Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2025	Jun. 30, 2024
Cash flow from operating activities:
Net income	$ 299,445	$ 113,014
Adjustments to reconcile net income to net cash flow provided by operating activities:
Depreciation and amortization	314,776	302,867
Impairment charges	8,179	3,902
Straight-line rental income adjustments, net	(10,564)	(12,934)
Amortization of above-market and below-market leases, net	(12,644)	(10,345)
Amortization of deferred financing costs and fair value debt adjustments, net	667	(910)
Equity award expense	18,349	18,293
Gain on sale of properties	(39,809)	(393)
Loss on marketable securities, net	11	27,692
Change in fair value of embedded derivative liability	(2,459)	3,079
Distributions from joint ventures and other investments	44,661	52,664
Change in accounts and notes receivable, net	11,599	29,459
Change in accounts payable and accrued expenses	(25,741)	9,603
Change in other operating assets and liabilities, net	(28,133)	(14,157)
Net cash flow provided by operating activities	529,216	470,150
Cash flow from investing activities:
Acquisition of operating real estate and other related net assets	(106,244)	0
Improvements to operating real estate	(138,210)	(128,594)
Acquisition of RPT Realty	0	(149,103)
Investment in marketable securities	(1,003)	(11)
Proceeds from sale of marketable securities	500	300,763
Investments in preferred stock and cost method investments	(5,361)	(36)
Investments in and advances to real estate joint ventures	(2,909)	(3,182)
Reimbursements of investments in and advances to real estate joint ventures	14,186	18,159
Investments in and advances to other investments	(3,012)	(3,913)
Reimbursements of investments in and advances to other investments	1,195	2,856
Investment in mortgage and other financing receivables	(46,170)	(178,934)
Collection of mortgage and other financing receivables	50,144	61,122
Proceeds from sale of properties	2,119	70,341
Proceeds from insurance casualty claims	1,630	0
Net cash flow used for investing activities	(233,135)	(10,532)
Cash flow from financing activities:
Principal payments on debt, excluding normal amortization of rental property debt	(48,844)	(11,774)
Principal payments on rental property debt	(6,200)	(4,963)
Proceeds from unsecured revolving credit facility, net	0	220,000
Financing origination costs	(6,619)	(1,563)
Redemption/distribution of noncontrolling interests	(5,334)	(8,318)
Dividends paid	(354,311)	(338,085)
Repurchase of preferred stock/units	(3,480)	0
Repurchase of common stock/units	(58,844)	0
Shares/Units repurchased for employee tax withholding on equity awards	(11,644)	(14,665)
Principal payments under finance lease obligations	(24,362)	0
Change in tenants' security deposits	2,157	1,248
Net cash flow used for financing activities	(757,986)	(1,115,820)
Net change in cash, cash equivalents and restricted cash	(461,905)	(656,202)
Cash, cash equivalents and restricted cash, beginning of the period	689,731	783,757
Cash, cash equivalents and restricted cash, end of the period	227,826	127,555
Interest paid (net of capitalized interest of $1,166 and $1,153, respectively)	167,401	150,906
Income taxes paid, net of refunds	25,773	57,805
Unsecured Term Loan [Member]
Cash flow from financing activities:
Proceeds from unsecured debt	0	510,000
Repayments of unsecured notes	0	(310,000)
Senior Unsecured Notes [Member]
Cash flow from financing activities:
Proceeds from unsecured debt	500,000	0
Repayments of unsecured notes	(740,505)	(1,157,700)
Joint Ventures [Member]
Adjustments to reconcile net income to net cash flow provided by operating activities:
Equity in income, net	(46,673)	(42,432)
Other Real Estate Investments [Member]
Adjustments to reconcile net income to net cash flow provided by operating activities:
Equity in income, net	(2,448)	(9,252)
Kimco Realty OP, LLC [Member]
Cash flow from operating activities:
Net income	299,445	113,014
Adjustments to reconcile net income to net cash flow provided by operating activities:
Depreciation and amortization	314,776	302,867
Impairment charges	8,179	3,902
Straight-line rental income adjustments, net	(10,564)	(12,934)
Amortization of above-market and below-market leases, net	(12,644)	(10,345)
Amortization of deferred financing costs and fair value debt adjustments, net	667	(910)
Equity award expense	18,349	18,293
Gain on sale of properties	(39,809)	(393)
Loss on marketable securities, net	11	27,692
Change in fair value of embedded derivative liability	(2,459)	3,079
Distributions from joint ventures and other investments	44,661	52,664
Change in accounts and notes receivable, net	11,599	29,459
Change in accounts payable and accrued expenses	(25,741)	9,603
Change in other operating assets and liabilities, net	(28,133)	(14,157)
Net cash flow provided by operating activities	529,216	470,150
Cash flow from investing activities:
Acquisition of operating real estate and other related net assets	(106,244)	0
Improvements to operating real estate	(138,210)	(128,594)
Acquisition of RPT Realty	0	(149,103)
Investment in marketable securities	(1,003)	(11)
Proceeds from sale of marketable securities	500	300,763
Investments in preferred stock and cost method investments	(5,361)	(36)
Investments in and advances to real estate joint ventures	(2,909)	(3,182)
Reimbursements of investments in and advances to real estate joint ventures	14,186	18,159
Investments in and advances to other investments	(3,012)	(3,913)
Reimbursements of investments in and advances to other investments	1,195	2,856
Investment in mortgage and other financing receivables	(46,170)	(178,934)
Collection of mortgage and other financing receivables	50,144	61,122
Proceeds from sale of properties	2,119	70,341
Proceeds from insurance casualty claims	1,630	0
Net cash flow used for investing activities	(233,135)	(10,532)
Cash flow from financing activities:
Principal payments on debt, excluding normal amortization of rental property debt	(48,844)	(11,774)
Principal payments on rental property debt	(6,200)	(4,963)
Proceeds from unsecured revolving credit facility, net	0	220,000
Financing origination costs	(6,619)	(1,563)
Redemption/distribution of noncontrolling interests	(4,705)	(8,318)
Dividends paid	(354,940)	(338,085)
Repurchase of preferred stock/units	(3,480)	0
Repurchase of common stock/units	(58,844)	0
Shares/Units repurchased for employee tax withholding on equity awards	(11,644)	(14,665)
Principal payments under finance lease obligations	(24,362)	0
Change in tenants' security deposits	2,157	1,248
Net cash flow used for financing activities	(757,986)	(1,115,820)
Net change in cash, cash equivalents and restricted cash	(461,905)	(656,202)
Cash, cash equivalents and restricted cash, beginning of the period	689,731	783,757
Cash, cash equivalents and restricted cash, end of the period	227,826	127,555
Interest paid (net of capitalized interest of $1,166 and $1,153, respectively)	167,401	150,906
Income taxes paid, net of refunds	25,773	57,805
Kimco Realty OP, LLC [Member] | Unsecured Term Loan [Member]
Cash flow from financing activities:
Proceeds from unsecured debt	0	510,000
Repayments of unsecured notes	0	(310,000)
Kimco Realty OP, LLC [Member] | Senior Unsecured Notes [Member]
Cash flow from financing activities:
Proceeds from unsecured debt	500,000	0
Repayments of unsecured notes	(740,505)	(1,157,700)
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	(46,673)	(42,432)
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	$ (2,448)	$ (9,252)