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Between 0% and 200% of the target number will be earned based on the achievement of performance criteria related to the Company's total shareholder return relative to industry indices and to certain of the Company's financial results over a three-year performance period. Any shares that do not vest at the end of the performance period will be forfeited."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F2","text":"Each performance right represents a contingent right to receive one share of common stock of Sun Communities, Inc (the \"Company\"). The target number of shares of common stock is set forth in columns 5 and 7 of Table II. Between 0% and 200% of the target number will be earned based on the achievement of performance criteria related to the Company's total shareholder return relative to industry indices and to certain of the Company's financial results over a three-year performance period. Any shares that do not vest at the end of the performance period will be forfeited."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F2","text":"Each performance right represents a contingent right to receive one share of common stock of Sun Communities, Inc (the \"Company\"). The target number of shares of common stock is set forth in columns 5 and 7 of Table II. Between 0% and 200% of the target number will be earned based on the achievement of performance criteria related to the Company's total shareholder return relative to industry indices and to certain of the Company's financial results over a three-year performance period. 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Subject to the vesting requirements of the grant and certain other restrictions, OP Units are exchangeable by the holder for common shares of the Company on a one-for-one basis or the cash value of such shares, at the Company's option.  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Subject to the vesting requirements of the grant and certain other conditions, OP Units are exchangeable by the holder for common shares of the Company on a one-for-one basis or cash value of such shares, at the Company's option.  The RUs reflected in this report also include any OP Units into which such RUs automatically convert."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F7","text":"The RUs are scheduled to vest on February 9, 2026."}],"balance_after":11471,"derivative":{"expiration_date":"2033-01-01","underlying":"Common Shares Of Beneficial Interest","underlying_shares":11471},"source":{"system":"sec-edgar","filing":"0000906107-26-000003","document":"form4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/906107/000090610726000003/form4.xml","form_type":"4"}},{"id":934692,"issuer":{"id":499,"kind":"organization","name":"VIVMARK RESIDENTIAL","symbol":"VMRK"},"owners":[{"id":66933,"kind":"person","name":"Garechana Robert","position":1,"cik":"0001750568","reported_name":"Garechana Robert","relationship":{"officer":true,"officer_title":"EVP & Chief Investment Officer"}}],"security":"Common Shares Of Beneficial Interest","published_at":"2026-01-21T21:20:55.000Z","date":"2026-01-16","kind":"grant","planned":false,"acquired":true,"shares":11020,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Represents restricted shares of Equity Residential (the \"Company\") issued in connection with the settlement of an award under the Company's 2023 Long-Term Incentive Plan which are scheduled to vest on February 9, 2026."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"Direct total includes restricted shares of Equity Residential scheduled to vest in the future."}],"balance_after":25132,"source":{"system":"sec-edgar","filing":"0000906107-26-000003","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/906107/000090610726000003/form4.xml","form_type":"4"}},{"id":1191621,"issuer":{"id":499,"kind":"organization","name":"VIVMARK RESIDENTIAL","symbol":"VMRK"},"owners":[{"id":66933,"kind":"person","name":"Garechana Robert","position":1,"cik":"0001750568","reported_name":"Garechana Robert","relationship":{"officer":true,"officer_title":"EVP & Chief Financial Officer"}}],"security":"Common Shares Of Beneficial Interest","published_at":"2025-03-26T20:10:10.000Z","date":"2025-03-17","kind":"purchase","planned":false,"acquired":true,"shares":4,"price":69.81,"value":279.24,"ownership":{"direct":true},"balance_after":14112,"source":{"system":"sec-edgar","filing":"0001127602-25-010473","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/906107/000112760225010473/form4.xml","form_type":"4"}},{"id":1279341,"issuer":{"id":499,"kind":"organization","name":"VIVMARK