Condensed Consolidated Statements of Income (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 29, 2014	Jun. 30, 2013	Jun. 29, 2014	Jun. 30, 2013
Total revenues	$ 380,864	$ 349,186	$ 782,241	$ 704,790
General and administrative expenses	33,562	33,126	70,528	66,284
Other general expenses	1,964	1,597	3,497	2,782
Depreciation and amortization	9,855	8,530	19,019	17,067
Total costs and expenses	353,865	322,238	723,240	648,217
Operating income	26,999	26,948	59,001	56,573
Net interest (expense) income	(763)	(340)	(1,355)	332
Income before income taxes	26,236	26,608	57,646	56,905
Income tax expense	8,397	8,563	19,266	18,541
Net income before attribution to noncontrolling interests	17,839	18,045	38,380	38,364
Income attributable to noncontrolling interests	(1,091)	(895)	(2,321)	(1,908)
Net income attributable to the Company	16,748	17,150	36,059	36,456
Calculation of income for earnings per share:
Net income attributable to the Company	16,748	17,150	36,059	36,456
Increase in noncontrolling interest redemption value	(31)		(39)
Net income attributable to participating securities	(81)		(218)
Net income attributable to common shareholders	16,636	17,150	35,802	36,456
Basic earnings per common share	$ 0.40	$ 0.39	$ 0.86	$ 0.83
Diluted earnings per common share	$ 0.40	$ 0.39	$ 0.85	$ 0.81
Basic weighted average common shares outstanding	41,225	43,484	41,501	43,996
Diluted weighted average common shares outstanding	41,970	44,500	42,332	45,086
Dividends declared per common share (in dollars per share)	$ 0.125		$ 0.250
International
Royalties and franchise and development fees	6,317	5,391	12,096	10,458
Restaurant and commissary sales	19,256	15,746	37,106	30,605
International restaurant and commissary expenses	15,876	12,983	30,761	25,636
North America | Domestic Company-owned restaurants
Total revenues	170,000	155,153	348,193	313,051
Cost of sales	42,030	37,825	87,186	74,898
Salaries and benefits	45,805	42,053	93,388	85,325
Advertising and related costs	15,354	14,677	31,610	29,470
Occupancy costs	9,446	8,939	18,757	17,650
Other operating expenses	25,220	22,431	50,507	45,176
Total costs and expenses	137,855	125,925	281,448	252,519
North America | North America franchising
Franchise royalties	20,983	20,230	43,597	40,963
Franchise and development fees	132	219	276	765
North America | Domestic commissaries
Total revenues	150,581	140,003	314,628	283,897
Cost of sales	118,470	107,676	247,394	218,599
Salaries and benefits	6,847	6,084	13,871	12,100
Other operating expenses	16,215	15,185	32,070	30,646
Total costs and expenses	141,532	128,945	293,335	261,345
North America | Other
Total revenues	13,595	12,444	26,345	25,051
Other operating expenses	$ 13,221	$ 11,132	$ 24,652	$ 22,584