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NET INCOME (LOSS) PER SHARE (Details) - USD ($)
$ / shares in Units, shares in Thousands, $ in Thousands
 3 Months Ended 9 Months Ended
Oct. 01, 2017
Sep. 23, 2016
Oct. 01, 2017
Sep. 23, 2016
Earnings Per Share [Abstract]        
Net income (loss) $ 21,221 $ 23,429 $ 39,029 $ (33,338)
Weighted average number of common shares used in basic net income (loss) per common share 41,046 41,762 41,420 41,651
Dilutive effect of non-vested restricted stock 230 294 251 0
Weighted average number of common shares used in diluted net income (loss) per common share 41,276 42,056 41,671 41,651
Net income (loss) per common share:        
Basic (in dollars per share) $ 0.52 $ 0.56 $ 0.94 $ (0.80)
Diluted (in dollars per share) $ 0.51 $ 0.56 $ 0.94 $ (0.80)
Anti-dilutive shares 354 302 388 521