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Significant Accounting Policies - Basis of Presentation (Details) | 9 Months Ended | 12 Months Ended |
--- | --- | --- | ---
Sep. 29, 2020 | Dec. 31, 2019 | Oct. 29, 2020
Significant Accounting Policies |  |  |
Length of fiscal year | 364 days | 364 days |
Operating capacity of reopened dinning rooms (in percentage) |  |  | 50.00%

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- Definition The percentage of operating capacity of reopened dinning rooms. + References No definition available. + Details
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Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

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- References No definition available. + Details
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Period Type: | duration

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- Definition Duration of a fiscal period, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Includes, but not limited to, weeks in a year or quarter. + References No definition available. + Details
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Namespace Prefix: | us-gaap_
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Balance Type: | na
Period Type: | duration