Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	12 Months Ended
	Dec. 26, 2015	Dec. 27, 2014	Dec. 28, 2013
Consolidated Statements of Comprehensive Income [Abstract]
Net income	$ 59,330	$ 54,381	$ 73,186
Other comprehensive (loss) income by component, net of tax:
Unrealized holding (losses) gains arising during period (Net of deferred taxes of $37, $644 and $23, respectively)	(52)	927	(36)
Reclassification adjustment for gains included in net income (Net of deferred taxes of $11 and $26 and $730, respectively)	(16)	(37)	(1,044)
Other comprehensive (loss) income, net of tax	(68)	890	(1,080)
Comprehensive income, net of tax	$ 59,262	$ 55,271	$ 72,106