Note 9 - Other Assets - Mortgage Loans and Other Financing Receivables (Details) $ in Millions	Mar. 31, 2023 USD ($)
Face amount	$ 25.0
Financing Receivable Maturing In December 24 [Member]
Face amount	$ 11.2
Interest rate	14.00%
Financing Receivable Maturing In April 24 [Member]
Face amount	$ 25.0
Interest rate	8.00%

Contractual interest rate for financing receivable.

No definition available.

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Namespace Prefix:	kim_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	instant