Consolidated Statements of Cash Flows - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Cash flow from operating activities:
Net income	$ 665,949	$ 114,534	$ 849,696
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	507,265	505,000	395,320
Impairment charges	14,043	21,958	3,597
Straight-line rental income adjustments, net	(22,517)	(33,794)	(22,627)
Amortization of above-market and below-market leases, net	(17,253)	(13,591)	(14,843)
Amortization of deferred financing costs and fair value debt adjustments, net	(9,196)	(28,631)	(9,445)
Early extinguishment of debt charges	0	7,658	0
Equity award expense	33,054	26,639	23,150
Gain on sale of properties	(74,976)	(15,179)	(30,841)
(Gain)/loss on marketable securities, net	(21,262)	315,508	(505,163)
(Gain)/loss on change in fair value of embedded derivative liability	(734)	0	0
Equity in income, net	(10,709)	(17,403)	(23,172)
Distributions from joint ventures and other investments	75,827	83,553	91,507
Change in accounts and notes receivable, net	18,453	(9,104)	4,548
Change in accounts payable and accrued expenses	5,826	37,655	(104,712)
Change in other operating assets and liabilities, net	(19,885)	(24,208)	46,638
Net cash flow provided by operating activities	1,071,607	861,114	618,875
Cash flow from investing activities:
Acquisition of operating real estate and other related net assets	(277,308)	(300,772)	(355,953)
Improvements to operating real estate	(264,395)	(193,710)	(163,699)
Acquisition of Weingarten Realty Investors, net of cash acquired of $56,451	0	0	(263,973)
Investment in marketable securities	(3,614)	(4,003)	0
Proceeds from sale of marketable securities	292,552	302,504	377
Investment in cost method investments	(1,569)	(4,524)	0
Investments in and advances to real estate joint ventures	(24,494)	(87,301)	(12,571)
Reimbursements of investments in and advances to real estate joint ventures	13,738	37,571	47,862
Investments in and advances to other investments	(18,442)	(17,432)	(67,090)
Reimbursements of investments in and advances to other investments	282	30,855	64,068
Investment in mortgage and other financing receivables	(18,519)	(75,063)	(41,897)
Collection of mortgage and other financing receivables	133	60,306	13,776
Proceeds from sale of properties	160,064	184,294	302,841
Principal payments from securities held-to-maturity	4,589	4,058	0
Net cash flow used for investing activities	(136,983)	(63,217)	(476,259)
Cash flow from financing activities:
Principal payments on debt, excluding normal amortization of rental property debt	(49,460)	(157,928)	(229,288)
Principal payments on rental property debt	(11,308)	(9,808)	(10,622)
Proceeds from mortgage loan financings	0	19,000	0
Financing origination costs	(12,481)	(20,326)	(8,197)
Payment of early extinguishment of debt charges	0	(6,955)	0
Contributions from noncontrolling interests	13	891	0
Redemption/distribution of noncontrolling interests	(58,417)	(67,453)	(34,610)
Dividends paid	(657,460)	(544,740)	(382,132)
Proceeds from issuance of stock, net	3,727	15,513	82,989
Repurchase of preferred stock	(1,491)	(3,441)	0
Shares repurchased for employee tax withholding on equity awards	(16,293)	(13,679)	(20,842)
Change in tenants' security deposits	2,474	5,255	1,561
Net cash flow used for financing activities	(300,696)	(982,731)	(101,141)
Net change in cash, cash equivalents and restricted cash	633,928	(184,834)	41,475
Cash, cash equivalents and restricted cash, beginning of year	149,829	334,663	293,188
Cash, cash equivalents and restricted cash, end of year	783,757	149,829	334,663
Interest paid during the year including payment of early extinguishment of debt charges of $0, $6,955 and $0, respectively (net of capitalized interest of $2,313, $668 and $583, respectively)	250,432	257,979	197,947
Income taxes paid during the year, net of refunds	65,267	11,869	1,961
Senior Unsecured Notes [Member]
Cash flow from financing activities:
Proceeds from unsecured debt	500,000	1,250,000	500,000
Repayments of unsecured notes	0	(1,449,060)	0
Joint Ventures [Member]
Adjustments to reconcile net income to net cash provided by operating activities:
Equity in income, net	(72,278)	(109,481)	(84,778)
Other Real Estate Investments [Member]
Adjustments to reconcile net income to net cash provided by operating activities:
Equity in income, net	(10,709)	(17,403)	(23,172)
