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Retirement Plans (Details 13) $ in Thousands | Dec. 31, 2017 USD ($)
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Estimated Future Benefit Payments [Abstract] |
Expected future benefit payments, year 1 | $ 11,781
Expected future benefit payments, year 2 | 11,677
Expected future benefit payments, year 3 | 12,347
Expected future benefit payments, year 4 | 12,866
Expected future benefit payments, year 5 | 13,712
Expected future benefit payments, year 6-10 | 77,006
U. S. Pension Plans And U. S. Retiree Healthcare Plan [Member] |
Estimated Future Benefit Payments [Abstract] |
Expected future benefit payments, year 1 | 9,385
Expected future benefit payments, year 2 | 10,114
Expected future benefit payments, year 3 | 10,287
Expected future benefit payments, year 4 | 10,777
Expected future benefit payments, year 5 | 10,749
Expected future benefit payments, year 6-10 | 58,789
Non-U.S. Pension Plans |
Estimated Future Benefit Payments [Abstract] |
Expected future benefit payments, year 1 | 2,396
Expected future benefit payments, year 2 | 1,563
Expected future benefit payments, year 3 | 2,060
Expected future benefit payments, year 4 | 2,089
Expected future benefit payments, year 5 | 2,963
Expected future benefit payments, year 6-10 | $ 18,217

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- Definition Amount of benefits for defined benefit plan expected to be paid in five fiscal years after fifth fiscal year following latest fiscal year. + 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 (f) -URI http://asc.fasb.org/extlink&oid=82843861&loc=d3e1928-114920 + Details
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