Commitments and Contingencies - DownREIT LLCs (Details)	Dec. 31, 2023 property
Lab JV \| Lab
Loss Contingencies [Line Items]
Investment ownership percentage	49.00%
Indemnification Agreement
Loss Contingencies [Line Items]
Number of properties may be contributed in the agreement	29

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.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 460
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 3
-Publisher FASB
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Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 450
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-URI https://asc.fasb.org//1943274/2147483076/450-20-50-1

Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 450
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Reference 4: http://www.xbrl.org/2003/role/disclosureRef
-Topic 450
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-URI https://asc.fasb.org//1943274/2147483076/450-20-50-4

Reference 5: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 450
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Reference 6: http://www.xbrl.org/2003/role/disclosureRef
-Topic 450
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-URI https://asc.fasb.org//1943274/2147483076/450-20-50-9

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