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Note 13 - Fair Value Measurements - Partner Units Cash Distribution Rates And Conversion Features (Details)	9 Months Ended
	Sep. 30, 2023 $ / shares shares
Preferred Outside Partner Units [Member]
Par Value Per Unit (in dollars per share) | $ / shares	$ 20.00
Number of Units Remaining (in shares) | shares	6,104,831
Return Per Annum	3.75%
Common Outside Partner Units [Member]
Par Value Per Unit (in dollars per share) | $ / shares	$ 20.00
Number of Units Remaining (in shares) | shares	678,306

X

- Definition

The annual return from non-controlling interest represented by a percentage.

+ References

No definition available.

+ Details

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Namespace Prefix:	kim_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	instant

X

- Definition

The par value of non-controlling interest.

+ References

No definition available.

+ Details

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Namespace Prefix:	kim_
Data Type:	dtr-types:perShareItemType
Balance Type:	na
Period Type:	instant

X

- Definition

The number of units issued in connection to non-controlling interest.

+ References

No definition available.

+ Details

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Namespace Prefix:	kim_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

X

- Details

Name:	us-gaap_StatementClassOfStockAxis=kim_PreferredOutsidePartnerUnitsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

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Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: