CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
CASH FLOWS FROM OPERATING ACTIVITIES
Net income	$ 360,747	$ 396,506	$ 437,478
Adjustments to net income:
Depreciation and amortization	897,835	677,038	593,961
Loss on extinguishment of debt	97,178	9,819	0
Amortization of share-based compensation	41,773	16,503	13,662
Non-cash revenue and expense adjustments	(23,380)	(3,562)	(9,338)
Amortization of deferred financing costs	12,333	11,003	9,795
Loss on interest rate swaps	2,905	4,353	2,752
Foreign currency and derivative gains, net	(710)	(4,585)	(2,255)
Gain on sales of real estate	(55,798)	(76,232)	(29,996)
Equity income of unconsolidated entities	(1,106)	0	0
Distributions from unconsolidated entities	365	0	0
Provisions for impairment on real estate	38,967	147,232	40,186
Change in assets and liabilities
Accounts receivable and other assets	(38,292)	(79,240)	(8,954)
Accounts payable, accrued expenses and other liabilities	3,219	19,720	24,056
Net cash provided by operating activities	1,322,189	1,115,543	1,068,937
CASH FLOWS FROM INVESTING ACTIVITIES
Investment in real estate	(6,313,076)	(2,283,130)	(3,572,581)
Improvements to real estate, including leasing costs	(19,080)	(8,708)	(23,536)
Proceeds from sales of real estate	250,536	259,459	108,911
Non-refundable escrow deposits	(28,390)	0	(14,603)
Return of investment from unconsolidated entities	38,345	0	0
Net cash paid in merger	(366,030)	0	0
Net cash used in investing activities	(6,437,695)	(2,032,379)	(3,501,809)
CASH FLOWS FROM FINANCING ACTIVITIES
Cash distributions to common stockholders	(1,169,026)	(964,167)	(852,134)
Borrowings on line of credit and commercial paper program	9,082,206	3,528,042	2,816,632
Payments on line of credit and commercial paper program	(7,508,332)	(4,246,755)	(2,365,368)
Principal payment on term loan	0	(250,000)	(70,000)
Proceeds from notes and bonds payable issued	1,033,387	2,200,488	897,664
Principal payment on notes payable	(1,700,000)	(250,000)	0
Payments upon extinguishment of debt	(96,583)	(9,445)	0
Principal payments on mortgages payable	(66,575)	(108,789)	(20,723)
Proceeds from common stock offerings, net	1,263,235	728,883	845,061
Proceeds from dividend reinvestment and stock purchase plan	11,232	9,109	8,437
Proceeds from At-the-Market (ATM) program	3,179,490	1,094,938	1,264,518
Net cash received from Orion Divestiture	593,484	0	0
Redemption of common units	0	0	(21,123)
Distributions to noncontrolling interests	(1,707)	(1,596)	(1,342)
Net receipts on derivative settlements	3,266	4,106	4,881
Debt issuance costs	(13,405)	(19,456)	(9,129)
Other items, including shares withheld upon vesting	(33,552)	(23,279)	(4,772)
Net cash provided by financing activities	4,577,120	1,692,079	2,492,602
Effect of exchange rate changes on cash and cash equivalents	20,076	4,431	(9,796)
Net (decrease) increase in cash, cash equivalents and restricted cash	(518,310)	779,674	49,934
Cash, cash equivalents and restricted cash, beginning of year	850,679	71,005	21,071
Cash, cash equivalents and restricted cash, end of year	332,369	850,679	71,005
Mortgages payable
Adjustments to net income:
Amortization of net premiums on mortgages and notes payable	(3,498)	(1,258)	(1,415)
CASH FLOWS FROM FINANCING ACTIVITIES
Principal payments on mortgages payable	(66,600)	(108,800)
Notes payable
Adjustments to net income:
Amortization of net premiums on mortgages and notes payable	$ (10,349)	$ (1,754)	$ (995)