Condensed Consolidated Statements of Income (Unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 25, 2016	Sep. 27, 2015	Sep. 25, 2016	Sep. 27, 2015
Revenues:
Total revenues	$ 422,442	$ 389,284	$ 1,274,001	$ 1,220,559
Costs and expenses:
General and administrative expenses	40,549	37,660	123,419	124,456
Depreciation and amortization	10,614	10,461	30,389	30,638
Total costs and expenses	389,059	361,847	1,160,889	1,124,481
Operating income	33,383	27,437	113,112	96,078
Legal settlement expense				(12,278)
Net interest expense	(1,756)	(1,180)	(4,876)	(3,576)
Income before income taxes	31,627	26,257	108,236	80,224
Income tax expense	8,977	7,281	33,423	24,541
Net income before attribution to noncontrolling interests	22,650	18,976	74,813	55,683
Income attributable to noncontrolling interests	(1,183)	(1,005)	(4,623)	(4,696)
Net income attributable to the Company	21,467	17,971	70,190	50,987
Calculation of income for earnings per share:
Net income attributable to the Company	21,467	17,971	70,190	50,987
Change in noncontrolling interest redemption value	(157)	49	342	192
Net income attributable to participating securities	(87)	(73)	(288)	(223)
Net income attributable to common shareholders	$ 21,223	$ 17,947	$ 70,244	$ 50,956
Basic earnings per common share	$ 0.57	$ 0.46	$ 1.88	$ 1.29
Diluted earnings per common share	$ 0.57	$ 0.45	$ 1.86	$ 1.27
Basic weighted average common shares outstanding	36,989	39,394	37,374	39,640
Diluted weighted average common shares outstanding	37,359	39,895	37,712	40,210
Dividends declared per common share	$ 0.200	$ 0.175	$ 0.550	$ 0.455
International
Revenues:
Total revenues	$ 28,941	$ 27,001	$ 84,856	$ 78,753
Costs and expenses:
Operating costs (excluding depreciation and amortization shown separately below)	18,594	16,481	53,936	48,209
Domestic market | Domestic Company-owned restaurants
Revenues:
Total revenues	199,041	180,059	608,968	563,308
Costs and expenses:
Operating costs (excluding depreciation and amortization shown separately below)	161,750	148,536	486,529	450,924
Domestic market | North America franchising
Revenues:
Total revenues	24,776	22,285	76,554	71,185
Domestic market | Domestic commissary and other
Revenues:
Total revenues	169,684	159,939	503,623	507,313
Costs and expenses:
Operating costs (excluding depreciation and amortization shown separately below)	$ 157,552	$ 148,709	$ 466,616	$ 470,254