CONSOLIDATED STATEMENTS OF OPERATIONS (Unaudited) (USD $) In Thousands, except Per Share data	3 Months Ended		9 Months Ended
	Sep. 30, 2011	Sep. 30, 2010	Sep. 30, 2011	Sep. 30, 2010
REVENUES
Rental income	$ 509,030	$ 451,832	$ 1,470,398	$ 1,311,377
Fee and asset management	2,928	2,128	6,682	7,596
Total revenues	511,958	453,960	1,477,080	1,318,973
EXPENSES
Property and maintenance	106,635	104,259	314,768	303,916
Real estate taxes and insurance	59,083	56,205	168,056	160,307
Property management	19,241	19,014	62,389	59,770
Fee and asset management	1,250	679	3,207	4,242
Depreciation	164,552	158,318	482,039	457,822
General and administrative	10,121	10,221	32,462	31,029
Total expenses	360,882	348,696	1,062,921	1,017,086
Operating income	151,076	105,264	414,159	301,887
Interest and other income	5,317	201	6,608	5,045
Other expenses	(2,528)	(3,487)	(9,318)	(9,513)
Interest:
Expense incurred, net	(113,370)	(121,116)	(354,960)	(348,279)
Amortization of deferred financing costs	(4,721)	(2,437)	(12,129)	(7,729)
Income (loss) before income and other taxes, (loss) income from investments in unconsolidated entities, net gain (loss) on sales of unconsolidated entities and land parcels and discontinued operations	35,774	(21,575)	44,360	(58,589)
Income and other tax (expense) benefit	(283)	(291)	(669)	(283)
(Loss) income from investments in unconsolidated entities		188		(735)
Net gain on sales of unconsolidated entities		22,544		28,101
Net gain (loss) on sales of land parcels		(1,161)	4,217	(1,161)
Income (loss) from continuing operations	35,491	(295)	47,908	(32,667)
Discontinued operations, net	77,486	30,121	779,888	130,438
Net income	112,977	29,826	827,796	97,771
Net (income) loss attributable to Noncontrolling Interests:
Operating Partnership	(4,742)	(1,231)	(36,275)	(4,167)
Partially Owned Properties	(387)	188	(418)	623
Net income attributable to controlling interests	107,848	28,783	791,103	94,227
Preferred distributions	(3,466)	(3,617)	(10,399)	(10,855)
Net income available to Common Shares	$ 104,382	$ 25,166	$ 780,704	$ 83,372
Earnings per share - basic:
Income (loss) from continuing operations available to Common Shares	$ 0.10	$ (0.01)	$ 0.12	$ (0.15)
Net income available to Common Shares	$ 0.35	$ 0.09	$ 2.65	$ 0.30
Weighted average Common Shares outstanding	295,831	282,717	294,474	281,867
Earnings per share - diluted:
Income (loss) from continuing operations available to Common Shares	$ 0.10	$ (0.01)	$ 0.12	$ (0.15)
Net income available to Common Shares	$ 0.35	$ 0.09	$ 2.62	$ 0.30
Weighted average Common Shares outstanding	312,844	282,717	311,908	281,867
Distributions declared per Common Share outstanding	$ 0.3375	$ 0.3375	$ 1.0125	$ 1.0125