Segment Reporting - Reconciliation of NOI to Net Income (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Reconciliation of NOI to net income
Net income	$ 146,775	$ 262,076
Property management and other indirect operating expenses, net of corporate income	30,784	28,113
Expensed transaction, development and other pursuit costs, net of recoveries	2,992	987
Interest expense, net	56,821	56,526
General and administrative expense	20,400	17,421
Income from unconsolidated investments	(4,845)	(317)
Depreciation expense	204,743	201,786
Income tax expense	3,560	2,471
Casualty loss	5,051	0
(Loss) gain on sale of communities	13	(148,800)
Other real estate activity	(129)	(273)
Net operating income from real estate assets sold or held for sale	(1,126)	(10,277)
Net operating income	$ 465,039	$ 409,713
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)	1.90%	2.00%