Quarterly report pursuant to Section 13 or 15(d)

Loans and Leases - Troubled Debt Restructurings, Disaggregated by Type of Concession and by Loan Type (Detail)

v3.19.1
Loans and Leases - Troubled Debt Restructurings, Disaggregated by Type of Concession and by Loan Type (Detail) - USD ($)
$ in Thousands
Mar. 31, 2019
Dec. 31, 2018
Financing Receivable, Modifications [Line Items]    
Non-Accrual TDRs, Deferral of Principal $ 3,976 $ 1,473
Non-Accrual TDRs, Deferral of Principal and Interest 1,650 1,530
Non-Accrual TDRs, Reduction of Principal and Interest 153 843
Non-Accrual TDRs, Extension of Maturity 1,163 430
Non-Accrual TDRs, Total 6,942 4,276
Accrual TDRs, Deferral of Principal 2,676 3,345
Accrual Tdrs Deferral Of Principal and Interest 0 166
Accrual TDRs, Reduction of Principal and Interest 200 1,627
Accrual TDRs, Extension of Maturity 171 891
Accrual TDRs 3,047 6,029
Real estate loans    
Financing Receivable, Modifications [Line Items]    
Non-Accrual TDRs, Deferral of Principal 2,083 462
Non-Accrual TDRs, Deferral of Principal and Interest 1,378 1,423
Non-Accrual TDRs, Reduction of Principal and Interest 153 174
Non-Accrual TDRs, Extension of Maturity 818 0
Non-Accrual TDRs, Total 4,432 2,059
Accrual TDRs, Deferral of Principal 2,127 3,345
Accrual Tdrs Deferral Of Principal and Interest 0 0
Accrual TDRs, Reduction of Principal and Interest 0 1,148
Accrual TDRs, Extension of Maturity 0 741
Accrual TDRs 2,127 5,234
Commercial and industrial loans    
Financing Receivable, Modifications [Line Items]    
Non-Accrual TDRs, Deferral of Principal 1,161 265
Non-Accrual TDRs, Deferral of Principal and Interest 272 107
Non-Accrual TDRs, Reduction of Principal and Interest 0 669
Non-Accrual TDRs, Extension of Maturity 345 430
Non-Accrual TDRs, Total 1,778 1,471
Accrual TDRs, Deferral of Principal 0 0
Accrual Tdrs Deferral Of Principal and Interest 0 166
Accrual TDRs, Reduction of Principal and Interest 112 386
Accrual TDRs, Extension of Maturity 171 150
Accrual TDRs 283 702
Consumer loans    
Financing Receivable, Modifications [Line Items]    
Non-Accrual TDRs, Deferral of Principal 732 746
Non-Accrual TDRs, Deferral of Principal and Interest 0 0
Non-Accrual TDRs, Reduction of Principal and Interest 0 0
Non-Accrual TDRs, Extension of Maturity 0 0
Non-Accrual TDRs, Total 732 746
Accrual TDRs, Deferral of Principal 549 0
Accrual Tdrs Deferral Of Principal and Interest 0 0
Accrual TDRs, Reduction of Principal and Interest 88 93
Accrual TDRs, Extension of Maturity 0 0
Accrual TDRs $ 637 $ 93