Loans And Allowance For Loan Losses (Additional Information About Impaired Loans Held) (Details) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2014	Dec. 31, 2013
Loans And Allowance For Loan Losses [Line Items]
Impaired Financing Receivable, with No Related Allowance, Recorded Investment	$ 23,668	$ 23,015
Impaired Financing Receivable, with No Related Allowance, Unpaid Principal Balance	36,326	34,225
Impaired Financing Receivable, with Related Allowance, Recorded Investment	84,731	84,621
Impaired Financing Receivable, with Related Allowance, Unpaid Principal Balance	101,901	101,672
Impaired Financing Receivable, Related Allowance	9,756	10,900
Impaired Financing Receivable, Recorded Investment	108,399	107,636
Impaired Financing Receivable, Unpaid Principal Balance	138,227	135,897
Business [Member]
Loans And Allowance For Loan Losses [Line Items]
Impaired Financing Receivable, with No Related Allowance, Recorded Investment	7,969	7,969
Impaired Financing Receivable, with No Related Allowance, Unpaid Principal Balance	9,000	9,000
Impaired Financing Receivable, with Related Allowance, Recorded Investment	25,834	19,266
Impaired Financing Receivable, with Related Allowance, Unpaid Principal Balance	29,189	22,597
Impaired Financing Receivable, Related Allowance	2,806	3,037
Real Estate - Construction And Land [Member]
Loans And Allowance For Loan Losses [Line Items]
Impaired Financing Receivable, with No Related Allowance, Recorded Investment	8,228	8,766
Impaired Financing Receivable, with No Related Allowance, Unpaid Principal Balance	15,965	16,067
Impaired Financing Receivable, with Related Allowance, Recorded Investment	15,558	17,632
Impaired Financing Receivable, with Related Allowance, Unpaid Principal Balance	17,591	19,708
Impaired Financing Receivable, Related Allowance	1,968	2,174
Real Estate - Business [Member]
Loans And Allowance For Loan Losses [Line Items]
Impaired Financing Receivable, with No Related Allowance, Recorded Investment	3,742	4,089
Impaired Financing Receivable, with No Related Allowance, Unpaid Principal Balance	6,432	6,417
Impaired Financing Receivable, with Related Allowance, Recorded Investment	17,994	20,794
Impaired Financing Receivable, with Related Allowance, Unpaid Principal Balance	26,755	29,287
Impaired Financing Receivable, Related Allowance	2,863	3,265
Real Estate - Personal [Member]
Loans And Allowance For Loan Losses [Line Items]
Impaired Financing Receivable, with Related Allowance, Recorded Investment	9,496	10,425
Impaired Financing Receivable, with Related Allowance, Unpaid Principal Balance	12,517	13,576
Impaired Financing Receivable, Related Allowance	1,127	1,361
Consumer [Member]
Loans And Allowance For Loan Losses [Line Items]
Impaired Financing Receivable, with No Related Allowance, Recorded Investment	1,538	0
Impaired Financing Receivable, with No Related Allowance, Unpaid Principal Balance	2,188	0
Impaired Financing Receivable, with Related Allowance, Recorded Investment	3,948	4,025
Impaired Financing Receivable, with Related Allowance, Unpaid Principal Balance	3,948	4,025
Impaired Financing Receivable, Related Allowance	75	85
Revolving Home Equity [Member]
Loans And Allowance For Loan Losses [Line Items]
Impaired Financing Receivable, with No Related Allowance, Recorded Investment	2,191	2,191
Impaired Financing Receivable, with No Related Allowance, Unpaid Principal Balance	2,741	2,741
Impaired Financing Receivable, with Related Allowance, Recorded Investment	605	666
Impaired Financing Receivable, with Related Allowance, Unpaid Principal Balance	605	666
Impaired Financing Receivable, Related Allowance	2	2
Consumer Credit Card [Member]
Loans And Allowance For Loan Losses [Line Items]
Impaired Financing Receivable, with Related Allowance, Recorded Investment	11,296	11,813
Impaired Financing Receivable, with Related Allowance, Unpaid Principal Balance	11,296	11,813
Impaired Financing Receivable, Related Allowance	$ 915	$ 976