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Retirement Plans (Tables) | 3 Months Ended
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Apr. 02, 2017
Compensation and Retirement Disclosure [Abstract] |
Net Periodic Defined-Benefit Pension And Other Post-Retirement Benefit Cost | Net periodic defined-benefit pension and other post-retirement benefit cost for the three-month periods ended April 2, 2017, and April 3, 2016, consisted of the following:
| Pension Benefits | Other Post-retirement Benefits
Three Months Ended | April 2, 2017 |  | April 3, 2016 | April 2, 2017 |  | April 3, 2016
Service cost | $ | 42 |  |  | $ | 44 |  | $ | 3 |  |  | $ | 3 |
Interest cost | 113 |  |  | 114 |  | 8 |  |  | 8 |
Expected return on plan assets | (169 | ) |  | (178 | ) | (8 | ) |  | (8 | )
Recognized net actuarial loss (gain) | 86 |  |  | 84 |  | (1 | ) |  | (1 | )
Amortization of prior service credit | (17 | ) |  | (17 | ) | (1 | ) |  | (2 | )
Net periodic benefit cost | $ | 55 |  |  | $ | 47 |  | $ | 1 |  |  | $ | — |

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- Definition Tabular disclosure of one or more of the entity's defined benefit pension plans or one or more other defined benefit postretirement plans, separately for pension plans and other postretirement benefit plans including the entity's schedule of fair value of plan assets for defined benefit or other postretirement plans. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=65897934&loc=d3e2439-114920 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=65897934&loc=d3e2417-114920 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=65897934&loc=d3e2410-114920 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 55 -Paragraph 17 -URI http://asc.fasb.org/extlink&oid=73719040&loc=d3e4179-114921 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=65897934&loc=d3e1928-114920 + Details
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