Description of Business and Summary of Significant Accounting Policies (Details 5) - USD ($) |
12 Months Ended | ||
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Dec. 31, 2017 |
Dec. 25, 2016 |
Dec. 27, 2015 |
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| Goodwill and intangible assets, net | |||
| Goodwill impairment losses | $ 0 | $ 0 | $ 0 |
| Liquor licenses | Maximum | |||
| Goodwill and intangible assets, net | |||
| Amortization period of non-transferable liquor licenses | 20 years | ||
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- Definition Useful life of finite-lived intangible assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. No definition available.
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. No definition available.
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- Definition Amount of loss from the write-down of an asset representing the future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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