Income Taxes (Narrative) (Details) - USD ($) |
3 Months Ended | 6 Months Ended | |
|---|---|---|---|
Jun. 30, 2020 |
Jun. 30, 2020 |
Jun. 30, 2019 |
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| Income Taxes [Line Items] | |||
| Effective income tax rate | (56.00%) | 79.00% | |
| Change in valuation allowance | $ (4,100,000) | $ 42,800,000 | |
| 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 Income Taxes [Line Items] No definition available.
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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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