Consolidated Statements of Cash Flows (USD $) In Thousands	9 Months Ended
	Sep. 30, 2011	Sep. 30, 2010
CASH FLOWS FROM OPERATING ACTIVITIES:
Net income	$ 75,120	$ 59,397
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	211,582	216,016
Net amortization of deferred finance costs and debt premiums	8,143	5,219
Net amortization of intangible lease assets and liabilities	(1,179)	(1,481)
Gain on sales of real estate assets	(3,637)	(2,577)
Realized foreign currency loss	0	169
Gain on sale of discontinued operations	(86)	(29)
Write-off of development projects	51	420
Share-based compensation expense	1,769	1,932
Income tax effect of share-based compensation	0	(1,815)
Net realized loss on sale of available-for-sale securities	22	0
Write down of mortgage and other notes receivable	1,900	0
Loss on impairment of real estate	55,761	0
Loss on impairment of real estate from discontinued operations	2,239	25,435
Gain on extinguishment of debt	(581)	0
Gain on extinguishment of debt from discontinued operations	(31,434)	0
Equity in (earnings) losses of unconsolidated affiliates	(4,222)	610
Distributions of earnings from unconsolidated affiliates	6,171	3,554
Provision for doubtful accounts	1,999	2,950
Change in deferred tax accounts	(5,032)	2,245
Changes in:
Tenant and other receivables	(3,908)	(8,623)
Other assets	552	(5,918)
Accounts payable and accrued liabilities	2,905	(7,666)
Net cash provided by operating activities	318,135	289,838
CASH FLOWS FROM INVESTING ACTIVITIES:
Additions to real estate assets	(149,321)	(80,689)
Acquisition of real estate assets	(12,172)	0
(Additions) reductions to restricted cash	(13,571)	16,837
Proceeds from sales of real estate assets	20,495	5,485
Additions to mortgage and other notes receivable	(5,300)	0
Payments received on mortgage and other notes receivable	4,817	1,485
Net purchases of available-for-sale securities	0	(9,975)
Additional investments in and advances to unconsolidated affiliates	(20,041)	(22,019)
Distributions in excess of equity in earnings of unconsolidated affiliates	13,094	28,548
Changes in other assets	(10,770)	(4,089)
Net cash used in investing activities	(172,769)	(64,417)
CASH FLOWS FROM FINANCING ACTIVITIES:
Proceeds from mortgage and other indebtedness	1,373,265	637,113
Principal payments on mortgage and other indebtedness	(1,315,890)	(824,371)
Additions to deferred financing costs	(16,154)	(4,418)
Proceeds from issuances of common stock	136	104
Proceeds from issuances of preferred stock	0	121,268
Proceeds from exercises of stock options	1,955	942
Income tax effect of share-based compensation	0	1,815
Contributions from noncontrolling interests	1,040	0
Distributions to noncontrolling interests	(55,033)	(64,409)
Dividends paid to holders of preferred stock	(31,782)	(22,745)
Dividends paid to common shareholders	(91,887)	(62,114)
Net cash used in financing activities	(134,350)	(216,815)
NET CHANGE IN CASH AND CASH EQUIVALENTS	11,016	8,606
CASH AND CASH EQUIVALENTS, end of period	50,896	48,062
CASH AND CASH EQUIVALENTS, end of period	61,912	56,668
SUPPLEMENTAL INFORMATION:
Cash paid for interest, net of amounts capitalized	$ 202,097	$ 212,343