Intangible Assets and Goodwill - Components of Company's Intangible Assets (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021	Dec. 31, 2021
Finite Lived Intangible Assets [Line Items]
Net Balance	$ 138,914		$ 143,832
Amortization expense	8,400	$ 6,400
Franchise agreements
Finite Lived Intangible Assets [Line Items]
Initial Cost	268,473		267,770
Accumulated Amortization	(129,559)		(123,938)
Net Balance	$ 138,914		143,832
Franchise agreements | Weighted Average
Finite Lived Intangible Assets [Line Items]
Useful life of intangible assets	13 years
Other Intangible Assets
Finite Lived Intangible Assets [Line Items]
Initial Cost	$ 65,557		70,894
Accumulated Amortization	(31,152)		(38,364)
Net Balance	$ 34,405		32,530
Other Intangible Assets | Weighted Average
Finite Lived Intangible Assets [Line Items]
Useful life of intangible assets	4 years 3 months 18 days
Software
Finite Lived Intangible Assets [Line Items]
Initial Cost	$ 46,652		51,368
Accumulated Amortization	(25,012)		(29,682)
Net Balance	$ 21,640		21,686
Software | Weighted Average
Finite Lived Intangible Assets [Line Items]
Useful life of intangible assets	4 years 1 month 6 days
Software Development
Finite Lived Intangible Assets [Line Items]
Capitalized software development costs	$ 2,800		1,900
Trademarks
Finite Lived Intangible Assets [Line Items]
Initial Cost	2,361		2,356
Accumulated Amortization	(1,601)		(1,533)
Net Balance	$ 760		823
Trademarks | Weighted Average
Finite Lived Intangible Assets [Line Items]
Useful life of intangible assets	8 years 3 months 18 days
Non-compete intangible asset
Finite Lived Intangible Assets [Line Items]
Initial Cost	$ 13,274		13,100
Accumulated Amortization	(2,549)		(4,563)
Net Balance	$ 10,725		8,537
Non-compete intangible asset | Weighted Average
Finite Lived Intangible Assets [Line Items]
Useful life of intangible assets	4 years 3 months 18 days
Training materials
Finite Lived Intangible Assets [Line Items]
Initial Cost	$ 2,400		2,400
Accumulated Amortization	(1,720)		(1,600)
Net Balance	$ 680		800
Training materials | Weighted Average
Finite Lived Intangible Assets [Line Items]
Useful life of intangible assets	5 years
Other..
Finite Lived Intangible Assets [Line Items]
Initial Cost	$ 870		1,670
Accumulated Amortization	(270)		(986)
Net Balance	$ 600		$ 684
Other.. | Weighted Average
Finite Lived Intangible Assets [Line Items]
Useful life of intangible assets	6 years 7 months 6 days