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Investment Securities - Narrative (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended | 12 Months Ended
--- | --- | --- | ---
Jun. 30, 2026 | Jun. 30, 2025 | Jun. 30, 2026 | Jun. 30, 2025 | Dec. 31, 2025
Debt Securities, Available-for-sale [Line Items] |  |  |  |  |
Federal reserve and federal home loan bank stock | $ 32,500 |  | $ 32,500 |  | $ 28,327
Accrued interest, after allowance for credit loss | $ 5,300 |  | $ 5,300 |  | $ 5,500
Debt Securities, Available-for-Sale, Accrued Interest, after Allowance for Credit Loss, Statement of Financial Position [Extensible Enumeration] | Other assets |  | Other assets |  | Other assets
Available for sale, allowance for credit loss | $ 0 |  | $ 0 |  | $ 0
Held to maturity, allowance for credit loss | 454 |  | 454 |  | $ 1,030
Proceeds from sales and calls | $ 12,055 | $ 62,909 | $ 12,112 | $ 112,961 |
Holdings of securities of any one issuer | 0.00% |  | 0.00% |  | 0.00%
Collateral Pledged |  |  |  |  |
Debt Securities, Available-for-sale [Line Items] |  |  |  |  |
Available-for-sale securities pledged as collateral | $ 21,400 |  | $ 21,400 |  | $ 519,600
Residential mortgage-backed securities |  |  |  |  |
Debt Securities, Available-for-sale [Line Items] |  |  |  |  |
Unrealized losses |  |  | $ 35,200 |  | $ 38,500

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