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Derivatives - Schedule of Derivative Gain (Loss) (Details) - Not Designated as Hedging Instrument - Mortgage banking income - USD ($) $ in Thousands | 9 Months Ended
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Sep. 30, 2017 | Sep. 30, 2016
Derivative Instruments, Gain (Loss) [Line Items] |  |
Gain (loss) on derivatives not designated as hedging | $ (118) | $ (1,294)
Interest rate contracts |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |
Gain (loss) on derivatives not designated as hedging | (482) | (1,533)
Interest rate lock commitments |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |
Gain (loss) on derivatives not designated as hedging | $ 364 | $ 239

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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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- Definition Amount of realized and unrealized gain (loss) of derivative instruments not designated or qualifying as hedging instruments. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4C -Subparagraph (e) -URI http://asc.fasb.org/extlink&oid=84234895&loc=SL5624171-113959 + Details
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