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Fair Value Measurements - Changes in Level 3 (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2025	Mar. 31, 2024
Changes in Level 3
Transfers into Level 3	$ 0	$ 0
Asset-backed Securities
Changes in Level 3
Beginning balance	3,254	2,270
Total gains or losses
Included in other comprehensive income	(36)	(29)
Purchases, issuances, sales, and settlements
Purchases	461	259
Settlements	(96)	(15)
Ending balance	(3,583)	2,485
States and political subdivisions
Changes in Level 3
Beginning balance	11,896	13,059
Total gains or losses
Included in earnings		(33)
Included in other comprehensive income	(466)	(89)
Purchases, issuances, sales, and settlements
Settlements	(42)	(34)
Ending balance	(11,388)	12,903
Mortgage Servicing rights
Changes in Level 3
Beginning balance	10,374	10,344
Total gains or losses
Included in earnings	(488)	172
Purchases, issuances, sales, and settlements
Issuances	134	126
Settlements	(82)	(78)
Ending balance	$ (9,938)	$ 10,564

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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).

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-Topic 820
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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 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 settlement 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 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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