Consolidated Statements of Comprehensive Income - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Revenues:
Rental revenues		$ 29,066		$ 57,873
Total revenues	$ 208,415	237,794	$ 422,182	468,217
Cost of revenues:
Franchise expenses	88,280	82,269	175,646	160,301
Bad debt expense (credit)	1,721	(147)	2,644	(446)
Company restaurant expenses	431	37,881	1,510	75,289
Interest expense from finance leases	695	746	1,404	1,514
Other rental expenses	21,573	21,097	42,472	42,452
Total rental expenses	22,268	21,843	43,876	43,966
Financing expenses	94	106	192	213
Total cost of revenues	111,073	142,099	221,224	279,769
Gross profit	97,342	95,695	200,958	188,448
General and administrative expenses	47,840	44,063	98,927	85,611
Interest expense, net	17,781	15,359	32,490	30,892
Closure and impairment charges	847	1,311	1,314	1,457
Amortization of intangible assets	2,719	2,665	5,493	5,330
Loss on extinguishment of debt	1,671	0	10	0
Loss (gain) on disposition of assets	2,047	(234)	2,118	(1,530)
Income before income taxes	24,437	32,531	60,606	66,688
Income tax provision	(6,189)	(8,569)	(14,948)	(17,876)
Net income	18,248	23,962	45,658	48,812
Other comprehensive income net of tax:
Foreign currency translation adjustment	(1)	(3)	0	(4)
Total comprehensive income	18,247	23,959	45,658	48,808
Net income available to common stockholders:
Net income	18,248	23,962	45,658	48,812
Less: Net income allocated to unvested participating restricted stock	(446)	(673)	(1,125)	(1,273)
Net income available to common stockholders	$ 17,802	$ 23,289	$ 44,533	$ 47,539
Net income available to common stockholders per share:
Basic (USD per share)	$ 1.16	$ 1.45	$ 2.91	$ 2.90
Diluted (USD per share)	$ 1.16	$ 1.45	$ 2.91	$ 2.90
Weighted average shares outstanding:
Basic (in shares)	15,308	16,050	15,304	16,386
Diluted (in shares)	15,317	16,080	15,324	16,418
Franchise Revenue:
Revenues:
Revenue from contract with customer	$ 177,917	$ 168,259	$ 357,879	$ 329,491
Royalties, franchise fees and other
Revenues:
Revenue from contract with customer	101,938	94,148	204,863	184,497
Advertising revenues
Revenues:
Revenue from contract with customer	75,979	74,111	153,016	144,994
Company restaurant sales
Revenues:
Revenue from contract with customer		39,511		78,927
Financing revenues
Revenues:
Revenue from contract with customer		958		1,926
Advertising fees
Revenues:
Revenue from contract with customer	75,979	74,111	153,016	144,994
Cost of revenues:
Franchise expenses	75,979	74,111	153,016	144,994
Other franchise expenses
Cost of revenues:
Franchise expenses	$ 10,580	$ 8,305	$ 19,986	$ 15,753