Goodwill And Other Intangible Assets (Summary Of Finite-lived Intangible Assets) (Details) (USD $) In Thousands	Sep. 30, 2011	Dec. 31, 2010	Sep. 30, 2010
Other Intangible Assets Net	$ 22,413	$ 12,575	$ 13,194
Specialty Finance [Member] \| Customer Lists Intangibles [Member]
Gross carrying amount	1,800	1,800	5,052
Accumulated amortization	(411)	(253)	(3,450)
Net carrying amount	1,389	1,547	1,602
Community Banking [Member] \| Core Deposits Intangibles [Member]
Gross carrying amount	35,567	29,608	29,508
Accumulated amortization	(20,547)	(18,580)	(17,916)
Net carrying amount	15,020	11,028	11,592
Wealth Management [Member] \| Customer List And Other Intangibles [Member]
Gross carrying amount	6,090
Accumulated amortization	(86)
Net carrying amount	$ 6,004

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.

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)

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 350

-SubTopic 30

-Section 50

-Paragraph 2

-Subparagraph (a)(1)

-URI http://asc.fasb.org/extlink&oid=6905858&loc=d3e16323-109275

Name:	us-gaap_FiniteLivedIntangibleAssetsGross
Namespace Prefix:	us-gaap
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant