Discontinued Operations and Assets and Liabilities Held For Sale (Astora Restructuring) (Narrative) (Details) - Astora Restructuring	3 Months Ended
	Mar. 31, 2017 USD ($)	Mar. 31, 2016 USD ($) employee
Restructuring Cost and Reserve [Line Items]
Number of positions reduced | employee		250
Restructuring expenses	$ 0	$ 60,673,000
Expected restructuring costs remaining	$ 0