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Acquisitions (Details) (USD $)
1 Months Ended 3 Months Ended
Oct. 31, 2014
bbl
Dec. 31, 2014
bbl
Oct. 15, 2014
Common Units [Member]      
Business Acquisition [Line Items]      
Limited Partners' Capital Account, Units Issued     1,160,092us-gaap_LimitedPartnersCapitalAccountUnitsIssued
/ us-gaap_CapitalUnitsByClassAxis
= wnr_CommonUnitsMember
Crude Oil Trucking Transportation Services Agreement [Member]      
Business Acquisition [Line Items]      
Long-term Purchase Commitment, Minimum Quantity Required 1,525,000us-gaap_LongTermPurchaseCommitmentMinimumQuantityRequired
/ us-gaap_TransactionTypeAxis
= wnr_CrudeOilTruckingTransportationServicesAgreementMember
   
Fuel Distribution and Supply Agreement [Member]      
Business Acquisition [Line Items]      
Long-term Purchase Commitment, Minimum Quantity Required 645,000us-gaap_LongTermPurchaseCommitmentMinimumQuantityRequired
/ us-gaap_TransactionTypeAxis
= wnr_FuelDistributionandSupplyAgreementMember
   
Profit Margin, per Gallon 0.03wnr_ProfitMarginperGallon
/ us-gaap_TransactionTypeAxis
= wnr_FuelDistributionandSupplyAgreementMember
   
Product Supply Agreement [Member]      
Business Acquisition [Line Items]      
Long-term Purchase Commitment, Minimum Quantity Required   79,000us-gaap_LongTermPurchaseCommitmentMinimumQuantityRequired
/ us-gaap_TransactionTypeAxis
= wnr_ProductSupplyAgreementMember
 
Western Refining Wholesale, LLC [Member]      
Business Acquisition [Line Items]      
Limited Liability Company (LLC) or Limited Partnership (LP), Members or Limited Partners, Ownership Interest 66.20%us-gaap_LimitedLiabilityCompanyLLCOrLimitedPartnershipLPMembersOrLimitedPartnersOwnershipInterest
/ us-gaap_BusinessAcquisitionAxis
= wnr_WesternRefiningWholesaleLLCMember
   
Payments to Acquire Businesses, Gross 320,000,000us-gaap_PaymentsToAcquireBusinessesGross
/ us-gaap_BusinessAcquisitionAxis
= wnr_WesternRefiningWholesaleLLCMember
   
Payments for (Proceeds from) Businesses and Interest in Affiliates (51,000,000)us-gaap_PaymentsForProceedsFromBusinessesAndInterestInAffiliates
/ us-gaap_BusinessAcquisitionAxis
= wnr_WesternRefiningWholesaleLLCMember
   
Intercompany Agreements, Description 10    
Western Refining Wholesale, LLC [Member] | Common Units [Member]      
Business Acquisition [Line Items]      
Limited Partners' Capital Account, Units Issued     1,160,092us-gaap_LimitedPartnersCapitalAccountUnitsIssued
/ us-gaap_BusinessAcquisitionAxis
= wnr_WesternRefiningWholesaleLLCMember
/ us-gaap_CapitalUnitsByClassAxis
= wnr_CommonUnitsMember
Western Refining Wholesale, LLC [Member] | Revolving Credit Agreement - WNRL [Member] | Revolving Credit Facility [Member]      
Business Acquisition [Line Items]      
Long-term Line of Credit     269,000,000us-gaap_LineOfCredit
/ us-gaap_BusinessAcquisitionAxis
= wnr_WesternRefiningWholesaleLLCMember
/ us-gaap_DebtInstrumentAxis
= wnr_RevolvingCreditAgreementWNRLMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_RevolvingCreditFacilityMember
Western Refining Wholesale, LLC [Member] | Crude Oil Trucking Transportation Services Agreement [Member]      
Business Acquisition [Line Items]      
Long-term Purchase Commitment, Minimum Quantity Required 1,525,000us-gaap_LongTermPurchaseCommitmentMinimumQuantityRequired
/ us-gaap_BusinessAcquisitionAxis
= wnr_WesternRefiningWholesaleLLCMember
/ us-gaap_TransactionTypeAxis
= wnr_CrudeOilTruckingTransportationServicesAgreementMember
   
Western Refining Wholesale, LLC [Member] | Fuel Distribution and Supply Agreement [Member]      
Business Acquisition [Line Items]      
Long-term Purchase Commitment, Minimum Quantity Required 645,000us-gaap_LongTermPurchaseCommitmentMinimumQuantityRequired
/ us-gaap_BusinessAcquisitionAxis
= wnr_WesternRefiningWholesaleLLCMember
/ us-gaap_TransactionTypeAxis
= wnr_FuelDistributionandSupplyAgreementMember
   
Profit Margin, per Gallon 0.03wnr_ProfitMarginperGallon
/ us-gaap_BusinessAcquisitionAxis
= wnr_WesternRefiningWholesaleLLCMember
/ us-gaap_TransactionTypeAxis
= wnr_FuelDistributionandSupplyAgreementMember
   
Western Refining Wholesale, LLC [Member] | Product Supply Agreement [Member]      
Business Acquisition [Line Items]      
Long-term Purchase Commitment, Minimum Quantity Required 79,000us-gaap_LongTermPurchaseCommitmentMinimumQuantityRequired
/ us-gaap_BusinessAcquisitionAxis
= wnr_WesternRefiningWholesaleLLCMember
/ us-gaap_TransactionTypeAxis
= wnr_ProductSupplyAgreementMember