Fair Value - Level 3 Assets (Details) - Level 3 - USD ($) $ in Thousands	3 Months Ended
Mar. 31, 2024	Mar. 31, 2023
Roll forward of level 3 fair value measurements on a recurring basis
Beginning balance	$ 24,368	$ 22,559
Included in earnings	(170)	(262)
Included in other comprehensive income (loss)	111	398
Purchases	2,938	2,300
Sales	(342)	(732)
Transfers into Level 3	7,651	1,668
Transfers out of Level 3	(8,103)	(10,281)
Ending balance	26,453	15,650
Available-for-sale Securities
Roll forward of level 3 fair value measurements on a recurring basis
Beginning balance	17,034	18,780
Included in earnings	(256)	(224)
Included in other comprehensive income (loss)	111	398
Purchases	1,938	1,342
Sales	(342)	(732)
Transfers into Level 3	7,627	1,668
Transfers out of Level 3	(7,627)	(10,281)
Ending balance	18,485	10,951
Available-for-sale Securities \| Corporate debt securities
Roll forward of level 3 fair value measurements on a recurring basis
Beginning balance	4,506	3,686
Included in earnings	3	(28)
Included in other comprehensive income (loss)	41	85
Purchases	343	753
Sales	(302)	(645)
Transfers into Level 3	1,622	1,498
Transfers out of Level 3	(2,305)	(846)
Ending balance	3,908	4,503
Available-for-sale Securities \| Commercial mortgage-backed securities
Roll forward of level 3 fair value measurements on a recurring basis
Beginning balance	10,994	10,910
Included in earnings	(254)	(191)
Included in other comprehensive income (loss)	94	217
Purchases	1,595	589
Sales	0	0
Transfers into Level 3	6,005	137
Transfers out of Level 3	(3,857)	(5,247)
Ending balance	14,577	6,415
Available-for-sale Securities \| Residential mortgage- backed securities
Roll forward of level 3 fair value measurements on a recurring basis
Beginning balance	1,534	4,184
Included in earnings	(5)	(5)
Included in other comprehensive income (loss)	(24)	96
Purchases	0	0
Sales	(40)	(87)
Transfers into Level 3	0	33
Transfers out of Level 3	(1,465)	(4,188)
Ending balance	0	33
Equity securities \| Equity securities
Roll forward of level 3 fair value measurements on a recurring basis
Beginning balance	7,334	3,779
Included in earnings	86	(38)
Included in other comprehensive income (loss)	0	0
Purchases	1,000	958
Sales	0	0
Transfers into Level 3	24	0
Transfers out of Level 3	(476)	0
Ending balance	$ 7,968	$ 4,699

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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- Definition

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

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 820
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (c)(1)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482106/820-10-50-2

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- Definition

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

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 820
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (c)(1a)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482106/820-10-50-2

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- Definition

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.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)(2)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482106/820-10-50-2

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- Definition

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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- Definition

Amount of transfer of financial instrument classified as an asset into 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
-Section 50
-Paragraph 2
-Subparagraph (c)(3)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482106/820-10-50-2

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- Definition

Amount of transfers of financial instrument classified as an asset 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.

+ References

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-Subparagraph (c)
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-Topic 820
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482106/820-10-50-2

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