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Changes in Accretable Yield on PCI loans, by Acquisition (Detail) - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2016 | Dec. 31, 2015 | Dec. 31, 2014
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, accretable Yield |  |  |
Accretable yield, Beginning Balance | $ 29,698 | $ 23,793 | $ 15,640
Additions |  | 2 | 293
Accretion | (6,617) | (9,171) | (8,302)
Reclassifications from nonaccretable difference | 1,907 | 7,847 | 18,341
Other changes, net | 1,238 | 7,227 | (2,179)
Accretable yield, Ending Balance | 26,226 | 29,698 | 23,793
Peoples |  |  |
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, accretable Yield |  |  |
Accretable yield, Beginning Balance | 3,589 | 4,745 | 5,294
Additions |  |  | 267
Accretion | (1,237) | (2,712) | (2,147)
Reclassifications from nonaccretable difference | 287 | 1,283 | 1,912
Other changes, net | 1,753 | 273 | (581)
Accretable yield, Ending Balance | 4,392 | 3,589 | 4,745
Waccamaw Bank |  |  |
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, accretable Yield |  |  |
Accretable yield, Beginning Balance | 26,109 | 19,048 | 10,338
Additions |  | 2 | 26
Accretion | (5,380) | (6,459) | (6,118)
Reclassifications from nonaccretable difference | 1,620 | 6,564 | 16,400
Other changes, net | (515) | 6,954 | (1,598)
Accretable yield, Ending Balance | $ 21,834 | $ 26,109 | 19,048
Other |  |  |
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, accretable Yield |  |  |
Accretable yield, Beginning Balance |  |  | 8
Accretion |  |  | (37)
Reclassifications from nonaccretable difference |  |  | $ 29

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- Definition Certain Loans Acquired in Transfer Accounted for as Debt Securities, Accretable Yield, Other Changes, Net + References No definition available. + Details
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- Definition Amount 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. + 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)(2) -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 + Details
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- Definition Amount of accretion recognized for 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. + References 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 + Details
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- Definition 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. + References 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 + Details
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- Definition Amount of reclassification (to) from nonaccretable difference (from) 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. + 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)(2) -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 + Details
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