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Consolidated Balance Sheet (Parenthetical) (Parentheticals) (USD $)
In Thousands, except Share data, unless otherwise specified
Dec. 31, 2014
Dec. 31, 2013
Allowance for Doubtful Accounts Receivable, Current $ 107us-gaap_AllowanceForDoubtfulAccountsReceivableCurrent $ 0us-gaap_AllowanceForDoubtfulAccountsReceivableCurrent
Subordinated Units [Member] | Western Refining, Inc. [Member]    
Limited Partners' Capital Account, Units Outstanding 22,811,000us-gaap_LimitedPartnersCapitalAccountUnitsOutstanding
/ us-gaap_CapitalUnitsByClassAxis
= wnr_SubordinatedUnitsMember
/ dei_LegalEntityAxis
= wnr_WesternRefiningInc.Member		 22,811,000us-gaap_LimitedPartnersCapitalAccountUnitsOutstanding
/ us-gaap_CapitalUnitsByClassAxis
= wnr_SubordinatedUnitsMember
/ dei_LegalEntityAxis
= wnr_WesternRefiningInc.Member
Common Units [Member] | Western Refining, Inc. [Member]    
Limited Partners' Capital Account, Units Outstanding 8,158,592us-gaap_LimitedPartnersCapitalAccountUnitsOutstanding
/ us-gaap_CapitalUnitsByClassAxis
= wnr_CommonUnitsMember
/ dei_LegalEntityAxis
= wnr_WesternRefiningInc.Member		 6,998,500us-gaap_LimitedPartnersCapitalAccountUnitsOutstanding
/ us-gaap_CapitalUnitsByClassAxis
= wnr_CommonUnitsMember
/ dei_LegalEntityAxis
= wnr_WesternRefiningInc.Member
Common Units [Member] | Public [Member]    
Limited Partners' Capital Account, Units Outstanding 15,823,408us-gaap_LimitedPartnersCapitalAccountUnitsOutstanding
/ us-gaap_CapitalUnitsByClassAxis
= wnr_CommonUnitsMember
/ dei_LegalEntityAxis
= wnr_PublicMember		 15,812,500us-gaap_LimitedPartnersCapitalAccountUnitsOutstanding
/ us-gaap_CapitalUnitsByClassAxis
= wnr_CommonUnitsMember
/ dei_LegalEntityAxis
= wnr_PublicMember