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Summary of Significant Accounting Policies - (Concentration Risk) (Details)	12 Months Ended
	Dec. 27, 2023	Dec. 28, 2022	Dec. 29, 2021
Revenue from franchises and licenses risk | Revenue Benchmark | Ten Largest Franchises
Concentration Risk
Franchise revenue, percentage	38.00%	37.00%	37.00%

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