DERIVATIVE INSTRUMENTS AND OFFSETTING ASSETS AND LIABILITIES (Offsetting Of Derivative Assets And Liabilities) (Details) - USD ($) $ in Thousands	Sep. 30, 2015	Dec. 31, 2014	Sep. 30, 2014
Derivative [Line Items]
Gross Amount Recognized	$ 24,497	$ 24,181	$ 24,236
Gross Amount Offset
Net Amount Recognized	24,497	$ 24,181	$ 24,236
Financial Instruments
Financial Collateral Pledged
Net Amount	24,497	$ 24,181	$ 24,236
Gross Amount Recognized	446,871	$ 411,373	$ 453,898
Gross Amount Offset
Net Amount Recognized	446,871	$ 411,373	$ 453,898
Financial Instruments	(425,203)	(388,166)	(431,428)
Financial Collateral Pledged	(19,596)	(22,004)	(22,056)
Net Amount	2,072	1,203	414
Forward Commitments [Member]
Derivative [Line Items]
Gross Amount Recognized	4,901	$ 2,177	$ 2,180
Gross Amount Offset
Net Amount Recognized	4,901	$ 2,177	$ 2,180
Financial Instruments
Financial Collateral Pledged
Net Amount	4,901	$ 2,177	$ 2,180
Gross Amount Recognized	2,072	$ 1,203	$ 414
Gross Amount Offset
Net Amount Recognized	2,072	$ 1,203	$ 414
Financial Instruments
Financial Collateral Pledged
Net Amount	2,072	$ 1,203	$ 414
Loan/Lease Interest Rate Swaps [Member]
Derivative [Line Items]
Gross Amount Recognized	19,596	$ 22,004	$ 22,056
Gross Amount Offset
Net Amount Recognized	19,596	$ 22,004	$ 22,056
Financial Instruments
Financial Collateral Pledged
Net Amount	19,596	$ 22,004	$ 22,056
Gross Amount Recognized	19,596	$ 22,004	$ 22,056
Gross Amount Offset
Net Amount Recognized	19,596	$ 22,004	$ 22,056
Financial Instruments
Financial Collateral Pledged	(19,596)	$ (22,004)	$ (22,056)
Repurchase Arrangements [Member]
Derivative [Line Items]
Gross Amount Recognized	425,203	$ 388,166	$ 431,428
Gross Amount Offset
Net Amount Recognized	425,203	$ 388,166	$ 431,428
Financial Instruments	$ (425,203)	$ (388,166)	$ (431,428)
Financial Collateral Pledged