Fair Value - Reconciliation and income statement classification of gains and losses for all assets measured at fair value on a recurring basis using significant unobservable inputs (Level 3) (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended	12 Months Ended
	Sep. 30, 2025	Sep. 30, 2025	Dec. 31, 2024
Reconciliation and income statement classification of gains and losses for all assets measured at fair value on a recurring basis using significant unobservable inputs
Beginning balance	$ 2,909	$ 3,701	$ 4,182
Total realized/unrealized gains or losses - Included in other comprehensive income	(66)	(53)	(106)
Settlements		(805)	(375)
Ending balance	2,843	2,843	3,701
State and municipal
Reconciliation and income statement classification of gains and losses for all assets measured at fair value on a recurring basis using significant unobservable inputs
Beginning balance		805	1,180
Settlements		(805)	(375)
Ending balance			805
Collateralized debt obligations
Reconciliation and income statement classification of gains and losses for all assets measured at fair value on a recurring basis using significant unobservable inputs
Beginning balance	2,909	2,896	3,002
Total realized/unrealized gains or losses - Included in other comprehensive income	(66)	(53)	(106)
Ending balance	$ 2,843	$ 2,843	$ 2,896