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Investment Securities - Narrative (Details) - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2025 | Dec. 31, 2024
Securities Financing Transactions Disclosures [Abstract] |  |
Available-for-sale securities | $ 416,314 | $ 260,477
Accrued interest, after allowance for credit loss | $ 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, at amortized cost (fair value $321,702 and $340,648) | $ 347,285 | 382,447
Held-to-maturity, accrued Interest, after allowance for credit loss | $ 1,500 |
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 | $ 544,700 | 440,000
Letter of credit outstanding, amount | 162,500 | 156,000
Gross realized gains on the sale of AFS securities | $ 10 | $ 0

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