DERIVATIVE INSTRUMENTS (Offsetting Of Derivative Assets And Liabilities) (Details) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2013	Dec. 31, 2012	Sep. 30, 2012
Offsetting Assets And Liabilities [Line Items]
Gross Amount Recognized	$ 35,413	$ 56,322	$ 62,771
Gross Amount Offset
Net Amount Recognized	35,413	56,322	62,771
Financial Instruments
Financial Collateral Pledged
Net Amount	35,413	56,322	62,771
Gross Amount Recognized	454,010	467,387	437,753
Gross Amount Offset
Net Amount Recognized	454,010	467,387	437,753
Financial Instruments	(418,623)	(414,611)	(377,676)
Financial Collateral Pledged	(33,130)	(52,154)	(55,706)
Net Amount	2,257	622	4,371
Forward Commitments [Member]
Offsetting Assets And Liabilities [Line Items]
Gross Amount Recognized	2,283	4,168	7,065
Gross Amount Offset
Net Amount Recognized	2,283	4,168	7,065
Financial Instruments
Financial Collateral Pledged
Net Amount	2,283	4,168	7,065
Gross Amount Recognized	2,257	622	4,371
Gross Amount Offset
Net Amount Recognized	2,257	622	4,371
Financial Instruments
Financial Collateral Pledged
Net Amount	2,257	622	4,371
Loan/Lease Interest Rate Swaps [Member]
Offsetting Assets And Liabilities [Line Items]
Gross Amount Recognized	33,130	52,154	55,706
Gross Amount Offset
Net Amount Recognized	33,130	52,154	55,706
Financial Instruments
Financial Collateral Pledged
Net Amount	33,130	52,154	55,706
Gross Amount Recognized	33,130	52,154	55,706
Gross Amount Offset
Net Amount Recognized	33,130	52,154	55,706
Financial Instruments
Financial Collateral Pledged	(33,130)	(52,154)	(55,706)
Repurchase Arrangements [Member]
Offsetting Assets And Liabilities [Line Items]
Gross Amount Recognized	418,623	414,611	377,676
Gross Amount Offset
Net Amount Recognized	418,623	414,611	377,676
Financial Instruments	(418,623)	(414,611)	(377,676)
Financial Collateral Pledged