Income Taxes (Narrative) (Details) - USD ($) |
3 Months Ended | |
|---|---|---|
Mar. 31, 2021 |
Mar. 31, 2020 |
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| Income Taxes [Line Items] | ||
| Effective income tax rate | (64.00%) | (68.00%) |
| Change in valuation allowance | $ (2,300,000) | |
| Current tax expense | 3,435,000 | $ (1,563,000) |
| Favorable oil price adjustment | 500,000 | |
| Current tax expense, net of favorable oil price adjustment | 2,900,000 | |
| Uncertain tax positions | $ 0 | |
| Authorities Other Than United States And Gabon [Member] | ||
| Income Taxes [Line Items] | ||
| Effective income tax rate | 0.00% | |
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- Definition Current Foreign Income Tax Expense (Benefit), Net Of Favorable Oil Price Adjustment No definition available.
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- Definition Income Tax Benefit, Favorable Oil Price Adjustment No definition available.
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- Definition Income Taxes [Line Items] No definition available.
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- Definition Amount of current foreign income tax expense (benefit) pertaining to income (loss) from continuing operations. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Percentage of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount of increase (decrease) in unrecognized tax benefits attributable to uncertain tax positions taken in tax returns. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount of increase (decrease) in the valuation allowance for a specified deferred tax asset. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Details
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