Organization And Summary Of Significant Accounting Policies (Schedule Of Preferred Stock) (Details) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014
Class of Stock [Line Items]
Shares Outstanding	7,600,000	7,600,000
Series B Preferred Shares [Member]
Class of Stock [Line Items]
Shares Outstanding	4,600,000	4,600,000
Aggregate Liquidation Preference	$ 115,000
Distribution Rate	8.00%
Dividend Per Share	$ 2.0000	$ 2.0000
Series C Preferred Shares [Member]
Class of Stock [Line Items]
Shares Outstanding	3,000,000	3,000,000
Aggregate Liquidation Preference	$ 75,000
Distribution Rate	6.875%
Dividend Per Share	$ 1.7188	$ 1.7188