Consolidated Statements of Stockholders' Equity (USD $) In Thousands		Common Stock	Additional Paid-In Capital	Accumulated Other Comprehensive Income (Loss)	Retained Earnings	Treasury Stock	Noncontrolling Interests in Subsidiaries	Total
Balance at Dec. 25, 2011		$ 734	$ 262,089	$ 1,849	$ 294,801	$ (353,826)		$ 205,647
Balance (in shares) at Dec. 25, 2011		48,038
Net income attributable to the Company	[1]				61,660			61,660
Other comprehensive income (loss)				(25)				(25)
Exercise of stock options		8	12,256					12,264
Exercise of stock options (in shares)		864
Tax effect of equity awards			933					933
Acquisition of Company common stock						(106,095)		(106,095)
Acquisition of Company common stock (in shares)		(4,552)
Stock-based compensation expense			6,905					6,905
Issuance of restricted stock			(1,582)			1,582
Issuance of restricted stock (in shares)		132
Other			(67)			292		225
Balance at Dec. 30, 2012		742	280,534	1,824	356,461	(458,047)		181,514
Balance (in shares) at Dec. 30, 2012		44,482
Net income attributable to the Company	[1]				69,537		(24)	69,513
Other comprehensive income (loss)				639				639
Cash dividends paid			41		(10,751)			(10,710)
Exercise of stock options		6	6,859					6,865
Exercise of stock options (in shares)		570
Tax effect of equity awards			1,172					1,172
Acquisition of Company common stock						(118,569)		(118,569)
Acquisition of Company common stock (in shares)		(3,536)
Retirement of Company common stock		(320)	(156,380)		(373,440)	530,140
Stock-based compensation expense			7,409					7,409
Issuance of restricted stock			(2,187)			2,187
Issuance of restricted stock (in shares)		138
Change in redemption value of noncontrolling interests					(510)			(510)
Reclassification from temporary equity to permanent equity							434	434
Contributions from noncontrolling interests							100	100
Other			104			223		327
Other (in shares)		13
Balance at Dec. 29, 2013		428	137,552	2,463	41,297	(44,066)	510	138,184
Balance (in shares) at Dec. 29, 2013		41,667
Net income attributable to the Company	[1]				73,315		695	74,010
Other comprehensive income (loss)				(1,792)				(1,792)
Cash dividends paid			87		(21,692)			(21,605)
Exercise of stock options		5	5,832					5,837
Exercise of stock options (in shares)		535
Tax effect of equity awards			1,047					1,047
Acquisition of Company common stock						(117,400)		(117,400)
Acquisition of Company common stock (in shares)		(2,562)
Stock-based compensation expense			8,712					8,712
Issuance of restricted stock			(5,443)			5,443
Issuance of restricted stock (in shares)		133
Change in redemption value of noncontrolling interests					(44)			(44)
Reclassification from temporary equity to permanent equity							11,391	11,391
Contributions from noncontrolling interests							1,086	1,086
Distributions to noncontrolling interests							(1,200)	(1,200)
Other			125			364		489
Other (in shares)		9
Balance at Dec. 28, 2014		$ 433	$ 147,912	$ 671	$ 92,876	$ (155,659)	$ 12,482	$ 98,715
Balance (in shares) at Dec. 28, 2014		39,782

[1] Net income to the Company at December 28, 2014, December 29, 2013 and December 30, 2012 excludes $4,382, $3,442 and $4,342, respectively, allocable to the noncontrolling interests for our joint venture arrangements.