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Contractual interest rate for funds borrowed, under the debt agreement.

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Period of time between issuance and maturity of debt instrument, in PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Amount of gain (loss) on sale or disposal of an equity method investment.

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This item represents the carrying amount on the entity's balance sheet of its investment in common stock of an equity method investee. This is not an indicator of the fair value of the investment, rather it is the initial cost adjusted for the entity's share of earnings and losses of the investee, adjusted for any distributions (dividends) and other than temporary impairment (OTTI) losses recognized.

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This item represents the entity's proportionate share for the period of the net income (loss) of its investee (such as unconsolidated subsidiaries and joint ventures) to which the equity method of accounting is applied. This item includes income or expense related to stock-based compensation based on the investor's grant of stock to employees of an equity method investee.

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The fair value amount of long-term debt whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission.

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The equity interest of noncontrolling shareholders, partners or other equity holders in consolidated entity.

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Net Increase or Decrease in balance of noncontrolling interest in the subsidiary during the reporting period.

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The number of real estate properties owned as of the balance sheet date.

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Amount of investments classified as other.

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Amount of distribution received from equity method investee for return of investment, classified as investing activities. Excludes distribution for return on investment, classified as operating activities.

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Carrying value as of the balance sheet date, including the current and noncurrent portions, of collateralized debt obligations (with maturities initially due after one year or beyond the operating cycle, if longer). Such obligations include mortgage loans, chattel loans, and any other borrowings secured by assets of the borrower.

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Note 8 - Other Real Estate Investments and Other Assets (Details Textual) - USD ($) $ in Thousands	1 Months Ended	12 Months Ended
	Jun. 30, 2017	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Equity Method Investments		$ 570,922	$ 483,861
Income (Loss) from Equity Method Investments, Total		71,617	60,763	$ 218,714
Secured Debt, Total		492,416	882,787
Proceeds from Equity Method Investment, Distribution, Return of Capital				191,902
Noncontrolling Interest, Period Increase (Decrease), Total			$ 64,948
Preferred Equity Investments [Member]
Number of Real Estate Properties		285
Preferred Equity Investments [Member] \| Leased Properties [Member]
Number of Real Estate Properties		273
Preferred Equity Investments [Member] \| Maximum Exposure [Member]
Equity Method Investments		$ 176,300
Preferred Equity Investment [Member]
Number of Real Estate Properties			357
Income (Loss) from Equity Method Investments, Total		28,800	$ 32,200
Equity Method Investment, Realized Gain (Loss) on Disposal, Total		10,600	$ 14,800
Secured Debt, Total		298,900
Long-term Debt, Fair Value		$ 15,100
Preferred Equity Investment [Member] \| Minimum [Member]
Debt Instrument, Term		180 days
Debt Instrument, Interest Rate, Stated Percentage		4.19%
Preferred Equity Investment [Member] \| Maximum [Member]
Debt Instrument, Term		6 years
Debt Instrument, Interest Rate, Stated Percentage		10.47%
Preferred Equity Investment [Member] \| Leased Properties [Member]
Number of Real Estate Properties			344
Preferred Equity Investment [Member] \| Maximum Exposure [Member]
Equity Method Investments			$ 201,900
AB Acquisition [Member] \| ABS Venture [Member] \| Kimsouth [Member]
Noncontrolling Interest, Ownership Percentage by Noncontrolling Owners			14.35%
AB Acquisition [Member] \| Kimco [Member] \| Kimsouth [Member]
Noncontrolling Interest, Ownership Percentage by Noncontrolling Owners			9.80%
AB Acquisition [Member] \| Colony [Member] \| Kimsouth [Member]
Noncontrolling Interest, Ownership Percentage by Noncontrolling Owners			4.30%
Albertsons [Member]
Proceeds from Equity Method Investment, Distribution, Return of Capital	$ 23,700
Albertsons [Member] \| ABS Venture [Member]
Proceeds from Equity Method Investment, Distribution, Return of Capital	34,600
Albertsons [Member] \| Noncontrolling Interest Members in ABS Venture [Member]
Proceeds from Equity Method Investment, Distribution, Return of Capital	$ 10,900
Albertstons Companies, Inc. [Member]
Percentage of Ownership			9.74%
Albertstons Companies, Inc. [Member] \| Other Assets [Member]
Other Investments, Total			$ 140,200
ABS Venture [Member]
Noncontrolling Interest, Period Increase (Decrease), Total			$ (64,900)