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Investments - Gross Gains (Losses) Realized On Sales Of Investments (Details) - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022
Fixed maturity securities |  |  |
Gross Realized Gains | $ 1,067 | $ 1,783 | $ 863
Gross Realized Losses | (3,812) | (3,246) | (71,425)
Net | (2,745) | (1,463) | (70,562)
Equity securities |  |  |
Gross Realized Gains | 96,927 | 76,844 | 86,168
Gross Realized Losses | (33,857) | (91,109) | (61,252)
Net | 63,070 | (14,265) | 24,916
Short-term investments |  |  |
Gross Realized Gains | 13 | 0 | 8
Gross Realized Losses | (727) | (4) | (2,500)
Net | $ (714) | $ (4) | $ (2,492)

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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 -Topic 320 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 9 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147481800/320-10-50-9 + Details
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