XML 83 R63.htm IDEA: XBRL DOCUMENT
v3.8.0.1

Noncontrolling Interests - Joint Ventures (Details) | Dec. 31, 2017 restaurant item | Dec. 25, 2016 restaurant | Dec. 27, 2015 restaurant
--- | --- | --- | ---
Minority Interest [Line Items] |  |  |
Number of joint ventures | item | 5 |  |
Joint ventures |  |  |
Minority Interest [Line Items] |  |  |
Number of Restaurants | restaurant | 246 | 222 | 213

X
- Definition Represents the number of joint ventures. + References No definition available. + Details
Name: | pzza_NumberOfJointVentures
Namespace Prefix: | pzza_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

X
- 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_MinorityInterestLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Represents the number of restaurants. + References No definition available. + Details
Name: | us-gaap_NumberOfRestaurants
Namespace Prefix: | us-gaap_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

X
- Details
Name: | us-gaap_RelatedPartyTransactionsByRelatedPartyAxis=us-gaap_CorporateJointVentureMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |