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NET INCOME PER SHARE (Details) - USD ($)
$ / shares in Units, shares in Thousands, $ in Thousands
 3 Months Ended 12 Months Ended
Jan. 01, 2017
Sep. 23, 2016
Jun. 24, 2016
Mar. 25, 2016
Dec. 25, 2015
Sep. 25, 2015
Jun. 26, 2015
Mar. 27, 2015
Jan. 01, 2017
Dec. 25, 2015
Dec. 26, 2014
Earnings Per Share [Abstract]                      
Net income (loss) $ 18,087 $ 23,429 $ (63,735) $ 6,968 $ 28,168 $ 20,090 $ 17,273 $ 5,716 $ (15,251) $ 71,247 $ 65,675
Weighted average number of common shares used in basic net income (loss) per common share                 41,648 41,226 40,734
Dilutive effect of non-vested restricted stock                 0 396 442
Weighted average number of common shares used in diluted net income (loss) per common share                 41,648 41,622 41,176
Net income (loss) per common share:                      
Basic (in dollars per share) $ 0.43 $ 0.56 $ (1.53) $ 0.17 $ 0.68 $ 0.49 $ 0.42 $ 0.14 $ (0.37) $ 1.73 $ 1.61
Diluted (in dollars per share) $ 0.43 $ 0.56 $ (1.53) $ 0.17 $ 0.67 $ 0.48 $ 0.42 $ 0.14 $ (0.37) $ 1.71 $ 1.59
Anti-dilutive shares                 0 89 58