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Investment Securities - Narrative (Details) $ in Millions | Jun. 30, 2024 USD ($)
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Held-to-maturity Securities |
Schedule of Held-to-maturity Securities [Line Items] |
Securities loaned, fair value of collateral | $ 2,100.0
Debt Securities, Held-to-Maturity, Restricted | 2,200.0
Available-for-sale Securities |
Schedule of Held-to-maturity Securities [Line Items] |
Securities loaned, fair value of collateral | $ 4.6

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