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Investments (Net Realized and Unrealized Investment Gains and (Losses)) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Gain (Loss) on Securities [Line Items]
Gross gains on sales	$ 2,197	$ 3,676
Gross losses on sales	(13,560)	(4,471)
Debt and Equity Securities, Realized Loss	(11,363)	(795)
Net unrealized (losses) gains on equity securities	(2,154)	11,280
Losses on securities for which we have the intent to sell	(4,797)	(362)
Net realized and unrealized investment (losses) gains	(40,352)	5,119
Available-for-sale Securities [Member]
Gain (Loss) on Securities [Line Items]
Net credit loss benefit (expense) on fixed maturities	(22,052)	(4,997)
Held-to-maturity Securities [Member]
Gain (Loss) on Securities [Line Items]
Net credit loss benefit (expense) on fixed maturities	$ 14	$ (7)

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The credit loss expensed during the period on investment portfolio.

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Losses on investment securities for which we have the intent to sell

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Amount of realized gain (loss) on investment in debt and equity securities.

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Amount of unrealized gain (loss) on investment in equity security measured at fair value with change in fair value recognized in net income (FV-NI).

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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 220
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-04(3)(d))
-URI http://asc.fasb.org/extlink&oid=120400993&loc=SL114874131-224263

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-Topic 321
-SubTopic 10
-Section 50
-Paragraph 4
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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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-Topic 320
-SubTopic 10
-Section 50
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