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Preferred Stock, Common Stock and Convertible Unit Transactions - Additional Information (Details) $ / shares in Units, $ in Thousands |  |  |  | 12 Months Ended |  |  |
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Dec. 16, 2024 USD ($) shares | Jan. 02, 2024 USD ($) $ / shares shares | Sep. 30, 2023 USD ($) $ / shares | Dec. 31, 2024 USD ($) $ / shares shares | Dec. 31, 2023 USD ($) $ / shares shares | Dec. 31, 2022 USD ($) shares | Nov. 04, 2024 $ / shares | Jan. 31, 2024 shares | Feb. 28, 2018 USD ($) $ / shares
Class of Stock [Line Items] |  |  |  |  |  |  |  |  |  |
Preferred Stock, Par or Stated Value Per Share (in dollars per share) |  |  |  |  | $ 1 | $ 1 |  |  |  |
Common Stock, Par or Stated Value Per Share (in dollars per share) |  |  |  |  | $ 0.01 | $ 0.01 |  |  |  |
Stock Repurchased During Period, Shares (in shares) | shares |  |  |  |  | 792,317 | 761,149 | 567,450 |  |  |
Aggregate Cost | $ |  |  |  |  | $ 26,719 | $ 1,631 | $ 3,442 |  |  |
Preferred stock redemption charges | $ |  |  |  |  | 3,304 | 0 | $ 0 |  |  |
Equity, Attributable to Noncontrolling Interest | $ |  |  |  |  | $ 145,365 | $ 127,993 |  |  |  |
Marketable securities, cash dividend declared, per share (in dollars per share) |  |  |  |  |  | $ 0.09 |  |  |  |
ATM Program [Member] |  |  |  |  |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |  |  |  |  |
Common Stock, Par or Stated Value Per Share (in dollars per share) |  |  |  | $ 0.01 |  |  |  |  |  |
Maximum Aggregate Sales Price | $ |  |  |  | $ 500,000 |  |  |  |  |  |
Stock Issued During Period, Shares, New Issues (in shares) | shares |  |  |  |  | 5,400,000 |  |  |  |  |
Proceeds from Issuance of Common Stock | $ |  |  |  |  | $ 135,800 |  |  |  |  |
Common Stock Available for Issuance, Value | $ |  |  |  |  | $ 362,500 |  |  |  |  |
Class L Cumulative Redeemable Preferred Stock Depositary Shares[Member] |  |  |  |  |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |  |  |  |  |
Preferred Stock, Liquidation Preference Per Share (in dollars per share) |  |  |  |  | $ 25 |  |  |  |  |
Class M Cumulative Redeemable Preferred Stock Depositary Shares [Member] |  |  |  |  |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |  |  |  |  |
Preferred Stock, Liquidation Preference Per Share (in dollars per share) |  |  |  |  | 25 |  |  |  |  |
Class N Cumulative Convertible Preferred Stock Depositary Shares [Member] |  |  |  |  |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |  |  |  |  |
Preferred Stock, Liquidation Preference Per Share (in dollars per share) |  |  |  |  | 50 |  |  |  |  |
Stock Repurchased During Period, Shares (in shares) | shares |  | 409,772 |  |  |  |  |  |  |  |
Share Price |  |  |  |  |  |  |  | $ 62 |  |
Aggregate Cost | $ |  | $ 26,700 |  |  |  |  |  |  |  |
Preferred stock redemption charges | $ |  | $ 3,300 |  |  |  |  |  |  |  |
Series L Preferred Stock [Member] |  |  |  |  |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |  |  |  |  |
Preferred Stock, Par or Stated Value Per Share (in dollars per share) |  |  |  |  | 1 | 1 |  |  |  |
Preferred Stock, Liquidation Preference Per Share (in dollars per share) |  |  |  |  | 25,000 |  |  |  |  |
Series M Preferred Stock [Member] |  |  |  |  |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |  |  |  |  |
Preferred Stock, Par or Stated Value Per Share (in dollars per share) |  |  |  |  | 1 | $ 1 |  |  |  |
Preferred Stock, Liquidation Preference Per Share (in dollars per share) |  |  |  |  | $ 25,000 |  |  |  |  |
Series L M Or N Preferred Stock [Member] |  |  |  |  |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |  |  |  |  |
Number of Votes |  |  |  |  | 1,000 |  |  |  |  |
Number of Proxies |  |  |  |  | 1,000 |  |  |  |  |
Number of Votes, Depositary |  |  |  |  | 1 |  |  |  |  |
Class N Preferred Stock [Member] |  |  |  |  |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |  |  |  |  |
