Fair Value Measurements - Mortgage Servicing Rights - Level 3 (Details) - Recurring - Significant Unobservable Inputs (Level 3) - USD ($) $ in Thousands	9 Months Ended
Sep. 30, 2023	Sep. 30, 2022
Mortgage Servicing Rights
Fair value of assets
Balance at beginning of period	$ 2,899	$ 2,659
Total gains or (losses) (realized/unrealized):
Included in earnings	(52)	186
Included in other comprehensive income	0	0
Purchases	0	0
Sales	0	0
Issues	38	61
Settlements	0	0
Balance at end of period	2,885	2,906
Interest Rate Lock Commitments
Fair value of liabilities
Balance at beginning of period	2	286
Total gains or (losses) (realized/unrealized):
Included in earnings	(31)	(22)
Included in other comprehensive income	0	0
Purchases	0	0
Sales	(125)	(474)
Issues	197	144
Settlements	0	0
Balance at end of period	$ 43	$ (66)

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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- 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
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-Paragraph 2
-Subparagraph (c)(1)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482106/820-10-50-2

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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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-Topic 820
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-Name Accounting Standards Codification
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-Publisher FASB
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Amount of issuances 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 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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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 gain (loss) recognized in other comprehensive income (OCI) from liability measured at fair value on recurring basis using unobservable input (level 3).

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Amount of sales 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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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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