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Employee Benefit Plans | 3 Months Ended
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Mar. 31, 2019
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 March 31
| 2019 |  | 2018
| (in thousands)
Interest cost | $ | 815 |  |  | $ | 831 |
Expected return on plan assets | (689 | ) |  | (451 | )
Net amortization and deferral | 495 |  |  | 664 |
Net periodic pension cost | $ | 621 |  |  | $ | 1,044 |
The components of the net benefit for the Corporation’s Postretirement Benefits Plan ("Postretirement Plan") consisted of the following components:
| Three months ended March 31
| 2019 |  | 2018
| (in thousands)
Interest cost | $ | 15 |  |  | $ | 17 |
Net accretion and deferral | (139 | ) |  | (141 | )
Net periodic benefit | $ | (124 | ) |  | $ | (124 | )
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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- Definition The entire disclosure for pension and other postretirement benefits. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -URI http://asc.fasb.org/topic&trid=2235017 + Details
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