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Inventory
9 Months Ended
Sep. 30, 2013
Inventory Disclosure [Abstract]  
Inventory
Inventory
The components of inventory are summarized as follows:
(In millions)
As of
September 30,
2013
 
As of
December 31,
2012
Raw materials
$
112.2

 
$
101.8

Work in process
389.8

 
230.5

Finished goods
112.5

 
115.1

Total inventory
$
614.5

 
$
447.4


As of September 30, 2013, our inventory includes $82.4 million associated with our ELOCTATE, ALPROLIX, Serum-Free AVONEX and PLEGRIDY programs, which have been capitalized in advance of regulatory approval.