v3.26.1
Loans Receivable - Summary of Nonaccrual Loans by Segment of Loan Portfolio (Detail) - USD ($)
$ in Thousands
Mar. 31, 2026
Dec. 31, 2025
Financing Receivable, Nonaccrual [Line Items]    
Total nonaccrual loans with a related allowance $ 0 $ 0
Total nonaccrual loans without a related allowance 16,478 16,578
Commercial real estate [Member]    
Financing Receivable, Nonaccrual [Line Items]    
Total nonaccrual loans with a related allowance 0 0
Total nonaccrual loans without a related allowance 15,674 15,229
Commercial and industrial [Member]    
Financing Receivable, Nonaccrual [Line Items]    
Total nonaccrual loans with a related allowance 0 0
Total nonaccrual loans without a related allowance 361 1,257
Construction [Member]    
Financing Receivable, Nonaccrual [Line Items]    
Total nonaccrual loans with a related allowance 0 0
Total nonaccrual loans without a related allowance 0 92
Residential first-lien mortgage [Member]    
Financing Receivable, Nonaccrual [Line Items]    
Total nonaccrual loans with a related allowance 0 0
Total nonaccrual loans without a related allowance 443 0
Home equity/consumer [Member]    
Financing Receivable, Nonaccrual [Line Items]    
Total nonaccrual loans with a related allowance 0 0
Total nonaccrual loans without a related allowance $ 0 $ 0