Investments In Unconsolidated Joint Ventures (Summary Of Results Of Operations Of Unconsolidated Joint Ventures) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Investments In Unconsolidated Joint Ventures [Abstract]
Total revenues	$ 80,711	$ 99,117	$ 224,822	$ 202,810
Operating and other expenses	(58,684)	(48,621)	(173,642)	(137,889)
Depreciation and amortization	(15,134)	(11,556)	(31,715)	(24,730)
Interest expense	(11,296)	(3,934)	(26,423)	(9,256)
Net income (loss)	$ (4,403)	$ 35,006	$ (6,958)	$ 30,935