CONDENSED CONSOLIDATED BALANCE SHEETS (Unaudited) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2013	Dec. 31, 2012
Assets:
Real estate, at cost	$ 3,616,618	$ 3,564,466
Real estate - intangible assets	694,557	685,914
Investments in real estate under construction	23,099	65,122
Real estate, gross	4,334,274	4,315,502
Less: accumulated depreciation and amortization	1,197,732	1,150,417
Real estate, net	3,136,542	3,165,085
Cash and cash equivalents	74,278	34,024
Restricted cash	20,521	26,741
Investment in and advances to non-consolidated entities	11,224	27,129
Deferred expenses, net	63,679	57,549
Loans receivable, net	88,994	72,540
Rent receivable – current	8,505	7,355
Rent receivable – deferred	1,965	0
Other assets	38,566	27,780
Total assets	3,444,274	3,418,203
Liabilities:
Mortgages and notes payable	1,043,934	1,415,961
Term loans payable	319,000	255,000
Senior notes payable	247,585	0
Convertible notes payable	38,666	78,127
Trust preferred securities	129,120	129,120
Dividends payable	33,990	31,351
Accounts payable and other liabilities	56,891	70,367
Accrued interest payable	9,942	11,980
Deferred revenue - including below market leases, net	71,205	79,908
Prepaid rent	18,394	13,224
Total liabilities	1,968,727	2,085,038
Commitments and contingencies
Equity:
Common shares, par value $0.0001 per share; authorized 400,000,000 shares, 214,234,685 and 178,616,664 shares issued and outstanding in 2013 and 2012, respectively	21	18
Additional paid-in-capital	2,568,198	2,212,949
Accumulated distributions in excess of net income	(1,215,793)	(1,143,803)
Accumulated other comprehensive income (loss)	3,912	(6,224)
Total shareholders’ equity	1,450,354	1,306,730
Noncontrolling interests	25,193	26,435
Total equity	1,475,547	1,333,165
Total liabilities and equity	3,444,274	3,418,203
Series C | Cumulative Convertible
Equity:
Preferred shares, value	94,016	94,016
Series D | Cumulative Redeemable
Equity:
Preferred shares, value	$ 0	$ 149,774