Condensed Consolidated Statements of Income (Unaudited) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Income Statement [Abstract]
Net sales	$ 135,513	$ 149,390	$ 399,367	$ 391,134
Cost of sales	90,247	106,269	259,921	273,303
Gross profit	45,266	43,121	139,446	117,831
Selling and administrative expenses	34,262	30,439	105,636	86,082
Amortization and earnout expenses	2,617	1,968	7,036	5,988
Acquisition and integration expenses	1,210	1,386	1,876	2,210
Executive transition expenses	0	1,258	0	1,417
Restructuring expenses	(10)	217	544	217
Asbestos litigation expenses	0	0	225	0
Income from operations	7,187	7,853	24,129	21,917
Other expense, net	(398)	(216)	(2,589)	(670)
Interest expense	(2,648)	(3,340)	(9,315)	(9,498)
Income before income taxes	4,141	4,297	12,225	11,749
Income tax expense	1,602	585	2,664	1,577
Net income	2,539	3,712	9,561	10,172
Noncontrolling interest	(453)	(382)	(1,482)	(1,140)
Net income attributable to CECO Environmental Corp.	$ 2,086	$ 3,330	$ 8,079	$ 9,032
Earnings per share:
Basic	$ 0.06	$ 0.1	$ 0.23	$ 0.26
Diluted	$ 0.06	$ 0.09	$ 0.22	$ 0.26
Weighted average number of common shares outstanding:
Basic	34,966,625	34,771,742	34,910,165	34,612,163
Diluted	36,488,788	35,301,429	36,322,690	35,215,843