Note 24 - Captive Insurance Company: (Details) (USD $)	12 Months Ended
Dec. 31, 2014	Dec. 31, 2013
Note 24 - Captive Insurance Company: (Details) [Line Items]
Letters of Credit Outstanding, Amount	$ 24,900,000
Minimum [Member] \| Kimco Insurance Company [Member]
Note 24 - Captive Insurance Company: (Details) [Line Items]
Captive Insurance, Annual Aggregates Per Policy	7,800,000
Captive Insurance, Obligations to Reinsurance Provider, Percent of Incurred Losses	9.50%
Maximum [Member] \| Kimco Insurance Company [Member]
Note 24 - Captive Insurance Company: (Details) [Line Items]
Captive Insurance, Annual Aggregates Per Policy	11,000,000
Captive Insurance, Obligations to Reinsurance Provider, Percent of Incurred Losses	12.20%
Kimco Insurance Company [Member]
Note 24 - Captive Insurance Company: (Details) [Line Items]
Captive Insurance, Percentage of Occurance Risk Layer	100.00%
Captive Insurance, Obligation Per Occurrence	250,000
Letters of Credit Outstanding, Amount	22,000,000	22,000,000
Decrease in Incurred Insurance Losses and Loss Adjustment Expenses	$ 1,700,000	$ 3,600,000

The amount of annual aggregates for captive insurance coverage policies.

No definition available.

Name:	kim_CaptiveInsuranceAnnualAggregatesPerPolicy
Namespace Prefix:	kim_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

The amount the company is obligated to cover per occurrence

No definition available.

Name:	kim_CaptiveInsuranceObligationPerOccurrence
Namespace Prefix:	kim_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

The percentage of incurred losses that the captive insurance company is required to pay to the reinsurance provider.

No definition available.

Name:	kim_CaptiveInsuranceObligationstoReinsuranceProviderPercentofIncurredLosses
Namespace Prefix:	kim_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

The percentage of occurrence risk layer that is assumed by the insurance company.

No definition available.

Name:	kim_CaptiveInsurancePercentageofOccuranceRiskLayer
Namespace Prefix:	kim_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

The decrease in the amount of incurred losses and loss adjustment expenses as a result of the change in estimates for insured events.

No definition available.

Name:	kim_DecreaseinIncurredInsuranceLossesandLossAdjustmentExpenses
Namespace Prefix:	kim_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

Name:	kim_Note24CaptiveInsuranceCompanyDetailsLineItems
Namespace Prefix:	kim_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

The total amount of the contingent obligation under letters of credit outstanding as of the reporting date.

No definition available.

Name:	us-gaap_LettersOfCreditOutstandingAmount
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

Name:	dei_LegalEntityAxis=kim_KimcoInsuranceCompanyMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

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

Name:	us-gaap_RangeAxis=us-gaap_MinimumMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: