|
Income Taxes (Reconciliation of Federal Statutory Income Tax Rate) (Details) (USD $)
In Thousands, unless otherwise specified |
12 Months Ended | ||
|---|---|---|---|
|
Dec. 31, 2014
|
Dec. 31, 2013
|
Dec. 31, 2012
|
|
| Income Tax Disclosure [Abstract] | |||
| Tax at statutory rate | $ (7,713) | $ (38,821) | $ (41,291) |
| State taxes, net of federal benefit | (375) | (6,399) | (4,868) |
| Change in valuation allowance | (640) | 216,586 | 668 |
| Federal and state net operating losses, (addition) removal of limitations | (2,882) | (173,288) | 42,121 |
| Share-based compensation | 4,366 | 2,761 | 2,597 |
| Credits and other | (432) | (2,192) | 89 |
| Income tax benefit | $ (7,676) | $ (1,353) | $ (684) |