Condensed Consolidated Statements of Changes in Equity (Unaudited) - USD ($) shares in Thousands, $ in Thousands	Kimco Realty OP, LLC [Member] Preferred Stock [Member]	Kimco Realty OP, LLC [Member] Common Stock [Member]	Kimco Realty OP, LLC [Member] AOCI Attributable to Parent [Member]	Kimco Realty OP, LLC [Member] Parent [Member]	Kimco Realty OP, LLC [Member] Noncontrolling Interest [Member]	Kimco Realty OP, LLC [Member]	Preferred Stock [Member]	Common Stock [Member]	AOCI Attributable to Parent [Member]	Parent [Member]	Noncontrolling Interest [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	Total
Balance (in shares) at Dec. 31, 2021	20	616,659					20	616,659
Balance at Dec. 31, 2021	$ 472,533	$ 9,424,640	$ 2,216	$ 9,899,389	$ 210,793	$ 10,110,182	$ 20	$ 6,167	$ 2,216	$ 9,899,389	$ 210,793	$ 9,591,871	$ 299,115	$ 10,110,182
Contributions from noncontrolling interests	0	0	0	0	891	891	0	0	0	0	891	0	0	891
Net income (loss)	6,354	230,948	0	237,302	(1,343)	235,959	0	0	0	237,302	(1,343)	0	237,302	235,959
Redeemable noncontrolling interests income	0	0	0	0	(333)	(333)	0	0	0	0	(333)	0	0	(333)
Preferred dividends, net	(6,354)	0	0	(6,354)	0	(6,354)	0	0	0	(6,354)	0	0	(6,354)	(6,354)
Dividends declared to common shares	0	(117,404)	0	(117,404)	0	(117,404)	0	0	0	(117,404)	0	0	(117,404)	(117,404)
Distributions to noncontrolling interests	$ 0	$ 0	0	0	(4,340)	(4,340)	$ 0	$ 0	0	0	(4,340)	0	0	(4,340)
Issuance of common stock (in shares)	0	1,712					0	1,712
Issuance of common stock	$ 0	$ 0	0	0	0	0	$ 0	$ 17	0	0	0	(17)	0	0
Surrender of restricted common stock (in shares)	0	(570)					0	(570)
Surrender of restricted common stock	$ 0	$ (13,444)	0	(13,444)	0	(13,444)	$ 0	$ (6)	0	(13,444)	0	(13,438)	0	(13,444)
Exercise of common stock options (in shares)	0	128					0	128
Exercise of common stock options	$ 0	$ 2,568	0	2,568	0	2,568	$ 0	$ 1	0	2,568	0	2,567	0	2,568
Amortization of equity awards	$ 0	$ 7,437	0	7,437	0	7,437	$ 0	$ 0	0	7,437	0	7,437	0	7,437
Redemption/conversion of noncontrolling interests (in shares)	0	(73)					0	(73)
Redemption/conversion of noncontrolling interests	$ 0	$ 1,536	0	1,536	(1,536)	0	$ 0	$ 1	0	1,536	(1,536)	1,535	0	0
Redemption/conversion of noncontrolling interests (in shares)	0	73					(0)	73
Redemption/conversion of noncontrolling interests	$ (0)	$ (1,536)	(0)	(1,536)	1,536	(0)	$ (0)	$ (1)	(0)	(1,536)	1,536	(1,535)	(0)	(0)
Balance (in shares) at Mar. 31, 2022	20	618,002					20	618,002
Balance at Mar. 31, 2022	$ 472,533	$ 9,536,281	2,216	10,011,030	204,132	10,215,162	$ 20	$ 6,180	2,216	10,011,030	204,132	9,589,955	412,659	10,215,162
Surrender of restricted common units (in shares)	(0)	570					(0)	570
Balance (in shares) at Dec. 31, 2022	19	618,484					19	618,484
Balance at Dec. 31, 2022	$ 469,027	$ 9,035,900	10,581	9,515,508	131,401	9,646,909	$ 19	$ 6,185	10,581	9,515,508	131,401	9,618,271	(119,548)	9,646,909
Net income (loss)	6,251	283,512	0	289,763	4,013	293,776	0	0	0	289,763	4,013	0	289,763	293,776
Redeemable noncontrolling interests income	0	0	0	0	(1,546)	(1,546)	0	0	0	0	(1,546)	0	0	(1,546)
Preferred dividends, net	(6,251)	0	0	(6,251)	0	(6,251)	0	0	0	(6,251)	0	0	(6,251)	(6,251)
Dividends declared to common shares	0	(142,574)	0	(142,574)	0	(142,574)	0	0	0	(142,574)	0	0	(142,574)	(142,574)
Distributions to noncontrolling interests	$ 0	$ 0	0	0	(1,063)	(1,063)	$ 0	$ 0	0	0	(1,063)	0	0	(1,063)
Issuance of common stock (in shares)	0	1,988					0	1,988
Issuance of common stock	$ 0	$ 0	0	0	0	0	$ 0	$ 20	0	0	0	(20)	0	0
Surrender of restricted common stock (in shares)	0	753					0	(753)
Surrender of restricted common stock	$ 0	$ (16,097)	0	(16,097)	0	(16,097)	$ 0	$ (8)	0	(16,097)	0	(16,089)	0	(16,097)
Exercise of common stock options (in shares)	0	173					0	173
Exercise of common stock options	$ 0	$ 3,727	0	3,727	0	3,727	$ 0	$ 2	0	3,727	0	3,725	0	3,727
Amortization of equity awards	$ 0	$ 9,346	0	9,346	0	9,346	$ 0	$ 0	0	9,346	0	9,346	0	9,346
Repurchase of preferred stock (in shares)							0	0
Repurchase of preferred stock							$ 0	$ 0	0	(320)	0	(320)	0	(320)
Balance (in shares) at Mar. 31, 2023	19	619,892					19	619,892
Balance at Mar. 31, 2023	$ 468,707	$ 9,173,814	10,581	9,653,102	132,805	9,785,907	$ 19	$ 6,199	$ 10,581	$ 9,653,102	$ 132,805	$ 9,614,913	$ 21,390	$ 9,785,907
Repurchase of preferred units	$ (320)	$ 0	$ 0	$ (320)	$ 0	$ (320)
Surrender of restricted common units (in shares)	0	(753)					(0)	753