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Fair Value Option (Tables) | 6 Months Ended
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Jun. 30, 2018
Fair Value Option [Abstract] |
Gains And Losses Due To Changes In Fair Value Of Investments | The following table presents gains (losses) due to changes in fair value of investments and the note receivable that are measured at fair value pursuant to the application of the fair value option:
| Three Months Ended June 30, |  | Six Months Ended June 30,
| 2018 |  | 2017 |  | 2018 |  | 2017
| (Amounts in thousands)
Fixed maturity securities | $ | 224 |  |  | $ | 25,622 |  |  | $ | (45,988 | ) |  | $ | 35,909 |
Equity securities | 8,533 |  |  | (5,080 | ) |  | (3,354 | ) |  | 6,462 |
Short-term investments | 44 |  |  | (267 | ) |  | (347 | ) |  | (240 | )
Total investments | $ | 8,801 |  |  | $ | 20,275 |  |  | $ | (49,689 | ) |  | $ | 42,131 |
Note receivable | (8 | ) |  | — |  |  | (49 | ) |  | — |
Total gains (losses) | $ | 8,793 |  |  | $ | 20,275 |  |  | $ | (49,738 | ) |  | $ | 42,131 |

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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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