Investments in and Advances to Real Estate Joint Ventures - Schedule of Equity Method Investments (Details) - USD ($) $ in Millions		Jun. 30, 2025	Dec. 31, 2024
Kim Pru and Kim Pru II [Member]
Schedule of Equity Method Investments [Line Items]
Average ownership interest		15.00%
The company's investment		$ 127.5	$ 133.3
Kimco Income Fund [Member]
Schedule of Equity Method Investments [Line Items]
Average ownership interest		52.10%
The company's investment		$ 287.0	289.1
R2G Venture LLC [Member]
Schedule of Equity Method Investments [Line Items]
Average ownership interest		51.50%
The company's investment		$ 407.5	411.8
CPP [Member]
Schedule of Equity Method Investments [Line Items]
Average ownership interest		55.00%
The company's investment		$ 203.3	202.8
Other Institutional Joint Ventures [Member]
Schedule of Equity Method Investments [Line Items]
The company's investment		232.6	237.7
Other Joint Venture Programs [Member]
Schedule of Equity Method Investments [Line Items]
The company's investment		209.0	213.0
All Equity Method Investments [Member]
Schedule of Equity Method Investments [Line Items]
The company's investment	[1]	$ 1,466.9	$ 1,487.7

[1] Represents 115 property interests, 48 other property interests and 24.9 million square feet of GLA, as of June 30, 2025, and 116 property interests, 48 other property interests and 25.1 million square feet of GLA, as of December 31, 2024.