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Related Party Transactions - Founder and Chairman and PJMF (Details) - USD ($) | 12 Months Ended
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Dec. 31, 2017 | Dec. 25, 2016 | Dec. 27, 2015
Transactions with entity owned by Founder and Chairman |  |  |
Related party transactions |  |  |
Cash paid for charter aircraft services | $ 446,000 | $ 732,000 | $ 653,000
PJMF |  |  |
Related party transactions |  |  |
Loyalty program reimbursement received | 1,600,000 | 1,100,000 | 841,000
Other reimbursements received | $ 1,300,000 | $ 1,400,000 | $ 1,400,000

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- Definition Represents other reimbursements received. + References No definition available. + Details
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Namespace Prefix: | pzza_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

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- Definition Represents the reimbursement of loyalty program expenses received from a related party. + References No definition available. + Details
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Namespace Prefix: | pzza_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

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- Definition Expenses recognized resulting from transactions (excluding transactions that are eliminated in consolidated or combined financial statements) with related party. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 850 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=6457730&loc=d3e39549-107864 + Details
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Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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- Details
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Namespace Prefix: |
Data Type: | na
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X
- Details
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Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |