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Investment Securities - Net gains (losses) on trading securities (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
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Sep. 30, 2023 | Sep. 30, 2022 | Sep. 30, 2023 | Sep. 30, 2022
Investment Securities |  |  |  |
Net (losses) gains on sales transaction | $ (76) | $ 76 | $ (116) | $ (1,544)
Net mark to mark gains (losses) | 176 | 465 | (25) | (1,969)
Net gains (losses) on trading securities | $ 100 | $ 541 | $ (141) | $ (3,513)

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- Definition Amount of gain losses on mark to market debt securities trading. + References No definition available. + Details
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- Definition Amount of gain losses on sale of debt securities trading. + References No definition available. + Details
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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 net income (trading). + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 320 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 14 -Publisher FASB -URI https://asc.fasb.org//1943274/2147481800/320-10-50-14 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 220 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03(7)(c)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147483621/220-10-S99-2 + Details
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