Consolidated Balance Sheets (USD $) In Thousands, unless otherwise specified	Dec. 31, 2012		Dec. 31, 2011
ASSETS
Property	$ 4,399,850		$ 4,688,526
Accumulated Depreciation	(1,040,839)		(1,059,531)
Property Held for Sale, net	0		73,241
Property, net	3,359,011	[1]	3,702,236	[1]
Investment in Real Estate Joint Ventures and Partnerships, net	289,049		341,608
Total	3,648,060		4,043,844
Notes Receivable from Real Estate Joint Ventures and Partnerships	89,776		149,204
Unamortized Debt and Lease Costs, net	135,783		115,191
Accrued Rent and Accounts Receivable (net of allowance for doubtful accounts of $12,127 in 2012 and $11,301 in 2011)	79,540	[1]	86,530	[1]
Cash and Cash Equivalents	19,604	[1]	13,642	[1]
Restricted Deposits and Mortgage Escrows	44,096		11,144
Other, net	167,925		168,671
Total Assets	4,184,784		4,588,226
LIABILITIES AND EQUITY
Debt, net	2,204,030	[1]	2,531,837	[1]
Accounts Payable and Accrued Expenses	119,699		124,888
Other, net	120,900		107,919
Total Liabilities	2,444,629		2,764,644
Commitments and Contingencies	0		0
Shareholders' Equity:
Common Shares of Beneficial Interest - par value, $.03 per share; shares authorized: 275,000; shares issued and outstanding: 121,505 in 2012 and 120,844 in 2011	3,663		3,641
Additional Paid-In Capital	1,934,183		1,983,978
Net Income Less Than Accumulated Dividends	(335,980)		(304,504)
Accumulated Other Comprehensive Loss	(24,743)		(27,743)
Total Shareholders' Equity	1,577,130		1,655,380
Noncontrolling Interests	163,025		168,202
Total Equity	1,740,155		1,823,582
Total Liabilities and Equity	4,184,784		4,588,226
Consolidated Variable Interest Entities' Assets and Liabilities included in the above balances (See Note 22):
Property, net	226,685		230,159
Accrued Rent and Accounts Receivable, net	8,095		8,564
Cash and Cash Equivalents	11,706		11,382
Debt, net	$ 276,420		$ 279,301

[1] * Consolidated Variable Interest Entities' Assets and Liabilities included in the above balances (See Note 22):