Acquisitions and Joint Ventures - Schedule of Unaudited Pro Forma Financial Information (Details) - General Rubber LLC [Member] - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021
Business Acquisition [Line Items]
Net sales	$ 435,216	$ 358,724
Net income attributable to CECO Environmental Corp	$ 18,074	$ 4,466
Earnings Per Share [Abstract]
Basic	$ 0.52	$ 0.13
Diluted	$ 0.52	$ 0.13