Acquisition And Divestiture Activity (Schedule Of Preliminary Purchase Price Allocation) (Details) (USD $) In Thousands	Sep. 30, 2011	Dec. 31, 2010	Sep. 30, 2010
Deposits	$ (6,867,263)	$ (5,462,925)	$ (5,439,437)
Short-term borrowings	(341,004)	(298,232)	(367,761)
Purchase price	90,070
Monroe Bancorp [Member]
Cash and cash equivalents	83,604
Investment securities	153,594
Loans	453,366
Premises and equipment	19,738
Accrued interest receivable	1,804
Company-owned life insurance	17,206
Other assets	41,538
Deposits	(653,813)
Short-term borrowings	(62,529)
Other borrowings	(37,352)
Accrued expenses and other liabilities	(6,000)
Net tangible assets acquired	11,156
Definite-lived intangible assets acquired	10,485
Goodwill	68,429
Purchase price	$ 90,070

The aggregate amount assigned to a major class of finite-lived intangible assets acquired either individually or as part of a group of assets (in either an asset acquisition or business combination). 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 44

-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-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009.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 1

-Subparagraph (a)(1)

-URI http://asc.fasb.org/extlink&oid=6905858&loc=d3e16265-109275