Condensed Consolidated Statements of Income (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 28, 2014	Sep. 29, 2013	Sep. 28, 2014	Sep. 29, 2013
Total revenues	$ 390,399	$ 346,342	$ 1,172,640	$ 1,051,132
General and administrative expenses	33,671	31,780	104,199	98,064
Other general expenses	3,143	1,260	6,640	4,042
Depreciation and amortization	10,520	8,605	29,539	25,672
Total costs and expenses	365,213	324,894	1,088,453	973,111
Operating income	25,186	21,448	84,187	78,021
Net interest (expense) income	(968)	(185)	(2,323)	147
Income before income taxes	24,218	21,263	81,864	78,168
Income tax expense	7,256	6,385	26,522	24,926
Net income before attribution to noncontrolling interests	16,962	14,878	55,342	53,242
Income attributable to noncontrolling interests	(887)	(602)	(3,208)	(2,510)
Net income attributable to the Company	16,075	14,276	52,134	50,732
Calculation of income for earnings per share:
Net income attributable to the Company	16,075	14,276	52,134	50,732
Increase in noncontrolling interest redemption value	(42)		(81)
Net income attributable to participating securities	(77)		(295)
Net income attributable to common shareholders	15,956	14,276	51,758	50,732
Basic earnings per common share	$ 0.39	$ 0.33	$ 1.25	$ 1.16
Diluted earnings per common share	$ 0.39	$ 0.32	$ 1.23	$ 1.13
Basic weighted average common shares outstanding	40,739	43,182	41,248	43,710
Diluted weighted average common shares outstanding	41,386	44,168	42,021	44,762
Dividends declared per common share	$ 0.14	$ 0.125	$ 0.39	$ 0.375
International
Royalties and franchise and development fees	6,673	5,454	18,769	15,912
Restaurant and commissary sales	19,719	16,934	56,825	47,539
International restaurant and commissary expenses	16,605	14,372	47,366	40,008
North America | Domestic Company-owned restaurants
Total revenues	169,076	152,662	517,269	465,713
Cost of sales	42,460	38,233	129,646	113,131
Salaries and benefits	45,835	41,701	139,223	127,026
Advertising and related costs	15,369	14,424	46,979	43,894
Occupancy costs	10,344	9,583	29,101	27,233
Other operating expenses	25,343	23,061	75,850	68,237
Total costs and expenses	139,351	127,002	420,799	379,521
North America | North America franchising
Franchise royalties	22,131	19,419	65,728	60,382
Franchise and development fees	217	263	493	1,028
North America | Domestic commissaries
Total revenues	149,224	138,044	463,852	421,941
Cost of sales	116,908	107,930	364,302	326,529
Salaries and benefits	7,208	6,173	21,079	18,273
Other operating expenses	15,013	15,262	47,083	45,908
Total costs and expenses	139,129	129,365	432,464	390,710
North America | Other
Total revenues	23,359	13,566	49,704	38,617
Other operating expenses	$ 22,794	$ 12,510	$ 47,446	$ 35,094