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Inventories
12 Months Ended
Dec. 31, 2012
Inventory Disclosure [Abstract]  
Inventories
Inventories
Inventories consist of the following components:
 
 
December 31,
2012
 
December 31,
2011
 
 
(dollars in thousands)
Finished goods
 
$
159,550

 
$
119,020

Work in process
 
29,270

 
21,730

Raw materials
 
49,200

 
37,280

Total inventories
 
$
238,020

 
$
178,030