Consolidated Statements of Income (As Restated [Member], USD $) In Thousands, except Per Share data, unless otherwise specified	12 Months Ended
	Dec. 25, 2011	Dec. 26, 2010	Dec. 27, 2009
Total revenues	$ 1,217,882	$ 1,126,397	$ 1,078,550
Income from the franchise cheese-purchasing program, net of noncontrolling interest		(5,634)	(18,079)
General and administrative expenses	111,608	109,954	111,361
Other general expenses	9,767	9,030	14,346
Depreciation and amortization	32,681	32,407	31,446
Total costs and expenses	1,130,865	1,039,653	983,332
Operating income	87,017	86,744	95,218
Investment income	755	875	629
Interest expense	(2,981)	(4,309)	(11,660)
Income before income taxes	84,791	83,310	84,187
Income tax expense	26,324	27,247	26,702
Net income, including redeemable noncontrolling interests	58,467	56,063	57,485
Income attributable to redeemable noncontrolling interests	(3,732)	(3,485)	(3,756)
Net income, net of redeemable noncontrolling interests	54,735	52,578	53,729
Basic earnings per common share	$ 2.19	$ 2.00	$ 1.94
Earnings per common share - assuming dilution	$ 2.16	$ 1.99	$ 1.93
Basic weighted average shares outstanding	25,043	26,328	27,738
Diluted weighted average shares outstanding	25,310	26,468	27,909
Supplemental data (see Note 14):
Revenues - affiliates	28,078	24,290	22,473
Other income - affiliates			57
Domestic Company-owned Restaurant [Member]
Revenue from external customers	525,841	503,272	503,818
Cost of sales	126,887	111,010	100,863
Salaries and benefits	142,093	137,840	146,116
Advertising and related costs	49,035	47,174	45,593
Occupancy costs	32,278	32,343	31,685
Other operating expenses	75,558	72,997	69,946
Total costs and expenses	425,851	401,364	394,203
North America [Member]
Franchise royalties	73,694	69,631	62,083
Franchise and development fees	722	610	912
Domestic Commissaries [Member]
Revenue from external customers	508,155	454,506	417,689
All Others [Member]
Other sales	50,912	51,951	54,045
International [Member]
Royalties and franchise and development fees	16,327	13,265	11,780
Revenue from external customers	42,231	33,162	28,223
Operating expenses	35,674	29,429	24,356
Domestic Commissary and Other [Member]
Cost of sales	426,955	382,150	348,265
Salaries and benefits	35,141	34,063	33,839
Other operating expenses	53,188	46,890	43,595
Total costs and expenses	$ 515,284	$ 463,103	$ 425,699