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Pension and Other Post-Retirement Benefits (Tables) | 6 Months Ended
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Jun. 30, 2016
Pension and Post-Retirement Plans | The following tables set forth certain disclosures for the Company’s pension and post-retirement plans for the periods indicated:
|  | For the Three Months Ended June 30, |
|  | 2016 |  |  | 2015 |
(in thousands) |  | Pension Benefits |  |  | Post-Retirement Benefits |  |  | Pension Benefits |  |  | Post-Retirement Benefits |
Components of net periodic (credit) expense: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Interest cost |  | $ | 1,470 |  |  | $ | 160 |  |  | $ | 1,516 |  |  | $ | 175 |
Service cost |  |  | — |  |  |  | 1 |  |  |  | — |  |  |  | 1 |
Expected return on plan assets |  |  | (3,906 | ) |  |  | — |  |  |  | (4,390 | ) |  |  | — |
Amortization of prior-service costs |  |  | — |  |  |  | (62 | ) |  |  | — |  |  |  | (62 | )
Amortization of net actuarial loss |  |  | 2,262 |  |  |  | 81 |  |  |  | 2,052 |  |  |  | 96 |
Net periodic (credit) expense |  | $ | (174 | ) |  | $ | 180 |  |  | $ | (822 | ) |  | $ | 210 |
|  | For the Six Months Ended June 30, |
|  | 2016 |  |  | 2015 |
(in thousands) |  | Pension Benefits |  |  | Post-Retirement Benefits |  |  | Pension Benefits |  |  | Post-Retirement Benefits |
Components of net periodic (credit) expense: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Interest cost |  | $ | 2,940 |  |  | $ | 320 |  |  | $ | 3,032 |  |  | $ | 350 |
Service cost |  |  | — |  |  |  | 2 |  |  |  | — |  |  |  | 2 |
Expected return on plan assets |  |  | (7,812 | ) |  |  | — |  |  |  | (8,780 | ) |  |  | — |
Amortization of prior-service costs |  |  | — |  |  |  | (124 | ) |  |  | — |  |  |  | (124 | )
Amortization of net actuarial loss |  |  | 4,524 |  |  |  | 162 |  |  |  | 4,104 |  |  |  | 192 |
Net periodic (credit) expense |  | $ | (348 | ) |  | $ | 360 |  |  | $ | (1,644 | ) |  | $ | 420 |

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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://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (h) -URI http://asc.fasb.org/extlink&oid=65897934&loc=d3e1928-114920 + Details
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Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration