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INVENTORIES (Tables)
9 Months Ended
Sep. 30, 2015
Inventory Disclosure [Abstract]  
Schedule of Inventory, Current [Table Text Block]
Inventories consisted of the following (amounts in thousands):
 
September 30,
2015
 
December 31,
2014
Raw material
$
87,359

 
$
119,989

Work-in-process
38,608

 
41,073

Finished goods
167,302

 
179,998

 
293,269

 
341,060

Adjustment to LIFO
(6,134
)
 
(9,628
)
 
$
287,135

 
$
331,432