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Derivative Financial Instruments and Hedging Activities - Narrative (Details) - USD ($) | 6 Months Ended | 12 Months Ended
--- | --- | ---
Jun. 30, 2024 | Dec. 31, 2023
Derivative [Line Items] |  |
Securities AFS, at estimated fair value | $ 1,405,944,000 | $ 1,296,294,000
Cash collateral received from counterparties under master netting agreements | 64,171,000 | 46,760,000
Gain (Loss) on Hedging Activity | 4,000,000.0 | $ 6,500,000
Interest Rate Swap | Cash Flow Hedging |  |
Derivative [Line Items] |  |
Derivative, Notional Amount | $ 940,000,000.0 |

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