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INVENTORIES | 3 Months Ended
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Mar. 31, 2019
Inventory Disclosure [Abstract] |
Inventory Disclosure [Text Block] | INVENTORIES Inventories consisted of the following as of the dates set forth below (amounts in thousands):
| March 31, 2019 |  | December 31, 2018
Raw material | $ | 112,438 |  |  | $ | 110,806 |
Work-in-process | 64,061 |  |  | 55,543 |
Finished goods | 235,739 |  |  | 229,386 |
| $ | 412,238 |  |  | $ | 395,735 |
Inventories are valued at the lower of cost or net realizable value. Net realizable value is estimated based on current selling prices. Inventory costs are calculated using the first-in, first-out (FIFO) method or average cost method. Estimated provisions are established for slow-moving and obsolete inventory.

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- Definition The entire disclosure for inventory. Includes, but is not limited to, the basis of stating inventory, the method of determining inventory cost, the classes of inventory, and the nature of the cost elements included in inventory. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 330 -URI http://asc.fasb.org/topic&trid=2126998 + Details
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