Stock-Based Compensation (Schedule Of Share-Based Compensation Stock Options Activity) (Details) (USD $) In Thousands, except Per Share data, unless otherwise specified	6 Months Ended
	Jun. 30, 2013
Share-based Arrangements with Employees and Nonemployees [Abstract]
Number of Options Outstanding at beginning of period	800
Number of Options granted	0
Number of Options exercised	(41)
Number of Options forfeited	(5)
Number of Options expired	0
Number of Options Outstanding at end of period	754
Number of Options Exercisable at end of period	571
Weighted Average Exercise Price Outstanding at beginning of period	$ 17.92
Weighted Average Exercise Price Options granted	$ 0.00
Weighted Average Exercise Price Options exercised	$ 17.93
Weighted Average Exercise Price Options forfeited	$ 20.39
Weighted Average Exercise Price Options expired	$ 0.00
Weighted Average Exercise Price Outstanding at end of period	$ 17.90
Weighted Average Exercise Price Exercisable at end of period	$ 17.60
Weighted Average Remaining Contractual Term Outstanding at end of period, Years	3 years 6 months 15 days
Weighted Average Remaining Contractual Term Exercisable at end of period, Years	2 years 9 months
Aggregate Intrinsic Value Outstanding at end of period	$ 4,727
Aggregate Intrinsic Value Exercisable at end of period	$ 3,750