CONDENSED CONSOLIDATED BALANCE SHEETS (Unaudited) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2012	Dec. 31, 2011
Assets:
Real estate, at cost	$ 3,160,236	$ 3,172,246
Investments in real estate under construction	57,250	34,529
Less: accumulated depreciation and amortization	693,627	638,368
Real estate, net	2,523,859	2,568,407
Intangible assets, net	163,718	178,569
Cash and cash equivalents	50,189	63,711
Restricted cash	30,497	30,657
Investment in and advances to non-consolidated entities	96,826	90,558
Deferred expenses, net	47,454	43,966
Loans receivable, net	71,439	66,619
Rent receivable	6,972	7,271
Other assets	26,992	28,290
Total assets	3,017,946	3,078,048
Liabilities:
Mortgages and notes payable	1,263,228	1,366,004
Credit facility borrowings	35,000	0
Term loan payable	206,000	0
Exchangeable notes payable	0	62,102
Convertible notes payable	106,118	105,149
Trust preferred securities	129,120	129,120
Dividends payable	23,987	25,273
Accounts payable and other liabilities	59,592	53,058
Accrued interest payable	11,941	13,019
Deferred revenue - below market leases, net	85,645	90,349
Prepaid rent	16,787	12,543
Total liabilites	1,937,418	1,856,617
Commitments and contingencies
Equity:
Common shares, par value $0.0001 per share; authorized 400,000,000 shares, 155,760,185 and 154,938,351 shares issued and outstanding in 2012 and 2011,respectively	16	15
Additional paid-in-capital	2,017,563	2,010,850
Accumulated distributions in excess of net income	(1,205,562)	(1,161,402)
Accumulated other comprehensive	(3,621)	1,938
Total shareholders' equity	1,052,186	1,163,074
Noncontrolling interests	28,342	58,357
Total equity	1,080,528	1,221,431
Total liabilities and equity	3,017,946	3,078,048
Series B | Cumulative Redeemable
Equity:
Preferred shares, value	0	66,193
Series C | Cumulative Convertible
Equity:
Preferred shares, value	94,016	95,706
Series D | Cumulative Redeemable
Equity:
Preferred shares, value	$ 149,774	$ 149,774