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Investment Securities Summary of Gains and Losses from Equity and Debt Securities, and Losses from Other-than-Temporary Impairment (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
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Jun. 30, 2022 | Jun. 30, 2021 | Jun. 30, 2022 | Jun. 30, 2021
Investments, Debt and Equity Securities [Abstract] |  |  |  |
Debt securities, Gross Realized Gains | $ 8 | $ 465 | $ 1,554 | $ 34,481
Debt securities, Gross Realized Losses | 0 | (429) | (1,527) | (970)
Debt securities, Net Gains (Losses) | $ 8 | $ 36 | $ 27 | $ 33,511

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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 https://asc.fasb.org/extlink&oid=126970911&loc=d3e27357-111563 + Details
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