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Note 14 - Noncontrolling Interests (Details) - Convertible Non-convertible Units (USD $) | 12 Months Ended
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Dec. 31, 2014
Preferred A Units [Member] |  |
Note 14 - Noncontrolling Interests (Details) - Convertible Non-convertible Units [Line Items] |  |
Number of Units Issued | 81,800,000 kim_NoncontrollingInterestUnitsIssued / us-gaap_PreferredUnitsByNameAxis = kim_PreferredAUnitsMember | [1]
Par Value Per Unit | $ 1.00 kim_NoncontrollingInterestParValue / us-gaap_PreferredUnitsByNameAxis = kim_PreferredAUnitsMember | [1]
Return Per Annum | 7.00%kim_NoncontrollingInterestAnnualReturn / us-gaap_PreferredUnitsByNameAxis = kim_PreferredAUnitsMember | [1]
Class A Preferred Units [Member] |  |
Note 14 - Noncontrolling Interests (Details) - Convertible Non-convertible Units [Line Items] |  |
Number of Units Issued | 2,000 kim_NoncontrollingInterestUnitsIssued / us-gaap_PreferredUnitsByNameAxis = kim_ClassAPreferredUnitsMember | [1]
Par Value Per Unit | $ 10,000 kim_NoncontrollingInterestParValue / us-gaap_PreferredUnitsByNameAxis = kim_ClassAPreferredUnitsMember | [1]
Return Per Annum | 2.00%kim_NoncontrollingInterestAnnualReturn / us-gaap_PreferredUnitsByNameAxis = kim_ClassAPreferredUnitsMember | [1]
Class B-1 Preferred Units [Member] |  |
Note 14 - Noncontrolling Interests (Details) - Convertible Non-convertible Units [Line Items] |  |
Number of Units Issued | 2,627 kim_NoncontrollingInterestUnitsIssued / us-gaap_PreferredUnitsByNameAxis = kim_ClassB1PreferredUnitsMember | [2]
Par Value Per Unit | $ 10,000 kim_NoncontrollingInterestParValue / us-gaap_PreferredUnitsByNameAxis = kim_ClassB1PreferredUnitsMember | [2]
Return Per Annum | 7.00%kim_NoncontrollingInterestAnnualReturn / us-gaap_PreferredUnitsByNameAxis = kim_ClassB1PreferredUnitsMember | [2]
Class B-2 Preferred Units [Member] |  |
Note 14 - Noncontrolling Interests (Details) - Convertible Non-convertible Units [Line Items] |  |
Number of Units Issued | 5,673 kim_NoncontrollingInterestUnitsIssued / us-gaap_PreferredUnitsByNameAxis = kim_ClassB2PreferredUnitsMember | [1]
Par Value Per Unit | $ 10,000 kim_NoncontrollingInterestParValue / us-gaap_PreferredUnitsByNameAxis = kim_ClassB2PreferredUnitsMember | [1]
Return Per Annum | 7.00%kim_NoncontrollingInterestAnnualReturn / us-gaap_PreferredUnitsByNameAxis = kim_ClassB2PreferredUnitsMember | [1]
Class C DownReit Units [Member] |  |
Note 14 - Noncontrolling Interests (Details) - Convertible Non-convertible Units [Line Items] |  |
Number of Units Issued | 640,001 kim_NoncontrollingInterestUnitsIssued / us-gaap_CapitalUnitsByClassAxis = kim_ClassCDownReitUnitsMember | [2]
Par Value Per Unit | $ 30.52 kim_NoncontrollingInterestParValue / us-gaap_CapitalUnitsByClassAxis = kim_ClassCDownReitUnitsMember | [2]
Return Per Annum |  | [2]
[1] | These units are redeemable for cash by the holder or callable by the Company and are included in Redeemable noncontrolling interests on the Company's Consolidated Balance Sheets.
[2] | These units are redeemable for cash by the holder or at the Company's option, shares of the Company's common stock, based upon the conversion calculation as defined in the agreement. These units are included in Noncontrolling interests on the Company's Consolidated Balance Sheets.

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