Subsequent Events (Details) (USD $) In Millions, except Share data, unless otherwise specified					0 Months Ended
	Oct. 16, 2013	Sep. 30, 2013	Oct. 16, 2013 Standby Letters of Credit [Member]	Oct. 16, 2013 Loans [Member]	Oct. 16, 2013 Western Refining Logistics, LP [Member]	Oct. 16, 2013 Western Refining, Inc. [Member]	Oct. 16, 2013 Revolving Credit Agreement [Member] Minimum [Member]	Oct. 16, 2013 Revolving Credit Agreement [Member] Maximum [Member]
Subsequent Event [Line Items]
Partners' Capital Account, Units, Sold in Public Offering					15,812,500
Property, Plant, and Equipment, Historical Net Book Value		$ 27.0
Debt Issuance Cost					2.8
Partners' Capital Account, Units, Sold in Public Offering, Over-Allotment Option					2,062,500
Sale of Stock, Price Per Share					$ 22.00
Common Units, Received by Western Refining, Inc. in Exchange for Contributed Assets						6,998,500
Subordinated Units, Received by Western Refining, Inc. in Exchange for Contributed Assets						22,811,000
Limited Liability Company (LLC) or Limited Partnership (LP), Members or Limited Partners, Ownership Interest						65.30%
Distribution Made to Limited Partner, Cash Distributions Paid					244.9
Proceeds from Issuance of Common Limited Partners Units					325.3
Expense Related to Distribution or Servicing and Underwriting Fees					22.6
Retained Working Capital					75.0
Line of Credit Facility, Current Borrowing Capacity	300.0
Line of Credit Facility, Difference Between Current Borrowing Capacity and Maximum Borrowing Capacity	200.0
Line of Credit Facility, Maximum Borrowing Capacity	500.0
Sublimit, Revolving Credit Facility			$ 25.0	$ 10.0
Debt Instrument, Interest Rate, Stated Percentage							0.75%	1.75%
Debt Instrument, Basis Spread on Variable Rate							1.75%	2.75%