Debt - Mortgage Notes Payable - Additional Information (Details) - USD ($) $ in Thousands	Sep. 30, 2025	Dec. 31, 2024
Debt Instrument [Line Items]
Mortgage notes payable, net	$ 1,592,935	$ 1,630,690
Credit Enhanced Debt [Member]
Debt Instrument [Line Items]
Mortgage notes payable, net	$ 199,900

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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+ Details

EQUITY RESIDENTIAL 10-Q