v3.26.1
Disclosures of Fair Values of Financial Instruments - Additional Information (Details) - USD ($)
6 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Mar. 31, 2026
Dec. 31, 2025
Mar. 31, 2025
Dec. 31, 2024
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]            
Allowance for credit losses $ 86,989,000 $ 71,160,000 $ 86,814,000 $ 74,875,000 $ 70,051,000 $ 70,182,000
Other real estate owned 5,803,000     2,857,000    
Mortgage Servicing Rights            
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]            
Finite-lived intangible assets, net 4,104,000 5,081,000   4,566,000   $ 5,629,000
Mortgage servicing rights (MSR) impairment (recovery) 0 $ (1,000)        
Fair Value, Nonrecurring            
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]            
Carrying amount of loans with a specific allowance 24,600,000     11,000,000    
Fair value of loans with a specific allowance 23,400,000     10,400,000    
Allowance for credit losses 1,200,000     605,000    
Fair Value, Nonrecurring | Carrying Amount            
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]            
Other real estate owned 5,800,000     2,900,000    
Fair Value, Nonrecurring | Fair Value            
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]            
Other real estate owned $ 267,000     $ 605,000