Discontinued Operations (Schedule Of Discontinued Operating Results) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012	Sep. 30, 2011
Discontinued Operations [Line Items]
Revenues, net	$ 4,915	$ 20,499	$ 36,938	$ 61,292
Depreciation and amortization	(318)	(6,784)	(6,391)	(20,344)
Operating expenses	(783)	(3,772)	(6,892)	(10,901)
Real estate taxes, net	(653)	(3,330)	(5,294)	(9,259)
Impairment loss	(177)	(18,531)	(5,502)	(21,420)
General and administrative	(216)	(15)	(2,177)	(47)
Interest expense, net	(132)	(339)	(617)	(1,716)
Gain on acquisition (see Note 18)	0	0	0	4,559
Provision for income taxes	0	0	(302)	(362)
Operating income (loss) from discontinued operations	2,636	(12,272)	9,763	1,802
Gain on sale of property from discontinued operations	14,826	586	49,724	586
Income (loss) from discontinued operations	$ 17,462	$ (11,686)	$ 59,487	$ 2,388