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Net Income Per Share - Computation of Basic Net Income Per Share and Diluted Net Income Per Share, Textual (Detail) - shares
3 Months Ended 9 Months Ended
Oct. 01, 2021
Sep. 27, 2020
Oct. 01, 2021
Sep. 27, 2020
Earnings Per Share [Abstract]        
Percentage undistributed earnings allocated to common stock diluted 100.00% 100.00% 100.00% 100.00%
Anti-dilutive shares 0 0 0 0