|
Investments (Proceeds From Sales And Realized Gains And Losses) (Details) (USD $)
In Thousands, unless otherwise specified |
3 Months Ended | |
|---|---|---|
|
Mar. 31, 2013
|
Mar. 31, 2012
|
|
| Investments [Abstract] | ||
| Proceeds | $ 35,136 | $ 10,454 |
| Realized gains | 412 | 663 |
| Realized losses | $ 162 | $ 64 |