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INVENTORIES (Tables)
12 Months Ended
Dec. 31, 2014
Inventory Disclosure [Abstract]  
Schedule of Inventory, Current [Table Text Block]
Inventories at December 31, 2014 and 2013, consisted of the following (amounts in thousands):
 
2014
 
2013
Raw material
$
119,989

 
$
130,403

Work-in-process
41,073

 
54,190

Finished goods
179,998

 
208,821

 
341,060

 
393,414

Adjustment to LIFO basis
(9,628
)
 
(8,494
)
 
$
331,432

 
$
384,920