Summary of Significant Accounting Policies - Leases (Details) $ in Thousands	3 Months Ended			9 Months Ended
	Sep. 30, 2022 USD ($) lease	Jun. 30, 2022 USD ($)	Mar. 31, 2022 USD ($)	Sep. 30, 2022 USD ($) lease
Leases
Number of franchisees' leases recognized by the Company | lease	0			0
ROU Assets written off		$ 2,700
Operating Lease Liability Derecognized		1,500
Loss on termination recognized		(2,500)		$ (2,460)
Payments For Lease Termination		$ 1,300		1,285
Impairment charge - leased assets	$ 2,513		$ 3,700	$ 6,248