System Optimization Gains, Net Summary of Disposition Activity (Details) $ in Thousands	12 Months Ended
Dec. 29, 2024 USD ($) number_of_restaurants	Dec. 31, 2023 USD ($) number_of_restaurants	Jan. 01, 2023 USD ($) number_of_restaurants
System optimization gains, net
Company-operated restaurant ownership percentage	5.00%
Proceeds from sales of restaurants	$ 4,946	$ 2,115	$ 8,237
System optimization gains, net	$ 1,219	$ 880	$ 6,779
Sale of franchise-operated restaurants to franchisees
System optimization gains, net
Number of restaurants sold to franchisees \| number_of_restaurants	50	99	79
Sale of company-operated restaurants to franchisees
System optimization gains, net
Number of restaurants sold to franchisees \| number_of_restaurants	3	0	1
Proceeds from sales of restaurants	$ 1,808	$ 0	$ 79
Net assets sold	(1,081)	0	(141)
Net unfavorable leases	0	0	(360)
Other	(1)	0	6
Gain on sales of restaurants, net, before post-closing adjustments	726	0	(416)
Post-closing adjustments on sales of restaurants	694	858	2,877
System optimization gains, net	1,420	858	2,461
Recognition of deferred gain on sale of property	800	858	3,522
Sale of other assets
System optimization gains, net
Proceeds from sales of restaurants	3,138	2,115	7,780
System optimization gains, net	$ (201)	$ 22	4,318
Sale of manhattan company-operated restaurants to franchisees note receivable
System optimization gains, net
Proceeds from sales of restaurants			$ 378

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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-Topic 842
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Gain (loss) on disposition of restaurants to franchisees as part of the system optimization initiative, before the impact of post closing purchase price adjustments on previously completed dispositions.

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