Stockholders' Equity (Summary Of The Option And Stock Appreciation Rights Activity) (Details) (USD $)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Number of Options/SARs, Outstanding, December 31, 2012	373,899
Number of Options/SARs, Exercised	(145)
Number of Options/SARs, Forfeited	(184,807)
Number of Options/SARs, Outstanding, December 31, 2013	188,947
Weighted Average Exercise Price per Share, Outstanding, December 31, 2012	$ 43.90
Weighted Average Exercise Price per Share, Exercised	$ 6.80
Weighted Average Exercise Price per Share, Forfeited	$ 39.34
Weighted Average Exercise Price per Share, Outstanding, December 31, 2013	$ 48.38
Minimum [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Range of Exercise Price, Outstanding, December 31, 2012	$ 1.63	$ 1.63
Range of Exercise Price, Granted	$ 0.00
Range of Exercise Price, Exercised	$ 6.80
Range of Exercise Price, Forfeited	$ 1.69
Range of Exercise Price, Outstanding, December 31, 2013	$ 1.63	$ 1.63
Maximum [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Range of Exercise Price, Outstanding, December 31, 2012	$ 116.40	$ 116.40
Range of Exercise Price, Granted	$ 0.00
Range of Exercise Price, Exercised	$ 6.80
Range of Exercise Price, Forfeited	$ 68.60
Range of Exercise Price, Outstanding, December 31, 2013	$ 116.40	$ 116.40