DERIVATIVE FINANCIAL INSTRUMENTS (Details 3) (USD $)	3 Months Ended		6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012	Jun. 30, 2011
Derivative Instruments, Gain (Loss)
Termination value of derivatives in a net liability position	$ 28,000,000		$ 28,000,000
Designated as Hedging Instrument
Derivative Instruments, Gain (Loss)
Net (losses) gains on derivative instruments	1,045,000	1,218,000	342,000	1,218,000
Designated as Hedging Instrument | Interest rate swaps | Interest Expense
Derivative Instruments, Gain (Loss)
Net (losses) gains on derivative instruments	1,045,000	1,218,000	342,000	1,218,000
Not Designated as Hedging Instrument
Derivative Instruments, Gain (Loss)
Net (losses) gains on derivative instruments	(443,000)	(76,000)	30,000	(225,000)
Not Designated as Hedging Instrument | Interest rate swaps | Noninterest Income
Derivative Instruments, Gain (Loss)
Net (losses) gains on derivative instruments	(423,000)	(210,000)	(308,000)	(270,000)
Not Designated as Hedging Instrument | Equity swap agreements | Noninterest Expense
Derivative Instruments, Gain (Loss)
Net (losses) gains on derivative instruments		1,000	2,000	3,000
Not Designated as Hedging Instrument | Foreign exchange options | Noninterest Income
Derivative Instruments, Gain (Loss)
Net (losses) gains on derivative instruments	(142,000)	99,000	111,000	(10,000)
Not Designated as Hedging Instrument | Foreign exchange options | Noninterest Expense
Derivative Instruments, Gain (Loss)
Net (losses) gains on derivative instruments	19,000	34,000	74,000	52,000
Not Designated as Hedging Instrument | Short-term Foreign Exchange | Noninterest Income
Derivative Instruments, Gain (Loss)
Net (losses) gains on derivative instruments	$ 103,000		$ 151,000