Derivatives (Schedule Of Derivative Activities Associated With Trust Preferred Loans) (Details) - USD ($) $ in Thousands		Mar. 31, 2017		Dec. 31, 2016		Mar. 31, 2016
Derivative Instruments, Gain (Loss) [Line Items]
Loans, net of unearned income		$ 19,090,074	[1]	$ 19,589,520	[1]	$ 17,574,994
Loan Portfolio Hedging [Member] | Hedging Instruments [Member] | Interest Rate Swap [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Notional		6,500		6,500
Liabilities		134		208
Loan Portfolio Hedging [Member] | Hedged Items [Member] | Trust Preferred Loans [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Loans, net of unearned income	[2],[3]	$ 6,500		$ 6,500

[1] March 31, 2017 and December 31, 2016 include $30.3 million and $28.5 million, respectively, of held-to-maturity consumer mortgage loans se cured by residential real estate properties in process of foreclosure.

[2] Represents principal balance being hedged.

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