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Fair Value Option (Tables) | 6 Months Ended
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Jun. 30, 2013
Fair Value Option [Abstract] |
Gains And Losses Due To Changes In Fair Value Of Investments | The following table presents (losses) gains due to changes in fair value of investments that are measured at fair value pursuant to application of the fair value option:
| Three Months Ended June 30, |  | Six Months Ended June 30,
| 2013 |  | 2012 |  | 2013 |  | 2012
| (Amounts in thousands)
Fixed maturity securities | $ | (59,562 | ) |  | $ | 9,812 |  |  | $ | (69,973 | ) |  | $ | 30,815 |
Equity securities | (19,003 | ) |  | (33,972 | ) |  | 35,023 |  |  | (5,476 | )
Short-term investments | (161 | ) |  | (628 | ) |  | (309 | ) |  | (784 | )
Total | $ | (78,726 | ) |  | $ | (24,788 | ) |  | $ | (35,259 | ) |  | $ | 24,555 |

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- Definition Tabular disclosure of unrealized gains and losses on investments. + References No definition available. + Details
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