RESIDENTIAL","symbol":"VMRK"},"owners":[{"id":66933,"kind":"person","name":"Garechana Robert","position":1,"cik":"0001750568","reported_name":"Garechana Robert","relationship":{"officer":true,"officer_title":"EVP & Chief Financial Officer"}}],"security":"Restricted Units","published_at":"2025-02-07T21:26:36.000Z","date":"2025-02-05","kind":"grant","planned":false,"acquired":true,"shares":15891,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"security","element":"securityTitle","label":"F5","text":"On February 5, 2025, the reporting person received a grant of Series 2025B restricted limited partnership interests (\"RUs\") in ERP Operating Limited Partnership (the \"OP\"), the operating partnership of Equity Residential (the \"Company\"), in lieu of restricted shares of the Company as part of the Company's annual grant of long-term compensation."},{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F6","text":"RUs are a class of partnership interest that automatically convert into an equal number of limited partnership interests of the OP (\"OP Units\") when the capital account related to the RUs reaches a specified target for federal income tax purposes (provided such target is reached within ten years of issuance). Subject to the vesting requirements of the grant and certain other restrictions, OP Units are exchangeable by the holder for common shares of the Company on a one-for-one basis or the cash value of such shares, at the Company's option.  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Such target has been reached and these RUs have converted to OP Units.  Subject to the vesting requirements of the grant and certain other conditions, OP Units are exchangeable by the holder for common shares of the Company on a one-for-one basis or cash value of such shares, at the Company's option."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F7","text":"The RUs are scheduled to vest on February 1, 2024."}],"balance_after":9883,"derivative":{"expiration_date":"2031-01-01","underlying":"Common Shares Of Beneficial Interest","underlying_shares":9883},"source":{"system":"sec-edgar","filing":"0001127602-24-001911","document":"form4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/906107/000112760224001911/form4.xml","form_type":"4"}},{"id":1673519,"issuer":{"id":499,"kind":"organization","name":"VIVMARK RESIDENTIAL","symbol":"VMRK"},"owners":[{"id":66933,"kind":"person","name":"Garechana Robert","position":1,"cik":"0001750568","reported_name":"Garechana Robert","relationship":{"officer":true,"officer_title":"EVP & Chief Financial Officer"}}],"security":"Common Shares Of Beneficial Interest","published_at":"2024-01-23T21:24:06.000Z","date":"2024-01-19","kind":"grant","planned":false,"acquired":true,"shares":3192,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Represents restricted shares of Equity Residential (the \"Company\") issued in connection with the settlement of an award under the Company's 2021 Long-Term Incentive Plan which are scheduled to vest on February 1, 2024."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"Direct total includes restricted shares of Equity Residential scheduled to vest in the future."}],"balance_after":25001,"source":{"system":"sec-edgar","filing":"0001127602-24-001911","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/906107/000112760224001911/form4.xml","form_type":"4"}},{"id":2009148,"issuer":{"id":499,"kind":"organization","name":"VIVMARK RESIDENTIAL","symbol":"VMRK"},"owners":[{"id":66933,"kind":"person","name":"Garechana Robert","position":1,"cik":"0001750568","reported_name":"Garechana Robert","relationship":{"officer":true,"officer_title":"EVP & Chief Financial Officer"}}],"security":"Restricted Units","published_at":"2023-02-17T23:10:57.000Z","date":"2023-02-15","kind":"grant","acquired":true,"shares":16038,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"security","element":"securityTitle","label":"F2","text":"On February 15, 2023, the reporting person received a grant of Series 2023B restricted limited partnership interests (\"RUs\") in ERP Operating Limited Partnership (the \"OP\"), the operating partnership of Equity Residential (the \"Company\"), in lieu of restricted shares of the Company as part of the Company's annual grant of long-term compensation. 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The RUs reflected in this report also include any OP Units into which such RUs automatically convert."