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Investment in Piceance Energy Additional Information (Detail) (USD $)
12 Months Ended
Dec. 31, 2014
Dec. 31, 2013
Schedule of Equity Method Investments [Line Items]    
Depreciation, depletion, amortization and accretion $ 14,897,000us-gaap_DepreciationDepletionAndAmortization $ 5,982,000us-gaap_DepreciationDepletionAndAmortization
Unrealized gains on derivative instruments 1,015,000us-gaap_UnrealizedGainLossOnDerivatives 0us-gaap_UnrealizedGainLossOnDerivatives
Amortization of natural gas and oil properties 15 years  
Piceance Energy [Member]    
Schedule of Equity Method Investments [Line Items]    
Ownership of Piceance Energy, LLC 33.34%us-gaap_EquityMethodInvestmentOwnershipPercentage
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= parr_PiceanceEnergyMember
 
Line credit maximum borrowing amount 400,000,000us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= parr_PiceanceEnergyMember
 
Asset borrowing base currently at 125,000,000us-gaap_LineOfCreditFacilityCurrentBorrowingCapacity
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= parr_PiceanceEnergyMember
 
Balance outstanding on the revolving credit facility 98,000,000us-gaap_LineOfCreditFacilityAmountOutstanding
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= parr_PiceanceEnergyMember
90,200,000us-gaap_LineOfCreditFacilityAmountOutstanding
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= parr_PiceanceEnergyMember
Depreciation, depletion, amortization and accretion 32,800,000us-gaap_DepreciationDepletionAndAmortization
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= parr_PiceanceEnergyMember
26,600,000us-gaap_DepreciationDepletionAndAmortization
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= parr_PiceanceEnergyMember
Unrealized gains on derivative instruments 9,800,000us-gaap_UnrealizedGainLossOnDerivatives
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= parr_PiceanceEnergyMember
 
Unrealized losses on derivative instruments 1,100,000us-gaap_DerivativeLossOnDerivative
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= parr_PiceanceEnergyMember
 
Amount of equity in underlying assets exceeding carrying value $ 14,700,000us-gaap_EquityMethodInvestmentDifferenceBetweenCarryingAmountAndUnderlyingEquity
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= parr_PiceanceEnergyMember
$ 15,300,000us-gaap_EquityMethodInvestmentDifferenceBetweenCarryingAmountAndUnderlyingEquity
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= parr_PiceanceEnergyMember