CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
CASH FLOW FROM OPERATING ACTIVITIES
Net loss	$ (66,987)	$ (10,933)
Adjustments to reconcile net loss to net cash used in operating activities:
Equity in loss of unconsolidated entities	33,076	1,162
Distributions from unconsolidated entities		1,042
Loss/(gain) on sale of real estate, net	1,015	(24,208)
Impairment of real estate assets	991	1,700
Share-based compensation	425	911
Depreciation and amortization	11,934	13,142
Amortization of deferred financing costs	105	106
Amortization of above and below market leases, net	65	(39)
Straight-line rent adjustment	(721)	210
Interest on sale-leaseback financing obligations	12
Change in operating assets and liabilities
Tenants and other receivables	(8,340)	294
Prepaid expenses, deferred expenses and other assets	868	1,151
Accounts payable, accrued expenses and other liabilities	(2,491)	(7,635)
Net cash used in operating activities	(30,048)	(23,097)
CASH FLOW FROM INVESTING ACTIVITIES
Investment in unconsolidated entities	(7,613)	(9,902)
Distributions from unconsolidated entities	99
Net proceeds from sale of real estate	8,467	55,221
Development of real estate	(22,474)	(26,804)
Net cash (used in) provided by investing activities	(21,521)	18,515
CASH FLOW FROM FINANCING ACTIVITIES
Proceeds from issuance of common stock and non-controlling interest		4
Proceeds from sale-leaseback financing obligations		153
Purchase of shares related to stock grant recipients' tax withholdings		(138)
Preferred dividends paid	(1,225)	(1,225)
Net cash used in financing activities	(1,225)	(1,206)
Net decrease in cash and cash equivalents	(52,794)	(5,788)
Cash and cash equivalents, and restricted cash, beginning of period	113,753	150,254
Cash and cash equivalents, and restricted cash, end of period	60,959	144,466
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents [Abstract]
Cash and cash equivalents at beginning of period	106,602	143,728
Restricted cash at beginning of period	7,151	6,526
Cash and cash equivalents at end of period	53,807	137,940
Restricted cash at end of period	7,152	6,526
Cash and cash equivalents and restricted cash	60,959	144,466
SUPPLEMENTAL DISCLOSURE OF CASH FLOW INFORMATION
Cash payments for interest	26,063	27,999
Capitalized interest	3,736	2,954
Income taxes paid (refunded)	25	(138)
SUPPLEMENTAL DISCLOSURE OF NON-CASH INVESTING AND FINANCING ACTIVITIES
Development of real estate financed with accounts payable	19,968	8,079
Preferred dividends declared and unpaid	1,225	1,225
Transfer to / (from) real estate assets held for sale	$ 92,078	$ 22,577