Amount of financial liabilities attributable to disposal group held for sale or disposed of.

No definition available.

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

- Definition

Amount of noncontrolling interest share of impairment.

+ References

No definition available.

+ Details

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

- Definition

Amount received from disposal of properties attributable to noncontrolling interest.

+ References

No definition available.

+ Details

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

- Definition

Number of properties held in consolidated joint venture.

+ References

No definition available.

+ Details

Name:	kim_NumberOfPropertiesHeldInConsolidatedJointVenture
Namespace Prefix:	kim_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

- Definition

Amount of write-down of assets recognized in the income statement. Includes, but is not limited to, losses from tangible assets, intangible assets and goodwill.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 28
-Subparagraph (b)
-URI https://asc.fasb.org/extlink&oid=126954810&loc=d3e3602-108585

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 360
-SubTopic 10
-Section 45
-Paragraph 4
-URI https://asc.fasb.org/extlink&oid=126905981&loc=d3e2420-110228

+ Details

Name:	us-gaap_AssetImpairmentCharges
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:	dtr-types:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

The cash inflow from the sale of formerly productive land held for sale, anything permanently fixed to it, including buildings, structures on it, and so forth.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 12
-Subparagraph (c)
-URI https://asc.fasb.org/extlink&oid=126954810&loc=d3e3179-108585

+ Details

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

- Details

Name:	us-gaap_PropertyPlantAndEquipmentByTypeAxis=kim_PropertiesHeldInConsolidatedJointVentureMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis=kim_DisposalOfFiveOperatingPropertiesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

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

- Details

Name:	srt_OwnershipAxis=kim_ConsolidatedJointVentureMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Note 12 - Noncontrolling Interests (Details Textual) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2022 USD ($)	Sep. 30, 2021 USD ($)	Sep. 30, 2022 USD ($)	Sep. 30, 2021 USD ($)
Proceeds from Sale of Property Held-for-sale			$ 146,218	$ 154,017
Asset Impairment Charges, Total	$ 7,067	$ 850	$ 21,758	$ 954
Properties Held in Consolidated Joint Venture [Member]
Number of Properties Held in Consolidated Joint Venture			5
Asset Impairment Charges, Total			$ 19,000
Noncontrolling Interest, Impairment Shares Amount			15,800
Properties Held in Consolidated Joint Venture [Member] \| Disposal Of Five Operating Properties [Member] \| Discontinued Operations, Disposed of by Sale [Member]
Disposal Group, Including Discontinued Operation, Financing Liabilities	$ 42,800		42,800
Proceeds from Sale of Property Held-for-sale			105,500
Noncontrolling Interests, Amount Received from Disposal of Properties			$ 50,300
Consolidated Joint Venture [Member]
Noncontrolling Interest, Ownership Percentage by Parent	15.00%		15.00%