XML 51 R75.htm IDEA: XBRL DOCUMENT
v2.4.1.9

Note 7 - Investment and Advances in Real Estate Joint Ventures (Details) (USD $) | 12 Months Ended | 0 Months Ended | 1 Months Ended | 3 Months Ended
--- | --- | --- | --- | ---
Dec. 31, 2014 | Dec. 31, 2013 | Dec. 31, 2012 | Feb. 02, 2015 | Jun. 30, 2013 | Dec. 31, 2014
Note 7 - Investment and Advances in Real Estate Joint Ventures (Details) [Line Items] |  |  |  |  |  |  |  |  |  |
Number of Joint Ventures | 3 kim_NumberOfJointVentures |  | 4 kim_NumberOfJointVentures |  |  |  |  |  | 3 kim_NumberOfJointVentures |
Business Acquisition, Percentage of Voting Interests Acquired | 65.40%us-gaap_BusinessAcquisitionPercentageOfVotingInterestsAcquired |  |  |  |  |  |  |  | 65.40%us-gaap_BusinessAcquisitionPercentageOfVotingInterestsAcquired |
Business Combination, Consideration Transferred | $ 1,442,237,000 us-gaap_BusinessCombinationConsiderationTransferred1 |  | $ 724,468,000 us-gaap_BusinessCombinationConsiderationTransferred1 |  |  |  |  |  |  |
Business Combination, Step Acquisition, Equity Interest in Acquiree, Remeasurement Gain | 107,235,000 us-gaap_BusinessCombinationStepAcquisitionEquityInterestInAcquireeRemeasurementGain |  | 21,711,000 us-gaap_BusinessCombinationStepAcquisitionEquityInterestInAcquireeRemeasurementGain |  | 15,555,000 us-gaap_BusinessCombinationStepAcquisitionEquityInterestInAcquireeRemeasurementGain |  |  |  |  |
Payments to Acquire Real Estate | 384,828,000 us-gaap_PaymentsToAcquireRealEstate |  | 354,287,000 us-gaap_PaymentsToAcquireRealEstate |  | 442,541,000 us-gaap_PaymentsToAcquireRealEstate |  |  |  |  |
Real Estate Tax Expense | 124,670,000 us-gaap_RealEstateTaxExpense |  | 108,746,000 us-gaap_RealEstateTaxExpense |  | 101,820,000 us-gaap_RealEstateTaxExpense |  |  |  |  |
Income Tax Expense (Benefit) | 22,438,000 us-gaap_IncomeTaxExpenseBenefit |  | 32,654,000 us-gaap_IncomeTaxExpenseBenefit |  | 15,603,000 us-gaap_IncomeTaxExpenseBenefit |  |  |  |  |
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Gain (Loss), before Reclassification and Tax | 96,895,000 us-gaap_OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationGainLossBeforeReclassificationAndTax |  | (4,208,000)us-gaap_OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationGainLossBeforeReclassificationAndTax |  | 43,515,000 us-gaap_OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationGainLossBeforeReclassificationAndTax |  |  |  |  |
Income (Loss) from Equity Method Investments | 159,560,000 us-gaap_IncomeLossFromEquityMethodInvestments |  | 208,689,000 us-gaap_IncomeLossFromEquityMethodInvestments |  | 112,896,000 us-gaap_IncomeLossFromEquityMethodInvestments |  |  |  |  |
Transfer Mortgage Payable |  |  |  |  | 17,083,000 us-gaap_TransferMortgagePayable |  |  |  |  |
Other Liabilities | 431,533,000 us-gaap_OtherLiabilities |  | 357,764,000 us-gaap_OtherLiabilities |  |  |  |  |  | 431,533,000 us-gaap_OtherLiabilities |
Equity Method Investments | 1,037,218,000 us-gaap_EquityMethodInvestments |  | 1,257,010,000 us-gaap_EquityMethodInvestments |  |  |  |  |  | 1,037,218,000 us-gaap_EquityMethodInvestments |
Mortgage Loans on Real Estate [Member] | Subsequent Event [Member] | Kimstone [Member] |  |  |  |  |  |  |  |  |  |
Note 7 - Investment and Advances in Real Estate Joint Ventures (Details) [Line Items] |  |  |  |  |  |  |  |  |  |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Noncurrent Liabilities, Long-term Debt |  |  |  |  |  |  | 638,000,000 us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNoncurrentLiabilitiesLongTermDebt / us-gaap_BusinessAcquisitionAxis = kim_KimstoneMember / us-gaap_InvestmentTypeAxis = us-gaap_MortgageLoansOnRealEstateMember / us-gaap_SubsequentEventTypeAxis = us-gaap_SubsequentEventMember |  |  |
Sold [Member] | Encumbered [Member] | Other Institutional Programs [Member] | Operating Properties [Member] |  |  |  |  |  |  |  |  |  |
Note 7 - Investment and Advances in Real Estate Joint Ventures (Details) [Line Items] |  |  |  |  |  |  |  |  |  |
Number of Real Estate Properties |  |  |  |  | 2 us-gaap_NumberOfRealEstateProperties / us-gaap_MortgageLoansOnRealEstateDescriptionLoanCategoryAxis = kim_EncumberedMember / us-gaap_RealEstatePropertiesAxis = kim_OperatingPropertiesMember / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = kim_OtherInstitutionalProgramsMember / us-gaap_SignificantAcquisitionsAndDisposalsByTransactionAxis = kim_SoldMember |  |  |  |  |
Sold [Member] | Impaired [Member] | KIR [Member] |  |  |  |  |  |  |  |  |  |
Note 7 - Investment and Advances in Real Estate Joint Ventures (Details) [Line Items] |  |  |  |  |  |  |  |  |  |
Number of Real Estate Properties | 1 us-gaap_NumberOfRealEstateProperties / us-gaap_MajorPropertyClassAxis = kim_ImpairedMember / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = kim_KIRMember / us-gaap_SignificantAcquisitionsAndDisposalsByTransactionAxis = kim_SoldMember |  |  |  |  |  |  |  | 1 us-gaap_NumberOfRealEstateProperties / us-gaap_MajorPropertyClassAxis = kim_ImpairedMember / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = kim_KIRMember / us-gaap_SignificantAcquisitionsAndDisposalsByTransactionAxis = kim_SoldMember |
Sales of Real Estate | 2,000,000 us-gaap_SalesOfRealEstate / us-gaap_MajorPropertyClassAxis = kim_ImpairedMember / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = kim_KIRMember / us-gaap_SignificantAcquisitionsAndDisposalsByTransactionAxis = kim_SoldMember |  |  |  |  |  |  |  |  |
Sold [Member] | KIR [Member] | Operating Properties [Member] |  |  |  |  |  |  |  |  |  |
Note 7 - Investment and Advances in Real Estate Joint Ventures (Details) [Line Items] |  |  |  |  |  |  |  |  |  |
Number of Real Estate Properties | 2 us-gaap_NumberOfRealEstateProperties / us-gaap_RealEstatePropertiesAxis = kim_OperatingPropertiesMember / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = kim_KIRMember / us-gaap_SignificantAcquisitionsAndDisposalsByTransactionAxis = kim_SoldMember |  |  |  |  |  |  |  | 2 us-gaap_NumberOfRealEstateProperties / us-gaap_RealEstatePropertiesAxis = kim_OperatingPropertiesMember / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = kim_KIRMember / us-gaap_SignificantAcquisitionsAndDisposalsByTransactionAxis = kim_SoldMember |
Sold [Member] | KIR [Member] | Parent Company [Member] |  |  |  |  |  |  |  |  |  |
Note 7 - Investment and Advances in Real Estate Joint Ventures (Details) [Line Items] |  |  |  |  |  |  |  |  |  |
Gains (Losses) on Sales of Investment Real Estate | 1,100,000 us-gaap_GainsLossesOnSalesOfInvestmentRealEstate / dei_LegalEntityAxis = us-gaap_ParentCompanyMember / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = kim_KIRMember / us-gaap_SignificantAcquisitionsAndDisposalsByTransactionAxis = kim_SoldMember |  |  |  |  |  |  |  |  |
Sold [Member] | KIR [Member] |  |  |  |  |  |  |  |  |  |
Note 7 - Investment and Advances in Real Estate Joint Ventures (Details) [Line Items] |  |  |  |  |  |  |  |  |  |
Sales of Real Estate | 17,700,000 us-gaap_SalesOfRealEstate / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = kim_KIRMember / us-gaap_SignificantAcquisitionsAndDisposalsByTransactionAxis = kim_SoldMember |  |  |  |  |  |  |  |  |
Sold [Member] | UBS Programs [Member] |  |  |  |  |  |  |  |  |  |
Note 7 - Investment and Advances in Real Estate Joint Ventures (Details) [Line Items] |  |  |  |  |  |  |  |  |  |
Number of Real Estate Properties |  |  |  |  | 2 us-gaap_NumberOfRealEstateProperties / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = kim_UBSProgramsMember / us-gaap_SignificantAcquisitionsAndDisposalsByTransactionAxis = kim_SoldMember |  |  |  |  |
Sold [Member] | Other Institutional Programs [Member] | Operating Properties [Member] | Parent Company [Member] |  |  |  |  |  |  |  |  |  |
Note 7 - Investment and Advances in Real Estate Joint Ventures (Details) [Line Items] |  |  |  |  |  |  |  |  |  |
Number of Joint Ventures | 2 kim_NumberOfJointVentures / dei_LegalEntityAxis = us-gaap_ParentCompanyMember / us-gaap_RealEstatePropertiesAxis = kim_OperatingPropertiesMember / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = kim_OtherInstitutionalProgramsMember / us-gaap_SignificantAcquisitionsAndDisposalsByTransactionAxis = kim_SoldMember |  |  |  |  |  |  |  | 2 kim_NumberOfJointVentures / dei_LegalEntityAxis = us-gaap_ParentCompanyMember / us-gaap_RealEstatePropertiesAxis = kim_OperatingPropertiesMember / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = kim_OtherInstitutionalProgramsMember / us-gaap_SignificantAcquisitionsAndDisposalsByTransactionAxis = kim_SoldMember |
Gains (Losses) on Sales of Investment Real Estate | 2,200,000 us-gaap_GainsLossesOnSalesOfInvestmentRealEstate / dei_LegalEntityAxis = us-gaap_ParentCompanyMember / us-gaap_RealEstatePropertiesAxis = kim_OperatingPropertiesMember / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = kim_OtherInstitutionalProgramsMember / us-gaap_SignificantAcquisitionsAndDisposalsByTransactionAxis = kim_SoldMember |  |  |  |  |  |  |  |  |
Sold [Member] | Other Institutional Programs [Member] | Operating Properties [Member] |  |  |  |  |  |  |  |  |  |
Note 7 - Investment and Advances in Real Estate Joint Ventures (Details) [Line Items] |  |  |  |  |  |  |  |  |  |
Number of Real Estate Properties | 2 us-gaap_NumberOfRealEstateProperties / us-gaap_RealEstatePropertiesAxis = kim_OperatingPropertiesMember / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = kim_OtherInstitutionalProgramsMember / us-gaap_SignificantAcquisitionsAndDisposalsByTransactionAxis = kim_SoldMember |  |  |  |  |  |  |  | 2 us-gaap_NumberOfRealEstateProperties / us-gaap_RealEstatePropertiesAxis = kim_OperatingPropertiesMember / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = kim_OtherInstitutionalProgramsMember / us-gaap_SignificantAcquisitionsAndDisposalsByTransactionAxis = kim_SoldMember |
Sales of Real Estate | 46,600,000 us-gaap_SalesOfRealEstate / us-gaap_RealEstatePropertiesAxis = kim_OperatingPropertiesMember / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = kim_OtherInstitutionalProgramsMember / us-gaap_SignificantAcquisitionsAndDisposalsByTransactionAxis = kim_SoldMember |  |  |  |  |  |  |  |  |
