Condensed Consolidated Statements of Income (Unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jul. 01, 2018	Jun. 25, 2017	Jul. 01, 2018	Jun. 25, 2017
Revenues:
Total revenues	$ 407,959	$ 434,778	$ 835,328	$ 884,044
Costs and expenses:
General and administrative expenses	38,712	40,248	78,441	76,662
Depreciation and amortization	11,731	10,654	23,270	21,111
Total costs and expenses	380,470	397,561	780,726	803,146
Refranchising loss, net	(2,122)		(1,918)
Operating income	25,367	37,217	52,684	80,898
Net Interest expense	(5,662)	(1,759)	(10,617)	(3,569)
Income before income taxes	19,705	35,458	42,067	77,329
Income tax expense	7,040	10,476	12,022	22,448
Net income before attribution to noncontrolling interests	12,665	24,982	30,045	54,881
Income attributable to noncontrolling interests	(874)	(1,444)	(1,517)	(2,915)
Net income attributable to the Company	11,791	23,538	28,528	51,966
Calculation of income for earnings per share:
Net income attributable to the Company	11,791	23,538	28,528	51,966
Change in noncontrolling interest redemption value		662		1,182
Net income attributable to participating securities	(72)	(99)	(147)	(216)
Net income attributable to common shareholders	$ 11,719	$ 24,101	$ 28,381	$ 52,932
Basic earnings per common share	$ 0.37	$ 0.66	$ 0.87	$ 1.44
Diluted earnings per common share	$ 0.36	$ 0.65	$ 0.86	$ 1.42
Basic weighted average common shares outstanding	31,941	36,732	32,610	36,771
Diluted weighted average common shares outstanding	32,175	37,217	32,860	37,283
Dividends declared per common share	$ 0.225	$ 0.200	$ 0.450	$ 0.400
Domestic Company-owned restaurants
Revenues:
Total revenues	$ 181,379	$ 202,756	$ 371,621	$ 409,652
Costs and expenses:
Operating costs (excluding depreciation and amortization shown separately below):	147,781	162,433	305,100	327,852
North America franchising
Revenues:
Total revenues	23,912	26,588	48,718	54,195
North America commissary
Revenues:
Total revenues	153,455	160,059	315,168	331,399
Costs and expenses:
Operating costs (excluding depreciation and amortization shown separately below):	143,300	149,472	294,981	309,429
International
Revenues:
Total revenues	29,069	27,245	59,183	52,867
Costs and expenses:
Operating costs (excluding depreciation and amortization shown separately below):	18,248	17,272	37,278	33,063
Other segment
Revenues:
Total revenues	20,144	18,130	40,638	35,931
Costs and expenses:
Operating costs (excluding depreciation and amortization shown separately below):	$ 20,698	$ 17,482	$ 41,656	$ 35,029