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Investments (Gross Gains And Losses Realized On Sales Of Investments) (Details) - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020
Investments [Abstract] |  |  |
Fixed maturity securities, Realized Gain | $ 863 | $ 2,306 | $ 1,884
Fixed maturity securities, Realized Loss | (71,425) | (6,690) | (4,296)
Fixed maturity securities, Realized Gain (Loss) | (70,562) | (4,384) | (2,412)
Equity securities, Realized Gain | 86,168 | 64,061 | 75,591
Equity securities, Realized Loss | (61,252) | (18,826) | (80,134)
Equity securities, Realized Gain (Loss) | 24,916 | 45,235 | (4,543)
Short-term investments, Realized Gain | 8 | 236 | 146
Short-term investments, Gross Realized Losses | (2,500) | (381) | (2,438)
Short-term investments, Realized Gain (Loss) | $ (2,492) | $ (145) | $ (2,292)

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- Definition Amount of realized gain on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale). + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 9 -Subparagraph (a) -URI https://asc.fasb.org/extlink&oid=126970911&loc=d3e27357-111563 + Details
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