DERIVATIVES (OCI ROLLFORWARD) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
DERIVATIVES [ABSTRACT]
Aggregate unrealized net gain/(loss) at beginning of year	$ 4,182	$ (8,278)	$ (15,746)
Add: Net gain/(loss) from change in fair value of cash flow hedges	2,321	15,545	20,278
Less: Net (gain)/loss reclassified to earnings from effective hedges	1,928	(3,085)	(12,810)
Aggregate unrealized net gain/(loss) at end of period	$ 8,431	$ 4,182	$ (8,278)