Consolidated Statements of Comprehensive Income (Loss) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Statement of Comprehensive Income [Abstract]
Consolidated net income (loss)	$ (41,597)	$ 46,082	$ (17,282)
Other comprehensive income (expense) – net gain (loss) arising during the period on defined benefit pension plans	2,106	3,594	(1,508)
Total comprehensive income (loss)	(39,491)	49,676	(18,790)
Comprehensive loss attributed to noncontrolling interests			2,166
Comprehensive income (loss) attributed to Alto Ingredients, Inc.	$ (39,491)	$ 49,676	$ (16,624)