Share-Based Payments (Schedule Of Information Regarding Stock Options Outstanding) (Details) (USD $) In Thousands, except Per Share data, unless otherwise specified	6 Months Ended
	Jun. 30, 2014	Dec. 31, 2013
Share-based Compensation [Abstract]
Options outstanding, Number	152	248
Options outstanding, weighted average per share exercise price	$ 52.07	$ 45.72
Options outstanding, aggregate intrinsic value	$ 1,120
Options outstanding, weighted average remaining contractual term (in years)	7 years 1 month 7 days
Options exercisable, Number	78
Options exercisable, weighted average per share exercise price	$ 50.70
Options exercisable, aggregate intrinsic value	$ 685
Options exercisable, weighted average remaining contractual term (in years)	6 years 2 months 6 days