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Restaurant Closure Costs (Narrative) (Details) $ in Thousands |  | 12 Months Ended | 18 Months Ended
--- | --- | --- | ---
Jan. 01, 2019 USD ($) | Dec. 31, 2019 property | Dec. 31, 2018 property | Dec. 31, 2017 property | Dec. 31, 2019 property
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
Number of closed or relocated restaurants |  | 9 | 54 | 25 |
Number of restaurants closed as part of planned 2018 closures |  | 6 |  |  | 56
Accounting Standards Update 2016-02 [Member] | Restuarant Closure Costs Into Operating Lease Assets [Member] |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
Reclassification | $ | $ 9,144 |  |  |  |

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- Definition Number Of Restaurants Closed As Part Of Planned Closures + References No definition available. + Details
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