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Inventories
12 Months Ended
Dec. 31, 2013
Inventory Disclosure [Abstract]  
Inventories
Inventories
Inventories consist of the following components:
 
 
December 31,
2013
 
December 31,
2012
 
 
(dollars in thousands)
Finished goods
 
$
173,140

 
$
159,550

Work in process
 
31,880

 
29,270

Raw materials
 
65,670

 
49,200

Total inventories
 
$
270,690

 
$
238,020