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RELATED PARTY INFORMATION - WAKEFERN (Details) - USD ($)
$ in Thousands
3 Months Ended
Aug. 15, 2017
Feb. 15, 2014
Oct. 28, 2017
Oct. 29, 2016
Jul. 29, 2017
Related Party Transaction [Line Items]          
Proceeds from Sale, Maturity and Collection of Long-term Investments     $ 22,172 $ 0  
Due from Related Parties $ 22,000        
Investee [Member]          
Related Party Transaction [Line Items]          
Demand deposits at Wakefern     $ 53,789   $ 60,037
Related Party Note Receivable Maturing August 2017 [Member] | Investee [Member]          
Related Party Transaction [Line Items]          
Related Party Transaction, Basis Spread on Variable Rate   0.25%      
Related Party Notes Receivable Maturing August 2022 [Member] | Investee [Member]          
Related Party Transaction [Line Items]          
Related Party Transaction, Basis Spread on Variable Rate 1.25%