Note 2 - Operating Property Activities - Purchase Price Allocation (Details) $ in Thousands	9 Months Ended
Sep. 30, 2016 USD ($)
Preliminary Allocation [Member] \| Land [Member]
Allocation	$ 144,368
Preliminary Allocation [Member] \| Building [Member]
Allocation	257,967
Preliminary Allocation [Member] \| Building Improvements [Member]
Allocation	102,853
Preliminary Allocation [Member] \| Leasehold Improvements [Member]
Allocation	10,758
Preliminary Allocation [Member] \| Above Market Leases [Member]
Allocation	10,005
Preliminary Allocation [Member] \| The Below Market Lease [Member]
Allocation	(26,399)
Preliminary Allocation [Member] \| Leases, Acquired-in-Place [Member]
Allocation	37,145
Preliminary Allocation [Member]
Allocation	(3,143)
Allocation	234
Allocation	533,788
Allocation Adjustments [Member] \| Land [Member]
Allocation	(10,056)
Allocation Adjustments [Member] \| Building [Member]
Allocation adjustments	40,123
Allocation Adjustments [Member] \| Building Improvements [Member]
Allocation adjustments	(21,200)
Allocation Adjustments [Member] \| Leasehold Improvements [Member]
Allocation adjustments	(1,724)
Allocation Adjustments [Member] \| Above Market Leases [Member]
Allocation adjustments	(2,254)
Allocation Adjustments [Member] \| The Below Market Lease [Member]
Allocation adjustments	(2,705)
Allocation Adjustments [Member] \| Leases, Acquired-in-Place [Member]
Allocation adjustments	(1,490)
Allocation Adjustments [Member]
Allocation adjustments	(694)
Land [Member]
Allocation	134,312
Building [Member]
Allocation	298,090
Building Improvements [Member]
Allocation	81,653
Leasehold Improvements [Member]
Allocation	9,034
Above Market Leases [Member]
Allocation	7,751
The Below Market Lease [Member]
Allocation	(29,104)
Leases, Acquired-in-Place [Member]
Allocation	35,655
Allocation	(3,837)
Allocation	234
Allocation	$ 533,788

The preliminary allocation of leases.

No definition available.

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Namespace Prefix:	kim_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

The fair value debt adjustments resulting from the business acquisition.

+ References

No definition available.

+ Details

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Namespace Prefix:	kim_
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- Definition

This element represents the amount of any measurement period adjustment (as defined) realized during the reporting period to financial liabilities assumed in connection with a business combination for which the initial accounting was incomplete.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 20
-Section 50
-Paragraph 4A
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=73530397&loc=SL65897772-128472

+ Details

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- Definition

This element represents the amount of any measurement period adjustment (as defined) realized during the reporting period to intangibles acquired in connection with a business combination for which the initial accounting was incomplete.

+ References

+ Details

Name:	us-gaap_BusinessCombinationProvisionalInformationInitialAccountingIncompleteAdjustmentIntangibles
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
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- Definition

This element represents the amount of any measurement period adjustment (as defined) realized during the reporting period to property, plant, and equipment acquired in connection with a business combination for which the initial accounting was incomplete.

+ References

+ Details

Name:	us-gaap_BusinessCombinationProvisionalInformationInitialAccountingIncompleteAdjustmentPropertyPlantAndEquipment
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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Amount recognized as of the acquisition date for the identifiable assets acquired in excess of (less than) the aggregate liabilities assumed.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 10
-Section 55
-Paragraph 37
-URI http://asc.fasb.org/extlink&oid=73531372&loc=d3e2207-128464

Reference 2: 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=73530397&loc=d3e4845-128472

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Balance Type:	debit
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- Definition

Amount of other assets expected to be realized or consumed after one year or the normal operating cycle, if longer, acquired at the acquisition date.

+ References

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

The amount of property, plant, and equipment recognized as of 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=73530397&loc=d3e4845-128472

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 10
-Section 55
-Paragraph 37
-URI http://asc.fasb.org/extlink&oid=73531372&loc=d3e2207-128464

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- Details

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Namespace Prefix:
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- Details

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- Details

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- Details

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- Details

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- Details

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- Details

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- Details

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