Business combination separately recognized transactions loans recognized.

No definition available.

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- Definition

Cash payment per share on acquisition.

+ References

No definition available.

+ Details

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- Definition

Disposal Group Including Discontinued Operation Customer Deposits

+ References

No definition available.

+ Details

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- Definition

Number Of Branches Sold.

+ References

No definition available.

+ Details

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- Definition

Number of operating branches of bank.

+ References

No definition available.

+ Details

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- Definition

Percentage of loss covered by FDIC.

+ References

No definition available.

+ Details

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- Definition

Premium On Deposits Acquired

+ References

No definition available.

+ Details

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- Definition

Premium Received on Deposit Accounts Disposed of in Branch Sale

+ References

No definition available.

+ Details

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- Definition

Share issuable per share on acquisition.

+ References

No definition available.

+ Details

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- Details

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Data Type:	xbrli:stringItemType
Balance Type:	na
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- Definition

Price of a single share of a number of saleable stocks paid or offered to be paid in a business combination.

+ References

No definition available.

+ Details

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- Definition

In a business combination in which the amount of net identifiable assets acquired and liabilities assumed exceeds the aggregate consideration transferred or to be transferred (as defined), this element represents the amount of gain recognized by the entity.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 805

-SubTopic 30

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- Definition

Amount of consideration transferred, consisting of acquisition-date fair value of assets transferred by the acquirer, liabilities incurred by the acquirer, and equity interest issued by the acquirer.

+ References

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-Publisher FASB

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-SubTopic 30

-Section 30

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- Definition

Amount of equity interests of the acquirer, including instruments or interests issued or issuable in consideration for the business combination.

+ References

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- Definition

The amount of indemnification assets (amounts to be reimbursed if and when certain assumed liabilities are paid) recognized at the acquisition date of a business combination.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 805

-SubTopic 20

-Section 50

-Paragraph 1

-Subparagraph (a)(1)

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- Definition

The assets recognized for each amount of assets recorded in a transaction with the acquiree that is recognized separately from the acquisition of assets and assumptions of liabilities in the business combination.

+ References

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-Publisher FASB

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-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (e)(3)

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- Definition

The amount of liabilities recognized recorded in a transaction with the acquiree for each transaction that is recognized separately from the acquisition of assets and assumptions of liabilities in the business combination.

+ References

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- Definition

Amount classified as accounts, notes and loans receivable attributable to disposal group held for sale or disposed of.

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 205

-SubTopic 20

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-Paragraph 1

-Subparagraph (a)

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- Definition

Gain (loss) from sale or disposal of an organization or integrated set of activities (for example, but not limited to, a partnership or corporation) engaged in providing a product or service in a commercial, industrial, or professional environment.

+ References

No definition available.

+ Details

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- Definition

Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

+ References

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-Publisher FASB

-Name Accounting Standards Codification

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-SubTopic 20

-Section 50

-Paragraph 1

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-Topic 350

-SubTopic 20

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-Paragraph 1

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- Definition

Amount of increase (decrease) of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

+ References

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- Definition

The number of businesses acquired by the entity during the period.

+ References

No definition available.

+ Details

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- Definition

Cash outflow representing an adjustment to the purchase price of a previous acquisition.

+ References

No definition available.

+ Details

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- Definition

The cash outflow associated with the acquisition of business during the period. The cash portion only of the acquisition price.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Glossary Investing Activities

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- Definition

Number of shares issued for noncash consideration for development stage entities.

+ References

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 915

-SubTopic 215

-Section 45

-Paragraph 1

-Subparagraph (a)

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- Details

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Acquisitions and Divestitures - Additional Information (Detail) (USD $)	12 Months Ended	0 Months Ended				12 Months Ended
	Dec. 31, 2014	May 31, 2012 Branch	Jun. 08, 2012 Branch	Oct. 24, 2014 Branch	Dec. 12, 2014 Branch	Dec. 31, 2013 Entity	Dec. 31, 2012	Dec. 31, 2011
Business Acquisition [Line Items]
Additions to goodwill	$ 100,722,000us-gaap_Goodwill					$ 105,455,000us-gaap_Goodwill	$ 104,866,000us-gaap_Goodwill	$ 83,056,000us-gaap_Goodwill
Net gain on branch divestiture	755,000us-gaap_GainLossOnSaleOfBusiness
Peoples Bank of Virginia
Business Acquisition [Line Items]
Number of operating branches		4
Assets held on acquisition date by acquiree		275,760,000
Loans		184,840,000
Deposit held on acquisition date by acquiree		232,750,000
Cash consideration		40,280,000
Common stock valued		26,470,000
Total cash consideration of common stock		12,260,000
Common stock issued		2,157,005
Market price of common stock		$ 12.27
Cash received		$ 6.08
Common stock		$ 1.07
Additions to goodwill		10,320,000
Waccamaw Bank
Business Acquisition [Line Items]
Number of operating branches			16
Assets held on acquisition date by acquiree			500,640,000
Loans			318,350,000
Deposit held on acquisition date by acquiree			414,130,000
Additions to goodwill			10,620,000
FDIC loan and foreclosed real estate losses	80.00%		80.00%
Indemnification asset recorded at acquisition			49,760,000
Bank of America
Business Acquisition [Line Items]
Number of operating branches				7
Loans				0
Deposit held on acquisition date by acquiree				318,880,000
Premium on deposits acquired				5,790,000
Bank of America \| Southwestern Virginia
Business Acquisition [Line Items]
Number of operating branches				6
Bank of America \| Central North Carolina
Business Acquisition [Line Items]
Number of operating branches				1
CresCom Bank
Business Acquisition [Line Items]
Additions to goodwill					6,450,000
Number of operating branches sold					13
Deposit assumed by the buyer					215,190,000
Loan assumed by the buyer					70,040,000
Net gain on branch divestiture					755,000
Deposit premium received					6,450,000
CresCom Bank \| Southeastern, coastal region of North Carolina
Business Acquisition [Line Items]
Number of operating branches sold					10
CresCom Bank \| South Carolina
Business Acquisition [Line Items]
Number of operating branches sold					3
Insurance Services
Business Acquisition [Line Items]
Cash consideration						150,000
Number of insurance agencies acquired						1
Additional cash consideration						253,000
Goodwill and intangible asset added from acquisition						324,000
Earn-out payments related to acquisitions	$ 353,000					$ 442,000	$ 692,000