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Loans and Allowance for Loan Losses (Details) - USD ($)
 12 Months Ended
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Nonaccrual loans $ 82,288,000 $ 38,116,000  
Financing Receivable, Nonaccrual, No Allowance 41,310,000 9,043,000  
Financing Receivable, 90 Days or More Past Due, Still Accruing $ 6,004,000 4,406,000  
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 $ 37,700,000 20,900,000  
Amount drawn from loans and other extensions of credit granted 34,700,000 16,000,000  
Commercial loans held-for-sale 9,280,000 21,093,000  
Mortgage loans held-for-sale 20,200,000 12,900,000  
Gains on mortgage loans sold, net 6,511,000 7,268,000 $ 32,424,000
Loans 32,676,091,000 29,041,605,000  
Impaired Financing Receivable, Interest Income, Cash Basis Method 0 0 0
Interest Lost on impaired loans 4,500,000 1,600,000 1,700,000
Currently performing impaired loans 7,900,000 6,400,000  
Mortgage loans held-for-sale sold 653,900,000 826,200,000 $ 1,600,000,000
Commercial Real Estate Owner Occupied      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Nonaccrual loans 3,452,000 1,882,000  
Financing Receivable, Nonaccrual, No Allowance 122,000 0  
Financing Receivable, 90 Days or More Past Due, Still Accruing 0 0  
Loans 4,044,896,000 3,587,257,000  
Commercial real estate non owner occupied      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Nonaccrual loans 41,343,000 2,244,000  
Financing Receivable, Nonaccrual, No Allowance 40,669,000 1,040,000  
Financing Receivable, 90 Days or More Past Due, Still Accruing $ 0 $ 0  
Percentage of credit exposure to risk based capital 259.00% 249.60%  
Loans $ 7,535,494,000 $ 6,542,619,000  
Consumer Real Estate      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Nonaccrual loans 17,879,000 17,330,000  
Financing Receivable, Nonaccrual, No Allowance 0 0  
Financing Receivable, 90 Days or More Past Due, Still Accruing 781,000 0  
Construction and Land Development      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Nonaccrual loans 608,000 231,000  
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 84.20% 85.90%  
Loans $ 4,041,081,000 $ 3,679,498,000  
Commercial and Industrial      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Nonaccrual loans 18,931,000 16,345,000  
Financing Receivable, Nonaccrual, No Allowance 519,000 8,003,000  
Financing Receivable, 90 Days or More Past Due, Still Accruing 3,802,000 3,663,000  
Consumer and Other      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Nonaccrual loans 75,000 84,000  
Financing Receivable, Nonaccrual, No Allowance 0 0  
Financing Receivable, 90 Days or More Past Due, Still Accruing 1,421,000 743,000  
Loans $ 536,398,000 $ 555,823,000