Equity (Distributions) (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended				6 Months Ended		9 Months Ended
	Sep. 30, 2017	Jun. 30, 2017	Mar. 31, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016	Sep. 30, 2017
Incentive Distribution Made to Managing Member or General Partner [Line Items]
Distribution Made to Limited Partner, Cash Distributions Declared					$ 60,172
Incentive Distribution, Distribution		$ 3,062		$ 921	5,209	$ 1,682
Distribution Made to Limited Partner, Cash Distributions Paid		28,327		19,039	54,963	37,588
Partners' Capital Account, Distributions		$ 31,389		$ 19,960	$ 60,172	$ 39,580
Distribution Made to Limited Partner, Distributions Declared, Per Unit		$ 0.4525	$ 0.4375	$ 0.4025	$ 0.8900	$ 0.7950
Subsequent Event [Member]
Incentive Distribution Made to Managing Member or General Partner [Line Items]
Distribution Made to Limited Partner, Distributions Declared, Per Unit							$ 1.3575
TexNew Mex Units [Member]
Incentive Distribution Made to Managing Member or General Partner [Line Items]
Distribution Made to Limited Partner, Cash Distributions Declared					$ 0
Distribution Made to Limited Partner, Cash Distributions Paid		$ 0		$ 0	0	$ 310
Common Units [Member]
Incentive Distribution Made to Managing Member or General Partner [Line Items]
Distribution Made to Limited Partner, Cash Distributions Paid		28,327		9,858	44,984	19,453
Subordinated Units [Member]
Incentive Distribution Made to Managing Member or General Partner [Line Items]
Distribution Made to Limited Partner, Cash Distributions Paid		$ 0		$ 9,181	$ 9,979	$ 18,135
Western Refining Logistics, LP [Member] | Subsequent Event [Member]
Incentive Distribution Made to Managing Member or General Partner [Line Items]
Distribution Made to Limited Partner, Distributions Declared, Per Unit	$ 0.4675