The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting.

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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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- Definition

The parent entity's interest in net assets of the subsidiary, expressed as a percentage.

+ References

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

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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No definition available.

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Investment in Joint Venture (Details) $ in Thousands	12 Months Ended
Investment in Joint Venture (Details) $ in Thousands	Dec. 31, 2018 USD ($) property	Dec. 31, 2017 USD ($)	Dec. 31, 2016 USD ($)	Oct. 19, 2016 property	Jul. 29, 2011 property
Schedule of Equity Method Investments [Line Items]
Number of properties owned	63
Equity in earnings (loss) of joint venture \| $	$ 0	$ 0	$ (64,842)
Manhattan Collection joint venture
Schedule of Equity Method Investments [Line Items]
Equity interest issued in a joint venture					49.00%
Number of properties owned					6
Equity in earnings (loss) of joint venture \| $	$ 0	$ 0	$ (64,800)
Manhattan NYC & Dumont NYC
Schedule of Equity Method Investments [Line Items]
Number of properties owned				2
Manhattan NYC & Dumont NYC
Schedule of Equity Method Investments [Line Items]
Ownership percentage				100.00%