Quarterly report pursuant to Section 13 or 15(d)

Loans and Leases - Troubled Debt Restructurings that Defaulted Subsequent to Modifications Occurring Within Previous Twelve Months, Disaggregated by Loan Class (Detail)

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Loans and Leases - Troubled Debt Restructurings that Defaulted Subsequent to Modifications Occurring Within Previous Twelve Months, Disaggregated by Loan Class (Detail)
$ in Thousands
3 Months Ended 6 Months Ended
Jun. 30, 2016
USD ($)
SecurityLoan
Jun. 30, 2016
USD ($)
SecurityLoan
Real estate loans [Member]    
Financing Receivable, Modifications [Line Items]    
Number of Loans | SecurityLoan   1
Recorded Investment | $   $ 399
Commercial and industrial loans [Member] | Commercial term [Member]    
Financing Receivable, Modifications [Line Items]    
Number of Loans | SecurityLoan 1 2
Recorded Investment | $ $ 55 $ 85