CECO Environmental (CECO) 10-K 25 Feb 25 2024 FY Annual report Financial data

Document and Entity Information

Document and Entity Information - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Feb. 13, 2025	Jun. 28, 2024
Cover [Abstract]
Document Type	10-K
Amendment Flag	false
Document Period End Date	Dec. 31, 2024
Document Fiscal Year Focus	2024
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	Large Accelerated Filer
Entity Well Known Seasoned Issuer	No
Entity Public Float			$ 862.3
Entity Common Stock Shares Outstanding		34,989,986
Entity Shell Company	false
Entity Small Business	false
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	5080 Spectrum Drive
Entity Address, Address Line Two	Suite 800E
Entity Address, City or Town	Addison
Entity Address, State or Province	TX
Entity Address, Postal Zip Code	75001
City Area Code	214
Local Phone Number	357-6181
Document Annual Report	true
Document Transition Report	false
Document Financial Statement Error Correction [Flag]	false
ICFR Auditor Attestation Flag	true
Documents Incorporated by Reference [Text Block]	Portions of the definitive Proxy Statement for the 2025 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, 2024 , are incorporated by reference into Part III of this Annual Report to the extent described herein.
Auditor Opinion	We have audited CECO Environmental Corp.’s (the “Company’s”) internal control over financial reporting as of December 31, 2024, based on criteria established in Internal Control – Integrated Framework (2013) issued by the Committee of Sponsoring Organizations of the Treadway Commission (the “COSO criteria”). In our opinion, the Company maintained, in all material respects, effective internal control over financial reporting as of December 31, 2024, based on the COSO criteria . We also have audited, in accordance with the standards of the Public Company Accounting Oversight Board (United States) ("PCAOB"), the consolidated balance sheets of the Company as of December 31, 2024 and 2023, the related consolidated statements of income, comprehensive income, shareholders’ equity, accumulated other comprehensive loss, and cash flows for each of the three years in the period ended December 31, 2024, and the related notes and our report dated February 25, 2025 expressed an unqualified opinion thereon.
Auditor Id	243
Auditor Name	BDO USA, P.C.
Auditor Location	Cincinnati, Ohio

Consolidated Balance Sheets

Consolidated Balance Sheets - USD ($) $ in Thousands	Dec. 31, 2024	Dec. 31, 2023
Current assets:
Cash and cash equivalents	$ 37,832	$ 54,779
Restricted cash	369	669
Accounts receivable, net of allowances of $8,863 and $6,460	159,572	112,733
Costs and estimated earnings in excess of billings on uncompleted contracts	69,889	66,574
Inventories, net	42,624	34,089
Prepaid expenses and other current assets	16,859	11,769
Prepaid income taxes	3,826	824
Total current assets	330,971	281,437
Property, plant and equipment, net	33,810	26,237
Right-of-use assets from operating leases	25,102	16,256
Goodwill	269,747	211,326
Intangible assets – finite life, net	74,050	50,461
Intangible assets – indefinite life	9,466	9,570
Deferred income tax assets	966	304
Deferred charges and other assets	15,587	4,700
Total assets	759,699	600,291
Current liabilities:
Current portion of debt	1,650	10,488
Accounts payable	109,671	87,691
Accrued expenses	47,528	44,301
Billings in excess of costs and estimated earnings on uncompleted contracts	81,501	56,899
Notes payable	1,700	2,500
Income taxes payable	2,612	1,227
Total current liabilities	244,662	203,106
Other liabilities	14,362	12,644
Debt, less current portion	217,230	126,795
Deferred income tax liabilities	11,322	8,838
Operating lease liabilities	20,230	11,417
Total liabilities	507,806	362,800
Commitments and contingencies (See Note 12)
Shareholders’ equity:
Preferred stock, $.01 par value; 10,000 shares authorized, none issued	0	0
Common stock, $.01 par value; 100,000,000 shares authorized, 34,978,009 and 34,835,293 shares issued and outstanding at December 31, 2024 and 2023, respectively	349	348
Capital in excess of par value	255,211	254,956
Retained earnings (accumulated loss)	6,570	(6,387)
Accumulated other comprehensive loss	(14,441)	(16,274)
Total CECO shareholders’ equity	247,689	232,643
Noncontrolling interest	4,204	4,848
Total shareholders' equity	251,893	237,491
Total liabilities and shareholders’ equity	$ 759,699	$ 600,291

Consolidated Balance Sheets (Pa

Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Thousands	Dec. 31, 2024	Dec. 31, 2023
Statement of Financial Position [Abstract]
Allowance for doubtful accounts	$ 8,863	$ 6,460
Preferred stock, par value	$ 0.01	$ 0.01
Preferred stock, shares authorized	10,000	10,000
Preferred stock, shares issued	0	0
Common stock, par value	$ 0.01	$ 0.01
Common stock, shares authorized	100,000,000	100,000,000
Common stock, shares issued	34,978,009	34,835,293
Common Stock, shares outstanding	34,978,009	34,835,293

Consolidated Statements of Inco

Consolidated Statements of Income - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Income Statement [Abstract]
Net sales	$ 557,933	$ 544,845	$ 422,627
Cost of sales	361,786	373,829	294,402
Gross profit	196,147	171,016	128,225
Selling and administrative expenses	146,698	122,944	93,473
Amortization and earnout expenses	9,064	8,180	6,809
Acquisition and integration expenses	4,213	2,508	4,546
Executive transition expenses	0	1,465	1,161
Restructuring expenses	544	1,350	75
Asbestos litigation expenses	225	0	0
Income from operations	35,403	34,569	22,161
Other (expense) income, net	(4,692)	372	6,947
Interest expense	(13,020)	(13,416)	(5,419)
Total income before income taxes	17,691	21,525	23,689
Income tax expense	3,270	7,024	5,426
Net income	14,421	14,501	18,263
Noncontrolling interest	(1,464)	(1,590)	(846)
Net income attributable to CECO Environmental Corp.	$ 12,957	$ 12,911	$ 17,417
Income per share:
Basic	$ 0.37	$ 0.37	$ 0.5
Diluted	$ 0.36	$ 0.37	$ 0.5
Weighted average number of common shares outstanding:
Basic	34,927,313	34,665,473	34,672,007
Diluted	36,381,910	35,334,090	35,005,159

Consolidated Statements of Comp

Consolidated Statements of Comprehensive Income (Loss) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Statement of Comprehensive Income [Abstract]
Net income	$ 14,421	$ 14,501	$ 18,263
Other comprehensive income, net of tax:
Translation (loss) gain	(860)	497	(5,635)
Minimum pension liability adjustment	2,693	1,225	(291)
Comprehensive income	$ 16,254	$ 16,223	$ 12,337

Consolidated Statements of Shar

Consolidated Statements of Shareholders' Equity - USD ($) $ in Thousands	Total	Common Stock [Member]	Capital in Excess of Par Value [Member]	Accumulated Loss [Member]	Accumulated Other Comprehensive Loss [Member]	Noncontrolling Interest [Member]
Translation loss gain	$ (6,358)
Beginning Balance at Dec. 31, 2021	205,957	$ 350	$ 252,989	$ (36,715)	$ (12,070)	$ 1,403
Beginning Balance, Shares at Dec. 31, 2021		35,028,000
Net income	18,263			17,417		846
Exercise of stock options	$ 377		377
Exercise of stock options, Shares	42,000	43,000
Restricted stock units issued	$ (440)	$ 3	(443)
Restricted stock units issued, Shares		286,000
Share-based compensation earned	4,262	$ 1	4,261
Share-based compensation earned, Shares		57,000
Common stock repurchase and retirement, Amount	(7,020)	$ (10)	(7,010)
Common stock repurchase and retirement, Shares		(1,032,000)
Adjustment for minimum pension liability, net of tax	(291)				(291)
Translation loss	(5,635)				(5,635)
Noncontrolling interest distribution/acquired	(1,425)					(1,425)
Minimum pension liability adjustment beginning balance at Dec. 31, 2021	(5,712)
Accumulated other comprehensive loss, beginning balance at Dec. 31, 2021	(12,070)
Accumulated other comprehensive loss, activity	(5,926)
Minimum pension liability adjustment ending balance at Dec. 31, 2022	(6,003)
Accumulated other comprehensive loss, ending balance at Dec. 31, 2022	(17,996)
Fair value of noncontrolling interest equity issued (see Note 14)	4,100					4,100
Ending Balance at Dec. 31, 2022	218,148	$ 344	250,174	(19,298)	(17,996)	4,924
Ending Balance, Shares at Dec. 31, 2022		34,382,000
Translation loss gain	(11,993)
Net income	14,501			12,911		1,590
Exercise of stock options	$ 1,210	$ 1	1,209
Exercise of stock options, Shares	101,000	101,000
Restricted stock units issued	$ (1,186)	$ 3	(1,189)
Restricted stock units issued, Shares		328,000
Share-based compensation earned	$ 4,762		4,762
Share-based compensation earned, Shares		24,000
Common stock repurchase and retirement, Shares	0
Adjustment for minimum pension liability, net of tax	$ 1,225				1,225
Translation loss	497				497
Noncontrolling interest distribution/acquired	(1,666)					(1,666)
Accumulated other comprehensive loss, activity	1,722
Minimum pension liability adjustment ending balance at Dec. 31, 2023	(4,778)
Accumulated other comprehensive loss, ending balance at Dec. 31, 2023	(16,274)
Ending Balance at Dec. 31, 2023	237,491	$ 348	254,956	(6,387)	(16,274)	4,848
Ending Balance, Shares at Dec. 31, 2023		34,835,000
Translation loss gain	(11,496)
Net income	14,421			12,957		1,464
Exercise of stock options	$ 367		367
Exercise of stock options, Shares	28,000	28,000
Restricted stock units issued	$ (3,015)	$ 3	(3,018)
Restricted stock units issued, Shares		314,000
Share-based compensation earned	7,908		7,908
Share-based compensation earned, Shares		31,000
Common stock repurchase and retirement, Amount	(5,004)	$ (2)	(5,002)
Common stock repurchase and retirement, Shares		(230)
Adjustment for minimum pension liability, net of tax	2,693				2,693
Translation loss	(860)				(860)
Noncontrolling interest distribution/acquired	(2,108)					(2,108)
Accumulated other comprehensive loss, activity	1,833
Minimum pension liability adjustment ending balance at Dec. 31, 2024	(2,085)
Accumulated other comprehensive loss, ending balance at Dec. 31, 2024	(14,441)
Ending Balance at Dec. 31, 2024	251,893	$ 349	$ 255,211	$ 6,570	$ (14,441)	$ 4,204
Ending Balance, Shares at Dec. 31, 2024		34,978,000
Translation loss gain	$ (12,356)

Consolidated Statements of Sh_2

Consolidated Statements of Shareholders' Equity (Parenthetical) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Statement of Stockholders' Equity [Abstract]
Adjustment for minimum pension liability, tax	$ 782	$ 619	$ 97

Consolidated Statements of Cash

Consolidated Statements of Cash Flows - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024		Dec. 31, 2023		Dec. 31, 2022
Cash flows from operating activities:
Net income	$ 14,421		$ 14,501		$ 18,263
Adjustments to reconcile net income (loss) to net cash provided by operating activities:
Depreciation and amortization	14,523	[1]	12,507	[2]	10,614	[3]
Unrealized foreign currency loss (gain)	2,664		(1,041)		(1,284)
Fair value adjustments to earnout liabilities	134		296		(229)
Earnout payments	0		0		(1,007)
Loss on sale of property and equipment	191		110		10
Amortization of debt discount	498		427		371
Share-based compensation expense	7,514		4,533		3,895
Bad debt expense	295		1,593		1,340
Inventory reserve expense	1,056		1,099		140
Deferred income tax benefit	(3,606)		(118)		(39)
Changes in operating assets and liabilities, net of acquisitions:
Accounts receivable	(52,355)		(26,851)		(6,751)
Cost and estimated earnings of billings on uncompleted contracts	(4,149)		5,040		(16,851)
Inventories	(9,814)		(6,896)		(6,023)
Prepaid expenses and other current assets	(8,347)		1,196		37
Deferred charges and other assets	(12,736)		(1,420)		2,478
Accounts payable	36,181		13,852		19,843
Accrued expenses	7,119		8,340		2,693
Billings in excess of costs and estimated earnings on uncompleted contracts	24,923		21,575		4,405
Income taxes payable	1,425		(1,976)		1,424
Other liabilities	4,891		(2,120)		(3,680)
Net cash provided by operating activities	24,828		44,647		29,649
Cash flows from investing activities:
Acquisitions of property and equipment	(17,368)		(8,384)		(3,376)
Net proceeds from sale of assets	4		0		19
Cash paid for acquisitions, net of cash acquired	(87,948)		(48,102)		(44,900)
Net cash used in investing activities	(105,312)		(56,486)		(48,257)
Cash flows from financing activities:
Borrowings on revolving credit lines	309,300		106,600		75,200
Repayments on revolving credit lines.	(112,400)		(150,600)		(35,900)
Borrowings of long-term debt	0		75,000		11,000
Repayments of long-term debt	(113,982)		(4,985)		(3,120)
Repayments of notes payable	0		0		(500)
Deferred financing fees paid	(1,924)		(363)		(130)
Deferred consideration paid for acquisitions	(2,050)		(1,247)		0
Payments on capital leases and sale-leaseback financing liability	(925)		(907)		(600)
Earnout payments	(2,831)		(2,123)		0
Equity Awards Surrendered By Employees For Tax Liability, Net Of Proceeds From Employee Stock Purchase Plan And Exercise Of Stock Options	(2,169)		1,435		671
Distributions to non-controlling interest	(2,109)		(1,666)		(1,425)
Common stock repurchases	(5,000)		0		(7,020)
Net cash provided by financing activities	65,910		21,144		38,176
Effect of exchange rate changes on cash and cash equivalents	(2,673)		(442)		(4,978)
Net (decrease) increase in cash, cash equivalents and restricted cash	(17,247)		8,863		14,590
Cash, cash equivalents and restricted cash at beginning of year	55,448		46,585		31,995
Cash, cash equivalents and restricted cash at end of year	38,201		55,448		46,585
Cash paid during the period for:
Interest	13,335		12,098		5,007
Income taxes	$ 9,550		$ 9,916		$ 5,378
[1] The amounts of depreciation and amortization disclosed by reportable segment are included within the other segment expense captions, such as shop burden or general and administrative expense. The amounts of depreciation and amortization disclosed by reportable segment are included within the other segment expense captions, such as shop burden or general and administrative expense. The amounts of depreciation and amortization disclosed by reportable segment are included within the other segment expense captions, such as shop burden or general and administrative expense.

Pay vs Performance Disclosure

Pay vs Performance Disclosure - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Pay vs Performance Disclosure
Net Income (Loss)	$ 12,957	$ 12,911	$ 17,417

Insider Trading Arrangements

Insider Trading Arrangements	3 Months Ended
	Dec. 31, 2024
Trading Arrangements, by Individual
Rule 10b5-1 Arrangement Adopted	false
Non-Rule 10b5-1 Arrangement Adopted	false
Rule 10b5-1 Arrangement Terminated	false
Non-Rule 10b5-1 Arrangement Terminated	false

Cybersecurity Risk Management,

Cybersecurity Risk Management, Strategy, and Governance	12 Months Ended
	Dec. 31, 2024
Cybersecurity Risk Management, Strategy, and Governance [Line Items]
Cybersecurity Risk Management Processes for Assessing, Identifying, and Managing Threats [Text Block]	Item 1C. Cybersecurity The Company’s Board of Directors (the “Board”) recognizes the critical importance of maintaining the trust and confidence of our customers, clients, business partners and employees. The Board is actively involved in oversight of the Company’s risk management program, and cybersecurity represents an important component of the Company’s overall approach to enterprise risk management (“ERM”). The Company’s cybersecurity policies, standards, and processes are being integrated into the Company’s ERM program and based on recognized frameworks and industry standards, including the National Institute of Standards and Technology, the International Organization for Standardization and other applicable industry standards . In general, the Company seeks to address cybersecurity risks through a comprehensive, cross-functional approach that is focused on preserving the confidentiality, security, and availability of Company and customer systems, information, and products. The Company has engaged third-party cybersecurity service providers and leverages leading technologies and expertise to monitor, maintain, and provide 24/7 managed detection and response capabilities for coordination, escalation and remediation of alerts associated with information technology systems utilized by the Company. Risk Management and Strategy The Company engages in the periodic assessment and testing of the Company’s policies, standards, processes and practices that are designed to address cybersecurity threats and incidents. These efforts include a wide range of activities, including audits, assessments, tabletop exercises, threat modeling, vulnerability testing and other exercises focused on evaluating the effectiveness of our cybersecurity measures and planning. The results of such assessments, audits and reviews are reported to the Audit Committee and the Board, and the Company adjusts its cybersecurity program as necessary based on the information provided by these assessments, audits, and reviews. Governance The Board, in coordination with the Audit Committee, oversees the Company’s ERM process, including the management of risks arising from cybersecurity threats. The Board and the Audit Committee each receive regular presentations and reports on cybersecurity risks, which address a wide range of topics including recent developments, evolving standards, vulnerability assessments, and third-party and independent reviews. The Board and the Audit Committee also receive prompt and timely information regarding any cybersecurity incident that meets established reporting thresholds, as well as ongoing updates regarding any such incident until it has been addressed. On an annual basis, the Board and the Audit Committee discuss the Company’s approach to cybersecurity risk management with the Company's Vice President of Information Technology (the "VP of IT"). The Company has a team of cybersecurity professionals reporting to the VP of IT , the head of the Company’s cybersecurity team, dedicated to managing threats and incidents in real time and the reporting of any such incidents. The VP of IT reports to the Chief Financial and Strategy Officer. Through regular and ongoing communications, the VP of IT and the Executive Leadership Team, which includes our Chief Executive Officer, Chief Financial and Strategy Officer, and Chief Administrative and Legal Officer, manage the prevention, detection, mitigation and remediation of cybersecurity threats and incidents and escalate any such threats and incidents to the Audit Committee when appropriate. The VP of IT has served in various leadership roles in information technology and information security for over 25 years, including leading the cybersecurity programs for three public companies. The VP of IT holds undergraduate and graduate degrees in business and has attained multiple cybersecurity certifications including Certified Information Security Manager and Data Privacy. Cybersecurity threats, including those as a result of any previous cybersecurity incidents, have not materially affected or are reasonably likely to materially affect the Company, including its business strategy, results of operations or financial condition. For more information on our cybersecurity related risks, refer to "Part I, Item 1A. Risk Factors" of this Annual Report on Form 10-K.
Cybersecurity Risk Management Processes Integrated [Flag]	true
Cybersecurity Risk Management Processes Integrated [Text Block]	The Board is actively involved in oversight of the Company’s risk management program, and cybersecurity represents an important component of the Company’s overall approach to enterprise risk management (“ERM”). The Company’s cybersecurity policies, standards, and processes are being integrated into the Company’s ERM program and based on recognized frameworks and industry standards, including the National Institute of Standards and Technology, the International Organization for Standardization and other applicable industry standards
Cybersecurity Risk Management Third Party Engaged [Flag]	true
Cybersecurity Risk Third Party Oversight and Identification Processes [Flag]	true
Cybersecurity Risk Materially Affected or Reasonably Likely to Materially Affect Registrant [Flag]	false
Cybersecurity Risk Board of Directors Oversight [Text Block]	The Board, in coordination with the Audit Committee, oversees the Company’s ERM process, including the management of risks arising from cybersecurity threats. The Board and the Audit Committee each receive regular presentations and reports on cybersecurity risks, which address a wide range of topics including recent developments, evolving standards, vulnerability assessments, and third-party and independent reviews. The Board and the Audit Committee also receive prompt and timely information regarding any cybersecurity incident that meets established reporting thresholds, as well as ongoing updates regarding any such incident until it has been addressed. On an annual basis, the Board and the Audit Committee discuss the Company’s approach to cybersecurity risk management with the Company's Vice President of Information Technology (the "VP of IT"). The Company has a team of cybersecurity professionals reporting to the VP of IT , the head of the Company’s cybersecurity team, dedicated to managing threats and incidents in real time and the reporting of any such incidents. The VP of IT reports to the Chief Financial and Strategy Officer. Through regular and ongoing communications, the VP of IT and the Executive Leadership Team, which includes our Chief Executive Officer, Chief Financial and Strategy Officer, and Chief Administrative and Legal Officer, manage the prevention, detection, mitigation and remediation of cybersecurity threats and incidents and escalate any such threats and incidents to the Audit Committee when appropriate. The VP of IT has served in various leadership roles in information technology and information security for over 25 years, including leading the cybersecurity programs for three public companies. The VP of IT holds undergraduate and graduate degrees in business and has attained multiple cybersecurity certifications including Certified Information Security Manager and Data Privacy. Cybersecurity threats, including those as a result of any previous cybersecurity incidents, have not materially affected or are reasonably likely to materially affect the Company, including its business strategy, results of operations or financial condition. For more information on our cybersecurity related risks, refer to "Part I, Item 1A. Risk Factors" of this Annual Report on Form 10-K.
Cybersecurity Risk Board Committee or Subcommittee Responsible for Oversight [Text Block]	The Board and the Audit Committee each receive regular presentations and reports on cybersecurity risks, which address a wide range of topics including recent developments, evolving standards, vulnerability assessments, and third-party and independent reviews. The Board and the Audit Committee also receive prompt and timely information regarding any cybersecurity incident that meets established reporting thresholds, as well as ongoing updates regarding any such incident until it has been addressed.
Cybersecurity Risk Process for Informing Board Committee or Subcommittee Responsible for Oversight [Text Block]	On an annual basis, the Board and the Audit Committee discuss the Company’s approach to cybersecurity risk management with the Company's Vice President of Information Technology (the "VP of IT").
Cybersecurity Risk Role of Management [Text Block]	The Company has a team of cybersecurity professionals reporting to the VP of IT , the head of the Company’s cybersecurity team, dedicated to managing threats and incidents in real time and the reporting of any such incidents. The VP of IT reports to the Chief Financial and Strategy Officer. Through regular and ongoing communications, the VP of IT and the Executive Leadership Team, which includes our Chief Executive Officer, Chief Financial and Strategy Officer, and Chief Administrative and Legal Officer, manage the prevention, detection, mitigation and remediation of cybersecurity threats and incidents and escalate any such threats and incidents to the Audit Committee when appropriate. The VP of IT has served in various leadership roles in information technology and information security for over 25 years, including leading the cybersecurity programs for three public companies. The VP of IT holds undergraduate and graduate degrees in business and has attained multiple cybersecurity certifications including Certified Information Security Manager and Data Privacy.
Cybersecurity Risk Management Positions or Committees Responsible [Flag]	true
Cybersecurity Risk Management Positions or Committees Responsible [Text Block]	The Company has a team of cybersecurity professionals reporting to the VP of IT , the head of the Company’s cybersecurity team, dedicated to managing threats and incidents in real time and the reporting of any such incidents. The VP of IT reports to the Chief Financial and Strategy Officer.
Cybersecurity Risk Management Expertise of Management Responsible [Text Block]	The VP of IT has served in various leadership roles in information technology and information security for over 25 years, including leading the cybersecurity programs for three public companies. The VP of IT holds undergraduate and graduate degrees in business and has attained multiple cybersecurity certifications including Certified Information Security Manager and Data Privacy.
Cybersecurity Risk Process for Informing Management or Committees Responsible [Text Block]	Through regular and ongoing communications, the VP of IT and the Executive Leadership Team, which includes our Chief Executive Officer, Chief Financial and Strategy Officer, and Chief Administrative and Legal Officer, manage the prevention, detection, mitigation and remediation of cybersecurity threats and incidents and escalate any such threats and incidents to the Audit Committee when appropriate.
Cybersecurity Risk Management Positions or Committees Responsible Report to Board [Flag]	true

