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Net Income Per Share - Computation of Basic Net Income Per Share and Diluted Net Income Per Share (Parenthetical) (Detail)
12 Months Ended
Jan. 03, 2016
Dec. 28, 2014
Dec. 29, 2013
Earnings Per Share [Abstract]      
Percentage undistributed earnings allocated to common stock diluted 100.00% 100.00% 100.00%