Loans And Allowance For Loan Losses (Additional Information About Impaired Loans Held) (Details) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2014	Dec. 31, 2013
Loans And Allowance For Loan Losses [Line Items]
Impaired Financing Receivable, with No Related Allowance, Recorded Investment	$ 17,645	$ 23,015
Impaired Financing Receivable, with No Related Allowance, Unpaid Principal Balance	27,808	34,225
Impaired Financing Receivable, with Related Allowance, Recorded Investment	87,080	84,621
Impaired Financing Receivable, with Related Allowance, Unpaid Principal Balance	104,281	101,672
Impaired Financing Receivable, Related Allowance	10,735	10,900
Impaired Financing Receivable, Recorded Investment	104,725	107,636
Impaired Financing Receivable, Unpaid Principal Balance	132,089	135,897
Business [Member]
Loans And Allowance For Loan Losses [Line Items]
Impaired Financing Receivable, with No Related Allowance, Recorded Investment	8,673	7,969
Impaired Financing Receivable, with No Related Allowance, Unpaid Principal Balance	10,709	9,000
Impaired Financing Receivable, with Related Allowance, Recorded Investment	27,014	19,266
Impaired Financing Receivable, with Related Allowance, Unpaid Principal Balance	28,858	22,597
Impaired Financing Receivable, Related Allowance	3,720	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	7,058	8,766
Impaired Financing Receivable, with No Related Allowance, Unpaid Principal Balance	14,876	16,067
Impaired Financing Receivable, with Related Allowance, Recorded Investment	13,762	17,632
Impaired Financing Receivable, with Related Allowance, Unpaid Principal Balance	15,893	19,708
Impaired Financing Receivable, Related Allowance	1,829	2,174
Real Estate - Business [Member]
Loans And Allowance For Loan Losses [Line Items]
Impaired Financing Receivable, with No Related Allowance, Recorded Investment	1,914	4,089
Impaired Financing Receivable, with No Related Allowance, Unpaid Principal Balance	2,223	6,417
Impaired Financing Receivable, with Related Allowance, Recorded Investment	18,413	20,794
Impaired Financing Receivable, with Related Allowance, Unpaid Principal Balance	27,780	29,287
Impaired Financing Receivable, Related Allowance	2,725	3,265
Real Estate - Personal [Member]
Loans And Allowance For Loan Losses [Line Items]
Impaired Financing Receivable, with Related Allowance, Recorded Investment	10,512	10,425
Impaired Financing Receivable, with Related Allowance, Unpaid Principal Balance	13,684	13,576
Impaired Financing Receivable, Related Allowance	1,129	1,361
Consumer [Member]
Loans And Allowance For Loan Losses [Line Items]
Impaired Financing Receivable, with Related Allowance, Recorded Investment	5,448	4,025
Impaired Financing Receivable, with Related Allowance, Unpaid Principal Balance	6,135	4,025
Impaired Financing Receivable, Related Allowance	158	85
Revolving Home Equity [Member]
Loans And Allowance For Loan Losses [Line Items]
Impaired Financing Receivable, with No Related Allowance, Recorded Investment	0	2,191
Impaired Financing Receivable, with No Related Allowance, Unpaid Principal Balance	0	2,741
Impaired Financing Receivable, with Related Allowance, Recorded Investment	560	666
Impaired Financing Receivable, with Related Allowance, Unpaid Principal Balance	560	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	11,371	11,813
Impaired Financing Receivable, with Related Allowance, Unpaid Principal Balance	11,371	11,813
Impaired Financing Receivable, Related Allowance	$ 1,172	$ 976