Nature of Business and Summary

Nature of Business and Summary of Significant Accounting Policies	12 Months Ended
	Dec. 31, 2024
Accounting Policies [Abstract]
Nature of Business and Summary of Significant Accounting Policies	1. Nature of Business and Summary of Significant Accounting Policies Nature of business — CECO Environmental Corp. and its consolidated subsidiaries (“CECO,” the “Company,” “we,” “us,” or “our”) is a leading environmentally focused, diversified industrial company, serving the broad landscape of industrial air, industrial water and energy transition markets globally providing innovative technology and application expertise. CECO helps companies grow their business with safe, clean, and more efficient solutions that help protect people, the environment and industrial equipment. CECO solutions improve air and water quality, optimize emissions management, and increase the energy and process efficiency for highly engineered applications in power generation, midstream and downstream hydrocarbon processing and transport, chemical processing, electric vehicle production, polysilicon fabrication, semiconductor and electronics production, battery production and recycling, specialty metals, aluminum and steel production, beverage can manufacturing, and industrial and produced water and wastewater treatment, and a wide range of other industrial end markets . Principles of consolidation —The consolidated financial statements include the Company and its controlled subsidiaries. All intercompany balances and transactions have been eliminated. Unless indicated, all balances within tables are in thousands with the exception of per share amounts. Use of estimates —The preparation of financial statements in conformity with accounting principles generally accepted in the United States of America (“GAAP”) requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates. Significant estimates and assumptions reflected in the financial statements relate to and include, but are not limited to, the estimates of contracts' progress to completion used in the recognition of revenue over time, inventory valuation, the estimated useful lives of fixed assets and intangible assets, fair values of long-lived assets and goodwill, and deferred tax assets. Cash equivalents —The Company considers all highly liquid investments with original maturities of three months or less to be cash equivalents. At December 31, 2024 and 2023, Restricted Cash is cash in support of letters of credit issued by various foreign subsidiaries of the Company. The Company occasionally enters into letters of credit with durations in excess of one year. The following table provides a reconciliation of cash, cash equivalents and restricted cash reported within the Consolidated Statements of Cash Flows. December 31, 2024 2023 Cash and cash equivalents $ 37,832 $ 54,779 Restricted cash 369 669 Total cash, cash equivalents and restricted cash $ 38,201 $ 55,448 Accounts receivable —Receivables are generally uncollateralized customer obligations due under normal terms requiring payment generally within 30 days from the invoice date unless otherwise determined by specific contract terms, generally due to retainage provisions. The Company’s estimate of the allowance for credit losses for trade receivables is primarily determined based upon the length of time that the receivables are past due and management estimates of probable losses based upon an analysis of prior collection experience, specific account risks and economic conditions. Accounts are deemed uncollectible based on past account experience and the current financial condition of the account. Inventories —The Company’s inventory is valued at the lower of cost or net realizable value, using the first-in, first-out inventory costing method. Inventory quantities are regularly reviewed and provisions for excess or obsolete inventory are recorded based on the Company’s forecast of future demand and market conditions. Significant unanticipated changes to the Company’s forecasts could require a change in the provision for excess or obsolete inventory. Property, plant and equipment —Property, plant and equipment are carried at the cost of acquisition or construction and depreciated over the estimated useful lives of the assets. Depreciation and amortization are provided using the straight-line method in amounts sufficient to amortize the cost of the assets over their estimated useful lives (buildings and improvements—generally five to 40 years ; machinery and equipment—generally two to 15 years ). Upon sale or disposal of property, plant and equipment, the applicable amounts of asset cost and accumulated depreciation are removed from the accounts, and the net amount, less any proceeds from sale, is recorded in income. Intangible assets — Indefinite life intangible assets are comprised of tradenames, while finite life intangible assets are comprised of technology, customer lists, and tradenames. Finite life intangible assets are amortized on a straight line or accelerated basis over their estimated useful lives of seven to 10 years for technology, five to 20 years for customer lists, and 10 years for tradenames. Long-lived assets —Property, plant and equipment and finite life intangible assets are reviewed whenever events or changes in circumstances occur that indicate possible impairment. If events or changes in circumstances occur that indicate possible impairment, the impairment review is based on an undiscounted cash flow analysis at the lowest level at which cash flows of the long-lived assets are largely independent of other groups of assets and liabilities. This analysis requires management judgment with respect to changes in technology, the continued success of product lines, and future volume, revenue and expense growth rates. The Company conducts annual reviews for idle and underutilized equipment, and review business plans for possible impairment. Impairment occurs when the carrying value of the assets exceeds the future undiscounted cash flows expected to be earned by the use of the asset or asset group. When impairment is indicated, the estimated future cash flows are then discounted to determine the estimated fair value of the asset or asset group and an impairment charge is recorded for the difference between the carrying value and the estimated fair value. Additionally, the Company evaluates the remaining useful life each reporting period to determine whether events and circumstances warrant a revision to the remaining period of depreciation or amortization. If the estimate of a long-lived asset’s remaining useful life is changed, the remaining carrying amount of the asset is amortized prospectively over that revised remaining useful life. The Company completes an impairment assessment annually in the fourth quarter, or more often as circumstances require, of its indefinite life intangible assets. As a part of its annual assessment, typically, the Company first qualitatively assesses whether current events or changes in circumstances lead to a determination that it is more likely than not, as defined as a likelihood of more than 50 percent, that the fair value of an asset is less than its carrying amount. If there is a qualitative determination that the fair value of a particular asset is more likely than not greater than its carrying value, the Company does not need to proceed to the quantitative estimated fair value test for that asset. If this qualitative assessment indicates a more likely than not potential that the asset may be impaired, the estimated fair value is determined by the relief from royalty method. If the estimated fair value of an asset is less than its carrying value, an impairment charge is recorded for the amount by which the carrying value of the asset exceeds its estimated fair value. Goodwill —The Company completes an impairment assessment annually in the fourth quarter or more often as circumstances require, of its goodwill on a reporting unit level, at or below the operating segment level. As a part of its annual assessment, the Company first qualitatively assesses whether current events or changes in circumstances lead to a determination that it is more likely than not, defined as a likelihood of more than 50 percent, that the fair value of a reporting unit is less than its carrying amount. If there is a qualitative determination that the fair value of a particular reporting unit is more likely than not greater than its carrying value, the Company does not need to quantitatively test for goodwill impairment for that reporting unit. If this qualitative assessment indicates a more likely than not potential that the asset may be impaired, the estimated fair value is determined using a weighting of the income method and the market method. If the estimated fair value of a reporting unit is less than its carrying value, an impairment charge is recorded. Business Combinations —The Company allocates the fair value of purchase consideration to the tangible assets acquired, liabilities assumed, and intangible assets acquired based upon their estimated fair values as of the acquisition date. The Company determines the fair value of intangible assets using the income method, which is based upon a discounted future cash flow. The discounted future cash flow utilizes unobservable inputs, or Level 3 assumptions. Specifically, the discounted future cash flow uses the significant assumptions of projected revenue, projected operational profit, terminal growth rates, and the cost of capital. Projected revenue and operational profit, and terminal growth rates have been determined to be significant assumptions because they are three primary drivers of the projected cash flows in the discounted future cash flow approach. Cost of capital has also been determined to be a significant assumption as it is the discount rate used to calculate the current fair value of those projected cash flows. The excess of the fair value of purchase consideration over the fair values of these identifiable assets and liabilities is recorded as goodwill based on the expected benefits from the business combination. Allocation of purchase consideration to identifiable assets and liabilities affects the amortization expense, as acquired finite-lived intangible assets are amortized over the useful life, whereas any indefinite-lived intangible assets, including goodwill, are not amortized. During the measurement period, which is not to exceed one year from the date of acquisition, the Company may record adjustments to the assets acquired and liabilities assumed, with the corresponding offset to goodwill. Subsequent to the measurement period, any necessary adjustments are recorded to earnings. Acquisition-related expenses are recognized separately from business combinations, and expensed as incurred. Deferred financing costs —Deferred financing costs are amortized to interest expense over the life of the related loan. In fiscal 2021, the Company entered into Amendment No.2 to the Second Amended and Restated Credit Agreement. The Credit Facility amended the Company’s existing Amendment No. 1 to Second Amended and Restated Agreement . In connection with the Credit Facility, the Company incurred $ 0.8 million in customary closing fees in 2021 that were capitalized and classified as a debt discount (see Note 8 for further details on the Credit Facility). In fiscal 2023, the Company entered into Amendment No.4 to the to the Second Amended and Restated Credit Agreement . In connection with this amendment, the Company incurred $ 0.4 million in customary closing fees in the fourth quarter of 2023 that were capitalized and classified as a debt discount (see Note 8). In fiscal 2024, the Company entered into the Third Amended and Restated Credit Agreement. In connection with this agreement, the Company incurred $ 1.8 million in customary closing fees that were capitalized and classified as a debt discount (see Note 8). In addition, $ 0.1 million of loss on extinguishments of debt was recorded within Interest expense on the Consolidated Statement of Income related to the previously capitalized amounts relating to the portion of the Third Amended and Restated Credit Agreement that was concluded to be debt extinguishment. Amortization expense was $ 0.5 million, $ 0.4 million and $ 0.4 m illion for 2024, 2023 and 2022, respectively. As of December 31, 2024, and 2023, remaining capitalized deferred financing costs of $ 2.7 million and $ 1.3 million, respectively, are included as a discount to debt in the accompanying Consolidated Balance Sheets. Revenue recognition —A significant portion of the Company's revenue is derived from fixed-price contracts. The Company accounts for a contract after it has been approved by all parties to the arrangement, the rights of the parties are identified, payment terms are identified, the contract has commercial substance and collectability of consideration is probable. For each contract, the Company assesses the goods and services promised to a customer and identifies a performance obligation for each distinct promised good or service. The typical life of contracts is generally less than 12 months and each contract generally contains only one performance obligation, to provide goods or services to the customer. The Company determines the transaction price for each contract based on the consideration the Company expects to receive for the products or services being provided under the contract. The Company recognizes revenue as performance obligations are satisfied and the customer obtains control of the products and services. A significant amount of the Company's revenue is recognized over a period of time as the Company performs under the contract because control of the work in process transfers continuously to the customer. For performance obligations to deliver products with continuous transfer of control to the customer, revenue is recognized based on the extent of progress towards completion of the performance obligation. Progress is measured based on the ratio of costs incurred to date to the total estimated costs to complete the performance obligation. For these contracts, the cost-to-cost measure best depicts the continuous transfer of goods or services to the customer. Annual revenue recognized over a period of time is approximately 75% of total revenue for the years ended December 31, 2024, 2023, and 2022. For contracts where the duration is short, total contract revenue is insignificant, or control does not continuously transfer to the customer, revenues are recognized at the point in time control passes to the customer, which occurs generally upon shipment of product. Annual revenue recognized at a point in time is approximately 25% of total revenue for the years ended December 31, 2024, 2023, and 2022. Progress payments are generally made over the duration of the contract. Shipping and handling activities after control of the products has transferred to the customer are considered fulfillment activities. Sales taxes are recorded on a net basis. Contract Assets and Contract Liabilities — Contract assets consist of costs and earnings in excess of billings, costs incurred for contracts recognized at a point in time, and retainage. Costs and earnings in excess of billings represent the estimated value of unbilled work for contracts with performance obligations recognized over time and are separately classified as current assets in the Consolidated Balance Sheets. Costs incurred for contracts recognized at a point in time are classified within inventories as work-in-process. Retainage represents a portion of the contract billings that have been billed, but for which the contract allows the customer to retain a portion of the billed amount until final settlement. Retainage is not considered to be a significant financing component because the intent is to protect the customer. Retainage is classified within accounts receivable and deferred charges and other assets depending on when it is due. Almost all of the Company’s contract assets are classified as current assets in the Consolidated Balance Sheets. Billings in excess of costs and estimated earnings on uncompleted contracts are current liabilities, which relate to fixed-price contracts recognized over time, and represents payments in advance of performing the related contract work. Billings in excess of costs and estimated earnings on uncompleted contracts is not considered to be a significant financing component because it is generally used to meet working capital demands that can be higher in the early stages of a contract. Contract liabilities, classified in Accrued expenses in the Consolidated Balance Sheets, include advance payments received from customers for which revenue has not been recognized for contracts where revenue is recognized at a point in time. Contract liabilities are reduced when the associated revenue from the contract is recognized, which is generally within one year. As of the beginning of the prior year period, or January 1, 2023, costs and estimated earnings in excess of billings on uncompleted contracts and billings in excess of costs and estimated earnings on uncompleted contracts w ere $ 71.0 million and $ 32.7 million, respectively. The contract liabilities recorded in “Accrued expenses” on the Consolidated Balance Sheets were $ 4.5 million as of January 1, 2023. Approximately 95 % of the Company's contract liabilities as of December 31, 2023 were recognized as revenue in the year ended December 31, 2024. Approximately 95 % of the Company's contract liabilities as of December 31, 2022 were recognized as revenue in the year ended December 31, 2023. Approximately 75 % of the Company's contract liabilities as of December 31, 2021 were recognized as revenue in the year ended December 31, 2022. The revenue streams within the Company are consistent with those disclosed for the Company's reportable segments. See Note 15 to the Consolidated Financial Statements for additional information on product offerings and segments. Provisions for estimated losses on uncompleted contracts are made in the period in which such losses are determined. Changes to job performance, job conditions, and estimated profitability may result in revisions to contract revenue and costs and are recognized in the period in which the revisions are made. There was no provision for estimated losses on uncompleted contracts at December 31, 2024 and 2023 . Cost of sales —Cost of sales amounts include materials, subcontract costs, direct labor and associated benefits, inbound freight charges, purchasing and receiving, inspection, warehousing, and depreciation. Claims —Change orders arise when the scope of the original project is modified for any of a variety of reasons. The Company will negotiate the extent of the modifications, its expected costs and recovery with the customer. Costs related to change orders are added to the expected total cost of the project. In cases where contract revenues are increased in excess of the expected costs of the change order, incremental profit also is recognized on the contract. Generally, in order for this recognition of incremental profit to occur, the customer approves in writing the scope and pricing of the change order. Change orders that are in dispute are effectively handled as claims. Claims are amounts in excess of the agreed contract price that the Company seeks to collect from customers or others for customer-caused delays, errors in specifications and designs, contract terminations, change orders in dispute or unapproved as to both scope and price. Costs attributable to claims are treated as contract costs as incurred. The Company recognizes certain significant claims for recovery of incurred costs when it is probable that the claim will result in additional contract revenue and when the amount of the claim can be reliably estimated. When the customer or other parties agree in writing to the amount of the claim to be recovered by the Company, the amount of the claim becomes contractual and is accounted for as an increase in the contract’s total estimated revenue and estimated cost. As actual costs are incurred and revenues are recognized over time, a corresponding percentage of the revised total estimated profit will therefore be recognized. Should it become probable that the claim will not result in additional contract revenue, the Company removes the related contract revenues from its previous estimate of total revenues, which effectively reduces the estimated profit margin on the job and negatively impacts profit for the period. Pre-contract costs —Pre-contract costs are not significant and are primarily internal costs. As most of the Company’s contracts are one year or less, the Company expenses all pre-contract costs as incurred regardless of whether or not the bids are successful. A majority of the Company's business is obtained through a bidding process and this activity is on-going with multiple bids in process at any one time. These costs consist primarily of engineering, sales and project manager wages, fringes and general corporate overhead. Selling and administrative expenses —Selling and administrative expenses on the Consolidated Statements of Income include sales and administrative wages and associated benefits, selling and office expenses, professional fees, bad debt expense and depreciation. Selling and administrative expenses are charged to expense as incurred. Selling and administrative expenses for the years ended December 31, 2024, 2023, and 2022 included $ 0.7 million, $ 0.6 million, and $ 0.5 million of advertising expenses, respectively. Acquisition and integration expenses —Acquisition and integration expenses on the Consolidated Statements of Income are related to acquisition activities, which include, legal, accounting, and other expenses. Amortization and earnout expenses —Amortization and earnout expenses on the Consolidated Statements of Income include amortization of intangible assets, and changes to earnout and contingent compensation amounts related to acquisitions. Restructuring expenses —Restructuring expenses on the Consolidated Statements of Income include expenses related to ongoing restructuring programs to reduce operating costs in the future. Within restructuring expenses are charges related to severance, facility exit, legal and property, plant and equipment impairment associated with exit or disposal activities. Executive transition expenses —Executive transition expenses on the Consolidated Statements of Income include expenses related to the severance for the Company’s former executives, as well as fees and expenses incurred in the search for, and hiring of, new executives. Asbestos litigation expenses —Asbestos litigation expenses on the Consolidated Statements of Income include expenses related to the settlement of asbestos litigation involving the Company's subsidiaries. Product warranties —The Company’s warranty reserve is to cover the products sold. The warranty accrual is based on historical claims information. The warranty reserve is reviewed and adjusted as necessary on a quarterly basis and is presented within Note 7. Research and development —Although not technically defined as research and development, a significant amount of time, effort and expense is devoted to custom engineering which qualifies products for specific customer applications, developing proprietary process technology and partnering with customers to develop new products. Income taxes - Income taxes are determined using the asset and liability method of accounting for income taxes in accordance with Financial Accounting Standards Board (“FASB”), Accounting Standards Codification (“ASC”) Topic 740, “Income Taxes”. Income tax expense includes federal, state and foreign income taxes. Deferred income taxes are provided using the asset and liability method whereby deferred tax assets are recognized for deductible temporary differences and operating loss and tax credit carry-forwards and deferred tax liabilities are recognized for taxable temporary differences. Temporary differences are the differences between the reported amounts of assets and liabilities and their tax bases and are measured using enacted tax rates expected to apply to taxable income in the year in which those temporary differences are expected to be recovered or settled. Deferred tax assets and liabilities are adjusted for the effects of changes in tax laws and rates on the date of enactment. Tax credits and other incentives reduce income tax expense in the year the credits are claimed. Management must assess the need to accrue or disclose uncertain tax positions for proposed potential adjustments from various federal, state and foreign tax authorities who regularly audit the Company in the normal course of business. In making these assessments, management must often analyze complex tax laws of multiple jurisdictions, including many foreign jurisdictions. The accounting guidance prescribes a recognition threshold and measurement attribute for the financial statement recognition and measurement of a tax position taken or expected to be taken in a tax return. The Company records the related interest expense and penalties, if any, as tax expense in the tax provision. Management must assess the realizability of the Company’s deferred tax assets. In assessing the realizability of deferred tax assets, management considers whether it is more likely than not that some portion or all of the deferred tax assets will not be realized. The ultimate realization of deferred tax assets is dependent upon the generation of future taxable income during the periods in which those temporary differences become deductible. Management considers the scheduled reversal of deferred tax liabilities (including the impact of available carryback and carry forward periods), projected future taxable income, and tax-planning strategies in making this assessment. The amount of the deferred tax assets considered realizable, however, could be reduced in the near term if estimates of future taxable income during the carryforward period are reduced. The Company has made an accounting policy election to record the U.S. income tax effect of future global intangible low-taxed income (“GILTI”) inclusions in the period in which they arise, rather than establishing deferred taxes with respect to the expected future tax liabilities associated with future GILTI inclusion. Certain of the Company’s undistributed earnings of its foreign subsidiaries are not permanently reinvested. A liability has been recorded for the deferred taxes on such undistributed foreign earnings. The amount is attributable primarily to the foreign withholding taxes that would become payable should the Company repatriate cash held in its foreign operations. Earnings per share —The following table reconciles the numerators and denominators used to calculate basic and diluted earnings per share for 2024, 2023 and 2022. For the Year Ended December 31 2024 2023 2022 (table only in thousands) Numerator (for basic and diluted earnings per share) Net income attributable to CECO Environmental Corp. $ 12,957 $ 12,911 $ 17,417 Denominator Basic weighted-average shares outstanding 34,927 34,665 34,672 Common stock equivalents arising from stock options and restricted stock awards 1,455 669 333 Diluted weighted-average shares outstanding 36,382 35,334 35,005 Options and unvested restricted stock units are included in the computation of diluted earnings per share using the treasury stock method. For 2024, 2023 and 2022, outstanding options and unvested restricted stock units of zero , zero and 1.1 million, r espectively, were excluded from the computation of diluted earnings per share due to their having an anti-dilutive effect. Once a restricted stock award vests, it is included in the computation of weighted average shares outstanding for purposes of basic and diluted earnings per share. Foreign Currency Translation —The functional currencies of the Company’s foreign subsidiaries are their local currencies and their books and records are maintained in the local currency. The assets and liabilities of these foreign subsidiaries are translated into United States Dollars (“USD”) based on the end-of period exchange rates and the resultant translation adjustments are reported in Accumulated Other Comprehensive Loss in Shareholders’ Equity on the Consolidated Balance Sheets. Income and expenses are translated into USD at average exchange rates in effect during the period. Transactions denominated in other than the local currency are remeasured into the local currency and the resulting exchange gains or losses are included in “Other (expense) income, net” line of the Consolidated Statements of Income. Transaction (losses) gains were $( 4.3 ) million, $ 1.2 million, and $ 6.3 million i n 2024, 2023 and 2022 , respectively. Accounting Standards Adopted in 2024 In 2024, the Company adopted Accounting Standards Update ("ASU") 2023-07, Segment Reporting (Topic 280): Improvements to Reportable Segment Disclosures, which addresses segment disclosure requirements, primarily the disclosure of significant segment expenses. See Note 15 for the associated disclosures. Accounting Standards to be Adopted In December 2023, the FASB issued ASU 2023-09, Income Taxes (Topic 740): Improvements to Income Tax Disclosures, which addresses income tax disclosure requirements, primarily around the disclosure of the rate reconciliation and income taxes paid. The ASU is effective for fiscal years beginning after December 15, 2024. The Company is currently evaluating the impact the adoption of the standard will have on the Company’s consolidated financial statements. In November 2024, the FASB issued ASU 2024-03, Income Statement—Reporting Comprehensive Income—Expense Disaggregation Disclosures (Subtopic 220-40): Disaggregation of Income Statement Expenses, which addresses expense disclosure requirements, primarily the disaggregation of expense captions. The ASU is effective for fiscal years beginning after December 15, 2026, and interim periods beginning after December 15, 2027. The Company is currently evaluating the impact the adoption of the standard will have on the Company’s consolidated financial statements.

Financial Instruments

Financial Instruments	12 Months Ended
	Dec. 31, 2024
Investments, All Other Investments [Abstract]
Financial Instruments	2. Financial Instruments The Company's financial instruments consist primarily of cash and cash equivalents, receivables and certain other assets, notes payable, foreign debt, and accounts payable, which approximate fair value at December 31, 2024 and 2023, due to their short-term nature or variable, market-driven interest rates. The fair value of the debt issued under the Credit Facility and joint venture term loan was $ 221.5 million and $ 138.6 million at December 31, 2024 and 2023, respectively. The fair value was determined considering market conditions, the Company's credit worthiness and the current terms of debt, which is considered Level 2 on the fair value hierarchy. At December 31, 2024 and 2023, the Company had cash and cash equivalents of $ 37.8 million and $ 54.8 million, respectively, of which $ 29.7 million and $ 38.5 million, respectively, was held outside of the United States, principally in the United Arab Emirates, Netherlands, United Kingdom, China, and Mexico. Concentrations of credit risk Financial instruments that potentially subject us to credit risk consist principally of cash and cash equivalents, and accounts receivable. The Company maintains cash and cash equivalents with various major financial institutions. The Company perform periodic evaluations of the financial institutions in which its cash is invested. Concentrations of credit risk with respect to trade and contract receivables are limited due to the large number of customers and various geographic areas. Additionally, the Company performs ongoing credit evaluations of its customers’ financial condition.

Accounts Receivable

Accounts Receivable	12 Months Ended
	Dec. 31, 2024
Receivables [Abstract]
Accounts Receivable	3. Accounts Receivable Accounts receivable consisted of the following: December 31, (table only in thousands) 2024 2023 Accounts receivable $ 168,435 $ 119,193 Allowance for credit losses ( 8,863 ) ( 6,460 ) Total accounts receivable $ 159,572 $ 112,733 Accounts receivable, net as of the beginning of the prior year period, or January 1, 2023, were $ 83.1 million. Balances billed, but not paid by customers under retainage provisions in contracts, amounted to approximately $ 13.6 milli on and $ 3.2 million at December 31, 2024 and 2023, respectively. Retainage receivables as of the beginning of the prior year period, or January 1, 2023, were $ 1.6 million. Retainage receivables on contracts in progress are generally collected within a year or two subsequent to contract completion, and are recorded in either "Accounts receivable, net" or "Deferred charges and other assets" within the Consolidated Balance Sheets depending on timing of expected collection. Provision for credit losses was $ 0.3 million, $ 1.6 million and $ 1.3 m illion during 2024, 2023 and 2022, respectively, while accounts charged to (recovered from) the provision were $ 2.9 million, $( 0.6 ) million and $ 0.6 million during 2024, 2023 and 2022 , respectively.

Inventories

Inventories	12 Months Ended
	Dec. 31, 2024
Inventory Disclosure [Abstract]
Inventories	4. Inventories Inventories consisted of the following: December 31, (table only in thousands) 2024 2023 Raw materials $ 27,466 $ 25,819 Work in process 14,532 9,710 Finished goods 4,342 2,368 Obsolescence allowance ( 3,716 ) ( 3,808 ) Total inventories $ 42,624 $ 34,089 Amounts credited to the allowance for obsolete inventory and charged to cost of sales amounted to $ 1.1 million, $ 1.1 million and $ 0.1 million d uring 2024, 2023 and 2022, respectively. Items charged to the allowance for inventory write-offs were $ 0.3 million, $ 0.3 million, and zero , during 2024, 2023 and 2022 , respectively.

Property, Plant and Equipment

Property, Plant and Equipment	12 Months Ended
	Dec. 31, 2024
Property, Plant and Equipment [Abstract]
Property, Plant and Equipment	5. Property, Plant and Equipment Property, plant and equipment consisted of the following: December 31, (table only in thousands) 2024 2023 Land, building and improvements $ 17,788 $ 12,284 Machinery and equipment and other 57,197 33,364 Property, plant and equipment, gross 74,985 45,648 Less accumulated depreciation ( 41,175 ) ( 19,411 ) Property, plant and equipment, net $ 33,810 $ 26,237 Depreciation expense was $ 5.8 million, $ 5.1 million and $ 3.6 million for 2024, 2023 and 2022 , respectively.

Goodwill and Intangible Assets

Goodwill and Intangible Assets	12 Months Ended
	Dec. 31, 2024
Goodwill and Intangible Assets Disclosure [Abstract]
Goodwill and Intangible Assets	6. Goodwill and Intangible Assets (table only in thousands) Engineered Systems Industrial Process Solutions egment Totals Balance of goodwill at December 31, 2022 $ 114,746 $ 68,451 $ 183,197 Acquisitions 27,152 — 27,152 Foreign currency translation 331 646 977 Balance of goodwill at December 31, 2023 142,229 69,097 211,326 Acquisitions 110 59,005 59,115 Foreign currency translation ( 596 ) ( 98 ) ( 694 ) Balance of goodwill at December 31, 2024 $ 141,743 $ 128,004 $ 269,747 As of December 31, 2024 and 2023, the Company has an aggregate amount of goodwill acquired of $ 330.4 million and $ 272.0 million, respectively, and an aggregate amount of impairment losses of $ 60.7 million which was recognized in 2017. The Company’s indefinite lived intangible assets as of December 31, 2024 and 2023 consisted of the following: Tradenames (table only in thousands) 2024 2023 Balance beginning of year $ 9,570 $ 9,508 Foreign currency adjustments ( 104 ) 62 Balance end of year $ 9,466 $ 9,570 The Company completes an impairment assessment of its goodwill and indefinite life intangible assets at the reporting unit level annually, or upon the occurrence of a triggering event or a change in circumstances that would more likely than not reduce the fair value of a reporting unit below its carrying amount. The annual assessment was performed in the fourth quarters of 2024, 2023 and 2022 . The assessments did no t result in impairment in 2024, 2023 or 2022. The Company’s finite lived intangible assets consisted of the following: December 31, 2024 2023 (table only in thousands) Cost Accum. Cost Accum. Technology $ 20,614 $ 14,769 $ 16,517 $ 14,061 Customer lists 127,354 70,045 103,471 63,420 Tradenames 18,530 6,392 14,094 5,001 Foreign currency adjustments ( 2,770 ) ( 1,528 ) ( 1,083 ) 56 Total finite life intangible assets $ 163,728 $ 89,678 $ 132,999 $ 82,538 Amortization expense of finite life intangible assets was $ 8.7 million, $ 7.4 million and $ 7.0 million for 2024, 2023 and 2022, respectively. Amortization over the next five years for finite life intangibles is $ 12.2 million in 2025, $ 11.7 million in 2026, $ 10.6 million in 2027, $ 9.8 million in 2028, and $ 8.5 million in 2029.

Accrued Expenses

Accrued Expenses	12 Months Ended
	Dec. 31, 2024
Payables and Accruals [Abstract]
Accrued Expenses	7. Accrued Expenses Accrued expenses consisted of the following: December 31, (table only in thousands) 2024 2023 Compensation and related benefits $ 12,274 $ 11,278 Accrued warranty 4,558 5,105 Contract liability 9,746 7,875 Short-term operating lease liability 4,262 4,278 Other 16,688 15,765 Total accrued expenses $ 47,528 $ 44,301 The activity in the Company’s earnout liability consisted of the following : December 31, (table only in thousands) 2024 2023 Earnout accrued at beginning of year $ 2,200 $ 1,200 Fair value of earnout at acquisition date 6,332 2,800 Fair value adjustment 134 296 Payments and other ( 2,831 ) ( 2,096 ) Earnout accrued at end of year $ 5,835 $ 2,200 Current portion, recorded within Accrued expenses 60 1,115 Non-current portion, recorded within Other liabilities 5,775 1,085 As additional consideration in the acquisition of WK Germany KG, GmbH and WK Asia-Pacific Pte. Ltd. (collectively, "WK Group"), the former owners of WK Group are entitled to earn-out payments up to $ 27.5 million based upon specified financial results through September 30, 2025. Based on projections at the acquisition date, the Company estimated the fair value of the earn-out to be $ 6.3 million, recorded in "Other liabilities" on its Consolidated Balance Sheets. As additional consideration in the acquisition of Kemco Systems Co., LLC ("Kemco"), the former owners of Kemco are entitled to earn-out payments up to $ 4.0 million based upon specified financial results through August 31, 2026. Based on projections at the acquisition date, the Company estimated the fair value of the earn-out to be $ 2.2 million. As of December 31, 2024 , the earnout liability recorded in "Accrued expenses" on its Consolidated Balance Sheets was $ 0.1 million, reflecting earnout payments of $ 2.8 million made in the year ended December 31, 2024 and fair value adjustments of $ 0.7 million during the year ended December 31, 2024. The fair value adjustments were recorded in "Amortization and earnout expenses" on the Consolidated Statement of Income. As additional consideration in the acquisition of Malvar Engineering Limited, including its subsidiaries Arkanum Management Limited and Wakefield Acoustics Limited (collectively, "Wakefield") , the former owners of Wakefield were entitled to earn-out payments based upon specified financial results through July 31, 2023. Based on projections at the acquisition date, the Company estimated the fair value of the earn-out to be $ 0.6 million. An earnout payment of $ 0.6 million was made in the year ended December 31, 2023. As additional consideration in the acquisition of Compass Water Solutions, Inc. ("Compass"), the former owners of Compass were entitled to earn-out payments based upon specified financial results through April 30, 2023. Based on projections at the acquisition date of May 3, 2022, the Company estimated the fair value of the earnout to be $ 1.4 million. During the year ended December 31, 2022, the Company decreased the earnout by $ 0.2 million based on the estimated fair value at December 31, 2022. The fair value adjustment was recorded in "Amortization and earnout expenses" on the Consolidated Statement of Income. An earnout payment of $ 1.5 million was made in the year ended December 31, 2023.

