Investments (Credit Losses Recognized In Earnings on Fixed Maturity Securities Held by the Company) (Details) - Fixed maturities - Available-for-sale - USD ($) $ in Thousands	3 Months Ended
Mar. 31, 2022	Mar. 31, 2021
Debt Securities, Available-for-sale [Line Items]
Balance, beginning of period	$ 1,086	$ 686
Additions to allowance for credit losses not previously recorded	0	432
Reductions for securities sold during the period	0	(6)
Addition (reductions) on securities with previous allowance	352	(377)
Balance, end of period	1,438	735
U.S. 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
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
Balance, end of period	0	0
U.S. and Foreign Corporate Securities
Debt Securities, Available-for-sale [Line Items]
Balance, beginning of period	1,086	686
Additions to allowance for credit losses not previously recorded	0	432
Reductions for securities sold during the period	0	(6)
Addition (reductions) on securities with previous allowance	352	(377)
Balance, end of period	1,438	735
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
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
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
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

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
-SubTopic 10
-Section 50
-Paragraph 8B
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=123581744&loc=SL6284393-111563

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
-SubTopic 10
-Section 50
-Paragraph 8B
-Subparagraph (g)
-URI http://asc.fasb.org/extlink&oid=123581744&loc=SL6284393-111563

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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=123581744&loc=SL6284393-111563

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- Definition

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.

+ References

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

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