Loans and Allowance for Credit Losses - Summary of Loans by Major Class (Details) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Loans and Allowance for Loan Losses
Loans held for investment	$ 1,518,853	$ 1,539,147
Commercial, financial, & agricultural
Loans and Allowance for Loan Losses
Loans held for investment	218,018	226,275
Real estate construction − residential
Loans and Allowance for Loan Losses
Loans held for investment	47,088	58,347
Real estate construction − commercial
Loans and Allowance for Loan Losses
Loans held for investment	52,781	130,296
Real estate mortgage − residential
Loans and Allowance for Loan Losses
Loans held for investment	375,118	372,391
Real estate mortgage − commercial
Loans and Allowance for Loan Losses
Loans held for investment	807,703	731,024
Installment and other consumer
Loans and Allowance for Loan Losses
Loans held for investment	$ 18,145	$ 20,814