Consolidated Statements of Income - USD ($) shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 25, 2016	Dec. 27, 2015	Dec. 28, 2014
Revenues:
Total revenues	$ 1,713,620	$ 1,637,375	$ 1,598,149
Costs and expenses:
General and administrative expenses	163,812	163,626	147,810
Depreciation and amortization	40,987	40,307	39,965
Total costs and expenses	1,559,319	1,501,068	1,479,540
Refranchising and impairment gains/(losses), net	10,222		(979)
Operating income	164,523	136,307	117,630
Legal settlement expense	898	(12,278)
Investment income	785	794	702
Interest expense	(7,397)	(5,676)	(4,077)
Income before income taxes	158,809	119,147	114,255
Income tax expense	49,717	37,183	36,558
Net income before attribution to noncontrolling interests	109,092	81,964	77,697
Income attributable to noncontrolling interests	(6,272)	(6,282)	(4,382)
Net income attributable to the Company	102,820	75,682	73,315
Calculation of income for earnings per share:
Net income attributable to the Company	102,820	75,682	73,315
Change in noncontrolling interest redemption value	567	65	(44)
Net income attributable to participating securities	(420)	(325)	(402)
Net income attributable to common shareholders	$ 102,967	$ 75,422	$ 72,869
Basic earnings per common share	$ 2.76	$ 1.91	$ 1.78
Diluted earnings per common share	$ 2.74	$ 1.89	$ 1.75
Basic weighted average common shares outstanding	37,253	39,458	40,960
Diluted weighted average common shares outstanding	37,608	40,000	41,718
Dividends declared per common share	$ 0.75	$ 0.63	$ 0.53
Domestic Company-owned restaurants
Revenues:
Total revenues	$ 815,931	$ 756,307	$ 701,854
Costs and expenses:
Operating costs (excluding depreciation and amortization shown separately below)	651,536	604,206	572,058
North America franchising
Revenues:
Total revenues	102,980	96,056	90,169
North America commissary and other
Revenues:
Total revenues	681,606	680,321	703,671
Costs and expenses:
Operating costs (excluding depreciation and amortization shown separately below)	631,475	629,423	655,989
International
Revenues:
Total revenues	113,103	104,691	102,455
Costs and expenses:
Operating costs (excluding depreciation and amortization shown separately below)	$ 71,509	$ 63,506	$ 63,718