XML 18 R1.htm IDEA: XBRL DOCUMENT v3.22.4
Document and Entity Information - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2022
Feb. 28, 2023
Jun. 30, 2022
Cover [Abstract]      
Document Type 10-K    
Amendment Flag false    
Document Period End Date Dec. 31, 2022    
Document Fiscal Year Focus 2022    
Document Fiscal Period Focus FY    
Entity Registrant Name CECO ENVIRONMENTAL CORP.    
Trading Symbol CECO    
Entity Central Index Key 0000003197    
Entity Current Reporting Status Yes    
Entity Voluntary Filers No    
Entity Interactive Data Current Yes    
Current Fiscal Year End Date --12-31    
Entity Filer Category Accelerated Filer    
Entity Well Known Seasoned Issuer No    
Entity Public Float     $ 151.4
Entity Common Stock Shares Outstanding   34,419,948  
Entity Shell Company false    
Entity Small Business true    
Entity Emerging Growth Company false    
Title of 12(b) Security Common Stock, par value $0.01 per share    
Security Exchange Name NASDAQ    
Entity File Number 0-7099    
Entity Incorporation, State or Country Code DE    
Entity Tax Identification Number 13-2566064    
Entity Address, Address Line One 14651 North Dallas Parkway    
Entity Address, Address Line Two Suite 500    
Entity Address, City or Town Dallas    
Entity Address, State or Province TX    
Entity Address, Postal Zip Code 75254    
City Area Code 214    
Local Phone Number 357-6181    
Document Annual Report true    
Document Transition Report false    
ICFR Auditor Attestation Flag true    
Documents Incorporated by Reference [Text Block]

Portions of the definitive Proxy Statement for the 2023 Annual Meeting of Stockholders, which is to be filed with the Securities and Exchange Commission within 120 days of the fiscal year ended December 31, 2022, are incorporated by reference into Part III of this Annual Report to the extent described herein.

    
Auditor Id 243    
Auditor Name BDO USA, LLP    
Auditor Location Cincinnati, Ohio