Net Periodic Benefit Cost-Defined Benefit Plans (Details) - USD ($) $ in Thousands |
3 Months Ended | 9 Months Ended | ||
|---|---|---|---|---|
Sep. 28, 2018 |
Sep. 29, 2017 |
Sep. 28, 2018 |
Sep. 29, 2017 |
|
| Discontinued Operation [Member] | ||||
| Net periodic benefit cost (income) | $ 2,000 | $ 4,300 | ||
| Pension Benefits-U.S. Plans: [Member] | ||||
| Service cost | $ 20 | 46 | $ 101 | 139 |
| Interest cost | 1,155 | 3,892 | 4,776 | 11,637 |
| Expected return on plan assets | (2,969) | (5,340) | (8,247) | (16,019) |
| Amortization | 606 | 1,623 | 2,434 | 4,860 |
| Net periodic benefit cost (income) | (1,188) | 221 | (936) | 617 |
| Pension Benefits - Non-U.S. Plans: [Member] | ||||
| Service cost | 643 | 409 | 1,889 | 2,407 |
| Interest cost | 4,529 | 6,358 | 14,079 | 19,537 |
| Expected return on plan assets | (5,278) | (6,994) | (16,397) | (20,404) |
| Amortization | 250 | 1,728 | 776 | 3,401 |
| Net periodic benefit cost (income) | 144 | 1,501 | 347 | 4,941 |
| Other Post-Retirement Benefits: [Member] | ||||
| Service cost | 6 | 10 | 19 | 31 |
| Interest cost | 124 | 243 | 370 | 728 |
| Amortization | (22) | (101) | (66) | (301) |
| Net periodic benefit cost (income) | $ 108 | $ 152 | $ 323 | $ 458 |