Loans And Allowance For Loan Losses Loans And Allowance For Loan Losses (Troubled Debt Restructurings by Type of Modification) (Details) - USD ($) $ in Thousands	Dec. 31, 2018	Dec. 31, 2017
Financing Receivable, Modifications [Line Items]
Restructured loans	$ 75,839	$ 110,608
Performing/Accruing TDR Commercial [Member]
Financing Receivable, Modifications [Line Items]
Restructured loans	50,904	88,588
Performing/AccruingTDR - Assistance programs [Member]
Financing Receivable, Modifications [Line Items]
Restructured loans	7,410	6,941
Performing/Accruing TDR - Consumer Bankruptcy [Member]
Financing Receivable, Modifications [Line Items]
Restructured loans	4,103	3,916
Performing/Accruing TDR - Other Consumer [Member]
Financing Receivable, Modifications [Line Items]
Restructured loans	3,663	3,367
TDR Non-accrual loans [Member]
Financing Receivable, Modifications [Line Items]
Restructured loans	$ 9,759	$ 7,796