Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Cash flows from operating activities:
Net income	$ 139,574	$ 113,577
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	138,758	133,986
(Gain) loss on sale of depreciable real estate assets	(15)	1
Gain on sale of non-depreciable real estate assets	(54)	(23)
Gain on embedded derivative in preferred shares	(4,435)	(11,896)
Stock compensation expense	5,578	6,640
Amortization of debt issuance costs, discounts and premiums	1,517	1,510
Loss on investments	1,024	10,233
Net change in operating accounts and other operating activities	(63,637)	(74,405)
Net cash provided by operating activities	218,310	179,623
Cash flows from investing activities:
Purchases of real estate and other assets	(12,450)	(5,232)
Capital improvements and other	(75,622)	(38,212)
Development costs	(52,851)	(42,780)
Distributions from real estate joint venture	0	95
Contributions to affiliates	(1,250)	(7,500)
Proceeds from real estate asset dispositions	3,024	24
Net proceeds from insurance recoveries	764	10,073
Net cash used in investing activities	(138,385)	(83,532)
Cash flows from financing activities:
Net (payments of) proceeds from commercial paper	(20,000)	20,000
Principal payments on notes payable	(362)	(343)
Distributions to noncontrolling interests	(4,429)	(3,484)
Distributions paid on common shares	(161,683)	(125,432)
Distributions paid on preferred shares	(922)	(922)
Proceeds from issuances of common units	204,077	164
Acquisition of noncontrolling interests	0	(43,070)
Net change in other financing activities	(1,660)	(978)
Net cash provided by (used in) financing activities	15,021	(154,065)
Net increase (decrease) in cash, cash equivalents and restricted cash	94,946	(57,974)
Cash, cash equivalents and restricted cash, beginning of period	61,071	130,598
Cash, cash equivalents and restricted cash, end of period	156,017	72,624
Reconciliation of cash, cash equivalents and restricted cash at period end:
Cash and cash equivalents	142,411	60,371
Restricted cash	13,606	12,253
Total cash, cash equivalents and restricted cash	156,017	72,624
Supplemental disclosure of cash flow information:
Interest paid	29,516	30,427
Income taxes paid	25	0
Supplemental disclosure of noncash investing and financing activities:
Conversion of OP Units to shares of common stock	479	193
Accrued construction in progress	31,492	38,191
Interest capitalized	2,746	1,836
Limited Partnership [Member]
Cash flows from operating activities:
Net income	139,574	113,577
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	138,758	133,986
(Gain) loss on sale of depreciable real estate assets	(15)	1
Gain on sale of non-depreciable real estate assets	(54)	(23)
Gain on embedded derivative in preferred shares	(4,435)	(11,896)
Stock compensation expense	5,578	6,640
Amortization of debt issuance costs, discounts and premiums	1,517	1,510
Loss on investments	1,024	(10,233)
Net change in operating accounts and other operating activities	(63,637)	(74,405)
Net cash provided by operating activities	218,310	179,623
Cash flows from investing activities:
Purchases of real estate and other assets	(12,450)	(5,232)
Capital improvements and other	(75,622)	(38,212)
Development costs	(52,851)	(42,780)
Distributions from real estate joint venture	0	95
Contributions to affiliates	(1,250)	(7,500)
Proceeds from real estate asset dispositions	3,024	24
Net proceeds from insurance recoveries	764	10,073
Net cash used in investing activities	(138,385)	(83,532)
Cash flows from financing activities:
Net (payments of) proceeds from commercial paper	(20,000)	20,000
Principal payments on notes payable	(362)	(343)
Distributions paid on common shares	(166,112)	(128,916)
Distributions paid on preferred shares	(922)	(922)
Proceeds from issuances of common units	204,077	164
Acquisition of noncontrolling interests	0	(43,070)
Net change in other financing activities	(1,660)	(978)
Net cash provided by (used in) financing activities	15,021	(154,065)
Net increase (decrease) in cash, cash equivalents and restricted cash	94,946	(57,974)
Cash, cash equivalents and restricted cash, beginning of period	61,071	130,598
Cash, cash equivalents and restricted cash, end of period	156,017	72,624
Reconciliation of cash, cash equivalents and restricted cash at period end:
Cash and cash equivalents	142,411	60,371
Restricted cash	13,606	12,253
Total cash, cash equivalents and restricted cash	156,017	72,624
Supplemental disclosure of cash flow information:
Interest paid	29,516	30,427
Supplemental disclosure of noncash investing and financing activities:
Accrued construction in progress	31,492	38,191
Interest capitalized	$ 2,746	$ 1,836