Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 24, 2022	Sep. 25, 2021	Sep. 24, 2022	Sep. 25, 2021
Statement of Comprehensive Income [Abstract]
Net income	$ 28,658	$ 28,507	$ 96,313	$ 86,234
Available-for-sale marketable securities
Unrealized holding gains (losses) arising during period (Net of deferred taxes of $547 and $39, respectively for the thirteen weeks ended, and $3,370 and $268, respectively for the thirty-nine weeks ended)	(2,023)	(103)	(9,143)	(683)
Other comprehensive income gain (loss), net of tax	(2,023)	(103)	(9,143)	(683)
Comprehensive income, net of tax	$ 26,635	$ 28,404	$ 87,170	$ 85,551