Equity (Equity Rollforward) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Partners' Capital			$ 39,590
Partners' Capital Account, Unit-based Compensation			1,465
Issuance of common units			277,751
Offering costs for issuance of common units			(477)
Net loss attributable to General Partner	$ (7,165)	$ (4,260)	(23,309)	$ (22,996)
Contributions from affiliate			20,286
Allocation of net investment of St. Paul Park Logistics Transaction			0
Consideration paid for St. Paul Park Logistics Transaction			(195,000)
Distribution Made to Limited Partner, Cash Distributions Declared			(61,767)
Net Income (Loss) Allocated to Limited Partners	14,023	16,493	45,904	47,731
Partners' Capital	104,443		104,443
Other Ownership Interest [Member]
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Partners' Capital			108,013
Partners' Capital Account, Unit-based Compensation			0
Issuance of common units			0
Offering costs for issuance of common units			0
Net loss attributable to General Partner			(23,309)
Contributions from affiliate			20,286
Allocation of net investment of St. Paul Park Logistics Transaction			(104,990)
Consideration paid for St. Paul Park Logistics Transaction			0
Distribution Made to Limited Partner, Cash Distributions Declared			0
Net Income (Loss) Allocated to Limited Partners			0
Partners' Capital	0		0
General Partner [Member] | Western Refining, Inc. [Member]
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Partners' Capital			(1,085)
Partners' Capital Account, Unit-based Compensation			0
Issuance of common units			0
Offering costs for issuance of common units			0
Net loss attributable to General Partner			0
Contributions from affiliate			0
Allocation of net investment of St. Paul Park Logistics Transaction			0
Consideration paid for St. Paul Park Logistics Transaction			0
Distribution Made to Limited Partner, Cash Distributions Declared			(2,857)
Net Income (Loss) Allocated to Limited Partners			0
Partners' Capital	(3,942)		(3,942)
TexNew Mex Units [Member]
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Distribution Made to Limited Partner, Cash Distributions Declared			0
TexNew Mex Units [Member] | Western Refining, Inc. [Member]
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Partners' Capital			(310)
Partners' Capital Account, Unit-based Compensation			0
Issuance of common units			0
Offering costs for issuance of common units			0
Net loss attributable to General Partner			0
Contributions from affiliate			0
Allocation of net investment of St. Paul Park Logistics Transaction			0
Consideration paid for St. Paul Park Logistics Transaction			0
Distribution Made to Limited Partner, Cash Distributions Declared			0
Net Income (Loss) Allocated to Limited Partners			0
Partners' Capital	(310)		(310)
Common Units [Member]
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Distribution Made to Limited Partner, Cash Distributions Declared	(11,913)	(8,766)	(31,366)	(25,086)
Common Units [Member] | Limited Partner [Member] | Public [Member]
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Partners' Capital			327,351
Partners' Capital Account, Unit-based Compensation			1,465
Issuance of common units			277,751
Offering costs for issuance of common units			477
Net loss attributable to General Partner			0
Contributions from affiliate			0
Allocation of net investment of St. Paul Park Logistics Transaction			0
Consideration paid for St. Paul Park Logistics Transaction			0
Distribution Made to Limited Partner, Cash Distributions Declared			(21,006)
Net Income (Loss) Allocated to Limited Partners			16,907
Partners' Capital	601,991		601,991
Common Units [Member] | Limited Partner [Member] | Western Refining, Inc. [Member]
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Partners' Capital			(105,090)
Partners' Capital Account, Unit-based Compensation			0
Issuance of common units			0
Offering costs for issuance of common units			0
Net loss attributable to General Partner			0
Contributions from affiliate			0
Allocation of net investment of St. Paul Park Logistics Transaction			28,696
Consideration paid for St. Paul Park Logistics Transaction			(53,235)
Distribution Made to Limited Partner, Cash Distributions Declared			(10,360)
Net Income (Loss) Allocated to Limited Partners			7,942
Partners' Capital	(132,047)		(132,047)
Subordinated Units [Member]
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Distribution Made to Limited Partner, Cash Distributions Declared	(9,409)	$ (8,326)	(27,544)	$ (23,838)
Subordinated Units [Member] | Limited Partner [Member] | Western Refining, Inc. [Member]
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Partners' Capital			(289,289)
Partners' Capital Account, Unit-based Compensation			0
Issuance of common units			0
Offering costs for issuance of common units			0
Net loss attributable to General Partner			0
Contributions from affiliate			0
Allocation of net investment of St. Paul Park Logistics Transaction			76,294
Consideration paid for St. Paul Park Logistics Transaction			(141,765)
Distribution Made to Limited Partner, Cash Distributions Declared			(27,544)
Net Income (Loss) Allocated to Limited Partners			21,055
Partners' Capital	$ (361,249)		$ (361,249)