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Pension and Other Postretirement Obligations | 9 Months Ended
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Sep. 29, 2019
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
|  | September 29, 2019 |  | September 30, 2018 |  | September 29, 2019 |  | September 30, 2018
|  | (In thousands)
Three Months Ended |  |  |  |  |  |  |  |
Service cost |  | $ | 1,058 |  |  | $ | 1,717 |  |  | $ | 10 |  |  | $ | 14 |
Interest cost |  | 2,921 |  |  | 2,011 |  |  | 273 |  |  | 257 |
Expected return on plan assets |  | (3,842 | ) |  | (4,660 | ) |  | — |  |  | — |
Amortization of prior service credit |  | (143 | ) |  | (37 | ) |  | — |  |  | — |
Actuarial losses (gains) |  | 327 |  |  | 1,073 |  |  | (25 | ) |  | — |
Net periodic benefit cost |  | $ | 321 |  |  | $ | 104 |  |  | $ | 258 |  |  | $ | 271 |
Nine Months Ended |  |  |  |  |  |  |  |
Service cost |  | $ | 3,164 |  |  | $ | 3,792 |  |  | $ | 29 |  |  | $ | 40 |
Interest cost |  | 8,869 |  |  | 5,792 |  |  | 815 |  |  | 781 |
Expected return on plan assets |  | (11,977 | ) |  | (9,688 | ) |  | — |  |  | — |
Amortization of prior service credit |  | (117 | ) |  | (59 | ) |  | — |  |  | — |
Actuarial losses (gains) |  | 969 |  |  | 2,350 |  |  | (76 | ) |  | — |
Net periodic benefit cost |  | $ | 908 |  |  | $ | 2,187 |  |  | $ | 768 |  |  | $ | 821 |

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