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Fair Value of Financial Instruments - Narrative (Details) - USD ($)
 12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]        
Servicing asset at fair value, gain on disposal $ 410,000      
Mortgage servicing rights assets recognized or recorded during period 0 $ 708,000 $ 2,286,000  
Carrying value MSR assets 0 15,637,000 20,824,000 $ 16,220,000
Equity investments 28,200,000 29,300,000    
Other financial institutions, excluding FRBD and FHLB 43,400,000 25,900,000    
Impairment recorded on investments in equity securities that do not have readily determinable fair values 0      
Change in fair value of equity investments 5,188,000 10,096,000 $ 0  
Loan balance individually evaluated 17,724,000 5,011,000    
Fair Value, Inputs, Level 3 | Fair Value, Measurements, Nonrecurring        
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]        
Loan balance individually evaluated 4,500,000 3,800,000    
Foreclosed assets 3,600,000 3,900,000    
Fair Value, Inputs, Level 3 | Fair Value, Measurements, Nonrecurring | Residential real estate | Residential real estate        
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]        
Residential mortgage loans in the process of foreclosure $ 5,100,000 $ 0    
Minimum | Measurement Input, Credit Spread        
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]        
Credit spread, securities at fair value through income 0.83% 0.83%    
Maximum | Measurement Input, Credit Spread        
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]        
Credit spread, securities at fair value through income 2.27% 2.27%