v3.26.3
Components of Net Periodic Benefit Cost
 9 Months Ended
Sep. 30, 2026
Components of Net Periodic Benefit Cost  
Components of Net Periodic Benefit Cost

8.    Components of Net Periodic Benefit Cost

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Three Months Ended September 30, 

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Nine Months Ended September 30, 

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Post-Retirement

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Post-Retirement

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Pension Benefits

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Health Benefits

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Pension Benefits

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Health Benefits

(Dollar amounts in thousands)

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2026

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2025

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2026

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2025

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2026

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2025

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2026

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2025

Service cost

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$

104

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$

108

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$

5

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$

3

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$

312

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$

323

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$

16

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$

9

Interest cost

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991

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1,016

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37

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32

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2,971

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3,049

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112

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96

Expected return on plan assets

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(1,215)

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(1,094)

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—

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—

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(3,647)

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(3,281)

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—

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—

Net amortization of prior service cost

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—

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—

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—

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—

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—

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—

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—

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—

Net amortization of net (gain) loss

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—

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—

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(30)

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(39)

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—

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—

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(90)

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(117)

Net Periodic Benefit Cost

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$

(120)

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$

30

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$

12

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$

(4)

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$

(364)

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$

91

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$

38

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$

(12)

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Employer Contributions

The Corporation previously disclosed in its consolidated financial statements for the year ended December 31, 2025 that it expected to contribute $1.6 million, $556 thousand, and $244 thousand to its Pension Plan, Employee Stock Option Plan (“ESOP”) and Post Retirement Health Benefits Plan, respectively, in 2026. Contributions of $1.1 million, $0, and $164 thousand have been made to the Pension Plan, ESOP, and Post Retirement Health Benefits Plan, respectively. The Pension plan was frozen for most employees at the end of 2012 and for those employees there will be discretionary contributions to the ESOP plan and a 401K plan in place of the former Pension benefit. In the first nine months of 2026 and 2025 there were $3.0 million and $2.4 million of expense recorded, respectively, for potential contributions to these alternative retirement benefit options.