Equity (Details)	3 Months Ended	1 Months Ended
	Mar. 31, 2015	Oct. 31, 2014	Dec. 31, 2014
Public [Member]
Capital Unit [Line Items]
Limited Liability Company (LLC) or Limited Partnership (LP), Members or Limited Partners, Ownership Interest	33.90%
Public [Member] | Common Units [Member]
Capital Unit [Line Items]
Limited Partners' Capital Account, Units Outstanding	15,858,156		15,823,408
Western Refining, Inc. [Member]
Capital Unit [Line Items]
Limited Liability Company (LLC) or Limited Partnership (LP), Members or Limited Partners, Ownership Interest	66.10%	66.20%
Western Refining, Inc. [Member] | Common Units [Member]
Capital Unit [Line Items]
Limited Partners' Capital Account, Units Outstanding	8,158,592		8,158,592
Western Refining, Inc. [Member] | Subordinated Units [Member]
Capital Unit [Line Items]
Limited Partners' Capital Account, Units Outstanding	22,811,000		22,811,000
Phantom Share Units (PSUs) [Member] | WNRL 2013 LTIP [Member]
Capital Unit [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Shares Issued in Period	34,748