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Legal Proceedings, Commitments and Contingencies Details (Details) - USD ($)
$ in Thousands
9 Months Ended
Sep. 30, 2015
Sep. 30, 2014
Loss Contingencies [Line Items]    
Payments to Acquire Businesses, Gross $ 0 $ 2,315
Issuance of common stock $ 47,416  
Common Stock [Member]    
Loss Contingencies [Line Items]    
Issuance of common stock for milestone payment, other 32,158,685  
Issuance of common stock $ 3  
Additional Paid-in Capital [Member]    
Loss Contingencies [Line Items]    
Issuance of common stock $ 47,413