Hedging Activities And Foreign Currency Translation (Foreign Currency Transaction) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Derivative Instruments And Hedging Activities Disclosure [Abstract]
Foreign currency option loss	$ (82)	$ (126)	$ (416)	$ (387)
Foreign currency translations gain (loss), net			$ 2,400	$ (2,700)