DERIVATIVE FINANCIAL INSTRUMENTS (Details 3) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012	Sep. 30, 2011
Designated as Hedging Instrument
Derivative Instruments, Gain (Loss)
Net (losses) gains on derivative instruments	$ (741)	$ 1,740	$ (399)	$ 2,958
Designated as Hedging Instrument | Interest rate swaps | Interest Expense
Derivative Instruments, Gain (Loss)
Net (losses) gains on derivative instruments	(741)	1,740	(399)	2,958
Not Designated as Hedging Instrument
Derivative Instruments, Gain (Loss)
Net (losses) gains on derivative instruments	264	(1,981)	294	(1,654)
Not Designated as Hedging Instrument | Equity swap agreements | Noninterest Expense
Derivative Instruments, Gain (Loss)
Net (losses) gains on derivative instruments		(1)	2	2
Not Designated as Hedging Instrument | Foreign exchange options | Noninterest Income
Derivative Instruments, Gain (Loss)
Net (losses) gains on derivative instruments	(28)	(211)	83	(221)
Not Designated as Hedging Instrument | Foreign exchange options | Noninterest Expense
Derivative Instruments, Gain (Loss)
Net (losses) gains on derivative instruments	16	(51)	90	(1)
Not Designated as Hedging Instrument | Interest rate swaps | Noninterest Income
Derivative Instruments, Gain (Loss)
Net (losses) gains on derivative instruments	296	(832)	(12)	(1,102)
Not Designated as Hedging Instrument | Short-term Foreign Exchange | Noninterest Income
Derivative Instruments, Gain (Loss)
Net (losses) gains on derivative instruments	$ (20)	$ 886	$ 131	$ 332