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Note 8 - Notes and Mortgages Payable - Note Repayments (Details) - Term Loan [Member] $ in Millions	3 Months Ended
	Mar. 31, 2017 USD ($)
Amount Repaid	$ 250
Maturity Date	Jan-17

X

- Definition

Date when the debt instrument is scheduled to be fully repaid.

+ References

No definition available.

+ Details

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

X

- Definition

The cash outflow for debt initially having maturity due after one year or beyond the normal operating cycle, if longer.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 15
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3291-108585

+ Details

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

X

- Details

Name:	us-gaap_LongtermDebtTypeAxis=kim_TermLoanMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: