Equity (Details) (USD $)	3 Months Ended					12 Months Ended		1 Months Ended	0 Months Ended
	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2013	Dec. 31, 2014	Dec. 31, 2013	Oct. 31, 2014	Oct. 16, 2013	Oct. 15, 2014
Capital Unit [Line Items]
Cash distributions declared per common unit	$ 0.3175	$ 0.3075	$ 0.2975	$ 0.2407	$ 0	$ 1.1632	$ 0
Common Units [Member]
Capital Unit [Line Items]
Limited Partners' Capital Account, Units Issued										1,160,092
Western Refining, Inc. [Member]
Capital Unit [Line Items]
Limited Liability Company (LLC) or Limited Partnership (LP), Members or Limited Partners, Ownership Interest						66.20%		66.20%	65.30%
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
Public [Member]
Capital Unit [Line Items]
Limited Liability Company (LLC) or Limited Partnership (LP), Members or Limited Partners, Ownership Interest									34.70%
Public [Member] | Common Units [Member]
Capital Unit [Line Items]
Limited Partners' Capital Account, Units Outstanding	15,823,408					15,823,408