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Fair Value Measurements - Additional Information (Details)
 12 Months Ended
Dec. 31, 2023
USD ($)
loan
Dec. 31, 2022
USD ($)
loan
Dec. 31, 2021
USD ($)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Residential mortgage loans held for sale period 45 days    
Interest Rate Lock Commitments, Average Percentage Of Estimated Pull Through Rate To Calculate Fair Value 81.1    
Impairment on mortgage servicing rights $ 0    
Loans 7,698,758,000 $ 7,220,469,000  
Impairment on other real estate owned 249,000 505,000  
Impairment on fixed assets related to banking center consolidations 200,000 0 $ 1,600,000
Net Book Balance Of Fixed Assets Sold 13,400,000    
Banking centers classified as held-for-sale 5    
Fair Value, Nonrecurring [Member]      
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Nonrecurring Loans Reserves $ 8,600,000 $ 5,300,000  
Number of Loans measured | loan 10 13  
Loans $ 32,700,000 $ 14,600,000  
Other Real Estate Owned [Member]      
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Impairment on other real estate owned 200,000 500,000  
SBA Servicing Rights      
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Impairment on mortgage servicing rights $ 75,000 $ 0  
Measurement Input, Discount Rate [Member] | Other Real Estate Owned [Member] | Minimum [Member]      
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Measurement input (as a percent) 0.06    
Measurement Input, Discount Rate [Member] | Other Real Estate Owned [Member] | Maximum [Member]      
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Measurement input (as a percent) 0.10    
Measurement Input, Discount Rate [Member] | Other Real Estate Owned [Member] | Weighted Average      
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Measurement input (as a percent) 0.061    
Measurement Input, Discount Rate [Member] | SBA Servicing Rights      
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Servicing assets measurement input (as a percent) 0.123 15.2  
Measurement Input, Constant Prepayment Rate [Member] | SBA Servicing Rights      
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Servicing assets measurement input (as a percent) 0.147 12.4  
Impaired loans [Member]. | Measurement Input, Discount Rate [Member] | Minimum [Member]      
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Measurement input (as a percent) 0.06    
Impaired loans [Member]. | Measurement Input, Discount Rate [Member] | Maximum [Member]      
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Measurement input (as a percent) 0.40    
Impaired loans [Member]. | Measurement Input, Discount Rate [Member] | Weighted Average      
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Measurement input (as a percent) 0.113    
Mortgage Servicing Rights [Member]      
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Impairment on mortgage servicing rights   $ (100,000)  
Mortgage Servicing Rights [Member] | Measurement Input, Discount Rate [Member] | Minimum [Member]      
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Servicing assets measurement input (as a percent) 0.100    
Mortgage Servicing Rights [Member] | Measurement Input, Discount Rate [Member] | Maximum [Member]      
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Servicing assets measurement input (as a percent) 0.105 0.100  
Mortgage Servicing Rights [Member] | Measurement Input, Discount Rate [Member] | Weighted Average      
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Servicing assets measurement input (as a percent) 0.100 0.100  
Mortgage Servicing Rights [Member] | Measurement Input, Constant Prepayment Rate [Member] | Minimum [Member]      
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Servicing assets measurement input (as a percent) 0.065 0.076  
Mortgage Servicing Rights [Member] | Measurement Input, Constant Prepayment Rate [Member] | Maximum [Member]      
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Servicing assets measurement input (as a percent) 0.158 0.082  
Mortgage Servicing Rights [Member] | Measurement Input, Constant Prepayment Rate [Member] | Weighted Average      
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Servicing assets measurement input (as a percent) 0.070 0.077