Derivatives (Schedule Of Derivative Activities Associated With Trust Preferred Loans) (Details) (USD $) In Thousands, unless otherwise specified				3 Months Ended
	Mar. 31, 2013	Dec. 31, 2012	Mar. 31, 2012	Mar. 31, 2013 Hedging Instruments [Member] Loan Portfolio Hedging [Member] Interest Rate Swap [Member]	Mar. 31, 2012 Hedging Instruments [Member] Loan Portfolio Hedging [Member] Interest Rate Swap [Member]	Mar. 31, 2013 Hedged Items [Member] Loan Portfolio Hedging [Member] Trust Preferred Loans [Member]		Mar. 31, 2012 Hedged Items [Member] Loan Portfolio Hedging [Member] Trust Preferred Loans [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Notional				$ 21,500	$ 196,250
Loans, net of unearned income	15,889,670	16,708,582	15,971,330			21,500	[1],[2]	196,250	[1],[2]
Interest Rate Derivative Liabilities at Fair Value				1,456	7,017
Gains/(Losses)				587	1,792
Gains/(Losses)						$ (587)	[1],[3]	$ (1,790)	[1],[3]

[1] Assets included in the Loans, net of unearned income section of the Consolidated Condensed Statements of Condition.

[2] Represents principal balance being hedged.

[3] Represents gains and losses attributable to changes in fair value due to interest rate risk as designated in ASC 815-20 hedging relationships.