Income Taxes (Narrative) (Details) - USD ($) $ in Thousands |
12 Months Ended | ||
|---|---|---|---|
Dec. 31, 2016 |
Dec. 31, 2015 |
Dec. 31, 2014 |
|
| Income Taxes [Abstract] | |||
| Statutory income tax rate, percent | 35.00% | 35.00% | 35.00% |
| Deferred tax assets, valuation allowance | $ 140,192 | $ 108,843 | |
| Cummulative loss incurred, period | 3 years | ||
| X | ||||||||||
- Definition Cumulative Loss Incurred Period No definition available.
|
| X | ||||||||||
- 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
|
| X | ||||||||||
- Definition Percentage of domestic federal statutory tax rate applicable to pretax income (loss). Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- References No definition available.
|