Intangible Assets and Goodwill - Components of Company's Intangible Assets (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Finite Lived Intangible Assets [Line Items]
Net Balance	$ 101,516	$ 120,174
Amortization expense	29,900	33,400	$ 29,100
Franchise agreements
Finite Lived Intangible Assets [Line Items]
Initial Cost	225,716	224,397
Accumulated Amortization	(124,200)	(104,223)
Net Balance	$ 101,516	120,174
Franchise agreements | Weighted Average
Finite Lived Intangible Assets [Line Items]
Useful life of intangible assets	12 years 1 month 6 days
Other Intangible Assets
Finite Lived Intangible Assets [Line Items]
Initial Cost	$ 70,210	66,594
Accumulated Amortization	(51,034)	(40,831)
Net Balance	$ 19,176	25,763
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	$ 52,918	48,658
Accumulated Amortization	(39,192)	(32,198)
Net Balance	$ 13,726	16,460
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	$ 1,000	4,600
Trademarks
Finite Lived Intangible Assets [Line Items]
Initial Cost	971	1,713
Accumulated Amortization	(649)	(1,272)
Net Balance	$ 322	441
Trademarks | Weighted Average
Finite Lived Intangible Assets [Line Items]
Useful life of intangible assets	9 years 1 month 6 days
Non-compete agreements
Finite Lived Intangible Assets [Line Items]
Initial Cost	$ 13,051	12,953
Accumulated Amortization	(8,156)	(4,878)
Net Balance	$ 4,895	8,075
Non-compete agreements | 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	$ (2,400)	(2,080)
Net Balance		320
Training materials | Weighted Average
Finite Lived Intangible Assets [Line Items]
Useful life of intangible assets	0 years
Other
Finite Lived Intangible Assets [Line Items]
Initial Cost	$ 870	870
Accumulated Amortization	(637)	(403)
Net Balance	$ 233	$ 467
Other | Weighted Average
Finite Lived Intangible Assets [Line Items]
Useful life of intangible assets	7 years