Financial Instruments - Schedule of Contracted Volumes and Weighted Average Prices and will Receive Under Derivative Contracts (Details)	1 Months Ended	9 Months Ended
Nov. 07, 2018 $ / bbl bbl	Sep. 30, 2018 MMBTU $ / bbl $ / MMBTU bbl
October 2018 - December 2018 \| Henry Hub \| NYMEX \| Swap
Average Sales Price And Production Costs Per Unit Of Production [Line Items]
Instrument Type		Swap
Average Daily Volumes \| MMBTU		29,165
Weighted Average Swap Price \| $ / MMBTU		3.01
October 2018 - December 2018 \| Henry Hub \| NYMEX \| Collar
Average Sales Price And Production Costs Per Unit Of Production [Line Items]
Instrument Type		Collar
Average Daily Volumes \| MMBTU		6,000
Weighted Average Put Price		2.75
Weighted Average Call Price		3.24
January 2019 - December 2019 \| Henry Hub \| NYMEX \| Swap
Average Sales Price And Production Costs Per Unit Of Production [Line Items]
Instrument Type		Swap
Average Daily Volumes \| bbl		10,146
Weighted Average Swap Price		2.99
Crude Oil \| WTI \| October 2018 - December 2018 \| Puts
Average Sales Price And Production Costs Per Unit Of Production [Line Items]
Instrument Type		Puts
Average Daily Volumes \| bbl		2,000
Weighted Average Put Price		49.50
Crude Oil \| WTI \| October 2018 - December 2018 \| Swap
Average Sales Price And Production Costs Per Unit Of Production [Line Items]
Instrument Type		Swap
Average Daily Volumes \| bbl		31,340
Weighted Average Swap Price		54.07
Crude Oil \| WTI \| October 2018 - December 2018 \| Collar
Average Sales Price And Production Costs Per Unit Of Production [Line Items]
Instrument Type		Collar
Average Daily Volumes \| bbl		1,000
Weighted Average Put Price		45.00
Weighted Average Call Price		55.35
Crude Oil \| WTI \| January 2019 - December 2019 \| Swap
Average Sales Price And Production Costs Per Unit Of Production [Line Items]
Instrument Type		Swap
Average Daily Volumes \| bbl		24,558
Weighted Average Swap Price		55.01
Crude Oil \| WTI \| April 2019 - June 2019 \| Swap \| Subsequent Event
Average Sales Price And Production Costs Per Unit Of Production [Line Items]
Instrument Type	Swap
Average Daily Volumes \| bbl	1,000
Weighted Average Swap Price	74.12
Crude Oil \| WTI \| July 2019 - September 2019 \| Swap \| Subsequent Event
Average Sales Price And Production Costs Per Unit Of Production [Line Items]
Instrument Type	Swap
Average Daily Volumes \| bbl	1,000
Weighted Average Swap Price	73.10

Derivative Weighted Average Strike Price Call Options.

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- Definition

Derivative Weighted Average Strike Price Put Options.

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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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- Definition

Nominal energy measure used to calculate payments on a derivative instrument.

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Nominal volume used to calculate payments on a derivative instrument.

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- Definition

Average variable price rate related to the group of price risk swap derivatives.

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- Definition

Description of the type of derivative instrument, such as a swap, forward, and option. Excludes the underlying risk of the instrument.

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