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Investment Securities (Sales of Securities Available for Sale) (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2020 | Sep. 30, 2019 | Sep. 30, 2020 | Sep. 30, 2019
Investments [Abstract] |  |  |  |
Proceeds from sales | $ 20,576 | $ 65,427 | $ 70,729 | $ 110,042
Gross realized gains | $ 554 | $ 1,608 | 1,458 | 1,811
Gross realized losses |  |  | $ 9 | $ 90

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- Definition Amount of realized gain on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale). + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 9 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=121645371&loc=d3e27357-111563 + Details
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