Senior Debt

Senior Debt	12 Months Ended
	Dec. 31, 2024
Debt Disclosure [Abstract]
Senior Debt	8. Senior debt Debt consisted of the following: December 31, (table only in thousands) 2024 2023 Outstanding borrowings under Credit Facility (defined below) – Term loan $ — $ 112,424 – Revolving Credit Loan 214,200 17,300 Total outstanding borrowings under Credit Facility 214,200 129,724 Outstanding borrowings under the joint venture term debt 7,297 8,855 Unamortized debt discount ( 2,617 ) ( 1,296 ) Total outstanding borrowings 218,880 137,283 Less: current portion ( 1,650 ) ( 10,488 ) Total debt, less current portion $ 217,230 $ 126,795 Scheduled principal payments under the Credit Facility and joint venture term debt are $ 1.7 million in 2025, $ 1.9 million in 2025, $ 3.7 million in 2027, zero in 2028, and $ 214.2 million in 2029. Credit Facility On December 17, 2021, the Company entered into Amendment No. 2 to the Second Amended and Restated Credit Agreement. This agreement amended and restated the Company’s prior credit agreement. Pursuant to this amendment, the lenders provided a term loan in the aggregate principal amount of $ 44.1 million and a senior secured revolving credit commitment up to an aggregate principal amount of $ 140.0 million. This revolving credit commitment allowed the Company the ability to borrow loans denominated in different currencies. Additionally, the agreement extended the maturity date to December 17, 2026 , replaced LIBOR interest with Secured Overnight Financing Rate ("SOFR") interest for USD loans, Sterling Overnight Interbank Average Rate ("SONIA") for GBP loans, and Canadian Dollar Offered Rate ("CDOR") for CAD loans, and redefined certain financial covenants. On October 30, 2023, the Company entered into Amendment No. 4 to the Second Amended and Restated Credit Agreement. Pursuant to this amendment, the lenders provided an additional term loan in the aggregate principal amount of $ 75.0 million, which was subsequently used to repay a portion of the outstanding balance on the revolving credit loan. At the Company’s option, revolving loans and the term loans accrued interest at a per annum rate based on (a) either the highest of (i) the federal funds rate plus 0.5 %, or (ii) the prime lending rate of the Agent (as defined in the Credit Agreement), (b) Daily Simple SOFR plus the Daily Simple SOFR Adjustment of 0.11 % plus 1.0%, (c) 1.0%, plus a margin ranging from 1.75 % to 3.25 % depending on the Company’s Consolidated Leverage Ratio, or (d) a one/three/six-month Term SOFR Rate (as defined in the Credit Agreement) plus the Term SOFR Adjustment ranging from 0.11 % to 0.43 % plus 1.75 % to 3.25 % depending on the Company’s Consolidated Leverage Ratio. Interest on swing line loans is the Base Rate. Interest on Base Rate loans was payable quarterly in arrears on the last day of each calendar quarter and at maturity. Interest on Term SOFR rate loans was payable on the last date of each applicable Interest Period (as defined in the agreement), but in no event less than once every three months and at maturity. On October 7, 2024, the Company entered into the Third Amended and Restated Credit Agreement (the “Amended Credit Agreement”), among the Company, its subsidiaries from time to time party thereto, the lenders from time to time party thereto (the “Lenders”) and Bank of America, N.A., as administrative agent (the “Agent”), which amended and restated in its entirety the Company’s Second Amended and Restated Credit Agreement, dated as of June 11, 2019, among the Company, its subsidiaries from time to time party thereto, the lenders from time to time party thereto and the Agent. The Amended Credit Agreement provides for a senior secured revolving credit facility in an initial aggregate principal amount of up to $ 400.0 million (the "Credit Facility”). At the Company’s option, the Company may increase the aggregate principal amount of the Credit Facility from time to time by an additional aggregate principal amount of up to (a) $ 125.0 million plus (b) such additional amount, if any, as would not cause the Consolidated Secured Net Leverage Ratio (as defined in the Amended Credit Agreement) to exceed 3.00 to 1.00 after giving pro forma effect to such increased amount, in additional revolving credit and/or one or more tranches of term loans, subject to certain conditions, including the consent of the Agent and any increasing or additional lenders. The Credit Facility will mature on October 7, 2029 . The Credit Facility accrues interest (a) with respect to base rate loans, at an annual rate equal to an applicable rate of between 0.75 % and 2.25 % (fluctuating based on the Company’s Consolidated Net Leverage Ratio), plus a rate equal to the highest of (1) the Agent’s prime rate, (2) the federal funds rate plus one-half of 1.00 %, (3) Daily Simple SOFR (as defined in the Credit Agreement) plus 1.00 % and (4) 1.00 %, (b) for all other loans, at an annual rate equal to an applicable rate of between 1.75 % and 3.25 % (fluctuating based on the Company’s Consolidated Net Leverage Ratio), plus a rate determined based on the denominated currency and, as applicable pursuant to the Amended Credit Agreement, whether the Company has elected for interest on such loans to accrue at a daily rate or a term rate: (a) for term rate loans, if denominated (1) in U.S. Dollars, Term SOFR (as defined in the Amended Credit Agreement inclusive of a 0.10 % per annum adjustment), (2) in euros, EURIBOR, (3) in Canadian dollars, the Term CORRA Rate (as defined in the Credit Agreement) plus 0.29547 % for a one-month interest period and 0.32138 % for a three-month interest period or (4) in a currency other than (1)-(3), the rate per annum as designated with respect to such currency at the time such currency was approved by the Agent and the other Lenders or, if such rate is unavailable on any date of determination for any reason, a comparable or successor rate approved by the Agent, and (b) for daily rate loans, if denominated (1) in U.S. dollars, Daily Simple SOFR (as defined in the Credit Agreement inclusive of a 0.10 % per annum adjustment), (2) in pounds sterling, a rate per annum equal to SONIA (as defined in the Credit Agreement) plus 0.0326 % per annum or (3) in a currency other than (1) or (2), the rate per annum as designated with respect to such currency at the time such currency was approved by the Agent and the other Lenders or, if such rate is unavailable on any date of determination for any reason, a comparable or successor rate approved by the Agent. With respect to financial covenants, the Company is required to maintain a Consolidated Net Leverage Ratio not greater than 4.00 to 1.00 and a Consolidated Secured Net Leverage Ratio (as defined in the Credit Agreement) not greater than 3.00 to 1.00, in each case as of the last day of each fiscal quarter of the Company. At the election of the Company and subject to certain restrictions contained in the Amended Credit Agreement, following the occurrence of a Permitted Acquisition (as defined in the Credit Agreement) involving aggregate consideration of $ 15.0 million or more, such maximum Consolidated Net Leverage Ratio and Consolidated Secured Net Leverage Ratio may be increased to 4.50 to 1.00 and 3.50 to 1.00, respectively, for the fiscal quarter in which such Permitted Acquisition is consummated and the subsequent three fiscal quarters of the Company. The Company is also required to maintain a Consolidated Fixed Charge Coverage Ratio (as defined in the Amended Credit Agreement) as of the last day of each fiscal quarter of the Company of not less than 1.25 to 1.00 . As of December 31, 2024 and 2023, $ 18.9 million and $ 13.3 m illion of letters of credit were outstanding, respectively. Total unused credit availability under the Company’s senior secured term loan and senior secured revolver loan with sub-facilities for letters of credit, swing-line loans and senior secured multi-currency loans was $ 166.9 million and $ 109.4 million at December 31, 2024 and 2023, respectively. Revolving loans may be borrowed, repaid and reborrowed until October 7, 2029, at which time all outstanding balances of the Credit Facility must be repaid. The weighted average stated interest rate on outstanding borrowings was 7.07 % and 8.29 % at December 31, 2024 and 2023, respectively. The effective interest rate was 7.82 % and 7.70 % at December 31, 2024 and 2023, respectively. The Company has granted a security interest in substantially all of its assets to secure its obligations pursuant to the Credit Facility. The Company’s obligations under the Credit Facility are guaranteed by the Company’s U.S. subsidiaries and such guaranty obligations are secured by a security interest on substantially all the assets of such subsidiaries, including certain real property. The Company’s obligations under the Credit Agreement may also be guaranteed by the Company’s material foreign subsidiaries to the extent no adverse tax consequences would result to the Company. In connection with the Credit Facility, the Company paid $ 0.8 million in customary closing fees during 2021, and $ 0.4 million in customary closing fees during 2023, that were deferred and classified as a debt discount, as a result of the associated amendments being accounted for as debt modifications. In 2024, $ 0.1 million of loss on extinguishments of debt was recorded related to the Amended Credit Agreement. The remaining amount continues to be deferred and classified as a debt discount, along with $ 1.8 million in customary closing fees during 2024, as these amounts relate to portions of the Amended Credit Agreement accounted for as debt modifications. As of December 31, 2024 and 2023, the Company was in compliance with all related financial and other restrictive covenants under the Credit Facility. Joint Venture Debt On March 7, 2022, the Company's Effox-Flextor-Mader, Inc. joint venture ("EFM JV") entered into a loan agreement secured by the assets of the EFM JV in the aggregate principal amount of $ 11.0 million for the acquisition of General Rubber, LLC, as further described in Note 14. As of December 31, 2024 and 2023, $ 7.3 million and $ 8.9 million was outstanding under the loan. Principal will be paid back to the lender monthly with the final installment due by February 27, 2027. Interest is accrued at the per annum rate based on EFM JV's choice of the 1/3/6 month Term SOFR rate plus 3.25%, with a floor rate of 3.75%. Interest is paid monthly on the last day of each month. The interest rate was 7.96 % and 8.70 % a t December 31, 2024 and 2023, respectively. As of December 31, 2024, the EFM JV was in compliance with all related financial and other restrictive covenants under this loan agreement. This loan balance does not impact the Company’s borrowing capacity or the financial covenants under the Credit Facility. As of December 31, 2024, there were $ 16.2 million in current assets, $ 25.4 million in long-lived assets, and $ 14.0 million in total liabilities related to the EFM JV included in the Consolidated Balance Sheets. As of December 31, 2023, there were $ 14.5 million in current assets, $ 26.7 million in long-lived assets, and $ 12.5 million in total liabilities related to the EFM JV included in the Consolidated Balance Sheets. For the years ended December 31, 2024, 2023, and 2022, EFM JV accounted for $ 47.0 million, $ 37.7 million and $ 35.8 million in revenue, respectively. For the years ended December 31, 2024, 2023, and 2022 , EFM JV accounted for $ 4.1 million, $ 4.2 million and $ 2.3 million in net income, respectively. Foreign Debt The Company has a number of bank guarantee facilities and bilateral lines of credit in various foreign countries currently supported by cash, letters of credit or pledged assets and collateral under the Credit Facility. The Credit Facility allows letters of credit and bank guarantee issuances of up to $ 80.0 million from the bilateral lines of credit secured by pledged assets and collateral under the Credit Facility. As of December 31, 2024 and 2023, $ 45.9 million and $ 45.8 million in bank guarantees were outstanding, respectively, inclusive of $ 1.1 million and $ 1.3 million in outstanding bank guarantees as of December 31, 2024 and 2023, respectively, under a Euro-denominated bank guarantee agreement held by a subsidiary of the Company located in the Netherlands and secured by local assets, as well as $ 2.1 million and $ 2.3 million in outstanding bank guarantees as of December 31, 2024 and 2023, respectively, under Yuan-denominated bank guarantee agreements held by a subsidiary of the Company located in China and secured by local assets. As of December 31, 2024 , the borrowers of these facilities and agreements were in compliance with all related financial and other restrictive covenants.

