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Basic and Diluted Net Income Per Share - Summary of Computation of Basic and Diluted Net Income Per Share (Details) - USD ($)
$ / shares in Units, shares in Thousands, $ in Thousands
 3 Months Ended 6 Months Ended
Jul. 02, 2021
Jul. 03, 2020
Jul. 02, 2021
Jul. 03, 2020
Numerator:        
Net income (loss) $ 8,567 $ (1,172) $ 13,559 $ (1,306)
Weighted average common shares:        
Common shares outstanding 47,102 45,354 46,861 45,152
Less: Unvested restricted stock (3)   (3)  
Denominator for basic calculation 47,099 45,354 46,858 45,152
Weighted average effects of potentially diluted common stock:        
Diluted 49,491 45,354 49,373 45,152
Net income (loss) per share:        
Basic $ 0.18 $ (0.03) $ 0.29 $ (0.03)
Diluted $ 0.17 $ (0.03) $ 0.27 $ (0.03)
Employee Stock Options        
Weighted average effects of potentially diluted common stock:        
Diluted 2,283   2,405  
Unvested Restricted Stock        
Weighted average effects of potentially diluted common stock:        
Diluted 9   9  
RSUs        
Weighted average effects of potentially diluted common stock:        
Diluted 88   90  
Performance Stock Units        
Weighted average effects of potentially diluted common stock:        
Diluted 12   11