Consolidated Balance Sheets (USD $) In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013
Real estate owned:
Real estate held for investment	$ 8,205,627	$ 7,723,844
Less: accumulated depreciation	(2,434,772)	(2,200,815)
Real estate held for investment, net	5,770,855	5,523,029
Real estate under development (net of accumulated depreciation of $0 and $1,411, respectively)	177,632	466,002
Real estate sold or held for sale (net of accumulated depreciation of $0 and $6,568, respectively)	0	10,152
Total real estate owned, net of accumulated depreciation	5,948,487	5,999,183
Cash and cash equivalents	15,224	30,249
Restricted Cash and Investments, Current	22,340	22,796
Deferred financing costs, net	22,686	26,924
Notes receivable, net	14,369	83,033
Investment in and advances to unconsolidated joint ventures, net	718,226	507,655
Other assets	105,202	137,882
Total assets	6,846,534	6,807,722
Liabilities:
Secured debt	1,361,529	1,442,077
Unsecured debt	2,221,576	2,081,626
Real estate taxes payable	15,978	13,847
Accrued interest payable	34,215	32,279
Security deposits and prepaid rent	34,064	27,203
Distributions payable	69,460	61,907
Accounts payable, accrued expenses, and other liabilities	91,282	118,682
Total liabilities	3,828,104	3,777,621
Redeemable non-controlling interests in operating partnership	282,480	217,597
Equity
Preferred stock, no par value; 50,000,000 shares authorized	46,571	46,571
Common stock, $0.01 par value; 350,000,000 shares authorized 255,114,603 and 250,749,665 shares issued and outstanding December 31, 2014 and 2013, respectively	2,551	2,507
Additional paid-in capital	4,223,747	4,109,765
Distributions in excess of net income	(1,528,917)	(1,342,070)
Accumulated other comprehensive income/(loss), net	(8,855)	(5,125)
Total stockholders' equity	2,735,097	2,811,648
Non-controlling interest	853	856
Total equity	2,735,950	2,812,504
Total liabilities and equity	$ 6,846,534	$ 6,807,722