Loans And Allowance For Loan Losses (Outstanding Balance Of Loans Classified As Troubled Debt Restructurings) (Details) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2012
Loans And Allowance For Loan Losses [Line Items]
Restructured loans	$ 87,264
Balance 90 days past due at any time during previous 12 months	11,009
Commercial [Member] | Business [Member]
Loans And Allowance For Loan Losses [Line Items]
Restructured loans	25,951
Balance 90 days past due at any time during previous 12 months	974
Commercial [Member] | Real Estate - Construction And Land [Member]
Loans And Allowance For Loan Losses [Line Items]
Restructured loans	32,180
Balance 90 days past due at any time during previous 12 months	8,189
Commercial [Member] | Real Estate - Business [Member]
Loans And Allowance For Loan Losses [Line Items]
Restructured loans	8,003
Balance 90 days past due at any time during previous 12 months	357
Personal Banking [Member] | Real Estate - Personal [Member]
Loans And Allowance For Loan Losses [Line Items]
Restructured loans	4,350
Balance 90 days past due at any time during previous 12 months	553
Personal Banking [Member] | Consumer Credit Card [Member]
Loans And Allowance For Loan Losses [Line Items]
Restructured loans	15,403
Balance 90 days past due at any time during previous 12 months	887
Personal Banking [Member] | Revolving Home Equity [Member]
Loans And Allowance For Loan Losses [Line Items]
Restructured loans	73
Balance 90 days past due at any time during previous 12 months	49
Personal Banking [Member] | Consumer [Member]
Loans And Allowance For Loan Losses [Line Items]
Restructured loans	1,304
Balance 90 days past due at any time during previous 12 months	$ 0