Kimco Realty OP, LLC [Member]
Cash flow from operating activities:
Net income	665,949	114,534	849,696
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	507,265	505,000	395,320
Impairment charges	14,043	21,958	3,597
Straight-line rental income adjustments, net	(22,517)	(33,794)	(22,627)
Amortization of above-market and below-market leases, net	(17,253)	(13,591)	(14,843)
Amortization of deferred financing costs and fair value debt adjustments, net	(9,196)	(28,631)	(9,445)
Early extinguishment of debt charges	0	7,658	0
Equity award expense	33,054	26,639	23,150
Gain on sale of properties	(74,976)	(15,179)	(30,841)
(Gain)/loss on marketable securities, net	(21,262)	315,508	(505,163)
(Gain)/loss on change in fair value of embedded derivative liability	(734)	0	0
Distributions from joint ventures and other investments	75,827	83,553	91,507
Change in accounts and notes receivable, net	18,453	(9,104)	4,548
Change in accounts payable and accrued expenses	5,826	37,655	(104,712)
Change in other operating assets and liabilities, net	(19,885)	(24,208)	46,638
Net cash flow provided by operating activities	1,071,607	861,114	618,875
Cash flow from investing activities:
Acquisition of operating real estate and other related net assets	(277,308)	(300,772)	(355,953)
Improvements to operating real estate	(264,395)	(193,710)	(163,699)
Acquisition of Weingarten Realty Investors, net of cash acquired of $56,451	0	0	(263,973)
Investment in marketable securities	(3,614)	(4,003)	0
Proceeds from sale of marketable securities	292,552	302,504	377
Investment in cost method investments	(1,569)	(4,524)	0
Investments in and advances to real estate joint ventures	(24,494)	(87,301)	(12,571)
Reimbursements of investments in and advances to real estate joint ventures	13,738	37,571	47,862
Investments in and advances to other investments	(18,442)	(17,432)	(67,090)
Reimbursements of investments in and advances to other investments	282	30,855	64,068
Collection of mortgage and other financing receivables	133	60,306	13,776
Proceeds from sale of properties	160,064	184,294	302,841
Principal payments from securities held-to-maturity	4,589	4,058	0
Net cash flow used for investing activities	(136,983)	(63,217)	(476,259)
Investment in mortgage and other financing receivables	(18,519)	(75,063)	(41,897)
Cash flow from financing activities:
Principal payments on debt, excluding normal amortization of rental property debt	(49,460)	(157,928)	(229,288)
Principal payments on rental property debt	(11,308)	(9,808)	(10,622)
Proceeds from mortgage loan financings	0	19,000	0
Financing origination costs	(12,481)	(20,326)	(8,197)
Payment of early extinguishment of debt charges	0	(6,955)	0
Contributions from noncontrolling interests	13	891	0
Redemption/distribution of noncontrolling interests	(58,417)	(67,453)	(34,610)
Dividends paid	(657,460)	(544,740)	(382,132)
Proceeds from issuance of stock, net	3,727	15,513	82,989
Repurchase of preferred stock	(1,491)	(3,441)	0
Shares repurchased for employee tax withholding on equity awards	(16,293)	(13,679)	(20,842)
Change in tenants' security deposits	2,474	5,255	1,561
Net cash flow used for financing activities	(300,696)	(982,731)	(101,141)
Net change in cash, cash equivalents and restricted cash	633,928	(184,834)	41,475
Cash, cash equivalents and restricted cash, beginning of year	149,829	334,663	293,188
Cash, cash equivalents and restricted cash, end of year	783,757	149,829	334,663
Interest paid during the year including payment of early extinguishment of debt charges of $0, $6,955 and $0, respectively (net of capitalized interest of $2,313, $668 and $583, respectively)	250,432	257,979	197,947
Income taxes paid during the year, net of refunds	65,267	11,869	1,961
Kimco Realty OP, LLC [Member] | Senior Unsecured Notes [Member]
Cash flow from financing activities:
Proceeds from unsecured debt	500,000	1,250,000	500,000
Repayments of unsecured notes	0	(1,449,060)	0
Kimco Realty OP, LLC [Member] | Joint Ventures [Member]
Adjustments to reconcile net income to net cash provided by operating activities:
Equity in income, net	(72,278)	(109,481)	(84,778)
Kimco Realty OP, LLC [Member] | Other Real Estate Investments [Member]
Adjustments to reconcile net income to net cash provided by operating activities:
Equity in income, net	$ (10,709)	$ (17,403)	$ (23,172)