Basis Of Presentation (Schedule Of Preferred Stock) (Details) (USD $) In Thousands, except Share data, unless otherwise specified	6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Dec. 31, 2012
Class of Stock [Line Items]
Shares Outstanding	7,600,000		7,000,000
Series A Preferred Shares [Member]
Class of Stock [Line Items]
Shares Outstanding			2,400,000
Liquidation Preference	$ 60,000
Distribution Rate	8.00%
Dividend Per Share	$ 0.50	$ 1.00
Series B Preferred Shares [Member]
Class of Stock [Line Items]
Shares Outstanding	4,600,000		4,600,000
Liquidation Preference	115,000
Distribution Rate	8.00%
Dividend Per Share	$ 1.00	$ 1.00
Series C Preferred Shares [Member]
Class of Stock [Line Items]
Shares Outstanding	3,000,000
Liquidation Preference	$ 75,000
Distribution Rate	6.875%
Dividend Per Share	$ 0.6159