Goodwill And Other Intangible Assets, Net (Schedule Of Goodwill) (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2015 USD ($)
Goodwill and Intangible Assets Disclosure [Abstract]
Goodwill, Acquired During Period	$ 120,618
Goodwill [Roll Forward]
Balance, at January 1,	504,611
Net translation differences	(2,575)	[1]
Balance, at December 31,	$ 622,654

[1] Foreign currency translation differences resulting from goodwill allocated to reporting units, whose functional currency has been determined to be other than the U.S. dollar.