| Components of Net Periodic Pension Plan Cost |
| | | | | | | | | | | | | | | | | | | | | | | | | | Pension Plan | | Nine Months Ended | | Three Months Ended | | | September 30, | | September 30, | (in thousands) | | 2020 | | 2019 | | 2020 | | 2019 | Service cost | | $ | 169 | | $ | 199 | | $ | 57 | | $ | 66 | Interest cost | | | 1,219 | | | 1,311 | | | 406 | | | 437 | Expected return on assets | | | (2,661) | | | (2,292) | | | (887) | | | (764) | Amortization of net actuarial loss | | | 1,074 | | | 807 | | | 358 | | | 269 | Net pension (credit)/expense included in employee benefits
and other expense | | $ | (199) | | $ | 25 | | $ | (66) | | $ | 8 |
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