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Derivative Financial Instruments (Schedule Of Derivative Gains And Losses In The Consolidated Statements Of Operations) (Details) - Not Designated as Hedging Instrument - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019
Derivative [Line Items] |  |  |
Gains Recognized in Income | $ 3,045 | $ 22,306 | $ 7,378
Total Return Swap | Net realized investment gains |  |  |
Derivative [Line Items] |  |  |
Gains Recognized in Income | 0 | 0 | 1,039
Options sold | Net realized investment gains |  |  |
Derivative [Line Items] |  |  |
Gains Recognized in Income | $ 3,045 | $ 22,306 | $ 6,339

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- Definition Amount of increase (decrease) in the fair value of derivatives recognized in the income statement. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4A -Subparagraph (b)(1) -URI http://asc.fasb.org/extlink&oid=125515794&loc=SL5618551-113959 + Details
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