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Net Loss Per Share - Numerators and Denominators of Basic and Diluted Net Income (Loss) Per Share Computations (Detail) - USD ($)
$ / shares in Units, shares in Thousands, $ in Thousands
3 Months Ended
Mar. 27, 2020
Mar. 29, 2019
Numerator:    
Net loss $ (21,954) $ (11,306)
Denominator:    
Basic and diluted 95,575 88,165
Net loss per share:    
Basic and diluted $ (0.23) $ (0.13)