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Recorded Investment and Contractual Unpaid Principal Balance of PCI Loans, by Acquisition (Detail) - USD ($) $ in Thousands | Dec. 31, 2016 | Dec. 31, 2015
--- | --- | ---
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Recorded Investment | [1] | $ 26,973 | $ 36,936
Unpaid Principal Balance | [1] | 29,088 | 38,563
PCI loans |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Recorded Investment |  | 28,429 | 42,642
Unpaid Principal Balance |  | 55,548 | 75,697
Peoples | PCI loans |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Recorded Investment |  | 5,576 | 6,681
Unpaid Principal Balance |  | 9,397 | 11,249
Waccamaw Bank | PCI loans |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Recorded Investment |  | 21,758 | 34,707
Unpaid Principal Balance |  | 45,030 | 63,151
Other | PCI loans |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Recorded Investment |  | 1,095 | 1,254
Unpaid Principal Balance |  | $ 1,121 | $ 1,297
[1] | Includes loans totaling $16.89 million as of December 31, 2016, and $14.22 million as of December 31, 2015, that do not meet the Company's evaluation threshold for individual impairment and are therefore collectively evaluated for impairment

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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=66008989&loc=SL6953550-111524 + Details
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