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Loans and Allowance for Loan Losses (Details) - USD ($)
 12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Nonaccrual loans $ 38,116,000 $ 31,569,000  
Financing Receivable, Nonaccrual, No Allowance 9,043,000 13,188,000  
Financing Receivable, 90 Days or More Past Due, Still Accruing $ 4,406,000 1,607,000  
Percentage of credit exposure to risk based capital 25.00%    
Loans and other extensions of credit granted to directors, executive officers, and their related entities $ 20,900,000 45,200,000  
Amount drawn from loans and other extensions of credit granted 16,000,000 14,500,000  
Commercial loans held-for-sale 21,093,000 17,685,000  
Mortgage loans held-for-sale 12,900,000 30,300,000  
Mortgage Loan Volumes Sold 826,200,000 1,600,000,000  
Gains on mortgage loans sold, net 7,268,000 32,424,000 $ 60,042,000
Loans 29,041,605,000 23,414,262,000  
Impaired Financing Receivable, Interest Income, Cash Basis Method 0 0 0
Interest Lost on impaired loans 1,600,000 1,700,000 $ 3,300,000
Currently performing impaired loans 6,400,000 15,500,000  
Paycheck Protection Program      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Loans 8,000,000 371,100,000  
Commercial Real Estate Owner Occupied      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Nonaccrual loans 1,882,000 2,694,000  
Financing Receivable, Nonaccrual, No Allowance 0 0  
Financing Receivable, 90 Days or More Past Due, Still Accruing 0 0  
Loans 3,587,257,000 3,048,822,000  
Commercial real estate non owner occupied      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Nonaccrual loans 2,244,000 1,404,000  
Financing Receivable, Nonaccrual, No Allowance 1,040,000 0  
Financing Receivable, 90 Days or More Past Due, Still Accruing $ 0 $ 0  
Percentage of credit exposure to risk based capital 249.60% 234.10%  
Loans $ 6,542,619,000 $ 5,221,704,000  
Consumer Real Estate      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Nonaccrual loans 17,330,000 10,264,000  
Financing Receivable, Nonaccrual, No Allowance 0 0  
Financing Receivable, 90 Days or More Past Due, Still Accruing 0 144,000  
Construction and Land Development      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Nonaccrual loans 231,000 356,000  
Financing Receivable, Nonaccrual, No Allowance 0 0  
Financing Receivable, 90 Days or More Past Due, Still Accruing $ 0 $ 0  
Percentage of credit exposure to risk based capital 85.90% 79.10%  
Loans $ 3,679,498,000 $ 2,903,017,000  
Commercial and Industrial      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Nonaccrual loans 16,345,000 16,849,000  
Financing Receivable, Nonaccrual, No Allowance 8,003,000 13,188,000  
Financing Receivable, 90 Days or More Past Due, Still Accruing 3,663,000 1,091,000  
Consumer and Other      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Nonaccrual loans 84,000 2,000  
Financing Receivable, Nonaccrual, No Allowance 0 0  
Financing Receivable, 90 Days or More Past Due, Still Accruing 743,000 372,000  
Loans $ 555,823,000 $ 485,489,000