Revenue - Disaggregation of Franchise Revenue by Major Type (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Franchise Revenues
Disaggregation of Revenue [Line Items]
Total franchise revenues	$ 662,438	$ 631,936	$ 469,453
Royalties
Disaggregation of Revenue [Line Items]
Total franchise revenues	303,724	292,372	215,214
Advertising fees
Disaggregation of Revenue [Line Items]
Total franchise revenues	289,328	274,790	201,494
Pancake and waffle dry mix sales and other
Disaggregation of Revenue [Line Items]
Total franchise revenues	60,749	51,250	38,936
Franchise and development fees
Disaggregation of Revenue [Line Items]
Total franchise revenues	$ 8,637	$ 13,524	$ 13,809