Annual report pursuant to Section 13 and 15(d)

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

v3.10.0.1
Loans and Leases - Troubled Debt Restructurings, Disaggregated by Type of Concession and by Loan Type (Detail) - USD ($)
$ in Thousands
Dec. 31, 2018
Dec. 31, 2017
Financing Receivable, Modifications [Line Items]    
Non-Accrual TDRs, Deferral of Principal $ 1,473 $ 2,877
Non-Accrual TDRs, Deferral of Principal and Interest 1,530 3,884
Non-Accrual TDRs, Reduction of Principal and Interest 843 1,237
Non-Accrual TDRs, Extension of Maturity 430 102
Non-Accrual TDRs, Total 4,276 8,100
Accrual TDRs, Deferral of Principal 3,345 3,415
Accrual TDRs, Deferral of Principal and Interest 166 182
Accrual TDRs, Reduction of Principal and Interest 1,627 1,998
Accrual TDRs, Extension of Maturity 891 1,664
Accrual TDRs 6,029 7,259
Real estate loans    
Financing Receivable, Modifications [Line Items]    
Non-Accrual TDRs, Deferral of Principal 462 1,935
Non-Accrual TDRs, Deferral of Principal and Interest 1,423 3,761
Non-Accrual TDRs, Reduction of Principal and Interest 174 64
Non-Accrual TDRs, Extension of Maturity 0 0
Non-Accrual TDRs, Total 2,059 5,760
Accrual TDRs, Deferral of Principal 3,345 3,409
Accrual TDRs, Deferral of Principal and Interest 0 0
Accrual TDRs, Reduction of Principal and Interest 1,148 1,387
Accrual TDRs, Extension of Maturity 741 1,237
Accrual TDRs 5,234 6,033
Commercial and industrial loans    
Financing Receivable, Modifications [Line Items]    
Non-Accrual TDRs, Deferral of Principal 265 131
Non-Accrual TDRs, Deferral of Principal and Interest 107 123
Non-Accrual TDRs, Reduction of Principal and Interest 669 1,173
Non-Accrual TDRs, Extension of Maturity 430 102
Non-Accrual TDRs, Total 1,471 1,529
Accrual TDRs, Deferral of Principal 0 6
Accrual TDRs, Deferral of Principal and Interest 166 182
Accrual TDRs, Reduction of Principal and Interest 386 503
Accrual TDRs, Extension of Maturity 150 427
Accrual TDRs 702 1,118
Consumer loans    
Financing Receivable, Modifications [Line Items]    
Non-Accrual TDRs, Deferral of Principal 746 811
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 746 811
Accrual TDRs, Deferral of Principal 0 0
Accrual TDRs, Deferral of Principal and Interest 0 0
Accrual TDRs, Reduction of Principal and Interest 93 108
Accrual TDRs, Extension of Maturity 0 0
Accrual TDRs $ 93 $ 108