Nature of Business and Summary of Significant Accounting Policies (Tables)

12 Months Ended

Dec. 31, 2023

Accounting Policies [Abstract]

Schedule of Reconciliation of Cash, Cash Equivalents and Restricted Cash Reported within Consolidated Statements of Cash Flows

The following table provides a reconciliation of cash, cash equivalents and restricted cash reported within the Consolidated Statements of Cash Flows.

	December 31,
	2023		2022
Cash and cash equivalents	$	54,779	$	45,522
Restricted cash		669		1,063
Total cash, cash equivalents and restricted cash	$	55,448	$	46,585

Schedule of Numerators and Denominators Used to Calculate Basic and Diluted Earnings Per Share

Earnings per share—The following table reconciles the numerators and denominators used to calculate basic and diluted earnings per share for 2023, 2022 and 2021.

	For the Year Ended December 31
	2023		2022		2021
(table only in thousands)
Numerator (for basic and diluted earnings per share)
Net income attributable to CECO Environmental Corp.	$	12,911	$	17,417	$	1,426
Denominator
Basic weighted-average shares outstanding		34,665		34,672		35,346
Common stock equivalents arising from stock options and restricted stock awards		669		333		249
Diluted weighted-average shares outstanding		35,334		35,005		35,595