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Revenues Estimated revenue recognition (Details) $ in Thousands | Jun. 27, 2018 USD ($)
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Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items] |
Deferred franchise revenue expected to be recognized | $ 21,430
2018 [Member] |
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items] |
Deferred franchise revenue expected to be recognized | 1,093
2019 [Member] |
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items] |
Deferred franchise revenue expected to be recognized | 2,107
2020 [Member] |
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items] |
Deferred franchise revenue expected to be recognized | 1,983
2021 [Member] |
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items] |
Deferred franchise revenue expected to be recognized | 1,773
2022 [Member] |
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items] |
Deferred franchise revenue expected to be recognized | 1,665
Thereafter [Member] |
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items] |
Deferred franchise revenue expected to be recognized | 11,360
Development agreements and unopened restaurants [Member] |
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items] |
Deferred franchise revenue expected to be recognized | $ 1,449

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