Organization (Details) $ in Millions	12 Months Ended
	Dec. 31, 2022 USD ($) investment apartment building community shares	Dec. 31, 2021 USD ($) shares
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items]
Limited partner - ownership percentage	3.40%	3.40%
Operating Partnership units outstanding (in shares) | shares	2,272,496	2,282,464
Redemption value of operating partnership units outstanding | $	$ 481.6	$ 804.0
Number of apartment communities owned | community	252
Number of apartment units owned | apartment	62,147
Ownership interests, number of commercial buildings | building	3
Ownership Interests, number of unconsolidated projects | investment	1
Operating Partnership
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items]
General partner ownership interest	96.60%	96.60%