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Interest Rate Derivatives - Cumulative Basis Adjustments for Fair Value Hedges (Parenthetical) (Details) - USD ($) $ in Millions | Mar. 31, 2023 | Dec. 31, 2022
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Derivative [Line Items] |  |
Derivative Asset, Statement of Financial Position [Extensible Enumeration] | Other Assets | Other Assets
Interest Rate Derivatives [Member] |  |
Derivative [Line Items] |  |
Derivative Asset | $ 5.2 | $ 8.2
Net Derivative Assets | 1.2 |
Available for Sale Securities [Member] | Interest Rate Derivatives [Member] |  |
Derivative [Line Items] |  |
Derivative Notional Amount | 56.0 | 68.7
Loans Receivable [Member] | Interest Rate Derivatives [Member] |  |
Derivative [Line Items] |  |
Amount of designated hedging item | $ 36.7 | $ 37.2

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