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Intangible Assets
9 Months Ended
Sep. 30, 2011
Intangible Assets [Abstract] 
Intangible Assets
4. Intangible Assets
Intangible assets consist of the following:
                 
    September 30,     December 31,  
    2011     2010  
    ($ in ‘000’s)  
 
               
Zevalin intangibles
  $ 41,900     $ 41,900  
Fusilev intangibles
    16,778       —  
 
           
 
    58,678       41,900  
Less: accumulated amortization
    (15,600 )     (12,295 )
 
           
 
  $ 43,078     $ 29,605  
 
           
During the three and nine months ended September 30, 2011, Zevalin intangible amortization of $1.3 million and $3.3 million, respectively, are included in amortization of purchased intangibles. In addition, during the three months ended September 30, 2011, $515,000 is included in cost of goods sold related to Fusilev Targent milestones.