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DERIVATIVES (Summary of the Derivatives) (Details) - USD ($) $ in Thousands | Dec. 31, 2020 | Dec. 31, 2019
--- | --- | ---
Pay Fixed - Receive Floating Interest Rate Swaps | Not Designated as accounting hedges |  |
Summary of the derivative designated as a cash flow hedge |  |
Derivative, amount | $ 2,356,453 | $ 1,575,149
Asset | 212 | 753
Liabilities | 163,148 | 53,592
Pay Floating - Receive Fixed Interest Rate Swaps | Not Designated as accounting hedges |  |
Summary of the derivative designated as a cash flow hedge |  |
Derivative, amount | 2,356,453 | 1,575,149
Asset | 163,148 | 53,592
Liabilities | 212 | 753
Cash Flow Hedging | Designated as accounting hedges |  |
Summary of the derivative designated as a cash flow hedge |  |
Derivative, amount | 0 | 100,000
Asset | 0 | 0
Liabilities | 0 | 1,147
Fair Value Hedging | Designated as accounting hedges |  |
Summary of the derivative designated as a cash flow hedge |  |
Derivative, amount | 124,726 | 133,078
Asset |  | 182
Liabilities | $ 12,483 | $ 6,256

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