CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS $ in Thousands	3 Months Ended	6 Months Ended
	Jun. 30, 2022 USD ($)	Jun. 30, 2022 USD ($)	Jun. 30, 2021 USD ($)
CASH FLOW FROM OPERATING ACTIVITIES
Net loss	$ (142,083)	$ (209,070)	$ (106,237)
Adjustments to reconcile net loss to net cash used in operating activities:
Equity in loss of unconsolidated entities	33,720	66,796	3,489
Distributions from unconsolidated entities			1,141
(Gain) on sale of real estate, net		(67,016)	(42,305)
Impairment of real estate assets	109,343	110,334	66,239
Share-based compensation		892	953
Depreciation and amortization	10,669	22,603	26,470
Amortization of deferred financing costs		211	212
Amortization of above and below market leases, net		121	63
Straight-line rent adjustment		(4,320)	(1,028)
Interest on sale-leaseback financing obligations		25
Litigation reserve	35,000	35,000
Change in operating assets and liabilities
Tenants and other receivables		(10,370)	3,436
Prepaid expenses, deferred expenses and other assets		1,713	(1,224)
Accounts payable, accrued expenses and other liabilities		(1,420)	(18,811)
Net cash used in operating activities		(54,501)	(67,602)
CASH FLOW FROM INVESTING ACTIVITIES
Investment in unconsolidated entities		(15,432)	(21,279)
Distributions from unconsolidated entities		160
Net proceeds from sale of real estate		168,186	133,313
Development of real estate		(53,032)	(44,949)
Net cash provided by investing activities		99,882	67,085
CASH FLOW FROM FINANCING ACTIVITIES
Proceeds from sale-leaseback financing obligations			183
Purchase of shares related to stock grant recipients' tax withholdings			(262)
Preferred dividends paid		(2,450)	(2,450)
Net cash used in financing activities		(2,450)	(2,529)
Net increase/(decrease) in cash and cash equivalents		42,931	(3,046)
Cash and cash equivalents, and restricted cash, beginning of period		113,753	150,254
Cash and cash equivalents, and restricted cash, end of period	156,684	156,684	147,208
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	149,529	149,529	140,058
Restricted cash at end of period	7,155	7,155	7,150
Cash and cash equivalents and restricted cash	$ 156,684	156,684	147,208
SUPPLEMENTAL DISCLOSURE OF CASH FLOW INFORMATION
Cash payments for interest		52,188	56,620
Capitalized interest		7,674	5,722
Income taxes paid		228	160
SUPPLEMENTAL DISCLOSURE OF NON-CASH INVESTING AND FINANCING ACTIVITIES
Development of real estate financed with accounts payable		28,561	8,090
Preferred dividends declared and unpaid		1,225	1,225
Transfer to real estate assets held for sale		$ 117,013	$ 29,059