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STOCK-BASED COMPENSATION (Details 2) - USD ($)
$ / shares in Units, shares in Thousands, $ in Thousands
3 Months Ended 6 Months Ended
Aug. 03, 2019
Aug. 04, 2018
Aug. 03, 2019
Aug. 04, 2018
Jul. 29, 2017
Stock-based compensation          
Share-based Payment Arrangement, Expense $ 3,514 $ 7,420 $ 11,273 $ 16,217  
Vesting period (in years)       1 year 3 years
Cost of Sales [Member]          
Stock-based compensation          
Share-based Payment Arrangement, Expense 900 1,000 1,900 $ 1,900  
Restricted Stock Units (RSUs) [Member]          
Stock-based compensation          
Share-based Payment Arrangement, Expense 5,595 3,533 9,745 7,346  
Performance Awards Member          
Stock-based compensation          
Share-based Payment Arrangement, Expense $ (2,081) $ 3,887 $ 1,528 $ 8,871  
Percentage of Target Shares paid out if final operating income below threshold (as a percent)       100.00%  
Unvested awards at the beginning of the period (in shares)     352    
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period     194    
Vested (in shares)     (349)    
Forfeited (in shares)     (9)    
Unvested awards at the end of the period (in shares) 369   369    
Weighted Average Grant Date Fair Value          
Unvested awards at the beginning of the period (in dollars per share)     $ 90.66    
Granted (in shares)     99.57    
Vested (in dollars per share)     75.83    
Forfeited (in dollars per share)     116.63    
Unvested awards at the end of the period (in dollars per share) $ 101.51   $ 101.51    
Unrecognized costs and period of recognition          
Unrecognized stock-based compensation expense (in dollars) $ 21,000   $ 21,000    
Weighted average period for recognition of unrecognized stock-based compensation expense (in years)     2 years 1 month 6 days