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Investment Securities - Narrative (Details) - USD ($) $ in Thousands | 6 Months Ended |
--- | --- | ---
Jun. 30, 2025 | Jun. 30, 2024 | Dec. 31, 2024
Securities Financing Transactions Disclosures [Abstract] |  |  |
Available-for-sale securities | $ 404,745 |  | $ 260,477
AFS accrued interest | $ 1,800 |  |
Debt Securities, Available-for-Sale, Accrued Interest, after Allowance for Credit Loss, Statement of Financial Position [Extensible Enumeration] | Accrued interest receivable |  |
Held-to-maturity securities | $ 364,029 |  | 382,447
HTM accrued interest | $ 1,600 |  |
Debt Securities, Held-to-Maturity, Accrued Interest, after Allowance for Credit Loss, Statement of Financial Position [Extensible Enumeration] | Accrued interest receivable |  |
Available-for-sale securities pledged as collateral | $ 490,700 |  | 440,000
Letter of credit outstanding, amount | 158,600 |  | $ 156,000
Net gains | $ 0 | $ 0 |

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