Consolidated Statements of Cash Flows (Unaudited) (USD $)	9 Months Ended
	Sep. 30, 2011		Sep. 30, 2010
Operating activities
Net income	$ 170,373,000		$ 82,850,000
Adjustments to reconcile net income to net cash provided from (used in) operating activities:
Depreciation and amortization	301,461,000		143,424,000
Other amortization expenses	12,024,000		13,178,000
Provision for loan losses	547,000		28,918,000
Impairment of assets	202,000		947,000
Stock-based compensation expense	9,041,000		9,757,000
Loss (gain) on extinguishment of debt	0		34,171,000
Income from unconsolidated joint ventures	(4,156,000)		(4,496,000)
Rental income in excess of cash received	(19,596,000)		(6,200,000)
Amortization related to above (below) market leases, net	(1,588,000)		(2,112,000)
Loss (gain) on sales of properties	(56,565,000)		(20,559,000)
Increase (decrease) in accrued expenses and other liabilities	20,781,000		10,139,000
Decrease (increase) in receivables and other assets	(14,891,000)		(1,413,000)
Net cash provided from (used in) operating activities	417,633,000		288,604,000
Investing activities
Investment in real property, net of cash acquired	(4,030,444,000)		(800,964,000)
Capitalized interest	(10,090,000)		(16,008,000)
Investment in real estate loans receivable	(36,504,000)		(52,499,000)
Other investments, net of payments	(6,526,000)		(75,349,000)
Principal collected on real estate loans receivable	149,019,000		18,819,000
Contributions to unconsolidated joint ventures	(779,000)		(174,692,000)
Distributions from unconsolidated joint ventures	13,260,000		0
Decrease (increase) in restricted cash	27,844,000		(34,279,000)
Proceeds from sales of real property	221,585,000		134,722,000
Net cash provided from (used in) investing activities	(3,672,635,000)		(1,000,250,000)
Financing activities
Net increase (decrease) under unsecured lines of credit arrangements	90,000,000		(140,000,000)
Proceeds from issuance of senior unsecured notes	1,381,086,000		1,378,180,000
Payments to extinguish senior unsecured notes	0		(495,542,000)
Net proceeds from the issuance of secured debt	60,470,000		79,127,000
Payments on secured debt	(21,398,000)		(177,305,000)
Net proceeds from the issuance of common stock	1,490,681,000		486,565,000
Net proceeds from the issuance of preferred stock	696,437,000		0
Decrease (increase) in deferred loan expenses	(25,994,000)		(1,993,000)
Contributions by noncontrolling interests	9,655,000	[1]	2,491,000	[1]
Distributions to noncontrolling interests	(21,910,000)	[1]	(2,649,000)	[1]
Cash distributions to stockholders	(398,919,000)		(271,557,000)
Net cash provided from (used in) financing activities	3,260,108,000		857,317,000
Increase (decrease) in cash and cash equivalents	5,106,000		145,671,000
Cash and cash equivalents at beginning of period	131,570,000	[2]	35,476,000
Cash and cash equivalents at end of period	136,676,000		181,147,000
Supplemental cash flow information:
Interest paid	203,748,000		92,106,000
Income taxes paid	$ 320,000		$ 220,000

[1] Includes amounts attributable to redeemable noncontrolling interests.

[2] NOTE: The consolidated balance sheet at December 31, 2010 has been derived from the audited financial statements at that date but does not include all of the information and footnotes required by U.S. generally accepted accounting principles for complete financial statements.