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Investment Securities - Securities Pledged (Details) - USD ($) $ in Millions | Sep. 30, 2022 | Dec. 31, 2021
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Investments, Debt and Equity Securities [Abstract] |  |
Debt securities with carrying values, pledged | $ 169.0 | $ 275.4

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- Definition The value of assets other than financial instruments pledged to provide security to a suppler under a recorded unconditional purchase obligation arrangement. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 860 -SubTopic 30 -Section 50 -Paragraph 1A -Subparagraph (b) -URI https://asc.fasb.org/extlink&oid=109249958&loc=SL6224234-111729 + Details
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