Note 7 - Investment and Advances in Real Estate Joint Ventures (Details)	12 Months Ended								12 Months Ended		12 Months Ended				12 Months Ended		1 Months Ended	12 Months Ended				12 Months Ended						12 Months Ended			12 Months Ended										12 Months Ended										12 Months Ended					1 Months Ended	12 Months Ended			12 Months Ended								12 Months Ended											12 Months Ended				12 Months Ended							12 Months Ended			12 Months Ended		12 Months Ended
	Dec. 31, 2013 USD ($)	Dec. 31, 2012 USD ($)	Dec. 31, 2011 USD ($)	Dec. 31, 2013 KimPru and KimPru II [Member] Parent Company [Member] USD ($)	Dec. 31, 2013 KimPru and KimPru II [Member] USD ($)		Dec. 31, 2012 KimPru and KimPru II [Member]		Dec. 31, 2012 KimPru [Member] Sold [Member] USD ($)	Dec. 31, 2011 KimPru [Member] Sold [Member]	Dec. 31, 2011 KimPru [Member] Potential Foreclosure [Member] USD ($)	Dec. 31, 2012 KimPru [Member] Parent Company [Member] USD ($)	Dec. 31, 2011 KimPru [Member] Parent Company [Member] USD ($)	Dec. 31, 2012 KimPru [Member] Potential Foreclosure [Member]	Dec. 31, 2011 KimPru [Member] USD ($)	Dec. 31, 2013 KimPru [Member]	Jun. 30, 2013 Intown [Member] USD ($)	Dec. 31, 2013 Intown [Member] USD ($)		Dec. 31, 2012 Intown [Member]		Dec. 31, 2013 Intown [Member] Minimum [Member]	Dec. 31, 2013 Intown [Member] Maximum [Member]	Dec. 31, 2013 Other Joint Venture Programs [Member] Sold [Member] Operating Properties [Member]	Dec. 31, 2013 Other Joint Venture Programs [Member] Sold [Member]	Dec. 31, 2012 Other Joint Venture Programs [Member] Sold [Member]	Dec. 31, 2012 Other Joint Venture Programs [Member] Pending Sale [Member]	Dec. 31, 2012 Other Joint Venture Programs [Member] Parent Company [Member] USD ($)	Dec. 31, 2013 Other Joint Venture Programs [Member] MEXICO Operating Properties [Member] USD ($)	Dec. 31, 2013 Other Joint Venture Programs [Member] MEXICO	Dec. 31, 2013 Other Joint Venture Programs [Member] Operating Properties [Member] USD ($)	Dec. 31, 2013 Other Joint Venture Programs [Member] USD ($)		Dec. 31, 2012 Other Joint Venture Programs [Member] USD ($)		Dec. 31, 2013 Kimco Income Fund [Member] USD ($)		Dec. 31, 2012 Kimco Income Fund [Member]		Dec. 31, 2011 KIR [Member] Sold [Member] Operating Properties [Member]	Dec. 31, 2013 KIR [Member] Parent Company [Member] USD ($)	Dec. 31, 2011 KIR [Member] Parent Company [Member] USD ($)	Dec. 31, 2011 KIR [Member] Operating Properties [Member] USD ($)	Dec. 31, 2013 KIR [Member] USD ($)		Dec. 31, 2012 KIR [Member]		Dec. 31, 2013 KIR [Member] Minimum [Member]	Dec. 31, 2012 KIR [Member] Maximum [Member]	Dec. 31, 2011 UBS Programs [Member] Sold [Member]	Dec. 31, 2011 UBS Programs [Member] Potential Foreclosure [Member] Parent Company [Member] USD ($)	Dec. 31, 2011 UBS Programs [Member] Potential Foreclosure [Member] USD ($)	Dec. 31, 2012 UBS Programs [Member] Parent Company [Member] USD ($)	Dec. 31, 2011 UBS Programs [Member] Parent Company [Member] USD ($)	Dec. 31, 2013 UBS Programs [Member] Operating Properties [Member] USD ($)	Jun. 30, 2013 UBS Programs [Member] USD ($)	Dec. 31, 2012 UBS Programs [Member] USD ($)	Dec. 31, 2011 UBS Programs [Member] USD ($)	Dec. 31, 2012 Other Institutional Programs [Member] Encumbered [Member] Sold [Member] Operating Properties [Member]	Dec. 31, 2012 Other Institutional Programs [Member] Encumbered [Member] Operating Properties [Member] USD ($)	Dec. 31, 2012 Other Institutional Programs [Member] Parent Company [Member] USD ($)	Dec. 31, 2013 Other Institutional Programs [Member] Operating Properties [Member] USD ($)	Dec. 31, 2012 Other Institutional Programs [Member] Operating Properties [Member] USD ($)	Dec. 31, 2012 Other Institutional Programs [Member] USD ($)		Dec. 31, 2013 Other Institutional Programs [Member]		Dec. 31, 2012 BIG Shopping Centers [Member] Foreclosed On [Member] Parent Company [Member] USD ($)	Dec. 31, 2012 BIG Shopping Centers [Member] Foreclosed On [Member] USD ($)	Dec. 31, 2013 BIG Shopping Centers [Member] USD ($)		Dec. 31, 2012 BIG Shopping Centers [Member]		Dec. 31, 2013 Kimstone [Member]		Jun. 30, 2013 Kimstone [Member]	Dec. 31, 2012 Kimstone [Member]		Dec. 31, 2012 RioCan [Member] USD ($)	Dec. 31, 2013 RioCan [Member]	Oct. 31, 2001 RioCan [Member]	Dec. 31, 2012 RioCan [Member] Minimum [Member]	Dec. 31, 2011 KimPru II [Member] Foreclosed On [Member] Operating Properties [Member] USD ($)	Dec. 31, 2011 KimPru II [Member] Parent Company [Member] USD ($)	Dec. 31, 2012 KUBS [Member] Sold [Member]	Dec. 31, 2013 KUBS [Member]		Dec. 31, 2012 KUBS [Member]		Dec. 31, 2011 Canadian Hotel Portfolio [Member] USD ($)	Dec. 31, 2011 Canadian Hotel Portfolio [Member] CAD	Dec. 31, 2013 Sold [Member] Mexico and Chile [Member] Operating Properties [Member]	Dec. 31, 2013 Parent Company [Member] USD ($)	Jun. 30, 2013 Blackstone [Member] UBS Programs [Member]	Dec. 31, 2013 Mexico and Chile [Member] Operating Properties [Member] USD ($)	Dec. 31, 2013 Maximum [Member]
