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v3.19.1

Pension Plan | 3 Months Ended
--- | ---
Mar. 31, 2019
Retirement Benefits [Abstract] |
Pension Plan | Pension Plan Net periodic pension cost consists of the following:
| Three Months Ended March 31,
| 2019 |  | 2018
Service cost | $ | 253 |  |  | $ | 169 |
Interest cost on projected benefit obligation | 782 |  |  | 701 |
Expected return on plan assets | (1,181 | ) |  | (1,354 | )
Net amortization and deferral | 720 |  |  | 672 |
Net periodic pension cost | $ | 574 |  |  | $ | 188 |
We do not expect to make any pension contributions during 2019. Non-service cost of $0.3 million is included in other expense in the consolidated condensed statement of comprehensive income for the three months ended March 31, 2019.

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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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