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NET INCOME (LOSS) PER SHARE (Details) - USD ($)
$ / shares in Units, shares in Thousands, $ in Thousands
 3 Months Ended 6 Months Ended
Jun. 27, 2021
Jun. 28, 2020
Jun. 27, 2021
Jun. 28, 2020
Earnings Per Share [Abstract]        
Net income (loss) $ 15,884 $ (8,168) $ 22,782 $ (158,662)
Weighted average number of common shares used in basic net income (loss) per common share 34,818 35,077 34,746 36,166
Dilutive effect of non-vested restricted stock 534 0 459 0
Weighted average number of common shares used in diluted net income (loss) per common share 35,352 35,077 35,205 36,166
Net income (loss) per common share:        
Basic (in dollars per share) $ 0.46 $ (0.23) $ 0.66 $ (4.39)
Diluted (in dollars per share) $ 0.45 $ (0.23) $ 0.65 $ (4.39)
Anti-dilutive shares 26 580 54 565