Goodwill (Schedule Of Changes In Goodwill) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Goodwill [Abstract]
Beginning balance	$ 34,521	$ 35,357	$ 34,313
Translation adjustments	(1,542)	(836)	1,044
Ending balance	$ 32,979	$ 34,521	$ 35,357