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Securities - Realized Gain (Loss) (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2023 | Sep. 30, 2022 | Sep. 30, 2023 | Sep. 30, 2022
Securities |  |  |  |
Proceeds from sales of securities | $ 65,572 |  | $ 205,738 | $ 3,303
Gross realized losses on securities | (924) | $ (1) | (4,146) | (34)
Net realized losses | (924) | (1) | (4,146) | (34)
Income tax benefit on net realized losses | $ 260 | $ 1 | $ 1,165 | $ 10
Effective tax rate applied (as a percent) | 28.10% |  | 28.10% | 29.40%

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- Definition Amount of realized gain (loss) 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/2009/role/commonPracticeRef -Topic 320 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 9 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org//1943274/2147481800/320-10-50-9 + Details
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