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Earnings Per Share - Additional Information (Detail) - shares
shares in Thousands
3 Months Ended 6 Months Ended
Jun. 29, 2019
Jun. 30, 2018
Jun. 29, 2019
Jun. 30, 2018
Earnings Per Share [Abstract]        
Anti-dilutive common stock equivalents excluded from the calculation of diluted earnings per share 2,032 32 1,975 399