Commitments, Off-Balance Sheet Arrangements, Legal Proceedings and Regulatory Matters (Tables) |
9 Months Ended | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Sep. 30, 2026 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Commitments and Contingencies Disclosure [Abstract] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Summary of lending-related and other commitments | The following is a summary of lending-related commitments:
(a) These off-balance sheet financial instruments are exercisable at the market rate prevailing at the date the underlying transaction will be completed and, thus, are deemed to have no current fair value, or the fair value is based on fees currently charged to enter into similar agreements and was not material at September 30, 2026 or December 31, 2025. (b) Interest rate lock commitments to originate residential mortgage loans held for sale are considered derivative instruments and are disclosed in Note 10. (c) Standby letters of credit are presented excluding participations. The Corporation has established a liability of $2.4 million at September 30, 2026 and $2.2 million at December 31, 2025, as an estimate of the fair value of these financial instruments.
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| Schedule Of Unfunded Commitments [Table Text Block] | The following table presents a summary of the changes in the allowance for unfunded commitments:
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| Schedule of income tax credits from qualified affordable housing projects | The following table summarizes income tax credits, other income tax benefits, and investment amortization generated from the Corporation's investments in these projects, which are recognized as a component within income tax expense on the consolidated statements of income and included in the change in net income tax position and amortization of tax credit investments on the consolidated statements of cash flows:
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