Significant Transactions - Narrative (Details) ft² in Thousands	1 Months Ended	3 Months Ended		6 Months Ended		12 Months Ended
	Jul. 28, 2023 USD ($) property apartment	Jun. 30, 2023 USD ($) ft² apartment property	Jun. 30, 2022 USD ($) property	Jun. 30, 2023 USD ($) ft² apartment property Segment	Jun. 30, 2022 USD ($) property	Dec. 31, 2022 USD ($)
Business Acquisition [Line Items]
Commercial space | ft²		29		29
Apartment homes in communities owned by VIEs | apartment		328		328
(Loss) gain on dispositions and impairments of real estate		$ (17,472,000)	$ 175,606,000	$ (17,472,000)	$ 587,609,000
Impairment of real estate		8,200,000
Long-term debt		3,684,577,000		3,684,577,000		$ 3,641,629,000
Secured Debt
Business Acquisition [Line Items]
Long-term debt		$ 2,197,437,000		$ 2,197,437,000		1,985,430,000
Secured Debt | Non-recourse property debt
Business Acquisition [Line Items]
Proceeds from issuance of debt						813,300,000
Secured Debt | Term Loan
Business Acquisition [Line Items]
Repayments of long-term debt						$ 325,000,000
Debt, weighted average interest rate						6.00%
Revolving Credit Facility | Line of Credit [Member]
Business Acquisition [Line Items]
Payment for borrowings						$ 292,000,000
Debt, weighted average interest rate						6.00%
Same Store
Business Acquisition [Line Items]
Apartment homes in communities owned by VIEs | apartment		22,794		22,794
Other Real Estate
Business Acquisition [Line Items]
Apartment homes in communities owned by VIEs | apartment		2,945		2,945
Impairment of real estate		$ 15,400,000
Apartment Community Dispositions
Business Acquisition [Line Items]
Apartment communities sold			4	2
Apartment homes in communities owned by VIEs | property		62	718	62	718
(Loss) gain on dispositions and impairments of real estate			$ 175,600,000
Apartment Community Dispositions, Second Disposition
Business Acquisition [Line Items]
Apartment communities sold | property					12
Apartment homes in communities owned by VIEs | property			2,050		2,050
(Loss) gain on dispositions and impairments of real estate					$ 587,600,000
Apartment Community Dispositions, Second Disposition | Same Store
Business Acquisition [Line Items]
Apartment communities sold | property					10
Apartment Community Dispositions, Second Disposition | Other Real Estate
Business Acquisition [Line Items]
Apartment communities sold | property					2
Huntington Gateway
Business Acquisition [Line Items]
Apartment homes in communities owned by VIEs | property		443		443
Equity Method Investment, Ownership Interest Sold		70.00%
Proceeds from Sale of Equity Method Investments		$ 9,000,000
Equity Method Investment, Joint Venture Assumption Of Debt		94,100,000
Gain on disposal		$ 6,400,000
Partner ownership, percentage		30.00%		30.00%
Cash flow from operations		50.00%		50.00%
Global Institutional Investor Joint Venture | Subsequent Event
Business Acquisition [Line Items]
Portfolio sold	47.00%
Number of properties in portfolio | property	10
Number of apartments | apartment	3,093
Average monthly rent income	$ 2,534
Number of portfolio properties closed | property	8
Number of portfolio properties subject to regulatory approvals | property	2
South Florida
Business Acquisition [Line Items]
Number of apartment communities acquired | property				1
Number of apartment homes purchased | apartment				495