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LOAN PORTFOLIO - Loan Modifications Considered Troubled Debt Restructurings Defaulted (Detail)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2017
USD ($)
numberofcontracts
Sep. 30, 2016
USD ($)
numberofcontracts
Sep. 30, 2017
USD ($)
numberofcontracts
Sep. 30, 2016
USD ($)
numberofcontracts
Financing Receivable Modifications [Line Items]        
Number of Contracts | numberofcontracts 73 42 151 171
Recorded Investment | $ $ 2,077 $ 1,898 $ 5,319 $ 5,947
Non Fha Va Residential Mortgage Loans [Member]        
Financing Receivable Modifications [Line Items]        
Number of Contracts | numberofcontracts 16 14 38 35
Recorded Investment | $ $ 1,795 $ 1,707 $ 4,686 $ 4,863
Commercial Mortgage Loans [Member]        
Financing Receivable Modifications [Line Items]        
Number of Contracts | numberofcontracts     1 0
Recorded Investment | $     $ 57 $ 0
Consumer Auto Loans [Member]        
Financing Receivable Modifications [Line Items]        
Number of Contracts | numberofcontracts 4 5 13 45
Recorded Investment | $ $ 59 $ 68 $ 189 $ 702
Other Consumer Loans [Member]        
Financing Receivable Modifications [Line Items]        
Number of Contracts | numberofcontracts 53 22 99 89
Recorded Investment | $ $ 223 $ 93 $ 387 $ 339
Finance Leases [Member]        
Financing Receivable Modifications [Line Items]        
Number of Contracts | numberofcontracts 0 1 0 2
Recorded Investment | $ $ 0 $ 30 $ 0 $ 43