Quarterly report pursuant to Section 13 or 15(d)

DERIVATIVES (Summary of the Derivatives) (Details)

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DERIVATIVES (Summary of the Derivatives) (Details) - USD ($)
$ in Thousands
Mar. 31, 2021
Dec. 31, 2020
Pay Fixed - Receive Floating Interest Rate Swaps | Not Designated as accounting hedges    
Summary of the derivative designated as a cash flow hedge    
Derivative, amount $ 2,393,919 $ 2,356,453
Asset 22,420 212
Liabilities 84,030 163,148
Pay Floating - Receive Fixed Interest Rate Swaps | Not Designated as accounting hedges    
Summary of the derivative designated as a cash flow hedge    
Derivative, amount 2,393,919 2,356,453
Asset 84,030 163,148
Liabilities 22,420 212
Cash Flow Hedging    
Summary of the derivative designated as a cash flow hedge    
Derivative, amount 200,000  
Cash Flow Hedging | Designated as accounting hedges    
Summary of the derivative designated as a cash flow hedge    
Derivative, amount 200,000 0
Asset 0 0
Liabilities 1,808 0
Fair Value Hedging | Designated as accounting hedges    
Summary of the derivative designated as a cash flow hedge    
Derivative, amount 171,323 124,726
Asset 2,139  
Liabilities $ 7,949 $ 12,483