Consolidated Statements of Comprehensive Income (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 28, 2013	Dec. 29, 2012	Dec. 31, 2011
Consolidated Statements of Comprehensive Income [Abstract]
Net income	$ 71,721	$ 82,511	$ 75,584
Other comprehensive (loss) income by component, net of tax:
Unrealized holding (losses) gains arising during period (Net of deferred taxes of $23, $0 and $923, respectively)	(36)	(9)	1,391
Reclassification adjustment for gains included in net income (Net of deferred taxes of $730, $293 and $601, respectively)	(1,044)	(420)	(846)
Other comprehensive (loss) income, net of tax	(1,080)	(429)	545
Comprehensive income, net of tax	$ 70,641	$ 82,082	$ 76,129