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Non-performing Assets and Impaired Loans - Loans Transferred and Classified as Troubled Debt Restructured Loans (Detail) (USD $) In Thousands, unless otherwise specified | 3 Months Ended
--- | ---
Mar. 31, 2014 Defaults | Mar. 31, 2013 Defaults
Financing Receivable, Modifications [Line Items] |  |
Number of Defaults | 3 | 8
Unpaid Principal Balance | $ 544 | $ 1,327
Commercial [Member] |  |
Financing Receivable, Modifications [Line Items] |  |
Number of Defaults | 2 | 3
Unpaid Principal Balance | 398 | 146
Commercial [Member] | Owner Occupied Real Estate [Member] |  |
Financing Receivable, Modifications [Line Items] |  |
Number of Defaults |  | 2
Unpaid Principal Balance |  | 76
Commercial [Member] | Non-owner Occupied Real Estate [Member] |  |
Financing Receivable, Modifications [Line Items] |  |
Number of Defaults |  | 1
Unpaid Principal Balance |  | 70
Commercial [Member] | Residential Development [Member] |  |
Financing Receivable, Modifications [Line Items] |  |
Number of Defaults |  |
Unpaid Principal Balance |  |
Commercial [Member] | Development & Spec Land Loans [Member] |  |
Financing Receivable, Modifications [Line Items] |  |
Number of Defaults |  |
Unpaid Principal Balance |  |
Commercial [Member] | Commercial and Industrial [Member] |  |
Financing Receivable, Modifications [Line Items] |  |
Number of Defaults | 2 |
Unpaid Principal Balance | 398 |
Real Estate [Member] |  |
Financing Receivable, Modifications [Line Items] |  |
Number of Defaults |  | 3
Unpaid Principal Balance |  | 390
Real Estate [Member] | Residential Mortgage [Member] |  |
Financing Receivable, Modifications [Line Items] |  |
Number of Defaults |  | 3
Unpaid Principal Balance |  | 390
Real Estate [Member] | Residential Construction [Member] |  |
Financing Receivable, Modifications [Line Items] |  |
Number of Defaults |  |
Unpaid Principal Balance |  |
Real Estate [Member] | Mortgage Warehousing [Member] |  |
Financing Receivable, Modifications [Line Items] |  |
Number of Defaults |  |
Unpaid Principal Balance |  |
Consumer [Member] |  |
Financing Receivable, Modifications [Line Items] |  |
Number of Defaults | 1 | 2
Unpaid Principal Balance | 146 | 791
Consumer [Member] | Direct Installment [Member] |  |
Financing Receivable, Modifications [Line Items] |  |
Number of Defaults |  |
Unpaid Principal Balance |  |
Consumer [Member] | Direct Installment Purchased [Member] |  |
Financing Receivable, Modifications [Line Items] |  |
Number of Defaults |  |
Unpaid Principal Balance |  |
Consumer [Member] | Indirect Installment [Member] |  |
Financing Receivable, Modifications [Line Items] |  |
Number of Defaults |  |
Unpaid Principal Balance |  |
Consumer [Member] | Home Equity [Member] |  |
Financing Receivable, Modifications [Line Items] |  |
Number of Defaults | 1 | 2
Unpaid Principal Balance | $ 146 | $ 791

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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 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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