The number of shares issued or issuable per each acquired company share in the business acquisition.

No definition available.

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Balance Type:	na
Period Type:	duration

- Definition

Represents the amount of reimbursements paid to the acquiree in connection with a business combination.

+ References

No definition available.

+ Details

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- Definition

Represents the number of properties acquired.

+ References

No definition available.

+ Details

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

- Definition

Of the number of properties acquired, this element represents the number held through joint venture programs.

+ References

No definition available.

+ Details

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Namespace Prefix:	kim_
Data Type:	xbrli:integerItemType
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- Definition

Value of input used to measure real estate.

+ References

No definition available.

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- Definition

Price of a single share of a number of saleable stocks paid or offered to be paid in a business combination.

+ References

No definition available.

+ Details

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Period Type:	instant

- Definition

This element represents acquisition-related costs incurred to effect a business combination which costs have been expensed during the period. Such costs include finder's fees; advisory, legal, accounting, valuation, and other professional or consulting fees; general administrative costs, including the costs of maintaining an internal acquisitions department; and may include costs of registering and issuing debt and equity securities.

+ References

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- Definition

Amount of consideration transferred, consisting of acquisition-date fair value of assets transferred by the acquirer, liabilities incurred by the acquirer, and equity interest issued by the acquirer.

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Balance Type:	credit
Period Type:	duration

- Definition

This element represents the amount of earnings or loss of the acquiree since the acquisition date included in the consolidated income statement for the reporting period.

+ References

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Balance Type:	credit
Period Type:	duration

- Definition

This element represents the amount of revenue of the acquiree since the acquisition date included in the consolidated income statement for the reporting period.

+ References

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Namespace Prefix:	us-gaap_
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Balance Type:	credit
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.

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

- Definition

Value of input used to measure debt instrument, including, but not limited to, convertible and non-convertible debt.

+ References

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-Name Accounting Standards Codification
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Period Type:	instant

- Definition

Value of input used to measure long-term debt.

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Balance Type:	na
Period Type:	instant

- Definition

The cash outflow associated with the acquisition of business during the period. The cash portion only of the acquisition price.

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Note 2 - Weingarten Merger (Details Textual) $ / shares in Units, $ in Thousands				12 Months Ended
	Aug. 03, 2021 USD ($) $ / shares shares	Jul. 15, 2021 shares	Apr. 15, 2021 shares	Dec. 31, 2021 USD ($)	Dec. 31, 2020 USD ($)	Dec. 31, 2019 USD ($)
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Net, Total				$ 896,707	$ 7,073
Business Combination, Acquisition Related Costs				$ 50,191	$ (0)	$ (0)
Measurement Input, Credit Spread [Member] \| Weighted Average [Member] \| Secured Debt [Member]
Long-term Debt, Measurement Input				0.0333
Measurement Input, Variable Rate [Member] \| Secured Debt [Member] \| London Interbank Offered Rate (LIBOR) [Member]
Debt Instrument, Measurement Input				0.0214
Weingarten Realty Investors [Member]
Business Combination, Consideration Transferred, Total	$ 4,059,159
Payments to Acquire Businesses, Gross	$ 281,100
Business Acquisition, Share Price (in dollars per share) \| $ / shares	$ 20.78
Business Acquisition, Equity Interest Issued or Issuable, Number of Shares Per Each Acquired Company Share (in shares) \| shares	1.408	1.408	1.408
Business Combination, Reimbursements Paid to Acquiree	$ 39,300
Number of Properties Acquired	149
Properties Acquired, Number Held Through Joint Venture Programs	30
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Net, Total	$ 4,100,000
Business Combination, Pro Forma Information, Revenue of Acquiree since Acquisition Date, Actual				$ 198,300
Business Combination, Pro Forma Information, Earnings or Loss of Acquiree since Acquisition Date, Actual				25,800
Business Combination, Acquisition Related Costs				$ 50,200
Weingarten Realty Investors [Member] \| Measurement Input, Cap Rate [Member] \| Valuation, Income Approach [Member] \| Minimum [Member]
Real Estate, Measurement Input	0.045
Weingarten Realty Investors [Member] \| Measurement Input, Cap Rate [Member] \| Valuation, Income Approach [Member] \| Maximum [Member]
Real Estate, Measurement Input	0.095
Weingarten Realty Investors [Member] \| Measurement Input, Cap Rate [Member] \| Valuation Technique, Discounted Cash Flow [Member] \| Minimum [Member]
Real Estate, Measurement Input	0.060
Weingarten Realty Investors [Member] \| Measurement Input, Cap Rate [Member] \| Valuation Technique, Discounted Cash Flow [Member] \| Maximum [Member]
Real Estate, Measurement Input	0.0825
Weingarten Realty Investors [Member] \| Measurement Input, Discount Rate [Member] \| Valuation Technique, Discounted Cash Flow [Member] \| Minimum [Member]
Real Estate, Measurement Input	0.0675
Weingarten Realty Investors [Member] \| Measurement Input, Discount Rate [Member] \| Valuation Technique, Discounted Cash Flow [Member] \| Maximum [Member]
Real Estate, Measurement Input	0.090