FHLB Advances, Other Borrowings and Subordinated Notes - Schedule of Financial Instruments Owned and Pledged as Collateral (Details) - Securities sold under repurchase agreements - Overnight Sweep Collateral - USD ($) $ in Thousands	Sep. 30, 2023	Dec. 31, 2022	Sep. 30, 2022
Financial Instruments Owned and Pledged as Collateral [Line Items]
Excess collateral	$ 2,223
Securities sold under repurchase agreements	14,183	$ 17,600	$ 9,200
Mortgage-backed securities
Financial Instruments Owned and Pledged as Collateral [Line Items]
Mortgage-backed securities	$ 16,406