Gains (Losses) on Sales of Investment Real Estate | 11,100,000 us-gaap_GainsLossesOnSalesOfInvestmentRealEstate / us-gaap_RealEstatePropertiesAxis = kim_OperatingPropertiesMember / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = kim_OtherInstitutionalProgramsMember / us-gaap_SignificantAcquisitionsAndDisposalsByTransactionAxis = kim_SoldMember |  |  |  |  |  |  |  |  |
Sold [Member] | Other Institutional Programs [Member] |  |  |  |  |  |  |  |  |  |
Note 7 - Investment and Advances in Real Estate Joint Ventures (Details) [Line Items] |  |  |  |  |  |  |  |  |  |
Number of Real Estate Properties |  |  |  |  | 2 us-gaap_NumberOfRealEstateProperties / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = kim_OtherInstitutionalProgramsMember / us-gaap_SignificantAcquisitionsAndDisposalsByTransactionAxis = kim_SoldMember |  |  |  |  |
Sold [Member] | Other Joint Venture Programs [Member] | Operating Properties [Member] |  |  |  |  |  |  |  |  |  |
Note 7 - Investment and Advances in Real Estate Joint Ventures (Details) [Line Items] |  |  |  |  |  |  |  |  |  |
Number of Real Estate Properties | 2 us-gaap_NumberOfRealEstateProperties / us-gaap_RealEstatePropertiesAxis = kim_OperatingPropertiesMember / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = kim_OtherJointVentureProgramsMember / us-gaap_SignificantAcquisitionsAndDisposalsByTransactionAxis = kim_SoldMember |  | 6 us-gaap_NumberOfRealEstateProperties / us-gaap_RealEstatePropertiesAxis = kim_OperatingPropertiesMember / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = kim_OtherJointVentureProgramsMember / us-gaap_SignificantAcquisitionsAndDisposalsByTransactionAxis = kim_SoldMember |  |  |  |  |  | 2 us-gaap_NumberOfRealEstateProperties / us-gaap_RealEstatePropertiesAxis = kim_OperatingPropertiesMember / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = kim_OtherJointVentureProgramsMember / us-gaap_SignificantAcquisitionsAndDisposalsByTransactionAxis = kim_SoldMember |
Sold [Member] | Other Joint Venture Programs [Member] |  |  |  |  |  |  |  |  |  |
Note 7 - Investment and Advances in Real Estate Joint Ventures (Details) [Line Items] |  |  |  |  |  |  |  |  |  |
Number of Real Estate Properties | 16 us-gaap_NumberOfRealEstateProperties / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = kim_OtherJointVentureProgramsMember / us-gaap_SignificantAcquisitionsAndDisposalsByTransactionAxis = kim_SoldMember |  | 2 us-gaap_NumberOfRealEstateProperties / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = kim_OtherJointVentureProgramsMember / us-gaap_SignificantAcquisitionsAndDisposalsByTransactionAxis = kim_SoldMember |  | 1 us-gaap_NumberOfRealEstateProperties / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = kim_OtherJointVentureProgramsMember / us-gaap_SignificantAcquisitionsAndDisposalsByTransactionAxis = kim_SoldMember |  |  |  | 16 us-gaap_NumberOfRealEstateProperties / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = kim_OtherJointVentureProgramsMember / us-gaap_SignificantAcquisitionsAndDisposalsByTransactionAxis = kim_SoldMember |
Sales of Real Estate | 199,500,000 us-gaap_SalesOfRealEstate / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = kim_OtherJointVentureProgramsMember / us-gaap_SignificantAcquisitionsAndDisposalsByTransactionAxis = kim_SoldMember |  |  |  |  |  |  |  |  |
Sold [Member] | Operating Properties [Member] | MEXICO |  |  |  |  |  |  |  |  |  |
Note 7 - Investment and Advances in Real Estate Joint Ventures (Details) [Line Items] |  |  |  |  |  |  |  |  |  |
Number of Real Estate Properties | 14 us-gaap_NumberOfRealEstateProperties / us-gaap_RealEstatePropertiesAxis = kim_OperatingPropertiesMember / us-gaap_SignificantAcquisitionsAndDisposalsByTransactionAxis = kim_SoldMember / us-gaap_StatementGeographicalAxis = country_MX |  |  |  |  |  |  |  | 14 us-gaap_NumberOfRealEstateProperties / us-gaap_RealEstatePropertiesAxis = kim_OperatingPropertiesMember / us-gaap_SignificantAcquisitionsAndDisposalsByTransactionAxis = kim_SoldMember / us-gaap_StatementGeographicalAxis = country_MX |
Sold [Member] | Operating Properties [Member] | Mexico and Chile [Member] |  |  |  |  |  |  |  |  |  |
Note 7 - Investment and Advances in Real Estate Joint Ventures (Details) [Line Items] |  |  |  |  |  |  |  |  |  |
Number of Real Estate Properties |  |  | 20 us-gaap_NumberOfRealEstateProperties / us-gaap_RealEstatePropertiesAxis = kim_OperatingPropertiesMember / us-gaap_SignificantAcquisitionsAndDisposalsByTransactionAxis = kim_SoldMember / us-gaap_StatementGeographicalAxis = kim_MexicoandChileMember |  |  |  |  |  |  |
Acquired [Member] | SEB Immobilien [Member] | Operating Properties [Member] |  |  |  |  |  |  |  |  |  |
Note 7 - Investment and Advances in Real Estate Joint Ventures (Details) [Line Items] |  |  |  |  |  |  |  |  |  |
Number of Real Estate Properties | 10 us-gaap_NumberOfRealEstateProperties / us-gaap_BusinessAcquisitionAxis = kim_SEBImmobilienMember / us-gaap_RealEstatePropertiesAxis = kim_OperatingPropertiesMember / us-gaap_SignificantAcquisitionsAndDisposalsByTransactionAxis = kim_AcquiredMember |  |  |  |  |  |  |  | 10 us-gaap_NumberOfRealEstateProperties / us-gaap_BusinessAcquisitionAxis = kim_SEBImmobilienMember / us-gaap_RealEstatePropertiesAxis = kim_OperatingPropertiesMember / us-gaap_SignificantAcquisitionsAndDisposalsByTransactionAxis = kim_AcquiredMember |
Equity Method Investment, Ownership Percentage | 85.00%us-gaap_EquityMethodInvestmentOwnershipPercentage / us-gaap_BusinessAcquisitionAxis = kim_SEBImmobilienMember / us-gaap_RealEstatePropertiesAxis = kim_OperatingPropertiesMember / us-gaap_SignificantAcquisitionsAndDisposalsByTransactionAxis = kim_AcquiredMember |  |  |  |  |  |  |  | 85.00%us-gaap_EquityMethodInvestmentOwnershipPercentage / us-gaap_BusinessAcquisitionAxis = kim_SEBImmobilienMember / us-gaap_RealEstatePropertiesAxis = kim_OperatingPropertiesMember / us-gaap_SignificantAcquisitionsAndDisposalsByTransactionAxis = kim_AcquiredMember |
Payments to Acquire Real Estate | 275,800,000 us-gaap_PaymentsToAcquireRealEstate / us-gaap_BusinessAcquisitionAxis = kim_SEBImmobilienMember / us-gaap_RealEstatePropertiesAxis = kim_OperatingPropertiesMember / us-gaap_SignificantAcquisitionsAndDisposalsByTransactionAxis = kim_AcquiredMember |  |  |  |  |  |  |  |  |
Pending Sale [Member] | Other Joint Venture Programs [Member] |  |  |  |  |  |  |  |  |  |
Note 7 - Investment and Advances in Real Estate Joint Ventures (Details) [Line Items] |  |  |  |  |  |  |  |  |  |
Number of Real Estate Properties |  |  |  |  | 1 us-gaap_NumberOfRealEstateProperties / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = kim_OtherJointVentureProgramsMember / us-gaap_SignificantAcquisitionsAndDisposalsByTransactionAxis = kim_PendingSaleMember |  |  |  |  |
Encumbered [Member] | Other Institutional Programs [Member] | Operating Properties [Member] |  |  |  |  |  |  |  |  |  |
Note 7 - Investment and Advances in Real Estate Joint Ventures (Details) [Line Items] |  |  |  |  |  |  |  |  |  |
Sales of Real Estate |  |  |  |  | 75,500,000 us-gaap_SalesOfRealEstate / us-gaap_MortgageLoansOnRealEstateDescriptionLoanCategoryAxis = kim_EncumberedMember / us-gaap_RealEstatePropertiesAxis = kim_OperatingPropertiesMember / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = kim_OtherInstitutionalProgramsMember |  |  |  |  |
Other Income |  |  |  |  | 2,600,000 us-gaap_OtherIncome / us-gaap_MortgageLoansOnRealEstateDescriptionLoanCategoryAxis = kim_EncumberedMember / us-gaap_RealEstatePropertiesAxis = kim_OperatingPropertiesMember / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = kim_OtherInstitutionalProgramsMember |  |  |  |  |
Subsequent Event [Member] | Kimstone [Member] | Minimum [Member] |  |  |  |  |  |  |  |  |  |
Note 7 - Investment and Advances in Real Estate Joint Ventures (Details) [Line Items] |  |  |  |  |  |  |  |  |  |
Business Combination, Step Acquisition, Equity Interest in Acquiree, Remeasurement Gain |  |  |  |  |  |  | 130,000,000 us-gaap_BusinessCombinationStepAcquisitionEquityInterestInAcquireeRemeasurementGain / us-gaap_BusinessAcquisitionAxis = kim_KimstoneMember / us-gaap_RangeAxis = us-gaap_MinimumMember / us-gaap_SubsequentEventTypeAxis = us-gaap_SubsequentEventMember |  |  |
Subsequent Event [Member] | Kimstone [Member] | Maximum [Member] |  |  |  |  |  |  |  |  |  |
Note 7 - Investment and Advances in Real Estate Joint Ventures (Details) [Line Items] |  |  |  |  |  |  |  |  |  |
Business Combination, Step Acquisition, Equity Interest in Acquiree, Remeasurement Gain |  |  |  |  |  |  | 140,000,000 us-gaap_BusinessCombinationStepAcquisitionEquityInterestInAcquireeRemeasurementGain / us-gaap_BusinessAcquisitionAxis = kim_KimstoneMember / us-gaap_RangeAxis = us-gaap_MaximumMember / us-gaap_SubsequentEventTypeAxis = us-gaap_SubsequentEventMember |  |  |
Subsequent Event [Member] | Kimstone [Member] |  |  |  |  |  |  |  |  |  |
Note 7 - Investment and Advances in Real Estate Joint Ventures (Details) [Line Items] |  |  |  |  |  |  |  |  |  |
Number of Real Estate Properties |  |  |  |  |  |  | 39 us-gaap_NumberOfRealEstateProperties / us-gaap_BusinessAcquisitionAxis = kim_KimstoneMember / us-gaap_SubsequentEventTypeAxis = us-gaap_SubsequentEventMember |  |  |
Business Acquisition, Percentage of Voting Interests Acquired |  |  |  |  |  |  | 66.70%us-gaap_BusinessAcquisitionPercentageOfVotingInterestsAcquired / us-gaap_BusinessAcquisitionAxis = kim_KimstoneMember / us-gaap_SubsequentEventTypeAxis = us-gaap_SubsequentEventMember |  |  |
Business Combination, Consideration Transferred |  |  |  |  |  |  | 1,400,000,000 us-gaap_BusinessCombinationConsiderationTransferred1 / us-gaap_BusinessAcquisitionAxis = kim_KimstoneMember / us-gaap_SubsequentEventTypeAxis = us-gaap_SubsequentEventMember |  |  |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Noncurrent Liabilities, Long-term Debt |  |  |  |  |  |  | 638,000,000 us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNoncurrentLiabilitiesLongTermDebt / us-gaap_BusinessAcquisitionAxis = kim_KimstoneMember / us-gaap_SubsequentEventTypeAxis = us-gaap_SubsequentEventMember |  |  |
Properties Divided [Member] | BIG Shopping Centers [Member] | Operating Properties [Member] |  |  |  |  |  |  |  |  |  |
Note 7 - Investment and Advances in Real Estate Joint Ventures (Details) [Line Items] |  |  |  |  |  |  |  |  |  |
Number of Real Estate Properties | 15 us-gaap_NumberOfRealEstateProperties / us-gaap_RealEstatePropertiesAxis = kim_OperatingPropertiesMember / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = kim_BIGShoppingCentersMember / us-gaap_StatementScenarioAxis = kim_PropertiesDividedMember |  |  |  |  |  |  |  | 15 us-gaap_NumberOfRealEstateProperties / us-gaap_RealEstatePropertiesAxis = kim_OperatingPropertiesMember / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = kim_BIGShoppingCentersMember / us-gaap_StatementScenarioAxis = kim_PropertiesDividedMember |
Assets Held-for-sale [Member] | KIR [Member] | Parent Company [Member] |  |  |  |  |  |  |  |  |  |
Note 7 - Investment and Advances in Real Estate Joint Ventures (Details) [Line Items] |  |  |  |  |  |  |  |  |  |
Impairment of Real Estate | 2,800,000 us-gaap_ImpairmentOfRealEstate / dei_LegalEntityAxis = us-gaap_ParentCompanyMember / us-gaap_MajorPropertyClassAxis = us-gaap_AssetsHeldForSaleMember / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = kim_KIRMember |  |  |  |  |  |  |  |  |
Assets Held-for-sale [Member] | KIR [Member] |  |  |  |  |  |  |  |  |  |
Note 7 - Investment and Advances in Real Estate Joint Ventures (Details) [Line Items] |  |  |  |  |  |  |  |  |  |
Impairment of Real Estate | 5,000,000 us-gaap_ImpairmentOfRealEstate / us-gaap_MajorPropertyClassAxis = us-gaap_AssetsHeldForSaleMember / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = kim_KIRMember |  |  |  |  |  |  |  |  |
Number of Real Estate Properties | 2 us-gaap_NumberOfRealEstateProperties / us-gaap_MajorPropertyClassAxis = us-gaap_AssetsHeldForSaleMember / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = kim_KIRMember |  |  |  |  |  |  |  | 2 us-gaap_NumberOfRealEstateProperties / us-gaap_MajorPropertyClassAxis = us-gaap_AssetsHeldForSaleMember / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = kim_KIRMember |
Assets Held-for-sale [Member] | BIG Shopping Centers [Member] | Operating Properties [Member] |  |  |  |  |  |  |  |  |  |
Note 7 - Investment and Advances in Real Estate Joint Ventures (Details) [Line Items] |  |  |  |  |  |  |  |  |  |
Number of Real Estate Properties | 6 us-gaap_NumberOfRealEstateProperties / us-gaap_MajorPropertyClassAxis = us-gaap_AssetsHeldForSaleMember / us-gaap_RealEstatePropertiesAxis = kim_OperatingPropertiesMember / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = kim_BIGShoppingCentersMember |  |  |  |  |  |  |  | 6 us-gaap_NumberOfRealEstateProperties / us-gaap_MajorPropertyClassAxis = us-gaap_AssetsHeldForSaleMember / us-gaap_RealEstatePropertiesAxis = kim_OperatingPropertiesMember / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = kim_BIGShoppingCentersMember |
Assets Held-for-sale [Member] | Operating Properties [Member] |  |  |  |  |  |  |  |  |  |
Note 7 - Investment and Advances in Real Estate Joint Ventures (Details) [Line Items] |  |  |  |  |  |  |  |  |  |
Number of Real Estate Properties |  |  |  |  | 18 us-gaap_NumberOfRealEstateProperties / us-gaap_MajorPropertyClassAxis = us-gaap_AssetsHeldForSaleMember / us-gaap_RealEstatePropertiesAxis = kim_OperatingPropertiesMember |  |  |  |  |
Assets Held-for-sale [Member] |  |  |  |  |  |  |  |  |  |
Note 7 - Investment and Advances in Real Estate Joint Ventures (Details) [Line Items] |  |  |  |  |  |  |  |  |  |
Number of Real Estate Properties |  |  | 5 us-gaap_NumberOfRealEstateProperties / us-gaap_MajorPropertyClassAxis = us-gaap_AssetsHeldForSaleMember |  |  |  |  |  |  |
KimPru and KimPru II [Member] |  |  |  |  |  |  |  |  |  |
Note 7 - Investment and Advances in Real Estate Joint Ventures (Details) [Line Items] |  |  |  |  |  |  |  |  |  |
Number of Joint Ventures | 4 kim_NumberOfJointVentures / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = kim_KimPruandKimPruIIMember |  |  |  |  |  |  |  | 4 kim_NumberOfJointVentures / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = kim_KimPruandKimPruIIMember |
Number of Accounts | 4 kim_NumberOfAccounts / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = kim_KimPruandKimPruIIMember |  |  |  |  |  |  |  | 4 kim_NumberOfAccounts / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = kim_KimPruandKimPruIIMember |
Number of Real Estate Properties | 60 us-gaap_NumberOfRealEstateProperties / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = kim_KimPruandKimPruIIMember | [1],[2] | 60 us-gaap_NumberOfRealEstateProperties / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = kim_KimPruandKimPruIIMember | [1],[2] |  |  |  |  | 60 us-gaap_NumberOfRealEstateProperties / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = kim_KimPruandKimPruIIMember | [1],[2]
Equity Method Investment, Ownership Percentage | 15.00%us-gaap_EquityMethodInvestmentOwnershipPercentage / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = kim_KimPruandKimPruIIMember | [1],[2] | 15.00%us-gaap_EquityMethodInvestmentOwnershipPercentage / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = kim_KimPruandKimPruIIMember | [1],[2] |  |  |  |  | 15.00%us-gaap_EquityMethodInvestmentOwnershipPercentage / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = kim_KimPruandKimPruIIMember | [1],[2]
Income (Loss) from Equity Method Investments | 8,100,000 us-gaap_IncomeLossFromEquityMethodInvestments / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = kim_KimPruandKimPruIIMember | [1] | 9,100,000 us-gaap_IncomeLossFromEquityMethodInvestments / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = kim_KimPruandKimPruIIMember | [1] | 7,400,000 us-gaap_IncomeLossFromEquityMethodInvestments / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = kim_KimPruandKimPruIIMember | [1] |  |  |  |
KimPru [Member] | Parent Company [Member] |  |  |  |  |  |  |  |  |  |
Note 7 - Investment and Advances in Real Estate Joint Ventures (Details) [Line Items] |  |  |  |  |  |  |  |  |  |
Impairment of Real Estate | 2,400,000 us-gaap_ImpairmentOfRealEstate / dei_LegalEntityAxis = us-gaap_ParentCompanyMember / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = kim_KimPruMember |  |  |  |  |  |  |  |  |
KimPru [Member] |  |  |  |  |  |  |  |  |  |
Note 7 - Investment and Advances in Real Estate Joint Ventures (Details) [Line Items] |  |  |  |  |  |  |  |  |  |
Number of Joint Ventures | 3 kim_NumberOfJointVentures / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = kim_KimPruMember |  |  |  |  |  |  |  | 3 kim_NumberOfJointVentures / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = kim_KimPruMember |
Impairment of Real Estate | 21,400,000 us-gaap_ImpairmentOfRealEstate / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = kim_KimPruMember |  |  |  |  |  |  |  |  |
Number of Real Estate Properties | 2 us-gaap_NumberOfRealEstateProperties / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = kim_KimPruMember |  |  |  |  |  |  |  | 2 us-gaap_NumberOfRealEstateProperties / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = kim_KimPruMember |
KIR [Member] | Minimum [Member] |  |  |  |  |  |  |  |  |  |
Note 7 - Investment and Advances in Real Estate Joint Ventures (Details) [Line Items] |  |  |  |  |  |  |  |  |  |
Percent of Income from Continuing Operations | 10.00%kim_PercentOfIncomeFromContinuingOperations / us-gaap_RangeAxis = us-gaap_MinimumMember / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = kim_KIRMember |  |  |  |  |  |  |  | 10.00%kim_PercentOfIncomeFromContinuingOperations / us-gaap_RangeAxis = us-gaap_MinimumMember / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = kim_KIRMember |
KIR [Member] | Maximum [Member] |  |  |  |  |  |  |  |  |  |
Note 7 - Investment and Advances in Real Estate Joint Ventures (Details) [Line Items] |  |  |  |  |  |  |  |  |  |
Percent of Income from Continuing Operations |  |  |  |  | 10.00%kim_PercentOfIncomeFromContinuingOperations / us-gaap_RangeAxis = us-gaap_MaximumMember / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = kim_KIRMember |  |  |  |  |
KIR [Member] | Parent Company [Member] |  |  |  |  |  |  |  |  |  |
Note 7 - Investment and Advances in Real Estate Joint Ventures (Details) [Line Items] |  |  |  |  |  |  |  |  |  |
Gains (Losses) on Sales of Investment Real Estate |  |  | 3,000,000 us-gaap_GainsLossesOnSalesOfInvestmentRealEstate / dei_LegalEntityAxis = us-gaap_ParentCompanyMember / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = kim_KIRMember |  |  |  |  |  |  |
KIR [Member] |  |  |  |  |  |  |  |  |  |
Note 7 - Investment and Advances in Real Estate Joint Ventures (Details) [Line Items] |  |  |  |  |  |  |  |  |  |
Number of Real Estate Properties | 54 us-gaap_NumberOfRealEstateProperties / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = kim_KIRMember | [2],[3] | 57 us-gaap_NumberOfRealEstateProperties / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = kim_KIRMember | [2],[3] |  |  |  |  | 54 us-gaap_NumberOfRealEstateProperties / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = kim_KIRMember | [2],[3]
Sales of Real Estate |  |  | 30,000,000 us-gaap_SalesOfRealEstate / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = kim_KIRMember |  |  |  |  |  |  |
Gains (Losses) on Sales of Investment Real Estate |  |  | 6,100,000 us-gaap_GainsLossesOnSalesOfInvestmentRealEstate / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = kim_KIRMember |  |  |  |  |  |  |
Equity Method Investment, Ownership Percentage | 48.60%us-gaap_EquityMethodInvestmentOwnershipPercentage / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = kim_KIRMember | [2],[3] | 48.60%us-gaap_EquityMethodInvestmentOwnershipPercentage / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = kim_KIRMember | [2],[3] |  |  |  |  | 48.60%us-gaap_EquityMethodInvestmentOwnershipPercentage / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = kim_KIRMember | [2],[3]
Income (Loss) from Equity Method Investments | 26,500,000 us-gaap_IncomeLossFromEquityMethodInvestments / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = kim_KIRMember | [3],[4] | 25,300,000 us-gaap_IncomeLossFromEquityMethodInvestments / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = kim_KIRMember | [3],[4] | 23,400,000 us-gaap_IncomeLossFromEquityMethodInvestments / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = kim_KIRMember | [3],[4] |  |  |  |
UBS Programs [Member] | Parent Company [Member] |  |  |  |  |  |  |  |  |  |
Note 7 - Investment and Advances in Real Estate Joint Ventures (Details) [Line Items] |  |  |  |  |  |  |  |  |  |
Impairment of Real Estate |  |  |  |  | 2,200,000 us-gaap_ImpairmentOfRealEstate / dei_LegalEntityAxis = us-gaap_ParentCompanyMember / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = kim_UBSProgramsMember |  |  |  |  |
UBS Programs [Member] | Blackstone [Member] |  |  |  |  |  |  |  |  |  |
Note 7 - Investment and Advances in Real Estate Joint Ventures (Details) [Line Items] |  |  |  |  |  |  |  |  |  |
Noncontrolling Interest, Ownership Percentage by Parent |  |  |  |  |  |  |  | 66.70%us-gaap_MinorityInterestOwnershipPercentageByParent / dei_LegalEntityAxis = kim_BlackstoneMember / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = kim_UBSProgramsMember |  |
UBS Programs [Member] |  |  |  |  |  |  |  |  |  |
Note 7 - Investment and Advances in Real Estate Joint Ventures (Details) [Line Items] |  |  |  |  |  |  |  |  |  |
Impairment of Real Estate |  |  |  |  | 13,000,000 us-gaap_ImpairmentOfRealEstate / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = kim_UBSProgramsMember |  |  |  |  |
Equity Method Investment, Ownership Percentage |  |  |  |  |  |  |  | 33.30%us-gaap_EquityMethodInvestmentOwnershipPercentage / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = kim_UBSProgramsMember |  |
Payments to Acquire Equity Method Investments |  |  |  |  |  |  |  | 1,100,000,000 us-gaap_PaymentsToAcquireEquityMethodInvestments / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = kim_UBSProgramsMember |  |
Kimstone [Member] |  |  |  |  |  |  |  |  |  |
Note 7 - Investment and Advances in Real Estate Joint Ventures (Details) [Line Items] |  |  |  |  |  |  |  |  |  |
Number of Real Estate Properties | 39 us-gaap_NumberOfRealEstateProperties / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = kim_KimstoneMember | [2],[5] | 39 us-gaap_NumberOfRealEstateProperties / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = kim_KimstoneMember | [2],[5] |  |  |  |  | 39 us-gaap_NumberOfRealEstateProperties / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = kim_KimstoneMember | [2],[5]
Equity Method Investment, Ownership Percentage | 33.30%us-gaap_EquityMethodInvestmentOwnershipPercentage / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = kim_KimstoneMember | [2],[5] | 33.30%us-gaap_EquityMethodInvestmentOwnershipPercentage / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = kim_KimstoneMember | [2],[5] |  |  |  |  | 33.30%us-gaap_EquityMethodInvestmentOwnershipPercentage / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = kim_KimstoneMember | [2],[5]
Noncontrolling Interest, Ownership Percentage by Parent |  |  |  |  |  |  |  | 33.30%us-gaap_MinorityInterestOwnershipPercentageByParent / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = kim_KimstoneMember |  |
Income (Loss) from Equity Method Investments | 2,000,000 us-gaap_IncomeLossFromEquityMethodInvestments / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = kim_KimstoneMember | [5] | 3,600,000 us-gaap_IncomeLossFromEquityMethodInvestments / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = kim_KimstoneMember | [5] |  | [5] |  |  |  |
BIG Shopping Centers [Member] | Operating Properties [Member] | Parent Company [Member] |  |  |  |  |  |  |  |  |  |
Note 7 - Investment and Advances in Real Estate Joint Ventures (Details) [Line Items] |  |  |  |  |  |  |  |  |  |
Number of Real Estate Properties | 7 us-gaap_NumberOfRealEstateProperties / dei_LegalEntityAxis = us-gaap_ParentCompanyMember / us-gaap_RealEstatePropertiesAxis = kim_OperatingPropertiesMember / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = kim_BIGShoppingCentersMember |  |  |  |  |  |  |  | 7 us-gaap_NumberOfRealEstateProperties / dei_LegalEntityAxis = us-gaap_ParentCompanyMember / us-gaap_RealEstatePropertiesAxis = kim_OperatingPropertiesMember / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = kim_BIGShoppingCentersMember |
Equity Method Investment, Ownership Percentage | 99.00%us-gaap_EquityMethodInvestmentOwnershipPercentage / dei_LegalEntityAxis = us-gaap_ParentCompanyMember / us-gaap_RealEstatePropertiesAxis = kim_OperatingPropertiesMember / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = kim_BIGShoppingCentersMember |  |  |  |  |  |  |  | 99.00%us-gaap_EquityMethodInvestmentOwnershipPercentage / dei_LegalEntityAxis = us-gaap_ParentCompanyMember / us-gaap_RealEstatePropertiesAxis = kim_OperatingPropertiesMember / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = kim_BIGShoppingCentersMember |
BIG Shopping Centers [Member] | Operating Properties [Member] | BIG [Member] |  |  |  |  |  |  |  |  |  |
Note 7 - Investment and Advances in Real Estate Joint Ventures (Details) [Line Items] |  |  |  |  |  |  |  |  |  |
Number of Real Estate Properties | 8 us-gaap_NumberOfRealEstateProperties / dei_LegalEntityAxis = kim_BIGMember / us-gaap_RealEstatePropertiesAxis = kim_OperatingPropertiesMember / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = kim_BIGShoppingCentersMember |  |  |  |  |  |  |  | 8 us-gaap_NumberOfRealEstateProperties / dei_LegalEntityAxis = kim_BIGMember / us-gaap_RealEstatePropertiesAxis = kim_OperatingPropertiesMember / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = kim_BIGShoppingCentersMember |
Equity Method Investment, Ownership Percentage | 99.00%us-gaap_EquityMethodInvestmentOwnershipPercentage / dei_LegalEntityAxis = kim_BIGMember / us-gaap_RealEstatePropertiesAxis = kim_OperatingPropertiesMember / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = kim_BIGShoppingCentersMember |  |  |  |  |  |  |  | 99.00%us-gaap_EquityMethodInvestmentOwnershipPercentage / dei_LegalEntityAxis = kim_BIGMember / us-gaap_RealEstatePropertiesAxis = kim_OperatingPropertiesMember / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = kim_BIGShoppingCentersMember |
BIG Shopping Centers [Member] | Operating Properties [Member] |  |  |  |  |  |  |  |  |  |
Note 7 - Investment and Advances in Real Estate Joint Ventures (Details) [Line Items] |  |  |  |  |  |  |  |  |  |
Number of Real Estate Properties | 21 us-gaap_NumberOfRealEstateProperties / us-gaap_RealEstatePropertiesAxis = kim_OperatingPropertiesMember / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = kim_BIGShoppingCentersMember |  |  |  |  |  |  |  | 21 us-gaap_NumberOfRealEstateProperties / us-gaap_RealEstatePropertiesAxis = kim_OperatingPropertiesMember / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = kim_BIGShoppingCentersMember |
Business Combination, Step Acquisition, Equity Interest in Acquiree, Remeasurement Gain | 19,700,000 us-gaap_BusinessCombinationStepAcquisitionEquityInterestInAcquireeRemeasurementGain / us-gaap_RealEstatePropertiesAxis = kim_OperatingPropertiesMember / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = kim_BIGShoppingCentersMember |  |  |  |  |  |  |  |  |
BIG Shopping Centers [Member] | Parent Company [Member] |  |  |  |  |  |  |  |  |  |
Note 7 - Investment and Advances in Real Estate Joint Ventures (Details) [Line Items] |  |  |  |  |  |  |  |  |  |
Gains (Losses) on Extinguishment of Debt |  |  | 2,400,000 us-gaap_GainsLossesOnExtinguishmentOfDebt / dei_LegalEntityAxis = us-gaap_ParentCompanyMember / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = kim_BIGShoppingCentersMember |  |  |  |  |  |  |
BIG Shopping Centers [Member] |  |  |  |  |  |  |  |  |  |
Note 7 - Investment and Advances in Real Estate Joint Ventures (Details) [Line Items] |  |  |  |  |  |  |  |  |  |
Number of Real Estate Properties | 6 us-gaap_NumberOfRealEstateProperties / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = kim_BIGShoppingCentersMember | [2],[6],[7] | 21 us-gaap_NumberOfRealEstateProperties / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = kim_BIGShoppingCentersMember | [2],[6],[7] |  |  |  |  | 6 us-gaap_NumberOfRealEstateProperties / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = kim_BIGShoppingCentersMember | [2],[6],[7]
Equity Method Investment, Ownership Percentage | 50.10%us-gaap_EquityMethodInvestmentOwnershipPercentage / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = kim_BIGShoppingCentersMember | [2],[6],[7] | 37.90%us-gaap_EquityMethodInvestmentOwnershipPercentage / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = kim_BIGShoppingCentersMember | [2],[6],[7] |  |  |  |  | 50.10%us-gaap_EquityMethodInvestmentOwnershipPercentage / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = kim_BIGShoppingCentersMember | [2],[6],[7]
Gains (Losses) on Extinguishment of Debt |  |  | 13,700,000 us-gaap_GainsLossesOnExtinguishmentOfDebt / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = kim_BIGShoppingCentersMember |  |  |  |  |  |  |
Income (Loss) from Equity Method Investments | 22,500,000 us-gaap_IncomeLossFromEquityMethodInvestments / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = kim_BIGShoppingCentersMember | [6] | 3,000,000 us-gaap_IncomeLossFromEquityMethodInvestments / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = kim_BIGShoppingCentersMember | [6] | (3,700,000)us-gaap_IncomeLossFromEquityMethodInvestments / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = kim_BIGShoppingCentersMember | [6] |  |  |  |
CPP [Member] |  |  |  |  |  |  |  |  |  |
Note 7 - Investment and Advances in Real Estate Joint Ventures (Details) [Line Items] |  |  |  |  |  |  |  |  |  |
Number of Real Estate Properties | 7 us-gaap_NumberOfRealEstateProperties / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = kim_CPPMember | [2],[8] | 6 us-gaap_NumberOfRealEstateProperties / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = kim_CPPMember | [2],[8] |  |  |  |  | 7 us-gaap_NumberOfRealEstateProperties / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = kim_CPPMember | [2],[8]
Equity Method Investment, Ownership Percentage | 55.00%us-gaap_EquityMethodInvestmentOwnershipPercentage / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = kim_CPPMember | [2],[8] | 55.00%us-gaap_EquityMethodInvestmentOwnershipPercentage / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = kim_CPPMember | [2],[8] |  |  |  |  | 55.00%us-gaap_EquityMethodInvestmentOwnershipPercentage / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = kim_CPPMember | [2],[8]
Payments to Acquire Real Estate | 62,800,000 us-gaap_PaymentsToAcquireRealEstate / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = kim_CPPMember |  |  |  |  |  |  |  |  |
Income (Loss) from Equity Method Investments | 7,100,000 us-gaap_IncomeLossFromEquityMethodInvestments / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = kim_CPPMember |  | 5,800,000 us-gaap_IncomeLossFromEquityMethodInvestments / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = kim_CPPMember |  | 5,300,000 us-gaap_IncomeLossFromEquityMethodInvestments / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = kim_CPPMember |  |  |  |  |
Kimco Income Fund [Member] |  |  |  |  |  |  |  |  |  |
Note 7 - Investment and Advances in Real Estate Joint Ventures (Details) [Line Items] |  |  |  |  |  |  |  |  |  |
Number of Real Estate Properties |  | [2],[9] | 12 us-gaap_NumberOfRealEstateProperties / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = kim_KimcoIncomeFundMember | [2],[9] |  |  |  |  |  | [2],[9]
Equity Method Investment, Ownership Percentage |  | [2],[9] | 39.50%us-gaap_EquityMethodInvestmentOwnershipPercentage / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = kim_KimcoIncomeFundMember | [2],[9] |  |  |  |  |  | [2],[9]
Payments to Acquire Equity Method Investments | 408,000,000 us-gaap_PaymentsToAcquireEquityMethodInvestments / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = kim_KimcoIncomeFundMember |  |  |  |  |  |  |  |  |
Income (Loss) from Equity Method Investments | 900,000 us-gaap_IncomeLossFromEquityMethodInvestments / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = kim_KimcoIncomeFundMember | [9] | 3,300,000 us-gaap_IncomeLossFromEquityMethodInvestments / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = kim_KimcoIncomeFundMember | [9] | 1,700,000 us-gaap_IncomeLossFromEquityMethodInvestments / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = kim_KimcoIncomeFundMember | [9] |  |  |  |
Other Institutional Programs [Member] | Operating Properties [Member] |  |  |  |  |  |  |  |  |  |
Note 7 - Investment and Advances in Real Estate Joint Ventures (Details) [Line Items] |  |  |  |  |  |  |  |  |  |
Sales of Real Estate |  |  |  |  | 127,000,000 us-gaap_SalesOfRealEstate / us-gaap_RealEstatePropertiesAxis = kim_OperatingPropertiesMember / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = kim_OtherInstitutionalProgramsMember |  |  |  |  |
Other Income |  |  |  |  | 1,100,000 us-gaap_OtherIncome / us-gaap_RealEstatePropertiesAxis = kim_OperatingPropertiesMember / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = kim_OtherInstitutionalProgramsMember |  |  |  |  |
Other Institutional Programs [Member] |  |  |  |  |  |  |  |  |  |
Note 7 - Investment and Advances in Real Estate Joint Ventures (Details) [Line Items] |  |  |  |  |  |  |  |  |  |
Number of Real Estate Properties | 50 us-gaap_NumberOfRealEstateProperties / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = kim_OtherInstitutionalProgramsMember | [10],[11],[2] | 56 us-gaap_NumberOfRealEstateProperties / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = kim_OtherInstitutionalProgramsMember | [10],[11],[2] |  |  |  |  | 50 us-gaap_NumberOfRealEstateProperties / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = kim_OtherInstitutionalProgramsMember | [10],[11],[2]
Equity Method Investment, Ownership Percentage |  | [10],[11],[2] |  | [10],[11],[2] |  |  |  |  |  | [10],[11],[2]
Payments to Acquire Equity Method Investments | 3,000,000 us-gaap_PaymentsToAcquireEquityMethodInvestments / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = kim_OtherInstitutionalProgramsMember |  |  |  |  |  |  |  |  |
Income (Loss) from Equity Method Investments | 2,600,000 us-gaap_IncomeLossFromEquityMethodInvestments / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = kim_OtherInstitutionalProgramsMember | [10],[11],[12],[13] | 3,200,000 us-gaap_IncomeLossFromEquityMethodInvestments / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = kim_OtherInstitutionalProgramsMember | [10],[11],[12],[13] | 5,500,000 us-gaap_IncomeLossFromEquityMethodInvestments / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = kim_OtherInstitutionalProgramsMember | [10],[11],[12],[13] |  |  |  |
RioCan [Member] | Minimum [Member] |  |  |  |  |  |  |  |  |  |
Note 7 - Investment and Advances in Real Estate Joint Ventures (Details) [Line Items] |  |  |  |  |  |  |  |  |  |
Percent of Income from Continuing Operations | 10.00%kim_PercentOfIncomeFromContinuingOperations / us-gaap_RangeAxis = us-gaap_MinimumMember / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = kim_RioCanMember |  |  |  |  |  |  |  | 10.00%kim_PercentOfIncomeFromContinuingOperations / us-gaap_RangeAxis = us-gaap_MinimumMember / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = kim_RioCanMember |
RioCan [Member] | Operating Properties [Member] |  |  |  |  |  |  |  |  |  |
Note 7 - Investment and Advances in Real Estate Joint Ventures (Details) [Line Items] |  |  |  |  |  |  |  |  |  |
Number of Real Estate Properties |  |  |  |  | 1 us-gaap_NumberOfRealEstateProperties / us-gaap_RealEstatePropertiesAxis = kim_OperatingPropertiesMember / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = kim_RioCanMember |  |  |  |  |
RioCan [Member] |  |  |  |  |  |  |  |  |  |
Note 7 - Investment and Advances in Real Estate Joint Ventures (Details) [Line Items] |  |  |  |  |  |  |  |  |  |
Number of Joint Ventures | 3 kim_NumberOfJointVentures / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = kim_RioCanMember |  |  |  |  |  |  |  | 3 kim_NumberOfJointVentures / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = kim_RioCanMember |
Number of Real Estate Properties | 45 us-gaap_NumberOfRealEstateProperties / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = kim_RioCanMember |  | 45 us-gaap_NumberOfRealEstateProperties / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = kim_RioCanMember |  |  |  |  |  | 45 us-gaap_NumberOfRealEstateProperties / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = kim_RioCanMember |
Equity Method Investment, Ownership Percentage | 50.00%us-gaap_EquityMethodInvestmentOwnershipPercentage / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = kim_RioCanMember |  | 50.00%us-gaap_EquityMethodInvestmentOwnershipPercentage / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = kim_RioCanMember |  |  |  |  |  | 50.00%us-gaap_EquityMethodInvestmentOwnershipPercentage / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = kim_RioCanMember |
Real Estate Partnership Investment Subsidiaries, Net Income (Loss) before Tax |  |  |  |  | 7,500,000 us-gaap_RealEstatePartnershipInvestmentSubsidiariesNetIncomeLossBeforeTax / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = kim_RioCanMember |  |  |  |  |
Real Estate Tax Expense |  |  |  |  | 1,500,000 us-gaap_RealEstateTaxExpense / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = kim_RioCanMember |  |  |  |  |
Income (Loss) from Equity Method Investments | 30,600,000 us-gaap_IncomeLossFromEquityMethodInvestments / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = kim_RioCanMember | [14] | 27,600,000 us-gaap_IncomeLossFromEquityMethodInvestments / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = kim_RioCanMember | [14] | 30,400,000 us-gaap_IncomeLossFromEquityMethodInvestments / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = kim_RioCanMember | [14] |  |  |  |
Other Joint Venture Programs [Member] | Operating Properties [Member] | MEXICO |  |  |  |  |  |  |  |  |  |
Note 7 - Investment and Advances in Real Estate Joint Ventures (Details) [Line Items] |  |  |  |  |  |  |  |  |  |
Impairment of Real Estate |  |  | 9,400,000 us-gaap_ImpairmentOfRealEstate / us-gaap_RealEstatePropertiesAxis = kim_OperatingPropertiesMember / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = kim_OtherJointVentureProgramsMember / us-gaap_StatementGeographicalAxis = country_MX |  |  |  |  |  |  |
Number of Real Estate Properties |  |  | 10 us-gaap_NumberOfRealEstateProperties / us-gaap_RealEstatePropertiesAxis = kim_OperatingPropertiesMember / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = kim_OtherJointVentureProgramsMember / us-gaap_StatementGeographicalAxis = country_MX |  |  |  |  |  |  |
Sales of Real Estate |  |  | 603,500,000 us-gaap_SalesOfRealEstate / us-gaap_RealEstatePropertiesAxis = kim_OperatingPropertiesMember / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = kim_OtherJointVentureProgramsMember / us-gaap_StatementGeographicalAxis = country_MX |  |  |  |  |  |  |
Income Tax Expense (Benefit) |  |  | 25,100,000 us-gaap_IncomeTaxExpenseBenefit / us-gaap_RealEstatePropertiesAxis = kim_OperatingPropertiesMember / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = kim_OtherJointVentureProgramsMember / us-gaap_StatementGeographicalAxis = country_MX |  |  |  |  |  |  |
Release of Liability of Debt From Sale |  |  | 301,200,000 kim_ReleaseOfLiabilityOfDebtFromSale / us-gaap_RealEstatePropertiesAxis = kim_OperatingPropertiesMember / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = kim_OtherJointVentureProgramsMember / us-gaap_StatementGeographicalAxis = country_MX |  |  |  |  |  |  |
