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Allowance for Loan Losses (Details) - USD ($)
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
Financing Receivable, Allowance for Credit Loss, Writeoff, after Recovery [Abstract]        
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest $ 1,243,848,000 $ 1,145,293,000    
Financing Receivable, Allowance for Credit Losses [Line Items]        
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest 1,243,848,000 1,145,293,000    
Financing Receivable, Allowance for Credit Loss, Excluding Accrued Interest 87,966,000 83,745,000 $ 85,379,000 $ 83,197,000
Allowance for credit loss, qualitative adjustment 1,200,000 417,000    
Catastrophe        
Financing Receivable, Allowance for Credit Losses [Line Items]        
Allowance for credit loss, qualitative adjustment 757,000      
Retained Earnings        
Financing Receivable, Allowance for Credit Loss, Writeoff, after Recovery [Abstract]        
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest 977,599,000 903,877,000 847,235,000 776,294,000
Financing Receivable, Allowance for Credit Losses [Line Items]        
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest $ 977,599,000 $ 903,877,000 847,235,000 $ 776,294,000
Cumulative Effect, Period of Adoption, Adjustment        
Financing Receivable, Allowance for Credit Losses [Line Items]        
Financing Receivable, Allowance for Credit Loss, Excluding Accrued Interest     383,000  
Cumulative Effect, Period of Adoption, Adjustment | Retained Earnings        
Financing Receivable, Allowance for Credit Loss, Writeoff, after Recovery [Abstract]        
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest     (303,000)  
Financing Receivable, Allowance for Credit Losses [Line Items]        
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest     (303,000)  
Cumulative Effect, Period of Adoption, Adjustment | Accounting Standards Update 2022-02        
Financing Receivable, Allowance for Credit Losses [Line Items]        
Financing Receivable, Allowance for Credit Loss, Excluding Accrued Interest     383,000  
Cumulative Effect, Period of Adoption, Adjustment | Accounting Standards Update 2022-02 | Retained Earnings        
Financing Receivable, Allowance for Credit Loss, Writeoff, after Recovery [Abstract]        
Net deferred tax asset     80,000  
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest     303,000  
Financing Receivable, Allowance for Credit Losses [Line Items]        
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest     303,000  
Net deferred tax asset     $ 80,000