Income Taxes (Narrative) (Details) - USD ($) |
3 Months Ended | 6 Months Ended | ||
|---|---|---|---|---|
Jun. 30, 2021 |
Jun. 30, 2020 |
Jun. 30, 2021 |
Jun. 30, 2020 |
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| Income Taxes [Line Items] | ||||
| Effective income tax rate | 40.60% | (56.00%) | ||
| Change in valuation allowance | $ (7,000,000.0) | |||
| Current tax expense | $ 6,148,000 | $ 1,046,000 | 9,583,000 | $ (517,000) |
| Favorable oil price adjustment | 1,000,000.0 | 1,500,000 | ||
| Current tax expense, net of favorable oil price adjustment | $ 5,100,000 | 8,100,000 | ||
| 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://www.xbrl.org/2009/role/commonPracticeRef
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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://www.xbrl.org/2003/role/disclosureRef
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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://www.xbrl.org/2009/role/commonPracticeRef
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- Definition Amount of increase (decrease) in the valuation allowance for a specified deferred tax asset. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Details
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