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NET INCOME (LOSS) PER COMMON SHARE (Details) - USD ($)
shares in Thousands, $ in Thousands
 3 Months Ended 9 Months Ended
Oct. 31, 2015
Nov. 01, 2014
Oct. 31, 2015
Nov. 01, 2014
Basic and diluted net income per common share        
Net income $ 38,495 $ 36,942 $ 40,411 $ 39,851
Basic weighted average common shares (in shares) 20,297 21,541 20,628 21,843
Dilutive effect of stock awards (in shares) 220 215 250 219
Diluted weighted average common shares (in shares) 20,517 21,756 20,878 22,062
Antidilutive stock awards (in shares) 1 2 1 1