Discontinued Operations (Schedule Of Discontinued Operating Results) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012	Jun. 30, 2011
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Revenues, net	$ 11,422	$ 18,478	$ 27,638	$ 36,398
Depreciation and amortization	(177)	(6,356)	(4,928)	(12,408)
Operating expenses	(2,584)	(3,296)	(5,511)	(6,487)
Real estate taxes, net	(1,549)	(2,669)	(4,138)	(5,411)
Impairment loss	(758)	(2,434)	(3,929)	(2,889)
General and administrative	(1,946)	(12)	(1,961)	(32)
Interest expense, net	(76)	(288)	(223)	(521)
Gain on acquisition (see Note 18)	0	4,559	0	4,559
Provision for income taxes	(273)	(330)	(273)	(330)
Operating income from discontinued operations	4,059	7,652	6,675	12,879
Gain on sale of property from discontinued operations	31,264	0	34,898	0
Income from discontinued operations	$ 35,323	$ 7,652	$ 41,573	$ 12,879