Earnings Per Share - Schedule of Computation of Basic and Diluted Earnings Per Share (Detail) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	4 Months Ended
	Apr. 23, 2022	Apr. 24, 2021
Numerator:
Net earnings	$ 19,289	$ 19,516
Adjustment for earnings attributable to participating securities	(273)	(426)
Net earnings used in calculating earnings per share	$ 19,016	$ 19,090
Denominator:
Weighted average shares outstanding, including participating securities	35,566	35,765
Adjustment for participating securities	(504)	(781)
Shares used in calculating basic earnings per share	35,062	34,984
Shares used in calculating diluted earnings per share	35,878	35,095
Basic net earnings per share:	$ 0.54	$ 0.55
Diluted net earnings per share:	$ 0.53	$ 0.54
Stock Warrant [Member]
Denominator:
Effect of dilutive restricted stock awards	648	86
Restricted Stock Awards [Member]
Denominator:
Effect of dilutive restricted stock awards	168	25