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Revenues - Narrative (Details) - USD ($) $ in Thousands |  | 6 Months Ended
--- | --- | ---
Dec. 25, 2019 | Jun. 24, 2020
Disaggregation of Revenue [Line Items] |  |
Liability balance |  | $ 2,112
Deferred revenue recognized | $ 1,500 |
Gift Card Redemption |  |
Disaggregation of Revenue [Line Items] |  |
Liability balance | $ 6,500 | 5,000
Deferred revenue recognized |  | $ 500
Minimum | Deferred franchise revenue | Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2020-06-25 |  |
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items] |  |
Deferred franchise revenue expected to be recognized, period |  | 10 years
Maximum | Deferred franchise revenue | Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2020-06-25 |  |
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items] |  |
Deferred franchise revenue expected to be recognized, period |  | 20 years

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