Consolidated Statements of Stockholders' Equity (Unaudited) (USD $) In Thousands, unless otherwise specified		As Restated [Member]	Common Stock	Additional Paid-In Capital	Accumulated Other Comprehensive Income	Retained Earnings As Restated [Member]	Treasury Stock
Balance at Dec. 26, 2010		$ 195,608	$ 361	$ 245,380	$ 849	$ 240,066	$ (291,048)
Balance (in shares) at Dec. 26, 2010			25,439
Comprehensive income:
Net income, net of redeemable noncontrolling interests	[1]	15,976				15,976
Other comprehensive income		1,273			1,273
Comprehensive income		17,249
Exercise of stock options (in shares)			63
Exercise of stock options		1,314	1	1,313
Tax effect of equity awards		31		31
Acquisition of Company common stock		(4,119)					(4,119)
Acquisition of Company common stock (in shares)			(143)
Stock-based compensation expense		1,795		1,795
Other		102		(50)			152
Balance at Mar. 27, 2011		211,980	362	248,469	2,122	256,042	(295,015)
Balance (in shares) at Mar. 27, 2011			25,359
Balance at Dec. 25, 2011		205,647	367	262,456	1,849	294,801	(353,826)
Balance (in shares) at Dec. 25, 2011			24,019
Comprehensive income:
Net income, net of redeemable noncontrolling interests	[1]	16,981				16,981
Other comprehensive income		211			211
Comprehensive income		17,192
Exercise of stock options (in shares)			116
Exercise of stock options		3,728	1	3,727
Tax effect of equity awards		(351)		(351)
Acquisition of Company common stock		(13,820)					(13,820)
Acquisition of Company common stock (in shares)			(372)
Stock-based compensation expense		1,694		1,694
Issuance of restricted stock (in shares)			30
Issuance of restricted stock				(591)			591
Other		81		(152)			233
Balance at Mar. 25, 2012		$ 214,171	$ 368	$ 266,783	$ 2,060	$ 311,782	$ (366,822)
Balance (in shares) at Mar. 25, 2012			23,793

[1] Net income at March 25, 2012 and March 27, 2011 is net of $1,326 and $1,122, respectively, allocable to the redeemable noncontrolling interests for our joint venture arrangements.