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LOAN PORTFOLIO - Loan Modifications Considered Troubled Debt Restructurings Defaulted (Detail) $ in Thousands | 12 Months Ended
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Dec. 31, 2017 USD ($) numberofcontracts | Dec. 31, 2016 USD ($) numberofcontracts | Dec. 31, 2015 USD ($) numberofcontracts
Financing Receivable Modifications [Line Items] |  |  |
Number of contracts | numberofcontracts | 161 | 222 | 265
Recorded investment | $ | $ 6,045 | $ 8,934 | $ 19,214
Non Fha Va Residential Mortgage Loans [Member] |  |  |
Financing Receivable Modifications [Line Items] |  |  |
Number of contracts | numberofcontracts | 46 | 50 | 69
Recorded investment | $ | $ 5,355 | $ 7,673 | $ 10,240
Commercial Mortgage Loans [Member] |  |  |
Financing Receivable Modifications [Line Items] |  |  |
Number of contracts | numberofcontracts | 1 | 0 | 1
Recorded investment | $ | $ 57 | $ 0 | $ 2,179
Commercial And Industrial Loan [Member] |  |  |
Financing Receivable Modifications [Line Items] |  |  |
Number of contracts | numberofcontracts | 0 | 0 | 4
Recorded investment | $ | $ 0 | $ 0 | $ 5,745
Consumer Auto Loans [Member] |  |  |
Financing Receivable Modifications [Line Items] |  |  |
Number of contracts | numberofcontracts | 14 | 51 | 13
Recorded investment | $ | $ 207 | $ 764 | $ 159
Other Consumer Loans [Member] |  |  |
Financing Receivable Modifications [Line Items] |  |  |
Number of contracts | numberofcontracts | 99 | 119 | 172
Recorded investment | $ | $ 387 | $ 454 | $ 706
Finance Leases [Member] |  |  |
Financing Receivable Modifications [Line Items] |  |  |
Number of contracts | numberofcontracts | 1 | 2 | 6
Recorded investment | $ | $ 39 | $ 43 | $ 185

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- Definition Number of financing receivables that have been modified by troubled debt restructurings within the previous 12 months and for which there was a payment default. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 34 -URI http://asc.fasb.org/extlink&oid=84173941&loc=SL6953682-111524 + Details
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- Definition Amount of investment related to financing receivables modified by troubled debt restructurings within the previous 12 months, for which there was a payment default. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 34 -URI http://asc.fasb.org/extlink&oid=84173941&loc=SL6953682-111524 + Details
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