Quarterly report pursuant to Section 13 or 15(d)

Loans and Leases - Additional Information (Detail)

v3.19.3
Loans and Leases - Additional Information (Detail)
$ in Thousands
9 Months Ended
Sep. 30, 2019
USD ($)
SecurityLoan
Dec. 31, 2018
USD ($)
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Accrued interest receivable $ 11,723 $ 13,331
Loans and leases receivable pledged to secure advances 1,200,000 1,100,000
Loans and leases 90 days or more past due and still accruing 544 4
TDR loans receivable $ 60,800 10,300
Principal and interest due 3 months  
Reserves relating to loans included in allowance for loan losses $ 15,900 313
Increase in allowance 15,700  
Loans and lease receivables    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Accrued interest receivable 10,200 $ 10,900
Real estate loans    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Loans modified within last twelve months $ 44,000  
Number of loans modified within last twelve months | SecurityLoan 8  
Commercial and industrial loans    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Loans modified within last twelve months $ 12,600  
Number of loans modified within last twelve months | SecurityLoan 2  
Consumer loans    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Loans modified within last twelve months $ 500  
Number of loans modified within last twelve months | SecurityLoan 1