Fair Value Measurements (Summarize Changes in Level 3 Assets and Liabilities) (Details) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2023	Dec. 31, 2022
Liabilities:
Fair Value Recurring Basis Unobservable Input Reconciliation Asset Gain Loss Statement Of Income Extensible List Not Disclosed Flag	Earnings (Losses)	Earnings (Losses)
Level 3
Assets:
Beginning Balance	$ 17,488	$ 20,590
Earnings (Losses)	(927)	(6,871)
Other Comprehensive Income (Losses)	0	0
Impairments	(7,601)	0
Purchases	0	5,611
Sales	0	(1,842)
Paydowns/Maturities	0	0
Transfers In / Out	65	0
Ending Balance	9,025	17,488
Liabilities:
Beginning Balance	0	0
Earnings (Losses)	0	0
Other Comprehensive Income (Losses)	0	0
Impairments	0	0
Purchases	0	0
Sales	0	0
Paydowns/Maturities	0	0
Transfers In / Out	0	0
Ending Balance	0	0
Level 3 \| Debt Securities
Assets:
Beginning Balance	0	0
Earnings (Losses)	0	0
Other Comprehensive Income (Losses)	0	0
Impairments	0	0
Purchases	0	0
Sales	0	0
Paydowns/Maturities	0	0
Transfers In / Out	0	0
Ending Balance	0	0
Level 3 \| Corporate
Assets:
Beginning Balance	0	0
Earnings (Losses)	0	0
Other Comprehensive Income (Losses)	0	0
Impairments	0	0
Purchases	0	0
Sales	0	0
Paydowns/Maturities	0	0
Transfers In / Out	0	0
Ending Balance	0	0
Level 3 \| Equity securities
Assets:
Beginning Balance	13,898	20,590
Earnings (Losses)	(1,044)	(6,692)
Other Comprehensive Income (Losses)	0	0
Impairments	(7,601)	0
Purchases	0	925
Sales	0	(925)
Paydowns/Maturities	0	0
Transfers In / Out	0	0
Ending Balance	5,253	13,898
Level 3 \| Common stocks
Assets:
Beginning Balance	2,599	9,294
Earnings (Losses)	(1,041)	(6,695)
Other Comprehensive Income (Losses)	0	0
Impairments	0	0
Purchases	0	0
Sales	0	0
Paydowns/Maturities	0	0
Transfers In / Out	0	0
Ending Balance	1,558	2,599
Level 3 \| Preferred stocks
Assets:
Beginning Balance	11,299	11,296
Earnings (Losses)	(3)	3
Other Comprehensive Income (Losses)	0	0
Impairments	(7,601)	0
Purchases	0	925
Sales	0	(925)
Paydowns/Maturities	0	0
Transfers In / Out	0	0
Ending Balance	3,695	11,299
Level 3 \| Trading account
Assets:
Beginning Balance	3,590	0
Earnings (Losses)	117	(179)
Other Comprehensive Income (Losses)	0	0
Impairments	0	0
Purchases	0	4,686
Sales	0	(917)
Paydowns/Maturities	0	0
Transfers In / Out	65	0
Ending Balance	$ 3,772	$ 3,590

A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

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A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

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Amount of transfers of financial instrument classified as a liability out of level 3 of the fair value hierarchy.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 820
-SubTopic 10
-Name Accounting Standards Codification
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-Paragraph 2
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-Publisher FASB
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Amount of gain (loss) recognized in income from asset measured at fair value on recurring basis using unobservable input (level 3).

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Amount of gain (loss) recognized in other comprehensive income (OCI) from asset measured at fair value on recurring basis using unobservable input (level 3).

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Amount of purchases of financial instrument classified as an asset measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing.

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Amount of sale of financial instrument classified as an asset measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing.

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Amount of transfer of financial instrument classified as an asset into (out of) level 3 of the fair value hierarchy.

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Fair value of financial instrument classified as an asset measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing.

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Amount of gain (loss) recognized in income from liability measured at fair value on recurring basis using unobservable input (level 3).

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Amount of settlements of financial instrument classified as a liability measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing.

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Fair value of financial instrument classified as a liability measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing.

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The amount of impairment loss recognized in the period resulting from the write-down of the carrying amount of an intangible asset (excluding goodwill) to fair value.

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Fair Value, Impairment of Intangible Assets (Excluding Goodwill)

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