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Revenues - (Contract Balance) (Details) $ in Thousands	12 Months Ended
	Dec. 27, 2023 USD ($)
Contract With Customer Liability [Roll Forward]
Balance, December 28, 2022	$ 20,751
Fees received from franchisees	1,729
Revenue recognized, net	(3,330)
Balance, December 27, 2023	19,150
Less current portion included in other current liabilities	2,164
Deferred franchise revenue included in other noncurrent liabilities	16,986
Amount of revenue recognized that was previously included in balance of obligation	$ 2,700

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