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Inventory (Tables)
 6 Months Ended
Jun. 30, 2013
Inventory  
Components of inventory

 

 

 

 

June 30,

 

December 31,

 

(in thousands)

 

2013

 

2012

 

Raw Materials

 

$

41,368

 

$

41,642

 

Work In Process

 

34,815

 

15,810

 

Finished Goods

 

11,651

 

6,932

 

Total

 

$

87,834

 

$

64,384