Discontinued Operations and Assets and Liabilities Held For Sale (Astora Restructuring) (Narrative) (Details) - Astora Restructuring	3 Months Ended			9 Months Ended
	Sep. 30, 2017 USD ($)	Sep. 30, 2016 USD ($)	Mar. 31, 2016 employee	Sep. 30, 2017 USD ($)	Sep. 30, 2016 USD ($)
Restructuring Cost and Reserve [Line Items]
Number of positions reduced | employee			250
Restructuring expenses	$ 0	$ 1,769,000		$ 0	$ 68,393,000
Expected restructuring costs remaining		$ 0			$ 0