Investment in Unconsolidated Real Estate Partnerships - Summary of Combined Balance Sheets for Joint Venture Partners (Details) - USD ($) $ in Thousands	Sep. 30, 2025	Dec. 31, 2024
Variable Interest Entity [Line Items]
Third-party debt	$ 6,269,672	$ 6,551,006
AIR Operating Partnership's investment in balance	328,381	341,357
Variable Interest Entity, Primary Beneficiary
Variable Interest Entity [Line Items]
AIR Operating Partnership's investment in balance		21,200
Variable Interest Entity, Primary Beneficiary \| Virginia JV
Variable Interest Entity [Line Items]
Third-party debt	395,000	395,000
AIR Operating Partnership's investment in balance	9,949	13,501
Variable Interest Entity, Primary Beneficiary \| Value-Add JV
Variable Interest Entity [Line Items]
Third-party debt	88,219	89,282
AIR Operating Partnership's investment in balance	29,033	30,039
Variable Interest Entity, Primary Beneficiary \| Core JV
Variable Interest Entity [Line Items]
Third-party debt	890,970	891,097
AIR Operating Partnership's investment in balance	$ 268,201	$ 276,588

Amount of liability recognized for present obligation requiring transfer or otherwise providing economic benefit to others.

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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