Shareholders' Equity

Shareholders' Equity	12 Months Ended
	Dec. 31, 2024
Equity [Abstract]
Shareholders' Equity	9. Shareholders’ Equity Share-Based Compensation The Company’s 2021 Equity and Incentive Compensation Plan (the “2021 Plan”) was approved by the Company’s stockholders on May 25, 2021 which replaced the 2017 Equity Incentive Plan (the “2017 Plan”). No further grants will be made under the 2017 Plan, but outstanding awards under the 2017 Plan will continue to be unaffected in accordance with their terms. The 2021 Plan permits the granting of stock options with an exercise price equal to or greater than the fair market value of the Company’s common stock at the date of the grant, and other stock-based awards, including appreciation rights, restricted stock, restricted stock units, performance shares and dividend equivalents. A total of 2.6 million shares of common stock were authorized for issuance. As of December 31, 2024, 1.3 million shares remain available for future issuance. Stock options granted to employees generally vest equally over a period of four years from the date of the grant with a maximum contractual term of ten years from the date of the grant. Stock awards granted to employees generally vest over a period of two to four years from the date of the grant. On July 6, 2020, in connection with the appointment of the Chief Executive Officer, the Company granted its Chief Executive Officer approximately 94,000 restricted stock units with a fair value of $ 0.6 million, which are being expensed over the vesting period of four years . The Company also granted its Chief Executive Officer approximately 1.2 million stock options with a fair value of $ 2.4 million that are being expensed over the vesting period of four years . T hese grants of restricted stock units and stock options (“2020 Inducement Awards”) were approved by the Board of Directors of the Company and are not included in any of the aforementioned Plans. Share-based compensation expense for stock options and restricted stock awards under these plans was $ 7.2 million, $ 4.3 million and $ 3.9 mi llion for the years ended December 31, 2024, 2023 and 2022, respectively. The tax benefit related to share-based compensation expense was $ 1.6 million, $ 0.8 million and $ 0.5 mi llion in 2024, 2023 and 2022, respectively. Employee Stock Purchase Plan The 2020 Employee Stock Purchase Plan (“ESPP”) was approved by shareholders on June 11, 2020. The ESPP is administered by the Compensation Committee. The ESPP allows employees to purchase shares of common stock at a 15 % discount from market price and pay for the shares through payroll deductions. Eligible employees can enter the plan at specific “offering dates” that occur in six-month intervals. The aggregate maximum number of shares of the Company’s common stock that may be granted under the ESPP is 1.3 million shares over the ten-year term of the ESPP, subject to adjustment in the event there is a reorganization, merger, consolidation, recapitalization, reclassification, stock split-up, or similar transaction with respect to the common stock. As of December 31, 2024 , 1.1 million shares remain available for future issuance. The Company recognized employee stock purchase plan expense of $ 0.3 million, $ 0.2 million and $ 0.1 million in 2024, 2023 and 2022, respectively. Stock Options The estimated weighted-average fair value of stock options was determined using the Black-Scholes option-pricing model at the grant date based on the following assumptions: Expected Volatility : The Company utilizes a volatility factor based on the Company’s historical stock prices for a period of time equal to the expected term of the stock option utilizing weekly price observations. Expected Term : Due to limited historical exercise data, the Company utilizes the simplified method of determining the expected term based on the vesting schedules and terms of the stock options. Risk-Free Interest Rate : The risk-free interest rate factor utilized is based upon the implied yields currently available on U.S. Treasury zero-coupon issues over the expected term of the stock options. The Company granted approximately 25,000 stock options during the year ended December 31, 2024 . No stock options were granted for the years ended December 31, 2023, and 2022. The fair value of stock options is recorded as compensation expense on a straight-line basis over the vesting periods (which approximates the requisite service period) of the options and forfeitures are accounted for when they occur. Information related to all stock options under the 2021 Plan, 2017 Plan and 2007 Plan, and the 2020 Inducement Awards for 2024, 2023 and 2022 is shown in the tables below: (Shares in thousands) Shares Weighted Weighted Aggregate Outstanding at December 31, 2023 1,247 $ 11.09 3.4 years Grants 25 21.32 Forfeitures ( 2 ) 13.08 Exercised ( 28 ) 12.09 Outstanding and expected to vest at December 31, 2024 1,242 11.35 2.6 years $ 23,902 Exercisable at December 31, 2024 1,216 11.15 2.5 years $ 23,676 (Shares in thousands) Shares Weighted Weighted Aggregate Outstanding at December 31, 2022 1,440 $ 11.30 4.0 years Forfeitures ( 92 ) 13.43 Exercised ( 101 ) 11.93 Outstanding and expected to vest at December 31, 2023 1,247 11.09 3.4 years $ 11,452 Exercisable at December 31, 2023 942 11.10 3.4 years $ 8,652 (Shares in thousands) Shares Weighted Weighted Aggregate Outstanding at December 31, 2021 1,514 $ 11.19 4.9 years Forfeitures ( 32 ) 10.55 Exercised ( 42 ) 8.15 Outstanding and expected to vest at December 31, 2022 1,440 11.30 4.0 years $ 1,766 Exercisable at December 31, 2022 833 11.47 3.6 years $ 923 The Company received $ 0.4 million, $ 1.2 million and $ 0.4 million of cash from employees exercising options in 2024, 2023 and 2022, respectively. The intrinsic value of options exercised during the years ended December 31, 2024, 2023 and 2022 was $ 0.4 million, $ 0.3 million and $ 0.2 million, respectively. Restricted Stock Awards Information related to restricted stock awards under the 2021 Plan, 2017 Plan, 2007 Plan, and the 2020 Inducement Awards for 2024, 2023 and 2022 is shown in the table below. The fair value of restricted stock awards is based on the price of the stock in the open market on the date of the grant, and the fair value of performance-based restricted stock units is determined by using the Monte Carlo valuation model. The fair value of the restricted stock awards is recorded as compensation expense on a straight-line basis over the vesting periods of the awards and forfeitures are accounted for when they occur. (Shares in thousands) Shares Weighted Nonvested at December 31, 2021 1,033 $ 7.17 Granted 755 5.74 Vested ( 355 ) 6.80 Forfeited ( 255 ) 6.41 Nonvested at December 31, 2022 1,178 6.53 Granted 734 16.12 Vested ( 417 ) 6.56 Forfeited ( 174 ) 7.19 Nonvested at December 31, 2023 1,321 11.77 Granted 356 22.03 Vested ( 409 ) 9.19 Forfeited ( 74 ) 14.29 Nonvested at December 31, 2024 1,194 14.98 The fair value of awards vested and released during the years ended December 31, 2024, 2023 and 2022 was $ 4.1 million, $ 5.9 million, and $ 2.3 million, respectively. Unrecognized compensation expense related to nonvested shares of stock options, restricted stock and performance units was $ 11.7 million at December 31, 2024 and will be recognized over a weighted average vesting period of 1.1 years. Common Stock Repurchase On May 10, 2022, the Company's Board of Directors authorized a share repurchase program under which the Company may purchase up to $ 20.0 million of its outstanding shares of common stock through April 30, 2025. The authorization permits the Company to repurchase shares in the open market, through accelerated share repurchases, block trades, Rule 10b5-1 trading plans or through privately negotiated transactions in accordance with applicable laws, rules and regulations. During the year ended December 31, 2022, the Company repurchased and retired approximately 1,032,000 shares of common stock at a cost of $ 7.0 million under the program. No repurchases occurred during the year ended December 31, 2023. During the year ended December 31, 2024, the Company repurchased and retired approximately 230,000 shares of common stock at a cost of $ 5.0 million under the program. Dividends The Company's dividend policy and the payment of cash dividends under that policy are subject to the Board of Director’s continuing determination that the dividend policy and the declaration of dividends are in the best interest of the Company’s stockholders. Future dividends and the dividend policy may be changed at the Company’s discretion at any time. Payment of dividends is also subject to the continuing compliance with financial covenants under the Credit Facility. The Company has not paid a cash dividend on its common stock during the years ended December 31, 2024, 2023 or 2022 .

Pension and Employee Benefit Pl

Pension and Employee Benefit Plans	12 Months Ended
	Dec. 31, 2024
Retirement Benefits [Abstract]
Pension and Employee Benefit Plans	10. Pension and Employee Benefit Plans The Company sponsors a non-contributory defined benefit pension plan for certain union employees. The accrual of future benefits for all participants who are non-union employees was frozen effective December 31, 2008. The plan is funded in accordance with the funding requirements of the Employee Retirement Income Security Act of 1974. The accumulated benefit obligation as of December 31, 2024, 2023 and 2022 , was $ 24.7 million, $ 26.8 million, and $ 27.4 million , respectively. The following tables set forth the plan changes in benefit obligations, plan assets and funded status on the measurement dates: December 31, (table only in thousands) 2024 2023 2022 Change in projected benefit obligation: Projected benefit obligation at beginning of year $ 26,760 $ 27,350 $ 35,035 Interest cost 1,215 1,274 877 Actuarial (gain) loss ( 1,237 ) 183 ( 6,540 ) Benefits paid ( 2,073 ) ( 2,047 ) ( 2,022 ) Projected benefit obligation at end of year 24,665 26,760 27,350 Change in plan assets: Fair value of plan assets at beginning of year 22,646 21,821 29,474 Actual return on plan assets 3,236 2,872 ( 5,631 ) Employer contributions 1,335 — — Benefits paid ( 2,073 ) ( 2,047 ) ( 2,022 ) Fair value of plan assets at end of year 25,144 22,646 21,821 Funded status at end of year $ 479 $ ( 4,114 ) $ ( 5,529 ) Weighted-average assumptions used to determine benefit obligations for the year ended December 31: Discount rate 5.35 % 4.70 % 4.90 % The funded status as of December 31, 2024, 2023 and 2022, was $ 0.5 million, $( 4.1 ) million, and $( 5.5 ) million , respectively and is recognized in "Deferred charges and other assets" or "Other liabilities" within the Consolidated Balance Sheets. The details of net periodic benefit cost for pension benefits included in the accompanying Consolidated Statements of Income are as follows: December 31, (table only in thousands) 2024 2023 2022 Interest cost $ 1,215 $ 1,274 $ 877 Expected return on plan assets ( 1,223 ) ( 1,142 ) ( 1,560 ) Amortization of net loss 226 297 263 Net periodic benefit income (expense) $ 218 $ 429 $ ( 420 ) Other changes in plan assets and benefit obligations recognized in other comprehensive income are as follows: December 31, (table only in thousands) 2024 2023 2022 Net (gain) loss $ ( 3,249 ) $ ( 1,548 ) $ 651 Amortization of net actuarial loss ( 226 ) ( 297 ) ( 263 ) Total recognized in other comprehensive income (loss) $ ( 3,475 ) $ ( 1,845 ) $ 388 Total recognized in net periodic benefit cost and other comprehensive income (loss) $ ( 3,257 ) $ ( 1,416 ) $ ( 32 ) Weighted-average assumptions used to determine net periodic benefit costs are as follows: December 31, 2024 2023 2022 Discount Rate 4.70 % 4.90 % 2.55 % Expected return on assets 5.50 % 5.50 % 5.50 % The basis of the long-term rate of return assumption reflects the current asset mix for the pension plan of approxi mately 30 % to 40 % debt securities and 60 % to 70 % equity securities with assumed average annual returns of approximately 4 % to 6 % for debt securities and 8 % to 12 % for equity securities. The investment portfolio for the pension plan will be adjusted periodically to mainta in the current ratios of debt securities and equity securities. Additional consideration is given to the historical returns for the pension plan as well as future long range projections of investment returns for each asset category. The long-term rate of return also considers administrative expenses of the plan. Benefits under the plan is not based on wages and, therefore, future wage adjustments have no effect on the projected benefit obligation. During 2024, 2023 and 2022, the Company updated the mortality tables (RP-2021 Total Mortality Table, RP-2020 Total Mortality Table, and RP-2019 Total Mortality Table for each respective year) in the underlying assumptions used to determine the benefit obligation. Pension plan assets are invested in trusts comprised primarily of investments in various debt and equity funds. A fiduciary committee establishes the target asset mix and monitors asset performance. The expected rate of return on assets includes the determination of a real rate of return for equity and fixed income investment applied to the portfolio based on their relative weighting, increased by an underlying inflation rate. The Company's defined benefit pension plan asset allocation by asset category is as follows: Target Percentage of 2024 2024 2023 Asset Category: Cash and cash equivalents 0 % 1 % 1 % Equity securities 70 % 74 % 76 % Debt securities 30 % 25 % 23 % Total 100 % 100 % 100 % The Company made contributions to the pension plan of $ 1.3 million during the year ended December 31, 2024 . No contributions were made in 2023 or 2022. Estimated pension plan cash obligations are $ 2.1 million annually for 2025 through 2029, and a total of $ 9.5 million for the years 2030 through 2034. Fair Value Measurements of Pension Plan Assets Following is a description of the valuation methodologies used for pension assets measured at fair value: Cash and cash equivalents : Cash and cash equivalents consist primarily of cash on deposit in money market funds. Cash and cash equivalents are stated at cost, which approximates fair value. Equity securities : Equity securities consist of various managed funds that invest primarily in common stocks. These securities are valued at the net asset value of shares held by the plan at year end. The net asset value is calculated based on the underlying shares and investments held by the funds. Debt securities : Debt securities consist of U.S. government and agency securities, corporate bonds and notes, and managed funds that invest in fixed income securities. U.S governmental and agency securities are valued at closing prices reported in the active market in which the individual securities are traded. Corporate bonds and notes are valued using market inputs including benchmark yields, reported trades, broker/dealer quotes, issuer spreads, two-sided markets, benchmark securities, bids, offers and reference data including market research publications. Inputs may be prioritized differently at certain times based on market conditions. Managed funds are valued at the net asset value of shares held by the plan at year end. The net asset value is calculated based on the underlying investments held by the fund. The preceding methods described may produce a fair value calculation that may not be indicative of net realizable value or reflective of future fair values. Furthermore, although the Company believes its valuation methods are appropriate and consistent with other market participants, the use of different methodologies or assumptions to determine the fair value of certain financial instruments could result in a different fair value measurement at the reporting date. The Company’s assessment of the significance of a particular input to the fair value measurement requires judgment and may affect the valuation of the fair value of assets and liabilities and their placement within the fair value hierarchy levels. The levels assigned to the defined benefit plan assets as of December 31, 2024, are summarized in the tables below: (table only in thousands) Level 1 Level 2 Level 3 Total Pension assets, at fair value: Cash and cash equivalents $ 198 $ — $ — $ 198 Equity securities 18,622 — — 18,622 Debt securities 6,324 — — 6,324 Total assets $ 25,144 $ — $ — $ 25,144 The levels assigned to the defined benefit plan assets as of December 31, 2023, are summarized in the tables below: (table only in thousands) Level 1 Level 2 Level 3 Total Pension assets, at fair value: Cash and cash equivalents $ 311 $ — $ — $ 311 Equity securities 17,233 — — 17,233 Debt securities 5,102 — — 5,102 Total assets $ 22,646 $ — $ — $ 22,646 The Company contributes to a number of multiemployer defined benefit pension plans under the terms of collective-bargaining agreements that cover its union-represented employees. The risks of participating in these multiemployer plans are different from single-employer plans in the following aspects: • Assets contributed to the multiemployer plan by one employer may be used to provide benefits to employees of other participating employers. • If a participating employer stops contributing to the plan, the unfunded obligations of the plan may be borne by the remaining participating employers. • If the Company chooses to stop participating in some of its multiemployer plans, CECO may be required to pay those plans an amount based on the underfunded status of the plan, referred to as a withdrawal liability. The Company’s participation in these plans for the year ended December 31, 2024, is outlined in the table below. The “EIN/Pension Plan Number” column provides the Employer Identification Number and the three-digit plan number, if applicable. Unless otherwise noted, the most recent Pension Protection Act zone status available in 2024 is for the plan’s year-end at December 31, 2023. The zone status is based on information that the Company received from the plan and is certified by the plan’s actuary. Among other factors, plans in the red zone are generally less than 65% funded, plans in the yellow zone are less than 80% funded, and plans in the green zone are at least 80% funded. The “FIP/RP Status Pending/Implemented” column indicates plans for which a financial improvement plan (FIP) or a rehabilitation plan (RP) is either pending or has been implemented. The last column lists the expiration date(s) of the collective-bargaining agreement(s) to which the plans are subject. Pension Fund EIN/Pension Pension FIF/RP Status Surcharge Expiration Sheet Metal Workers’ National Pension Fund 52-6112463 /001 Green FIF: Yes - Implemented Implemented No Various Sheet Metal Workers Local 224 Pension Plan 31-6171353 /001 Yellow FIF: Yes - Implemented No n/a Sheet Metal Workers Local No. 177 Pension Fund 62-6093256 /001 Green Is not subject No April 30, 2026 Kirk and Blum was listed in the Sheet Metal Workers Local No. 177 Pension Fund’s Form 5500 as providing more than five percent of total contributions for the year ended December 31, 2023. The Company was not listed in any of the other plans’ Forms 5500 as providing more than five percent of the total contributions for the plans and plan years. At the date the financial statements were issued, Forms 5500 were not available for the plan years ended December 31, 2024. The Company has no current intention of withdrawing from any plan and, therefore, no liability has been provided in the accompanying consolidated financial statements. Amounts charged to pension expense under the above plans including the multi-employer plans totaled $ 0.2 million, $ 0.5 million, and $ 0.4 million for the years ended December 31, 2024, 2023 and 2022, respectively. The Company has a 401(k) savings retirement plan for employees of certain of its subsidiaries. The plan covers substantially all employees who have 30 days of service, and who have attained 18 years of age. The plan allows the Company to make discretionary contributions and provides for employee salary deferrals of up to 100 %. The Company made aggregate matching contributions and discretionary contributions of $ 2.3 million, $ 2.0 million, and $ 1.5 million during the years ended December 31, 2024, 2023 and 2022 , respectively.

