INVESTMENT IN UNCONSOLIDATED REAL ESTATE VENTURES - 1919 Ventures (Details) - 1919 Ventures	12 Months Ended
	Dec. 31, 2020 ft² story car apartment
Schedule of Equity Method Investments [Line Items]
Number of floors of a building | story	29
Square foot of contemporary glass tower development	455,000
Number of luxury apartments | apartment	321
Square feet of commercial space	24,000
Number of car structured parking facility | car	215