DERIVATIVE INSTRUMENTS (Offsetting Of Derivative Assets And Liabilities) (Details) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2013	Dec. 31, 2012	Jun. 30, 2012
Offsetting Assets And Liabilities [Line Items]
Gross Amount Recognized	$ 43,768	$ 56,322	$ 60,068
Gross Amount Offset
Net Amount Recognized	43,768	56,322	60,068
Financial Instruments
Financial Collateral Pledged
Net Amount	43,768	56,322	60,068
Gross Amount Recognized	419,345	467,387	418,557
Gross Amount Offset
Net Amount Recognized	419,345	467,387	418,557
Financial Instruments	(382,871)	(414,611)	(361,990)
Financial Collateral Pledged	(35,345)	(52,154)	(55,093)
Net Amount	1,129	622	1,474
Forward Commitments [Member]
Offsetting Assets And Liabilities [Line Items]
Gross Amount Recognized	8,423	4,168	4,975
Gross Amount Offset
Net Amount Recognized	8,423	4,168	4,975
Financial Instruments
Financial Collateral Pledged
Net Amount	8,423	4,168	4,975
Gross Amount Recognized	1,129	622	1,474
Gross Amount Offset
Net Amount Recognized	1,129	622	1,474
Financial Instruments
Financial Collateral Pledged
Net Amount	1,129	622	1,474
Loan/Lease Interest Rate Swaps [Member]
Offsetting Assets And Liabilities [Line Items]
Gross Amount Recognized	35,345	52,154	55,093
Gross Amount Offset
Net Amount Recognized	35,345	52,154	55,093
Financial Instruments
Financial Collateral Pledged
Net Amount	35,345	52,154	55,093
Gross Amount Recognized	35,345	52,154	55,093
Gross Amount Offset
Net Amount Recognized	35,345	52,154	55,093
Financial Instruments
Financial Collateral Pledged	(35,345)	(52,154)	(55,093)
Repurchase Arrangements [Member]
Offsetting Assets And Liabilities [Line Items]
Gross Amount Recognized	382,871	414,611	361,990
Gross Amount Offset
Net Amount Recognized	382,871	414,611	361,990
Financial Instruments	(382,871)	(414,611)	(361,990)
Financial Collateral Pledged