Acquisitions (Purchase Price Allocations Of Assets Acquired And Liabilities Assumed) (Details) - USD ($) $ in Thousands	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Acquisitions [Abstract]
Fixed assets	$ 1,505	$ 19,279	$ 9,830
Other intangible assets, net	57,066	127,315	51,930
Goodwill	44,772	259,422	128,328
Other assets, net of cash acquired	22,449	38,583	21,843
Liabilities	(33,342)	(75,364)	(32,340)
Net assets acquired	$ 92,450	$ 369,235	$ 179,591