Revenues - (Contract Balance) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 28, 2022	Dec. 29, 2021
Contract With Customer Liability [Roll Forward]
Balance, December 29, 2021	$ 19,896
Fees received from franchisees	3,435
Acquired deferred franchise revenue	992
Revenue recognized, net	(3,572)
Balance, December 28, 2022	20,751	$ 19,896
Less current portion included in other current liabilities	2,258
Deferred franchise revenue included in other noncurrent liabilities	$ 18,493
Amount of revenue recognized that was previously included in balance of obligation		$ 2,500