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DERIVATIVE FINANCIAL INSTRUMENTS AND HEDGING ACTIVITIES - Derivative Assets and Liabilities (Details) - USD ($) $ in Thousands | 3 Months Ended | 12 Months Ended
--- | --- | ---
Mar. 31, 2017 | Mar. 31, 2016 | Dec. 31, 2016
Interest rate swap agreements and non-hedging derivative assets and liabilities |  |  |
Notional Amount | $ 115,585 |  |
Estimated Fair Value Asset (Liability) | 1,430 |  |
Designated as Hedging Instrument | Cash flow hedges: |  |  |
Interest rate swap agreements and non-hedging derivative assets and liabilities |  |  |
Notional Amount | $ 90,000 |  |
Weighted Average Maturity (in years) | 5 years 10 months 24 days |  |
Estimated Fair Value Asset (Liability) | $ 1,387 |  |
Designated as Hedging Instrument | Cash flow hedges: | Interest Rate Cap Agreements |  |  |
Interest rate swap agreements and non-hedging derivative assets and liabilities |  |  |
Notional Amount | $ 90,000 |  | $ 90,000
Weighted Average Maturity (in years) | 5 years 10 months 24 days |  | 6 years 1 month 6 days
Estimated Fair Value Asset (Liability) | $ 1,387 |  | $ 1,748
Realized gain (loss) interest income | 39 | $ 3 |
Designated as Hedging Instrument | Economic hedges: |  |  |
Interest rate swap agreements and non-hedging derivative assets and liabilities |  |  |
Notional Amount | $ 13,379 |  |
Weighted Average Maturity (in years) | 2 months 12 days |  |
Estimated Fair Value Asset (Liability) | $ (55) |  |
Designated as Hedging Instrument | Economic hedges: | Forward sale commitments |  |  |
Interest rate swap agreements and non-hedging derivative assets and liabilities |  |  |
Notional Amount | $ 13,379 |  |
Weighted Average Maturity (in years) | 2 months 12 days |  |
Estimated Fair Value Asset (Liability) | $ (55) |  |
Realized gain (loss) interest income | (78) | 0 |
Not Designated as Hedging Instrument |  |  |
Interest rate swap agreements and non-hedging derivative assets and liabilities |  |  |
Notional Amount | $ 12,206 |  |
Weighted Average Maturity (in years) | 2 months 12 days |  |
Estimated Fair Value Asset (Liability) | $ 98 |  |
Not Designated as Hedging Instrument | Interest Rate Lock Commitment |  |  |
Interest rate swap agreements and non-hedging derivative assets and liabilities |  |  |
Notional Amount | $ 12,206 |  |
Weighted Average Maturity (in years) | 2 months 12 days |  |
Estimated Fair Value Asset (Liability) | $ 98 |  |
Realized gain (loss) interest income | $ 2 | $ 0 |

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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 Fair values as of the balance sheet date of the net amount of all assets and liabilities resulting from contracts that meet the criteria of being accounted for as derivative instruments. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 45 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=6945355&loc=d3e41228-113958 + 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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- References No definition available. + Details
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- Definition The difference between the book value and the sale price of options, swaps, futures, forward contracts, and other derivative instruments. This element refers to the gain (loss) included in earnings. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 225 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-04.13(h)) -URI http://asc.fasb.org/extlink&oid=6879574&loc=d3e536633-122882 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=66902209&loc=d3e3602-108585 + Details
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