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Earnings Per Share - Additional Information (Detail) - shares
shares in Thousands
3 Months Ended 6 Months Ended
Jul. 01, 2017
Jul. 02, 2016
Jul. 01, 2017
Jul. 02, 2016
Earnings Per Share [Abstract]        
Anti-dilutive common stock equivalents excluded from the calculation of diluted earnings per share 868 1,265 956 1,205