Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021
Cash flow from operating activities:
Net income	$ 105,232	$ 258,543
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	254,905	147,449
Impairment charges	14,691	104
Early extinguishment of debt charges	7,230	0
Equity award expense	13,994	12,271
Gain on sale of properties	(7,137)	(28,866)
Loss/(gain) on marketable securities, net	139,703	(85,382)
Distributions from joint ventures and other investments	45,775	37,080
Change in accounts and notes receivable, net	(1,204)	19,127
Change in accounts payable and accrued expenses	(12,636)	5,587
Change in other operating assets and liabilities, net	(41,762)	(29,346)
Net cash flow provided by operating activities	442,333	293,671
Cash flow from investing activities:
Acquisition of operating real estate	(29,282)	(84,312)
Improvements to operating real estate	(78,958)	(66,342)
Investment in marketable securities	(1,870)	0
Proceeds from sale of marketable securities	201	201
Investment in cost method investment	(3,000)	0
Investments in and advances to real estate joint ventures	(72,947)	(5,698)
Reimbursements of investments in and advances to real estate joint ventures	22,865	3,368
Investments in and advances to other investments	(9,473)	(55,713)
Reimbursements of investments in and advances to other investments	29,104	32,780
Investment in other financing receivable	(53,063)	(397)
Collection of mortgage loans receivable	63	93
Proceeds from sale of properties	41,224	130,138
Net cash flow used for investing activities	(155,136)	(45,882)
Cash flow from financing activities:
Principal payments on debt, excluding normal amortization of rental property debt	(115,166)	(136,222)
Principal payments on rental property debt	(4,827)	(5,011)
Proceeds from mortgage loan financings	19,000	0
Financing origination costs	(10,281)	0
Payment of early extinguishment of debt charges	(6,527)	0
Contributions from noncontrolling interests	891	0
Redemption/distribution of noncontrolling interests	(7,029)	(3,225)
Dividends paid	(253,809)	(160,092)
Proceeds from issuance of stock, net	14,838	1,970
Repurchase of preferred stock	(3,441)	0
Shares repurchased for employee tax withholding on equity awards	(13,521)	(9,225)
Change in tenants' security deposits	1,873	890
Net cash flow used for financing activities	(325,062)	(310,915)
Net change in cash, cash equivalents and restricted cash	(37,865)	(63,126)
Cash, cash equivalents and restricted cash, beginning of the period	334,663	293,188
Cash, cash equivalents and restricted cash, end of the period	296,798	230,062
Interest paid during the period including payment of early extinguishment of debt charges of $6,527 and $0, respectively (net of capitalized interest of $277 and $417, respectively)	132,912	96,097
Senior Unsecured Notes [Member]
Cash flow from financing activities:
Proceeds from issuance of unsecured debt	600,000	0
Repayments of unsecured notes	(547,063)	0
Joint Ventures [Member]
Adjustments to reconcile net income to net cash provided by operating activities:
Equity in income, net	(67,700)	(34,070)
Other Real Estate Investments [Member]
Adjustments to reconcile net income to net cash provided by operating activities:
Equity in income, net	$ (8,758)	$ (8,826)