Note 9 - Redeemable Noncontrolling Interests (Details Textual)	Mar. 31, 2017
KIM Lincoln, LLC [Member]
Ownership Interest in Joint Venture, Percentage	90.00%
Lincoln Square Property, LP [Member]
Ownership Interest in Joint Venture, Percentage	10.00%

Represents the percentage of ownership interest in a joint venture.

No definition available.

Name:	kim_OwnershipInterestInJointVenturePercentage
Namespace Prefix:	kim_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant