|
Income Taxes (Details Textual) (USD $)
In Thousands, unless otherwise specified |
12 Months Ended | ||
|---|---|---|---|
|
Dec. 31, 2012
|
Dec. 31, 2011
|
Dec. 31, 2010
|
|
| Income Tax Disclosure [Abstract] | |||
| Decrease in valuation allowance | $ 3,350,905 | ||
| Operating loss carryforwards, exclusive of excess share-based compensation deductions | 6,571,519 | ||
| Valuation allowance related to excess share-based compensation deductions | 599,153 | ||
| Operating loss carryforwards, per tax return | 7,170,672 | ||
| Operating loss carryforwards, tax effected | 2,493,239 | ||
| Valuation allowance | 9,835 | 3,360,740 | |
| Uncertain state tax positions in other long term liabilities | 1,432 | 1,432 | 942 |
| Accrued interest on unrecognized tax benefits | $ 55 | $ 92 | |
| X | ||||||||||
|
- Definition
Deferred Tax Assets, Valuation Allowance, Excess Share Based Compensation Deductions No definition available.
|
| X | ||||||||||
|
- Definition
Operating Loss Carryforwards, Exclusive of Excess Share-based Compensation Deductions No definition available.
|
| X | ||||||||||
|
- Definition
Operating Loss Carryforwards, Per Tax Return No definition available.
|
| X | ||||||||||
|
- Definition
Operating Loss Carryforwards, Tax Effected No definition available.
|
| X | ||||||||||
|
- Definition
Unrecognized tax benefits increase resulting from interest. No definition available.
|
| X | ||||||||||
|
- Definition
Valuation Allowance, Change in Amount 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 | ||||||||||
|
- Details
|
| X | ||||||||||
|
- Definition
The gross amount of unrecognized tax benefits pertaining to uncertain tax positions taken in tax returns as of the balance sheet date. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|