Consolidated Statements of Stockholders' Equity (USD $) In Thousands, unless otherwise specified		Total	Common Stock	Additional Paid-In Capital	Accumulated Other Comprehensive Income (Loss)	Retained Earnings	Treasury Stock
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]	44,301				44,301
Other comprehensive income (loss)		1,007			1,007
Comprehensive income		45,308
Exercise of stock options (in shares)			399
Exercise of stock options		11,399	4	11,395
Tax effect of equity awards		695		695
Acquisition of Company common stock (in shares)			(1,472)
Acquisition of Company common stock		(64,146)					(64,146)
Stock-based compensation expense		4,932		4,932
Issuance of restricted stock (in shares)			65
Issuance of restricted stock				(1,568)			1,568
Other		172		(99)			271
Balance at Sep. 23, 2012		204,007	371	277,811	2,856	339,102	(416,133)
Balance (in shares) at Sep. 23, 2012			23,011
Balance at Dec. 30, 2012		181,514	371	280,905	1,824	356,461	(458,047)
Balance (in shares) at Dec. 30, 2012			22,241
Comprehensive income:
Net income, net of redeemable noncontrolling interests	[1]	50,732				50,732
Other comprehensive income (loss)		(124)			(124)
Comprehensive income		50,608
Cash dividends paid on common stock		(5,370)		21		(5,391)
Exercise of stock options (in shares)			245
Exercise of stock options		4,193	2	4,191
Tax effect of equity awards		2,246		2,246
Acquisition of Company common stock (in shares)			(1,128)
Acquisition of Company common stock		(69,137)					(69,137)
Stock-based compensation expense		5,642		5,642
Issuance of restricted stock (in shares)			69
Issuance of restricted stock				(2,165)			2,165
Change in redemption value of redeemable noncontrolling interests		(450)				(450)
Other		250		48			202
Balance at Sep. 29, 2013		$ 169,496	$ 373	$ 290,888	$ 1,700	$ 401,352	$ (524,817)
Balance (in shares) at Sep. 29, 2013			21,427

[1] Net income at September 29, 2013 and September 23, 2012 is net of $2,510 and $3,292, respectively, allocable to the redeemable noncontrolling interests for our joint venture arrangements.