REAL ESTATE SOLD AND HELD FOR SALE DISCONTINUED OPERATIONS (Details) $ in Thousands	3 Months Ended	12 Months Ended
	Mar. 31, 2023 USD ($) ft² a	Dec. 31, 2022 USD ($) ft²
Real Estate Properties Sold and Held for Sale [Line Items]
Right of use liability, ground lease	$ 19,616	$ 19,906
2022 dispositions
Real Estate Properties Sold and Held for Sale [Line Items]
Size (square feet) | ft²		287,000
Net sales price		$ 51,006
Basis		10,007
Recognized gain		$ 40,999
Metro Business Park | 2022 dispositions
Real Estate Properties Sold and Held for Sale [Line Items]
Size (square feet) | ft²		189,000
Date sold		Jan. 06, 2022
Net sales price		$ 32,851
Basis		5,880
Recognized gain		$ 26,971
Cypress Creek Business Park | 2022 dispositions
Real Estate Properties Sold and Held for Sale [Line Items]
Size (square feet) | ft²		56,000
Date sold		Mar. 31, 2022
Net sales price		$ 5,282
Basis		1,901
Recognized gain		3,381
Right of use asset, ground lease		1,745
Right of use liability, ground lease		$ 1,745
World Houston 15 East | 2022 dispositions
Real Estate Properties Sold and Held for Sale [Line Items]
Size (square feet) | ft²		42,000
Date sold		May 11, 2022
Net sales price		$ 12,873
Basis		2,226
Recognized gain		$ 10,647
World Houston 23 | 2023 dispositions
Real Estate Properties Sold and Held for Sale [Line Items]
Size (square feet) | ft²	125,000
Date sold	Mar. 31, 2023
Net sales price	$ 9,327
Basis	4,518
Recognized gain	4,809
Basswood Land | 2023 dispositions
Real Estate Properties Sold and Held for Sale [Line Items]
Recognized gain	$ 81
Acres of real estate investment property | a	2
Gross sale price	$ 1,550