Shareholders' Equity (Schedule Of Dividends Declared And Paid) (Details) (USD $)	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Class of Stock [Line Items]
Common stock	$ 0.050	$ 0.050	$ 0.150	$ 0.150
Series A [Member]
Class of Stock [Line Items]
Cumulative Redeemable Preferred Stock		$ 0.555	$ 0.555	$ 1.109
Series B [Member]
Class of Stock [Line Items]
Cumulative Redeemable Preferred Stock	$ 0.453	$ 0.453	$ 1.359	$ 0.453