REAL ESTATE OPERATIONS - Other Real Estate Assets (Details) $ in Thousands			3 Months Ended				12 Months Ended
	Oct. 08, 2020 item	Aug. 10, 2020 item	Dec. 31, 2020 USD ($) item	Sep. 30, 2020 USD ($) item	Mar. 31, 2020 USD ($) item	Dec. 31, 2019 USD ($) item	Dec. 31, 2020 USD ($) item	Dec. 31, 2019 USD ($)	Dec. 31, 2018 USD ($)
Land and development costs and subsurface interests
Revenue from contract with customer, including assessed tax							$ 650	$ 852	$ 2,966
Investment mitigation credits assets			$ 2,622			$ 2,323	2,622	2,323
Mitigation credits value per credit			$ 75	$ 75	$ 75	$ 75	$ 75	75
Number of mitigation credits with cost basis | item							31
Aggregate cost of sales							$ 3,000	0	1,000
Number of mitigation credits | item			8	20	20	25	48
Wetlands restoration
Land and development costs and subsurface interests
Number of mitigation credits | item	13.31	13.31
Minimum
Land and development costs and subsurface interests
Amount of Mitigation Credits With Cost Basis							$ 100
Aggregate cost of sales							100
General and Administrative Expense | Wetlands restoration
Land and development costs and subsurface interests
Amount of Mitigation Credits With Cost Basis							100
LandShark Bar and Grill
Land and development costs and subsurface interests
Cash payments received for impact fees							$ 0	0	100
Mitigation Bank
Land and development costs and subsurface interests
Number of mitigation credits acquired | item							48
Mitigation credits purchased							$ 3,600
Mitigation credits value per credit			$ 75				$ 75
Number of mitigation credits with cost basis | item							42
Amount of Mitigation Credits With Cost Basis							$ 2,900
Mitigation Bank JV
Land and development costs and subsurface interests
Number of mitigation credits acquired | item					2
Mitigation credits purchased					$ 200
Impact Fee and Mitigation Credit Sales
Land and development costs and subsurface interests
Revenue from contract with customer, including assessed tax									1,338
Real Estate Operations | Buc'ees - East of I-95
Land and development costs and subsurface interests
Mitigation credits transferred								$ 0	100
Real Estate Operations | Impact Fee and Mitigation Credit Sales
Land and development costs and subsurface interests
Revenue from contract with customer, including assessed tax							$ 6		$ 1,338