Condensed Consolidated Statements of Income - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 26, 2016	Jun. 28, 2015	Jun. 26, 2016	Jun. 28, 2015
Total revenues	$ 422,964	$ 398,991	$ 851,559	$ 831,275
General and administrative expenses	42,623	43,047	82,870	86,796
Depreciation and amortization	10,031	10,136	19,775	20,177
Total costs and expenses	386,133	367,995	771,830	762,634
Operating income	36,831	30,996	79,729	68,641
Legal settlement expense		(12,278)		(12,278)
Net interest expense	(1,631)	(1,187)	(3,120)	(2,396)
Income before income taxes	35,200	17,531	76,609	53,967
Income tax expense	11,088	5,063	24,446	17,260
Net income before attribution to noncontrolling interests	24,112	12,468	52,163	36,707
Income attributable to noncontrolling interests	(1,571)	(1,688)	(3,440)	(3,691)
Net income attributable to the Company	22,541	10,780	48,723	33,016
Calculation of income for earnings per share:
Net income attributable to the Company	22,541	10,780	48,723	33,016
Change in noncontrolling interest redemption value	279	73	499	143
Net income attributable to participating securities	(91)	(50)	(201)	(150)
Net income attributable to common shareholders	$ 22,729	$ 10,803	$ 49,021	$ 33,009
Basic earnings per common share	$ 0.61	$ 0.27	$ 1.30	$ 0.83
Diluted earnings per common share	$ 0.61	$ 0.27	$ 1.29	$ 0.82
Basic weighted average common shares outstanding	37,203	39,692	37,567	39,764
Diluted weighted average common shares outstanding	37,507	40,217	37,904	40,368
Dividends declared per common share	$ 0.175	$ 0.140	$ 0.350	$ 0.280
International
Total revenues	$ 28,460	$ 26,326	$ 55,915	$ 51,752
Operating costs (excluding depreciation and amortization shown separately below)	17,752	16,250	35,342	31,728
Domestic market | Domestic Company-owned restaurants
Total revenues	204,248	185,962	409,927	383,249
Operating costs (excluding depreciation and amortization shown separately below)	163,469	147,356	324,779	302,388
Domestic market | North America franchising
Total revenues	25,302	23,276	51,778	48,900
Domestic market | Domestic commissary and other
Total revenues	164,954	163,427	333,939	347,374
Operating costs (excluding depreciation and amortization shown separately below)	$ 152,258	$ 151,206	$ 309,064	$ 321,545