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DERIVATIVE FINANCIAL INSTRUMENTS AND HEDGING ACTIVITIES - Derivative Instruments (Details) - USD ($) $ in Thousands | 12 Months Ended |
--- | --- | ---
Dec. 31, 2018 | Dec. 31, 2017 | Dec. 31, 2014
Interest rate swap agreements and non-hedging derivative assets and liabilities |  |  |
Notional Amount | $ 182,239 |  |
Interest rate caps agreements |  |  |
Derivative [Line Items] |  |  |
Premiums paid |  |  | $ 4,600
Interest rate swap agreements and non-hedging derivative assets and liabilities |  |  |
Cap interest rate |  |  | 3.00%
Effective interest rate |  |  | 3.00%
Designated as Hedging Instrument | Cash flow hedges: |  |  |
Interest rate swap agreements and non-hedging derivative assets and liabilities |  |  |
Weighted Average Maturity | 4 years 1 month 6 days |  |
Notional Amount | $ 90,000 | $ 90,000 |
Estimated Fair Value Asset (Liability) | $ 803 | $ 669 |
Designated as Hedging Instrument | Cash flow hedges: | Interest rate caps agreements |  |  |
Interest rate swap agreements and non-hedging derivative assets and liabilities |  |  |
Weighted Average Maturity | 4 years 1 month 6 days | 5 years 1 month 6 days |
Notional Amount | $ 90,000 | $ 90,000 |
Estimated Fair Value Asset (Liability) | 803 | 669 |
Realized gain (loss) | (519) | (257) |
Designated as Hedging Instrument | Economic hedges: |  |  |
Interest rate swap agreements and non-hedging derivative assets and liabilities |  |  |
Notional Amount |  | 20,352 |
Estimated Fair Value Asset (Liability) |  | $ (221) |
Designated as Hedging Instrument | Economic hedges: | Forward sale commitments |  |  |
Interest rate swap agreements and non-hedging derivative assets and liabilities |  |  |
Weighted Average Maturity |  | 2 months 12 days |
Notional Amount |  | $ 20,352 |
Estimated Fair Value Asset (Liability) |  | (221) |
Realized gain (loss) | 221 | (77) |
Not Designated as Hedging Instrument |  |  |
Interest rate swap agreements and non-hedging derivative assets and liabilities |  |  |
Notional Amount | 92,239 | 130,205 |
Estimated Fair Value Asset (Liability) | $ 8 | $ 447 |
Not Designated as Hedging Instrument | Interest rate lock commitments |  |  |
Interest rate swap agreements and non-hedging derivative assets and liabilities |  |  |
Weighted Average Maturity | 1 month 6 days | 2 months 12 days |
Notional Amount | $ 957 | $ 19,853 |
Estimated Fair Value Asset (Liability) | 8 | (1) |
Realized gain (loss) | $ 9 | (22) |
Not Designated as Hedging Instrument | Customer loan derivative liability |  |  |
Interest rate swap agreements and non-hedging derivative assets and liabilities |  |  |
Weighted Average Maturity | 9 years 10 months 24 days |  |
Notional Amount | $ 45,641 | 19,853 |
Estimated Fair Value Asset (Liability) | $ (1,353) | $ (1) |
Not Designated as Hedging Instrument | Customer loan derivative asset |  |  |
Interest rate swap agreements and non-hedging derivative assets and liabilities |  |  |
Weighted Average Maturity | 9 years 10 months 24 days |  |
Notional Amount | $ 45,641 |  |
Estimated Fair Value Asset (Liability) | 1,353 |  |
Liability | Not Designated as Hedging Instrument |  |  |
Interest rate swap agreements and non-hedging derivative assets and liabilities |  |  |
Estimated Fair Value Asset (Liability) | $ 811 |  |

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- Definition Aggregate notional amount specified by the derivative(s). Expressed as an absolute value. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Article 12 -Section 13 -Sentence Column B + Details
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- Definition Effective interest rate for the funds borrowed under the debt agreement considering interest compounding and original issue discount or premium. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 20 -Section 50 -Paragraph 6 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=109500613&loc=SL6036836-161870 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=114775744&loc=d3e28551-108399 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.22(a)(1)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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- Definition Average remaining period until maturity of the derivative contract, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References No definition available. + Details
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