Preferred Stock, Common Stock and Convertible Unit Transactions - Additional Information (Details) $ / shares in Units, $ in Thousands					12 Months Ended
		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.