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Benefit Plans (Tables) | 9 Months Ended
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Sep. 30, 2019
Compensation And Retirement Disclosure [Abstract] |
Schedule of Defined Benefit Pension Plan | The following table presents the net periodic pension cost 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) |  | 2019 |  |  | 2018 |  |  | 2019 |  |  | 2018 |
Service cost – benefits earned during year |  | $ | 567 |  |  | $ | 715 |  |  | $ | 1,681 |  |  | $ | 2,121 |
Interest cost on projected benefit obligation |  |  | 1,327 |  |  |  | 1,242 |  |  |  | 3,938 |  |  |  | 3,684 |
Expected return on plan assets |  |  | (2,235 | ) |  |  | (2,416 | ) |  |  | (6,633 | ) |  |  | (7,169 | )
Amortization of prior service cost |  |  | 7 |  |  |  | 6 |  |  |  | 20 |  |  |  | 19 |
Amortization of net loss |  |  | 817 |  |  |  | 766 |  |  |  | 2,424 |  |  |  | 2,274 |
Net periodic pension cost |  | $ | 483 |  |  | $ | 313 |  |  | $ | 1,430 |  |  | $ | 929 |

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