},{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F2","text":"On February 15, 2023, the reporting person received a grant of Series 2023B restricted limited partnership interests (\"RUs\") in ERP Operating Limited Partnership (the \"OP\"), the operating partnership of Equity Residential (the \"Company\"), in lieu of restricted shares of the Company as part of the Company's annual grant of long-term compensation. RUs are a class of partnership interest that automatically convert into an equal number of limited partnership interests of the OP (\"OP Units\") when the capital account related to the RUs reaches a specified target for federal income tax purposes (provided such target is reached within ten years of issuance). 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The RUs reflected in this report also include any OP Units into which such RUs automatically convert."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F3","text":"The Restricted Units are scheduled to vest on February 15, 2026."}],"balance_after":16038,"derivative":{"expiration_date":"2033-02-15","underlying":"Common Shares Of Beneficial Interest","underlying_shares":16038},"source":{"system":"sec-edgar","filing":"0001127602-23-005932","document":"form4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/906107/000112760223005932/form4.xml","form_type":"4"}},{"id":2009147,"issuer":{"id":499,"kind":"organization","name":"VIVMARK RESIDENTIAL","symbol":"VMRK"},"owners":[{"id":66933,"kind":"person","name":"Garechana Robert","position":1,"cik":"0001750568","reported_name":"Garechana Robert","relationship":{"officer":true,"officer_title":"EVP & Chief Financial Officer"}}],"security":"Non-qualified Stock Option (Right to Buy)","published_at":"2023-02-17T23:10:57.000Z","date":"2023-02-15","kind":"grant","acquired":true,"shares":26639,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"Represents share options scheduled to vest in approximately three equal installments on February 15, 2024, February 15, 2025 and February 15, 2026."}],"balance_after":26639,"derivative":{"exercise_price":66.59,"expiration_date":"2033-02-15","underlying":"Common Shares Of Beneficial Interest","underlying_shares":26639},"source":{"system":"sec-edgar","filing":"0001127602-23-005932","document":"form4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/906107/000112760223005932/form4.xml","form_type":"4"}},{"id":2012081,"issuer":{"id":499,"kind":"organization","name":"VIVMARK RESIDENTIAL","symbol":"VMRK"},"owners":[{"id":66933,"kind":"person","name":"Garechana Robert","position":1,"cik":"0001750568","reported_name":"Garechana Robert","relationship":{"officer":true,"officer_title":"EVP & Chief Financial Officer"}}],"security":"Common Shares Of Beneficial Interest","published_at":"2023-02-16T21:24:58.000Z","date":"2023-02-14","kind":"sale","acquired":false,"shares":2519,"price":66.28,"value":166959.32,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Represents the sale of shares for the payment of tax liability incurred upon the vesting of restricted shares."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"Direct total includes restricted shares of Equity Residential scheduled to vest in the future."}],"balance_after":21809,"source":{"system":"sec-edgar","filing":"0001127602-23-005536","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/906107/000112760223005536/form4.xml","form_type":"4"}},{"id":2046761,"issuer":{"id":499,"kind":"organization","name":"VIVMARK RESIDENTIAL","symbol":"VMRK"},"owners":[{"id":66933,"kind":"person","name":"Garechana Robert","position":1,"cik":"0001750568","reported_name":"Garechana Robert","relationship":{"officer":true,"officer_title":"EVP & Chief Financial Officer"}}],"security":"Restricted Units","published_at":"2023-01-25T21:29:23.000Z","date":"2023-01-23","kind":"grant","acquired":true,"shares":1172,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F5","text":"Represents restricted limited partnership interests (\"Restricted Units\") in ERP Operating Limited Partnership (the \"Operating Partnership\"), the operating partnership of Equity Residential (the \"Company\"), retained in connection with the settlement of an award under the Company's 2020 Long-Term Incentive Plan.  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Restricted Units are a class of partnership interest that automatically convert into an equal number of limited partnership interests of the Operating Partnership (\"OP Units\") when the capital account related to the Restricted Units reaches a specified target for federal income tax purposes (provided such target is reached within ten years of issuance).  Subject to the vesting requirements of the grant and certain other restrictions, OP Units are exchangeable by the holder for common shares of the Company on a one-for-one basis or the cash value of such shares, at the Company's option.  