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Revenue - Additional Information (Details) - USD ($) $ in Thousands | Jul. 14, 2019 | Dec. 30, 2018
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Disaggregation of Revenue [Line Items] |  |
Unearned revenue | $ 39,723 | $ 55,360
Gift card revenue |  |
Disaggregation of Revenue [Line Items] |  |
Unearned revenue | 29,400 | 45,300
Deferred loyalty revenue |  |
Disaggregation of Revenue [Line Items] |  |
Unearned revenue | $ 10,300 | $ 10,000

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- Details
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