Loans And Allowance For Loan Losses (Additional Information About Impaired Loans Held) (Details) (USD $)	Dec. 31, 2014	Dec. 31, 2013
Loans And Allowance For Loan Losses [Line Items]
Impaired Financing Receivable, Recorded Investment	$ 81,088,000	$ 107,636,000
Impaired Financing Receivable, Unpaid Principal Balance	104,827,000	135,897,000
Impaired Financing Receivable, with No Related Allowance, Recorded Investment	28,469,000	23,015,000
Impaired Financing Receivable, with No Related Allowance, Unpaid Principal Balance	38,667,000	34,225,000
Impaired Financing Receivable, with No Related Allowance, Allowance	0	0
Impaired Financing Receivable, with Related Allowance, Recorded Investment	52,619,000	84,621,000
Impaired Financing Receivable, with Related Allowance, Unpaid Principal Balance	66,160,000	101,672,000
Impaired Financing Receivable, Related Allowance	6,841,000	10,900,000
Business [Member]
Loans And Allowance For Loan Losses [Line Items]
Impaired Financing Receivable, with No Related Allowance, Recorded Investment	9,237,000	7,969,000
Impaired Financing Receivable, with No Related Allowance, Unpaid Principal Balance	11,532,000	9,000,000
Impaired Financing Receivable, with No Related Allowance, Allowance	0	0
Impaired Financing Receivable, with Related Allowance, Recorded Investment	12,326,000	19,266,000
Impaired Financing Receivable, with Related Allowance, Unpaid Principal Balance	13,846,000	22,597,000
Impaired Financing Receivable, Related Allowance	1,844,000	3,037,000
Real Estate - Construction And Land [Member]
Loans And Allowance For Loan Losses [Line Items]
Impaired Financing Receivable, with No Related Allowance, Recorded Investment	4,552,000	8,766,000
Impaired Financing Receivable, with No Related Allowance, Unpaid Principal Balance	8,493,000	16,067,000
Impaired Financing Receivable, with No Related Allowance, Allowance	0	0
Impaired Financing Receivable, with Related Allowance, Recorded Investment	8,148,000	17,632,000
Impaired Financing Receivable, with Related Allowance, Unpaid Principal Balance	9,610,000	19,708,000
Impaired Financing Receivable, Related Allowance	1,081,000	2,174,000
Real Estate - Business [Member]
Loans And Allowance For Loan Losses [Line Items]
Impaired Financing Receivable, with No Related Allowance, Recorded Investment	13,453,000	4,089,000
Impaired Financing Receivable, with No Related Allowance, Unpaid Principal Balance	17,258,000	6,417,000
Impaired Financing Receivable, with No Related Allowance, Allowance	0	0
Impaired Financing Receivable, with Related Allowance, Recorded Investment	7,835,000	20,794,000
Impaired Financing Receivable, with Related Allowance, Unpaid Principal Balance	15,025,000	29,287,000
Impaired Financing Receivable, Related Allowance	1,602,000	3,265,000
Real Estate - Personal [Member]
Loans And Allowance For Loan Losses [Line Items]
Impaired Financing Receivable, with No Related Allowance, Recorded Investment	1,227,000	0
Impaired Financing Receivable, with No Related Allowance, Unpaid Principal Balance	1,384,000	0
Impaired Financing Receivable, with No Related Allowance, Allowance	0	0
Impaired Financing Receivable, with Related Allowance, Recorded Investment	9,096,000	10,425,000
Impaired Financing Receivable, with Related Allowance, Unpaid Principal Balance	12,465,000	13,576,000
Impaired Financing Receivable, Related Allowance	1,441,000	1,361,000
Consumer [Member]
Loans And Allowance For Loan Losses [Line Items]
Impaired Financing Receivable, with Related Allowance, Recorded Investment	4,244,000	4,025,000
Impaired Financing Receivable, with Related Allowance, Unpaid Principal Balance	4,244,000	4,025,000
Impaired Financing Receivable, Related Allowance	50,000	85,000
Revolving Home Equity [Member]
Loans And Allowance For Loan Losses [Line Items]
Impaired Financing Receivable, with No Related Allowance, Recorded Investment	0	2,191,000
Impaired Financing Receivable, with No Related Allowance, Unpaid Principal Balance	0	2,741,000
Impaired Financing Receivable, with No Related Allowance, Allowance	0	0
Impaired Financing Receivable, with Related Allowance, Recorded Investment	529,000	666,000
Impaired Financing Receivable, with Related Allowance, Unpaid Principal Balance	529,000	666,000
Impaired Financing Receivable, Related Allowance	9,000	2,000
Consumer Credit Card [Member]
Loans And Allowance For Loan Losses [Line Items]
Impaired Financing Receivable, with Related Allowance, Recorded Investment	10,441,000	11,813,000
Impaired Financing Receivable, with Related Allowance, Unpaid Principal Balance	10,441,000	11,813,000
Impaired Financing Receivable, Related Allowance	$ 814,000	$ 976,000

Impaired Financing Receivable, with No Related Allowance, Allowance (zero)

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Amount of investment of impaired financing receivables with related allowance for credit losses and without a related allowance for credit losses.

+ References

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 310

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-Section 50

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Amount of allowance for credit losses related to recorded investment.

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-Publisher FASB

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Amount of unpaid principal balance of impaired financing receivables with related allowance for credit losses and without related allowance for credit losses.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

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+ References

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-Publisher FASB

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+ References

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