v3.19.2
Document and Entity Information - shares
6 Months Ended
Jun. 30, 2019
Jul. 31, 2019
Document and Entity Information [Abstract]    
Document Type 10-Q  
Document Quarterly Report true  
Document Transition Report false  
Amendment Flag false  
Document Period End Date Jun. 30, 2019  
Entity Incorporation, State or Country Code DE  
Entity File Number 0-21660  
Entity Tax Identification Number 61-1203323  
Entity Address, Address Line One 2002 Papa John’s Boulevard  
Entity Address, City or Town Louisville  
Entity Address, State or Province KY  
Entity Address, Postal Zip Code 40299-2367  
City Area Code 502  
Local Phone Number 261-7272  
Title of 12(b) Security Common stock, $0.01 par value  
Document Fiscal Year Focus 2019  
Document Fiscal Period Focus Q2  
Trading Symbol PZZA  
Security Exchange Name NASDAQ  
Entity Registrant Name PAPA JOHNS INTERNATIONAL INC  
Entity Central Index Key 0000901491  
Current Fiscal Year End Date --12-29  
Entity Current Reporting Status Yes  
Entity Interactive Data Current Yes  
Entity Filer Category Large Accelerated Filer  
Entity Small Business false  
Entity Emerging Growth Company false  
Entity Common Stock, Shares Outstanding   31,786,388
Entity Shell Company false