Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022
Cash flows from operating activities:
Net income	$ 289,231	$ 330,137
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	277,934	268,389
Gain on sale of depreciable real estate assets	(14)	(131,964)
Gain on sale of non-depreciable real estate assets	(54)	(378)
(Gain) loss on embedded derivative in preferred shares	(9,387)	9,939
Stock compensation expense	8,753	10,740
Amortization of debt issuance costs, discounts and premiums	3,036	3,018
(Gain) loss on investments	(7,292)	31,093
Net change in operating accounts and other operating activities	(8,124)	(57,067)
Net cash provided by operating activities	554,083	463,907
Cash flows from investing activities:
Purchases of real estate and other assets	(12,450)	(17,238)
Capital improvements and other	(174,343)	(132,849)
Development costs	(104,118)	(84,636)
Distributions from real estate joint venture	0	352
Contributions to affiliates	(5,630)	(9,300)
Proceeds from real estate asset dispositions	3,024	165,201
Net proceeds from insurance recoveries	696	20,675
Net cash used in investing activities	(292,821)	(57,795)
Cash flows from financing activities:
Net payments of commercial paper	(20,000)	0
Principal payments on notes payable	(730)	(691)
Distributions to noncontrolling interests	(8,848)	(6,965)
Distributions paid on common shares	(325,006)	(250,960)
Distributions paid on preferred shares	(1,844)	(1,844)
Proceeds from issuances of common units	204,391	439
Acquisition of noncontrolling interests	0	(43,070)
Net change in other financing activities	(6,571)	(11,917)
Net cash used in financing activities	(158,608)	(315,008)
Net increase in cash, cash equivalents and restricted cash	102,654	91,104
Cash, cash equivalents and restricted cash, beginning of period	61,071	130,598
Cash, cash equivalents and restricted cash, end of period	163,725	221,702
Reconciliation of cash, cash equivalents and restricted cash at period end:
Cash and cash equivalents	150,155	60,568
Restricted cash	13,570	161,134
Total cash, cash equivalents and restricted cash	163,725	221,702
Supplemental disclosure of cash flow information:
Interest paid	76,302	79,201
Income taxes paid	3,321	2,635
Supplemental disclosure of noncash investing and financing activities:
Dividends and distributions declared and accrued	167,764	148,302
Accrued construction in progress	39,144	31,803
Interest capitalized	5,883	3,893
Conversion of OP Units to shares of common stock	531	193
Limited Partnership [Member]
Cash flows from operating activities:
Net income	289,231	330,137
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	277,934	268,389
Gain on sale of depreciable real estate assets	(14)	(131,964)
Gain on sale of non-depreciable real estate assets	(54)	(378)
(Gain) loss on embedded derivative in preferred shares	(9,387)	9,939
Stock compensation expense	8,753	10,740
Amortization of debt issuance costs, discounts and premiums	3,036	3,018
(Gain) loss on investments	(7,292)	31,093
Net change in operating accounts and other operating activities	(8,124)	(57,067)
Net cash provided by operating activities	554,083	463,907
Cash flows from investing activities:
Purchases of real estate and other assets	(12,450)	(17,238)
Capital improvements and other	(174,343)	(132,849)
Development costs	(104,118)	(84,636)
Distributions from real estate joint venture	0	352
Contributions to affiliates	(5,630)	(9,300)
Proceeds from real estate asset dispositions	3,024	165,201
Net proceeds from insurance recoveries	696	20,675
Net cash used in investing activities	(292,821)	(57,795)
Cash flows from financing activities:
Net payments of commercial paper	(20,000)	0
Principal payments on notes payable	(730)	(691)
Distributions paid on common shares	(333,854)	(257,925)
Distributions paid on preferred shares	(1,844)	(1,844)
Proceeds from issuances of common units	204,391	439
Acquisition of noncontrolling interests	0	(43,070)
Net change in other financing activities	(6,571)	(11,917)
Net cash used in financing activities	(158,608)	(315,008)
Net increase in cash, cash equivalents and restricted cash	102,654	91,104
Cash, cash equivalents and restricted cash, beginning of period	61,071	130,598
Cash, cash equivalents and restricted cash, end of period	163,725	221,702
Reconciliation of cash, cash equivalents and restricted cash at period end:
Cash and cash equivalents	150,155	60,568
Restricted cash	13,570	161,134
Total cash, cash equivalents and restricted cash	163,725	221,702
Supplemental disclosure of cash flow information:
Interest paid	76,302	79,201
Income taxes paid	3,321	2,635
Supplemental disclosure of noncash investing and financing activities:
Distribution on common units declared and accrued	167,764	148,302
Accrued construction in progress	39,144	31,803
Interest capitalized	$ 531	$ 193