Discontinued Operations - Summary of Income (Loss) from Discontinued Operations (Parenthetical) (Detail) - USD ($) $ in Thousands		9 Months Ended
Sep. 30, 2016	Sep. 30, 2016
Manitex Liftking, ULC [Member]
Income Statement Balance Sheet And Additional Disclosures By Disposal Groups Including Discontinued Operations [Line Items]
Discontinued operation, transaction expense	$ 581	$ 581

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