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INVENTORIES (Tables)
12 Months Ended
Dec. 31, 2018
Inventory Disclosure [Abstract]  
Schedule of Inventory, Current [Table Text Block] Inventories at December 31, 2018 and 2017, consisted of the following (amounts in thousands):
 
2018
 
2017
Raw material
$
110,806

 
$
83,541

Work-in-process
55,543

 
49,139

Finished goods
229,386

 
207,156

 
$
395,735

 
$
339,836