|
Investments (Details 7) (USD $)
In Thousands, unless otherwise specified |
Jun. 30, 2012
|
Dec. 31, 2011
|
|---|---|---|
| Gross mortgage loan principal outstanding and allowance for potential future losses | ||
| Principal outstanding | $ 582,017 | $ 604,772 |
| Allowance for potential future losses | (2,517) | (2,849) |
| Carrying value | $ 579,500 | $ 601,923 |