Goodwill and Other Intangible Assets (Schedule Of Gross Carrying Amount And Accumulated Amortization Of Other Intangible Assets) (Details) (USD $) In Thousands	Jun. 30, 2011	Dec. 31, 2010
Gross Carrying Amount	$ 68,620	$ 56,976
Accumulated Amortization and Impairment	(34,506)	(30,798)
Net Carrying Amount	34,114	26,178
Core Deposit [Member]
Gross Carrying Amount	34,975	26,810
Accumulated Amortization and Impairment	(17,118)	(14,646)
Net Carrying Amount	17,857	12,164
Customer Business Relationships [Member]
Gross Carrying Amount	25,611	25,753
Accumulated Amortization and Impairment	(15,421)	(14,581)
Net Carrying Amount	10,190	11,172
Customer Trust Relationships [Member]
Gross Carrying Amount	3,621
Accumulated Amortization and Impairment	(195)
Net Carrying Amount	3,426
Customer Loan Relationships [Member]
Gross Carrying Amount	4,413	4,413
Accumulated Amortization and Impairment	(1,772)	(1,571)
Net Carrying Amount	$ 2,641	$ 2,842

The accumulated amount of amortization of a major finite-lived intangible asset class. A major class is composed of intangible assets that can be grouped together because they are similar, either by their nature or by their use in the operations of a company.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 142
-Paragraph 45
-Subparagraph a(1)

+ Details

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Period Type:	instant

- Definition

Sum of the gross carrying amounts before accumulated amortization as of the balance sheet date of all intangible assets having statutory or estimated useful lives. The aggregate gross carrying amount (including any previously recognized impairment charges) of a major finite-lived intangible asset class. A major class is composed of intangible assets that can be grouped together because they are similar, either by their nature or by their use in the operations of a company.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 142
-Paragraph 45
-Subparagraph a(1)

+ Details

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Namespace Prefix:	us-gaap
Data Type:	xbrli:monetaryItemType
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- Definition

The aggregate sum of gross carrying value of a major finite-lived intangible asset class, less accumulated amortization and any impairment charges. A major class is composed of intangible assets that can be grouped together because they are similar, either by their nature or by their use in the operations of a company.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 142
-Paragraph 45
-Subparagraph a(1)

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant