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Note 10 - Mortgages and Other Financing Receivables (Details) (USD $) In Thousands, unless otherwise specified | 12 Months Ended |  |
--- | --- | --- | ---
Dec. 31, 2014 | Dec. 31, 2013 acre | Dec. 31, 2012 | Dec. 31, 2011
Note 10 - Mortgages and Other Financing Receivables (Details) [Line Items] |  |  |  |
Mortgage Loans on Real Estate, Number of Loans | 16 us-gaap_MortgageLoansOnRealEstateNumberOfLoans |  |  |
Mortgage Loans on Real Estate | $ 74,013 us-gaap_MortgageLoansOnRealEstate | $ 30,243 us-gaap_MortgageLoansOnRealEstate | $ 70,704 us-gaap_MortgageLoansOnRealEstate | $ 102,972 us-gaap_MortgageLoansOnRealEstate
Foreclosed On [Member] |  |  |  |
Note 10 - Mortgages and Other Financing Receivables (Details) [Line Items] |  |  |  |
Mortgage Loans on Real Estate, Number of Loans |  | 2 us-gaap_MortgageLoansOnRealEstateNumberOfLoans / kim_DisclosureAxis = kim_ForeclosedOnMember |  |
Mortgage Loans on Real Estate |  | $ 25,600 us-gaap_MortgageLoansOnRealEstate / kim_DisclosureAxis = kim_ForeclosedOnMember |  |
Area of Real Estate Property |  | 59.24 us-gaap_AreaOfRealEstateProperty / kim_DisclosureAxis = kim_ForeclosedOnMember |  |
In Default [Member] |  |  |  |
Note 10 - Mortgages and Other Financing Receivables (Details) [Line Items] |  |  |  |
Area of Real Estate Property |  | 427.00 us-gaap_AreaOfRealEstateProperty / kim_DisclosureAxis = kim_InDefaultMember |  |

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- Definition Area of a real estate property. + References No definition available. + Details
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- Definition Total carrying amount of mortgage loans as of the balance sheet date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 205 -SubTopic 10 -Section S99 -Paragraph 6 -Subparagraph (SX 210.5-04.(c) Schedule IV) -URI http://asc.fasb.org/extlink&oid=27047687&loc=d3e5864-122674 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 29 -Article 12 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Paragraph c -Subparagraph Schedule IV -Article 5 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 948 -SubTopic 310 -Section S99 -Paragraph 1 -Subparagraph (SX 210.12-29.6) -URI http://asc.fasb.org/extlink&oid=6589523&loc=d3e617274-123014 + Details
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- Definition Indicates the number of mortgages under each classification. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 205 -SubTopic 10 -Section S99 -Paragraph 6 -Subparagraph (SX 210.5-04.(c) Schedule IV) -URI http://asc.fasb.org/extlink&oid=27047687&loc=d3e5864-122674 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 948 -SubTopic 310 -Section S99 -Paragraph 1 -Subparagraph (SX 210.12-29.3) -URI http://asc.fasb.org/extlink&oid=6589523&loc=d3e617274-123014 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Paragraph c -Subparagraph Schedule IV -Article 5 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 29 -Paragraph 3 -Article 12 + Details
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