Consolidated Statements of Changes in Partners' Equity Statement (USD $) In Thousands	Total	Predecessor [Member]	Subordinated Units [Member] Western Refining, Inc. [Member]	Common Units [Member] Western Refining, Inc. [Member]	Common Units [Member] Public [Member]
Partners' Capital - Beginning Balance at Dec. 31, 2011	$ 72,923	$ 72,923
Less net income (loss) attributable to Predecessor	(50,214)	(50,214)
Partners' Capital Account, Contributions	156,273	156,273
Equity of Predecessor retained by affiliate	0
Partners' Capital - Ending Balance at Dec. 31, 2012	178,982	178,982
Less net income (loss) attributable to Predecessor	(50,322)	(50,322)
Partners' Capital Account, Contributions	113,317	113,317
Equity of Predecessor retained by affiliate	(34,829)	(34,829)
Contribution of property, plant and equipment	0	(146,513)	112,116	34,397
Consideration paid for acquisitions	244,884		176,005	68,879
Proceeds from initial public offering, net of underwriters' discounts and commissions	325,263				325,263
Unit-based compensation expense	49				49
Net income attributable to partners	8,528		4,264	1,308	2,956
Other	2,117				2,117
Partners' Capital - Ending Balance at Dec. 31, 2013	293,987	60,635	(59,625)	(33,174)	326,151
Less net income (loss) attributable to Predecessor	18,801	18,801
Partners' Capital Account, Contributions	(21,068)	(21,068)
Equity of Predecessor retained by affiliate	(2,502)
Contribution of property, plant and equipment	0	(60,870)	46,579	14,291
Consideration paid for acquisitions	320,000		244,872	75,128
Proceeds from initial public offering, net of underwriters' discounts and commissions	66				66
Unit-based compensation expense	1,564				1,564
Cash distribution to Western	(53,436)		(26,534)	(8,508)	(18,394)
Net income attributable to partners	52,992		26,262	8,525	18,205
Other	0	2,502	(1,913)	(589)
Partners' Capital - Ending Balance at Dec. 31, 2014	$ (27,094)	$ 0	$ (260,103)	$ (94,583)	$ 327,592