Condensed Consolidated Balance Sheets (Current Period Unaudited) (Parentheticals) - USD ($) $ in Thousands		Mar. 31, 2023	Dec. 31, 2022
Real estate, accumulated depreciation		$ 3,523,503	$ 3,417,414
Total assets	[1]	17,961,229	17,826,122
Total liabilities	[1]	$ 8,082,389	$ 8,086,280
Preferred stock, par value (in dollars per share)		$ 1.00	$ 1.00
Preferred stock, shares authorized (in shares)		7,054,000	7,054,000
Preferred stock, shares issued (in shares)		19,421	19,435
Preferred stock, shares outstanding (in shares)		19,421	19,435
Preferred stock, liquidation preference		$ 485,536	$ 489,868
Common stock, par value (in dollars per share)		$ 0.01	$ 0.01
Common stock, shares authorized (in shares)		750,000,000	750,000,000
Common stock, shares issued (in shares)		619,891,809	618,483,565
Common stock, shares outstanding (in shares)		619,891,809	618,483,565
Variable Interest Entity, Primary Beneficiary [Member] | Nonrecourse [Member]
Total liabilities		$ 198,959	$ 199,132
Variable Interest Entity, Primary Beneficiary [Member] | Asset Pledged as Collateral [Member]
Total assets		435,118	436,605
Kimco Realty OP, LLC [Member]
Real estate, accumulated depreciation		3,523,503	3,417,414
Total assets	[1]	17,961,229	17,826,122
Total liabilities		$ 8,082,389	$ 8,086,280
Preferred units, issued (in shares)		19,421	19,435
Preferred units, outstanding (in shares)		19,421	19,435
Common units, issued (in shares)		619,891,809	618,483,565
Common units, outstanding (in shares)		619,891,809	618,483,565
Kimco Realty OP, LLC [Member] | Variable Interest Entity, Primary Beneficiary [Member] | Asset Pledged as Collateral [Member]
Total assets		$ 435,118	$ 436,605

[1] Total assets include restricted assets of consolidated variable interest entities (“VIEs”) at March 31, 2023 and December 31, 2022 of $435,118 and $436,605, respectively. Total liabilities include non-recourse liabilities of consolidated VIEs at March 31, 2023 and December 31, 2022 of $198,959 and $199,132, respectively. See Footnote 12 of the Notes to Condensed Consolidated Financial Statements.