Loans (Schedule Of Acquired Purchase Credit Impaired Loans By Portfolio Segment) (Details) - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017
Accounts, Notes, Loans and Financing Receivable [Line Items]
Carrying value	$ 119,828	$ 176,381
Unpaid balance	135,209	199,687
Commercial, financial and industrial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Carrying value	54,143	96,598
Unpaid balance	60,727	109,280
Commercial real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Carrying value	27,042	36,107
Unpaid balance	31,181	41,488
Consumer real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Carrying value	35,674	38,176
Unpaid balance	39,920	42,568
Credit card & other
Accounts, Notes, Loans and Financing Receivable [Line Items]
Carrying value	2,969	5,500
Unpaid balance	$ 3,381	$ 6,351