Quarterly report pursuant to Section 13 or 15(d)

Loans - Additional Information (Detail)

v3.22.2
Loans - Additional Information (Detail)
3 Months Ended 6 Months Ended 12 Months Ended
Jun. 30, 2022
USD ($)
Loan
Jun. 30, 2021
USD ($)
Jun. 30, 2022
USD ($)
Jun. 30, 2021
USD ($)
Dec. 31, 2021
USD ($)
Loan
Mar. 31, 2022
USD ($)
Mar. 31, 2021
USD ($)
Dec. 31, 2020
USD ($)
Accounts, Notes, Loans and Financing Receivable [Line Items]                
Accrued interest on loans $ 14,044,000   $ 14,044,000   $ 11,976,000      
Loans 5,655,402,000   5,655,402,000   5,151,541,000      
Loans held for sale, at the lower of cost or fair value 18,528,000 $ 36,030,000 18,528,000 $ 36,030,000 13,342,000 $ 15,617,000 $ 32,674,000 $ 8,568,000
Gains on sale of second draw PPP loans     5,295,000 7,633,000        
Proceeds from sale of second draw PPP loans 41,937,000 35,760,000 71,514,000 53,833,000        
Interest income on nonaccrual loans 9,000 136,000 36,000 287,000,000,000        
TDR loans receivable 2,300,000   $ 2,300,000   $ 2,900,000      
Loans default payment past due period     30 days          
Total recorded investment $ 91,000   $ 91,000          
Number of loans defaulted | Loan 0       0      
Loans Pledged to Secure Advances                
Accounts, Notes, Loans and Financing Receivable [Line Items]                
Loans $ 2,450,000,000   2,450,000,000   $ 2,300,000,000      
Payment Protection Program                
Accounts, Notes, Loans and Financing Receivable [Line Items]                
Loans 1,100,000   1,100,000   3,000,000.0      
SBA Loans                
Accounts, Notes, Loans and Financing Receivable [Line Items]                
Loans held for sale, at the lower of cost or fair value 18,500,000   18,500,000   13,300,000      
PPP Loans                
Accounts, Notes, Loans and Financing Receivable [Line Items]                
Gains on sale of second draw PPP loans   200,000   2,700,000        
Proceeds from sale of second draw PPP loans   $ 9,500,000   $ 118,100,000        
Loans | Accrued Interest                
Accounts, Notes, Loans and Financing Receivable [Line Items]                
Accrued interest on loans $ 12,000,000.0   $ 12,000,000.0   $ 10,100,000