LOANS AND ALLOWANCE FOR LOAN LOSSES - Loan Summary (Details) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Components of loans
Proceeds of loans sold	$ 1,691,572	$ 1,338,341	$ 881,323
Mortgage fee income	35,673	29,472	$ 17,557
Total loans	1,052,865	1,032,170
Net deferred fees	897	1,100
Commercial and Non-Residential Real Estate
Components of loans
Total loans	757,516	729,319
Residential Real Estate
Components of loans
Total loans	215,452	217,366
Home Equity
Components of loans
Total loans	65,386	68,124
Consumer
Components of loans
Total loans	$ 14,511	$ 17,361

Represents the amount of mortgage fee income.

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+ References

No definition available.

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- Definition

Amount before allowance and after deduction of deferred interest and fees, unamortized costs and premiums and discounts from face amounts, of loans and leases held in portfolio, including but not limited to, commercial and consumer loans. Excludes loans and leases covered under loss sharing agreements.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 45
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=65884687&loc=d3e4428-111522

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- Definition

The cash inflow resulting from the sale of loans classified as held-for-sale, including proceeds from loans sold through mortgage securitization.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 16
-URI http://asc.fasb.org/extlink&oid=66902209&loc=d3e3337-108585

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-Name Accounting Standards Codification
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-Section 45
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-URI http://asc.fasb.org/extlink&oid=66902209&loc=d3e3461-108585

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-Name Accounting Standards Codification
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Amount of deferred fees paid by borrowers and unamortized costs incurred to originate loans and leases, unamortized loan commitments and loan syndication fees, and premiums over or discounts from face amounts of loans that are being amortized into income as an adjustment to yield. Excludes amounts for loans and leases covered under loss sharing agreements.

+ References

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-Topic 310
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