Note 7 - Investment and Advances in Real Estate Joint Ventures (Details) [Line Items]
Number of Joint Ventures					4											3										2						2		3																														2																	3
Number of Accounts					4
Sales of Real Estate																	$ 735,000,000												$ 603,500,000		$ 132,100,000	$ 228,800,000		$ 118,000,000										$ 30,000,000																$ 75,500,000			$ 127,000,000																																$ 341,900,000
Transfer Mortgage Payable		17,083,000															609,200,000
Deferred Gain on Sale of Property																	21,700,000
Guarantor Obligations, Current Carrying Value																		139,700,000
Debt Instrument, Basis Spread on Variable Rate																						1.15%
Debt Instrument, Interest Rate, Stated Percentage																							5.00%
Debt Instrument, Term																		5 years
Number of Preferred Equity Investments																																1
Number of Real Estate Properties					60	[1],[2],[3]	61	[1],[2],[3]		2,000,000				2					[4]	138	[4]			6	2	1	1		10	84		75	[5],[6],[7]	87	[5],[6],[7]	12	[1],[8]	12	[1],[8]	1				57	[1],[10],[9]	58	[1],[10],[9]			1									2				4	58	[1],[11]	56	[1],[11]			21	[1],[12],[13]	22	[1],[12],[13]	39	[1],[14]			[1],[14]	45	45			1		2		[1],[13],[14],[15]	40	[1],[13],[14],[15]			20
Gains (Losses) on Sales of Investment Real Estate																															6,100,000	30,900,000		8,300,000							3,000,000			6,100,000																																																			22,900,000
Business Acquisition, Percentage of Voting Interests Acquired																																				24.24%								3.57%
Payments to Acquire Equity Method Investments					15,800,000																															38,300,000								48,400,000												1,100,000,000
Payments to Acquire Real Estate	354,287,000	442,541,000	268,282,000																																																				32,700,000							14,200,000
Business Combination, Step Acquisition, Equity Interest in Acquiree, Remeasurement Gain	21,711,000	15,555,000	569,000																																																											500,000
Gains (Losses) on Extinguishment of Debt													4,400,000		29,600,000																																																							13,700,000																							2,400,000
Impairment of Real Estate	59,600,000			600,000	4,000,000				6,500,000		53,600,000	800,000	6,000,000															6,400,000	9,400,000		1,500,000			12,800,000								2,100,000	4,600,000								800,000	5,000,000	2,200,000	1,900,000			13,000,000	9,700,000			800,000			6,500,000				900,000	9,000,000														7,300,000	1,000,000						5,200,000
Equity Method Investment, Ownership Percentage					15.00%	[1],[2],[3]	15.00%	[1],[2],[3]											[4]		[4]												[5],[6],[7]		[5],[6],[7]	39.50%	[1],[8]	15.20%	[1],[8]					48.60%	[1],[10],[9]	45.00%	[1],[10],[9]									33.30%									[1],[11]		[1],[11]			37.90%	[1],[12],[13]	37.70%	[1],[12],[13]	33.30%	[1],[14]			[1],[14]	50.00%	50.00%	50.00%						[1],[13],[14],[15]	17.90%	[1],[13],[14],[15]
Noncontrolling Interest, Ownership Percentage by Parent																																																																												33.30%																		66.70%		100.00%
Release of Liability of Debt From Sale																													301,200,000
Gain (Loss) on Sale of Properties, before Applicable Income Taxes																													78,200,000
Income Tax Expense (Benefit)	34,520,000	16,922,000	25,789,000																										25,100,000
Other Income																																																												2,600,000			1,100,000
Real Estate Partnership Investment Subsidiaries, Net Income (Loss) before Tax																																																																															7,500,000
Real Estate Tax Expense	117,563,000	110,747,000	104,451,000																																																																												1,500,000
Equity Method Investment, Net Sales Proceeds (in Dollars)																																																																																										2,400,000	2,500,000
Equity Method Investment, Net Sales Proceeds																																																																																										2,400,000	2,500,000
Percent of Income from Continuing Operations																																																10.00%	10.00%																																	10.00%
Other Liabilities	357,764,000	333,962,000																														41,500,000		21,300,000
Equity Method Investments	$ 1,257,010,000	$ 1,428,155,000

