Securities - Narrative (Details)	1 Months Ended	6 Months Ended
	Jul. 31, 2024 USD ($)	Jun. 30, 2024 USD ($)	Sep. 30, 2024 USD ($) investment	Dec. 31, 2023 USD ($) investment	Dec. 31, 2009 USD ($)
Debt Securities, Available-for-sale [Line Items]
Available-for-sale securities identified to be sold		$ 375,321,000
Available-for-sale, securities sold		175,061,000
Available-for-sale, remaining securities sold	$ 200,259,000
Proceeds of the securities sold		$ 80,000,000
Carrying value of securities pledged to secure repurchase agreements, public and trust deposits and other by law			$ 549,975,000	$ 366,576,000
Securities, available-for-sale, at fair value, allowance for credit losses			0	0
Accrued interest receivable on available-for-sale debt securities			6,847,000	9,620,000
Original amount in non-controlling investment security in a single banking organization			353,000	$ 353,000	$ 1,350,000
Additional impairment on equity securities recognized through earnings			$ 0		$ 997,000
Equity securities
Debt Securities, Available-for-sale [Line Items]
Number of non-controlling investments in a single banking organization | investment			1	1