Condensed Consolidated Statements of Operations - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 26, 2021	Sep. 27, 2020	Sep. 26, 2021	Sep. 27, 2020
Revenues:
Total revenues	$ 512,782	$ 472,941	$ 1,539,536	$ 1,343,423
Costs and expenses:
General and administrative expenses	54,070	52,601	157,779	148,680
Depreciation and amortization	11,477	12,764	36,830	37,436
Total costs and expenses	474,205	448,392	1,409,460	1,272,868
Operating income	38,577	24,549	130,076	70,555
Net interest expense	(3,979)	(3,636)	(11,275)	(11,230)
Income before income taxes	34,598	20,913	118,801	59,325
Income tax expense	4,057	4,516	19,387	11,984
Net income before attribution to noncontrolling interests	30,541	16,397	99,414	47,341
Net income attributable to noncontrolling interests	(1,285)	(689)	(4,021)	(2,576)
Net income attributable to the Company	29,256	15,708	95,393	44,765
Calculation of net income (loss) for earnings per share:
Net income attributable to the Company	29,256	15,708	95,393	44,765
Dividends on redemption of Series B Convertible Preferred Stock			(109,852)
Dividends paid to participating securities	(137)	(3,548)	(5,964)	(10,546)
Net income attributable to participating securities	(158)	(703)		(1,809)
Net income (loss) attributable to common shareholders	$ 28,961	$ 11,457	$ (20,423)	$ 32,410
Basic earnings (loss) per common share	$ 0.80	$ 0.35	$ (0.59)	$ 1.00
Diluted earnings (loss) per common share	$ 0.79	$ 0.35	$ (0.59)	$ 0.99
Basic weighted average common shares outstanding	36,387	32,616	34,619	32,347
Diluted weighted average common shares outstanding	36,719	32,971	34,619	32,643
Dividends declared per common share	$ 0.350	$ 0.225	$ 0.800	$ 0.675
Domestic Company-owned restaurants
Revenues:
Total revenues	$ 191,584	$ 178,371	$ 584,942	$ 526,317
Costs and expenses:
Operating costs (excluding depreciation and amortization shown separately below):	155,477	144,803	465,658	419,082
North America franchising
Revenues:
Total revenues	31,933	25,281	97,123	68,895
North America commissary
Revenues:
Total revenues	189,224	181,338	560,743	504,379
Costs and expenses:
Operating costs (excluding depreciation and amortization shown separately below):	175,399	167,937	518,310	466,676
International
Revenues:
Total revenues	38,408	33,440	110,629	87,592
Costs and expenses:
Operating costs (excluding depreciation and amortization shown separately below):	21,743	19,370	62,791	52,775
Other segment
Revenues:
Total revenues	61,633	54,511	186,099	156,240
Costs and expenses:
Operating costs (excluding depreciation and amortization shown separately below):	$ 56,039	$ 50,917	$ 168,092	$ 148,219