PREPAID EXPENSES AND OTHER CURRENT ASSETS (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]
Prepaid insurance	$ 8,076	$ 8,356
Commodity derivative advance	1,502	5,472
Sulfur credits	3,462	1,648
Benzene credits	0	353
Prepaid feedstock	9,845	0
Prepaid freight	3,260	0
Prepaid operating expenses	4,756	5,160
Inventory financing deposit	15,259	10,329
Derivative commodity assets	11	0
Other current assets	7,003	5,342
Total prepaid expenses & other current assets	$ 53,174	$ 36,660