Segment Information (Details 1) (USD $) In Thousands	3 Months Ended	6 Months Ended
Jun. 30, 2011	Jun. 30, 2010	Jun. 30, 2011	Jun. 30, 2010
Reconciliation of consolidated net operating income
Consolidated net operating income	$ 88,832	$ 82,603	$ 175,110	$ 165,135
Less:
Interest expense	(34,738)	(31,210)	(67,131)	(62,734)
Interest expense - amortization of deferred financing costs	(1,070)	(862)	(1,998)	(1,873)
Depreciation and amortization	(58,014)	(51,289)	(109,688)	(103,318)
Administrative expenses	(5,890)	(6,653)	(12,134)	(12,745)
Plus:
Interest income	421	963	862	1,828
Equity in income of real estate ventures	1,088	1,025	2,321	2,321
Net gain on sale of interests in real estate			2,791
Loss on early extinguishment of debt	(756)	(445)	(756)	(1,637)
Loss from continuing operations, Basic	(10,127)	(5,868)	(10,623)	(13,023)
Income from discontinued operations	3,893	268	3,899	7,024
Net loss	$ (6,234)	$ (5,600)	$ (6,724)	$ (5,999)

The component of interest expense comprised of the periodic charge against earnings over the life of the financing arrangement to which such costs relate.

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