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INVENTORIES
6 Months Ended
Jun. 30, 2015
Inventory Disclosure [Abstract]  
Inventory Disclosure [Text Block]
INVENTORIES

Inventories consisted of the following (amounts in thousands):
 
June 30,
2015
 
December 31,
2014
Raw material
$
93,612

 
$
119,989

Work-in-process
39,904

 
41,073

Finished goods
179,758

 
179,998

 
313,274

 
341,060

Adjustment to LIFO basis
(7,187
)
 
(9,628
)
 
$
306,087

 
$
331,432


 
At June 30, 2015, approximately 9% of the Company's inventories were valued under the last-in, first-out (LIFO) method. At December 31, 2014, approximately 11% of the Company's inventories were valued under the LIFO method. The remaining inventories were valued under the first-in, first-out (FIFO) method or average cost method. All inventories are valued at lower of cost or market.