Activity in Accretable Yield Related to PCI loans, by Acquisition (Detail) (USD $) In Thousands, unless otherwise specified	12 Months Ended
Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, accretable Yield
Accretable yield, Beginning Balance	$ 24,243	$ 919	$ 944
Additions	429	29,881
Accretion	(8,247)	(5,260)	(174)
Reclassifications from (to) nonaccretable difference	3,300	185	149
Disposals	(4,085)	(1,482)
Accretable yield, Ending Balance	15,640	24,243	919
Peoples
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, accretable Yield
Accretable yield, Beginning Balance	2,342
Additions	148	3,400
Accretion	(1,840)	(856)
Reclassifications from (to) nonaccretable difference	6,155
Disposals	(1,511)	(202)
Accretable yield, Ending Balance	5,294	2,342
Waccamaw Bank
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, accretable Yield
Accretable yield, Beginning Balance	21,886
Additions	281	26,481
Accretion	(6,288)	(3,315)
Reclassifications from (to) nonaccretable difference	(2,967)
Disposals	(2,574)	(1,280)
Accretable yield, Ending Balance	10,338	21,886
Other
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, accretable Yield
Accretable yield, Beginning Balance	15	919	944
Accretion	(119)	(1,089)	(174)
Reclassifications from (to) nonaccretable difference	112	185	149
Accretable yield, Ending Balance	$ 8	$ 15	$ 919

Sale or transfer of a loan during the period resulting in a reduction in the excess of a loan's cash flows expected to be collected over the investor's initial investment. This relates to loans accounted for as debt securities, with evidence of deterioration of credit quality since origination that was 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.

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)(2)

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

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Amount of decrease from accretion of the excess of a loan's cash flows expected to be collected over the investor's initial investment in acquired loans not accounted for as debt securities with evidence of deterioration of credit quality.

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Amount of additions to the excess of a loan's cash flows expected to be collected over the investor's initial investment in acquired loans not accounted for as debt securities with evidence of deterioration of credit quality.

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Amount of increase of reclassification from nonaccretable difference to the excess of a loan's cash flows expected to be collected over the investor's initial investment in acquired loans not accounted for as debt securities with evidence of deterioration of credit quality.

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