DERIVATIVE FINANCIAL INSTRUMENTS (Details 3) (USD $)	3 Months Ended
	Mar. 31, 2012	Mar. 31, 2011
Derivative Instruments, Gain (Loss)
Termination value of derivatives in a net liability position	$ 16,800,000
Designated as Hedging Instrument
Derivative Instruments, Gain (Loss)
Net (losses) gains on derivative instruments	703,000
Designated as Hedging Instrument | Interest rate swaps | Interest Expense
Derivative Instruments, Gain (Loss)
Net (losses) gains on derivative instruments	703,000
Not Designated as Hedging Instrument
Derivative Instruments, Gain (Loss)
Net (losses) gains on derivative instruments	473,000	(141,000)
Not Designated as Hedging Instrument | Interest rate swaps | Noninterest Income
Derivative Instruments, Gain (Loss)
Net (losses) gains on derivative instruments	115,000	(60,000)
Not Designated as Hedging Instrument | Equity swap agreements | Noninterest Expense
Derivative Instruments, Gain (Loss)
Net (losses) gains on derivative instruments	2,000	2,000
Not Designated as Hedging Instrument | Foreign exchange options | Noninterest Income
Derivative Instruments, Gain (Loss)
Net (losses) gains on derivative instruments	253,000	(109,000)
Not Designated as Hedging Instrument | Foreign exchange options | Noninterest Expense
Derivative Instruments, Gain (Loss)
Net (losses) gains on derivative instruments	55,000	18,000
Not Designated as Hedging Instrument | Short-term Foreign Exchange | Noninterest Income
Derivative Instruments, Gain (Loss)
Net (losses) gains on derivative instruments	$ 48,000	$ 8,000