Segments - Schedule of Segment Reporting Information by Segment (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Segment Reporting Information [Line Items]
Rental revenues	$ 28,970	$ 30,127	$ 89,559	$ 91,292
Total revenues	217,405	194,099	682,667	566,733
Interest expense		17,700		53,100
Depreciation and amortization	10,700	7,900	31,515	23,730
Segment profit	31,732	31,247	101,931	78,554
Operating Segments
Segment Reporting Information [Line Items]
Segment profit	89,700	92,600	287,100	254,700
Corporate and unallocated expenses, net
Segment Reporting Information [Line Items]
Segment profit	(58,000)	(61,400)	(185,200)	(176,100)
Franchise operations | Operating Segments
Segment Reporting Information [Line Items]
Depreciation and amortization	2,600	2,600	7,700	8,000
Segment profit	81,600	83,700	254,000	226,200
Rental operations | Operating Segments
Segment Reporting Information [Line Items]
Rental revenues	29,000	30,100	89,600	91,300
Interest expense	1,800	2,300	6,100	7,000
Depreciation and amortization	3,300	2,900	10,200	8,700
Segment profit	6,400	7,100	21,400	22,900
Company restaurants | Operating Segments
Segment Reporting Information [Line Items]
Interest expense	500	0	1,600	0
Depreciation and amortization	1,600	0	4,700	0
Segment profit	200	0	6,900	0
Financing operations | Operating Segments
Segment Reporting Information [Line Items]
Segment profit	1,500	1,800	4,800	5,600
Corporate
Segment Reporting Information [Line Items]
Interest expense	15,200	15,400	45,200	46,100
Depreciation and amortization	3,200	2,400	8,900	7,000
Franchise revenues
Segment Reporting Information [Line Items]
Revenue from contract with customer, excluding assessed tax	156,200	162,078	487,794	469,332
Franchise revenues | Franchise operations | Operating Segments
Segment Reporting Information [Line Items]
Revenue from contract with customer, excluding assessed tax	156,200	162,100	487,800	469,300
Company restaurant sales
Segment Reporting Information [Line Items]
Revenue from contract with customer, excluding assessed tax	30,548	0	100,034	0
Company restaurant sales | Company restaurants | Operating Segments
Segment Reporting Information [Line Items]
Revenue from contract with customer, excluding assessed tax	30,500	0	100,000	0
Financing revenues
Segment Reporting Information [Line Items]
Revenue from contract with customer, excluding assessed tax	1,687	1,894	5,280	6,109
Financing revenues | Financing operations | Operating Segments
Segment Reporting Information [Line Items]
Revenue from contract with customer, excluding assessed tax	$ 1,700	$ 1,900	$ 5,300	$ 6,100