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Employee Benefit Plans (Tables) | 6 Months Ended
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Jun. 30, 2019
Pension Benefits |
Employee Benefit Plans [Line Items] |
Schedule of Defined Benefit Plans Disclosures | The following are components of the net periodic benefit cost for the pension and postretirement benefit plans maintained by the Company for the three and six months ended June 30, 2019 and 2018:
| Pension Benefits
(in thousands) | Three months ended June 30, |  | Six months ended June 30,
2019 |  | 2018 |  | 2019 |  | 2018
Interest cost | $ | 29 |  |  | $ | 32 |  |  | $ | 58 |  |  | $ | 65 |
Recognized net actuarial loss | 58 |  |  | 61 |  |  | 116 |  |  | 122 |
Benefit cost | $ | 87 |  |  | $ | 93 |  |  | $ | 174 |  |  | $ | 187 |
Postretirement Benefits |
Employee Benefit Plans [Line Items] |
Schedule of Defined Benefit Plans Disclosures |
| Postretirement Benefits
(in thousands) | Three months ended June 30, |  | Six months ended June 30,
2019 |  | 2018 |  | 2019 |  | 2018
Service cost | $ | 64 |  |  | $ | 75 |  |  | $ | 138 |  |  | $ | 162 |
Interest cost | 221 |  |  | 190 |  |  | 427 |  |  | 377 |
Amortization of prior service cost | (228 | ) |  | (228 | ) |  | (456 | ) |  | (456 | )
Benefit cost | $ | 57 |  |  | $ | 37 |  |  | $ | 109 |  |  | $ | 83 |

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- Definition Tabular disclosure of one or more of the entity's defined benefit pension plans or one or more other defined benefit postretirement plans, separately for pension plans and other postretirement benefit plans including the entity's schedule of fair value of plan assets for defined benefit or other postretirement plans. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 55 -Paragraph 17 -URI http://asc.fasb.org/extlink&oid=118257860&loc=d3e4179-114921 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=118255775&loc=d3e2439-114920 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=118255775&loc=d3e1928-114920 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=118255775&loc=d3e2410-114920 Reference 5: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=118255775&loc=d3e2417-114920 + Details
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