DERIVATIVES (OCI ROLLFORWARD) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
DERIVATIVES [ABSTRACT]
Aggregate unrealized net gain/(loss) at beginning of year	$ (8,278)	$ (15,746)	$ (32,393)
Add: Net gain/(loss) from change in fair value of cash flow hedges	15,545	20,278	31,053
Less: Net (gain)/loss reclassified to earnings from effective hedges	(3,085)	(12,810)	(14,406)
Aggregate unrealized net gain/(loss) at end of period	$ 4,182	$ (8,278)	$ (15,746)