Segment Reporting - Reconciliation of NOI to Net Income (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Segment Reporting Information [Line Items]
Other Operating Expense Adjustments		$ 3,133		$ 9,429
Reconciliation of NOI to net income
Net income	$ 372,519	171,790	$ 800,083	686,372
Property management and other indirect operating expenses, net of corporate income	40,149	33,554	112,906	99,606
Expensed transaction, development and other pursuit costs, net of recoveries	1,573	18,959	7,235	23,212
Interest expense, net	55,769	48,115	167,613	156,521
Loss on extinguishment of debt, net	0	150	0	150
General and administrative expense	20,089	20,466	60,006	58,542
Income from unconsolidated investments	(30,720)	(1,930)	(46,389)	(11,745)
Depreciation expense	212,122	200,982	631,314	606,271
Income tax expense	782	4,372	698	7,715
Casualty and impairment loss	0	3,499	2,935	8,550
Gain on sale of communities	(172,973)	(22,121)	(241,459)	(209,430)
Other real estate activity	(314)	(237)	(636)	(707)
Net operating income from real estate assets sold or held for sale	(2,036)	(10,537)	(18,501)	(39,005)
Net operating income	$ 496,960	$ 467,062	$ 1,475,805	$ 1,386,052
Non-Apartment Components Of Mixed-Use Communities And Other Nonresidential Operations | Operating Income (Loss) | Product Concentration Risk
Segment Reporting Information [Line Items]
Concentration risk (as a percent)	1.60%	1.70%	1.70%	1.80%