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Note 12 - Other Assets (Details Textual) | Dec. 31, 2020
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Performing Financial Instruments [Member] |
Number of Loans | 8

X
- Definition The number of loans. + References No definition available. + Details
Name: | kim_NumberOfLoans
Namespace Prefix: | kim_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

X
- Details
Name: | us-gaap_FinancialInstrumentPerformanceStatusAxis=us-gaap_PerformingFinancingReceivableMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |