Significant Transactions During the Six Months Ended June 30, 2025 and Subsequent Events - Acquisition of Real Estate Interests (Details) - Apartment Building $ in Millions	3 Months Ended
	Jun. 30, 2025 USD ($) apartment
Other Commitments [Line Items]
Apartment Homes | apartment	1,039
Contract Price at Pro Rata Share | $	$ 586.0
The Plaza
Other Commitments [Line Items]
Apartment Homes | apartment	307
Contract Price at Pro Rata Share | $	$ 161.4
One Hundred Grand
Other Commitments [Line Items]
Apartment Homes | apartment	166
Contract Price at Pro Rata Share | $	$ 105.3
ROEN Menlo Park
Other Commitments [Line Items]
Apartment Homes | apartment	146
Contract Price at Pro Rata Share | $	$ 78.8
Revere Campbell
Other Commitments [Line Items]
Apartment Homes | apartment	168
Contract Price at Pro Rata Share | $	$ 118.0
The Parc at Pruneyard
Other Commitments [Line Items]
Apartment Homes | apartment	252
Contract Price at Pro Rata Share | $	$ 122.5