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RESTRUCTURING (Restructuring Charges by Operating Segment) (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended | 12 Months Ended
--- | --- | --- | ---
Jun. 30, 2018 | Jul. 01, 2017 | Jun. 30, 2018 | Jul. 01, 2017 | Dec. 30, 2017 | Dec. 31, 2016
Restructuring Cost and Reserve [Line Items] |  |  |  |  |  |
Restructuring charges | $ 14,549 | $ 9,765 | $ 35,866 | $ 36,049 |  |
New World Fossil |  |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |  |
Restructuring charges | 14,549 | 9,765 | 35,866 | 36,049 | $ 48,200 | $ 27,800
New World Fossil | Operating segments | Americas |  |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |  |
Restructuring charges | 8,412 | 2,179 | 16,536 | 7,796 |  |
New World Fossil | Operating segments | Europe |  |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |  |
Restructuring charges | 2,352 | 2,160 | 5,719 | 7,682 |  |
New World Fossil | Operating segments | Asia |  |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |  |
Restructuring charges | 637 | 3,353 | 1,331 | 8,139 |  |
New World Fossil | Corporate |  |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |  |
Restructuring charges | $ 3,148 | $ 2,073 | $ 12,280 | $ 12,432 |  |

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