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Derivative Instruments - Narrative (Details) $ in Millions | 3 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2018 USD ($) $ / MMBTU bbl | Dec. 31, 2018 MMBTU $ / MMBTU
Derivative [Line Items] |  |
Derivative, extension option term |  | 12 months
Percentage of production under fixed price swaps |  | 78.00%
Fixed Price Swap 2019 |  |
Derivative [Line Items] |  |
Daily Volume (MMBtu/day) | MMBTU |  | 100,000
Weighted average price of derivative swap (usd per MMBtu or Bbls) | $ / MMBTU | 3.05 | 3.05
NYMEX West Texas Intermediate and ARGUS LLS - 2019 |  |
Derivative [Line Items] |  |
Daily Volume (Bbls/day) | bbl | 5,000 |
Loss on derivative | $ | $ 0.4 |

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- Definition Production Delivered Under Fixed Price Swaps, Percentage + 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 Amount of decrease in the fair value of derivatives recognized in the income statement. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4A -Subparagraph (b)(1) -URI http://asc.fasb.org/extlink&oid=109980867&loc=SL5618551-113959 + Details
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- Definition Nominal energy measure used to calculate payments on a derivative instrument. + References No definition available. + Details
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- Definition Nominal volume used to calculate payments on a derivative instrument. + References No definition available. + Details
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- Definition Average fixed price related to the group of price risk swap derivatives. + References No definition available. + Details
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- Details
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- Details
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