System Optimization Gains, Net Summary of Disposition Activity (Details) $ in Thousands	3 Months Ended	9 Months Ended
Sep. 28, 2025 USD ($) number_of_restaurants	Sep. 29, 2024 USD ($) number_of_restaurants	Sep. 28, 2025 USD ($) number_of_restaurants	Sep. 29, 2024 USD ($) number_of_restaurants
System Optimization Gains, Net
Company-operated restaurant ownership percentage	5.00%		5.00%
Proceeds from sales of restaurants			$ 1,485	$ 3,222
System optimization losses, net	$ 29	$ 420	$ 326	$ 573
Sale of franchise-operated restaurants to franchisees
System Optimization Gains, Net
Number of restaurants sold to franchisees \| number_of_restaurants			1	14
Sale of Company-Operated Restaurants to Franchisees [Member]
System Optimization Gains, Net
Number of restaurants sold to franchisees \| number_of_restaurants	3	1	5	1
Proceeds from sales of restaurants	$ 125	$ 834	$ 180	$ 834
Net Assets Sold	0	725	169	725
Other gain (loss) on disposition, net	(125)	6	(150)	6
Gain (Loss) on Disposition of Assets Before Post Closing Purchase Price Adjustments	0	115	(139)	115
Post closing adjustments on sales of restaurants	(6)	440	(16)	694
System optimization losses, net	(6)	555	(155)	809
Sale of other assets
System Optimization Gains, Net
Proceeds from sales of restaurants	5	1,787	1,305	2,388
System optimization losses, net	$ 35	$ (135)	$ 481	$ (236)

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 cash inflow from the sale of long-lived, physical assets that are used in the normal conduct of business to produce goods and services and not intended for resale.

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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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