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Income Taxes Income Taxes Details 7 (Details) - USD ($) $ in Thousands | 12 Months Ended |
--- | --- | ---
Dec. 31, 2017 | Dec. 31, 2016
Operating Loss Carryforwards [Line Items] |  |
Year One | $ 108,312 |
Year Two | 127,914 |
Year Three | 176,591 |
Year Four | 158,672 |
Thereafter | 3,239,757 |
Operating Loss Carryforwards | 3,811,246 |
Loss Carry Forwards, Unexpiring | 58,400 |
Loss and tax credit carry-forwards | 170,979 | $ 157,795
Valuation allowance | 141,154 | $ 132,500
Federal |  |
Operating Loss Carryforwards [Line Items] |  |
Year One | 0 |
Year Two | 0 |
Year Three | 0 |
Year Four | 0 |
Thereafter | 0 |
Operating Loss Carryforwards | 0 |
Loss and tax credit carry-forwards | 0 |
Valuation allowance | 0 |
State |  |
Operating Loss Carryforwards [Line Items] |  |
Year One | 108,312 |
Year Two | 127,914 |
Year Three | 176,591 |
Year Four | 158,672 |
Thereafter | 3,232,606 |
Operating Loss Carryforwards | 3,804,095 |
Valuation Allowance, Deferred Tax Asset, Increase (Decrease), Amount | 3,200 |
Loss and tax credit carry-forwards | 150,031 |
Valuation allowance | 104,637 |
Foreign |  |
Operating Loss Carryforwards [Line Items] |  |
Year One | 0 |
Year Two | 0 |
Year Three | 0 |
Year Four | 0 |
Thereafter | 7,151 |
Operating Loss Carryforwards | 7,151 |
Loss and tax credit carry-forwards | 20,948 |
Valuation allowance | $ 36,517 |

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- Definition The sum of the tax effects as of the balance sheet date of the amount of excesses of tax deductions over gross income in a year which cannot be used on the tax returns in the current year but can be carried forward to reduce taxable income or income taxes payable in a future year, for which there must be sufficient tax-basis income to utilize a portion or all of the carryforward amount to realize the deferred tax asset. The tax effect as of the balance sheet date of the amount of future tax deductions arising from all unused tax credit carryforwards. + References No definition available. + Details
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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. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=84230637&loc=d3e32537-109319 + Details
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