Leases

Leases	12 Months Ended
	Dec. 31, 2024
Leases [Abstract]
Leases	11. Leases The lease accounting guidance under ASC 842 establishes a right-of-use (“ROU”) model that requires a lessee to record a ROU asset and a lease liability on the balance sheet for all leases with terms longer than 12 months. The Company's leasing activity is primarily related to buildings used for manufacturing, warehousing, sales, and administrative activities. The Company determines if an arrangement is a lease at inception. Many of the Company's lease agreements contain renewal options; however, the Company does not recognize ROU assets or lease liabilities for renewal periods unless it is determined that lease renewal is reasonably certain at inception or when a triggering event occurs. Some of the Company's lease agreements contain rent escalation clauses, free-rent periods, or other lease concessions. The Company recognizes its minimum rental expense on a straight-line basis based on the fixed components of a lease arrangement. Variable lease costs represent amounts that are not fixed in nature and are not tied to an index or rate, and are recognized as incurred. The Company's variable lease costs are not material. In determining its ROU assets and lease liabilities, the Company applies a discount rate to the minimum lease payments within each lease agreement. ASC 842 requires the Company to use the rate of interest that a lessee would have to pay to borrow on a collateralized basis over a similar term an amount equal to the lease payments in a similar economic environment. When the Company cannot readily determine the discount rate implicit in the lease agreement, it utilizes its fully collateralized incremental borrowing rate. To estimate its specific incremental borrowing rates the Company considers, among other factors, interest rates on its existing credit facilities, risk-free rates, the types of assets being leased, and the term of the leases. The components of lease expense were as follows: December 31, (table only in thousands) 2024 2023 2022 Operating lease cost (1) $ 6,146 $ 4,643 $ 3,558 Finance lease cost: Amortization of right-of-use assets 309 232 309 Interest on lease liability 232 289 289 Total finance lease cost 541 521 598 Total lease cost $ 6,687 $ 5,164 $ 4,156 (1) Includes variable lease costs which are immaterial. Supplemental cash flow information related to leases was as follows: December 31, (table only in thousands) 2024 2023 2022 Cash paid for amounts included in the measurement of lease liabilities Operating cash flows from operating leases $ 5,594 $ 4,567 $ 3,637 Operating cash flows from finance leases $ 232 $ 289 $ 289 Financing cash flows from finance leases $ 925 $ 907 $ 600 Right of use assets obtained in exchange for lease obligations Operating leases $ 13,669 $ 7,697 $ 3,487 Supplemental balance sheet information related to leases was as follows: December 31, (table only in thousands) 2024 2023 Operating leases Right-of-use assets from operating leases $ 25,102 $ 16,256 Accrued expenses $ 4,262 $ 4,278 Operating lease liabilities 20,230 11,417 Total operating lease liabilities $ 24,492 $ 15,695 Finance leases Property, plant and equipment, net $ 1,711 $ 2,097 Accrued expenses $ 743 $ 693 Other liabilities 4,101 4,844 Total finance lease liabilities $ 4,844 $ 5,537 Weighted-average remaining lease term were as follows: December 31, 2024 2023 Operating leases 9 years 8 years Finance leases 7 years 7 years Weighted-average discount rate Operating leases 6.4 % 5.8 % Finance leases 4.6 % 4.6 % As of December 31, 2024, maturities of lease liabilities were as follows: (table only in thousands) Operating Leases Finance Leases 2025 $ 5,810 $ 943 2026 4,886 962 2027 4,026 982 2028 3,641 1,001 2029 3,089 1,021 Thereafter 9,709 575 Total minimum lease payments $ 31,161 $ 5,484 Less imputed interest ( 6,669 ) ( 640 ) Lease liability $ 24,492 $ 4,844

Commitments and Contingencies

Commitments and Contingencies	12 Months Ended
	Dec. 31, 2024
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies	12. Commitments and Contingencies Legal Proceedings Asbestos cases The Company's subsidiary, Met-Pro, beginning in 2002 began to be named in asbestos-related lawsuits filed against a large number of industrial companies including, in particular, those in the pump and fluid handling industries. In management’s opinion, the complaints typically have been vague, general and speculative, alleging that Met-Pro, along with the numerous other defendants, sold unidentified asbestos-containing products and engaged in other related actions which caused injuries (including death) and loss to the plaintiffs. Counsel has advised that more recent cases typically allege more serious claims of mesothelioma. The Company’s insurers have hired attorneys who, together with the Company, are vigorously defending these cases. Many cases have been dismissed after the plaintiff fails to produce evidence of exposure to Met-Pro’s products. In those cases, where evidence has been produced, the Company’s experience has been that the exposure levels are low and the Company’s position has been that its products were not a cause of death, injury or loss. The Company has been dismissed from or settled a large number of these cases. Cumulative settlement payments from 2002 through December 31, 2024 for cases involving asbestos-related claims were $ 7.5 million which together with all legal fees other than corporate counsel expenses have substantially been paid by the Company’s insurers. The average cost per settled claim, excluding legal fees, was approximately $ 34,000 . As of December 31, 2024 and 2023 , the amount recorded within "Accrued expenses" on the Consolidated Balance Sheets was $ 0.2 million and zero , respectively, related to asbestos litigation. Based upon the most recent information available to the Company regarding such claims, there were a total of 347 cases pending against the Company as of December 31, 2024 (with Illinois, New York, Pennsylvania and West Virginia having the largest number of cases), as compared with 313 cases that were pending as of December 31, 2023. During 2024, 207 new cases were filed against the Company, and the Company was dismissed from 133 cases and settled 40 cases. Most of the pending cases have not advanced beyond the early stages of discovery, although a number of cases are on schedules leading to or are scheduled for trial. The Company believes that its insurance coverage is adequate for the cases currently pending against the Company and for the foreseeable future, assuming a continuation of the current volume, nature of cases and settlement amounts. However, the Company has no control over the number and nature of cases that are filed against it, nor as to the financial health of its insurers or their position as to coverage. The Company also presently believes that none of the pending cases will have a material adverse impact upon the Company’s results of operations, liquidity or financial condition. Other The Company is also a party to routine contract and employment-related litigation matters, warranty claims and routine audits of state and local tax returns arising in the ordinary course of its business. The final outcome and impact of open matters, and related claims and investigations that may be brought in the future, are subject to many variables, and cannot be predicted. The Company records accruals for estimated losses relating to claims and lawsuits when available information indicates that a loss is probable and the amount of the loss, or range of loss, can be reasonably estimated. The Company expenses legal costs as they are incurred. The Company is not aware of any pending claims or assessments, other than as described above, which may have a material adverse impact on its liquidity, financial position, results of operations, or cash flows.

Income Taxes

Income Taxes	12 Months Ended
	Dec. 31, 2024
Income Tax Disclosure [Abstract]
Income Taxes	13. Income Taxes Income before income taxes was generated in the United States and globally as follows: (in thousands) 2024 2023 2022 Domestic $ 8,222 $ 7,444 $ 11,971 Foreign 9,469 14,081 11,718 Total income before income taxes $ 17,691 $ 21,525 $ 23,689 Certain of the Company’s undistributed earnings of its foreign subsidiaries are not permanently reinvested, as management intends to repatriate foreign-held cash as needed to meet domestic cash needs for operating, investing, and financing activities. A liability of $ 0.9 million has been recorded for the deferred taxes on such undistributed foreign earnings as of December 31, 2024. The deferred taxes are attributable primarily to the foreign withholding taxes that would become payable should the Company repatriate cash held in its foreign operations. Income tax expense consisted of the following for the years ended December 31: (in thousands) 2024 2023 2022 Current: Federal $ 2,829 $ 3,939 $ 5,009 State 754 1,100 836 Foreign 3,359 2,107 1,755 Total current tax expense 6,942 7,147 7,600 Deferred: Federal $ ( 1,905 ) ( 495 ) ( 3,001 ) State ( 295 ) ( 208 ) ( 231 ) Foreign ( 1,472 ) 580 1,058 Total deferred tax expense ( 3,672 ) ( 123 ) ( 2,174 ) Total tax expense $ 3,270 $ 7,024 $ 5,426 The income tax expense differs from the statutory rate due to the following: (in thousands) 2024 2023 2022 Tax expense at statutory rate $ 3,715 $ 4,488 $ 4,975 Increase (decrease) in tax resulting from: State income tax, net of federal benefit 296 541 340 Capital loss carryforward ( 618 ) — — Other permanent differences 961 290 383 Impact of rate differences and adjustments 1,438 ( 1,046 ) 565 United States tax credits and incentives ( 534 ) ( 532 ) ( 626 ) Foreign tax credits and incentives ( 3,142 ) ( 812 ) ( 895 ) Change in valuation allowance ( 1,508 ) 1,782 ( 526 ) Foreign withholding taxes on repatriation of foreign earnings 253 ( 592 ) 139 Earnout expense (income) 28 85 ( 48 ) Equity compensation ( 82 ) 460 339 Excess compensation 859 360 11 Provision-to-return adjustments ( 468 ) 528 ( 189 ) Investment in joint venture ( 371 ) ( 155 ) 375 Net effect GILTI and FDII 2,871 1,400 565 Other ( 428 ) 227 18 Total tax expense $ 3,270 $ 7,024 $ 5,426 Deferred income taxes reflect the future tax consequences of temporary differences between the carrying amounts of assets and liabilities for financial reporting purposes and the amounts used for income tax purposes and tax credit carry forwards. The net deferred tax liabilities consisted of the following at December 31: (in thousands) 2024 2023 Gross deferred tax assets: Accrued expenses $ 3,135 $ 729 Reserves on assets 2,370 2,769 Share-based compensation awards 731 372 Minimum pension - 920 Net operating loss carry-forwards 3,437 3,785 Tax credit carry-forwards 2,461 2,302 Investment in joint venture 1,333 926 Leases 6,020 3,699 Research and development costs 4,549 3,857 Total gross deferred tax assets 24,036 19,359 Valuation allowances ( 5,415 ) ( 6,545 ) $ 18,621 $ 12,814 Gross deferred tax liabilities: Depreciation ( 2,099 ) ( 1,809 ) Goodwill and intangibles ( 19,652 ) ( 14,299 ) Prepaid expenses and inventory ( 45 ) ( 95 ) Withholding tax on unremitted foreign earnings ( 915 ) ( 662 ) Leases ( 5,883 ) ( 3,571 ) Revenue recognition ( 407 ) ( 694 ) Minimum pension ( 106 ) — Other 130 ( 218 ) Total gross deferred tax liabilities ( 28,977 ) ( 21,348 ) Net deferred tax liabilities $ ( 10,356 ) $ ( 8,534 ) As of December 31, 2024, federal net operating loss carry forwards t otal $ 3.7 million, which expire from 2029 to 2034 . As of December 31, 2024, state and local net operating loss carry forwards total $ 28.3 million, which expire from 2025 to 2044 . The Company has recorded a valuation allowance on certain of these net operating loss carry forwards to reflect expected realization. The Company also has net operating loss carry forwards in foreign jurisdictions totaling $ 7.3 million. As of December 31, 2024 and 2023, the Company has recorded a valuation reserve, including but not limited to net operating losses, in the amount of $ 5.4 million and $ 6.5 million, respectively. The changes in the valuation allowance resulted in additional income tax expense (benefit) of $( 1.1 ) million, $ 1.5 million, and $( 0.5 ) million in 2024, 2023, and 2022, respectively. In assessing the realizability of deferred tax assets, management considers whether it is more likely than not that some portion or all of the deferred tax assets will not be realized. The ultimate realization of deferred tax assets is dependent upon the generation of future taxable income during the periods in which those temporary differences become deductible. Management considers the scheduled reversal of deferred tax liabilities (including the impact of available carryback and carry forward periods), projected future taxable income, and tax-planning strategies in making this assessment. Based on this assessment, management believes it is more likely than not that the Company will realize the benefits of these deductible differences, net of the existing valuation allowances at December 31, 2024. The amount of the deferred tax assets considered realizable, however, could be reduced in the near term if estimates of future taxable income during the carryforward period are reduced. The Company accounts for uncertain tax positions pursuant to FASB ASC Topic 740. The Company recognizes the effect of income tax positions only if those positions are more likely than not of being sustained. Recognized income tax positions are measured at the largest amount that is greater than 50 % likely of being realized. Changes in recognition or measurement are reflected in the period in which the change in judgment occurs. A reconciliation of the beginning and ending amount of uncertain tax position reserves included in Other liabilities on the Consolidated Balance Sheets is as follows: (in thousands) 2024 2023 Balance as of January 1, $ 151 $ 144 Additions for tax positions of acquired companies 927 — Additions for tax positions taken in prior years 6 7 Balance as of December 31, $ 1,084 $ 151 The Company recognizes interest and penalties related to uncertain tax positions in income tax expense. The reserve for uncertain tax positions includes $ 0.1 million of interest and penalties as of both December 31, 2024 and 2023. The favorable settlement of all uncertain tax positions would impact the Company’s effective income tax rate. Tax years going back to 2019 remain open for examination by all significant federal, state and foreign authorities. The Organization for Economic Co-operation and Development/G20 Inclusive Framework on Base Erosion and Profit Shifting published the Pillar Two model rules designed to address the tax challenges arising from the digitalization of the global economy which introduces a 15 % global minimum corporate tax for companies with revenues above € 750 million calculated on a country-by-country basis. On February 1, 2023, the FASB indicated that it believes the minimum tax imposed under Pillar Two is an alternative minimum tax, and, accordingly, deferred tax assets and liabilities associated with the minimum tax would not be recognized or adjusted for the estimated future effects of the minimum tax but would be recognized in the period incurred. Aspects of Pillar Two legislation have been enacted in certain jurisdictions in which the Company operates effective for accounting periods commencing on or after January 1, 2024. However, based on the current revenue threshold, the Company is currently not subject to Pillar Two taxes.

