Equity (Equity Rollforward) (Details) - USD ($) $ in Thousands	3 Months Ended
Mar. 31, 2017	Mar. 31, 2016
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Partners' Capital	$ 98,324
Unit-based compensation	(98)
Conversion of subordinated units	0
Distribution Made to Limited Partner, Cash Distributions Declared	(28,783)
Net Income (Loss) Allocated to Limited Partners	19,886	$ 14,007
Partners' Capital	89,329
General Partner [Member] \| Western Refining, Inc. [Member]
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Partners' Capital	(5,532)
Unit-based compensation	0
Conversion of subordinated units	0
Distribution Made to Limited Partner, Cash Distributions Declared	(2,147)
Net Income (Loss) Allocated to Limited Partners	0
Partners' Capital	(7,679)
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)
Unit-based compensation	0
Conversion of subordinated units	0
Distribution Made to Limited Partner, Cash Distributions Declared	0
Net Income (Loss) Allocated to Limited Partners	0
Partners' Capital	(310)
Common Units [Member]
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Distribution Made to Limited Partner, Cash Distributions Declared	(16,657)	(9,595)
Common Units [Member] \| Limited Partner [Member] \| Public [Member]
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Partners' Capital	600,100
Unit-based compensation	(98)
Conversion of subordinated units	0
Distribution Made to Limited Partner, Cash Distributions Declared	(12,629)
Net Income (Loss) Allocated to Limited Partners	9,430
Partners' Capital	596,803
Common Units [Member] \| Limited Partner [Member] \| Western Refining, Inc. [Member]
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Partners' Capital	(132,802)
Unit-based compensation	0
Conversion of subordinated units	(367,766)
Distribution Made to Limited Partner, Cash Distributions Declared	(4,028)
Net Income (Loss) Allocated to Limited Partners	5,111
Partners' Capital	(499,485)
Subordinated Units [Member]
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Distribution Made to Limited Partner, Cash Distributions Declared	(9,979)	$ (8,954)
Subordinated Units [Member] \| Limited Partner [Member] \| Western Refining, Inc. [Member]
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Partners' Capital	(363,132)
Unit-based compensation	0
Conversion of subordinated units	367,766
Distribution Made to Limited Partner, Cash Distributions Declared	(9,979)
Net Income (Loss) Allocated to Limited Partners	5,345
Partners' Capital	$ 0

Amount of equity impact of cash distribution declared to unit-holder of limited partnership (LP).

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 272
-SubTopic 10
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6373374&loc=d3e70434-108055

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 272
-SubTopic 10
-Section 50
-Paragraph 3
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=6373374&loc=d3e70478-108055

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.3-04)
-URI http://asc.fasb.org/extlink&oid=27012166&loc=d3e187085-122770

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Aggregate amount of net income allocated to limited partners.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section S99
-Paragraph 5
-URI http://asc.fasb.org/extlink&oid=27012166&loc=d3e187171-122770

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The amount of ownership interest of different classes of partners in limited partnership.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 272
-SubTopic 10
-Section 50
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-URI http://asc.fasb.org/extlink&oid=6373374&loc=d3e70478-108055

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-Publisher FASB
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-SubTopic 10
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6373374&loc=d3e70434-108055

Reference 3: http://www.xbrl.org/2003/role/presentationRef
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Total change in each class of partners' capital accounts during the year due to exchanges and conversions. Partners include general, limited and preferred partners.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
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-Topic 505
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Amount of increase (decrease) in partners' capital classified as other.

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