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Pension and Postretirement Benefits (Tables) | 6 Months Ended
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Jul. 02, 2017
Pension and Postretirement Benefits (Thousands of Dollars) [Abstract] |
Components of net periodic cost |
| Quarter Ended
| Pension |  | Postretirement
| July 2, |  | June 26, |  | July 2, |  | June 26,
| 2017 |  | 2016 |  | 2017 |  | 2016
Service cost | $ | 921 |  |  | 995 |  |  | 173 |  |  | 133
Interest cost |  | 4,430 |  |  | 4,604 |  |  | 295 |  |  | 293
Expected return on assets |  | (5,880) |  |  | (5,504) |  |  | - |  |  | -
Net amortization and deferrals |  | 2,519 |  |  | 2,132 |  |  | - |  |  | -
Net periodic benefit cost | $ | 1,990 |  |  | 2,227 |  |  | 468 |  |  | 426
| Six Months Ended
| Pension |  | Postretirement
| July 2, |  | June 26, |  | July 2, |  | June 26,
| 2017 |  | 2016 |  | 2017 |  | 2016
Service cost | $ | 1,873 |  |  | 1,993 |  |  | 345 |  |  | 265
Interest cost |  | 9,155 |  |  | 9,210 |  |  | 590 |  |  | 587
Expected return on assets |  | (12,161) |  |  | (11,011) |  |  | - |  |  | -
Net amortization and deferrals |  | 5,213 |  |  | 4,264 |  |  | - |  |  | -
Net periodic benefit cost | $ | 4,080 |  |  | 4,456 |  |  | 935 |  |  | 852

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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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