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Fair Value Measurements - Changes in Level 3 (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2025	Jun. 30, 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			(11)	(98)
Purchases, issuances, sales, and settlements
Purchases			461	547
Settlements			(269)	(52)
Ending balance	3,435	2,667	3,435	2,667
States and political subdivisions
Changes in Level 3
Beginning balance			11,896	13,059
Total gains or losses
Included in earnings				(66)
Included in other comprehensive income			(705)	(390)
Purchases, issuances, sales, and settlements
Settlements			(85)	(76)
Ending balance	11,106	12,527	11,106	12,527
Mortgage Servicing rights
Changes in Level 3
Beginning balance			10,374	10,344
Total gains or losses
Included in earnings			(883)	88
Purchases, issuances, sales, and settlements
Issuances			407	288
Settlements			(218)	(232)
Ending balance	$ 9,680	$ 10,488	$ 9,680	$ 10,488

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

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