CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019
CASH FLOWS FROM OPERATING ACTIVITIES
Net income	$ 278,356	$ 307,925
Adjustments to net income:
Depreciation and amortization	501,997	437,367
Amortization of share-based compensation	13,420	10,478
Non-cash revenue adjustments	(5,544)	(6,508)
Loss on extinguishment of debt	9,819	0
Amortization of net premiums on mortgages payable	(1,020)	(1,061)
Amortization of deferred financing costs	6,888	6,378
Loss on interest rate swaps	3,115	2,058
Foreign currency and derivative gains, net	(1,274)	(463)
Gain on sales of real estate	(53,565)	(15,828)
Provisions for impairment on real estate	123,442	31,236
Change in assets and liabilities
Accounts receivable and other assets	(59,747)	(7,886)
Accounts payable, accrued expenses and other liabilities	(6,082)	14,010
Net cash provided by operating activities	809,805	777,706
CASH FLOWS FROM INVESTING ACTIVITIES
Investment in real estate	(1,286,289)	(2,019,666)
Improvements to real estate, including leasing costs	(10,336)	(15,834)
Proceeds from sales of real estate	181,925	72,601
Insurance and other proceeds received	2,874	0
Non-refundable escrow deposits	0	(7,173)
Net cash used in investing activities	(1,111,826)	(1,970,072)
CASH FLOWS FROM FINANCING ACTIVITIES
Cash distributions to common stockholders	(716,535)	(629,658)
Borrowings on line of credit and commercial paper program	3,141,828	1,619,282
Payments on line of credit and commercial paper program	(3,002,717)	(1,871,282)
Principal payment on term loan	(250,000)	(70,000)
Proceeds from notes and bonds payable issued	972,766	895,774
Principal payment on notes payable	(250,000)	0
Principal payments on mortgages payable	(73,711)	(19,495)
Payments upon extinguishment of debt	(9,445)	0
Proceeds from common stock offerings, net	728,883	845,061
Proceeds from dividend reinvestment and stock purchase plan	6,922	6,259
Proceeds from At-the-Market (ATM) program, net	442,157	689,641
Redemption of common units	0	(21,123)
Distributions to noncontrolling interests	(1,195)	(1,027)
Net receipts on derivative settlements	3,462	0
Debt issuance costs	(8,870)	(7,996)
Other items, including shares withheld upon vesting	(14,783)	(4,245)
Net cash provided by financing activities	968,762	1,431,191
Effect of exchange rate changes on cash and cash equivalents	1,265	(607)
Net increase in cash, cash equivalents and restricted cash	668,006	238,218
Cash, cash equivalents and restricted cash, beginning of period	71,005	21,071
Cash, cash equivalents and restricted cash, end of period	$ 739,011	$ 259,289