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INVESTMENT IN AND ADVANCES TO UNCONSOLIDATED JOINT VENTURES - Investments in Unconsolidated Joint Ventures (Details) - USD ($) $ in Thousands		Mar. 31, 2020	Dec. 31, 2019
Schedule of Equity Method Investments [Line Items]
Investment in unconsolidated joint ventures	[1]	$ 48,659	$ 48,433
Grace Lake JV, LLC
Schedule of Equity Method Investments [Line Items]
Investment in unconsolidated joint ventures		3,233	3,047
24 Second Avenue Holdings LLC
Schedule of Equity Method Investments [Line Items]
Investment in unconsolidated joint ventures		$ 45,426	$ 45,386
[1] Includes amounts relating to consolidated variable interest entities. See Note 1.

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-Name Accounting Standards Codification
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-Publisher FASB
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