DERIVATIVES (OCI ROLLFORWARD) (DETAILS) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
DERIVATIVES [ABSTRACT]
Aggregate unrealized net gain/(loss) at beginning of year	$ (24,209)	$ (21,406)	$ (32,393)	$ (26,885)
Add: Net gain/(loss) from change in fair value of cash flow hedges	7,448	(145)	19,768	8,887
Less: Net (gain)/loss reclassified to earnings from effective hedges	(2,969)	(3,457)	(7,105)	(7,010)
Aggregate unrealized net gain/(loss) at end of period	$ (19,730)	$ (25,008)	$ (19,730)	$ (25,008)