Loans (Schedule Of Troubled Debt Restructurings Modified in 2011) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended	9 Months Ended
	Sep. 30, 2011	Sep. 30, 2011
Accruing Troubled Debt Restructuring [Member]
Financing Receivable, Modifications [Line Items]
TDRs Occurred, No. of Loans	7	11
TDRs Occurred, Pre-Modification Outstanding Recorded Investment	$ 61,194	$ 78,481
TDRs Occurred, Post-Modification Outstanding Recorded Investment	41,453	56,756
Accruing Troubled Debt Restructuring [Member] | Commercial Loans [Member]
Financing Receivable, Modifications [Line Items]
TDRs Occurred, No. of Loans	1	3
TDRs Occurred, Pre-Modification Outstanding Recorded Investment	14	13,026
TDRs Occurred, Post-Modification Outstanding Recorded Investment	14	13,025
Accruing Troubled Debt Restructuring [Member] | Real Estate Construction Loans [Member]
Financing Receivable, Modifications [Line Items]
TDRs Occurred, No. of Loans	2	2
TDRs Occurred, Pre-Modification Outstanding Recorded Investment	36,848	36,848
TDRs Occurred, Post-Modification Outstanding Recorded Investment	26,545	26,544
Accruing Troubled Debt Restructuring [Member] | Commercial Mortgage Loans [Member]
Financing Receivable, Modifications [Line Items]
TDRs Occurred, No. of Loans	3	4
TDRs Occurred, Pre-Modification Outstanding Recorded Investment	23,708	27,482
TDRs Occurred, Post-Modification Outstanding Recorded Investment	14,270	16,062
Accruing Troubled Debt Restructuring [Member] | Residential Mortgage And Equity Lines [Member]
Financing Receivable, Modifications [Line Items]
TDRs Occurred, No. of Loans	1	2
TDRs Occurred, Pre-Modification Outstanding Recorded Investment	624	1,125
TDRs Occurred, Post-Modification Outstanding Recorded Investment	624	1,125
Non-Accrual Troubled Debt Restructuring [Member]
Financing Receivable, Modifications [Line Items]
TDRs Occurred, No. of Loans	2	8
TDRs Occurred, Pre-Modification Outstanding Recorded Investment	814	17,242
TDRs Occurred, Post-Modification Outstanding Recorded Investment	814	11,242
Non-Accrual Troubled Debt Restructuring [Member] | Commercial Loans [Member]
Financing Receivable, Modifications [Line Items]
TDRs Occurred, No. of Loans	1	4
TDRs Occurred, Pre-Modification Outstanding Recorded Investment	363	8,161
TDRs Occurred, Post-Modification Outstanding Recorded Investment	363	2,161
Non-Accrual Troubled Debt Restructuring [Member] | Real Estate Construction Loans [Member]
Financing Receivable, Modifications [Line Items]
TDRs Occurred, No. of Loans		1
TDRs Occurred, Pre-Modification Outstanding Recorded Investment		7,382
TDRs Occurred, Post-Modification Outstanding Recorded Investment		7,382
Non-Accrual Troubled Debt Restructuring [Member] | Commercial Mortgage Loans [Member]
Financing Receivable, Modifications [Line Items]
TDRs Occurred, No. of Loans		2
TDRs Occurred, Pre-Modification Outstanding Recorded Investment		1,248
TDRs Occurred, Post-Modification Outstanding Recorded Investment		1,248
Non-Accrual Troubled Debt Restructuring [Member] | Residential Mortgage And Equity Lines [Member]
Financing Receivable, Modifications [Line Items]
TDRs Occurred, No. of Loans	1	1
TDRs Occurred, Pre-Modification Outstanding Recorded Investment	451	451
TDRs Occurred, Post-Modification Outstanding Recorded Investment	$ 451	$ 451