CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020
CASH FLOWS FROM OPERATING ACTIVITIES:
Net income	$ 835,736	$ 699,517
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation	616,032	619,003
Amortization of deferred financing costs	6,172	6,253
Amortization of above/below market lease intangibles	(154)	(53)
Amortization of discounts and premiums on debt	3,934	3,834
Amortization of deferred settlements on derivative instruments	6,991	17,266
Amortization of right-of-use assets	10,286	8,785
Write-off of pursuit costs	3,557	4,864
(Income) loss from investments in unconsolidated entities	3,028	2,445
Distributions from unconsolidated entities – return on capital		100
Net (gain) loss on sales of real estate properties	(587,623)	(352,218)
Net (gain) loss on sales of land parcels	(5)
Realized/unrealized (gain) loss on derivative instruments		50
Realized (gain) loss on sale of investment securities	(23,432)
Compensation paid with Company Common Shares	21,919	18,275
Other operating activities, net		1,805
Changes in assets and liabilities:
(Increase) decrease in other assets	16,269	(30,197)
Increase (decrease) in accounts payable and accrued expenses	69,170	54,418
Increase (decrease) in accrued interest payable	(9,119)	(1,183)
Increase (decrease) in lease liabilities	(4,112)	(1,650)
Increase (decrease) in other liabilities	5,427	(8,381)
Increase (decrease) in security deposits	4,137	(8,609)
Net cash provided by operating activities	978,213	1,034,324
CASH FLOWS FROM INVESTING ACTIVITIES:
Investment in real estate – acquisitions	(1,022,275)	(48,898)
Investment in real estate – development/other	(172,850)	(157,778)
Capital expenditures to real estate	(107,706)	(92,123)
Non-real estate capital additions	(1,251)	(19,290)
Interest capitalized for real estate and unconsolidated entities under development	(12,365)	(6,880)
Proceeds from disposition of real estate, net	1,014,328	747,600
Investments in unconsolidated entities	(31,081)	(6,664)
Distributions from unconsolidated entities – return of capital	4	1,000
Purchase of investment securities and other investments	(167,791)	(509)
Proceeds from sale of investment securities	191,398
Net cash provided by (used for) investing activities	(309,589)	416,458
CASH FLOWS FROM FINANCING ACTIVITIES:
Debt financing costs	(6,447)	(2,923)
Mortgage notes payable, net:
Proceeds	51,298	505,375
Lump sum payoffs	(59,880)	(127,767)
Scheduled principal repayments	(5,570)	(5,821)
Proceeds	497,470
Line of credit and commercial paper:
Line of credit proceeds		1,870,000
Line of credit repayments		(1,890,000)
Commercial paper proceeds	4,305,170	6,726,167
Commercial paper repayments	(4,690,000)	(7,724,000)
Proceeds from (payments on) settlement of derivative instruments		(1,240)
Finance ground lease principal payments	(349)
Proceeds from Employee Share Purchase Plan (ESPP)	3,455	3,556
Proceeds from exercise of options	68,807	11,426
Payment of offering costs	(267)
Other financing activities, net	(31)	(31)
Contributions – Noncontrolling Interests – Partially Owned Properties		417
Contributions – Noncontrolling Interests – Operating Partnership		12
Distributions:
Common Shares	(674,531)	(659,668)
Preferred Shares	(2,318)	(2,318)
Noncontrolling Interests – Operating Partnership	(23,949)	(24,440)
Noncontrolling Interests – Partially Owned Properties	(4,461)	(11,312)
Net cash provided by (used for) financing activities	(541,603)	(1,332,567)
Net increase (decrease) in cash and cash equivalents and restricted deposits	127,021	118,215
Cash and cash equivalents and restricted deposits, beginning of period	99,728	116,999
Cash and cash equivalents and restricted deposits, end of period	226,749	235,214
Cash and cash equivalents	39,707	178,333
Restricted deposits	187,042	56,881
SUPPLEMENTAL INFORMATION:
Cash paid for interest, net of amounts capitalized	199,799	223,703
Net cash paid (received) for income and other taxes	1,040	(1,092)
Amortization of deferred financing costs:
Investment in real estate, net	(227)	(180)
Other assets	1,754	1,755
Mortgage notes payable, net	1,702	1,337
Notes, net	2,943	3,341
Amortization of discounts and premiums on debt:
Mortgage notes payable, net	2,069	1,791
Notes, net	1,865	2,043
Amortization of deferred settlements on derivative instruments:
Other liabilities	(9)	(9)
Accumulated other comprehensive income	7,000	17,275
Write-off of pursuit costs:
Investment in real estate, net	3,000	4,621
Other assets	533	219
Accounts payable and accrued expenses	24	24
(Income) loss from investments in unconsolidated entities:
Investments in unconsolidated entities	2,062	1,474
Other liabilities	966	971
Realized/unrealized (gain) loss on derivative instruments:
Other liabilities		1,240
Accumulated other comprehensive income		(1,190)
Interest capitalized for real estate and unconsolidated entities under development:
Investment in real estate, net	(12,260)	(6,880)
Investments in unconsolidated entities	(105)
Investments in unconsolidated entities:
Investment in real estate, net	967
Investments in unconsolidated entities	(30,038)	(5,164)
Other liabilities	(2,010)	(1,500)
Debt financing costs:
Other assets	228	(231)
Mortgage notes payable, net	(2,344)	$ (2,692)
Notes, net	(4,331)
Right-of-use assets and lease liabilities initial measurement and reclassifications:
Right-of-use assets	11,308
Lease liabilities	(11,308)
Non-cash share distribution from unconsolidated entities:
Investments in unconsolidated entities	1,430
Other assets	$ (1,430)