Organization (Details) (USD $) In Millions, except Share data, unless otherwise specified	0 Months Ended		9 Months Ended	1 Months Ended
	Oct. 16, 2013 Public [Member]	Oct. 16, 2013 Western Refining, Inc. [Member]	Sep. 30, 2014 Western Refining, Inc. [Member]	Oct. 31, 2014 Subsequent Event [Member]
Related Party Transaction [Line Items]
Limited Liability Company (LLC) or Limited Partnership (LP), Managing Member or General Partner, Ownership Interest			100.00%
Limited Liability Company (LLC) or Limited Partnership (LP), Members or Limited Partners, Ownership Interest	34.70%	65.30%	65.30%	66.20%
Partners' Capital Account, Units, Sold in Public Offering	15,812,500
Business Combination, Consideration Transferred				$ 360