DERIVATIVES (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Dec. 31, 2015
Derivatives designated as hedging instruments
Fair Values of Derivative Instruments
Notional Amount	$ 158,947	$ 199,503
Derivative assets	54	2,365
Derivative liabilities	1,468	5,213
Derivatives designated as hedging instruments | Interest rate swaps on certificates of deposit
Fair Values of Derivative Instruments
Notional Amount	73,496	112,913
Derivative assets	54	0
Derivative liabilities	1,038	5,213
Decrease in notional amounts	39,400
Derivatives designated as hedging instruments | Foreign currency forward contracts
Fair Values of Derivative Instruments
Notional Amount	85,451	86,590
Derivative assets	0	2,365
Derivative liabilities	430	0
Derivatives not designated as hedging instruments
Fair Values of Derivative Instruments
Notional Amount	7,452,056	7,190,926
Derivative assets	138,416	77,469
Derivative liabilities	136,627	76,679
Derivatives not designated as hedging instruments | Interest rate swaps and options
Fair Values of Derivative Instruments
Notional Amount	6,685,066	6,494,900
Derivative assets	129,599	67,215
Derivative liabilities	130,420	67,325
Derivatives not designated as hedging instruments | Foreign exchange contracts
Fair Values of Derivative Instruments
Notional Amount	724,894	652,993
Derivative assets	8,817	10,254
Derivative liabilities	6,196	9,350
Derivatives not designated as hedging instruments | Credit risk participation agreements (“RPAs”)
Fair Values of Derivative Instruments
Notional Amount	42,096	43,033
Derivative assets	0	0
Derivative liabilities	$ 11	$ 4