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Loans - Troubled Debt Restructurings (Detail) (USD $) In Thousands, unless otherwise specified | 6 Months Ended
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Jun. 30, 2013
Financing Receivable, Modifications [Line Items] |
Balance at time of restructuring | $ 6,303
Commercial and industrial, Other commercial [Member] |
Financing Receivable, Modifications [Line Items] |
Balance at time of restructuring | 2,138
Commercial real estate, Buildings, land and other [Member] |
Financing Receivable, Modifications [Line Items] |
Balance at time of restructuring | $ 4,165

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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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