v3.5.0.2

LONG-TERM DEBT - Additional Information (Details) - USD ($) $ in Thousands				2 Months Ended	3 Months Ended		7 Months Ended	9 Months Ended
	Aug. 04, 2016	Apr. 01, 2016	Feb. 27, 2015	Feb. 28, 2015	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015	Dec. 31, 2015	Nov. 15, 2013
Long-Term Debt
Draw from credit facility to finance cash consideration								$ 15,000
Cash payment for contributed assets									$ 99,500
Financing costs expense									346
Interest expense					$ 3,979	$ 1,973		10,133	8,671
Amount of debt that will become due and payable if the Partnership remains out of compliance with all of the restrictive covenants under the Credit Agreement					173,500			173,500
Amortization of deferred financing costs								1,692	$ 1,001
Azure Credit Agreement
Long-Term Debt
Interest expense				$ 2,300
Weighted average interest rate				6.50%
Allocated weighted average long-term debt				$ 192,000
Amortization of deferred financing costs				$ 300
Settlement Agreement with AES and NuDevco
Long-Term Debt
Proceeds from issuance of letter of credit, used to pay down debt under Credit Agreement		$ 15,000
ETG System | Azure Credit Agreement
Long-Term Debt
Interest expense							$ 1,700
Allocated weighted average long-term debt							54,400
Amortization of deferred financing costs							200
Revolving Credit Facility | Credit Agreement
Long-Term Debt
Interest expense					3,300	$ 1,800	$ 4,100	8,400
Maximum borrowing capacity					173,700			173,700
Deferred loan costs					1,569			1,569		$ 3,261
Long-term debt					$ 171,943			$ 171,943		$ 228,474
Revolving Credit Facility | Azure | Azure Credit Agreement
Long-Term Debt
Long-term debt											$ 50,000
Revolving Credit Facility | LIBOR | Minimum | Credit Agreement
Long-Term Debt
Debt instrument, basis spread on variable rate			3.25%
Revolving Credit Facility | LIBOR | Maximum | Credit Agreement
Long-Term Debt
Debt instrument, basis spread on variable rate			4.25%
Revolving Credit Facility | Base Rate | Minimum | Credit Agreement
Long-Term Debt
Debt instrument, basis spread on variable rate			2.25%
Revolving Credit Facility | Base Rate | Maximum | Credit Agreement
Long-Term Debt
Debt instrument, basis spread on variable rate			3.25%
Term Loan | Azure | Azure Credit Agreement
Long-Term Debt
Long-term debt											$ 550,000
Panola I Processing Plant and Murvaul Pipeline | Disposed of by Sale, Not Discontinued Operations
Long-Term Debt
Proceeds from the sales of assets used to pay down debt under the senior secured revolving credit facility (the "Credit Agreement")	$ 41,000

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The cash payment portion of the aggregate consideration, consisting of cash and the issuance of IDR units, transferred in exchange for the contribution of the legacy system to the entity, in a transaction that was not accounted for as a business combination since it is considered to be the predecessor of the entity.

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The amount of debt that will become due if the Partnership remains out of compliance with all of the restrictive covenants contained in the Credit Agreement unless those requirements are waived or amended.

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Amount of noncash expense included in interest expense to issue debt and obtain financing associated with the related debt instruments. Alternate captions include noncash interest expense.

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Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

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Carrying amount of long-term debt, net of unamortized discount or premium, including current and noncurrent amounts. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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