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Insurance Reserves (Details 1) (USD $)
In Thousands, unless otherwise specified
 12 Months Ended
Dec. 28, 2014
Dec. 29, 2013
Insurance Reserves    
Balance at the beginning of the period $ 19,465pzza_InsuranceReservesCurrentAndNoncurrent $ 22,303pzza_InsuranceReservesCurrentAndNoncurrent
Additions 33,926pzza_InsuranceExpense 23,187pzza_InsuranceExpense
Payments (27,980)pzza_InsurancePayments (26,025)pzza_InsurancePayments
Balance at the end of the period $ 25,411pzza_InsuranceReservesCurrentAndNoncurrent $ 19,465pzza_InsuranceReservesCurrentAndNoncurrent