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INVENTORIES (Tables)
6 Months Ended
Jun. 30, 2013
Inventory Disclosure [Abstract]  
Schedule of Inventory, Current [Table Text Block]
Inventories consisted of the following (amounts in thousands):
 
June 30,
2013
 
December 31,
2012
Raw material
$
134,840

 
$
153,308

Work-in-process
56,789

 
69,030

Finished goods
184,750

 
154,785

 
376,379

 
377,123

Adjustment to LIFO basis
(7,416
)
 
(10,738
)
 
$
368,963

 
$
366,385