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Acquisitions (Narrative) (Details) (Bioniche Pharma Holdings Limited [Member], USD $)
3 Months Ended 6 Months Ended
Jun. 30, 2010
Jun. 30, 2011
Jun. 30, 2010
Sep. 07, 2010
Bioniche Pharma Holdings Limited [Member]
       
Percentage of acquisition of outstanding equity in Bioniche Pharma       100.00%
Purchase price for acquisition of assets and liabilities for Bionic Pharma   $ 543,736,000    
Rate used to discount net cash inflows to present values   11.00%    
Percentage of fair value of IPR&D represented by three research projects   60.00%    
Expected cost to complete the three projects   10,000,000    
Identified intangible assets   186,000,000    
Goodwill   207,390,000    
Weighted average useful life of identified intangible assets   8    
Business acquisition pro forma amortization of intangibles $ 6,800,000   $ 13,500,000