Financial Instruments with Off-Balance Sheet Risk (Details) - USD ($) $ in Thousands	Sep. 30, 2023	Dec. 31, 2022
Financial Instruments with Off-Balance Sheet Risk
Off-balance sheet risk	$ 795,967	$ 819,520
Commitments to extend credit
Financial Instruments with Off-Balance Sheet Risk
Off-balance sheet risk	786,233	806,431
Standby letters of credit
Financial Instruments with Off-Balance Sheet Risk
Off-balance sheet risk	$ 9,734	$ 13,089