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LOAN PORTFOLIO - Loan Modifications Considered Troubled Debt Restructurings Defaulted (Detail) $ in Thousands	12 Months Ended
	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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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

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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

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