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Intangible Assets
 9 Months Ended
Jun. 30, 2011
Intangible Assets [Abstract]  
Intangible Assets
Note 11 — Intangible Assets
Intangible assets consisted of:
                                 
    June 30, 2011     September 30, 2010  
    Gross             Gross        
    Carrying     Accumulated     Carrying     Accumulated  
    Amount     Amortization     Amount     Amortization  
Amortized intangible assets
                               
Core and developed technology
  $ 706,917     $ 306,149     $ 580,709     $ 269,926  
Patents, trademarks, and other
    317,146       232,257       301,883       219,735  
 
                       
 
  $ 1,024,063     $ 538,406     $ 882,592     $ 489,661  
 
                       
 
                               
Unamortized intangible assets
                               
Acquired in-process research and development
  $ 185,300             $ 143,000          
Trademarks
    2,717               2,709          
 
                           
 
  $ 188,017             $ 145,709          
 
                           
Intangible amortization expense for the three months ended June 30, 2011 and 2010 was $14,616 and $12,576, respectively. Intangible amortization expense for the nine months ended June 30, 2011 and 2010 was $39,051 and $36,648, respectively.