Consolidated Statements of Comprehensive Income (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 29, 2012	Sep. 24, 2011	Sep. 29, 2012	Sep. 24, 2011
Consolidated Statements of Comprehensive Income
Net income	$ 17,178	$ 16,982	$ 60,407	$ 56,283
Other comprehensive income by component, net of tax:
Unrealized holding gains arising during period (Net of deferred taxes of $180 and $72 respectively for the 13 Weeks Ended and $697 and $554 respectively for the 39 Weeks Ended)	241	101	926	840
Reclassification adjustment for gains included in net income (Net of deferred taxes of $0 and $105 respectively for the 13 Weeks Ended and $314 and $528 respectively for the 39 Weeks Ended)		(148)	(394)	(744)
Other comprehensive income, net of tax	241	(47)	532	96
Comprehensive income, net of tax	$ 17,419	$ 16,935	$ 60,939	$ 56,379