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LOANS AND LEASES AND ALLOWANCE FOR LOAN AND LEASE LOSSES - Nonaccrual Loans and Loans Past Due 90 Days Still on Accrual (Detail) - USD ($) $ in Thousands	9 Months Ended	12 Months Ended
	Sep. 30, 2017	Dec. 31, 2016
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans past due 90 days or more and still accruing	$ 0	$ 0
Nonaccrual loans and leases	12,275	14,942
Specific allowance on non accrual loans	251	0
Non-Traditional Mortgages (NTM)
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans past due 90 days or more and still accruing	0	0
Nonaccrual loans and leases	1,171	467
Traditional Loans
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans past due 90 days or more and still accruing	0	0
Nonaccrual loans and leases	$ 11,104	$ 14,475

X

- Definition

Financing Receivable, Recorded Investment, Nonaccrual Status, Allowance

+ References

No definition available.

+ Details

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X

- Definition

Recorded investment in financing receivables that are 90 days or more past due and still accruing.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 7
-Subparagraph (d)
-URI http://asc.fasb.org/extlink&oid=84173941&loc=d3e5111-111524

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X

- Definition

Recorded investment in financing receivables that are on nonaccrual status as of the balance sheet date.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 7
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=84173941&loc=d3e5111-111524

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- Definition

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+ References

No definition available.

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