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Inventories (Tables) | 9 Months Ended
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Sep. 30, 2017
Inventory, Net [Abstract] |
Schedule of Inventory, Current | The components of inventories are as follows:
|  | September 30, |  | December 31,
(In Thousands) | 2017 |  | 2016
Finished goods | $ | 21,442 |  |  | $ | 16,215 |
Work-in-process | 10,695 |  |  | 8,590 |
Raw materials | 32,061 |  |  | 23,733 |
Stores, supplies and other | 18,228 |  |  | 17,531 |
Total | $ | 82,426 |  |  | $ | 66,069 |

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