CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
CASH FLOW FROM OPERATING ACTIVITIES
Net income (loss)	$ 16,201	$ (32,844)
Adjustments to reconcile net income (loss) to net cash provided by operating activities:
Equity in loss (income) of unconsolidated joint ventures	2,582	(1,002)
Gain on sale of real estate	(41,831)
Unrealized (gain) loss on interest rate cap	(165)	471
Stock-based compensation	869	390
Depreciation and amortization	34,667	58,663
Amortization of deferred financing costs	1,720	1,582
Amortization of above and below market leases, net	(234)	(195)
Straight-line rent adjustment	(2,453)	(1,534)
Change in operating assets and liabilities
Tenants and other receivables	1,034	419
Prepaid expenses, deferred expenses and other assets	(4,229)	(687)
Accounts payable, accrued expenses and other liabilities	(502)	9,039
Net cash provided by operating activities	7,659	34,302
CASH FLOW FROM INVESTING ACTIVITIES
Investment in unconsolidated joint ventures	(1,616)	(5,943)
Distributions from unconsolidated joint ventures	2,110	3,623
Net proceeds from sale of real estate	60,435
Development of real estate	(85,983)	(22,848)
Net cash used in investing activities	(25,054)	(25,168)
CASH FLOW FROM FINANCING ACTIVITIES
Repayment of mortgage loans payable	(73,034)
Proceeds from Future Funding Facility		7,011
Payment of deferred financing costs	(363)	(1,446)
Common dividends paid	(8,877)	(8,447)
Non-controlling interests distributions paid	(5,055)	(5,477)
Net cash used in financing activities	(87,329)	(8,359)
Net increase (decrease) in cash, cash equivalents, and restricted cash	(104,724)	775
Cash, cash equivalents, and restricted cash, beginning of period	417,234	139,642
Cash, cash equivalents, and restricted cash, end of period	312,510	140,417
SUPPLEMENTAL DISCLOSURE OF CASH FLOW INFORMATION
Cash payments for interest	21,105	16,052
Capitalized interest	6,862	1,177
Income taxes paid	104	119
SUPPLEMENTAL DISCLOSURE OF NON-CASH INVESTING AND FINANCING ACTIVITIES
Development of real estate financed with accounts payable	19,964	5,899
Dividends and distribution declared and unpaid	14,046	13,969
Decrease in real estate, net resulting from deconsolidated properties	(58,190)
RECONCILIATION OF CASH AND CASH EQUIVALENTS AND RESTRICTED CASH
Cash and cash equivalents	135,091	26,542
Restricted cash	177,419	113,875
Cash, cash equivalents, and restricted cash, end of period	$ 312,510	$ 140,417