INVESTMENT IN UNCONSOLIDATED JOINT VENTURES - Summary of Allocated Earnings (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Schedule of Equity Method Investments [Line Items]
Earnings (loss) from investment in unconsolidated joint ventures	$ 1,564	$ 13	$ 2,522	$ 65
Grace Lake JV, LLC
Schedule of Equity Method Investments [Line Items]
Earnings (loss) from investment in unconsolidated joint ventures	618	266	1,032	533
24 Second Avenue Holdings LLC
Schedule of Equity Method Investments [Line Items]
Earnings (loss) from investment in unconsolidated joint ventures	$ 946	$ (253)	$ 1,490	$ (468)

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

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