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Inventory
6 Months Ended
Jun. 30, 2012
Inventory [Abstract]  
Inventory
7.  
Inventory

Inventories as of June 30, 2012 and December 31, 2011 consist of the following:

 
June 30,
2012
December 31,
 2011
Raw materials
$6,975
$4,666
Work in process
13,609
10,806
Finished goods
3,841
1,142
 
$24,425
$16,614

At June 30, 2012, $10.5 million of inventories were included in prepaid expenses and other current assets and $13.9 million of inventories were included in other assets.  At December 31, 2011, $3.7 million of inventories were included in prepaid expenses and other current assets and $12.9 million of inventories were included in other assets.

For the three and six months ended June 30, 2012, cost of goods sold included inventory write-downs and reserves totaling $6.5 million and $8.4 million, respectively.  For the three and six months ended June 30, 2011, there were no inventory write-downs or reserves included in cost of goods sold.