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Collaborative and Other Relationships Collaborative and Other Relationships - Equity Method Investments (Details) - USD ($)
$ in Millions
1 Months Ended 3 Months Ended 6 Months Ended
Feb. 29, 2012
Jun. 30, 2017
Jun. 30, 2016
Jun. 30, 2017
Jun. 30, 2016
Schedule of Equity Method Investments [Line Items]          
Collaboration profit (loss) sharing   $ 26.5 $ (5.6) $ 47.3 $ (5.6)
Revenue related to technical development and technology transfer services   $ 41.6 79.0 $ 131.6 166.9
Samsung Biosimilar Agreement [Member]          
Schedule of Equity Method Investments [Line Items]          
Percentage of stake in entity minimum   5.40%   5.40%  
Percentage of stake in entity maximum 49.90%        
Expected profit share with Samsung Bioepis       50.00%  
Collaboration profit (loss) sharing   $ 25.2   $ 46.0 5.6
Revenue related to technical development and technology transfer services   $ 12.7 $ 14.2 $ 14.9 $ 16.9