Consolidated Balance Sheets (Unaudited) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2013	Dec. 31, 2012
Investment properties:
Land	$ 1,261,347	$ 1,882,715
Building and other improvements	6,614,790	8,679,105
Construction in progress	178,310	337,384
Total	8,054,447	10,899,204
Less accumulated depreciation	(1,204,624)	(1,581,524)
Net investment properties	6,849,823	9,317,680
Cash and cash equivalents	383,802	220,779
Restricted cash and escrows	132,637	104,027
Investment in marketable securities	249,593	327,655
Investment in unconsolidated entities	306,442	253,799
Accounts and rents receivable (net of allowance of $8,367 and $10,348)	72,895	121,773
Intangible assets, net	169,393	298,828
Deferred costs and other assets	106,886	115,343
Assets held for sale	1,243,118	0
Total assets	9,514,589	10,759,884
Liabilities
Debt	3,988,385	6,006,146
Accounts payable and accrued expenses	153,947	142,835
Distributions payable	37,712	37,059
Intangible liabilities, net	59,502	80,769
Other liabilities	88,385	150,325
Liabilities held for sale	879,992	0
Total liabilities	5,207,923	6,417,134
Commitments and contingencies
Stockholders’ Equity
Preferred stock, $.001 par value, 40,000,000 shares authorized, none outstanding	0	0
Common stock, $.001 par value, 1,460,000,000 shares authorized, 905,089,271 and 889,424,572 shares issued and outstanding	905	889
Additional paid in capital	8,030,508	7,921,913
Accumulated distributions in excess of net loss	(3,791,975)	(3,664,591)
Accumulated other comprehensive income	67,103	84,414
Total Company stockholders’ equity	4,306,541	4,342,625
Noncontrolling interests	125	125
Total equity	4,306,666	4,342,750
Total liabilities and equity	$ 9,514,589	$ 10,759,884