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Retirement Plans (Tables) | 9 Months Ended
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Sep. 30, 2025
Retirement Benefits [Abstract] |
Schedule of Components of Net Pension Cost | The following items are components of net pension (income) for the periods indicated:
| Three Months Ended September 30, |  | Nine Months Ended September 30,
(dollars in thousands) | 2025 |  | 2024 |  | 2025 |  | 2024
Service cost - benefits earned during the year | $ | 174 |  |  | $ | 236 |  |  | $ | 521 |  |  | $ | 710 |
Interest costs on projected benefit obligations (1) | 388 |  |  | 370 |  |  | 1,164 |  |  | 1,108 |
Expected return on plan assets (1) | (585) |  |  | (590) |  |  | (1,755) |  |  | (1,769) |
Expected administrative expenses | 36 |  |  | 28 |  |  | 109 |  |  | 82 |
Amortization of unrecognized net gain (1) | (319) |  |  | (173) |  |  | (957) |  |  | (518) |
Net periodic pension income | $ | (306) |  |  | $ | (129) |  |  | $ | (919) |  |  | $ | (387) |
(1)The components of net periodic pension (income) other than the service cost and expected administrative expenses are included in other non-interest income.

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- Definition Tabular disclosure of the components of net benefit costs for pension plans and/or other employee benefit plans including service cost, interest cost, expected return on plan assets, gain (loss), prior service cost or credit, transition asset or obligation, and gain (loss) recognized due to settlements or curtailments. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 715 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 5 -Subparagraph (q) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480506/715-20-50-5 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 715 -SubTopic 20 -Subparagraph (h) -Name Accounting Standards Codification -Paragraph 1 -Section 50 -Publisher FASB -URI https://asc.fasb.org/1943274/2147480506/715-20-50-1 + Details
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