FIXED ASSETS, NET - Schedule of Fixed Assets (Details) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Property, Plant and Equipment, Net
Total fixed assets	$ 395,621	$ 383,739
Less accumulated depreciation	(62,672)	(57,628)
Net fixed assets	332,949	326,111
Equipment
Property, Plant and Equipment, Net
Total fixed assets	$ 287,067	276,331
Leasehold improvements
Property, Plant and Equipment, Net
Useful Life (in years)	15 years
Total fixed assets	$ 2,877	2,852
Office equipment & furniture
Property, Plant and Equipment, Net
Total fixed assets	$ 1,446	1,446
Vehicles
Property, Plant and Equipment, Net
Useful Life (in years)	5 years
Total fixed assets	$ 15,796	15,087
Building
Property, Plant and Equipment, Net
Useful Life (in years)	20 years
Total fixed assets	$ 3,912	3,663
Turnarounds
Property, Plant and Equipment, Net
Useful Life (in years)	4 years
Total fixed assets	$ 19,388	21,100
Construction in progress
Property, Plant and Equipment, Net
Total fixed assets	55,043	53,467
Land
Property, Plant and Equipment, Net
Total fixed assets	$ 9,120	9,439
Land improvement
Property, Plant and Equipment, Net
Useful Life (in years)	15 years
Total fixed assets	$ 972	$ 354
Minimum | Equipment
Property, Plant and Equipment, Net
Useful Life (in years)	7 years
Minimum | Office equipment & furniture
Property, Plant and Equipment, Net
Useful Life (in years)	5 years
Maximum | Equipment
Property, Plant and Equipment, Net
Useful Life (in years)	20 years
Maximum | Office equipment & furniture
Property, Plant and Equipment, Net
Useful Life (in years)	7 years