Investments In And Advances To Unconsolidated Joint Ventures And Entities (Schedule Of Balance Sheet And Statement Of Operations Data Of Unconsolidated Joint Ventures And Equity Method Investments) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Schedule of Equity Method Investments [Line Items]
Current assets	$ 3,255	$ 3,488
Noncurrent assets	5,934	6,621
Current liabilities	2,516	2,197
Noncurrent liabilities	670	751
Members' equity	6,002	7,161
Total revenue	23,070	26,138	28,017
Net income	3,598	4,590	4,021
Mt. Gravatt [Member]
Schedule of Equity Method Investments [Line Items]
Current assets	887	1,318
Noncurrent assets	3,288	4,078
Current liabilities	751	1,111
Noncurrent liabilities	30	43
Members' equity	3,394	4,242
Total revenue	12,949	15,236	14,097
Net income	$ 2,923	$ 3,513	$ 3,045