REAL ESTATE OPERATIONS - Subsurface Interests (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2023 USD ($) a	Mar. 31, 2022 USD ($) a
Royalty
Subsurface interests
Revenue from contract with customer, including assessed tax	$ 10	$ 10
Surface land over subsurface interests
Subsurface interests
Area of land (in acres) | a	353,000
Revenue recognized for cash payments for the release of surface entry rights	$ 100	$ 200
Real Estate Operations | Subsurface Revenue, Land Sales
Subsurface interests
Area of land sold (in acres) | a	2,412	4,750
Revenue from contract with customer, including assessed tax	$ 200	$ 400