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Benefit Plans (Tables) | 6 Months Ended
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Jun. 30, 2018
Retirement Benefits [Abstract] |
Components of Net Periodic Benefit Cost (Income) | The components of net periodic benefit cost (income) are as follows:
|  | For the Quarter Ended |  | For the Six Months Ended
(In thousands) |  | June 30, 2018 |  | July 1, 2017 |  | June 30, 2018 |  | July 1, 2017
Pension benefits: |  |  |  |  |  |  |  |
Service cost |  | $ | 20 |  |  | $ | 36 |  |  | $ | 44 |  |  | $ | 71 |
Interest cost |  | 1,465 |  |  | 1,653 |  |  | 2,958 |  |  | 3,318 |
Expected return on plan assets |  | (2,290 | ) |  | (2,186 | ) |  | (4,579 | ) |  | (4,368 | )
Amortization of net loss |  | 235 |  |  | 516 |  |  | 584 |  |  | 1,072 |
Net periodic benefit (income) cost |  | $ | (570 | ) |  | $ | 19 |  |  | $ | (993 | ) |  | $ | 93 |
Other benefits: |  |  |  |  |  |  |  |  |  |  |  |
Service cost |  | $ | 56 |  |  | $ | 53 |  |  | $ | 116 |  |  | $ | 109 |
Interest cost |  | 146 |  |  | 146 |  |  | 294 |  |  | 295 |
Amortization of prior service credit |  | (225 | ) |  | (226 | ) |  | (451 | ) |  | (451 | )
Amortization of net loss (gain) |  | 11 |  |  | (15 | ) |  | 29 |  |  | (20 | )
Net periodic benefit income |  | $ | (12 | ) |  | $ | (42 | ) |  | $ | (12 | ) |  | $ | (67 | )

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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=108410482&loc=d3e1928-114920 + Details
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