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Inventories
3 Months Ended
Mar. 31, 2014
Inventory Disclosure [Abstract]  
Inventories
Note 4.               Inventories

Inventories consisted of the following:
 
 
March 31,
2014
 
March 31,
2013
 
Dec. 31,
2013
 
(Dollars in thousands)
 
 
 
 
 
 
Raw materials
$
185,848

 
$
161,853

 
$
158,963

Work-in-process
122,083

 
129,548

 
104,811

Finished goods
424,236

 
443,084

 
333,978

Other
13,136

 
14,176

 
14,398

 
745,303

 
748,661

 
612,150

Adjustment to value inventory
   at cost on the LIFO method
(96,580
)
 
(102,891
)
 
(96,580
)
 
$
648,723

 
$
645,770

 
$
515,570