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Description Of Business And Summary Of Significant Accounting Policies (Narrative) (Details) $ in Thousands | 12 Months Ended
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Dec. 31, 2015 USD ($) segment item region | Dec. 31, 2014 USD ($) | Dec. 31, 2013 USD ($)
Description Of Business And Summary Of Significant Accounting Policies [Line Items] |  |  |
Number of regions | region | 9 |  |
Number of reportable segments | segment | 1 |  |
Unredeemed gift card sales percentage | 4.00% | 4.00% | 4.00%
Gift card breakage revenue recognition period | 6 months |  |
Gift card breakage recognized | $ 4,226 | $ 3,146 | $ 1,976
Acquisition, development and construction of restaurant capitalized costs | 9,554 | 7,756 | 9,024
Goodwill impairment charges | 0 | 0 | 0
Restricted cash asset | 22,572 | 19,889 |
Aggregate impairment loss recognized on disposition of assets | 6,675 | 0 | 1,220
Advertising and marketing costs | $ 69,257 | 57,290 | $ 44,389
Maximum reasonably assured lease term | 20 years |  |
Current deferred tax asset reclassified to noncurrent |  | 18,968 |
Accrued Payroll And Benefits [Member] |  |  |
Description Of Business And Summary Of Significant Accounting Policies [Line Items] |  |  |
Estimated insurance liability | $ 28,391 | 25,596 |
Accrued Liabilities [Member] |  |  |
Description Of Business And Summary Of Significant Accounting Policies [Line Items] |  |  |
Estimated insurance liability | $ 11,898 | $ 8,359 |
United States [Member] |  |  |
Description Of Business And Summary Of Significant Accounting Policies [Line Items] |  |  |
Number of restaurants | item | 1,971 |  |
Canada [Member] |  |  |
Description Of Business And Summary Of Significant Accounting Policies [Line Items] |  |  |
Number of restaurants | item | 11 |  |
England [Member] |  |  |
Description Of Business And Summary Of Significant Accounting Policies [Line Items] |  |  |
Number of restaurants | item | 7 |  |
France [Member] |  |  |
Description Of Business And Summary Of Significant Accounting Policies [Line Items] |  |  |
Number of restaurants | item | 4 |  |
Germany [Member] |  |  |
Description Of Business And Summary Of Significant Accounting Policies [Line Items] |  |  |
Number of restaurants | item | 1 |  |
ShopHouse Southeast Asian Kitchen [Member] |  |  |
Description Of Business And Summary Of Significant Accounting Policies [Line Items] |  |  |
Number of restaurants | item | 13 |  |
Pizzeria Locale [Member] |  |  |
Description Of Business And Summary Of Significant Accounting Policies [Line Items] |  |  |
Number of restaurants | item | 3 |  |

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