Initial Public Offering (Details) (USD $)	0 Months Ended	6 Months Ended
	Oct. 16, 2013	Jun. 30, 2014	Jun. 30, 2013
Other Ownership Interests [Line Items]
Cash distributed to Western		$ 8,510,000	$ 0
Underwriting Discounts Relating to Issuance of Shares	22,600,000
Retained for general partnership purposes	75,700,000
Offering expenses	2,100,000
Public [Member]
Other Ownership Interests [Line Items]
Partners' Capital Account, Units, Sold in Public Offering	15,812,500
Limited Liability Company (LLC) or Limited Partnership (LP), Members or Limited Partners, Ownership Interest	34.70%
Common Units [Member]
Other Ownership Interests [Line Items]
Sale of Stock, Price Per Share	$ 22.00
Proceeds from Issuance of Common Limited Partners Units	347,900,000
Proceeds from the Sale of Common Units, Net	325,300,000
Common Units [Member] | Public [Member]
Other Ownership Interests [Line Items]
Partners' Capital Account, Units, Sold in Public Offering	15,812,500
Western Refining, Inc. [Member]
Other Ownership Interests [Line Items]
Limited Liability Company (LLC) or Limited Partnership (LP), Members or Limited Partners, Ownership Interest	65.30%	65.30%
Cash distributed to Western	244,900,000
Western Refining, Inc. [Member] | Common Units [Member]
Other Ownership Interests [Line Items]
Partners' Capital Account, Units, Sold in Public Offering	6,998,500
Western Refining, Inc. [Member] | Subordinated Units [Member]
Other Ownership Interests [Line Items]
Partners' Capital Account, Units, Sold in Public Offering	22,811,000
Revolving Credit Facility [Member] | Revolving Credit Agreement - WNRL [Member]
Other Ownership Interests [Line Items]
Line of Credit Facility, Current Borrowing Capacity	300,000,000
Debt Instrument, Fee Amount	$ 2,600,000