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DERIVATIVES (Summary of the Derivatives) (Details) - USD ($) $ in Thousands | Dec. 31, 2019 | Dec. 31, 2018
--- | --- | ---
Pay Fixed - Receive Floating Interest Rate Swaps | Not Designated as accounting hedges |  |
Summary of the derivative designated as a cash flow hedge |  |
Derivative, amount | $ 1,575,149 | $ 878,446
Asset | 753 | 10,120
Liabilities | 53,592 | 9,306
Pay Floating - Receive Fixed Interest Rate Swaps | Not Designated as accounting hedges |  |
Summary of the derivative designated as a cash flow hedge |  |
Derivative, amount | 1,575,149 | 878,446
Asset | 53,592 | 9,306
Liabilities | 753 | 10,120
Cash Flow Hedging | Designated as accounting hedges |  |
Summary of the derivative designated as a cash flow hedge |  |
Derivative, amount | 100,000 | 152,500
Asset | 0 | 0
Liabilities | 1,147 | 4,786
Fair Value Hedging | Designated as accounting hedges |  |
Summary of the derivative designated as a cash flow hedge |  |
Derivative, amount | 133,078 | 137,596
Asset | 182 | 1,872
Liabilities | $ 6,256 | $ 1,684

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