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Revenue Recognition (Details) - USD ($)
$ in Thousands
 3 Months Ended 9 Months Ended
Sep. 30, 2025
Oct. 01, 2024
Sep. 30, 2025
Oct. 01, 2024
Dec. 31, 2024
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]          
Expected unredeemed percent     15.00%    
Estimated redemption period     24 months    
Gift card liability, current $ 1,885   $ 1,885   $ 2,000
Revenue recognized for redemption of gift cards 400 $ 500 $ 1,800 $ 2,100  
Period in which initial fees received from franchisees will be recognized as revenue     20 years    
Loyalty program deferred revenue 1,100   $ 1,100   1,000
Accrued Expenses and Other Current Liabilities          
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]          
Gift card liability, current 1,900   1,900   2,000
Other Long-term Liabilities          
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]          
Gift card liability, non-current $ 600   $ 600   $ 1,000