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Loans, Allowance for Credit Losses, and Asset Quality Information - Narrative (Details)
$ in Thousands
12 Months Ended
Dec. 31, 2022
USD ($)
loan
Dec. 31, 2021
USD ($)
loan
Dec. 31, 2020
USD ($)
Dec. 31, 2019
USD ($)
Loans and Leases Receivable Disclosure [Line Items]        
PPP loans $ 0 $ 39,000    
Unamortized discount on acquired loans $ 11,600 $ 17,200    
Number of loans to debtors with nonperforming loans | loan 1 0    
Net book balance of individually evaluated loans on nonaccrual, threshold amount for designation as collateral dependent loans $ 350      
Interest income on restructured loans     $ 1,100  
Loans 6,666,548 $ 6,083,419 4,735,013  
Financing receivable, revolving, converted to term loan during period 3,300 1,000    
Allowance for credit losses on loans 90,967 78,789 52,388 $ 21,398
SBA Loans        
Loans and Leases Receivable Disclosure [Line Items]        
Unamortized discount on acquired loans 4,300 6,000    
Asset Pledged as Collateral without Right        
Loans and Leases Receivable Disclosure [Line Items]        
Loans, gross 5,300,000 4,300,000    
Commercial, financial, and agricultural        
Loans and Leases Receivable Disclosure [Line Items]        
Loans 641,941 648,997 782,549  
Allowance for credit losses on loans 17,718 16,249 11,316 4,553
Consumer loans        
Loans and Leases Receivable Disclosure [Line Items]        
Loans 60,659 57,238 53,955  
Allowance for credit losses on loans 2,900 2,656 1,478 $ 972
Special Mention Loans        
Loans and Leases Receivable Disclosure [Line Items]        
Loans 39,000 43,100    
Special Mention Loans | Consumer loans        
Loans and Leases Receivable Disclosure [Line Items]        
Loans 0 4    
Classified        
Loans and Leases Receivable Disclosure [Line Items]        
Loans 48,500 56,000    
Classified | Consumer loans        
Loans and Leases Receivable Disclosure [Line Items]        
Loans $ 435 148    
Real Estate        
Loans and Leases Receivable Disclosure [Line Items]        
Threshold percentage to write-off nonaccrual loans 90.00%      
Real Estate | Receivable Benchmark | Collateral Type Concentration Risk        
Loans and Leases Receivable Disclosure [Line Items]        
Concentration risk percentage 90.00%      
Hotel | Minimum        
Loans and Leases Receivable Disclosure [Line Items]        
Threshold percentage to write-off nonaccrual loans 10.00%      
Hotel | Maximum        
Loans and Leases Receivable Disclosure [Line Items]        
Threshold percentage to write-off nonaccrual loans 25.00%      
Non Real Estate        
Loans and Leases Receivable Disclosure [Line Items]        
Threshold percentage to write-off nonaccrual loans 75.00%      
Officers and Directors        
Loans and Leases Receivable Disclosure [Line Items]        
Due from related parties $ 6,000 600    
Number of new loans to related parties | loan 6      
New loans to related parties $ 5,500      
Repayments received from related parties 100      
Residential Mortgage Loans        
Loans and Leases Receivable Disclosure [Line Items]        
Presold mortgages in process of settlement 800 1,500    
Unfunded Loan Commitment        
Loans and Leases Receivable Disclosure [Line Items]        
Allowance for credit losses on loans $ 13,306 $ 13,506 $ 582