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Noncontrolling Interests - Additional Information (Details) $ in Thousands |  | 3 Months Ended | 9 Months Ended | 12 Months Ended |  |
--- | --- | --- | --- | --- | --- | ---
Jan. 02, 2024 USD ($) shares | Sep. 30, 2025 USD ($) Property | Sep. 30, 2024 USD ($) | Sep. 30, 2025 USD ($) Property shares | Sep. 30, 2024 USD ($) shares | Dec. 31, 2022 USD ($) | Dec. 31, 2024 USD ($) | Dec. 31, 2023 USD ($)
Noncontrolling Interest [Line Items] |  |  |  |  |  |  |  |  |
Redeemable noncontrolling interests |  |  | $ 46,783 | $ 73,688 | $ 46,783 | $ 73,688 |  | $ 47,877 | $ 72,277
Noncontrolling interest, increase from subsidiary equity issuance |  |  | $ 125 | 274 | 125 | 274 |  |  |
Noncontrolling interest, decrease from redemptions or purchase of interests | [1] |  |  |  | $ 676 | 1,290 |  |  |
Long Island, NY [Member] |  |  |  |  |  |  |  |  |
Noncontrolling Interest [Line Items] |  |  |  |  |  |  |  |  |
Number of real estate properties | Property |  |  | 8 |  | 8 |  |  |  |
Noncontrolling interest, increase from subsidiary equity issuance |  |  |  |  | $ 54,500 |  |  |  |
Embedded derivative, fair value of embedded derivative liability |  |  | $ 17,700 |  | 17,700 |  |  |  |
Cash paid to noncontrolling interests to settle capital units |  |  |  |  | 1,000 | 2,100 |  |  |
Increase (decrease) in other liabilities |  |  |  |  | $ 400 | $ 800 |  |  |
Kimco Realty OP, LLC [Member] |  |  |  |  |  |  |  |  |
Noncontrolling Interest [Line Items] |  |  |  |  |  |  |  |  |
Subsidiary, ownership percentage, parent |  |  | 99.79% |  | 99.79% |  |  |  |
OP Units [Member] |  |  |  |  |  |  |  |  |
Noncontrolling Interest [Line Items] |  |  |  |  |  |  |  |  |
Redeemable units to company common stock, ratio |  |  | 1 |  | 1 |  |  |  |
Redeemable noncontrolling interests |  |  | $ 29,100 |  | $ 29,100 |  |  |  |
Preferred Units [Member] | Long Island, NY [Member] |  |  |  |  |  |  |  |  |
Noncontrolling Interest [Line Items] |  |  |  |  |  |  |  |  |
Noncontrolling interest, increase from subsidiary equity issuance |  |  |  |  |  |  | $ 122,100 |  |
Non-controlling interest, units redeemed (in shares) | shares |  |  |  |  | 46,461 | 101,369 |  |  |
Common Units [Member] | Long Island, NY [Member] |  |  |  |  |  |  |  |  |
Noncontrolling Interest [Line Items] |  |  |  |  |  |  |  |  |
Noncontrolling interest, increase from subsidiary equity issuance |  |  |  |  |  |  | $ 13,600 |  |
Non-controlling interest, units redeemed (in shares) | shares |  |  |  |  | 5,162 | 3,441 |  |  |
Noncontrolling Interest [Member] |  |  |  |  |  |  |  |  |
Noncontrolling Interest [Line Items] |  |  |  |  |  |  |  |  |
Noncontrolling interest, increase from subsidiary equity issuance |  |  | $ 125 | $ 274 | $ 125 | $ 274 |  |  |
Noncontrolling Interest [Member] | Long Island, NY [Member] |  |  |  |  |  |  |  |  |
Noncontrolling Interest [Line Items] |  |  |  |  |  |  |  |  |
Noncontrolling interest, increase from subsidiary equity issuance |  |  |  |  | 36,800 |  |  |  |
Noncontrolling interest, decrease from redemptions or purchase of interests |  |  |  |  | $ 700 | $ 1,300 |  |  |
RPT [Member] | OP Units [Member] | Kimco Realty OP, LLC [Member] |  |  |  |  |  |  |  |  |
Noncontrolling Interest [Line Items] |  |  |  |  |  |  |  |  |
Units issued during period, units, acquisitions (in shares) | shares |  | 953,400 |  |  |  |  |  |  |
Units issued during period, value, acquisitions |  | $ 21,000 |  |  |  |  |  |  |
[1] | Includes Preferred and Common Outside Partner Units, which were partially redeemed during the nine months ended September 30, 2025 and 2024.

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