System Optimization Gains, Net Summary of Disposition Activity (Details) $ in Thousands	3 Months Ended	9 Months Ended
Sep. 29, 2024 USD ($) number_of_restaurants	Oct. 01, 2023 USD ($) number_of_restaurants	Sep. 29, 2024 USD ($) number_of_restaurants	Oct. 01, 2023 USD ($) number_of_restaurants
System optimization gains, net
Company-operated restaurant ownership percentage	5.00%		5.00%
Proceeds from sales of restaurants			$ 3,222	$ 280
System optimization gains, net	$ 420	$ 120	$ 573	$ 119
Sale of franchise-operated restaurants to franchisees
System optimization gains, net
Number of restaurants sold to franchisees \| number_of_restaurants			14	88
Sale of Company-Operated Restaurants to Franchisees [Member]
System optimization gains, net
Number of restaurants sold to franchisees \| number_of_restaurants	1	0	1	0
Proceeds from sales of restaurants	$ 834	$ 0	$ 834	$ 0
Net Assets Sold	725	0	725	0
Other gain (loss) on disposition, net	6	0	6	0
Gain (Loss) on Disposition of Assets Before Post Closing Purchase Price Adjustments	115	0	115	0
Post closing adjustments on sales of restaurants	440	537	694	537
System optimization gains, net	555	537	809	537
Sale of other assets
System optimization gains, net
Proceeds from sales of restaurants	1,787		2,388	280
System optimization gains, net	$ (135)	$ (417)	$ (236)	$ (418)

Amount of gain (loss) on sale or disposal of property, plant and equipment assets, including oil and gas property and timber property.

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The number of franchises sold during the period when there are significant changes in franchisor-owned outlets or franchised outlets during the period.

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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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Approximate Company-operated restaurant ownership percentage

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Gain (Loss) on Disposition of Assets Before Post Closing Purchase Price Adjustments

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Net Assets Sold

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Post Closing Adjustments on Sales of Restaurants

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