INVESTMENTS IN REAL ESTATE - Transactions (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2023 USD ($) ft² unit	Mar. 31, 2022 USD ($) ft² unit
Business Acquisition [Line Items]
Gain on sale	$ 1,104	$ 0
Percentage of ownership acquired	100.00%
4750 Wilshire JV
Business Acquisition [Line Items]
Ownership Interest	20.00%
Channel House
Business Acquisition [Line Items]
Units | unit	333
Interest acquired	89.40%
Purchase price	$ 134,615
Channel House | Retail Site
Business Acquisition [Line Items]
Rentable area (square feet) | ft²	1,864
F3 Land Site
Business Acquisition [Line Items]
Interest acquired	89.40%
Purchase price	$ 250
466 Water Street Land Site
Business Acquisition [Line Items]
Interest acquired	89.40%
Purchase price	$ 2,500
1150 Clay
Business Acquisition [Line Items]
Units | unit	288
Interest acquired	98.10%
Purchase price	$ 145,500
Transaction costs in acquisition of real estate	$ 149
1150 Clay | Retail Site
Business Acquisition [Line Items]
Rentable area (square feet) | ft²	3,968
466 Water Street Land Site, F3 Land Site and Channel House
Business Acquisition [Line Items]
Transaction costs in acquisition of real estate	$ 37
4750 Wilshire Boulevard
Business Acquisition [Line Items]
Interest sold	80.00%
Sales price	$ 34,400
Gain on sale	1,104
Net proceeds	16,700
Accounts receivable	$ 17,700
Note receivable period	6 months
3101 S Western Avenue, Los Angeles, CA
Business Acquisition [Line Items]
Units | unit		40
Purchase price		$ 2,260
Transaction costs in acquisition of real estate		$ 22
Rentable area (square feet) | ft²		3,752
Area of land (square feet) | ft²		11,300