Gain (Loss) on Sale of Properties, before Applicable Income Taxes |  |  | 78,200,000 us-gaap_GainLossOnSaleOfPropertiesBeforeApplicableIncomeTaxes / us-gaap_RealEstatePropertiesAxis = kim_OperatingPropertiesMember / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = kim_OtherJointVentureProgramsMember / us-gaap_StatementGeographicalAxis = country_MX |  |  |  |  |  |  |
Other Joint Venture Programs [Member] | Operating Properties [Member] | Parent Company [Member] |  |  |  |  |  |  |  |  |  |
Note 7 - Investment and Advances in Real Estate Joint Ventures (Details) [Line Items] |  |  |  |  |  |  |  |  |  |
Gains (Losses) on Sales of Investment Real Estate | 2,200,000 us-gaap_GainsLossesOnSalesOfInvestmentRealEstate / dei_LegalEntityAxis = us-gaap_ParentCompanyMember / us-gaap_RealEstatePropertiesAxis = kim_OperatingPropertiesMember / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = kim_OtherJointVentureProgramsMember |  |  |  |  |  |  |  |  |
Other Joint Venture Programs [Member] | Operating Properties [Member] |  |  |  |  |  |  |  |  |  |
Note 7 - Investment and Advances in Real Estate Joint Ventures (Details) [Line Items] |  |  |  |  |  |  |  |  |  |
Number of Joint Ventures | 2 kim_NumberOfJointVentures / us-gaap_RealEstatePropertiesAxis = kim_OperatingPropertiesMember / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = kim_OtherJointVentureProgramsMember |  |  |  |  |  |  |  | 2 kim_NumberOfJointVentures / us-gaap_RealEstatePropertiesAxis = kim_OperatingPropertiesMember / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = kim_OtherJointVentureProgramsMember |
Impairment of Real Estate |  |  | 1,500,000 us-gaap_ImpairmentOfRealEstate / us-gaap_RealEstatePropertiesAxis = kim_OperatingPropertiesMember / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = kim_OtherJointVentureProgramsMember |  |  |  |  |  |  |
Sales of Real Estate | 46,500,000 us-gaap_SalesOfRealEstate / us-gaap_RealEstatePropertiesAxis = kim_OperatingPropertiesMember / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = kim_OtherJointVentureProgramsMember |  | 132,100,000 us-gaap_SalesOfRealEstate / us-gaap_RealEstatePropertiesAxis = kim_OperatingPropertiesMember / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = kim_OtherJointVentureProgramsMember |  |  |  |  |  |  |
Gains (Losses) on Sales of Investment Real Estate | 11,100,000 us-gaap_GainsLossesOnSalesOfInvestmentRealEstate / us-gaap_RealEstatePropertiesAxis = kim_OperatingPropertiesMember / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = kim_OtherJointVentureProgramsMember |  | 6,100,000 us-gaap_GainsLossesOnSalesOfInvestmentRealEstate / us-gaap_RealEstatePropertiesAxis = kim_OperatingPropertiesMember / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = kim_OtherJointVentureProgramsMember |  |  |  |  |  |  |
Income (Loss) from Equity Method Investments | 15,400,000 us-gaap_IncomeLossFromEquityMethodInvestments / us-gaap_RealEstatePropertiesAxis = kim_OperatingPropertiesMember / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = kim_OtherJointVentureProgramsMember |  |  |  |  |  |  |  |  |
Other Joint Venture Programs [Member] | MEXICO |  |  |  |  |  |  |  |  |  |
Note 7 - Investment and Advances in Real Estate Joint Ventures (Details) [Line Items] |  |  |  |  |  |  |  |  |  |
Number of Real Estate Properties |  |  | 84 us-gaap_NumberOfRealEstateProperties / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = kim_OtherJointVentureProgramsMember / us-gaap_StatementGeographicalAxis = country_MX |  |  |  |  |  |  |
Other Joint Venture Programs [Member] | Parent Company [Member] |  |  |  |  |  |  |  |  |  |
Note 7 - Investment and Advances in Real Estate Joint Ventures (Details) [Line Items] |  |  |  |  |  |  |  |  |  |
Impairment of Real Estate |  |  |  |  | 6,400,000 us-gaap_ImpairmentOfRealEstate / dei_LegalEntityAxis = us-gaap_ParentCompanyMember / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = kim_OtherJointVentureProgramsMember |  |  |  |  |
Gains (Losses) on Sales of Investment Real Estate | 31,700,000 us-gaap_GainsLossesOnSalesOfInvestmentRealEstate / dei_LegalEntityAxis = us-gaap_ParentCompanyMember / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = kim_OtherJointVentureProgramsMember |  |  |  |  |  |  |  |  |
Other Joint Venture Programs [Member] |  |  |  |  |  |  |  |  |  |
Note 7 - Investment and Advances in Real Estate Joint Ventures (Details) [Line Items] |  |  |  |  |  |  |  |  |  |
Number of Joint Ventures |  |  | 2 kim_NumberOfJointVentures / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = kim_OtherJointVentureProgramsMember |  | 3 kim_NumberOfJointVentures / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = kim_OtherJointVentureProgramsMember |  |  |  |  |
Impairment of Real Estate |  |  |  |  | 12,800,000 us-gaap_ImpairmentOfRealEstate / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = kim_OtherJointVentureProgramsMember |  |  |  |  |
Number of Real Estate Properties | 60 us-gaap_NumberOfRealEstateProperties / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = kim_OtherJointVentureProgramsMember | [15],[16] | 75 us-gaap_NumberOfRealEstateProperties / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = kim_OtherJointVentureProgramsMember | [15],[16] |  |  |  |  | 60 us-gaap_NumberOfRealEstateProperties / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = kim_OtherJointVentureProgramsMember | [15],[16]
Sales of Real Estate |  |  | 228,800,000 us-gaap_SalesOfRealEstate / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = kim_OtherJointVentureProgramsMember |  | 118,000,000 us-gaap_SalesOfRealEstate / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = kim_OtherJointVentureProgramsMember |  |  |  |  |
Gains (Losses) on Sales of Investment Real Estate | 62,900,000 us-gaap_GainsLossesOnSalesOfInvestmentRealEstate / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = kim_OtherJointVentureProgramsMember |  |  |  | 8,300,000 us-gaap_GainsLossesOnSalesOfInvestmentRealEstate / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = kim_OtherJointVentureProgramsMember |  |  |  |  |
Equity Method Investment, Ownership Percentage |  | [15],[16] |  | [15],[16] |  |  |  |  |  | [15],[16]
Income (Loss) from Equity Method Investments | 62,300,000 us-gaap_IncomeLossFromEquityMethodInvestments / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = kim_OtherJointVentureProgramsMember | [15],[16],[17],[18],[19],[20],[21],[22],[23] | 23,600,000 us-gaap_IncomeLossFromEquityMethodInvestments / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = kim_OtherJointVentureProgramsMember | [15],[16],[17],[18],[19],[20],[21],[22],[23] | 26,400,000 us-gaap_IncomeLossFromEquityMethodInvestments / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = kim_OtherJointVentureProgramsMember | [15],[16],[17],[18],[19],[20],[21],[22],[23] |  |  |  |
Other Liabilities | 40,300,000 us-gaap_OtherLiabilities / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = kim_OtherJointVentureProgramsMember |  | 41,500,000 us-gaap_OtherLiabilities / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = kim_OtherJointVentureProgramsMember |  |  |  |  |  | 40,300,000 us-gaap_OtherLiabilities / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = kim_OtherJointVentureProgramsMember |
Intown [Member] |  |  |  |  |  |  |  |  |  |
Note 7 - Investment and Advances in Real Estate Joint Ventures (Details) [Line Items] |  |  |  |  |  |  |  |  |  |
Sales of Real Estate |  |  |  |  |  |  |  | 735,000,000 us-gaap_SalesOfRealEstate / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = kim_IntownMember |  |
Transfer Mortgage Payable |  |  |  |  |  |  |  | 609,200,000 us-gaap_TransferMortgagePayable / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = kim_IntownMember |  |
Deferred Gain on Sale of Property |  |  |  |  |  |  |  | 21,700,000 us-gaap_DeferredGainOnSaleOfProperty / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = kim_IntownMember |  |
Guarantor Obligations, Current Carrying Value | 139,700,000 us-gaap_GuaranteeObligationsCurrentCarryingValue / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = kim_IntownMember |  | 139,700,000 us-gaap_GuaranteeObligationsCurrentCarryingValue / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = kim_IntownMember |  |  |  |  |  | 139,700,000 us-gaap_GuaranteeObligationsCurrentCarryingValue / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = kim_IntownMember |
Maximum [Member] |  |  |  |  |  |  |  |  |  |
Note 7 - Investment and Advances in Real Estate Joint Ventures (Details) [Line Items] |  |  |  |  |  |  |  |  |  |
Noncontrolling Interest, Ownership Percentage by Parent | 100.00%us-gaap_MinorityInterestOwnershipPercentageByParent / us-gaap_RangeAxis = us-gaap_MaximumMember |  |  |  |  |  |  |  | 100.00%us-gaap_MinorityInterestOwnershipPercentageByParent / us-gaap_RangeAxis = us-gaap_MaximumMember |
Operating Properties [Member] | MEXICO |  |  |  |  |  |  |  |  |  |
Note 7 - Investment and Advances in Real Estate Joint Ventures (Details) [Line Items] |  |  |  |  |  |  |  |  |  |
Sales of Real Estate | 324,500,000 us-gaap_SalesOfRealEstate / us-gaap_RealEstatePropertiesAxis = kim_OperatingPropertiesMember / us-gaap_StatementGeographicalAxis = country_MX |  |  |  |  |  |  |  |  |
Gains (Losses) on Sales of Investment Real Estate | 39,100,000 us-gaap_GainsLossesOnSalesOfInvestmentRealEstate / us-gaap_RealEstatePropertiesAxis = kim_OperatingPropertiesMember / us-gaap_StatementGeographicalAxis = country_MX |  |  |  |  |  |  |  |  |
Income Tax Expense (Benefit) | 9,000,000 us-gaap_IncomeTaxExpenseBenefit / us-gaap_RealEstatePropertiesAxis = kim_OperatingPropertiesMember / us-gaap_StatementGeographicalAxis = country_MX |  |  |  |  |  |  |  |  |
Operating Properties [Member] | Mexico and Chile [Member] |  |  |  |  |  |  |  |  |  |
Note 7 - Investment and Advances in Real Estate Joint Ventures (Details) [Line Items] |  |  |  |  |  |  |  |  |  |
Sales of Real Estate |  |  | 341,900,000 us-gaap_SalesOfRealEstate / us-gaap_RealEstatePropertiesAxis = kim_OperatingPropertiesMember / us-gaap_StatementGeographicalAxis = kim_MexicoandChileMember |  |  |  |  |  |  |
