Fair Value of Financial Instruments (Details) - USD ($) $ in Thousands	Jun. 30, 2022	Dec. 31, 2021
Balance sheet assets:
Investment securities	$ 740,074	$ 673,453
Carrying Amount
Balance sheet assets:
Cash and cash equivalents	261,234	514,928
Investment securities	740,074	673,453
Loans, net	946,914	948,526
Accrued interest receivable	7,251	6,799
Total	1,955,473	2,143,706
Balance sheet liabilities:
Deposits	1,189,575	1,221,503
Accounts and drafts payable	998,870	1,050,396
Accrued interest payable	29	16
Total	2,188,474	2,271,915
Fair Value
Balance sheet assets:
Cash and cash equivalents	261,234	514,928
Investment securities	740,074	673,453
Loans, net	928,347	948,701
Accrued interest receivable	7,251	6,799
Total	1,936,906	2,143,881
Balance sheet liabilities:
Deposits	1,189,575	1,221,503
Accounts and drafts payable	998,870	1,050,396
Accrued interest payable	29	16
Total	$ 2,188,474	$ 2,271,915