Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023
Cash flows from operating activities:
Net income	$ 252,272	$ 289,231
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	288,435	277,934
Loss (gain) on sale of depreciable real estate assets	25	(14)
Gain on sale of non-depreciable real estate assets	0	(54)
Gain on embedded derivative in preferred shares	(3,806)	(9,387)
Stock compensation expense	9,273	8,753
Amortization of debt issuance costs, discounts and premiums	3,055	3,036
Gain on investments	(4,314)	(7,292)
Net change in operating accounts and other operating activities	4,687	(8,124)
Net cash provided by operating activities	549,627	554,083
Cash flows from investing activities:
Purchases of real estate and other assets	(91,846)	(12,450)
Capital improvements and other	(141,775)	(174,343)
Development costs	(111,108)	(104,118)
Distributions from real estate joint venture	224	0
Contributions to affiliates	(1,124)	(5,630)
Proceeds from sale of marketable equity securities	6,729	0
Proceeds from real estate asset dispositions	0	3,024
Net proceeds from insurance recoveries	9,072	696
Net cash used in investing activities	(329,828)	(292,821)
Cash flows from financing activities:
Net payments of commercial paper	(179,000)	(20,000)
Proceeds from notes payable	744,551	0
Principal payments on notes payable	(400,000)	(730)
Payment of deferred financing costs	(7,150)	0
Distributions to noncontrolling interests	(9,191)	(8,848)
Dividends paid on common shares	(343,304)	(325,006)
Dividends paid on preferred shares	(1,844)	(1,844)
Proceeds from issuances of common shares	616	204,391
Net change in other financing activities	(3,068)	(6,571)
Net cash used in financing activities	(198,390)	(158,608)
Net increase in cash, cash equivalents and restricted cash	21,409	102,654
Cash, cash equivalents and restricted cash, beginning of period	55,091	61,071
Cash, cash equivalents and restricted cash, end of period	76,500	163,725
Reconciliation of cash, cash equivalents and restricted cash at period end:
Cash and cash equivalents	62,831	150,155
Restricted cash	13,669	13,570
Total cash, cash equivalents and restricted cash	76,500	163,725
Supplemental disclosure of cash flow information:
Interest paid	74,766	76,302
Income taxes paid	3,181	3,321
Supplemental disclosure of noncash investing and financing activities:
Distribution on common units declared and accrued	176,329	167,764
Accrued construction in progress	35,993	39,144
Interest capitalized	7,140	5,883
Conversion of OP Units to shares of common stock	2,603	531
Limited Partnership [Member]
Cash flows from operating activities:
Net income	252,272	289,231
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	288,435	277,934
Loss (gain) on sale of depreciable real estate assets	25	(14)
Gain on sale of non-depreciable real estate assets	0	(54)
Gain on embedded derivative in preferred shares	(3,806)	(9,387)
Stock compensation expense	9,273	8,753
Amortization of debt issuance costs, discounts and premiums	3,055	3,036
Gain on investments	(4,314)	(7,292)
Net change in operating accounts and other operating activities	4,687	(8,124)
Net cash provided by operating activities	549,627	554,083
Cash flows from investing activities:
Purchases of real estate and other assets	(91,846)	(12,450)
Capital improvements and other	(141,775)	(174,343)
Development costs	(111,108)	(104,118)
Distributions from real estate joint venture	224	0
Contributions to affiliates	(1,124)	(5,630)
Proceeds from sale of marketable equity securities	6,729	0
Proceeds from real estate asset dispositions	0	3,024
Net proceeds from insurance recoveries	9,072	696
Net cash used in investing activities	(329,828)	(292,821)
Cash flows from financing activities:
Net payments of commercial paper	(179,000)	(20,000)
Proceeds from notes payable	744,551	0
Principal payments on notes payable	(400,000)	(730)
Payment of deferred financing costs	(7,150)	0
Dividends paid on common shares	(352,495)	(333,854)
Dividends paid on preferred shares	(1,844)	(1,844)
Proceeds from issuances of common shares	616	204,391
Net change in other financing activities	(3,068)	(6,571)
Net cash used in financing activities	(198,390)	(158,608)
Net increase in cash, cash equivalents and restricted cash	21,409	102,654
Cash, cash equivalents and restricted cash, beginning of period	55,091	61,071
Cash, cash equivalents and restricted cash, end of period	76,500	163,725
Reconciliation of cash, cash equivalents and restricted cash at period end:
Cash and cash equivalents	62,831	150,155
Restricted cash	13,669	13,570
Total cash, cash equivalents and restricted cash	76,500	163,725
Supplemental disclosure of cash flow information:
Interest paid	74,766	76,302
Income taxes paid	3,181	3,321
Supplemental disclosure of noncash investing and financing activities:
Distribution on common units declared and accrued	176,329	167,764
Accrued construction in progress	35,993	39,144
Interest capitalized	$ 7,140	$ 5,883