Commitments and Contingencies (Details) - USD ($) $ in Millions	Apr. 01, 2024	Sep. 30, 2024
downREIT OP units
Commitments [Line Items]
downREIT operating partnership units, outstanding		622,399
downREIT operating partnership units outstanding, fair value		$ 71.6
CocoWalk
Commitments [Line Items]
Noncontrolling interest purchased	10.00%
Payment to acquire noncontrolling interests	$ 12.4
Our ownership interest subsequent to acquisition	100.00%

Noncontrolling interest in partnership

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- Definition

Fair value of operating partnership units at the balance sheet date.

+ References

No definition available.

+ Details

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- Definition

Ownership interest subsequent to acquisition

+ References

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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.

+ References

No definition available.

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- Definition

The number of each class of partnership units outstanding at the balance sheet date. Units represent shares of ownership of the general, limited, and preferred partners.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 505
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 5
-Subparagraph (SAB Topic 4.F)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480008/505-10-S99-5

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- Definition

Amount of cash outflow to a noncontrolling interest. Includes, but not limited to, reduction of noncontrolling interest ownership. Excludes dividends paid to the noncontrolling interest.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 15
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482740/230-10-45-15

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