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Allowance for Loan Losses - Allowance for Loan Losses (Detail) (USD $) In Thousands, unless otherwise specified | 3 Months Ended
--- | ---
Mar. 31, 2014 | Mar. 31, 2013
Financing Receivable, Allowance for Credit Losses [Line Items] |  |
Balance at beginning of the period | $ 15,992 | $ 18,270
Total loans charged-off | 495 | 1,458
Total loan recoveries | 605 | 669
Net loans charged-off (recovered) | (110) | 789
Total provision charged to operating expense |  | 2,084
Balance at the end of the period | 16,102 | 19,565
Commercial [Member] |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |
Total loans charged-off | 29 | 417
Total loan recoveries | 390 | 70
Total provision charged to operating expense | 212 | 1,738
Commercial [Member] | Owner Occupied Real Estate [Member] |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |
Total loans charged-off |  | 132
Total loan recoveries | 4 | 32
Commercial [Member] | Non-owner Occupied Real Estate [Member] |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |
Total loans charged-off | 22 | 146
Total loan recoveries | 1 | 2
Commercial [Member] | Residential Development [Member] |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |
Total loans charged-off |  |
Total loan recoveries |  |
Commercial [Member] | Development & Spec Land Loans [Member] |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |
Total loans charged-off | 7 |
Total loan recoveries |  |
Commercial [Member] | Commercial and Industrial [Member] |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |
Total loans charged-off |  | 139
Total loan recoveries | 385 | 36
Real Estate [Member] |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |
Total loans charged-off | 22 | 143
Total loan recoveries | 4 | 3
Total provision charged to operating expense | (604) | 312
Real Estate [Member] | Residential Mortgage [Member] |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |
Total loans charged-off | 22 | 143
Total loan recoveries | 4 | 3
Real Estate [Member] | Residential Construction [Member] |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |
Total loans charged-off |  |
Total loan recoveries |  |
Real Estate [Member] | Mortgage Warehousing [Member] |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |
Total loans charged-off |  |
Total loan recoveries |  |
Consumer [Member] |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |
Total loans charged-off | 444 | 898
Total loan recoveries | 211 | 596
Total provision charged to operating expense | 392 | 34
Consumer [Member] | Direct Installment [Member] |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |
Total loans charged-off | 33 | 107
Total loan recoveries | 18 | 394
Consumer [Member] | Direct Installment Purchased [Member] |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |
Total loans charged-off |  |
Total loan recoveries |  |
Consumer [Member] | Indirect Installment [Member] |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |
Total loans charged-off | 227 | 353
Total loan recoveries | 119 | 170
Consumer [Member] | Home Equity [Member] |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |
Total loans charged-off | 184 | 438
Total loan recoveries | $ 74 | $ 32

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- Definition Allowance for loan and lease losses loans charged off net of recoveries. + References No definition available. + Details
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- Definition Amount of loans and leases that have been written off from both loan receivables and allowance reserve for credit loss. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 15 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=28368275&loc=d3e5212-111524 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03.7(d)) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 7 -Subparagraph d -Article 9 + Details
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- Definition Amount of recovery of loans and lease receivables which had previously been fully or partially written-off as bad debts. + References No definition available. + Details
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- Details
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- Definition Amount of allowance to cover probable credit losses on loans and leases. Includes carryover of or adjustments to the allowance for loan losses in connection with business combinations. Excludes allowance for loans and leases covered under loss sharing agreements. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03.7(d)) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 7 -Subparagraph d -Article 9 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (b)(1)(ii) -URI http://asc.fasb.org/extlink&oid=6379141&loc=d3e15032-111544 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Staff Accounting Bulletin (SAB) -Number Topic 6 -Section L -Subsection 1 + Details
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- Definition Amount of expense related to estimated loss from loan and lease transactions. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3602-108585 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Paragraph 11 -Article 9 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 225 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-04.11) -URI http://asc.fasb.org/extlink&oid=6879574&loc=d3e536633-122882 + Details
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