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Commitments and Contingencies (Details) | Oct. 29, 2018 employee
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Durling et al v. Papa John's International, Inc. |
Loss Contingencies [Line Items] |
Approximate number of employees who opted into the class action | 9,571

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- Definition Number of employees who opted into the class action lawsuit. + References No definition available. + Details
Name: | pzza_NumberOfEmployeesThatOptedIntoClassActionLawSuit
Namespace Prefix: | pzza_
Data Type: | xbrli:positiveIntegerItemType
Balance Type: | na
Period Type: | instant

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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
Name: | us-gaap_LossContingenciesLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- Details
Name: | srt_LitigationCaseAxis=pzza_DurlingVsPapaJohnSMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |