|
Income Taxes (Narrative) (Details) (USD $)
|
12 Months Ended | ||
|---|---|---|---|
|
Dec. 31, 2013
|
Dec. 31, 2012
|
Dec. 31, 2011
|
|
| Federal tax benefits | $ (684,000) | $ (229,000) | $ (3,213,000) |
| Unrecognized Tax Benefits that Would Impact Effective Tax Rate | 21,500,000 | ||
| Unrecognized tax benefits | 21,549,000 | 19,184,000 | 8,376,000 |
|
Stock Compensation Plan [Member]
|
|||
| Operating loss carryforwards | 200,000,000 | ||
|
U.S. Federal [Member]
|
|||
| Operating loss carryforwards | 2,200,000,000 | ||
|
U.S. Federal [Member] | Minimum [Member]
|
|||
| Operating loss carryforwards, expiration dates | Dec. 31, 2021 | ||
|
U.S. Federal [Member] | Maximum [Member]
|
|||
| Operating loss carryforwards, expiration dates | Dec. 31, 2032 | ||
|
State [Member]
|
|||
| Operating loss carryforwards | 1,100,000,000 | ||
|
State [Member] | Minimum [Member]
|
|||
| Operating loss carryforwards, expiration dates | Dec. 31, 2013 | ||
|
State [Member] | Maximum [Member]
|
|||
| Operating loss carryforwards, expiration dates | Dec. 31, 2033 | ||
|
Foreign [Member]
|
|||
| Operating loss carryforwards | $ 100,000,000 | ||