Share-Based Payments (Schedule Of Information Regarding Stock Options Outstanding) (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended
	Jun. 30, 2015	Dec. 31, 2014
Share-based Compensation [Abstract]
Options outstanding, Number	56	128
Options outstanding, weighted average per share exercise price	$ 52.48	$ 52.59
Options outstanding, aggregate intrinsic value	$ 1,320
Options outstanding, weighted average remaining contractual term (in years)	6 years 9 months 29 days
Options exercisable, Number	40
Options exercisable, weighted average per share exercise price	$ 51.79
Options exercisable, aggregate intrinsic value	$ 972
Options exercisable, weighted average remaining contractual term (in years)	6 years 7 months 2 days