The Restricted Units reflected in this report also include any OP Units into which such Restricted Units automatically convert."},{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F6","text":"On February 3, 2022, the reporting person received a grant of Series 2022B restricted limited partnership interests (\"Restricted Units\") in ERP Operating Limited Partnership (the \"Operating Partnership\"), the operating partnership of Equity Residential (the \"Company\"), in lieu of restricted shares of the Company as part of the Company's annual grant of long-term compensation.  Restricted Units are a class of partnership interest that automatically convert into an equal number of limited partnership interests of the Operating Partnership (\"OP Units\") when the capital account related to the Restricted Units reaches a specified target for federal income tax purposes (provided such target is reached within ten years of issuance).  Subject to the vesting requirements of the grant and certain other restrictions, OP Units are exchangeable by the holder for common shares of the Company on a one-for-one basis or the cash value of such shares, at the Company's option.  The Restricted Units reflected in this report also include any OP Units into which such Restricted Units automatically convert."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F7","text":"The Restricted Units are scheduled to vest on February 3, 2025."}],"balance_after":6114,"derivative":{"expiration_date":"2032-02-03","underlying":"Common Shares Of Beneficial Interest","underlying_shares":6114},"source":{"system":"sec-edgar","filing":"0001127602-22-003564","document":"form4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":5,"url":"https://www.sec.gov/Archives/edgar/data/906107/000112760222003564/form4.xml","form_type":"4"}},{"id":2410670,"issuer":{"id":499,"kind":"organization","name":"VIVMARK RESIDENTIAL","symbol":"VMRK"},"owners":[{"id":66933,"kind":"person","name":"Garechana Robert","position":1,"cik":"0001750568","reported_name":"Garechana Robert","relationship":{"officer":true,"officer_title":"EVP & Chief Financial Officer"}}],"security":"Common Shares Of Beneficial Interest","published_at":"2022-02-07T21:43:32.000Z","date":"2022-02-04","kind":"sale","acquired":false,"shares":2770,"price":90.13,"value":249660.1,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F3","text":"Represents the sale of shares for the payment of tax liability incurred upon the vesting of restricted shares."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"Direct total includes restricted shares of Equity Residential scheduled to vest in the future."}],"balance_after":25236,"source":{"system":"sec-edgar","filing":"0001127602-22-003564","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/906107/000112760222003564/form4.xml","form_type":"4"}},{"id":2410669,"issuer":{"id":499,"kind":"organization","name":"VIVMARK RESIDENTIAL","symbol":"VMRK"},"owners":[{"id":66933,"kind":"person","name":"Garechana Robert","position":1,"cik":"0001750568","reported_name":"Garechana Robert","relationship":{"officer":true,"officer_title":"EVP & Chief Financial Officer"}}],"security":"Common Shares Of Beneficial Interest","published_at":"2022-02-07T21:43:32.000Z","date":"2022-02-03","kind":"grant","acquired":true,"shares":5882,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Represents restricted shares scheduled to vest on February 3, 2025."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"Direct total includes restricted shares of Equity Residential scheduled to vest in the future."}],"balance_after":28006,"source":{"system":"sec-edgar","filing":"0001127602-22-003564","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/906107/000112760222003564/form4.xml","form_type":"4"}},{"id":2427068,"issuer":{"id":499,"kind":"organization","name":"VIVMARK RESIDENTIAL","symbol":"VMRK"},"owners":[{"id":66933,"kind":"person","name":"Garechana Robert","position":1,"cik":"0001750568","reported_name":"Garechana Robert","relationship":{"officer":true,"officer_title":"EVP & Chief Financial Officer"}}],"security":"Restricted Units","published_at":"2022-01-25T21:32:00.000Z","date":"2022-01-21","kind":"grant","acquired":true,"shares":1697,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F4","text":"Represents restricted limited partnership interests (\"Restricted Units\") in ERP Operating Limited Partnership (the \"Operating Partnership\"), the operating partnership of Equity Residential (the \"Company\"), retained in connection with the settlement of an award under the Company's 2019 Long-Term Incentive Plan.  