Gains (Losses) on Sales of Investment Real Estate |  |  | 22,900,000 us-gaap_GainsLossesOnSalesOfInvestmentRealEstate / us-gaap_RealEstatePropertiesAxis = kim_OperatingPropertiesMember / us-gaap_StatementGeographicalAxis = kim_MexicoandChileMember |  |  |  |  |  |  |
Operating Properties [Member] |  |  |  |  |  |  |  |  |  |
Note 7 - Investment and Advances in Real Estate Joint Ventures (Details) [Line Items] |  |  |  |  |  |  |  |  |  |
Number of Real Estate Properties | 4 us-gaap_NumberOfRealEstateProperties / us-gaap_RealEstatePropertiesAxis = kim_OperatingPropertiesMember |  |  |  |  |  |  |  | 4 us-gaap_NumberOfRealEstateProperties / us-gaap_RealEstatePropertiesAxis = kim_OperatingPropertiesMember |
Payments to Acquire Equity Method Investments | 116,200,000 us-gaap_PaymentsToAcquireEquityMethodInvestments / us-gaap_RealEstatePropertiesAxis = kim_OperatingPropertiesMember |  |  |  |  |  |  |  |  |
MEXICO |  |  |  |  |  |  |  |  |  |
Note 7 - Investment and Advances in Real Estate Joint Ventures (Details) [Line Items] |  |  |  |  |  |  |  |  |  |
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Gain (Loss), before Reclassification and Tax |  |  |  |  |  |  |  |  | $ (47,300,000)us-gaap_OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationGainLossBeforeReclassificationAndTax / us-gaap_StatementGeographicalAxis = country_MX |
[1] | This venture represents four separate joint ventures, with four separate accounts managed by Prudential Real Estate Investors ("PREI"), three of these ventures are collectively referred to as KimPru and the remaining venture is referred to as KimPru II. During the year ended December 31, 2014, KimPru recognized impairment charges of $21.4 million related to the decline in value of two operating properties. The Company had previously taken other-than-temporary impairment charges on its investment in KimPru and had allocated these impairment charges to the underlying assets of the KimPru joint ventures including a portion to these operating properties. As such, the Company's share of these impairment charges was $2.4 million.
[2] | The Company manages these joint venture investments and, where applicable, earns acquisition fees, leasing commissions, property management fees, asset management fees and construction management fees.
[3] | During the year ended December 31, 2014 KIR, (i) sold two operating properties for a sales price of $17.7 million, for which the Company recognized its share of an aggregate net gain of $1.1 million, (ii) recognized aggregate impairment charges of $5.0 million, of which the Company's share was $2.8 million, related to two properties which KIR anticipates selling within the next year and therefore effectively shortened its anticipated hold period for these assets which resulted in the expected future cash flows being less than the carrying value and (iii) sold one of the impaired properties for a sales price of $2.0 million.
[4] | During the year ended December 31, 2013, KIR sold an operating property in Cincinnati, OH for a sales price of $30.0 million and recognized a gain of $6.1 million. The Company's share of this gain was $3.0 million.
[5] | During June 2013, the Company increased its ownership interest in the UBS Programs to 33.3% and simultaneously UBS transferred its remaining 66.7% ownership interest in the UBS Programs to affiliates of Blackstone Real Estate Partners VII ("Blackstone"). Both of these transactions were based on a gross purchase price of $1.1 billion. Upon completion of these transactions, Blackstone and the Company entered into a new joint venture (Kimstone) in which the Company owns a 33.3% noncontrolling interest. On February 2, 2015, the Company purchased the remaining 66.7% interest in the 39-property Kimstone portfolio from Blackstone for a gross purchase price of $1.4 billion, including the assumption of $638.0 million in mortgage debt (see Footnote 26 of the Notes to Consolidated Financial Statements).
[6] | During the year ended December 31, 2014, the Company and their joint venture partner BIG divided 15 of the 21 properties in the BIG Shopping Centers venture with the Company receiving a 99% ownership interest in seven operating properties and BIG receiving a 99% ownership interest in eight operating properties. The Company recognized a gain of $19.7 million on the properties where BIG obtained a 99% interest (see Footnote 3 of the Notes to Consolidated Financial Statements). Subsequent to this transaction the BIG Shopping Centers venture continues to hold six operating properties. During the year ended December 31, 2013, BIG recognized a gain on early extinguishment of debt of $13.7 million related to a property that was foreclosed on by a third party lender. The Company's share of this gain was $2.4 million.
[7] | Ownership % is a blended rate
[8] | During the year ended December 31, 2014, CPP acquired land parcels in Dania, FL, for $62.8 million. These land parcels will be developed into a retail center.
[9] | During the year ended December 31, 2014, the Company purchased the remaining interest in KIF based on a gross purchase price of $408.0 million (see Footnote 3 of the Notes to Consolidated Financial Statements).
[10] | During the year ended December 31, 2014, the Company acquired four properties from a joint venture in which the Company has a noncontrolling interest for a total sales price of $116.2 million (see Footnote 3 of the Notes to Consolidated Financial Statements).
[11] | During the year ended December 31, 2014, two joint ventures in which the Company holds a noncontrolling interest sold two operating properties for an aggregate sales price of $46.6 million and recognized an aggregate gain of $11.1 million. The Company's share of this gain was $2.2 million.
[12] | During the year ended December 31, 2012, a joint venture in which the Company holds a noncontrolling interest sold two encumbered operating properties to the Company for an aggregate sales price of $75.5 million. As a result of this transaction, the Company recognized promote income of $2.6 million. Additionally, another joint venture in which the Company holds a noncontrolling interest sold an operating property to the Company for a sales price of $127.0 million. As a result of this transaction, the Company recognized promote income of $1.1 million.
[13] | During the year ended December 31, 2012, the UBS Program recognized impairment charges of $13.0 million related to the sale of two properties. The Company's share of these impairment charges was $2.2 million.
[14] | During the year ended December 31, 2012, the Company recognized income of $7.5 million, before taxes of $1.5 million, from the sale of certain air rights at one of the properties in the RioCan portfolio.
[15] | During the year ended December 31, 2014, a joint venture in which the Company holds a noncontrolling interest sold 16 operating properties for an aggregate sales price of $199.5 million and recognized an aggregate gain of $62.9 million. The Company's share of this gain was $31.7 million.
[16] | During the year ended December 31, 2014, the Company acquired a partners' interest in a joint venture in which the Company had a noncontrolling interest for a total price of $3.0 million (see Footnote 3 of the Notes to Consolidated Financial Statements).
[17] | During the year ended December 31, 2014, the Company received a distribution of $15.4 million from a joint venture that was in excess of its carrying value and as such, the Company recognized this amount as equity in income.
[18] | During the year ended December 31, 2014, two joint ventures in which the Company holds a noncontrolling interest sold two operating properties for an aggregate sales price of $46.5 million and recognized an aggregate gain of $11.1 million. The Company's share of this gain was $2.2 million.
[19] | During June 2013, the Intown portfolio was sold for a sales price of $735.0 million which included the assignment of $609.2 million in debt. This transaction resulted in a deferred gain to the Company of $21.7 million. The Company maintains its guarantee on a portion of the debt ($139.7 million as of December 31, 2014 and 2013) assumed by the buyer. Due to this continued involvement, the Company deferred its gain until such time that the guarantee and commitment expire. On February 24, 2015, the outstanding debt balance of $139.7 million was fully repaid and as such, the Company was relieved of its related commitments and guarantee. As a result, the Company will recognize the deferred gain of $21.7 million during the first quarter of 2015 (see Footnote 19 of the Notes to Consolidated Financial Statements).
[20] | During the year ended December 31, 2013, two joint ventures in which the Company held noncontrolling interests sold two operating properties to the Company, in separate transactions, for an aggregate price of $228.8 million (see Footnote 3 of the Notes to Consolidated Financial Statements).
[21] | During the year ended December 31, 2013, joint ventures in which the Company has noncontrolling interests sold six operating properties, in separate transactions, for an aggregate sales price of $132.1 million. In connection with these transactions, the Company recognized its share of the aggregate gains of $6.1 million and aggregate impairment charges of $1.5 million.
[22] | During the year ended December 31, 2012, two joint ventures in which the Company holds noncontrolling interests sold two properties, in separate transactions, for an aggregate sales price of $118.0 million. The Company's share of the aggregate gain related to these transactions was $8.3 million.
[23] | During the year ended December 31, 2012, three joint ventures in which the Company has noncontrolling interests recognized aggregate impairment charges of $12.8 million related to the sale of one operating property, the pending sale of one property and the potential foreclosure of another property. The Company's share of these impairment charges was $6.4 million.

