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Derivative Financial Instruments (Schedule Of Derivative Gains And Losses In The Consolidated Statements Of Operations) (Details) - Derivatives Not Designated as Hedging Instrument [Member] - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Derivative [Line Items]
Gain Recognized in Income (Loss)	$ 2,987	$ 2,487	$ 5,625	$ 6,011
Total Return Swap [Member] | Net realized investment (losses) gains [Member]
Derivative [Line Items]
Gain Recognized in Income (Loss)	515	(320)	2,281	280
Equity contracts [Member] | Net realized investment (losses) gains [Member]
Derivative [Line Items]
Gain Recognized in Income (Loss)	$ 2,472	$ 2,807	$ 3,344	$ 5,731

X

- 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=109980867&loc=SL5618551-113959

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+ References

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