Inventories (Tables)

9 Months Ended

Sep. 30, 2021

Inventory Disclosure [Abstract]

Schedule of Major Components of Inventories

The major components of inventories were as follows:

	September 30, 2021		December 31, 2020
Petroleum products	$	14,941	$	5,840
Crude oil	14,268		37,661
Caustic soda	3,243		5,167
NaHS	14,140		9,101
Raw materials - Alkali operations	7,222		7,120
Work-in-process - Alkali operations	7,191		9,355
Finished goods, net - Alkali operations	12,877		13,002
Materials and supplies, net - Alkali operations	13,338		12,631
Total	$	87,220	$	99,877