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Inventories
9 Months Ended
Sep. 30, 2012
Inventory Disclosure [Abstract]  
Inventories
Inventories
Inventories consist of the following components:
 
 
September 30,
2012
 
December 31,
2011
 
 
(dollars in thousands)
Finished goods
 
$
146,340

 
$
119,020

Work in process
 
28,360

 
21,730

Raw materials
 
45,750

 
37,280

Total inventories
 
$
220,450

 
$
178,030