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Note 8 - Notes and Mortgages Payable - Note Repayments (Details) - Term Loan [Member] $ in Millions | 3 Months Ended
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Mar. 31, 2017 USD ($)
Amount Repaid | $ 250
Maturity Date | Jan-17

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- Definition Date when the debt instrument is scheduled to be fully repaid. + References No definition available. + Details
Name: | kim_DebtMaturityDate
Namespace Prefix: | kim_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- Definition The cash outflow for debt initially having maturity due after one year or beyond the normal operating cycle, if longer. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 15 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3291-108585 + Details
Name: | us-gaap_RepaymentsOfLongTermDebt
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

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- Details
Name: | us-gaap_LongtermDebtTypeAxis=kim_TermLoanMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |