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Debt Schedule of Debt (Detail) (USD $)
In Thousands, unless otherwise specified
Mar. 31, 2015
Dec. 31, 2014
Debt Instrument [Line Items]    
Total debt, net of unamortized debt discount $ 112,499us-gaap_LongTermDebt $ 136,610us-gaap_LongTermDebt
Less current maturities (40,485)us-gaap_LongTermDebtCurrent (29,100)us-gaap_LongTermDebtCurrent
Long-term debt, net of current maturities and unamortized discount 72,014us-gaap_LongTermDebtNoncurrent 107,510us-gaap_LongTermDebtNoncurrent
Retail Credit Agreement [Member]    
Debt Instrument [Line Items]    
Long-term Line of Credit 22,100us-gaap_LongTermLineOfCredit
/ parr_AgreementTypeAxis
= parr_RetailCreditAgreementMember
[1] 22,750us-gaap_LongTermLineOfCredit
/ parr_AgreementTypeAxis
= parr_RetailCreditAgreementMember
[1]
Texadian Uncommitted Credit Agreement [Member]    
Debt Instrument [Line Items]    
Long-term Line of Credit 0us-gaap_LongTermLineOfCredit
/ parr_AgreementTypeAxis
= parr_TexadianUncommittedCreditAgreementMember
26,500us-gaap_LongTermLineOfCredit
/ parr_AgreementTypeAxis
= parr_TexadianUncommittedCreditAgreementMember
Tranche B Loan [Member]    
Debt Instrument [Line Items]    
Long-term Line of Credit $ 90,399us-gaap_LongTermLineOfCredit
/ us-gaap_CreditFacilityAxis
= parr_TrancheBTermLoanMember
$ 87,360us-gaap_LongTermLineOfCredit
/ us-gaap_CreditFacilityAxis
= parr_TrancheBTermLoanMember
[1] Fair value approximates carrying value due to the floating rate interest.