Equity (Tables)

9 Months Ended

Sep. 30, 2016

Equity [Abstract]

Schedule of Stockholders Equity [Table Text Block]

Changes to equity during the nine months ended September 30, 2016, were as follows:

	Division			General			TexNew Mex -			Common -			Common -			Subordinated -
	Equity			Partner			Western			Public			Western			Western			Total
	(In thousands)
Balance at December 31, 2015	$	108,013		$	(1,085	)	$	(310	)	$	327,351		$	(105,090	)	$	(289,289	)	$	39,590
Unit-based compensation	—			—			—			1,465			—			—			1,465
Issuance of common units	—			—			—			277,751			—			—			277,751
Offering costs for issuance of common units	—			—			—			(477		)	—			—			(477		)
Net loss attributable to General Partner	(23,309		)	—			—			—			—			—			(23,309		)
Contributions from affiliate	20,286			—			—			—			—			—			20,286
Allocation of net investment of St. Paul Park Logistics Transaction	(104,990		)	—			—			—			28,696			76,294			—
Consideration paid for St. Paul Park Logistics Transaction	—			—			—			—			(53,235		)	(141,765		)	(195,000		)
Distributions to partners declared	—			(2,857		)	—			(21,006		)	(10,360		)	(27,544		)	(61,767		)
Net income attributable to limited partners	—			—			—			16,907			7,942			21,055			45,904
Balance at September 30, 2016	$	—		$	(3,942	)	$	(310	)	$	601,991		$	(132,047	)	$	(361,249	)	$	104,443

Schedule of Incentive Distributions Made to Managing Members or General Partners by Distribution [Table Text Block]

no arrearages on common units.

	Total Quarterly Distribution per Unit Target Amount	Marginal Percentage Interest in Distributions
		Unitholders		General Partner
Minimum Quarterly Distribution	$0.2875	100.0	%	—
First Target Distribution	above $0.2875 up to $0.3306	100.0	%	—
Second Target Distribution	above $0.3306 up to $0.3594	85.0	%	15.0	%
Third Target Distribution	above $0.3594 up to $0.4313	75.0	%	25.0	%
Thereafter	above $0.4313	50.0	%	50.0	%

Distributions Made to Limited Partner, by Distribution [Table Text Block]

2016 quarterly distribution declarations, payments and scheduled payments:

Declaration Date	Record Date	Payment Date	Distribution per Common and Subordinated Unit
February 1, 2016	February 11, 2016	February 26, 2016	$	0.3925
April 25, 2016	May 13, 2016	May 27, 2016	0.4025
July 26, 2016	August 12, 2016	August 26, 2016	0.4125
October 24, 2016	November 7, 2016	November 23, 2016	0.4225
Total			$	1.6300

During 2015 and 2016, we declared and paid distributions that were in excess of the target distribution amounts set forth in our partnership agreement, resulting in distributions to our General Partner as the holder of incentive distribution rights. The total quarterly cash distributions for the three and nine months ended September 30, 2016 and 2015, respectively, were as follows:

	Three Months Ended				Nine Months Ended
	September 30,				September 30,
	2016		2015		2016		2015
	(In thousands, except per unit data)
TexNew Mex Unit distributions:
TexNew Mex Unit distributions	$	—	$	—	$	310	$	—
Total TexNew Mex Unit distributions	$	—	$	—	$	310	$	—
General Partners' distributions:
General Partner's incentive distribution rights	$	1,175	$	326	$	2,857	$	481
Total General Partner's distributions	$	1,175	$	326	$	2,857	$	481
Limited partners' distributions:
Common	$	11,913	$	8,766	$	31,366	$	25,086
Subordinated	9,409		8,326		27,544		23,838
Total limited partners' distributions	21,322		17,092		58,910		48,924
Total cash distributions	$	22,497	$	17,418	$	62,077	$	49,405
Cash distributions per limited partner unit	$	0.4125	$	0.3650	$	1.2075	$	1.0450