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Note 9 - Other Assets - Mortgage Loans and Other Financing Receivables (Details) $ in Millions | Sep. 30, 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%

X
- Definition Face amount of financing receivable. + References No definition available. + Details
Name: | kim_FinancingReceivableFaceAmount
Namespace Prefix: | kim_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Contractual interest rate for financing receivable. + References No definition available. + Details
Name: | kim_FinancingReceivableInterestRateStatedPercentage
Namespace Prefix: | kim_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | instant

X
- Details
Name: | us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=kim_FinancingReceivableMaturingInDecember24Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=kim_FinancingReceivableMaturingInApril24Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |