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EMPLOYEE BENEFIT PLANS - Additional Plan Assumptions (Details) - USD ($)
$ in Thousands
12 Months Ended
Jan. 30, 2016
Jan. 31, 2015
Postretirement Benefit Plan    
Employee benefit plans    
Effect of one-percentage point increase on total service and interest cost components $ 3  
Effect of one-percentage point decrease on total service and interest cost components (3)  
Effect of one-percentage point increase on postretirement benefit obligation 74  
Effect of one-percentage point decrease on postretirement benefit obligation $ (65)  
Pension Plans | Cash and cash equivalents    
Employee benefit plans    
Weighted average allocation (as a percent) 1.00% 2.00%
Pension Plans | Equity securities    
Employee benefit plans    
Target allocation (as a percent) 49.00%  
Weighted average allocation (as a percent) 47.00% 47.00%
Pension Plans | Debt Securities    
Employee benefit plans    
Target allocation (as a percent) 41.00%  
Weighted average allocation (as a percent) 42.00% 41.00%
Pension Plans | Hedge funds    
Employee benefit plans    
Target allocation (as a percent) 10.00%  
Weighted average allocation (as a percent) 10.00% 10.00%