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Net Income Per Share - Computation of Basic Net Income Per Share and Diluted Net Income Per Share (Parenthetical) (Detail)
3 Months Ended 9 Months Ended
Oct. 02, 2016
Sep. 27, 2015
Oct. 02, 2016
Sep. 27, 2015
Earnings Per Share [Abstract]        
Percentage undistributed earnings allocated to common stock diluted 100.00% 100.00% 100.00% 100.00%