DERIVATIVES (Details 5) - Derivatives not designated as hedging instruments - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Derivative Instruments, Gain (Loss) [Line Items]
Net gains (losses) recognized for not designated as hedging instruments	$ 4,202	$ (4,628)	$ 8,755	$ (1,691)
Interest rate swaps and options | Other fees and operating income
Derivative Instruments, Gain (Loss) [Line Items]
Net gains (losses) recognized for not designated as hedging instruments	411	(864)	(2,219)	(243)
Foreign exchange contracts | Foreign exchange income
Derivative Instruments, Gain (Loss) [Line Items]
Net gains (losses) recognized for not designated as hedging instruments	3,787	(3,764)	10,982	(1,548)
RPAs | Other fees and operating income
Derivative Instruments, Gain (Loss) [Line Items]
Net gains (losses) recognized for not designated as hedging instruments	4	0	(8)	0
Foreign exchange options | Foreign exchange income
Derivative Instruments, Gain (Loss) [Line Items]
Net gains (losses) recognized for not designated as hedging instruments	0	0	0	236
Embedded derivative liabilities | Other operating expense
Derivative Instruments, Gain (Loss) [Line Items]
Net gains (losses) recognized for not designated as hedging instruments	$ 0	$ 0	$ 0	$ (136)