Stock-Based Compensation (Summary Of Stock Options, By Exercise Price Range) (Details) (USD $)	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013
Stock-Based Compensation Plans [Abstract]
Options Outstanding, Range of Exercise Prices, Lower Limit	$ 14.55
Options Outstanding, Range of Exercise Prices, Upper Limit	$ 27.81
Outstanding, Options, Ending Balance	240,308	235,010
Options Outstanding, Weighted Average Remaining Contractual Term (years)	6 years 5 months 23 days
Options Outstanding, Weighted Average Exercise Price	$ 22.21
Options Exercisable, Number Exercisable	90,520
Options Exercisable, Weighted Average Remaining Contractual Term	4 years 2 months 27 days
Options Exercisable, Weighted Average Exercise Price	$ 20.67