Consolidated Statements of Comprehensive Income - USD ($) shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Revenues:
Franchise and restaurant revenues	$ 475,030	$ 501,745	$ 542,606
Rental revenues	121,437	123,037	127,650
Financing revenues	8,352	9,191	10,844
Total revenues	604,819	633,973	681,100
Cost of revenues:
Franchise and restaurant expenses	171,983	162,860	186,986
Rental expenses	90,592	91,540	94,588
Financing expenses	598	155	520
Total cost of revenues	263,173	254,555	282,094
Gross profit	341,646	379,418	399,006
Impairment of goodwill and intangible assets	531,634	0	0
General and administrative expenses	165,679	148,935	155,428
Interest expense	61,979	61,479	63,254
Amortization of intangible assets	10,009	9,981	10,000
Closure and other impairment charges	3,968	5,092	2,576
(Gain) loss on disposition of assets	(6,249)	809	(901)
(Loss) income before income tax benefit (provision)	(425,374)	153,122	168,649
Income tax benefit (provision)	94,835	(55,130)	(63,726)
Net (loss) income	(330,539)	97,992	104,923
Other comprehensive income (loss), net of tax:
Foreign currency translation adjustment	2	0	(34)
Total comprehensive (loss) income	(330,537)	97,992	104,889
Net (loss) income available to common stockholders:
Net (loss) income	(330,539)	97,992	104,923
Less: net loss (income) allocated to unvested participating restricted stock	6,519	(1,387)	(1,400)
Net (loss) income available to common stockholders	$ (324,020)	$ 96,605	$ 103,523
Net (loss) income available to common stockholders per share:
Basic (USD per share)	$ (18.28)	$ 5.36	$ 5.55
Diluted (USD per share)	$ (18.28)	$ 5.33	$ 5.52
Weighted average shares outstanding:
Basic (shares)	17,725	18,030	18,637
Diluted (shares)	17,740	18,125	18,768
Dividends declared per common share (USD per share)	$ 3.88	$ 3.73	$ 3.545
Dividends paid per common share (USD per share)	$ 3.88	$ 3.68	$ 3.5