Servicing Assets - Unpaid Principal Balances of Loans Serviced for Others (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Loan portfolios serviced for:
Unpaid principal balances of loans serviced	$ 1,728,343	$ 1,732,164
SBA guaranteed loans
Loan portfolios serviced for:
Unpaid principal balances of loans serviced	1,530,401	1,521,014
USDA guaranteed loans
Loan portfolios serviced for:
Unpaid principal balances of loans serviced	$ 197,942	$ 211,150