Investments (Credit Losses Recognized In Earnings on Fixed Maturity Securities Held by the Company) (Details) - Fixed maturities - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
Sep. 30, 2020	Sep. 30, 2020
Debt Securities, Available-for-sale [Line Items]
Balance, beginning of period	$ 4,572	$ 0
Additions to allowance for credit losses not previously recorded	781	5,672
Reductions for securities sold during the period	0	(9)
Addition (reductions) on securities with previous allowance	(119)	(429)
Write-downs charged against the allowance	(2,701)	(2,701)
Balance, end of period	2,533	2,533
US Treasury securities and obligations of U.S. government authorities and agencies
Debt Securities, Available-for-sale [Line Items]
Balance, beginning of period	0	0
Additions to allowance for credit losses not previously recorded	0	0
Reductions for securities sold during the period	0	0
Addition (reductions) on securities with previous allowance	0	0
Write-downs charged against the allowance	0	0
Balance, end of period	0	0
Foreign government bonds
Debt Securities, Available-for-sale [Line Items]
Balance, beginning of period	0	0
Additions to allowance for credit losses not previously recorded	0	0
Reductions for securities sold during the period	0	0
Addition (reductions) on securities with previous allowance	0	0
Write-downs charged against the allowance	0	0
Balance, end of period	0	0
U.S. and Foreign Corporate Securities
Debt Securities, Available-for-sale [Line Items]
Balance, beginning of period	4,572	0
Additions to allowance for credit losses not previously recorded	781	5,672
Reductions for securities sold during the period	0	(9)
Addition (reductions) on securities with previous allowance	(119)	(429)
Write-downs charged against the allowance	(2,701)	(2,701)
Balance, end of period	2,533	2,533
Asset-backed securities
Debt Securities, Available-for-sale [Line Items]
Balance, beginning of period	0	0
Additions to allowance for credit losses not previously recorded	0	0
Reductions for securities sold during the period	0	0
Addition (reductions) on securities with previous allowance	0	0
Write-downs charged against the allowance	0	0
Balance, end of period	0	0
Commercial mortgage-backed securities
Debt Securities, Available-for-sale [Line Items]
Balance, beginning of period	0	0
Additions to allowance for credit losses not previously recorded	0	0
Reductions for securities sold during the period	0	0
Addition (reductions) on securities with previous allowance	0	0
Write-downs charged against the allowance	0	0
Balance, end of period	0	0
Residential mortgage-backed securities
Debt Securities, Available-for-sale [Line Items]
Balance, beginning of period	0	0
Additions to allowance for credit losses not previously recorded	0	0
Reductions for securities sold during the period	0	0
Addition (reductions) on securities with previous allowance	0	0
Write-downs charged against the allowance	0	0
Balance, end of period	$ 0	$ 0

This item represents an increase to the cumulative amount of credit losses recognized in earnings for an other than temporary impairment (OTTI) of a debt security held for which no such other than temporary impairment (OTTI) was previously recognized.

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- Definition

The cumulative amount of credit losses recognized in earnings related to debt securities held for which a portion of an other than temporary impairment (OTTI) was recognized in other comprehensive income (a component of shareholders' equity).

+ References

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
-SubTopic 10
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-Section 50
-Paragraph 8B
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- Definition

Amount of increase (decrease) in the cumulative amount of credit losses recognized in earnings related to debt securities held for which a portion of an other than temporary impairment (OTTI) was recognized in other comprehensive income (loss).

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
-SubTopic 10
-Section 50
-Paragraph 8B
-URI http://asc.fasb.org/extlink&oid=121645371&loc=SL6284393-111563

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This item represents reductions in the amount of cumulative losses recognized in earnings for other than temporary impairments (OTTI) for which a portion of the impairment had been recognized in other comprehensive income (a component of shareholders' equity) due to a change in status of the impaired security because of a change in the entity's intent to either sell the impaired security or it has become more likely than not that the entity will be required to sell the security before recovery of its cost basis.

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This item represents reductions in the cumulative amount of credit losses recognized in earnings for an other than temporary impairment (OTTI) of a debt security because of the sale of impaired securities during the period.

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