DERIVATIVES AND HEDGING (Derivative Offsetting) (Details) - USD ($) $ in Thousands	Jun. 30, 2021	Dec. 31, 2020
Offsetting Derivative Assets [Abstract]
Derivative Assets, Gross Amounts Recognized	$ 28,038	$ 39,066
Derivative Assets, Amounts offsett in the Statement of Financial Condition	0	0
Derivative Assets, Net Amounts in the Statement of Financial Condition	28,038	39,066
Derivative Assets, Netting Adjustment Per Applicable Master Netting Agreements	0	0
Derivative Assets, Fair Value of Financial Collateral in the Statement of Financial Condiation	0	0
Derivative Assets, Net Amount	28,038	39,066
Offsetting Derivative Liabilities [Abstract]
Derivative Liabilities, Gross Amounts Recognized	26,671	39,204
Derivative Liabilities, Amounts offset in the Statement of Financial Condition	(10,205)	(16,868)
Derivative Liabilities, Net Amounts of the Statement of Financial Condition	16,466	22,336
Derivative Liabilities, Net Adjustment Per Applicable Master Netting Agreements	0	0
Derivative Liabilities, Fair Value of Financial Collateral in the Statement of Financial Condition	(13,951)	(22,220)
Derivative Liabilities, Net Amount	2,515	116
Interest rate swaps [Member]
Offsetting Derivative Assets [Abstract]
Derivative Assets, Gross Amounts Recognized	28,038	39,066
Derivative Assets, Amounts offsett in the Statement of Financial Condition	0	0
Derivative Assets, Net Amounts in the Statement of Financial Condition	28,038	39,066
Derivative Assets, Netting Adjustment Per Applicable Master Netting Agreements	0	0
Derivative Assets, Fair Value of Financial Collateral in the Statement of Financial Condiation	0	0
Derivative Assets, Net Amount	28,038	39,066
Offsetting Derivative Liabilities [Abstract]
Derivative Liabilities, Gross Amounts Recognized	26,671	39,204
Derivative Liabilities, Amounts offset in the Statement of Financial Condition	(10,205)	(16,868)
Derivative Liabilities, Net Amounts of the Statement of Financial Condition	16,466	22,336
Derivative Liabilities, Net Adjustment Per Applicable Master Netting Agreements	0	0
Derivative Liabilities, Fair Value of Financial Collateral in the Statement of Financial Condition	(13,951)	(22,220)
Derivative Liabilities, Net Amount	$ 2,515	$ 116