License And Collaboration Agreements (Strakan International Limited) (Narrative) (Details) - USD ($) $ in Millions	1 Months Ended	3 Months Ended
	Dec. 31, 2010	Dec. 31, 2015
License And Collaboration Agreements [Line Items]
Conditional milestone payment capitalized	$ 12.5
Pro Strakan Agreement
License And Collaboration Agreements [Line Items]
Additional milestone payment recognized		$ 5.0
Termination of agreement notice period		6 months
Fortesta | Pro Strakan Agreement, Commercial And Regulatory Milestone
License And Collaboration Agreements [Line Items]
Additional milestone payment	$ 150.0