Investment Securities - Additional Information (Details)	1 Months Ended	12 Months Ended
	Feb. 28, 2022 USD ($)	Dec. 31, 2023 USD ($) Security shares	Dec. 31, 2022 USD ($) Security shares
Debt Securities, Held-to-Maturity, Allowance for Credit Loss [Line Items]
Securities pledged to secure public deposits		$ 268,200,000	$ 242,300,000
Securities pledged to secure repurchase agreements		26,900,000	16,200,000
Transfer of securities from available-for-sale to held-to-maturity	$ 75,000,000
Realized investment gains (loss)	0	5,000	$ (2,066,000)
Unrealized losses	$ 3,400,000
Allowance for credit loss recorded on available-for-sale securities		0
Interest receivable on securities		$ 2,100,000
Number of securities in unrealized loss positions | Security		332	346
Other than U.S. Government and Agencies
Debt Securities, Held-to-Maturity, Allowance for Credit Loss [Line Items]
Holdings of securities of any one issuer, amount greater than 10% of shareholders equity | shares		0	0