Share-Based Payments (Schedule Of Information Regarding Stock Options Outstanding) (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended
	Sep. 30, 2015	Dec. 31, 2014
Share-based Compensation [Abstract]
Options outstanding (in shares)	55	128
Options outstanding, weighted average per share exercise price (in usd per share)	$ 52.40	$ 52.59
Options outstanding, aggregate intrinsic value	$ 284
Options outstanding, weighted average remaining contractual term (in years)	6 years 6 months 29 days
Options exercisable (in shares)	39
Options exercisable, weighted average per share exercise price (in usd per share)	$ 51.67
Options exercisable, aggregate intrinsic value	$ 240
Options exercisable, weighted average remaining contractual term (in years)	6 years 4 months 2 days