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Supply and Exchange Agreements (Textual) (Detail) (USD $)
 3 Months Ended
Mar. 31, 2015
Mar. 31, 2014
Handling fees $ 3,900,000us-gaap_ShippingHandlingAndTransportationCosts $ 3,500,000us-gaap_ShippingHandlingAndTransportationCosts
Supply and exchange agreement expenses 5,557,000us-gaap_InterestExpense 3,507,000us-gaap_InterestExpense
Supply and Exchange Agreements [Member]    
Supply and exchange agreement expenses $ 1,400,000us-gaap_InterestExpense
/ parr_AgreementTypeAxis
= parr_SupplyandExchangeAgreementsMember		 $ 1,400,000us-gaap_InterestExpense
/ parr_AgreementTypeAxis
= parr_SupplyandExchangeAgreementsMember