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Investments (Components Of Net Realized and Unrealized Gains and Losses (Details) - USD ($) $ in Thousands | 3 Months Ended
--- | ---
Mar. 31, 2019 | Mar. 31, 2018
Gain (Loss) on Securities [Line Items] |  |  |
Total net realized gains on the disposal of securities (excluding OTTI charges) |  | $ 3,444 | $ 4,731
OTTI Charges |  | (104) | (1,212)
Net realized gains |  | 3,340 | 3,519
Unrealized gains (losses) recognized in income on equity securities | [1] | 10,111 | (14,068)
Net realized and unrealized gains (losses) |  | 13,451 | (10,549)
Unrealized holding gains (losses) on equity securities |  | 12,000 | (5,100)
Unrealized losses on equity securities sold during the period |  | (1,900) | (9,000)
Fixed Income Securities [Member] |  |  |
Gain (Loss) on Securities [Line Items] |  |  |
Net realized (losses) gains on disposals of securities, fixed income securities (excluding OTTI charges) |  | 1,143 | (3,335)
Equity Securities [Member] |  |  |
Gain (Loss) on Securities [Line Items] |  |  |
Total net realized gains on the disposal of securities (excluding OTTI charges) |  | 2,280 | 8,069
Short-Term Investments [Member] |  |  |
Gain (Loss) on Securities [Line Items] |  |  |
Total net realized gains on the disposal of securities (excluding OTTI charges) |  | 14 | (3)
Other Investments [Member] |  |  |
Gain (Loss) on Securities [Line Items] |  |  |
Total net realized gains on the disposal of securities (excluding OTTI charges) |  | $ 7 | $ 0
[1] | Includes unrealized holding gains (losses) of: (i) $12.0 million in First Quarter 2019 and $(5.1) million in First Quarter 2018 on equity securities remaining in our portfolio as of March 31, 2019 and 2018, respectively; and (ii) $(1.9) million in First Quarter 2019 and $(9.0) million in First Quarter 2018 on equity securities sold in each respective period.

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- Definition The unrealized gains (losses) on equity securities sold during the period. + References No definition available. + Details
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- Definition Aggregate net change in unrealized gains or losses on the equity portfolio recognized in net income for the period. + References No definition available. + Details
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- Definition Amount of unrealized and realized gain (loss) on investment in debt and equity securities. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03(9)(a)) -URI http://asc.fasb.org/extlink&oid=115205541&loc=SL114868664-224227 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03(7)(c)) -URI http://asc.fasb.org/extlink&oid=115205541&loc=SL114868664-224227 + Details
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