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Significant Accounting Policies - Fiscal Year, Revenue Recognition and Advertising Costs (Details) - USD ($) $ in Thousands | 3 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 30, 2018 | Dec. 30, 2018 | Dec. 31, 2017 | Dec. 25, 2016
Length of fiscal year |  | 364 days | 371 days | 364 days
Term of franchise agreement |  | 10 years |  |
Advertising and related costs |  | $ 60,800 | $ 72,300 | $ 70,900
PJMF |  |  |  |
Contributions for additional advertising |  | $ 10,000 |  |
Papa Dough Rewards |  |  |  |
Expiration window of rewards program | 6 months |  |  |
Minimum |  |  |  |
Amortization term of equipment incentives |  | 3 years |  |
Maximum |  |  |  |
Amortization term of equipment incentives |  | 5 years |  |

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- Definition Amount charged to advertising expense for the period, which are expenses incurred with the objective of increasing revenue for a specified brand, product or product line. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 720 -SubTopic 35 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6420018&loc=d3e36677-107848 + Details
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- Definition Duration of a fiscal period, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Includes, but not limited to, weeks in a year or quarter. + References No definition available. + Details
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- Definition Expenditures for planning and executing the conception, pricing, promotion, and distribution of ideas, goods, and services. Costs of public relations and corporate promotions are typically considered to be marketing costs. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.4) -URI http://asc.fasb.org/extlink&oid=115205541&loc=SL114868664-224227 + Details
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