Loans And Allowance For Loan Losses (Additional Information About Impaired Loans Held) (Details) - USD ($) $ in Thousands	Jun. 30, 2016	Dec. 31, 2015
Loans And Allowance For Loan Losses [Line Items]
Impaired Financing Receivable, with No Related Allowance, Recorded Investment	$ 17,361	$ 17,457
Impaired Financing Receivable, with No Related Allowance, Unpaid Principal Balance	22,313	27,370
Impaired Financing Receivable, with Related Allowance, Recorded Investment	53,832	47,857
Impaired Financing Receivable, with Related Allowance, Unpaid Principal Balance	59,030	56,768
Impaired Financing Receivable, Related Allowance	2,904	3,484
Impaired Financing Receivable, Recorded Investment	71,193	65,314
Impaired Financing Receivable, Unpaid Principal Balance	81,343	84,138
Business [Member]
Loans And Allowance For Loan Losses [Line Items]
Impaired Financing Receivable, with No Related Allowance, Recorded Investment	11,777	9,330
Impaired Financing Receivable, with No Related Allowance, Unpaid Principal Balance	15,217	11,777
Impaired Financing Receivable, with Related Allowance, Recorded Investment	24,905	18,227
Impaired Financing Receivable, with Related Allowance, Unpaid Principal Balance	25,639	20,031
Impaired Financing Receivable, Related Allowance	1,059	1,119
Real Estate - Construction And Land [Member]
Loans And Allowance For Loan Losses [Line Items]
Impaired Financing Receivable, with No Related Allowance, Recorded Investment	2,160	2,961
Impaired Financing Receivable, with No Related Allowance, Unpaid Principal Balance	3,462	8,956
Impaired Financing Receivable, with Related Allowance, Recorded Investment	160	1,227
Impaired Financing Receivable, with Related Allowance, Unpaid Principal Balance	162	2,804
Impaired Financing Receivable, Related Allowance	7	63
Real Estate - Business [Member]
Loans And Allowance For Loan Losses [Line Items]
Impaired Financing Receivable, with No Related Allowance, Recorded Investment	3,072	4,793
Impaired Financing Receivable, with No Related Allowance, Unpaid Principal Balance	3,261	6,264
Impaired Financing Receivable, with Related Allowance, Recorded Investment	7,621	6,489
Impaired Financing Receivable, with Related Allowance, Unpaid Principal Balance	9,145	9,008
Impaired Financing Receivable, Related Allowance	505	745
Real Estate - Personal [Member]
Loans And Allowance For Loan Losses [Line Items]
Impaired Financing Receivable, with No Related Allowance, Recorded Investment	352	373
Impaired Financing Receivable, with No Related Allowance, Unpaid Principal Balance	373	373
Impaired Financing Receivable, with Related Allowance, Recorded Investment	7,419	7,667
Impaired Financing Receivable, with Related Allowance, Unpaid Principal Balance	10,310	10,530
Impaired Financing Receivable, Related Allowance	694	831
Consumer [Member]
Loans And Allowance For Loan Losses [Line Items]
Impaired Financing Receivable, with Related Allowance, Recorded Investment	5,596	5,599
Impaired Financing Receivable, with Related Allowance, Unpaid Principal Balance	5,596	5,599
Impaired Financing Receivable, Related Allowance	68	63
Revolving Home Equity [Member]
Loans And Allowance For Loan Losses [Line Items]
Impaired Financing Receivable, with Related Allowance, Recorded Investment	400	704
Impaired Financing Receivable, with Related Allowance, Unpaid Principal Balance	447	852
Impaired Financing Receivable, Related Allowance	21	67
Consumer Credit Card [Member]
Loans And Allowance For Loan Losses [Line Items]
Impaired Financing Receivable, with Related Allowance, Recorded Investment	7,731	7,944
Impaired Financing Receivable, with Related Allowance, Unpaid Principal Balance	7,731	7,944
Impaired Financing Receivable, Related Allowance	$ 550	$ 596

Loans And Allowance For Loan Losses [Line Items]

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- Definition

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

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 14A
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=66008989&loc=SL6953550-111524

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Amount of allowance for credit losses related to recorded investment.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Recorded Investment
-URI http://asc.fasb.org/extlink&oid=65880944

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 15
-Subparagraph (a)(3)
-URI http://asc.fasb.org/extlink&oid=66008989&loc=d3e5212-111524

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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
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 15
-Subparagraph (a)(4)
-URI http://asc.fasb.org/extlink&oid=66008989&loc=d3e5212-111524

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Amount of investment in impaired financing receivables for which there is no related allowance for credit losses.

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Amount of investment in impaired financing receivables for which there is a related allowance for credit losses.

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