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Note 16 - Fair Value Disclosure of Financial Instruments (Detail) (USD $) | Dec. 31, 2012 | Dec. 31, 2011
--- | --- | ---
| $ 36,825,000 | $ 33,908,000
Estimates and Comps [Member] | Minimum [Member] |  |
Assets, Fair Value Disclosure, Nonrecurring | 1,100,000 |
Estimates and Comps [Member] | Maximum [Member] |  |
Assets, Fair Value Disclosure, Nonrecurring | 42,000,000 |
Fair Value, Inputs, Level 1 [Member] |  |
| 33,400,000 |
Fair Value, Inputs, Level 3 [Member] |  |
| $ 3,400,000 |

X
- Definition No authoritative reference available. + References No definition available. + Details
Name: | kim_MarketableSecuritiesFairValue
Namespace Prefix: | kim_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition This element represents the aggregate of the assets reported on the balance sheet at period end measured at fair value on a nonrecurring basis by the entity. This element is intended to be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. + References No definition available. + Details
Name: | us-gaap_AssetsFairValueDisclosureNonrecurring
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant