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Employee Benefit Plans (Tables) | 3 Months Ended
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Mar. 31, 2020
Retirement Benefits [Abstract] |
Schedule of Net Benefit Costs |
Net Periodic Cost (Benefit)
| Pension Benefits |  | Other Postretirement Benefits
| Three Months Ended March 31, |  | Three Months Ended March 31,
| 2020 | 2019 |  | 2020 | 2019
Service cost | $ | 1 |  | $ | 1 |  |  | $ | — |  | $ | — |
Interest cost | 32 |  | 39 |  |  | 2 |  | 2 |
Expected return on plan assets | (54 | ) | (57 | ) |  | (1 | ) | (1 | )
Amortization of prior service credit | — |  | — |  |  | (2 | ) | (1 | )
Amortization of actuarial loss | 15 |  | 11 |  |  | 2 |  | 1 |
Net periodic cost (benefit) | $ | (6 | ) | $ | (6 | ) |  | $ | 1 |  | $ | 1 |

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- Definition Tabular disclosure of the components of net benefit costs for pension plans and/or other employee benefit plans including service cost, interest cost, expected return on plan assets, gain (loss), prior service cost or credit, transition asset or obligation, and gain (loss) recognized due to settlements or curtailments. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (h) -URI http://asc.fasb.org/extlink&oid=118255775&loc=d3e1928-114920 + Details
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