|
Income Taxes Income Taxes (Unrecognized Tax Benefits) (Details) (Details) (USD $)
In Thousands, unless otherwise specified |
12 Months Ended | |
|---|---|---|
|
Dec. 31, 2013
|
Dec. 31, 2012
|
|
| Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns [Roll Forward] | ||
| Balance at beginning of year | $ 19,184 | $ 8,376 |
| Additions based on current year tax positions | 2,365 | 10,808 |
| Balance at end of year | $ 21,549 | $ 19,184 |