Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022
Cash flow from operating activities:
Net income	$ 523,836	$ 161,603
Adjustments to reconcile net income to net cash flow provided by operating activities:
Depreciation and amortization	382,983	380,324
Impairment charges	14,043	21,758
Straight-line rental income adjustments, net	(17,458)	(24,776)
Amortization of above-market and below-market leases, net	(13,969)	(10,087)
Amortization of deferred financing costs and fair value debt adjustments, net	(6,999)	(26,139)
Early extinguishment of debt charges	0	7,658
Equity award expense	25,334	20,185
Gain on sale of properties	(52,376)	(10,958)
(Gain)/loss on marketable securities, net	(17,642)	215,194
Change in fair value of embedded derivative liability	7,000	0
Distributions from joint ventures and other investments	54,875	66,875
Change in accounts and notes receivable, net	32,584	13,826
Change in other operating assets and liabilities, net	48,712	33,534
Change in other operating assets and liabilities, net	(33,184)	(33,690)
Net cash flow provided by operating activities	881,409	705,756
Cash flow from investing activities:
Acquisition of operating real estate and other related net assets	(269,499)	(161,171)
Improvements to operating real estate	(179,145)	(128,592)
Investment in marketable securities	(3,102)	(3,348)
Proceeds from sale of marketable securities	291,341	800
Investment in cost method investment	(1,532)	(4,497)
Investments in and advances to real estate joint ventures	(21,408)	(80,496)
Reimbursements of investments in and advances to real estate joint ventures	9,024	31,540
Investments in and advances to other investments	(13,594)	(12,669)
Reimbursements of investments in and advances to other investments	236	29,444
Investment in mortgage receivables	(11,211)	(75,063)
Collection of mortgage and other financing receivables	108	38,232
Proceeds from sale of properties	122,821	146,218
Net cash flow used for investing activities	(75,961)	(219,602)
Cash flow from financing activities:
Principal payments on debt, excluding normal amortization of rental property debt	(49,187)	(157,928)
Principal payments on rental property debt	(8,481)	(7,244)
Proceeds from mortgage loan financings	0	19,000
Proceeds from unsecured revolving credit facility, net	0	128,000
Financing origination costs	(6,041)	(19,273)
Payment of early extinguishment of debt charges	0	(6,955)
Contributions from noncontrolling interests	13	891
Redemption/distribution of noncontrolling interests	(8,870)	(59,361)
Dividends paid	(446,617)	(396,182)
Proceeds from issuance of stock, net	3,727	14,926
Repurchase of preferred stock	(1,491)	(3,441)
Shares repurchased for employee tax withholding on equity awards	(16,239)	(13,549)
Change in tenants' security deposits	2,171	2,890
Net cash flow used for financing activities	(531,015)	(697,286)
Net change in cash, cash equivalents and restricted cash	274,433	(211,132)
Cash, cash equivalents and restricted cash, beginning of the period	149,829	334,663
Cash, cash equivalents and restricted cash, end of the period	424,262	123,531
Interest paid, including payment of early extinguishment of debt charges of $0 and $6,955, respectively (net of capitalized interest of $1,705 and $445, respectively)	180,664	186,193
Income taxes paid, net of refunds	60,235	2,461
Distributions paid to common and preferred unitholders	(446,617)	(396,182)
Senior Unsecured Notes [Member]
Cash flow from financing activities:
Proceeds from unsecured debt	0	1,250,000
Repayments of unsecured notes	0	(1,449,060)
Joint Ventures [Member]
Adjustments to reconcile net income to net cash flow provided by operating activities:
Equity in income, net	(57,589)	(94,060)
Other Real Estate Investments [Member]
Adjustments to reconcile net income to net cash flow provided by operating activities:
Equity in income, net	(8,741)	(15,491)
Kimco Realty OP, LLC [Member]
Cash flow from operating activities:
Net income	523,836	161,603
Adjustments to reconcile net income to net cash flow provided by operating activities:
Depreciation and amortization	382,983	380,324
Impairment charges	14,043	21,758
Straight-line rental income adjustments, net	(17,458)	(24,776)
Amortization of above-market and below-market leases, net	(13,969)	(10,087)
Amortization of deferred financing costs and fair value debt adjustments, net	(6,999)	(26,139)
Early extinguishment of debt charges	0	7,658
Equity award expense	25,334	20,185
Gain on sale of properties	(52,376)	(10,958)
(Gain)/loss on marketable securities, net	(17,642)	215,194
Change in fair value of embedded derivative liability	7,000	0
Distributions from joint ventures and other investments	54,875	66,875
Change in accounts and notes receivable, net	32,584	13,826
Change in other operating assets and liabilities, net	48,712	33,534
Change in other operating assets and liabilities, net	(33,184)	(33,690)
Net cash flow provided by operating activities	881,409	705,756
Cash flow from investing activities:
Acquisition of operating real estate and other related net assets	(269,499)	(161,171)
Improvements to operating real estate	(179,145)	(128,592)
Investment in marketable securities	(3,102)	(3,348)
Proceeds from sale of marketable securities	291,341	800
Investment in cost method investment	(1,532)	(4,497)
Investments in and advances to real estate joint ventures	(21,408)	(80,496)
Reimbursements of investments in and advances to real estate joint ventures	9,024	31,540
Investments in and advances to other investments	(13,594)	(12,669)
Reimbursements of investments in and advances to other investments	236	29,444
Investment in mortgage receivables	(11,211)	(75,063)
Collection of mortgage and other financing receivables	108	38,232
Proceeds from sale of properties	122,821	146,218
Net cash flow used for investing activities	(75,961)	(219,602)
Cash flow from financing activities:
Principal payments on debt, excluding normal amortization of rental property debt	(49,187)	(157,928)
Principal payments on rental property debt	(8,481)	(7,244)
Proceeds from mortgage loan financings	0	19,000
Proceeds from unsecured revolving credit facility, net	0	128,000
Financing origination costs	(6,041)	(19,273)
Payment of early extinguishment of debt charges	0	(6,955)
Contributions from noncontrolling interests	13	891
Redemption/distribution of noncontrolling interests	(8,870)	(59,361)
Proceeds from issuance of stock, net	3,727	14,926
Repurchase of preferred stock	(1,491)	(3,441)
Shares repurchased for employee tax withholding on equity awards	(16,239)	(13,549)
Change in tenants' security deposits	2,171	2,890
Net cash flow used for financing activities	(531,015)	(697,286)
Net change in cash, cash equivalents and restricted cash	274,433	(211,132)
Cash, cash equivalents and restricted cash, beginning of the period	149,829	334,663
Cash, cash equivalents and restricted cash, end of the period	424,262	123,531
Interest paid, including payment of early extinguishment of debt charges of $0 and $6,955, respectively (net of capitalized interest of $1,705 and $445, respectively)	180,664	186,193
Income taxes paid, net of refunds	60,235	2,461
Kimco Realty OP, LLC [Member] | Senior Unsecured Notes [Member]
Cash flow from financing activities:
Proceeds from unsecured debt	0	1,250,000
Repayments of unsecured notes	0	(1,449,060)
Kimco Realty OP, LLC [Member] | Joint Ventures [Member]
Adjustments to reconcile net income to net cash flow provided by operating activities:
Equity in income, net	(57,589)	(94,060)
Kimco Realty OP, LLC [Member] | Other Real Estate Investments [Member]
Adjustments to reconcile net income to net cash flow provided by operating activities:
Equity in income, net	$ (8,741)	$ (15,491)