Reportable Segments - Consolidated Net Income (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023	Dec. 31, 2023
Segment Reporting Information
Operations revenues	$ 380,019	$ 370,014	$ 766,587	$ 739,966
Depreciation and amortization	(51,344)	(51,464)	(102,452)	(101,966)
Income before income taxes and other items	81,548	65,076	196,297	153,643
Reconciliation to consolidated net income:
Income from other investments, net	16,197	17,911	31,746	35,625
General and administrative	(8,985)	(16,607)	(20,974)	(28,268)
Casualty-related charges/(recoveries), net	6,170	0	21,013	0
Other expenses	(1,387)	(1,381)	(2,718)	(2,849)
Interest and related amortization	(36,037)	(33,122)	(69,580)	(65,710)
Income tax benefit	0	0	(239)	0
Equity in income of unconsolidated joint ventures	579	973	862	1,497
Consolidated net income	82,127	66,049	197,398	152,508
Total assets	5,645,475	5,585,987	5,645,475	5,585,987	$ 5,613,733
Capital improvements	62,525	51,901	117,231	149,002
Property Operations
Reconciliation to consolidated net income:
Total assets	5,391,752	5,304,804	5,391,752	5,304,804
Capital improvements	58,693	41,350	110,101	128,826
Home Sales and Rentals Operations
Reconciliation to consolidated net income:
Total assets	253,723	281,183	253,723	281,183
Capital improvements	3,832	10,551	7,130	20,176
Operating Segments
Segment Reporting Information
Operations revenues	374,969	365,282	757,331	731,055
Operations expenses	(206,888)	(202,364)	(395,579)	(387,530)
Income from segment operations	168,081	162,918	361,752	343,525
Interest income	2,329	2,253	4,458	4,333
Depreciation and amortization	(51,344)	(51,464)	(102,452)	(101,966)
Loss on sale of real estate and impairment, net				(2,632)
Income before income taxes and other items	119,066	113,707	263,758	243,260
Operating Segments | Property Operations
Segment Reporting Information
Operations revenues	346,987	336,629	706,723	678,366
Operations expenses	(183,051)	(177,450)	(352,456)	(342,473)
Income from segment operations	163,936	159,179	354,267	335,893
Interest income	1,759	1,616	3,445	3,182
Depreciation and amortization	(48,852)	(48,662)	(97,392)	(96,417)
Loss on sale of real estate and impairment, net				(2,632)
Income before income taxes and other items	116,843	112,133	260,320	240,026
Reconciliation to consolidated net income:
Income from other investments, net	16,197	17,911	31,746	35,625
Operating Segments | Home Sales and Rentals Operations
Segment Reporting Information
Operations revenues	27,982	28,653	50,608	52,689
Operations expenses	(23,837)	(24,914)	(43,123)	(45,057)
Income from segment operations	4,145	3,739	7,485	7,632
Interest income	570	637	1,013	1,151
Depreciation and amortization	(2,492)	(2,802)	(5,060)	(5,549)
Loss on sale of real estate and impairment, net				0
Income before income taxes and other items	2,223	1,574	3,438	3,234
Segment Reconciling Items
Reconciliation to consolidated net income:
Corporate interest income	91	6	130	14
Income from other investments, net	2,630	2,473	4,668	4,564
General and administrative	(8,985)	(16,607)	(20,974)	(28,268)
Casualty-related charges/(recoveries), net	6,170		21,013
Other expenses	(1,387)	(1,381)	(2,718)	(2,849)
Interest and related amortization	(36,037)	(33,122)	(69,580)	(65,710)
Income tax benefit			239
Equity in income of unconsolidated joint ventures	$ 579	$ 973	$ 862	$ 1,497