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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, 2019 | Jun. 30, 2018 | Jun. 30, 2019 | Jun. 30, 2018
Interest rate swaps |  |  |  |
Impact on pretax earnings of derivatives not designated as hedges |  |  |  |
Net Gains (Losses) on Derivatives |  | $ 227 | $ 16 | $ 631
Funding Swap (Visa Derivative) |  |  |  |
Impact on pretax earnings of derivatives not designated as hedges |  |  |  |
Net Gains (Losses) on Derivatives | $ (247) | 4 | (242) | (80)
Foreign exchange contracts |  |  |  |
Impact on pretax earnings of derivatives not designated as hedges |  |  |  |
Net Gains (Losses) on Derivatives | $ (1) | $ (30) | $ (1) | $ (92)

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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/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4A -Subparagraph (b)(1) -URI http://asc.fasb.org/extlink&oid=109980867&loc=SL5618551-113959 + Details
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- References No definition available. + Details
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