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Fair Value Option (Tables) | 3 Months Ended
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Mar. 31, 2017
Fair Value Option [Abstract] |
Gains And Losses Due To Changes In Fair Value Of Investments | The following table presents gains due to changes in fair value of investments that are measured at fair value pursuant to the application of the fair value option:
| Three Months Ended March 31,
| 2017 |  | 2016
| (Amounts in thousands)
Fixed maturity securities | $ | 10,288 |  |  | $ | 11,563 |
Equity securities | 11,541 |  |  | 6,907 |
Short-term investments | 28 |  |  | 61 |
Total | $ | 21,857 |  |  | $ | 18,531 |

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- Definition Fair Value Option [Abstract] + References No definition available. + Details
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- Definition Tabular disclosure of unrealized gains and losses on investments. + References No definition available. + Details
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