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Benefit Plans (Tables) | 9 Months Ended
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Sep. 29, 2018
Retirement Benefits [Abstract] |
Schedule of Net Benefit Costs | The components of net periodic benefit cost for the three and nine months ended September 29, 2018 and September 30, 2017 were as follows:
|  | For the Three Months Ended |  | For the Nine Months Ended
(in thousands) |  | September 29, 2018 |  | September 30, 2017 |  | September 29, 2018 |  | September 30, 2017
Components of net periodic benefit cost: |  |  |  |  |  |  |  |
Service cost |  | $ | 533 |  |  | $ | 408 |  |  | $ | 1,599 |  |  | $ | 1,224 |
Interest cost |  | 501 |  |  | 360 |  |  | 1,503 |  |  | 1,080 |
Expected return on plan assets |  | (540 | ) |  | (476 | ) |  | (1,620 | ) |  | (1,428 | )
Amortization of prior service |  | 74 |  |  | 84 |  |  | 222 |  |  | 252 |
Net periodic benefit cost |  | $ | 568 |  |  | $ | 376 |  |  | $ | 1,704 |  |  | $ | 1,128 |

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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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