Note 4 - Investment and Advances in Real Estate Joint Ventures (Details) (USD $)	3 Months Ended		6 Months Ended												1 Months Ended	6 Months Ended			6 Months Ended				6 Months Ended																			6 Months Ended						6 Months Ended									6 Months Ended						1 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014 Sold [Member] KIR [Member] Parent Company [Member]	Jun. 30, 2014 Sold [Member] KIR [Member]	Jun. 30, 2014 Sold [Member] Other Institutional Programs [Member] Operating Properties [Member] Parent Company [Member]	Jun. 30, 2014 Sold [Member] Other Institutional Programs [Member] Operating Properties [Member]	Jun. 30, 2014 Sold [Member] Latin America Portfolio [Member] Operating Properties [Member] MEXICO Parent Company [Member]	Jun. 30, 2013 Sold [Member] Latin America Portfolio [Member] Operating Properties [Member] MEXICO Parent Company [Member]	Jun. 30, 2014 Sold [Member] Latin America Portfolio [Member] Operating Properties [Member] MEXICO	Jun. 30, 2013 Sold [Member] Latin America Portfolio [Member] Operating Properties [Member] MEXICO	Jun. 30, 2014 Sold [Member] Other Joint Venture Programs [Member] Operating Properties [Member] Parent Company [Member]	Jun. 30, 2014 Sold [Member] Other Joint Venture Programs [Member] Operating Properties [Member]	Jul. 31, 2014 Acquired [Member] Subsequent Event [Member] SEB Immobilien [Member] Operating Properties [Member]	Jun. 30, 2014 Acquired [Member] KimPru and KimPru II [Member] Operating Properties [Member] Parent Company [Member]	Jun. 30, 2014 Acquired [Member] KimPru and KimPru II [Member] Operating Properties [Member]	Jun. 30, 2013 Acquired [Member] KimPru and KimPru II [Member] Operating Properties [Member]	Jun. 30, 2014 Acquired [Member] Other Institutional Programs [Member]	Jun. 30, 2014 Assets Held-for-sale [Member] KIR [Member] Parent Company [Member]	Jun. 30, 2014 Assets Held-for-sale [Member] KIR [Member]	Jun. 30, 2014 Assets Held-for-sale [Member] Operating Properties [Member]	Jun. 30, 2013 KimPru and KimPru II [Member] Parent Company [Member]	Jun. 30, 2013 KimPru and KimPru II [Member]	Jun. 30, 2014 KimPru and KimPru II [Member]		Dec. 31, 2013 KimPru and KimPru II [Member]		Jun. 30, 2014 KimPru [Member]	Jun. 30, 2014 KIR [Member]		Dec. 31, 2013 KIR [Member]		Jun. 30, 2014 Other Institutional Programs [Member]		Dec. 31, 2013 Other Institutional Programs [Member]		Jun. 30, 2014 Latin America Portfolio [Member]		Dec. 31, 2013 Latin America Portfolio [Member]		Jun. 30, 2013 Other Joint Venture Programs [Member] Parent Company [Member]	Jun. 30, 2013 Other Joint Venture Programs [Member]	Jun. 30, 2014 Other Joint Venture Programs [Member]		Dec. 31, 2013 Other Joint Venture Programs [Member]		Jun. 30, 2014 Kimco Income Fund [Member]		Dec. 31, 2013 Kimco Income Fund [Member]		Jun. 30, 2014 Kimstone [Member]		Dec. 31, 2013 Kimstone [Member]		Jun. 30, 2013 Kimstone [Member]	Jun. 30, 2013 BIG Shopping Centers [Member] Parent Company [Member]	Jun. 30, 2013 BIG Shopping Centers [Member]	Jun. 30, 2014 BIG Shopping Centers [Member]		Dec. 31, 2013 BIG Shopping Centers [Member]		Jun. 30, 2013 Intown [Member]
Note 4 - Investment and Advances in Real Estate Joint Ventures (Details) [Line Items]
Number of Joint Ventures																									4				3
Number of Accounts																									4
Number of Real Estate Properties						2					9	9		8	10			1	3		2	150			60	[1],[2],[3]	60	[1],[2],[3]		55	[3],[4]	57	[3],[4]	52	[3],[5],[6]	56	[3],[5],[6]	19	[7]	28	[7]			67	[8]	75	[8]		[3],[9]	12	[3],[9]	39	[3]	39	[3]				21	[10],[3]	21	[10],[3]
Sales of Real Estate						$ 17,700,000		$ 11,300,000			$ 175,000,000	$ 274,000,000		$ 98,400,000																																																	$ 735,000,000
Gains (Losses) on Sales of Investment Real Estate					1,100,000		100,000	300,000	30,700,000	24,300,000		48,600,000	17,700,000	33,700,000
Payments to Acquire Real Estate			362,160,000	145,303,000											275,800,000	1,600,000	10,500,000		93,200,000
Business Combination, Step Acquisition, Equity Interest in Acquiree, Remeasurement Gain	65,598,000	(1,459,000)	69,342,000	21,711,000															3,700,000																													65,600,000
Payments to Acquire Equity Method Investments																																																408,000,000
Equity Method Investment, Ownership Percentage																									15.00%	[1],[2],[3]	15.00%	[1],[2],[3]		48.60%	[3],[4]	48.60%	[3],[4]		[3],[5],[6]		[3],[5],[6]		[7]		[7]				[8]		[8]		[3],[9]	39.50%	[3],[9]	33.30%	[3]	33.30%	[3]	33.30%			37.90%	[10],[3]	37.90%	[10],[3]
Impairment of Real Estate																				2,300,000	4,000,000		600,000	4,000,000																		900,000	1,800,000
Gains (Losses) on Extinguishment of Debt																																																									2,400,000	13,700,000
Payments to Acquire Real Estate Held-for-investment																								15,800,000
Transfer Mortgage Payable																																																															609,200,000
Deferred Gain on Sale of Property																																																															21,700,000
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Liabilities															$ 193,600,000

