Consolidated Statements of Cash Flows (Unaudited) (USD $) In Thousands, unless otherwise specified	9 Months Ended
	Sep. 30, 2012		Sep. 30, 2011
Operating activities
Net income	$ 187,836		$ 170,373
Adjustments to reconcile net income to net cash provided from (used in) operating activities:
Depreciation and amortization	393,243		301,461
Other amortization expenses	11,702		12,024
Provision for loan losses	27,008		547
Impairment of assets	6,952		202
Stock-based compensation expense	16,229		9,041
Loss (gain) on derivatives, net	1,712		0
Loss (gain) on extinguishment of debt, net	791		0
Income from unconsolidated entities	(2,250)		(4,156)
Rental income in excess of cash received	(32,069)		(19,596)
Amortization related to above (below) market leases, net	767		(1,588)
Loss (gain) on sales of properties, net	(46,046)		(56,565)
Distributions by unconsolidated entities	3,920		0
Increase (decrease) in accrued expenses and other liabilities	16,417		20,781
Decrease (increase) in receivables and other assets	(19,318)		(14,891)
Net cash provided from (used in) operating activities	563,470		417,633
Investing activities
Investment in real property, net of cash acquired	(2,119,796)		(4,030,444)
Capitalized interest	(7,113)		(10,090)
Investment in real estate loans receivable	(35,894)		(36,504)
Other investments, net of payments	26,752		(6,526)
Principal collected on real estate loans receivable	16,577		149,019
Contributions to unconsolidated entities	(227,735)		(779)
Distributions by unconsolidated entities	12,592		13,260
Proceeds from (payments on) derivatives	4,435		0
Decrease (increase) in restricted cash	(69,809)		27,844
Proceeds from sales of real property	302,377		221,585
Net cash provided from (used in) investing activities	(2,097,614)		(3,672,635)
Financing activities
Net increase (decrease) under unsecured lines of credit arrangements	(610,000)		90,000
Proceeds from issuance of senior unsecured notes	842,323		1,381,086
Payments to extinguish senior unsecured notes	(370,524)		0
Secured debt issued	145,713		60,470
Payments on secured debt	(272,399)		(20,285)
Net proceeds from the issuance of common stock	3,536,232		1,490,681
Net proceeds from the issuance of preferred stock	277,687		696,437
Redemption of preferred stock	(275,000)		0
Decrease (increase) in deferred loan expenses	(5,119)		(25,994)
Contributions by noncontrolling interests	12,106	[1]	9,655	[1]
Distributions to noncontrolling interests	(15,283)	[1]	(21,910)	[1]
Cash distributions to stockholders	(513,463)		(398,919)
Other financing activities	641		(1,113)
Net cash provided from (used in) financing activities	2,752,914		3,260,108
Effect of foreign currency translation on cash and cash equivalents	0		0
Increase (decrease) in cash and cash equivalents	1,218,770		5,106
Cash and cash equivalents at beginning of period	163,482		131,570
Cash and cash equivalents at end of period	1,382,252		136,676
Supplemental cash flow information:
Interest paid	275,246		203,748
Income taxes paid	$ 3,012		$ 320

[1] Includes amounts attributable to redeemable noncontrolling interests.