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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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