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Loans, net and allowance for credit losses - Allowance for Credit Losses (Details) - USD ($) $ in Millions | Mar. 31, 2026 | Dec. 31, 2025
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Loans, net and allowance for credit losses |  |
Financing receivable, accrued interest, after allowance for credit loss | $ 15.2 | $ 14.7
Accrued interest receivable on available of sale securities | $ 2.8 |
Accrued interest receivable on held to maturity securities |  | $ 3.0

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