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Loans and Allowance for Loan Losses (Details) - USD ($)
 12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
Accounts, Notes, Loans and Financing Receivable [Line Items]        
Financing Receivable, Nonaccrual, No Allowance $ 32,176,000 $ 41,310,000    
Financing Receivable, 90 Days or More Past Due, Still Accruing 3,515,000 6,004,000    
Financing Receivable, Nonaccrual $ 147,825,000 82,288,000    
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 $ 39,400,000 37,700,000    
Amount drawn from loans and other extensions of credit granted 37,400,000 34,700,000    
Commercial loans held-for-sale 19,700,000 9,280,000    
Mortgage loans held-for-sale 15,400,000 20,200,000    
Consumer loans held-for-sale, excluding mortgage loans 160,200,000 84,000,000.0    
Gains on mortgage loans sold, net 11,136,000 6,511,000 $ 7,268,000  
Impaired Financing Receivable, Interest Income, Cash Basis Method     0  
Currently performing impaired loans 36,300,000 7,900,000    
Mortgage loans held-for-sale sold 760,500,000 653,900,000 826,200,000  
Financing Receivable, Allowance for Credit Losses 414,494,000 353,055,000 300,665,000 $ 263,233,000
Financing Receivable, after Allowance for Credit Loss 35,071,282,000 32,323,036,000    
Financing Receivable, Nonaccrual, Interest Income, Cash Basis Method 0 0    
Financing Receivable, Nonaccrual, Interest Income Lost 9,500,000 4,500,000 1,600,000  
Commercial Real Estate Owner Occupied        
Accounts, Notes, Loans and Financing Receivable [Line Items]        
Financing Receivable, Nonaccrual, No Allowance 6,614,000 122,000    
Financing Receivable, 90 Days or More Past Due, Still Accruing 0 0    
Financing Receivable, Nonaccrual 13,747,000 3,452,000    
Financing Receivable, Allowance for Credit Losses 36,997,000 28,690,000 26,617,000 19,618,000
Commercial real estate non owner occupied        
Accounts, Notes, Loans and Financing Receivable [Line Items]        
Financing Receivable, Nonaccrual, No Allowance 4,152,000 40,669,000    
Financing Receivable, 90 Days or More Past Due, Still Accruing 0 0    
Financing Receivable, Nonaccrual $ 44,263,000 $ 41,343,000    
Percentage of credit exposure to risk based capital 242.20% 259.00%    
Financing Receivable, Allowance for Credit Losses $ 80,654,000 $ 57,687,000 40,479,000 58,504,000
Consumer Real Estate        
Accounts, Notes, Loans and Financing Receivable [Line Items]        
Financing Receivable, Nonaccrual, No Allowance 1,376,000 0    
Financing Receivable, 90 Days or More Past Due, Still Accruing 23,000 781,000    
Financing Receivable, Nonaccrual 38,222,000 17,879,000    
Construction and Land Development        
Accounts, Notes, Loans and Financing Receivable [Line Items]        
Financing Receivable, Nonaccrual, No Allowance 319,000 0    
Financing Receivable, 90 Days or More Past Due, Still Accruing 0 0    
Financing Receivable, Nonaccrual $ 2,387,000 $ 608,000    
Percentage of credit exposure to risk based capital 70.50% 84.20%    
Financing Receivable, Allowance for Credit Losses $ 33,620,000 $ 39,142,000 36,114,000 29,429,000
Commercial and Industrial        
Accounts, Notes, Loans and Financing Receivable [Line Items]        
Financing Receivable, Nonaccrual, No Allowance 19,715,000 519,000    
Financing Receivable, 90 Days or More Past Due, Still Accruing 2,873,000 3,802,000    
Financing Receivable, Nonaccrual 48,575,000 18,931,000    
Consumer and Other        
Accounts, Notes, Loans and Financing Receivable [Line Items]        
Financing Receivable, Nonaccrual, No Allowance 0 0    
Financing Receivable, 90 Days or More Past Due, Still Accruing 619,000 1,421,000    
Financing Receivable, Nonaccrual 631,000 75,000    
Financing Receivable, Allowance for Credit Losses $ 8,382,000 $ 7,970,000 $ 16,566,000 $ 11,238,000