transaction amount	$ 1,134	$ 632
Wakefern
Related Party Transaction [Line Items]
Ownership interest in Wakefern	12.50%
Purchase obligation, as a percentage of merchandise requirements	85.00%
Purchase obligation period	10 years
Percentage of stockholders to request termination	75.00%
Indebtedness to Wakefern	$ 3,095
Vendor allowances and rebates	39,038	43,003
Support services incurred charges	47,877	47,462
Demand deposits invested at related party Wakefern	110,739	86,670
Interest income earned on investments related entity	3,953	3,522
Wakefern | Related Party Note Receivable Maturing August 2022
Related Party Transaction [Line Items]
Notes receivable from Wakefern	$ 28,627
Basis spread on variable rate (as a percent)	1.25%
Wakefern | Related Party Note Receivable Maturing February 2024
Related Party Transaction [Line Items]
Notes receivable from Wakefern	$ 29,157
Basis spread on variable rate (as a percent)	0.75%
Wakefern | Related Party Note Receivable Maturing August 2027
Related Party Transaction [Line Items]
Basis spread on variable rate (as a percent)	0.50%
Proceeds from collection of notes receivable	$ 28,850
Wakefern | Related Party Note Receivable Maturing September 2027
Related Party Transaction [Line Items]
Proceeds from collection of notes receivable	$ 30,000
Wakefern | Insure-Rite Ltd.
Related Party Transaction [Line Items]
Investment in Insure-Rite, Ltd	9.40%
Stock Subscriptions Outstanding, Payments Due In 2023
Related Party Transaction [Line Items]
Related party transaction amount	$ 522
Stock Subscriptions Outstanding, Payments Due In 2024
Related Party Transaction [Line Items]
Related party transaction amount	512
Stock Subscriptions Outstanding, Payments Due In 2025
Related Party Transaction [Line Items]
Related party transaction amount	511
Stock Subscriptions Outstanding, Payments Due In 2026
Related Party Transaction [Line Items]
Related party transaction amount	372
Stock Subscriptions Outstanding, Payments Due After 2026
Related Party Transaction [Line Items]
Related party transaction amount	$ 44
Per Store Investment, Maximum | Wakefern
Related Party Transaction [Line Items]
Related party transaction amount		$ 975