Preferred Stock, Par or Stated Value Per Share (in dollars per share) | [1] |  |  |  | $ 1 |  |  |  |  |
Preferred Stock, Liquidation Preference Per Share (in dollars per share) |  |  |  |  | $ 50,000 |  |  |  |  |
Convertible Units [Member] |  |  |  |  |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |  |  |  |  |
Equity, Attributable to Noncontrolling Interest | $ |  |  |  |  | $ 54,700 |  |  |  |  |
Partners' Capital Account, Units, Converted (in shares) | shares |  |  |  |  | 2,300,000 |  |  |  |  |
RPT [Member] |  |  |  |  |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |  |  |  |  |
Common Stock Converted, Shares Issued | shares |  |  | 0.6049 |  |  |  |  |  |  |
RPT [Member] | Conversion of RPT Realty Shares Into Kimco Common Shares [Member] |  |  |  |  |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |  |  |  |  |
Common Stock Converted, Shares Issued | shares |  |  | 0.6049 |  |  |  |  |  |  |
Stock Issued During Period, Shares, Acquisitions (in shares) | shares |  |  | 53,000,000 |  |  |  |  |  |  |
RPT [Member] | Class N Cumulative Convertible Preferred Stock Depositary Shares [Member] |  |  |  |  |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |  |  |  |  |
Stock Issued During Period, Shares, Acquisitions (in shares) | shares |  |  | 1,848,539 |  |  |  |  |  |  |
RPT [Member] | Class N Preferred Stock [Member] |  |  |  |  |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |  |  |  |  |
Stock Issued During Period, Value, Acquisitions | $ |  |  | $ 105,600 |  |  |  |  |  |  |
Preferred Stock, Par or Stated Value Per Share (in dollars per share) |  |  | $ 1 |  |  |  |  |  |  |
Stock Issued During Period, Shares, Acquisitions (in shares) | shares |  |  | 1,849 |  |  |  |  |  |  |
Preferred Stock, Convertible, Conversion Ratio |  |  | 2.3071 |  |  |  |  |  |  |
Convertible Preferred Stock, Shares Issued upon Conversion (in shares) | shares |  |  |  |  | 3,300,000 |  |  |  |  |
Common Share Repurchase Program [Member] |  |  |  |  |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |  |  |  |  |
Common Stock, Par or Stated Value Per Share (in dollars per share) |  |  |  |  |  |  |  |  |  | $ 0.01
Stock Repurchase Program, Authorized Amount | $ |  |  |  |  |  |  |  |  |  | $ 300,000
Stock Repurchased During Period, Shares (in shares) | shares |  |  |  |  | 0 | 0 |  |  |  |
Stock Repurchase Program, Remaining Authorized Repurchase Amount | $ |  |  |  |  | $ 224,900 |  |  |  |  |
Common Share Repurchase Program [Member] | Class L Cumulative Redeemable Preferred Stock Depositary Shares[Member] |  |  |  |  |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |  |  |  |  |
Share Repurchase Program, Authorized, Number of Shares (in shares) | shares |  |  |  |  |  |  |  |  | 891,000 |
Common Share Repurchase Program [Member] | Class M Cumulative Redeemable Preferred Stock Depositary Shares [Member] |  |  |  |  |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |  |  |  |  |
Share Repurchase Program, Authorized, Number of Shares (in shares) | shares |  |  |  |  |  |  |  |  | 1,047,000 |
Common Share Repurchase Program [Member] | Class N Cumulative Convertible Preferred Stock Depositary Shares [Member] |  |  |  |  |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |  |  |  |  |
Share Repurchase Program, Authorized, Number of Shares (in shares) | shares |  |  |  |  |  |  |  |  | 185,000 |
[1] | In connection with the RPT Merger, the Company issued 1,849 shares of Class N Preferred Stock with a par value of $1.00 per share, represented by 1,848,539 depositary shares, which had a fair market value of $105.6 million. The Class N Preferred Stock depositary shares are convertible by the holders at an exchange ratio of 2.3071 into the Company’s common shares or under certain circumstances by the Company’s election. As of December 31, 2024, the Class N Preferred Stock was potentially convertible into 3.3 million shares of common stock.

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