Collaborative and Other Relationships Collaborative and Other Relationships - Equity Method Investments (Details) - USD ($) $ in Millions	1 Months Ended	3 Months Ended		9 Months Ended
	Feb. 29, 2012	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Schedule of Equity Method Investments [Line Items]
Collaboration profit (loss) sharing		$ 35.2	$ 4.7	$ 82.5	$ (0.9)
Revenue related to technical development and technology transfer services		$ 48.8	98.6	$ 180.4	265.5
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		$ 34.5	7.4	$ 80.5	1.8
Revenue related to technical development and technology transfer services		$ 8.8	$ 0.4	$ 23.7	$ 17.3