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Derivative Financial Instruments - Derivatives Not Designated as Hedges (Details) - Derivatives Not Designated as Hedging Instruments - Other noninterest income - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
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Jun. 30, 2018 | Jun. 30, 2017 | Jun. 30, 2018 | Jun. 30, 2017
Interest rate swaps |  |  |  |
Impact on pretax earnings of derivatives not designated as hedges |  |  |  |
Net Gains (Losses) on Derivatives | $ 227 | $ 100 | $ 631 | $ 353
Funding Swap (Visa Derivative) |  |  |  |
Impact on pretax earnings of derivatives not designated as hedges |  |  |  |
Net Gains (Losses) on Derivatives | 4 | (35) | (80) | (32)
Foreign exchange contracts |  |  |  |
Impact on pretax earnings of derivatives not designated as hedges |  |  |  |
Net Gains (Losses) on Derivatives | $ (30) | $ 21 | $ (92) | $ 226

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- Definition Amount of increase (decrease) in the fair value of derivatives recognized in the income statement. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4A -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=84234895&loc=SL5618551-113959 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4C -Subparagraph (a),(c),(d),(e) -URI http://asc.fasb.org/extlink&oid=84234895&loc=SL5624171-113959 + Details
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- References No definition available. + Details
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