Annual report pursuant to Section 13 and 15(d)

Loans Receivable - Additional Information (Detail)

v3.22.4
Loans Receivable - Additional Information (Detail)
 12 Months Ended
Dec. 31, 2022
USD ($)
Property
Dec. 31, 2021
USD ($)
Property
Dec. 31, 2020
USD ($)
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Financing receivable $ 5,967,133,000 $ 5,151,541,000  
Accrued interest on loans 18,537,000 11,976,000  
Loans held for sale, at the lower of cost or fair value 8,043,000 13,342,000 $ 8,568,000
Gains on sale of second draw PPP loans 9,478,000 17,266,000 $ 5,247,000
Proceeds from sale of second draw PPP loans 156,109,000 261,853,000  
Loans 90 days or more past due and still accruing $ 0 $ 0  
Number of real estate properties | Property 1 1  
Other real estate owned ("OREO") $ 117,000 $ 675,000  
Reserves relating to loans included in allowance for credit losses $ 15,000 4,000  
Loans default payment past due period 30 days    
Total recorded investment $ 0    
Loans Pledged to Secure Advances      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Financing receivable 1,990,000,000 2,300,000,000  
60-89 Days Past Due      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Financing receivable 6,900,000 11,100,000  
Loans previously modified under provision of CARES Act 700,000    
30-59 Days Past Due      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Loans previously modified under provision of CARES Act 1,200,000    
90 Days or More Past Due      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Loans previously modified under provision of CARES Act 700,000    
Pass/Pass-Watch      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Financing receivable 5,841,928,000 4,995,614,000  
Special Mention      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Financing receivable 79,013,000 95,294,000  
Classified      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Financing receivable 46,192,000 60,633,000  
Loans | Accrued Interest      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Accrued interest on loans 16,000,000.0 10,100,000  
Payment Protection Program      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Financing receivable 900,000 3,000,000.0  
Payment Protection Program | 60-89 Days Past Due      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Loans Modified under provision of CARES Act   5,000,000  
Loans previously modified under provision of CARES Act   1,100,000  
Payment Protection Program | 30-59 Days Past Due      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Loans Modified under provision of CARES Act   47,000,000  
Loans previously modified under provision of CARES Act   1,200,000  
Payment Protection Program | 90 Days or More Past Due      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Loans previously modified under provision of CARES Act   1,100,000  
SBA Loans      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Loans held for sale, at the lower of cost or fair value $ 8,000,000.0 13,300,000  
PPP Loans      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Gains on sale of second draw PPP loans   3,000,000.0  
Proceeds from sale of second draw PPP loans   $ 132,700,000