X
- Details
Name: | kim_Note7InvestmentandAdvancesinRealEstateJointVenturesDetailsLineItems
Namespace Prefix: | kim_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition No authoritative reference available. + References No definition available. + Details
Name: | kim_NumberOfAccounts
Namespace Prefix: | kim_
Data Type: | xbrli:decimalItemType
Balance Type: | na
Period Type: | instant

X
- Definition No authoritative reference available. + References No definition available. + Details
Name: | kim_NumberOfJointVentures
Namespace Prefix: | kim_
Data Type: | xbrli:decimalItemType
Balance Type: | na
Period Type: | instant

X
- Definition No authoritative reference available. + References No definition available. + Details
Name: | kim_PercentOfIncomeFromContinuingOperations
Namespace Prefix: | kim_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Release of liability of debt from sale. + References No definition available. + Details
Name: | kim_ReleaseOfLiabilityOfDebtFromSale
Namespace Prefix: | kim_
Data Type: | xbrli:monetaryItemType
Balance Type: | na
Period Type: | duration

X
- Definition Percentage of voting equity interests acquired at the acquisition date in the business combination. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=25497992&loc=d3e1392-128463 + Details
Name: | us-gaap_BusinessAcquisitionPercentageOfVotingInterestsAcquired
Namespace Prefix: | us-gaap_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Amount of consideration transferred, consisting of acquisition-date fair value of assets transferred by the acquirer, liabilities incurred by the acquirer, and equity interest issued by the acquirer. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 30 -Section 30 -Paragraph 7 -URI http://asc.fasb.org/extlink&oid=6911251&loc=d3e6578-128477 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 30 -Section 30 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=6911251&loc=d3e6613-128477 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 30 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=35744584&loc=d3e6927-128479 + Details
Name: | us-gaap_BusinessCombinationConsiderationTransferred1
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Amount of long-term debt due after one year or the normal operating cycle, if longer, assumed at the acquisition date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=39739317&loc=d3e4845-128472 + Details
Name: | us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNoncurrentLiabilitiesLongTermDebt
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition In a business combination achieved in stages, this element represents the amount of gain recognized by the entity as a result of remeasuring to fair value the equity interest in the acquiree it held before the business combination. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (g)(2) -URI http://asc.fasb.org/extlink&oid=25497992&loc=d3e1392-128463 + Details
Name: | us-gaap_BusinessCombinationStepAcquisitionEquityInterestInAcquireeRemeasurementGain
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Amount of gain on the sale of property that does not qualify for gain recognition as of the balance sheet date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 605 -SubTopic 40 -Section S99 -Paragraph 1 -Subparagraph (SAB TOPIC 5.U.Q2) -URI http://asc.fasb.org/extlink&oid=6955272&loc=d3e221323-122791 + Details
Name: | us-gaap_DeferredGainOnSaleOfProperty
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 323 -SubTopic 10 -Section 50 -Paragraph 3 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=6382943&loc=d3e33918-111571 + Details
Name: | us-gaap_EquityMethodInvestmentOwnershipPercentage
Namespace Prefix: | us-gaap_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition This item represents the carrying amount on the entity's balance sheet of its investment in common stock of an equity method investee. This is not an indicator of the fair value of the investment, rather it is the initial cost adjusted for the entity's share of earnings and losses of the investee, adjusted for any distributions (dividends) and other than temporary impairment (OTTI) losses recognized. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.12) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 323 -SubTopic 10 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=35755396&loc=d3e33749-111570 + Details
Name: | us-gaap_EquityMethodInvestments
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition This element represents the amount of gain (loss) on sale of properties during the reporting period gross of the applicable income taxes realized. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 974 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.3-15.(a)(1)(ii) -URI http://asc.fasb.org/extlink&oid=6875705&loc=d3e641549-123027 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 15 -Paragraph a -Subparagraph 1(ii) -Article 3 + Details
Name: | us-gaap_GainLossOnSaleOfPropertiesBeforeApplicableIncomeTaxes
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Difference between the fair value of payments made and the carrying amount of debt which is extinguished prior to maturity. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3602-108585 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 50 -Section 40 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6850294&loc=d3e12317-112629 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 50 -Section 40 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=6850294&loc=d3e12355-112629 + Details
Name: | us-gaap_GainsLossesOnExtinguishmentOfDebt
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition The net gain (loss) resulting from sales and other disposals of real estate owned for investment purposes. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 225 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-04.14(d)) -URI http://asc.fasb.org/extlink&oid=6879574&loc=d3e536633-122882 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Paragraph 14 -Subparagraph d -Article 9 + Details
Name: | us-gaap_GainsLossesOnSalesOfInvestmentRealEstate
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition The current carrying amount of the liability for the freestanding or embedded guarantor's obligations under the guarantee or each group of similar guarantees. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 460 -SubTopic 10 -Section 50 -Paragraph 4 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=6851643&loc=d3e12069-110248 + Details
Name: | us-gaap_GuaranteeObligationsCurrentCarryingValue
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition The charge against earnings in the period to reduce the carrying amount of real property to fair value. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3602-108585 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6391110&loc=d3e2921-110230 + Details
Name: | us-gaap_ImpairmentOfRealEstate
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition This item represents the entity's proportionate share for the period of the net income (loss) of its investee (such as unconsolidated subsidiaries and joint ventures) to which the equity method of accounting is applied. This item includes income or expense related to stock-based compensation based on the investor's grant of stock to employees of an equity method investee. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3602-108585 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 9 -Article 5 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 323 -SubTopic 10 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=35755396&loc=d3e33749-111570 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.12) -URI http://asc.fasb.org/extlink&oid=26872669&loc=d3e20235-122688 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Paragraph 11 -Article 7 + Details
Name: | us-gaap_IncomeLossFromEquityMethodInvestments
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08.(h)) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 08 -Paragraph h -Article 4 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Income Tax Expense (or Benefit) -URI http://asc.fasb.org/extlink&oid=6515339 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 9 -Subparagraph (a),(b) -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32639-109319 + Details
Name: | us-gaap_IncomeTaxExpenseBenefit
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition The parent entity's interest in net assets of the subsidiary, expressed as a percentage. + References No definition available. + Details
Name: | us-gaap_MinorityInterestOwnershipPercentageByParent
Namespace Prefix: | us-gaap_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition The number of real estate properties owned as of the balance sheet date. + References No definition available. + Details
Name: | us-gaap_NumberOfRealEstateProperties
Namespace Prefix: | us-gaap_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

X
- Definition Amount before tax and reclassification adjustments of gain (loss) on foreign currency translation adjustments, foreign currency transactions designated and effective as economic hedges of a net investment in a foreign entity and intra-entity foreign currency transactions that are of a long-term-investment nature. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 11 -URI http://asc.fasb.org/extlink&oid=36458714&loc=d3e637-108580 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 10A -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=36458714&loc=SL7669646-108580 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 830 -SubTopic 30 -Section 45 -Paragraph 12 -URI http://asc.fasb.org/extlink&oid=6915805&loc=d3e32022-110900 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 830 -SubTopic 30 -Section 45 -Paragraph 20 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6915805&loc=d3e32211-110900 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 830 -SubTopic 20 -Section 35 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=6939497&loc=d3e30304-110892 + Details
Name: | us-gaap_OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationGainLossBeforeReclassificationAndTax
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Reflects the sum of all other revenue and income recognized by the entity in the period not otherwise specified in the income statement. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 225 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-04.4) -URI http://asc.fasb.org/extlink&oid=6879464&loc=d3e573970-122913 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Paragraph 4 -Article 7 + Details
Name: | us-gaap_OtherIncome
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition The aggregate carrying amount, as of the balance sheet date, of liabilities not separately disclosed in the balance sheet. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 15 -Article 9 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03.15) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 + Details
Name: | us-gaap_OtherLiabilities
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition The cash outflow associated with the purchase of or advances to an equity method investments, which are investments in joint ventures and entities in which the entity has an equity ownership interest normally of 20 to 50 percent and exercises significant influence. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 13 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3213-108585 + Details
Name: | us-gaap_PaymentsToAcquireEquityMethodInvestments
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition The cash outflow from the acquisition of a piece of land, anything permanently fixed to it, including buildings, structures on it and so forth; includes real estate intended to generate income for the owner; excludes real estate acquired for use by the owner. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 13 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3213-108585 + Details
Name: | us-gaap_PaymentsToAcquireRealEstate
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Amount, before tax, of net income (loss) derived from real estate held for development and sale, and related investments. + References No definition available. + Details
Name: | us-gaap_RealEstatePartnershipInvestmentSubsidiariesNetIncomeLossBeforeTax
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition A tax based on the assessed value of real estate by the local government. The tax is usually based on the value of property (including the land). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 720 -SubTopic 30 -Section 45 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=6419918&loc=d3e35301-107843 + Details
Name: | us-gaap_RealEstateTaxExpense
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Revenue from the sale of commercial, industrial, or residential property during the period. This element is more likely than not relevant to an entity for which real estate operations are a principal activity. If real estate operations are not a principal activity, the reporting entity would likely use a gain (loss) on sale of property, plant, or equipment type element. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.1(e)) -URI http://asc.fasb.org/extlink&oid=26872669&loc=d3e20235-122688 + Details
Name: | us-gaap_SalesOfRealEstate
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition The fair value of transfer of mortgage payable in noncash investing or financing activities. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=6367179&loc=d3e4332-108586 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=6367179&loc=d3e4313-108586 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=6367179&loc=d3e4304-108586 + Details
Name: | us-gaap_TransferMortgagePayable
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Details
Name: | us-gaap_InvestmentTypeAxis=us-gaap_MortgageLoansOnRealEstateMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_MajorPropertyClassAxis=us-gaap_AssetsHeldForSaleMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_MortgageLoansOnRealEstateDescriptionLoanCategoryAxis=kim_EncumberedMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RangeAxis=us-gaap_MaximumMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RealEstatePropertiesAxis=kim_OperatingPropertiesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis=kim_BIGShoppingCentersMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis=kim_CPPMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis=kim_IntownMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis=kim_KimcoIncomeFundMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis=kim_KimPruandKimPruIIMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis=kim_KimPruMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis=kim_KimstoneMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis=kim_KIRMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis=kim_OtherInstitutionalProgramsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis=kim_OtherJointVentureProgramsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis=kim_RioCanMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis=kim_UBSProgramsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_SignificantAcquisitionsAndDisposalsByTransactionAxis=kim_AcquiredMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_SignificantAcquisitionsAndDisposalsByTransactionAxis=kim_PendingSaleMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_SignificantAcquisitionsAndDisposalsByTransactionAxis=kim_SoldMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementGeographicalAxis=country_MX
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementScenarioAxis=kim_PropertiesDividedMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_SubsequentEventTypeAxis=us-gaap_SubsequentEventMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |