Quarterly report pursuant to Section 13 or 15(d)

Loans - Additional Information (Detail)

v3.24.1.u1
Loans - Additional Information (Detail)
3 Months Ended
Mar. 31, 2024
USD ($)
Loan
Mar. 31, 2023
USD ($)
Loan
Dec. 31, 2023
USD ($)
Dec. 31, 2022
USD ($)
Accounts, Notes, Loans and Financing Receivable [Line Items]        
Accrued interest on loans $ 23,032,000   $ 23,371,000  
Pledged loans receivable, carrying value 2,450,000,000   2,360,000,000  
Loans receivable 6,177,840,000   6,182,434,000  
Loans held for sale, at the lower of cost or fair value 3,999,000 $ 3,652,000 12,013,000 $ 8,043,000
Gains on sale of second draw PPP loans 1,482,000 1,869,000    
Proceeds from sale of second draw PPP loans 25,587,000 29,699,000    
Interest income on nonaccrual loans $ 9,000 $ 104,000    
Number of loan modified | Loan 0 0    
Other real estate owned ("OREO") $ 117,000   117,000  
Loans Pledged to Secure Advances        
Accounts, Notes, Loans and Financing Receivable [Line Items]        
Pledged loans receivable, carrying value 2,450,000,000   2,360,000,000  
Payment Protection Program        
Accounts, Notes, Loans and Financing Receivable [Line Items]        
Loans receivable 100,000   200,000  
Prepaid Expenses and Other Assets        
Accounts, Notes, Loans and Financing Receivable [Line Items]        
Other real estate owned ("OREO") 100,000   100,000  
Loans | Accrued Interest        
Accounts, Notes, Loans and Financing Receivable [Line Items]        
Accrued interest on loans $ 19,500,000   $ 19,800,000