CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020
CASH FLOWS FROM OPERATING ACTIVITIES
Net income	$ 356,280	$ 278,356
Adjustments to net income:
Depreciation and amortization	564,606	501,997
Amortization of share-based compensation	12,484	13,420
Non-cash revenue adjustments	(12,722)	(5,544)
Loss on extinguishment of debt	50,456	9,819
Amortization of net premiums on mortgages payable	(1,158)	(1,020)
Amortization of deferred financing costs	8,612	6,888
Loss on interest rate swaps	2,179	3,115
Foreign currency and derivative (gains) losses, net	1,170	(1,274)
Gain on sales of real estate	(35,396)	(53,565)
Provisions for impairment on real estate	30,977	123,442
Change in assets and liabilities
Accounts receivable and other assets	(46,670)	(59,747)
Accounts payable, accrued expenses and other liabilities	39,248	(6,082)
Net cash provided by operating activities	970,066	809,805
CASH FLOWS FROM INVESTING ACTIVITIES
Investment in real estate	(3,709,894)	(1,286,289)
Improvements to real estate, including leasing costs	(11,159)	(10,336)
Proceeds from sales of real estate	123,533	181,925
Insurance and other proceeds received	0	2,874
Non-refundable escrow deposits	(5,432)	0
Net cash used in investing activities	(3,602,952)	(1,111,826)
CASH FLOWS FROM FINANCING ACTIVITIES
Cash distributions to common stockholders	(797,847)	(716,535)
Borrowings on line of credit and commercial paper program	6,277,918	3,141,828
Payments on line of credit and commercial paper program	(5,853,423)	(3,002,717)
Principal payment on term loan	0	(250,000)
Proceeds from notes and bonds payable issued	1,033,387	972,766
Principal payment on notes payable	(950,000)	(250,000)
Principal payments on mortgages payable	(55,983)	(73,711)
Payments upon extinguishment of debt	(51,218)	(9,445)
Proceeds from common stock offerings, net	1,263,235	728,883
Proceeds from dividend reinvestment and stock purchase plan	8,208	6,922
Proceeds from At-the-Market (ATM) program, net	1,471,595	442,157
Distributions to noncontrolling interests	(1,198)	(1,195)
Net receipts on derivative settlements	2,463	3,462
Debt issuance costs	(8,670)	(8,870)
Other items, including shares withheld upon vesting	(6,451)	(14,783)
Net cash provided by financing activities	2,332,016	968,762
Effect of exchange rate changes on cash and cash equivalents	(3,711)	1,265
Net (decrease) increase in cash, cash equivalents and restricted cash	(304,581)	668,006
Cash, cash equivalents and restricted cash, beginning of period	850,679	71,005
Cash, cash equivalents and restricted cash, end of period	$ 546,098	$ 739,011