Note 17 - Supplemental Schedule of Non-cash Investing / Financing Activities - Non-cash Investing and Financing Activities (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017		Dec. 31, 2016
Acquisition of real estate interests by assumption of mortgage debt		$ 45,299		$ 33,174
Acquisition of real estate interests through proceeds held in escrow		162,396		66,044
Proceeds deposited in escrow through sale of real estate interests	41,949	162,396		66,044
Disposition of real estate interests through the issuance of mortgage receivable	14,700
Disposition of real estate interests by foreclosure of debt	7,444			22,080
Forgiveness of debt due to foreclosure	12,415			26,000
Capital expenditures accrual	60,611	74,123		38,044
Issuance of common stock				85
Surrender of restricted common stock	4,360	5,699		7,008
Dividends payable	130,262	128,892		124,517
Change in noncontrolling interest due to liquidation of partnership		64,948
Adjustment to estimated redemption value (1)	7,521		[1]
Deemed contribution from noncontrolling interest		10,000
Increase in real estate and other assets		325,981		407,813
Increase in mortgages payable, other liabilities and noncontrolling interests		258,626		268,194
Decrease in real estate and other assets	300,299
Increase in investments in and advances to real estate joint ventures	(62,429)
Decrease in mortgages and construction loan payable, other liabilities and noncontrolling interests	$ 248,274

[1] During 2017, KIM Lincoln, a wholly owned subsidiary of the Company, and Lincoln Member entered into a joint venture agreement wherein KIM Lincoln has a 90% controlling interest and Lincoln Member has a 10% noncontrolling interest (See Footnote 4 of the Notes to Consolidated Financial Statements). During the year ended December 31, 2018, the Company recorded an adjustment of $7.5 million to the estimated redemption fair market value of this noncontrolling interest in accordance with the provisions of the joint venture agreement and ASC 480 - Accounting for Redeemable Equity Instruments. The Company's estimated fair market value of this noncontrolling interest was based upon a discounted cash flow model, for which a capitalization rate of 5.00% and discount rate of 6.00% were utilized in the model based upon unobservable rates that the Company believes to be within a reasonable range of current market rates.