Quarterly report pursuant to Section 13 or 15(d)

DERIVATIVE FINANCIAL INSTRUMENTS (Cash flow hedges) (Details 2)

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DERIVATIVE FINANCIAL INSTRUMENTS (Cash flow hedges) (Details 2) - USD ($)
$ in Thousands
 3 Months Ended 9 Months Ended
Sep. 30, 2015
Sep. 30, 2014
Sep. 30, 2015
Sep. 30, 2014
Cash Flow Hedging        
Gains and (losses) recognized in other comprehensive income (loss) (OCI) for derivatives designated as effective cash flow hedges        
Amount of gain or (loss) recognized in OCI on derivatives (effective portion) $ 8,301 $ (21,133) $ 26,057 $ (1,596)
Amount of gain or (loss) reclassified from accumulated OCI into earnings (effective portion) 73 148 334 3,853
Hedged Other long term debt | Interest expense subordinated notes and other long term debt        
Increase or (decrease) to interest expense for derivatives designated as fair value hedges        
Increase or (decrease) to interest expense for derivatives designated as fair value hedges (36,283) 12,924 (48,546) 9,450
Hedged Subordinated notes | Interest expense subordinated notes and other long term debt        
Increase or (decrease) to interest expense for derivatives designated as fair value hedges        
Increase or (decrease) to interest expense for derivatives designated as fair value hedges (5,328) 6,601 (1,196) 2,520
Hedged Deposits | Interest expense deposits        
Increase or (decrease) to interest expense for derivatives designated as fair value hedges        
Increase or (decrease) to interest expense for derivatives designated as fair value hedges 259 315 709 809
Loans | Interest and fee income loans and leases | Cash Flow Hedging        
Gains and (losses) recognized in other comprehensive income (loss) (OCI) for derivatives designated as effective cash flow hedges        
Amount of gain or (loss) recognized in OCI on derivatives (effective portion) 8,301 (21,133) 26,057 (1,596)
Amount of gain or (loss) reclassified from accumulated OCI into earnings (effective portion) 73 148 323 3,853
Investment securities | Interest and fee income investment securities | Cash Flow Hedging        
Gains and (losses) recognized in other comprehensive income (loss) (OCI) for derivatives designated as effective cash flow hedges        
Amount of gain or (loss) recognized in OCI on derivatives (effective portion) 0 0 0 0
Amount of gain or (loss) reclassified from accumulated OCI into earnings (effective portion) 0 0 11 0
Deposits | Interest expense deposits        
Increase or (decrease) to interest expense for derivatives designated as fair value hedges        
Increase or (decrease) to interest expense for derivatives designated as fair value hedges (265) (323) (723) (829)
Subordinated notes | Interest expense subordinated notes and other long term debt        
Increase or (decrease) to interest expense for derivatives designated as fair value hedges        
Increase or (decrease) to interest expense for derivatives designated as fair value hedges 5,328 (6,601) 1,196 (2,520)
Other long-term debt | Interest expense subordinated notes and other long term debt        
Increase or (decrease) to interest expense for derivatives designated as fair value hedges        
Increase or (decrease) to interest expense for derivatives designated as fair value hedges $ 37,272 $ (13,196) $ 49,168 $ (6,943)