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Due from Affiliate, Noncurrent, Secured By Property, Plant, And Equipment

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Due from Affiliate, Noncurrent, Unsecured

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Equity Method Investments, Number of Purchase Agreements

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Investments in parties associated with the reporting entity net of guarantees to be paid by the reporting entity (which are included as liabilities on the balance sheet).

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Length of Pipeline

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The maximum exposure to loss (i.e. risk) to the reporting entity should the affiliates (the parties associated with the reporting entity) become unable to continue operations.

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The amount of net investments in, and advances to unconsolidated affiliates reported by an equity method investment of the entity.

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Amounts due from parties associated with the reporting entity as evidenced by a written promise to pay.

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Number of Investments Owned

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Percentage of voting equity interests acquired at the acquisition date in the business combination.

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Amount of consideration transferred, consisting of acquisition-date fair value of assets transferred by the acquirer, liabilities incurred by the acquirer, and equity interest issued by the acquirer.

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Amount of tangible or intangible assets, including a business or subsidiary of the acquirer transferred by the entity to the former owners of the acquiree. Excludes cash.

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Contractual interest rate for funds borrowed, under the debt agreement.

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The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting.

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Amounts due from parties associated with the reporting entity as evidenced by a written promise to pay, due within 1 year (or 1 business cycle).

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AFFILIATIONS AND DISCONTINUED OPERATIONS (Details) $ in Thousands		3 Months Ended
	Dec. 31, 2015 USD ($) investment agreement	Mar. 31, 2016 USD ($) mi	Mar. 31, 2015 USD ($)
Affiliations [Abstract]
Notes receivable - affiliate	$ 16,400	$ 14,800
Notes receivable - affiliate, current	$ 3,134	$ 1,508
Length of pipeline (in miles) \| mi		100
Investments in unconsolidated affiliates		$ 1,500	$ 1,700
Notes secured by property, plant and equipment of affiliates		$ 13,700
Interest accrual on secured notes receivable		7.50%
Due from affiliate, non-current and unsecured		$ 1,100
Net asset - included in investment in affiliates and other noncurrent liabilities		20,300
Combined equity contributions and the notes receivable - affiliate		$ 35,100
Energenic US LLC
Affiliations [Abstract]
Equity interest (as percent)		50.00%
Energenic US LLC \| Marina Energy LLC
Affiliations [Abstract]
Number of purchase agreements \| agreement	2
Number of investments owned \| investment	8
Notes receivable - affiliate	$ 19,500
Notes receivable - affiliate, current		$ 1,800
Percentage of voting interests	100.00%
Total consideration transferred	$ 46,000
Fair value of interest exchanged	$ 14,500
Energenic US LLC \| Marina Energy LLC \| Co-venturer
Affiliations [Abstract]
Number of investments owned \| investment	7
Fair value of interest exchanged	$ 31,500
Potato Creek, LLC (Potato Creek)
Affiliations [Abstract]
Equity interest (as percent)		30.00%
PennEast Pipeline Company, LLC (PennEast)
Affiliations [Abstract]
Equity interest (as percent)		20.00%
Length of pipeline (in miles) \| mi		100