Consolidated Statements of Shareholders' Equity (USD $) In Thousands, except Share data	Common Stock [Member]	Retained Earnings [Member]	Accumulated Other Comprehensive Income (Loss) [Member]	Treasury Stock [Member]	Total
Balance, at Dec. 26, 2009	$ 9,949	$ 827,042	$ 4,628	$ (150,855)	$ 690,764
Balance, shares at Dec. 26, 2009	33,047,807			6,149,315
Net income		68,291			68,291
Other comprehensive income, net of reclassification adjustments and tax			275		275
Treasury stock purchased				(2)	(2)
Treasury Stock, Shares				49
Dividends paid		(31,201)			(31,201)
Balance, at Dec. 25, 2010	9,949	864,132	4,903	(150,857)	728,127
Balance, shares at Dec. 25, 2010	33,047,807			6,149,364
Net income		75,584			75,584
Other comprehensive income, net of reclassification adjustments and tax			545		545
Dividends paid		(58,370)			(58,370)
Balance, at Dec. 31, 2011	9,949	881,346	5,448	(150,857)	745,886
Balance, shares at Dec. 31, 2011	33,047,807			6,149,364
Net income		82,511			82,511
Other comprehensive income, net of reclassification adjustments and tax			(429)		(429)
Dividends paid		(32,278)			(32,278)
Balance, at Dec. 29, 2012	$ 9,949	$ 931,579	$ 5,019	$ (150,857)	$ 795,690
Balance, shares at Dec. 29, 2012	33,047,807			6,149,364