[1] 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.

[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] During the year ended December 31, 2013, the Company purchased the remaining interest in an operating property for a purchase price of $15.8 million. As a result of this transaction, KimPru recognized an impairment charge of $4.0 million, of which the Company's share was $0.6 million.

[4] The Company's share of this investment was subject to fluctuation and dependent upon property cash flows. During June 2013, the Intown portfolio was sold for a sales price of $735.0 million which included the assignment of $609.2 million in debt. This transaction resulted in a deferred gain to the Company of $21.7 million. The Company maintains its guarantee on a portion of the debt ($139.7 million as of December 31, 2013) assumed by the buyer. The guarantee is collateralized by the buyer's ownership interest in the portfolio. The Company is entitled to a guarantee fee, for the initial term of the loan, which is scheduled to mature in December 2015. The guarantee fee is calculated based upon the difference between LIBOR plus 1.15% and 5.0% per annum multiplied by the outstanding amount of the loan. Additionally, the Company has entered into a commitment to provide financing up to the outstanding amount of the guaranteed portion of the loan for five years past the date of maturity. This commitment can be in the form of extensions with the current lender, loans from a new lender or financing directly from the Company to the buyer. Due to this continued involvement, the Company deferred its gain until such time that the guarantee and commitment expire.

[5] During the year ended December 31, 2013, the Company amended one of its Canadian preferred equity investment agreements to restructure the investment as a pari passu joint venture in which the Company holds a noncontrolling interest. As a result of this transaction, the Company continues to account for its investment in this joint venture under the equity method of accounting and includes this investment in Investments and advances to real estate joint ventures within the Company's Consolidated Balance Sheets.

[6] During the year ended December 31, 2013, two joint ventures in which the Company held noncontrolling interests sold two operating properties to the Company, in separate transactions, for an aggregate sales price of $228.8 million. The Company evaluated these transactions pursuant to the FASB's Consolidation guidance. As such, the Company recognized an aggregate gain of $30.9 million, before income tax, from the fair value adjustment associated with its original ownership due to a change in control and now consolidates these operating properties.

[7] During the year ended December 31, 2013, joint ventures in which the Company has noncontrolling interests sold six operating properties, in separate transactions, for an aggregate sales price of $132.1 million. In connection with these transactions, the Company recognized its share of the aggregate gains of $6.1 million and aggregate impairment charges of $1.5 million.

[8] During the year ended December 31, 2013, the Company purchased an additional 24.24% interest in Kimco Income Fund for $38.3 million.

[9] During the year ended December 31, 2013, the Company purchased an additional 3.57% interest in KIR for $48.4 million.

[10] During the year ended December 31, 2013, KIR sold an operating property in Cincinnati, OH for a sales price of $30.0 million and recognized a gain of $6.1 million. The Company's share of this gain was $3.0 million.

[11] During the year ended December 31, 2013, a joint venture in which the Company held a noncontrolling interest sold an operating property to the Company for a sales price of $14.2 million. The Company evaluated this transaction pursuant to the FASB's Consolidation guidance. As such the Company recognized a gain of $0.5 million from the fair value adjustment associated with the Company's original ownership due to a change in control and now consolidates this operating property.

[12] During the year ended December 31, 2013, BIG recognized a gain on early extinguishment of debt of $13.7 million related to a property that was foreclosed on by a third party lender. The Company's share of this gain was $2.4 million.

[13] Ownership % is a blended rate

[14] During June 2013, the Company increased its ownership interest in the UBS Programs to 33.3% and simultaneously UBS transferred its remaining 66.7% ownership interest in the UBS Programs to affiliates of Blackstone Real Estate Partners VII ("Blackstone"). Both of these transactions were based on a gross purchase price of $1.1 billion. Upon completion of these transactions, Blackstone and the Company entered into a new joint venture (Kimstone) in which the Company owns a 33.3% noncontrolling interest.

[15] During the year ended December 31, 2013, UBS sold an operating property to the Company for a sales price of $32.7 million, which was equal to the remaining debt balance. The Company evaluated this transaction pursuant to the FASB's Consolidation guidance. As such the Company recognized no gain or loss from a change in control and now consolidates this operating property.