Name:	kim_Note2OperatingPropertyActivitiesDetailsLineItems
Namespace Prefix:	kim_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

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=56956515&loc=d3e1392-128463

+ Details

Name:	us-gaap_BusinessCombinationStepAcquisitionEquityInterestInAcquireeRemeasurementGain
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

In a business combination achieved in stages, this element represents the amount of loss 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

No definition available.

+ Details

Name:	us-gaap_BusinessCombinationStepAcquisitionEquityInterestInAcquireeRemeasurementLoss
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- 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

+ Details

Name:	us-gaap_GainsLossesOnSalesOfInvestmentRealEstate
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- 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=56944662&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=51719941&loc=d3e2921-110230

+ Details

Name:	us-gaap_ImpairmentOfRealEstate
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- 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

- 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

- Definition

Cash inflow related to a property which is traded for the promise to provide a replacement like-kind property in the near future also known as a tax deferred exempt exchange.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 230

-SubTopic 10

-Section 45

-Paragraph 12

-Subparagraph (c)

-URI http://asc.fasb.org/extlink&oid=56944662&loc=d3e3179-108585

+ Details

Name:	us-gaap_ProceedsFromDelayedTaxExemptExchange
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Cash received for the sale of real estate that is not part of an investing activity during the current period.

+ References

+ Details

Name:	us-gaap_ProceedsFromSaleOfRealEstate
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Carrying amount as of the balance sheet date of investments in land and buildings held for sale, excluding real estate considered to be inventory of the entity.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 944

-SubTopic 210

-Section S99

-Paragraph 1

-Subparagraph (SX 210.7-03.1(f))

-URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Amount of accumulated depreciation for real estate owned (REO).

+ References

No definition available.

+ Details

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

- Details

Name:	us-gaap_BalanceSheetLocationAxis=us-gaap_OtherAssetsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_BusinessAcquisitionAxis=kim_ElmontPlazaMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_BusinessAcquisitionAxis=kim_KimstoneMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DisposalGroupClassificationAxis=us-gaap_DisposalGroupHeldforsaleNotDiscontinuedOperationsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_IncomeStatementLocationAxis=us-gaap_OperatingExpenseMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis=us-gaap_OtherPropertyMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_PropertyPlantAndEquipmentByTypeAxis=kim_SoldMember
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Note 2 - Operating Property Activities (Details) (USD $)	3 Months Ended		1 Months Ended
	Mar. 31, 2015	Mar. 31, 2014	Jan. 31, 2015	Feb. 28, 2015	Dec. 31, 2014	Feb. 02, 2015
Note 2 - Operating Property Activities (Details) [Line Items]
Proceeds from Delayed Tax Exempt Exchange	$ 31,700,000
Business Combination, Step Acquisition, Equity Interest in Acquiree, Remeasurement Gain	139,801,000	3,744,000
Proceeds from Sale of Real Estate	96,500,000us-gaap_ProceedsFromSaleOfRealEstate
Gains (Losses) on Sales of Investment Real Estate	32,100,000
Impairment of Real Estate	600,000us-gaap_ImpairmentOfRealEstate
Other Property [Member] \| Sold [Member]
Note 2 - Operating Property Activities (Details) [Line Items]
Number of Real Estate Properties	3
Sold [Member] \| Operating Properties [Member]
Note 2 - Operating Property Activities (Details) [Line Items]
Number of Real Estate Properties	39
Operating Expense [Member] \| Real Estate, Operating Properties [Member]
Note 2 - Operating Property Activities (Details) [Line Items]
Impairment of Real Estate	500,000
Operating Expense [Member] \| Real Estate, Carrying Value Adjustment [Member]
Note 2 - Operating Property Activities (Details) [Line Items]
Impairment of Real Estate	5,900,000
Operating Expense [Member]
Note 2 - Operating Property Activities (Details) [Line Items]
Impairment of Real Estate	6,400,000
Other Assets [Member]
Note 2 - Operating Property Activities (Details) [Line Items]
Real Estate Held-for-sale	7,600,000
Real Estate Owned, Accumulated Depreciation	400,000
Disposal Group, Held-for-sale, Not Discontinued Operations [Member]
Note 2 - Operating Property Activities (Details) [Line Items]
Number of Real Estate Properties	5
Elmont Plaza [Member]
Note 2 - Operating Property Activities (Details) [Line Items]
Noncontrolling Interest, Ownership Percentage by Parent					50.00%
Business Combination, Step Acquisition, Equity Interest in Acquiree, Remeasurement Loss			200,000
Kimstone [Member]
Note 2 - Operating Property Activities (Details) [Line Items]
Noncontrolling Interest, Ownership Percentage by Parent					33.30%
Number of Real Estate Properties				39		39
Business Combination, Step Acquisition, Equity Interest in Acquiree, Remeasurement Gain				$ 140,000,000