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Aggregate Contractual or Notional Amounts of Derivative Financial Instruments (Detail) (IRLCs, Derivatives not designated as hedges, USD $) In Thousands, unless otherwise specified | Jun. 30, 2013 | Dec. 31, 2012 | Jun. 30, 2012
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IRLCs | Derivatives not designated as hedges |  |  |
Aggregate contractual or notional amounts of derivative financial instruments |  |  |
Notional Amount | $ 9,072 | $ 14,841 | $ 16,604

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- Definition Aggregate notional amount specified by the derivative(s). Expressed as an absolute value. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Article 12 -Section 13 -Sentence Column B + Details
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- Details
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