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Earnings Per Share - Schedule of Computation of Basic and Diluted Earnings Per Share (Detail) - USD ($)
$ / shares in Units, shares in Thousands, $ in Thousands
 3 Months Ended 4 Months Ended 9 Months Ended
Oct. 09, 2021
Jul. 17, 2021
Oct. 03, 2020
Jul. 11, 2020
Apr. 24, 2021
Apr. 18, 2020
Oct. 09, 2021
Oct. 03, 2020
Numerator:                
Net earnings $ 15,176 $ 16,814 $ 19,952 $ 28,467 $ 19,516 $ 15,402 $ 51,506 $ 63,821
Adjustment for earnings attributable to participating securities (264)   (494)       (999) (1,577)
Net earnings used in calculating earnings per share $ 14,912   $ 19,458       $ 50,507 $ 62,244
Denominator:                
Weighted average shares outstanding, including participating securities 35,525   35,730       35,671 35,900
Adjustment for participating securities (618)   (884)       (692) (887)
Shares used in calculating basic earnings per share 34,907   34,846       34,979 35,013
Shares used in calculating diluted earnings per share 35,198   34,847       35,179 35,013
Basic net earnings per share: $ 0.43   $ 0.56       $ 1.44 $ 1.78
Diluted net earnings per share: $ 0.42   $ 0.56       $ 1.44 $ 1.78
Stock Warrant [Member]                
Denominator:                
Effect of dilutive restricted stock awards 197           146  
Restricted Stock Awards [Member]                
Denominator:                
Effect of dilutive restricted stock awards 94   1       54