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Real Estate Acquisitions And Discontinued Operations (Operating Results Of Properties Classified As Discontinued Operations) (Details) (USD $) In Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2011	Sep. 30, 2010	Sep. 30, 2011	Sep. 30, 2010
Real estate impairment			$ (599)
Income from operations of properties held for sale	3,655	3,565	9,522	11,047
Discontinued Properties [Member]
Revenues	6,597	11,241	25,612	36,410
Property expenses	(1,768)	(3,239)	(7,564)	(11,866)
Real estate impairment			(599)
Depreciation and amortization	(943)	(4,054)	(7,231)	(11,981)
Interest expense	(231)	(383)	(696)	(1,516)
Income from operations of properties held for sale	$ 3,655	$ 3,565	$ 9,522	$ 11,047

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After tax income (loss) from operations of a business component (exclusive of any gain (loss) on disposal, or provision therefore) during the reporting period, until its disposal.

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