Income Taxes (Narrative) (Details) - USD ($) $ in Thousands |
12 Months Ended | |||
|---|---|---|---|---|
Dec. 31, 2018 |
Dec. 31, 2017 |
Dec. 31, 2016 |
Dec. 31, 2015 |
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| Income Taxes [Line Items] | ||||
| Interest or penalties accrued | $ 0 | $ 0 | ||
| Net deferred tax assets | 1,260 | |||
| Alternative minimum tax credit | 1,349 | 1,349 | ||
| Valuation allowance | $ 153,205 | $ 211,767 | $ 210,700 | |
| U.S. corporate income tax rate | 35.00% | |||
| Scenario, Plan [Member] | ||||
| Income Taxes [Line Items] | ||||
| U.S. corporate income tax rate | 21.00% | |||
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- Definition Income Taxes [Line Items] No definition available.
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- Definition Amount, after allocation of valuation allowances and deferred tax liability, of deferred tax asset attributable to deductible differences and carryforwards, without jurisdictional netting. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Amount before allocation of valuation allowances of deferred tax asset attributable to deductible alternative minimum tax credit carryforwards. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Amount of deferred tax assets for which it is more likely than not that a tax benefit will not be realized. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Percentage of domestic federal statutory tax rate applicable to pretax income (loss). Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition The amount of estimated penalties and interest accrued as of the balance sheet date arising from income tax examinations. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Details
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