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Employee Benefit Plans (Details 1) - USD ($) $ in Thousands | 7 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2015 | Dec. 29, 2016 | May 28, 2015 | May 29, 2014
Net periodic pension cost: |  |  |  |
Service cost | $ 459 | $ 865 | $ 697 | $ 702
Interest cost | 765 | 1,406 | 1,243 | 1,173
Net amortization of prior service cost and actuarial loss | 211 | 364 | 326 | 268
Curtailment gain | 0 | (251) | 0 | 0
Total | $ 1,435 | $ 2,384 | $ 2,266 | $ 2,143

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- Definition The amount of net gain (loss) recognized in net periodic benefit cost as a result of an event that significantly reduces the expected years of future service of present employees or eliminates for a significant number of employees the accrual of defined benefits for some or all of their future services. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Plan Curtailment -URI http://asc.fasb.org/extlink&oid=6520938 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (h)(7) -URI http://asc.fasb.org/extlink&oid=65897934&loc=d3e1928-114920 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 30 -Section 15 -Paragraph 6 -Subparagraph (a)(2) -URI http://asc.fasb.org/extlink&oid=7577095&loc=d3e8001-114927 + Details
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