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FAIR VALUE MEASUREMENTS (Details) - USD ($)
$ in Thousands
Jun. 24, 2016
Jun. 09, 2016
Jan. 23, 2015
Jul. 29, 2017
Jul. 30, 2016
Derivatives          
Interest Rate Derivative Assets, at Fair Value       $ 2,491  
Interest Rate Derivative Liabilities, at Fair Value       $ (308) $ (5,917)
June 9, 2019          
Derivatives          
Derivative, Maturity Date   Jun. 09, 2019      
Derivative, Forward Interest Rate   0.8725%      
Derivative, Notional Amount   $ 50,000      
June 24, 2019          
Derivatives          
Derivative, Maturity Date Jun. 24, 2019        
Derivative, Forward Interest Rate 0.7265%        
Derivative, Notional Amount $ 50,000        
April 29, 2021          
Derivatives          
Derivative, Maturity Date   Apr. 29, 2021      
Derivative, Forward Interest Rate   1.065%      
Derivative, Notional Amount   $ 25,000      
April 29, 2021          
Derivatives          
Derivative, Maturity Date Apr. 29, 2021        
Derivative, Forward Interest Rate 0.926%        
Derivative, Notional Amount $ 25,000        
August 3, 2022          
Derivatives          
Derivative, Maturity Date     Aug. 03, 2022    
Derivative, Forward Interest Rate     1.795%    
Derivative, Notional Amount $ 122,500