Number of Active Counterparties with Whom Company Holds Net Gain Positions

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- Definition

Number of Active Counterparties with Whom Company Holds Net Loss Positions

+ References

No definition available.

+ Details

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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.

+ Details

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- Definition

Aggregate net gain (loss) on all derivative instruments recognized in earnings during the period, before tax effects.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 815

-SubTopic 10

-Section 50

-Paragraph 4A

-Subparagraph (b)

-URI http://asc.fasb.org/extlink&oid=56946850&loc=SL5618551-113959

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Derivative Commodity Instruments - Additional Information (Details) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015 USD ($) counterparty	Jun. 30, 2014 USD ($)	Jun. 30, 2015 USD ($) counterparty	Jun. 30, 2014 USD ($)
Derivative [Line Items]
Number of Active Counterparties with Whom Company Holds Net Gain Positions \| counterparty	12		12
Number of Active Counterparties with Whom Company Holds Net Loss Positions \| counterparty	2		2
Gain (Loss) on fair value of derivatives	$ (50,964)	$ (84,846)	$ (16,928)	$ (138,237)
Commodity contracts
Derivative [Line Items]
Gain (Loss) on fair value of derivatives	$ (50,964)	$ (84,846)	(16,928)	$ (138,237)
Commodity contracts \| J.P Morgan Ventures Energy Corporation
Derivative [Line Items]
Gain (Loss) on fair value of derivatives			28,300
Commodity contracts \| Merrill Lynch Commodities, Inc.
Derivative [Line Items]
Gain (Loss) on fair value of derivatives			23,600
Commodity contracts \| Canadian Imperial Bank of Commerce
Derivative [Line Items]
Gain (Loss) on fair value of derivatives			17,300
Commodity contracts \| Bank of Montreal
Derivative [Line Items]
Gain (Loss) on fair value of derivatives			16,400
Commodity contracts \| Morgan Stanley Capital Group Inc
Derivative [Line Items]
Gain (Loss) on fair value of derivatives			$ 15,700