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		6 Months Ended
	Jul. 16, 2022	Jul. 17, 2021	Apr. 23, 2022	Apr. 24, 2021	Jul. 16, 2022	Jul. 17, 2021
Numerator:
Net earnings	$ 5,115	$ 16,814	$ 19,289	$ 19,516	$ 24,404	$ 36,330
Adjustment for earnings attributable to participating securities	(54)	(305)			(307)	(736)
Net earnings used in calculating earnings per share	$ 5,061	$ 16,509			$ 24,097	$ 35,594
Denominator:
Weighted average shares outstanding, including participating securities	35,564	35,693			35,565	35,734
Adjustment for participating securities	(373)	(648)			(448)	(724)
Shares used in calculating basic earnings per share	35,191	35,045			35,117	35,010
Shares used in calculating diluted earnings per share	36,155	35,242			36,022	35,166
Basic net earnings per share:	$ 0.14	$ 0.47			$ 0.69	$ 1.02
Diluted net earnings per share:	$ 0.14	$ 0.47			$ 0.67	$ 1.01
Stock Warrant [Member]
Denominator:
Effect of dilutive restricted stock awards	789	134			735	112
Restricted Stock Awards [Member]
Denominator:
Effect of dilutive restricted stock awards	175	63			170	44