Note 9 - Other Assets (Details Textual) $ in Millions	3 Months Ended
Mar. 31, 2023 USD ($)
Gain (Loss) on Repayment of Mortgage Loan	$ 4

The amount of gain (loss) on repayment of mortgage loans.

No definition available.

Name:	kim_GainLossOnRepaymentOfMortgageLoan
Namespace Prefix:	kim_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration