Loans (Composition Of Loans Acquired At Acquisition) (Details) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2014	Dec. 31, 2013
Financing Receivable, Impaired [Line Items]
Outstanding loan balance	$ 2,557,035	$ 2,606,197
Virginia Savings Bank [Member]
Financing Receivable, Impaired [Line Items]
Outstanding loan balance	45,493	48,833
Credit-impaired loans:
Carrying value	3,102	3,182
Contractual principal and interest	3,821	3,932
Community Bank [Member]
Financing Receivable, Impaired [Line Items]
Outstanding loan balance	258,882	279,890
Credit-impaired loans:
Carrying value	19,986	26,330
Contractual principal and interest	30,476	38,566
Virginia Savings Bank And Community Financial [Member]
Financing Receivable, Impaired [Line Items]
Outstanding loan balance	304,375	328,723
Credit-impaired loans:
Carrying value	23,088	29,512
Contractual principal and interest	$ 34,297	$ 42,498

Amount of contractually required payments receivable at acquisition of acquired loans not accounted for as debt securities with evidence of deterioration of credit quality.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 310

-SubTopic 30

-Section 15

-Paragraph 2

-URI http://asc.fasb.org/extlink&oid=27045933&loc=d3e13503-111538

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 310

-SubTopic 30

-Section 50

-Paragraph 2

-Subparagraph (a)(3)

-URI http://asc.fasb.org/extlink&oid=6379141&loc=d3e15032-111544

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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=28368275&loc=SL6953550-111524

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Amount before allowance of loans and leases held in portfolio, including but not limited to, commercial and consumer loans. Includes deferred interest and fees, undisbursed portion of loan balance, unamortized costs and premiums and discounts from face amounts. Excludes loans and leases covered under loss sharing agreements.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 310

-SubTopic 10

-Section 45

-Paragraph 2

-URI http://asc.fasb.org/extlink&oid=28367877&loc=d3e4428-111522

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