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NET INCOME PER SHARE (Details) - USD ($)
$ / shares in Units, shares in Thousands, $ in Thousands
 3 Months Ended 9 Months Ended
Sep. 25, 2022
Sep. 26, 2021
Sep. 25, 2022
Sep. 26, 2021
Earnings Per Share [Abstract]        
Net income $ 20,696 $ 18,642 $ 55,228 $ 41,424
Weighted average number of common shares used in basic net income per common share (in shares) 32,434 34,873 33,023 34,788
Dilutive effect of non-vested stock-based awards (in shares) 384 602 488 467
Weighted average number of common shares used in diluted net income per common share 32,818 35,475 33,511 35,255
Net income per common share:        
Basic (in dollars per share) $ 0.64 $ 0.53 $ 1.67 $ 1.19
Diluted (in dollars per share) $ 0.63 $ 0.53 $ 1.65 $ 1.17
Anti-dilutive shares (in shares) 485 24 439 47