DERIVATIVE INSTRUMENTS (Details 2) - USD ($) $ in Thousands	Mar. 31, 2017	Dec. 31, 2016
Counterparty One
Notional amount
Net asset	$ 1,000	$ 2,600
Collateral posted	3,800	3,400
Counterparty Two
Notional amount
Net asset	100	1,000
Collateral posted	4,300	8,000
Counterparty Three
Notional amount
Net asset	6,500	7,500
Collateral held	9,900	11,300
Free-Standing Derivatives | Interest rate swaps
Notional amount
Notional	141,000	141,000
Free-Standing Derivatives | Foreign exchange forward contracts and options
Notional amount
Notional amount of liability	$ 409,485	$ 460,282