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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
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Mar. 31, 2020 | Mar. 31, 2019
Debt Securities, Available-for-sale [Line Items] |  |
Total, gross realized gains | $ 777 | $ 831
Total, gross realized losses | (1,204) | (41)
Net realized (losses) gains from securities | (427) | 790
Gain on other investments | 20 | 0
Losses on Other Assets and Investments | (5) | 0
Total | 15 | 0
Net realized investment (losses) gains | (412) | 790
Corporate debt securities |  |
Debt Securities, Available-for-sale [Line Items] |  |
Total, gross realized gains | 30 | 0
Common stocks |  |
Debt Securities, Available-for-sale [Line Items] |  |
Equity securities, realized gain | 747 | 831
Equity securities, realized loss | (722) | (41)
Other-than-temporary impairment of securities |  |
Debt Securities, Available-for-sale [Line Items] |  |
Total, gross realized losses | $ (482) | $ 0

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- Definition This item represents the difference between the gross realized gains and losses realized on the sale of debt or equity securities categorized neither as held-to-maturity nor trading securities. Additionally, this item would include any losses recognized for other than temporary impairments (OTTI) of the subject investments in debt and equity securities. + References No definition available. + 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=116654751&loc=SL75117546-209714 + Details
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