Commitment Term

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- Definition

Contract Asset

+ References

No definition available.

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Data Type:	xbrli:monetaryItemType
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Period Type:	instant

- Definition

Contract Asset, Amortization Term

+ References

No definition available.

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- Definition

Contract Asset, Current

+ References

No definition available.

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Period Type:	instant

- Definition

Initial Annual Minimum Volume Commitment

+ References

No definition available.

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

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- Definition

Fair value, before effects of master netting arrangements, of a financial liability or contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes liabilities elected not to be offset. Excludes liabilities not subject to a master netting arrangement.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
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- Definition

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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-Publisher FASB
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- Definition

Amount of increase (decrease) of investment in debt and equity securities, measured at fair value with changes in fair value recognized in net income.

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
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- Definition

The cash inflow associated with the sale of equity method investments, which are investments in joint ventures and entities in which the entity has an equity ownership interest normally of 20 to 50 percent and exercises significant influence.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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-Name Accounting Standards Codification
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-SubTopic 10
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-Paragraph 12
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-URI http://asc.fasb.org/extlink&oid=118932676&loc=d3e3179-108585

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- Definition

The net realized gains or losses on investments during the period, not including gains or losses on securities separately or otherwise categorized as trading, available-for-sale, or held-to-maturity.

+ References

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-Topic 944
-SubTopic 220
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-URI http://asc.fasb.org/extlink&oid=116637232&loc=SL114874131-224263

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- Definition

The number of shares issued or sold by the subsidiary or equity method investee per stock transaction.

+ References

No definition available.

+ Details

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Equitrans Share Exchange (Details) $ in Thousands		3 Months Ended
Equitrans Share Exchange (Details) $ in Thousands	Feb. 26, 2020 USD ($) shares Bcf	Mar. 31, 2020 USD ($)	Mar. 31, 2019 USD ($)	Dec. 31, 2019 USD ($)
Class of Stock
Cash received for Equitrans Share Exchange		$ 52,323	$ 0
Contract asset	$ 410,000
Contract asset, current	$ 26,700
Contract asset, term	4 years
Derivative instruments, at fair value		526,601		$ 312,696
Gain on Equitrans Share Exchange	$ 187,000	$ 187,223	$ 0
Henry hub cash bonus
Class of Stock
Derivative instruments, at fair value	$ 117,000
Equitrans Midstream
Class of Stock
Initial annual minimum volume commitment (in Bcf, Mbbls) \| Bcf	3.0
Commitment term (term)	36 months
Equitrans Midstream
Class of Stock
Sales of equity shares (shares) \| shares	25,299,752
Ownership percentage (percent)	50.00%	11.00%
Cash received for Equitrans Share Exchange	$ 52,000
Decrease in equity investments	$ 158,000