Segment Reporting - Reconciliation of NOI to Net Income (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Segment Reporting Information [Line Items]
Other Operating Expense Adjustments		$ 3,143		$ 6,295
Reconciliation of NOI to net income
Net income	$ 254,007	367,807	$ 427,564	514,582
Property management and other indirect operating expenses, net of corporate income	37,553	32,115	72,757	66,051
Expensed transaction, development and other pursuit costs, net of recoveries	1,417	1,261	5,662	4,253
Interest expense, net	57,078	51,585	111,844	108,406
General and administrative expense	19,586	17,676	39,917	38,076
Income from unconsolidated investments	(4,822)	(4,970)	(15,669)	(9,815)
Depreciation expense	206,923	200,546	419,192	405,289
Income tax (benefit) expense	(62)	(217)	(84)	3,343
Casualty and impairment loss	0	0	2,935	5,051
Gains (Losses) on Sales of Investment Real Estate	(68,556)	(187,322)	(68,486)	(187,309)
Other real estate activity	(181)	(341)	(322)	(470)
Net operating income from real estate assets sold or held for sale	(6,511)	(12,467)	(13,571)	(25,755)
Net operating income	$ 496,432	$ 465,673	$ 981,739	$ 921,702
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)	1.80%	1.80%	1.70%	1.80%