Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Cash flow from operating activities:
Net (loss)/income	$ (9,038)	$ 293,776
Adjustments to reconcile net (loss)/income to net cash flow provided by operating activities:
Depreciation and amortization	154,719	126,301
Impairment charges	3,701	11,806
Straight-line rental income adjustments, net	(7,405)	(7,701)
Amortization of above-market and below-market leases, net	(5,901)	(2,989)
Amortization of deferred financing costs and fair value debt adjustments, net	(710)	(2,313)
Equity award expense	10,044	9,333
Gain on sale of properties	(318)	(39,206)
Loss on marketable securities, net	27,686	10,144
Change in fair value of embedded derivative liability	1,842	0
Distributions from joint ventures and other investments	23,508	13,428
Change in accounts and notes receivable, net	22,446	8,887
Change in accounts payable and accrued expenses	4,533	(30,597)
Change in other operating assets and liabilities, net	(26,577)	(19,310)
Net cash flow provided by operating activities	176,091	345,233
Cash flow from investing activities:
Acquisition of operating real estate and other related net assets	0	(98,546)
Improvements to operating real estate	(44,083)	(40,202)
Acquisition of RPT Realty	(149,103)	0
Investment in marketable securities	(1)	(2,202)
Proceeds from sale of marketable securities	299,634	138,207
Investments in and advances to real estate joint ventures	(3,182)	(12,848)
Reimbursements of investments in and advances to real estate joint ventures	5,920	5,446
Investments in and advances to other investments	(2,894)	(6,326)
Reimbursements of investments in and advances to other investments	931	199
Investment in mortgage and other financing receivables	(9,000)	(11,211)
Collection of mortgage and other financing receivables	38,189	59
Proceeds from sale of properties	65,019	70,983
Net cash flow provided by investing activities	201,430	43,559
Cash flow from financing activities:
Principal payments on debt, excluding normal amortization of rental property debt	0	(37,187)
Principal payments on rental property debt	(2,724)	(2,794)
Proceeds from issuance of unsecured term loans	510,000	0
Proceeds from unsecured revolving credit facility, net	125,000	0
Financing origination costs	(1,538)	(6,026)
Redemption/distribution of noncontrolling interests	(4,904)	(2,609)
Dividends paid	(168,338)	(148,882)
Proceeds from issuance of stock, net	0	3,727
Repurchase of preferred stock	0	(268)
Shares repurchased for employee tax withholding on equity awards	(14,631)	(16,085)
Change in tenants' security deposits	324	680
Net cash flow used for financing activities	(1,024,511)	(209,444)
Net change in cash, cash equivalents and restricted cash	(646,990)	179,348
Cash, cash equivalents and restricted cash, beginning of the period	783,757	149,829
Cash, cash equivalents and restricted cash, end of the period	136,767	329,177
Interest paid (net of capitalized interest of $666 and $198, respectively)	73,556	54,847
Income taxes paid, net of refunds	51,157	47,617
Distributions paid to common and preferred unitholders	(168,338)	(148,882)
Unsecured Term Loan [Member]
Cash flow from financing activities:
Repayments of unsecured term loans	(310,000)	0
Senior Unsecured Notes [Member]
Cash flow from financing activities:
Repayments of unsecured term loans	(1,157,700)	0
Joint Ventures [Member]
Adjustments to reconcile net (loss)/income to net cash flow provided by operating activities:
Equity in income, net	(20,905)	(24,204)
Other Real Estate Investments [Member]
Adjustments to reconcile net (loss)/income to net cash flow provided by operating activities:
Equity in income, net	(1,534)	(2,122)
Kimco Realty OP, LLC [Member]
Cash flow from operating activities:
Net (loss)/income	(9,038)	293,776
Adjustments to reconcile net (loss)/income to net cash flow provided by operating activities:
Depreciation and amortization	154,719	126,301
Impairment charges	3,701	11,806
Straight-line rental income adjustments, net	(7,405)	(7,701)
Amortization of above-market and below-market leases, net	(5,901)	(2,989)
Amortization of deferred financing costs and fair value debt adjustments, net	(710)	(2,313)
Equity award expense	10,044	9,333
Gain on sale of properties	(318)	(39,206)
Loss on marketable securities, net	27,686	10,144
Change in fair value of embedded derivative liability	1,842	0
Distributions from joint ventures and other investments	23,508	13,428
Change in accounts and notes receivable, net	22,446	8,887
Change in accounts payable and accrued expenses	4,533	(30,597)
Change in other operating assets and liabilities, net	(26,577)	(19,310)
Net cash flow provided by operating activities	176,091	345,233
Cash flow from investing activities:
Acquisition of operating real estate and other related net assets	0	(98,546)
Improvements to operating real estate	(44,083)	(40,202)
Acquisition of RPT Realty	(149,103)	0
Investment in marketable securities	(1)	(2,202)
Proceeds from sale of marketable securities	299,634	138,207
Investments in and advances to real estate joint ventures	(3,182)	(12,848)
Reimbursements of investments in and advances to real estate joint ventures	5,920	5,446
Investments in and advances to other investments	(2,894)	(6,326)
Reimbursements of investments in and advances to other investments	931	199
Investment in mortgage and other financing receivables	(9,000)	(11,211)
Collection of mortgage and other financing receivables	38,189	59
Proceeds from sale of properties	65,019	70,983
Net cash flow provided by investing activities	201,430	43,559
Cash flow from financing activities:
Principal payments on debt, excluding normal amortization of rental property debt	0	(37,187)
Principal payments on rental property debt	(2,724)	(2,794)
Proceeds from issuance of unsecured term loans	510,000	0
Proceeds from unsecured revolving credit facility, net	125,000	0
Financing origination costs	(1,538)	(6,026)
Redemption/distribution of noncontrolling interests	(4,904)	(2,609)
Dividends paid	(168,338)	(148,882)
Proceeds from issuance of stock, net	0	3,727
Repurchase of preferred stock	0	(268)
Shares repurchased for employee tax withholding on equity awards	(14,631)	(16,085)
Change in tenants' security deposits	324	680
Net cash flow used for financing activities	(1,024,511)	(209,444)
Net change in cash, cash equivalents and restricted cash	(646,990)	179,348
Cash, cash equivalents and restricted cash, beginning of the period	783,757	149,829
Cash, cash equivalents and restricted cash, end of the period	136,767	329,177
Interest paid (net of capitalized interest of $666 and $198, respectively)	73,556	54,847
Income taxes paid, net of refunds	51,157	47,617
Distributions paid to common and preferred unitholders	(168,338)	(148,882)
Kimco Realty OP, LLC [Member] | Unsecured Term Loan [Member]
Cash flow from financing activities:
Repayments of unsecured term loans	(310,000)	0
Kimco Realty OP, LLC [Member] | Senior Unsecured Notes [Member]
Cash flow from financing activities:
Repayments of unsecured term loans	(1,157,700)	0
Kimco Realty OP, LLC [Member] | Joint Ventures [Member]
Adjustments to reconcile net (loss)/income to net cash flow provided by operating activities:
Equity in income, net	(20,905)	(24,204)
Kimco Realty OP, LLC [Member] | Other Real Estate Investments [Member]
Adjustments to reconcile net (loss)/income to net cash flow provided by operating activities:
Equity in income, net	$ (1,534)	$ (2,122)