Condensed Consolidated Statements of Income (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Income Statement [Abstract]
Net sales	$ 112,563	$ 92,436
Cost of sales	77,670	66,008
Gross profit	34,893	26,428
Selling and administrative expenses	27,193	18,652
Amortization and earnout expenses	1,747	1,452
Acquisition and integration expenses	492	1,049
Restructuring expenses	0	73
Income (loss) from operations	5,461	5,202
Other income (expense), net	(574)	(458)
Interest expense	(2,408)	(822)
Income (loss) before income taxes	2,479	3,922
Income tax expense	10	1,112
Net income (loss)	2,469	2,810
Non-controlling interest	(491)	(18)
Net income (loss) attributable to CECO Environmental Corp.	$ 1,978	$ 2,792
Earnings (loss) per share:
Basic	$ 0.06	$ 0.08
Diluted	$ 0.06	$ 0.08
Weighted average number of common shares outstanding:
Basic	34,441,905	35,051,034
Diluted	35,198,668	35,199,201