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Goodwill and Intangible Assets (Details) | 12 Months Ended
--- | ---
Dec. 30, 2018 USD ($) restaurant | Dec. 31, 2017 USD ($) restaurant | Dec. 25, 2016 USD ($) restaurant
Goodwill |  |  |
Balance at beginning of year | $ 96,979,000 | $ 95,935,000 |
Acquisition | 0 | 0 |
Foreign currency translation adjustment | (1,141,000) | 1,044,000 |
Balance at end of year | 95,838,000 | 96,979,000 | $ 95,935,000
Goodwill impairment losses | 0 | 0 | 0
Intangible assets subject to amortization: |  |  |
Gross Carrying Amount | 78,215,000 | 77,596,000 |
Accumulated Amortization | (51,066,000) | (46,811,000) |
Net Carrying Amount | 27,149,000 | 30,785,000 |
Intangible Assets, Net (Excluding Goodwill) [Abstract] |  |  |
Gross Carrying Amount | 85,675,000 | 85,084,000 |
Accumulated Amortization | (51,066,000) | (46,811,000) |
Net Carrying Amount | 34,609,000 | 38,273,000 |
Impairment of indefinite-lived intangible assets | $ 0 | $ 0 | $ 0
Number of restaurants impaired | restaurant | 41 | 13 | 19
Aggregate amortization expense | $ 4,300,000 | $ 4,900,000 | $ 5,100,000
Liquor licenses |  |  |
Indefinite-lived intangible assets: |  |  |
Gross Carrying Amount | 7,460,000 | 7,488,000 |
Accumulated Amortization | 0 | 0 |
Net Carrying Amount | 7,460,000 | 7,488,000 |
Franchise rights |  |  |
Intangible assets subject to amortization: |  |  |
Gross Carrying Amount | 54,404,000 | 54,447,000 |
Accumulated Amortization | (33,160,000) | (29,685,000) |
Net Carrying Amount | 21,244,000 | 24,762,000 |
Leasehold interests |  |  |
Intangible assets subject to amortization: |  |  |
Gross Carrying Amount | 13,001,000 | 13,001,000 |
Accumulated Amortization | (8,136,000) | (7,459,000) |
Net Carrying Amount | 4,865,000 | 5,542,000 |
Liquor licenses |  |  |
Intangible assets subject to amortization: |  |  |
Gross Carrying Amount | 10,810,000 | 10,148,000 |
Accumulated Amortization | (9,770,000) | (9,667,000) |
Net Carrying Amount | $ 1,040,000 | $ 481,000 |

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