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Loans Receivable and Allowance for Loan Losses - Number of Loans Modified and Their Pre-Modification and Post-Modification Investment Balances (Detail) (USD $) In Thousands, unless otherwise specified | 3 Months Ended | 6 Months Ended
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Jun. 30, 2014 Contract | Jun. 30, 2013 Contract | Jun. 30, 2014 Contract | Jun. 30, 2013 Contract
Financing Receivable, Modifications [Line Items] |  |  |  |
Number of Contracts | 14 | 1 | 14 | 1
Pre-Modification Recorded Investment | $ 1,523 | $ 524 | $ 1,523 | $ 524
Post-Modification Recorded Investment | 1,456 | 524 | 1,456 | 524
Acquisition and Development [Member] | Commercial and Land Development [Member] |  |  |  |
Financing Receivable, Modifications [Line Items] |  |  |  |
Number of Contracts | 0 | 1 | 0 | 1
Pre-Modification Recorded Investment | 0 | 524 | 0 | 524
Post-Modification Recorded Investment | 0 | 524 | 0 | 524
Residential Mortgage [Member] | First Lien [Member] |  |  |  |
Financing Receivable, Modifications [Line Items] |  |  |  |
Number of Contracts | 14 | 0 | 14 | 0
Pre-Modification Recorded Investment | 1,523 | 0 | 1,523 | 0
Post-Modification Recorded Investment | $ 1,456 | $ 0 | $ 1,456 | $ 0

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- Definition Number of financing receivables that have been modified by troubled debt restructurings. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 33 -URI http://asc.fasb.org/extlink&oid=28368275&loc=SL6953676-111524 + Details
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- Definition Post-modification amount of investment in financing receivables modified by troubled debt restructurings. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 33 -URI http://asc.fasb.org/extlink&oid=28368275&loc=SL6953676-111524 + Details
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- Definition Pre-modification amount of investment in financing receivables modified by troubled debt restructurings. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 33 -URI http://asc.fasb.org/extlink&oid=28368275&loc=SL6953676-111524 + Details
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