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Carrying and Contractual Unpaid Principal Balance of PCI loans, by Acquisition (Detail) - USD ($) $ in Thousands	Sep. 30, 2016	Dec. 31, 2015
Accounts, Notes, Loans and Financing Receivable [Line Items]
Unpaid Principal Balance	$ 17,094	$ 22,835
PCI loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Carrying Balance	31,796	42,642
Unpaid Principal Balance	59,551	75,697
Peoples | PCI loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Carrying Balance	5,798	6,681
Unpaid Principal Balance	9,762	11,249
Waccamaw Bank | PCI loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Carrying Balance	24,877	34,707
Unpaid Principal Balance	48,642	63,151
Other | PCI loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Carrying Balance	1,121	1,254
Unpaid Principal Balance	$ 1,147	$ 1,297

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+ References

No definition available.

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- Definition

The recorded balance, net of any applicable reductions (for example, unamortized accretable yield and allowance for loan losses). This relates to loans not accounted for debt securities with evidence of deterioration of credit quality since origination that were acquired by completion of a transfer for which it is probable, at acquisition, that the investor will be unable to collect all contractually required payments receivable.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 30
-Section 50
-Paragraph 2
-Subparagraph (a)(1)
-URI http://asc.fasb.org/extlink&oid=6379141&loc=d3e15032-111544

Reference 2: 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

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- Definition

Amount of unpaid principal balance of impaired financing receivables with related allowance for credit losses and without 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 15
-Subparagraph (a)(4)
-URI http://asc.fasb.org/extlink&oid=66008989&loc=d3e5212-111524

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