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LOANS - Impaired Loans Classified as Troubled Debt Restructured (Detail) (USD $) In Thousands, unless otherwise specified | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2013 Contract | Jun. 30, 2012 Contract | Jun. 30, 2013 Contract | Jun. 30, 2012 Contract
Commercial Real Estate [Member] |  |  |  |
Financing Receivable Modifications Number Of Contracts [Line Items] |  |  |  |
Number of Contracts Modified, Troubled Debt Restructurings That Subsequently Defaulted |  |  |  |
Recorded Investment |  |  |  |
Number of Contracts Modified, Troubled Debt Restructurings |  | 1 |  | 1
Pre- Modification Outstanding Recorded Investment |  | 1,937 |  | 1,937
Post- Modification Outstanding Recorded Investment |  | 1,937 |  | 1,937
Agricultural Real Estate [Member] |  |  |  |
Financing Receivable Modifications Number Of Contracts [Line Items] |  |  |  |
Number of Contracts Modified, Troubled Debt Restructurings That Subsequently Defaulted |  |  |  |
Recorded Investment |  |  |  |
Number of Contracts Modified, Troubled Debt Restructurings |  |  |  |
Pre- Modification Outstanding Recorded Investment |  |  |  |
Post- Modification Outstanding Recorded Investment |  |  |  |
Commercial and Industrial [Member] |  |  |  |
Financing Receivable Modifications Number Of Contracts [Line Items] |  |  |  |
Number of Contracts Modified, Troubled Debt Restructurings That Subsequently Defaulted |  |  |  |
Recorded Investment |  |  |  |
Number of Contracts Modified, Troubled Debt Restructurings | 3 |  | 4 |
Pre- Modification Outstanding Recorded Investment | 2,251 |  | 2,294 |
Post- Modification Outstanding Recorded Investment | $ 2,251 |  | $ 2,332 |

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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 Number of financing receivables that have been modified by troubled debt restructurings within the previous 12 months and for which there was a payment default. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 34 -URI http://asc.fasb.org/extlink&oid=28368275&loc=SL6953682-111524 + Details
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- Definition Amount of investment related to financing receivables modified by troubled debt restructurings within the previous 12 months, for which there was a payment default. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 34 -URI http://asc.fasb.org/extlink&oid=28368275&loc=SL6953682-111524 + Details
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