Quarterly report pursuant to Section 13 or 15(d)

Loans - Additional Information (Detail)

v3.23.1
Loans - Additional Information (Detail)
3 Months Ended
Mar. 31, 2023
USD ($)
Loan
Mar. 31, 2022
USD ($)
Loan
Dec. 31, 2022
USD ($)
Dec. 31, 2021
USD ($)
Accounts, Notes, Loans and Financing Receivable [Line Items]        
Accrued interest on loans $ 19,004,000   $ 18,537,000  
Loans receivable 5,980,458,000   5,967,133,000  
Loans held for sale, at the lower of cost or fair value 3,652,000 $ 15,617,000 8,043,000 $ 13,342,000
Gains on sale of second draw PPP loans 1,869,000 2,521,000    
Proceeds from sale of second draw PPP loans 29,699,000 29,577,000    
Interest income on nonaccrual loans $ 104,000 $ 27,000    
Number of loan modified | Loan 0 0    
Loans Pledged to Secure Advances        
Accounts, Notes, Loans and Financing Receivable [Line Items]        
Loans receivable $ 2,430,000,000   1,990,000,000  
Payment Protection Program        
Accounts, Notes, Loans and Financing Receivable [Line Items]        
Loans receivable 700,000   900,000  
SBA Loans        
Accounts, Notes, Loans and Financing Receivable [Line Items]        
Loans held for sale, at the lower of cost or fair value 3,700,000   $ 8,000,000.0  
Loans | Accrued Interest        
Accounts, Notes, Loans and Financing Receivable [Line Items]        
Accrued interest on loans $ 16,400,000     $ 16,000,000.0