Restructuring (Narrative) (Details) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2015 USD ($)	Sep. 30, 2014 USD ($)	Sep. 30, 2015 USD ($) employees
Restructuring Cost and Reserve [Line Items]
Reduction in employees			50
Fair value adjustment on available-for-sale assets | $	$ 3,225		$ 3,225