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Earnings Per Share Data - Additional Information (Detail) - shares
shares in Thousands
3 Months Ended 9 Months Ended
Sep. 26, 2020
Sep. 28, 2019
Sep. 26, 2020
Sep. 28, 2019
Earnings Per Share [Abstract]        
Anti-dilutive common stock equivalents excluded from the calculation of diluted EPS 5,358 1,687 3,589 1,793