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Equity, Capital and Other Interests - Issued and Outstanding Preferred Shares and Preference Units (Details) - EQR and ERPOP [Member] - USD ($) $ / shares in Units, $ in Thousands | 12 Months Ended |
--- | --- | ---
Dec. 31, 2023 | Dec. 31, 2022
Class Of Stock [Line Items] |  |
8.29% Series K Cumulative Redeemable Preferred Shares/Preference Units; liquidation value $50 per share/unit; 745,600 shares/units issued and outstanding as of December 31, 2023 and 2022 | $ 37,280 | $ 37,280
Preferred Stock |  |
Class Of Stock [Line Items] |  |
Preferred Stocks Preference Units Call Date | Dec. 10, 2026 |
Annual Dividend Per Preferred Share Preference Unit | $ 4.145 |
8.29% Series K Cumulative Redeemable Preferred Shares/Preference Units; liquidation value $50 per share/unit; 745,600 shares/units issued and outstanding as of December 31, 2023 and 2022 | $ 37,280 | $ 37,280

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