Subsequent Events (Narrative)(Details) |
Mar. 15, 2018
State
Restaurant
|
Dec. 31, 2017
State
Restaurant
|
Dec. 25, 2016
Restaurant
|
Dec. 27, 2015
Restaurant
|
|---|---|---|---|---|
| Subsequent Event [Line Items] | ||||
| Number of Restaurants | 91 | 80 | 69 | |
| Number of States in which Entity Operates | State | 19 | |||
| Subsequent Event [Member] | ||||
| Subsequent Event [Line Items] | ||||
| Number of new restaurants | 1 | |||
| Number of Restaurants | 92 | |||
| Number of States in which Entity Operates | State | 19 |
| X | ||||||||||
- Definition Number of New Restaurants No definition available.
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| X | ||||||||||
- Definition Represents the number of restaurants. No definition available.
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| X | ||||||||||
- Definition The number of states the entity operates in as of the balance sheet date. No definition available.
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| X | ||||||||||
- Definition Detail information of subsequent event by type. User is expected to use existing line items from elsewhere in the taxonomy as the primary line items for this disclosure, which is further associated with dimension and member elements pertaining to a subsequent event. No definition available.
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| X | ||||||||||
- Details
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