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Summary of Significant Accounting Policies (Details Textual) - USD ($) shares in Millions | 3 Months Ended
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Mar. 31, 2020 | Mar. 31, 2019
New Accounting Pronouncements or Change in Accounting Principle [Line Items] |  |
Discount rate, present value of future revenue | 10.00% |
Impairment charges | $ 0 | $ 0
Capitalized general and administrative costs | 8,200,000 | 8,400,000
Interest costs capitalized | $ 1,400,000 | $ 1,600,000
Options |  |
New Accounting Pronouncements or Change in Accounting Principle [Line Items] |  |
Antidilutive securities (in shares) | 2.7 | 2.8
Restricted Stock Units (RSUs) |  |
New Accounting Pronouncements or Change in Accounting Principle [Line Items] |  |
Antidilutive securities (in shares) |  | 0.4
Restricted Stock |  |
New Accounting Pronouncements or Change in Accounting Principle [Line Items] |  |
Antidilutive securities (in shares) |  | 0.8

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- Definition Capitalized general and administrative costs. + References No definition available. + Details
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- Definition Discounting rate present value of future revenue from proved oil and gas reserves. + References No definition available. + Details
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- Definition Securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) or earnings per unit (EPU) in the future that were not included in the computation of diluted EPS or EPU because to do so would increase EPS or EPU amounts or decrease loss per share or unit amounts for the period presented. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257 + Details
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- Definition The expense recorded to reduce the value of oil and gas assets consisting of proved properties and unproved properties as the estimate of future successful production from these properties is reduced. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=109226691&loc=d3e2921-110230 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=118932676&loc=d3e3602-108585 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 932 -SubTopic 360 -Section 35 -Paragraph 11 -URI http://asc.fasb.org/extlink&oid=66906256&loc=d3e66150-109466 + Details
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- Definition Amount of interest capitalized during the period. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6450988&loc=d3e26243-108391 + Details
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