Consolidated Statements of Cash Flows - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021
Operating Activities
Net (loss) income	$ (24,464)	$ 113,279
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	97,762	127,417
Equity in net loss from unconsolidated joint ventures	9,265	15,834
Distributions of cumulative earnings from unconsolidated joint ventures	343	174
Equity in net loss on sale of interest in unconsolidated joint venture interest/real estate	131	4,158
Purchase price and other fair value adjustments	6,231	(717)
Depreciable real estate reserves and impairment	0	5,696
Loss (gain) on sale of real estate, net	65,380	(97,572)
Deferred rents receivable	1,075	(7,144)
Non-cash lease expense	12,080	7,538
Other non-cash adjustments	(10,406)	18,137
Changes in operating assets and liabilities:
Tenant and other receivables	14,767	(2,493)
Related party receivables	1,458	(2,055)
Deferred lease costs	(6,922)	(3,602)
Other assets	(2,651)	15,550
Accounts payable, accrued expenses, other liabilities and security deposits	19,767	(60,592)
Deferred revenue	(2,672)	888
Lease liability - operating leases	1,291	(31,232)
Net cash provided by operating activities	182,435	103,264
Investing Activities
Acquisitions of real estate property	0	(28,688)
Additions to land, buildings and improvements	(126,957)	(118,076)
Investments in unconsolidated joint ventures	(135,365)	(38,198)
Distributions in excess of cumulative earnings from unconsolidated joint ventures	64,976	417,457
Net proceeds from disposition of real estate/joint venture interest	353,853	398,173
Cash assumed from consolidation of real estate investment	0	9,475
Proceeds from sale or redemption of marketable securities	0	4,528
Purchases of marketable securities	0	(10,000)
Other investments	1,507	(4,108)
Origination of debt and preferred equity investments	(29,095)	(74,148)
Repayments or redemption of debt and preferred equity investments	6,405	85,106
Net cash provided by investing activities	135,324	641,521
Financing Activities
Proceeds from mortgages and other loans payable	184,196	19,772
Repayments of mortgages and other loans payable	(91,770)	(364,994)
Proceeds from revolving credit facility and unsecured notes	332,000	570,000
Repayments of revolving credit facility and unsecured notes	(592,000)	(680,000)
Proceeds from stock options exercised and DRSPP issuance	199	467
Repurchase of common stock	(151,197)	(178,666)
Redemption of preferred stock	(17,968)	(3,631)
Redemption of OP units	(18,334)	(13,930)
Distributions to noncontrolling interests in other partnerships	(3,020)	(173)
Contributions from noncontrolling interests in other partnerships	51,348	305
Distributions to noncontrolling interests in the Operating Partnership	(8,572)	(8,110)
Dividends paid on common and preferred stock	(131,556)	(138,373)
Other obligations related to secured borrowing	77,874	0
Tax withholdings related to restricted share awards	(3,891)	(2,842)
Deferred loan costs	(4,991)	(470)
Principal payments of on financing lease liabilities	0	(434)
Net cash used in financing activities	(377,682)	(801,079)
Net decrease in cash, cash equivalents, and restricted cash	(59,923)	(56,294)
Cash, cash equivalents, and restricted cash at beginning of year	336,984	372,795
Cash, cash equivalents, and restricted cash at end of period	277,061	316,501
Supplemental Disclosure of Non-Cash Investing and Financing Activities:
Redemption of units in the Operating Partnership for a joint venture sale	0	27,586
Issuance of special dividend paid primarily in stock	160,620	123,529
Tenant improvements and capital expenditures payable	10,295	8,911
Fair value adjustment to noncontrolling interest in the Operating Partnership	5,085	32,475
Consolidation of real estate investment	0	119,444
Extinguishment of debt in connection with property dispositions	0	53,548
Debt and preferred equity investments	0	5,184
Removal of fully depreciated commercial real estate properties	3,597	4,288
Share repurchase payable	0	20,221
Recognition of right of use assets and related lease liabilities	0	119,711
Cash and cash equivalents	189,360	218,337
Restricted cash	87,701	98,164
Total cash, cash equivalents, and restricted cash	$ 277,061	$ 316,501