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INVENTORIES (Details) - USD ($) $ in Thousands | Dec. 31, 2017 | Jan. 01, 2017
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Inventories [Abstract] |  |
Raw materials and spare parts inventories | $ 128,414 | $ 119,155
Work in progress | 60,743 | 56,397
Finished goods | 756,581 | 779,324
Inventories, total | $ 945,738 | $ 954,876

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