DERIVATIVE FINANCIAL INSTRUMENTS AND BALANCE SHEET OFFSETTING (Details 3) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
Designated as Hedging Instrument
Derivative Instruments, Gain (Loss)
Net (losses) gains on derivative instruments	$ (905)	$ (703)
Designated as Hedging Instrument | Interest rate swaps | Interest Expense
Derivative Instruments, Gain (Loss)
Net (losses) gains on derivative instruments	(905)	(703)
Not Designated as Hedging Instrument
Derivative Instruments, Gain (Loss)
Net (losses) gains on derivative instruments	321	473
Not Designated as Hedging Instrument | Equity swap agreements | Noninterest Expense
Derivative Instruments, Gain (Loss)
Net (losses) gains on derivative instruments		2
Not Designated as Hedging Instrument | Foreign exchange options | Noninterest Income
Derivative Instruments, Gain (Loss)
Net (losses) gains on derivative instruments	140	253
Not Designated as Hedging Instrument | Foreign exchange options | Noninterest Expense
Derivative Instruments, Gain (Loss)
Net (losses) gains on derivative instruments	8	55
Not Designated as Hedging Instrument | Interest rate swaps | Noninterest Income
Derivative Instruments, Gain (Loss)
Net (losses) gains on derivative instruments	216	115
Not Designated as Hedging Instrument | Short-term Foreign Exchange | Noninterest Income
Derivative Instruments, Gain (Loss)
Net (losses) gains on derivative instruments	$ (43)	$ 48