DERIVATIVE INSTRUMENTS (Details) - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 31, 2015
Summary of aggregate notional amount and estimated net fair value of the derivative instruments
Estimated Fair Value	$ (33,399)	$ (3,040)
Free-Standing Derivatives: | Interest rate swaps
Summary of aggregate notional amount and estimated net fair value of the derivative instruments
Derivative asset, notional amount	281,333	297,667
Estimated Fair Value	(53,229)	(41,743)
Free-Standing Derivatives: | Foreign exchange forward contracts and options
Summary of aggregate notional amount and estimated net fair value of the derivative instruments
Derivative liability, notional amount	(383,238)	(375,524)
Estimated Fair Value	19,332	38,608
Free-Standing Derivatives: | Options
Summary of aggregate notional amount and estimated net fair value of the derivative instruments
Estimated Fair Value	$ 498	$ 95