Amount, after accumulated amortization, of derivative instruments premium.

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Nominal ceiling volume used to calculate payments on a derivative instrument.

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No definition available.

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Nominal floor volume used to calculate payments on a derivative instrument.

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No definition available.

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The average cap rate on a group of price risk derivatives such as caps or collars. A payment or receipt is triggered if the market rate exceeds the cap rate on the contract.

+ References

No definition available.

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The average floor rate on a group of price risk derivatives such as floors or collars. A payment or receipt is triggered if the market rate falls below the floor rate on the contract.

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No definition available.

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Fair value, before effects of master netting arrangements, of a financial asset or other 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 assets elected not to be offset. Excludes assets not subject to a master netting arrangement.

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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.

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Nominal number of units used to calculate payment on derivative.

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Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
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Nominal volume used to calculate payments on a derivative instrument.

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- Definition

Average fixed price related to the group of price risk swap derivatives.

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No definition available.

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Derivative Instruments - Commodity derivatives (Details) $ in Thousands	9 Months Ended
	Sep. 30, 2019 MMBTU / d $ / MMBTU bbl gal	Sep. 30, 2019 $ / gal	Sep. 30, 2019 $ / MMBTU	Sep. 30, 2019 $ / bbl	Sep. 30, 2019 USD ($)	Dec. 31, 2018 USD ($)
Derivatives not designated as hedges for accounting purposes \| NYMEX \| Three months ending December 31, 2019
Derivative Instruments
Ceiling \| MMBTU / d	1,575,000
Floor \| $ / MMBTU	1,333,234
Weighted average index price ceiling price \| $ / MMBTU			3.52
Weighted average index price floor price \| $ / MMBTU			2.50
Commodity derivative
Derivative Instruments
Gross amounts on balance sheet \| $					$ 838,795	$ 658,830
Commodity derivative \| Derivatives not designated as hedges for accounting purposes
Derivative Instruments
Gross amounts on balance sheet \| $					13,000
Unamortized portion of premium \| $					$ 4,500
Swaps \| NYMEX \| Three months ending December 31, 2019
Derivative Instruments
Weighted average index price \| $ / MMBTU			3.23
Swaps \| NYMEX \| Year ending December 31, 2020
Derivative Instruments
Weighted average index price \| $ / MMBTU			2.87
Swaps \| NYMEX \| Year Ending December 31, 2021
Derivative Instruments
Weighted average index price \| $ / MMBTU			2.79
Swaps \| NYMEX \| Year ending December 31, 2022
Derivative Instruments
Weighted average index price \| $ / MMBTU			2.96
Swaps \| NYMEX \| Year ending December 31, 2023
Derivative Instruments
Weighted average index price \| $ / MMBTU			2.91
Swaps \| ARA Propane \| Three months ending December 31, 2019
Derivative Instruments
Weighted average index price		0.81		0.68
Swaps \| ARA Propane \| Year ending December 31, 2020
Derivative Instruments
Weighted average index price		0.81		0.65
Swaps \| FEI Propane \| Three months ending December 31, 2019
Derivative Instruments
Weighted average index price \| $ / gal		0.50
Swaps \| FEI Propane \| Year ending December 31, 2020
Derivative Instruments
Weighted average index price \| $ / gal		0.57
Swaps \| Mont Belvieu Propane Non-TET \| Three months ending December 31, 2019
Derivative Instruments
Weighted average index price \| $ / gal		0.59
Swaps \| Mont Belvieu Butane Non-TET \| Three months ending December 31, 2019
Derivative Instruments
Weighted average index price \| $ / gal		1.14
Swaps \| NYMEX-WTI \| Three months ending December 31, 2019
Derivative Instruments
Weighted average index price \| $ / gal		59.05
Swaps \| NYMEX-WTI \| Year ending December 31, 2020
Derivative Instruments
Weighted average index price \| $ / gal		56.60
Swaps \| Natural gas \| Three months ending December 31, 2019
Derivative Instruments
Notional amount (MMBtu/day) \| MMBTU / d	996,766
Swaps \| Natural gas \| Year ending December 31, 2020
Derivative Instruments
Notional amount (MMBtu/day) \| MMBTU / d	2,227,500
Swaps \| Natural gas \| NYMEX \| Three months ending December 31, 2019
Derivative Instruments
Notional amount (MMBtu/day) \| MMBTU / d	996,766
Swaps \| Natural gas \| NYMEX \| Year ending December 31, 2020
Derivative Instruments
Notional amount (MMBtu/day) \| MMBTU / d	2,227,500
Swaps \| Natural gas \| NYMEX \| Year Ending December 31, 2021
Derivative Instruments
Notional amount (MMBtu/day) \| MMBTU / d	2,110,000
Swaps \| Natural gas \| NYMEX \| Year ending December 31, 2022
Derivative Instruments
Notional amount (MMBtu/day) \| MMBTU / d	290,000
Swaps \| Natural gas \| NYMEX \| Year ending December 31, 2023
Derivative Instruments
Notional amount (MMBtu/day) \| MMBTU / d	90,000
Swaps \| Natural gas liquids \| Three months ending December 31, 2019
Derivative Instruments
Notional amount	35,422
Swaps \| Natural gas liquids \| Year ending December 31, 2020
Derivative Instruments
Notional amount	13,806
Swaps \| Natural gas liquids \| ARA Propane \| Three months ending December 31, 2019
Derivative Instruments
Notional amount	10,113
Swaps \| Natural gas liquids \| ARA Propane \| Year ending December 31, 2020
Derivative Instruments
Notional amount	9,761
Swaps \| Natural gas liquids \| FEI Propane \| Three months ending December 31, 2019
Derivative Instruments
Notional amount	9,809
Swaps \| Natural gas liquids \| FEI Propane \| Year ending December 31, 2020
Derivative Instruments
Notional amount	2,045
Swaps \| Natural gas liquids \| Mont Belvieu Propane Non-TET \| Three months ending December 31, 2019
Derivative Instruments
Notional amount	8,000
Swaps \| Natural gas liquids \| Mont Belvieu Butane Non-TET \| Three months ending December 31, 2019
Derivative Instruments
Notional amount	4,000
Swaps \| Natural gas liquids \| Mont Belvieu Butane Non-TET \| Year ending December 31, 2020
Derivative Instruments
Notional amount	2,000
Swaps \| Natural gas liquids \| Mont Belvieu Natural Gasoline Non-TET \| Three months ending December 31, 2019
Derivative Instruments
Notional amount	3,500
Swaps \| Oil \| Three months ending December 31, 2019
Derivative Instruments
Notional amount \| gal	18,000
Swaps \| Oil \| Year ending December 31, 2020
Derivative Instruments
Notional amount \| gal	12,000
Swaps \| Oil \| NYMEX-WTI \| Three months ending December 31, 2019
Derivative Instruments
Notional amount \| gal	18,000
Swaps \| Oil \| NYMEX-WTI \| Year ending December 31, 2020
Derivative Instruments
Notional amount \| gal	12,000