[1] During the six months ended June 30, 2014, KimPru acquired an additional parcel within one of its existing operating properties in Elk Grove, CA for a purchase price of $10.5 million. The Company's capital contribution for this acquisition was $1.6 million.

[2] This venture represents four separate joint ventures, with four separate accounts managed by Prudential Real Estate Investors ("PREI"), three of these ventures are collectively referred to as KimPru and the remaining venture is referred to as KimPru II.

[3] The Company manages these joint venture investments and, where applicable, earns acquisition fees, leasing commissions, property management fees, asset management fees and construction management fees.

[4] During the six months ended June 30, 2014, KIR sold two operating properties for a sales price of $17.7 million. In connection with the two dispositions, the Company recognized its share of an aggregate net gain of $1.1 million.

[5] During the six months ended June 30, 2014, the Company acquired three properties from a joint venture in which the Company has a noncontrolling interest for a total sales price of $93.2 million. The Company evaluated this transaction pursuant to the FASB's Consolidation guidance. As such, the Company recognized a gain of $3.7 million from the fair value adjustment associated with the Company's original ownership due to a change in control and now consolidates these operating properties.

[6] During the six months ended June 30, 2014, a joint venture in which the Company holds a noncontrolling interest sold an operating property for a sales price of $11.3 million and recognized a gain of $0.3 million. The Company's share of this gain was $0.1 million.

[7] During the six months ended June 30, 2014, the Company sold its noncontrolling interest in nine operating properties located throughout Mexico for a sales price of $175.0 million. The Company recognized a gain of $30.7 million, before income taxes, associated with these transactions.

[8] During the six months ended June 30, 2014, a joint venture in which the Company holds a noncontrolling interest sold eight operating properties for an aggregate sales price of $98.4 million and recognized an aggregate gain of $33.7 million. The Company's share of this gain was $17.7 million.

[9] During the six months ended June 30, 2014, the Company purchased the remaining interest in KIF based on a gross fair value purchase price of $408.0 million. The Company evaluated this transaction pursuant to the FASB's Consolidation guidance. As such, the Company recognized a gain of $65.6 million from the fair value adjustment associated with the Company's original ownership due to a change in control and now consolidates these operating properties.

[10] Ownership % is a blended rate