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Investment Securities, Equity Securities with Readily Determinable Fair Values and Other Investments - Other Investments (Details) - USD ($) | 12 Months Ended
--- | ---
Dec. 31, 2025 | Dec. 31, 2024
LIHTC |  |
Investments | $ 261,128,000 | $ 186,369,000
Investment, Proportional Amortization Method, Elected, Statement of Financial Position [Extensible Enumeration] | Other Long-Term Investments | Other Long-Term Investments
Estimated tax credits | $ 32,996,000 | $ 28,310,000
Estimated amortization | $ 28,627,000 | $ 26,615,000
Investment Program, Proportional Amortization Method, Applied, Amortization Expense, Statement of Cash Flows [Extensible Enumeration] | Net Income (Loss), Including Portion Attributable to Noncontrolling Interest | Net Income (Loss), Including Portion Attributable to Noncontrolling Interest
Investment Program, Proportional Amortization Method, Applied, Amortization Expense, Statement of Income or Comprehensive Income [Extensible Enumeration] | Other Noninterest Expense | Other Noninterest Expense
Impairment losses | $ 0 | $ 0
Other liabilities |  |
LIHTC |  |
Unfunded commitments | $ 37,200,000 | $ 25,064,000

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