Restricted Units are a class of partnership interest that automatically convert into an equal number of limited partnership interests of the Operating Partnership (\"OP Units\") when the capital account related to the Restricted Units reaches a specified target for federal income tax purposes (provided such target is reached within ten years of issuance).  Such target has been reached and these Restricted Units have converted to OP Units.  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The Restricted Units reflected in this report also include any OP Units into which such Restricted Units automatically convert."},{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F6","text":"On February 12, 2021, the reporting person received a grant of Series 2021B restricted limited partnership interests (\"Restricted Units\") in ERP Operating Limited Partnership (the \"Operating Partnership\"), the operating partnership of Equity Residential (the \"Company\"), in lieu of restricted shares of the Company as part of the Company's annual grant of long-term compensation.  Restricted Units are a class of partnership interest that automatically convert into an equal number of limited partnership interests of the Operating Partnership (\"OP Units\") when the capital account related to the Restricted Units reaches a specified target for federal income tax purposes (provided such target is reached within ten years of issuance).  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The shares were sold within a range of $85.14 to $85.22.  The reporting person will provide, upon request by the SEC staff, the issuer, or any security holder of the issuer, full information regarding the number of shares sold at each separate price."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F1","text":"Direct total includes restricted shares of Equity Residential scheduled to vest in the future."}],"balance_after":20630,"source":{"system":"sec-edgar","filing":"0001127602-20-006032","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":6,"url":"https://www.sec.gov/Archives/edgar/data/906107/000112760220006032/form4.xml","form_type":"4"}},{"id":3268006,"issuer":{"id":499,"kind":"organization","name":"VIVMARK RESIDENTIAL","symbol":"VMRK"},"owners":[{"id":66933,"kind":"person","name":"Garechana Robert","position":1,"cik":"0001750568","reported_name":"Garechana Robert","relationship":{"officer":true,"officer_title":"EVP & Chief Financial Officer"}}],"security":"Common Shares Of Beneficial Interest","published_at":"2020-02-18T21:20:23.000Z","date":"2020-02-13","kind":"exercise","acquired":true,"shares":9419,"price":60.76,"value":572298.44,"ownership":{"direct":true},"footnotes":[{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F1","text":"Direct total includes restricted shares of Equity Residential scheduled to vest in the future."}],"balance_after":30049,"source":{"system":"sec-edgar","filing":"0001127602-20-006032","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":5,"url":"https://www.sec.gov/Archives/edgar/data/906107/000112760220006032/form4.xml","form_type":"4"}},{"id":3268005,"issuer":{"id":499,"kind":"organization","name":"VIVMARK RESIDENTIAL","symbol":"VMRK"},"owners":[{"id":66933,"kind":"person","name":"Garechana Robert","position":1,"cik":"0001750568","reported_name":"Garechana Robert","relationship":{"officer":true,"officer_title":"EVP & Chief Financial Officer"}}],"security":"Common Shares Of Beneficial Interest","published_at":"2020-02-18T21:20:23.000Z","date":"2020-02-13","kind":"sale","acquired":false,"shares":2128,"price":85.23,"value":181369.44,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F2","text":"The price represents the weighted average price of the shares sold.  The shares were sold within a range of $85.23 to $85.24.  The reporting person will provide, upon request by the SEC staff, the issuer, or any security holder of the issuer, full information regarding the number of shares sold at each separate price."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F1","text":"Direct total includes restricted shares of Equity Residential scheduled to vest in the future."}],"balance_after":20630,"source":{"system":"sec-edgar","filing":"0001127602-20-006032","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/906107/000112760220006032/form4.xml","form_type":"4"}},{"id":3268004,"issuer":{"id":499,"kind":"organization","name":"VIVMARK RESIDENTIAL","symbol":"VMRK"},"owners":[{"id":66933,"kind":"person","name":"Garechana Robert","position":1,"cik":"0001750568","reported_name":"Garechana Robert","relationship":{"officer":true,"officer_title":"EVP & Chief Financial 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