v2.4.0.6
Financial Instruments (Details) (Recurring [Member], USD $)
In Thousands, unless otherwise specified
Jun. 29, 2012
Sep. 30, 2011
Contingent consideration [Member]
   
Financial liabilities measured at fair value on a recurring basis    
Financial liabilities measured at fair value on a recurring basis $ 9,525 $ 25,502
Common stock warrant liability [Member]
   
Financial liabilities measured at fair value on a recurring basis    
Financial liabilities measured at fair value on a recurring basis 13,527 10,736
Class B conversion liability [Member]
   
Financial liabilities measured at fair value on a recurring basis    
Financial liabilities measured at fair value on a recurring basis   81,378
Active Markets for Identical Assets (Level 1) [Member] | Contingent consideration [Member]
   
Financial liabilities measured at fair value on a recurring basis    
Financial liabilities measured at fair value on a recurring basis      
Active Markets for Identical Assets (Level 1) [Member] | Common stock warrant liability [Member]
   
Financial liabilities measured at fair value on a recurring basis    
Financial liabilities measured at fair value on a recurring basis      
Active Markets for Identical Assets (Level 1) [Member] | Class B conversion liability [Member]
   
Financial liabilities measured at fair value on a recurring basis    
Financial liabilities measured at fair value on a recurring basis     
Observable Inputs (Level 2) [Member] | Contingent consideration [Member]
   
Financial liabilities measured at fair value on a recurring basis    
Financial liabilities measured at fair value on a recurring basis      
Observable Inputs (Level 2) [Member] | Common stock warrant liability [Member]
   
Financial liabilities measured at fair value on a recurring basis    
Financial liabilities measured at fair value on a recurring basis      
Observable Inputs (Level 2) [Member] | Class B conversion liability [Member]
   
Financial liabilities measured at fair value on a recurring basis    
Financial liabilities measured at fair value on a recurring basis     
Unobservable Inputs (Level 3) [Member] | Contingent consideration [Member]
   
Financial liabilities measured at fair value on a recurring basis    
Financial liabilities measured at fair value on a recurring basis 9,525 25,502
Unobservable Inputs (Level 3) [Member] | Common stock warrant liability [Member]
   
Financial liabilities measured at fair value on a recurring basis    
Financial liabilities measured at fair value on a recurring basis 13,527 10,736
Unobservable Inputs (Level 3) [Member] | Class B conversion liability [Member]
   
Financial liabilities measured at fair value on a recurring basis    
Financial liabilities measured at fair value on a recurring basis   $ 81,378