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Pension and Other Postretirement Obligations | 9 Months Ended
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Oct. 01, 2017
Retirement Benefits [Abstract] |
Pension and Other Postretirement Obligations | Pension and Other Postretirement Obligations The following table provides the components of net periodic benefit costs for our pension and other postretirement benefit plans:
|  | Pension Obligations |  | Other Postretirement Obligations
Three Months Ended |  | October 1, 2017 |  | October 2, 2016 |  | October 1, 2017 |  | October 2, 2016
|  | (In thousands)
Service cost |  | $ | 1,206 |  |  | $ | 1,282 |  |  | $ | 14 |  |  | $ | 11 |
Interest cost |  | 1,822 |  |  | 2,202 |  |  | 344 |  |  | 305 |
Expected return on plan assets |  | (2,487 | ) |  | (2,931 | ) |  | — |  |  | — |
Amortization of prior service credit |  | (10 | ) |  | (11 | ) |  | — |  |  | (11 | )
Actuarial losses |  | 633 |  |  | 659 |  |  | 23 |  |  | 29 |
Settlement loss |  | — |  |  | 7,385 |  |  | — |  |  | — |
Net periodic benefit cost |  | $ | 1,164 |  |  | $ | 8,586 |  |  | $ | 381 |  |  | $ | 334 |
Nine Months Ended |  |  |  |  |  |  |  |
Service cost |  | $ | 3,549 |  |  | $ | 4,118 |  |  | $ | 41 |  |  | $ | 40 |
Interest cost |  | 5,391 |  |  | 7,020 |  |  | 1,000 |  |  | 1,152 |
Expected return on plan assets |  | (7,415 | ) |  | (9,339 | ) |  | — |  |  | — |
Amortization of prior service credit |  | (30 | ) |  | (29 | ) |  | — |  |  | (33 | )
Actuarial losses |  | 1,866 |  |  | 2,067 |  |  | 68 |  |  | 260 |
Settlement loss |  | — |  |  | 7,385 |  |  | — |  |  | — |
Net periodic benefit cost |  | $ | 3,361 |  |  | $ | 11,222 |  |  | $ | 1,109 |  |  | $ | 1,419 |

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- Definition The entire disclosure for pension and other postretirement benefits. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -URI http://asc.fasb.org/topic&trid=2235017 + Details
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