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DERIVATIVES (Details 4) - USD ($) | 3 Months Ended | 12 Months Ended |
--- | --- | --- | ---
Mar. 31, 2016 | Dec. 31, 2015 | Mar. 31, 2015
Derivative [Line Items] |  |  |
Fair value of derivative assets | $ 6,470,000 | $ 8,733,000 |
Fair value of derivative liabilities | 135,938,000 | 78,779,000 |
Credit Risk-Related Contingent Feature |  |  |
Additional collateral required if credit rating is downgraded below investment grade | 0 | 0 |
Derivatives not designated as hedging instruments |  |  |
Derivative [Line Items] |  |  |
Derivative assets | 138,416,000 | 77,469,000 |
Derivative liabilities | 136,627,000 | 76,679,000 |
Notional Amount | 7,452,056,000 | 7,190,926,000 |
Derivatives not designated as hedging instruments | Interest rate swaps and options |  |  |
Derivative [Line Items] |  |  |
Notional amount of derivative assets | 3,340,000,000 | 3,250,000,000 |
Notional amount of derivative liabilities | 3,340,000,000 | 3,250,000,000 |
Derivative assets | 129,599,000 | 67,215,000 |
Derivative liabilities | 130,420,000 | 67,325,000 |
Notional Amount | 6,685,066,000 | 6,494,900,000 |
Derivatives not designated as hedging instruments | Short-term foreign exchange contracts |  |  |
Derivative [Line Items] |  |  |
Derivative assets | 8,800,000 | 10,300,000 |
Derivative liabilities | 6,200,000 | 9,400,000 |
Notional Amount | 724,900,000 | 653,000,000 |
Derivatives not designated as hedging instruments | Credit risk participation agreements (“RPAs”) |  |  |
Derivative [Line Items] |  |  |
Derivative assets | 0 | 0 |
Derivative liabilities | 11,000 | 4,000 |
Notional Amount | 42,096,000 | 43,033,000 |
Interest rate derivative exposure | $ 573,000 | $ 257,000 |
Weighted average remaining maturity | 3 years | 3 years 2 months |
Derivatives not designated as hedging instruments | Credit risk participation agreements (“RPAs”) | Long |  |  |
Derivative [Line Items] |  |  |
Notional Amount | $ 33,500,000 | $ 33,700,000 |
Derivatives not designated as hedging instruments | Credit risk participation agreements (“RPAs”) | Short |  |  |
Derivative [Line Items] |  |  |
Notional Amount | $ 8,600,000 | $ 9,300,000 |
Derivatives not designated as hedging instruments | Foreign exchange options |  |  |
Derivative [Line Items] |  |  |
Notional Amount |  |  | $ 50,000,000
Term of contract | 5 years |  |
Fair value of derivative assets |  |  | 3,700,000
Derivatives not designated as hedging instruments | Embedded derivative liabilities |  |  |
Derivative [Line Items] |  |  |
Notional Amount |  |  | 47,800,000
Fair value of derivative liabilities |  |  | $ 3,400,000

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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 The aggregate fair value of additional assets that would be required to be posted as collateral for derivative instruments with credit-risk-related contingent features if the credit-risk-related contingent features were triggered at the end of the reporting period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4H -Subparagraph (e) -URI http://asc.fasb.org/extlink&oid=56946850&loc=SL5624258-113959 + Details
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