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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. 30, 2021
Jun. 24, 2020
Jun. 30, 2021
Jun. 24, 2020
Earnings Per Share [Abstract]        
Net income (loss) $ (828) $ (22,965) $ 22,353 $ (13,952)
Weighted average shares outstanding - basic (in shares) 65,294 55,686 65,273 55,993
Effect of dilutive share-based compensation awards (in shares) 0 0 516 0
Weighted average shares outstanding - diluted (in shares) 65,294 55,686 65,789 55,993
Basic net income (loss) per share (in dollars per share) $ (0.01) $ (0.41) $ 0.34 $ (0.25)
Diluted net income (loss) per share (in dollars per share) $ (0.01) $ (0.41) $ 0.34 $ (0.25)
Anti-dilutive share-based compensation awards (in shares) 998 3,493 483 3,493