Net Earnings per Common Share - Basic and Diluted Net Earnings Per Share (Detail) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Earnings Per Share [Abstract]
Net income (loss)	$ 2,431	$ (26)
Net income (loss) attributable to noncontrolling interest	148	(79)
Net income attributable to shareholders of Manitex International, Inc.	$ 2,283	$ 53
(Loss) earnings per share Basic
Net income	$ 0.12
Net income attributable to shareholders of Manitex International, Inc.	0.11
(Loss) earnings per share Diluted
Net income	0.12
Net income attributable to shareholders of Manitex International, Inc.	$ 0.11
Weighted average common shares outstanding
Basic	20,284,920	20,122,054
Diluted
Basic	20,284,920	20,122,054
Dilutive effect of restricted stock units and stock options	78,722
Dilutive	20,363,642	20,122,054