Equity-Based Compensation Plans (Summary Of Outstanding Stock Options) (Details) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]
Outstanding at January 1, (in shares)	12,859	83,827
Shares exercised	(12,859)	(70,968)
Outstanding and exercisable at December 31, (in shares)	0	12,859
Outstanding at January 1, Weighted Avg. Exercise Price (in dollars per share)	$ 30.92	$ 27.46
Shares exercised, Weighted Avg. Exercise Price (in dollars per share)	30.92	26.25
Outstanding and exercisable at December 31, Weighted Avg. Exercise Price (in dollars per share)	$ 0.00	$ 30.92
Shares exercised, Aggregate Intrinsic Value	$ 150	$ 1,423