Basis of Presentation and Organization (Details)	Sep. 30, 2025 stateAndDistrict geographicConcerntraion property apartment shares
Real Estate Properties [Line Items]
Number of geographic concentrations | geographicConcerntraion	8
Number of states and district | stateAndDistrict	9
AIR Operating Partnership
Real Estate Properties [Line Items]
Common operating partnership units and equivalents outstanding (in shares) | shares	153,602,874
Partially Owned Properties
Real Estate Properties [Line Items]
Apartment communities owned by VIEs | property	72
Number of Units in Real Estate Property | apartment	26,420
Percentage of average ownership of portfolio	81.00%