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Goodwill and Other Intangible Assets (Schedule of Identifiable Intangible Assets) (Details) (USD $)
In Thousands, unless otherwise specified
Sep. 30, 2013
Acquired Finite-Lived Intangible Assets [Line Items]  
Gross Carrying Amount $ 16,586
Accumulated Amortization (181)
Intangible Assets, Net 16,405
Proprietary adjuvant technology [Member]
 
Acquired Finite-Lived Intangible Assets [Line Items]  
Gross Carrying Amount 11,594
Accumulated Amortization (97)
Intangible Assets, Net 11,497
Collaboration agreements [Member]
 
Acquired Finite-Lived Intangible Assets [Line Items]  
Gross Carrying Amount 4,992
Accumulated Amortization (84)
Intangible Assets, Net $ 4,908