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Investments In Securities and Fair Value (Schedule Of Gross Realized Gains And Losses On Securities) (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2021 | Sep. 30, 2020 | Sep. 30, 2021 | Sep. 30, 2020
Debt Securities, Available-for-sale [Line Items] |  |  |  |
Debt securities, realized gains |  |  | $ 53 | $ 30
Equity securities, realized gains |  |  | 1,428 | 2,520
Debit and equity securities, realized gains |  |  | 1,481 | 2,550
Debt Securities, Available-for-sale, Realized Loss |  |  | (34) | 0
Equity securities, realized losses |  |  | (677) | (1,768)
Other-than-temporary impairment, gross realized losses |  |  | 0 | (482)
Debt and Equity Securities, Realized Loss |  |  | (711) | (2,250)
Debt and equity securities, net realized gain (loss) |  |  | 770 | 300
Gross gains on sales of other investments |  |  | 1 | 32
Gross losses on sales of other investments |  |  | 0 | (5)
Net gains (losses) on sales of other investments |  |  | 1 | 27
Net realized investment gains (losses) | $ 268 | $ 186 | $ 771 | $ 327

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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 http://asc.fasb.org/extlink&oid=121645371&loc=d3e27357-111563 + Details
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- Definition Amount of realized gain from sale of investment in equity security measured at fair value with change in fair value recognized in net income (FV-NI). + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 321 -SubTopic 10 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=120269885&loc=SL75117546-209714 + Details
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