Investments in Partially Owned Entities - Summary of Information on Total Unconsolidated Development Joint Ventures (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2023 USD ($) ApartmentUnit JointVenture	Dec. 31, 2022 USD ($) ApartmentUnit JointVenture	Dec. 31, 2021 USD ($)
Variable Interest Entity [Line Items]
Investments in unconsolidated entities - acquisitions	$ 2,800	$ 49,855	$ 48,534
Variable Interest Entity, Not Primary Beneficiary [Member]
Variable Interest Entity [Line Items]
Number of unconsolidated joint ventures | JointVenture	2	3
Apartment units | ApartmentUnit	638	1,019
Variable Interest Entity, Not Primary Beneficiary [Member] | Equity Residential [Member]
Variable Interest Entity [Line Items]
Investments in unconsolidated entities - acquisitions	$ 2,800	$ 49,855