Investments In Unconsolidated Joint Ventures (Summary Of Results Of Operations Of Unconsolidated Joint Ventures) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Investments In Unconsolidated Joint Ventures [Abstract]
Total revenues	$ 318,980	$ 305,034	$ 255,510
Operating and other expenses	(220,982)	(233,320)	(217,739)
Depreciation and amortization	(71,711)	(42,985)	(32,889)
Interest expense	(52,972)	(32,862)	(16,709)
Net loss	$ (26,685)	$ (4,133)	$ (11,827)