Litigation, Commitments and Contingencies (Details 1) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 29, 2013	Dec. 28, 2014 item employee
Settled Litigation | Agne v. Papa John's International, Inc.
Loss Contingency Information About Litigation Matters
Actual settlement cost	$ 2.9
Pending Litigation | Perrin v. Papa John's International, Inc. and Papa John's USA, Inc.
Loss Contingency Information About Litigation Matters
Number of employees who opted into the class action		3,900
Potential class size		28,800
Number of states, which are granted motion for class certification		5
Number of plaintiffs added to case		15,000