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Benefit Plans (Tables) | 9 Months Ended
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Sep. 30, 2025
Retirement Benefits [Abstract] |
Schedule of Defined Benefit Pension Plan | The following table presents the net periodic pension income for Wesbanco’s Defined Benefit Pension Plan (the “Plan”) and the related components:
|  | For the Three Months Ended September 30, |  |  | For the Nine Months Ended September 30, |
(unaudited, in thousands) |  | 2025 |  |  | 2024 |  |  | 2025 |  |  | 2024 |
Service cost – benefits earned during year |  | $ | 269 |  |  | $ | 334 |  |  | $ | 800 |  |  | $ | 994 |
Interest cost on projected benefit obligation |  |  | 775 |  |  |  | 1,620 |  |  |  | 2,299 |  |  |  | 4,826 |
Expected return on plan assets |  |  | (1,620 | ) |  |  | (2,627 | ) |  |  | (4,808 | ) |  |  | (7,825 | )
Amortization of prior service cost |  |  | (9 | ) |  |  | (9 | ) |  |  | (26 | ) |  |  | (26 | )
Amortization of net (gain) loss |  |  | (48 | ) |  |  | 21 |  |  |  | (144 | ) |  |  | 63 |
Net periodic pension income |  | $ | (633 | ) |  | $ | (661 | ) |  | $ | (1,879 | ) |  | $ | (1,968 | )

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