DERIVATIVE FINANCIAL INSTRUMENTS AND BALANCE SHEET OFFSETTING (Details) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2014		Dec. 31, 2013
Designated as Hedging Instrument
Fair Values of Derivative Instruments
Notional amount	$ 135,000		$ 135,000
Derivative liabilities	14,202	[1]	16,906	[1]
Designated as Hedging Instrument | Interest rate swaps
Fair Values of Derivative Instruments
Notional amount	135,000		135,000
Derivative liabilities	14,202	[1]	16,906	[1]
Not Designated as Hedging Instrument
Fair Values of Derivative Instruments
Notional amount	2,596,494		2,441,936
Derivative assets	36,586	[1]	40,549	[1]
Derivative liabilities	32,576	[1]	33,356	[1]
Not Designated as Hedging Instrument | Foreign exchange options
Fair Values of Derivative Instruments
Notional amount	85,614		85,614
Derivative assets	5,915	[1]	6,290	[1]
Derivative liabilities	3,398	[1]	3,655	[1]
Not Designated as Hedging Instrument | Interest rate swaps
Fair Values of Derivative Instruments
Notional amount	2,024,211		1,915,474
Derivative assets	26,293	[1]	28,078	[1]
Derivative liabilities	25,503	[1]	26,352	[1]
Not Designated as Hedging Instrument | Foreign exchange contracts
Fair Values of Derivative Instruments
Notional amount	486,669		440,848
Derivative assets	4,378	[1]	6,181	[1]
Derivative liabilities	$ 3,675	[1]	$ 3,349	[1]

[1] Derivative assets, which are a component of other assets, include the estimated settlement of the derivative asset position. Derivative liabilities, which are a component of other liabilities and deposits, include the estimated settlement of the derivative liability position.