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INVESTMENT IN AND ADVANCES TO UNCONSOLIDATED JOINT VENTURES - Summary of Allocated Earnings (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Schedule of Equity Method Investments [Line Items]
Earnings (loss) from investment in unconsolidated joint ventures	$ 441	$ 959
Grace Lake JV, LLC
Schedule of Equity Method Investments [Line Items]
Earnings (loss) from investment in unconsolidated joint ventures	186	415
24 Second Avenue Holdings LLC
Schedule of Equity Method Investments [Line Items]
Earnings (loss) from investment in unconsolidated joint ventures	$ 255	$ 544

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Amount of income (loss) for proportionate share of equity method investee's income (loss).

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