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Employee Benefit Plans | 6 Months Ended
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Jun. 30, 2021
Retirement Benefits [Abstract] |
Employee Benefit Plans | Employee Benefit Plans The net periodic pension cost for the Corporation’s Defined Benefit Pension Plan ("Pension Plan") consisted of the following components:
| Three months ended June 30 |  | Six months ended June 30
| 2021 |  | 2020 |  | 2021 |  | 2020
| (in thousands)
Interest cost | $ | 561 |  |  | $ | 681 |  |  | $ | 1,122 |  |  | $ | 1,362 |
Expected return on plan assets | (1,011) |  |  | (982) |  |  | (2,022) |  |  | (1,964) |
Net amortization and deferral | 504 |  |  | 465 |  |  | 1,008 |  |  | 930 |
Net periodic pension cost | $ | 54 |  |  | $ | 164 |  |  | $ | 108 |  |  | $ | 328 |
The components of the net benefit for the Corporation’s Postretirement Benefits Plan ("Postretirement Plan") consisted of the following components:
| Three months ended June 30 |  | Six months ended June 30
| 2021 |  | 2020 |  | 2021 |  | 2020
| (in thousands)
Interest cost | $ | 8 |  |  | $ | 11 |  |  | $ | 16 |  |  | $ | 22 |
Net accretion and deferral | (134) |  |  | (137) |  |  | (268) |  |  | (274) |
Net periodic benefit | $ | (126) |  |  | $ | (126) |  |  | $ | (252) |  |  | $ | (252) |
The Corporation recognizes the funded status of its Pension Plan and Postretirement Plan on the consolidated balance sheets and recognizes the change in that funded status through other comprehensive income.

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