Quarterly report pursuant to Section 13 or 15(d)

Loans - Troubled Debt Restructurings, Disaggregated by Loan Class (Detail)

v2.4.0.8
Loans - Troubled Debt Restructurings, Disaggregated by Loan Class (Detail) (USD $)
In Thousands, unless otherwise specified
3 Months Ended
Mar. 31, 2014
SecurityLoan
Mar. 31, 2013
SecurityLoan
Financing Receivable, Modifications [Line Items]    
Number of Loans 7 4
Pre-Modification Outstanding Recorded Investment $ 2,022 $ 1,789
Post-Modification Outstanding Recorded Investment 1,973 1,635
Real estate loans [Member] | Other [Member]
   
Financing Receivable, Modifications [Line Items]    
Number of Loans 1   
Pre-Modification Outstanding Recorded Investment 943  
Post-Modification Outstanding Recorded Investment 943  
Commercial and industrial loans [Member] | Commercial term [Member]
   
Financing Receivable, Modifications [Line Items]    
Number of Loans 5 2
Pre-Modification Outstanding Recorded Investment 829 205
Post-Modification Outstanding Recorded Investment 788 205
Commercial and industrial loans [Member] | Commercial lines of credit [Member]
   
Financing Receivable, Modifications [Line Items]    
Number of Loans 1   
Pre-Modification Outstanding Recorded Investment 250  
Post-Modification Outstanding Recorded Investment 242  
Commercial and industrial loans [Member] | International loans [Member]
   
Financing Receivable, Modifications [Line Items]    
Number of Loans    2
Pre-Modification Outstanding Recorded Investment   1,584
Post-Modification Outstanding Recorded Investment   $ 1,430