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Condensed Consolidated Balance Sheets (Unaudited) (Parentheticals) (USD $)
In Thousands, except Share data, unless otherwise specified
Mar. 31, 2015
Dec. 31, 2014
Deferred revenue - affiliate $ 8,011us-gaap_DeferredRevenueCurrent $ 6,779us-gaap_DeferredRevenueCurrent
Allowance for Doubtful Accounts Receivable, Current $ 137us-gaap_AllowanceForDoubtfulAccountsReceivableCurrent $ 107us-gaap_AllowanceForDoubtfulAccountsReceivableCurrent
Public [Member] | Common Units [Member]    
Limited Partners' Capital Account, Units Outstanding 15,858,156us-gaap_LimitedPartnersCapitalAccountUnitsOutstanding
/ us-gaap_CapitalUnitsByClassAxis
= wnr_CommonUnitsMember
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= wnr_PublicMember
15,823,408us-gaap_LimitedPartnersCapitalAccountUnitsOutstanding
/ us-gaap_CapitalUnitsByClassAxis
= wnr_CommonUnitsMember
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= wnr_PublicMember
Western Refining, Inc. [Member] | Common Units [Member]    
Limited Partners' Capital Account, Units Outstanding 8,158,592us-gaap_LimitedPartnersCapitalAccountUnitsOutstanding
/ us-gaap_CapitalUnitsByClassAxis
= wnr_CommonUnitsMember
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= wnr_WesternRefiningInc.Member
8,158,592us-gaap_LimitedPartnersCapitalAccountUnitsOutstanding
/ us-gaap_CapitalUnitsByClassAxis
= wnr_CommonUnitsMember
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= wnr_WesternRefiningInc.Member
Western Refining, Inc. [Member] | Subordinated Units [Member]    
Limited Partners' Capital Account, Units Outstanding 22,811,000us-gaap_LimitedPartnersCapitalAccountUnitsOutstanding
/ us-gaap_CapitalUnitsByClassAxis
= wnr_SubordinatedUnitsMember
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= wnr_WesternRefiningInc.Member
22,811,000us-gaap_LimitedPartnersCapitalAccountUnitsOutstanding
/ us-gaap_CapitalUnitsByClassAxis
= wnr_SubordinatedUnitsMember
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= wnr_WesternRefiningInc.Member