Acquisitions

Acquisitions	12 Months Ended
	Dec. 31, 2024
Business Combinations [Abstract]
Acquisitions	14. Acquisitions Verantis Environmental Solutions Group On December 17, 2024, the Company acquired 100 % of the equity interests of Verantis Environmental Solutions Group ("Verantis") for $ 65.5 million in cash, which was financed with a draw on the Company's revolving credit facility. Verantis is a global leader in engineering services and environmental systems that focuses on process improvement in a wide range of general industrial and high technology processes within the Industrial Processing Solutions segment. T he following table summarizes the preliminary fair values of the assets acquired and liabilities assumed at the date of closing. (in thousands) Current assets (including accounts receivable of $ 10,557 ) $ 21,107 Property and equipment 373 Intangible - finite life 22,070 Goodwill 44,676 Other assets 142 Total assets acquired 88,368 Current liabilities assumed ( 17,595 ) Deferred income tax liability ( 4,349 ) Other liabilities assumed ( 928 ) Net assets acquired $ 65,496 The Company acquired technology, customer lists and tradename intangible assets valued at $ 2.4 million, $ 17.0 million and $ 2.6 million, respectively. These assets were determined to have useful lives of 7 , 10 and 10 years, respectively. During the year ended December 31, 2024, Verantis accounted f or $ 2.4 million in revenue and $ 0.2 m illion of net income in the Company's results. WK Group On October 2, 2024, the Company acquired 100 % of the equity interests of WK Group for $ 6.8 million in cash, which was financed with a draw on the Company's revolving credit facility. As additional consideration in the acquisition of WK Germany KG, GmbH and WK Asia-Pacific Pte. Ltd. (collectively, "WK Group"), the former owners of WK Group are also entitled to earn-out payments up to $ 27.5 million based upon specified financial results through September 30, 2025. Based on projections at the acquisition date, the Company estimated the fair value of the earn-out to be $ 6.3 million, recorded within "Accrued expenses" on its Consolidated Balance Sheets. This fair value measurement is based on inputs not observable in the market, which is considered Level 3 on the fair value hierarchy. WK Group designs and engineers a broad range of cutting-edge technical equipment and systems for process and environmental and surface technology applications, as well as innovative sustainable solutions within the Industrial Processing Solutions segment. T he following table summarizes the preliminary fair values of the assets acquired and liabilities assumed at the date of closing. (in thousands) Current assets (including accounts receivable of $ 9,705 ) $ 20,294 Property and equipment 853 Intangible - finite life 3,114 Goodwill 2,981 Other assets 441 Total assets acquired 27,683 Current liabilities assumed ( 12,430 ) Deferred income tax liability ( 854 ) Other liabilities assumed ( 1,320 ) Net assets acquired $ 13,079 The Company acquired technology, customer lists and tradename intangible assets valued at $ 1.0 million, $ 1.2 million and $ 1.0 million, respectively. These assets were determined to have useful lives of 7 , 10 and 10 years, respectively. During the year ended December 31, 2024, WK Group accounted for $ 4.6 million in revenue and $ 0.7 mil lion of net loss in the Company's results. EnviroCare International LLC On July 29, 2024, the Company acquired 100 % of the equity interests of EnviroCare International LLC (“EnviroCare") for $ 16.8 million, including $ 15.7 million paid at closing, which was financed with a draw on the Company's revolving credit facility, and a seller promissory note of $ 1.7 million, partially offset by a working capital adjustment of $ 0.7 million. EnviroCare is an international designer and provider of industrial exhaust air contamination treatment and control systems, solutions and services across a wide range of industrial and municipal applications within the Industrial Processing Solutions segment. The following table summarizes the preliminary fair values of the assets acquired and liabilities assumed at the date of closing. (in thousands) Current assets (including cash of $ 596 and accounts receivable of $ 405 ) $ 3,111 Property and equipment 17 Intangible - finite life 7,250 Goodwill 11,348 Total assets acquired 21,726 Current liabilities assumed ( 5,024 ) Net assets acquired $ 16,702 The Company acquired technology, customer lists and tradename intangible assets valued at $ 0.8 million, $ 0.8 million and $ 5.7 million, respectively. These assets were determined to have useful lives of 7 , 10 and 10 years, respectively. During the year ended December 31, 2024, EnviroCare accounted for $ 6.0 million in revenue and $ 0.9 million of net income in the Company's results. Kemco Systems Co., LLC On August 23, 2023, the Company acquired 100 % of the equity interests of Kemco for $ 24.0 million in cash, which was financed with a draw on the Company’s revolving credit facility. During the year ended December 31, 2024, the Company received $ 0.4 million from the former owners of Kemco as a working capital adjustment, reducing the purchase price to $ 23.6 million. As additional consideration, the former owners of Kemco are entitled to earnout payments up to $ 4.0 million based upon specified financial results through August 31, 2026, of which $ 2.8 million was paid during the year ended December 31, 2024. Based on projections at the acquisition date, the Company estimated the fair value of the earnout to be $ 2.2 million, which was subsequently adjusted to $ 2.9 million during the year ended December 31, 2024. This fair value measurement is based on inputs not observable in the market, which is considered Level 3 on the fair value hierarchy. The remaining $ 0.1 million earnout liability was recorded i n "Accrued expenses" on its Consolidated Balance Sheets as of December 31, 2024. Kemco designs and manufactures energy and water conservation systems and equipment for applications regarding wastewater reuse and recycle, heat recovery, water heating, and vapor energy. This acquisition advances the Company's position within the North American water and wastewater treatment market within the Engineered Systems segment. The following table summarizes the fair values of the assets acquired and liabilities assumed at the date of closing. (in thousands) Current assets (including accounts receivable of $ 2,328 ) $ 8,902 Property and equipment 341 Right-of-use assets from operating leases 1,602 Intangible - finite life 11,610 Goodwill 11,017 Other assets 16 Total assets acquired 33,488 Current liabilities assumed ( 6,853 ) Other liabilities assumed ( 404 ) Net assets acquired $ 26,231 The Company acquired technology, customer lists and tradename intangible assets valued at $ 1.4 million, $ 8.7 million and $ 1.5 million, respectively. These assets were determined to have useful lives of 7 , 10 and 10 years, respectively. During the year ended December 31, 2023, Kemco accounted for $ 13.1 million in revenue and $ 2.0 million of net income included in the Company’s results. Transcend Solutions On March 31, 2023, the Company acquired 100 % of the equity interests of Transcend Solutions, LLC ("Transcend") for $ 22.4 million, including $ 20.0 million in cash, which was financed with a draw on the Company’s revolving credit facility, $ 2.4 million of deferred cash consideration, consisting of $ 0.4 million of holdback paid within one year and $ 2.0 million of notes payable due in equal installments over two years, of which $ 1.0 million was paid in the year ended December 31, 2024 . Transcend is a process filtration solution design and manufacturing company with applications in hydrocarbon and chemical processing. This acquisition improves the Company's short-cycle and long-cycle mix and expands the Company's reach into midstream oil and gas, liquified natural gas, hydrocarbon processing, and chemical processing applications within the Engineered Systems segment. The following table summarizes the fair values of the assets acquired and liabilities assumed at the date of closing. (in thousands) Current assets (including cash of $ 52 and accounts receivable of $ 1,493 ) $ 2,614 Property and equipment 1,153 Intangible - finite life 8,930 Goodwill 10,839 Other assets 231 Total assets acquired 23,767 Current liabilities assumed ( 1,203 ) Deferred tax liability ( 168 ) Net assets acquired $ 22,396 The Company acquired technology, customer lists and tradename intangible assets valued at $ 0.6 million, $ 7.6 million and $ 0.7 million, respectively. These assets were determined to have useful lives of 7 , 10 and 10 years, respectively. During the year ended December 31, 2023, Transcend accounted for $ 10.3 million in revenue and $ 1.7 million of net income included in the Company’s results. Malvar Engineering Limited On January 10, 2023, the Company acquired 100 % of the equity interests of Malvar Engineering Limited, including its subsidiaries Arkanum Management Limited and Wakefield Acoustics Limited (collectively, "Wakefield"), for $ 4.1 million in cash, which was financed with a draw on the Company’s revolving credit facility, and $ 0.4 million of deferred cash consideration . As additional consideration, the former owners were entitled to earn-out payments based upon specified financial results through July 31, 2023. Based on projections at the acquisition date, the Company estimated the fair value of the earn-out to be $ 0.6 million. A payment of $ 0.6 million, representing the fully earned amount, was made in the fourth quarter of 2023. Wakefield is a producer of industrial engineered noise control solutions, including custom acoustical gen-set packages, ambient air baffles, acoustical louvres, and skid enclosures, primarily serving server farms for data centers, standby and emergency power generation, oil and gas, petrochemical, commercial construction, infrastructure, and general manufacturing industries. This acquisition advances the Company's position within the industrial silencing and noise attenuation market by adding a range of solutions and access to new geographic markets within the Engineered Systems segment. The following table summarizes the fair values of the assets acquired and liabilities assumed at the date of closing. (in thousands) Current assets (including accounts receivable of $ 2,467 ) $ 3,240 Property and equipment 635 Intangible - finite life 1,778 Goodwill 5,296 Total assets acquired 10,949 Current liabilities assumed ( 4,860 ) Deferred income tax liability ( 961 ) Net assets acquired $ 5,128 The Company acquired customer lists and tradename intangible assets valued at $ 1.5 million and $ 0.3 million, respectively. These assets were determined to have useful lives of 10 years. During the year ended December 31, 2023, Wakefield accounted for $ 13.8 million in revenue and $ 1.3 million of net income included in the Company’s results. During the year ended December 31, 2022, the Company acquired DS21 Co., Ltd. which accounted for $ 1.9 million in revenue and $ 0.5 million of net loss included in the Company’s results, Western Air Ducts Ltd. which accounted for $ 1.5 million in revenue and $ 0.3 million of net loss included in the Company’s results, Compass Water Solutions, Inc. which accounted for $ 3.7 million in revenue and $ 0.1 million of net loss included in the Company’s results, and General Rubber LLC, through the EFM JV, which accounted for $ 11.7 million in revenue and $ 2.1 million of net income included in the Company’s results. The Company has finalized the valuation of assets acquired and liabilities assumed related to the 2023 acquisitions. The purchase accounting related to the 2024 acquisitions is subject to final adjustment, primarily for the valuation of intangible assets pending final valuation results for such assets and tax balances for the further assessment of the acquiree’s tax positions. These preliminary estimates and assumptions could change significantly during the purchase price measurement period as the Company finalizes the valuation of assets acquired and liabilities assumed. These changes could result in material variances in the Company's future financial results, including variances in the estimated purchase price, fair values recorded and expenses associated with these items. Goodwill recognized represents value the Company expects to be created by combining the various operations of the acquired businesses with the Company’s operations, including the expansion into markets within existing business segments, access to new customers and potential cost savings and synergies. Goodwill related to these acquisitions is not deductible for tax purposes. Acquisition and integration expenses on the Consolidated Statements of Income are related to acquisition activities, which include retention, legal, accounting, banking, and other expenses. The following unaudited pro forma financial information represents the Company’s results of operations as if these acquisitions had occurred at the beginning of the fiscal year prior to the acquisition : December 31, (table only in thousands, except per share data) 2024 2023 2022 Net sales $ 636,191 $ 662,569 $ 478,802 Net income attributable to CECO Environmental Corp. $ 16,332 $ 17,013 $ 20,179 Earnings per share: Basic $ 0.47 $ 0.49 $ 0.58 Diluted $ 0.45 $ 0.48 $ 0.58 The pro forma results have been prepared for informational purposes only and include adjustments to amortize acquired intangible assets with finite life, reflect additional interest expense on debt used to fund the acquisition, and to record the income tax consequences of the pro forma adjustments. These pro forma results do not purport to be indicative of the results of operations that would have occurred had the purchase been made as of the beginning of the periods presented or of the results of operations that may occur in the future.

Business Segment Information

Business Segment Information	12 Months Ended
	Dec. 31, 2024
Segment Reporting [Abstract]
Business Segment Information	15. Business Segment Information The Company’s operations are organized and reviewed by management along its product lines or end markets that the segment serves and are presented in two reportable segments. The results of the segments, specifically income from operations as adjusted for intercompany profits, are reviewed quarterly by the chief operating decision maker, which is the Company's Chief Executive Officer, for the purposes of allocating resources, including personnel, capital, and financial resources, and assessing performance, including the monitoring of budget versus actual results. Asset information by segment is not reported internally or otherwise regularly reviewed by the CODM. The accounting policies of the segments are the same as those described in the summary of significant accounting policies in Note 1 to the Consolidated Financial Statements. The Company’s reportable segments are organized as groups of similar products and services, as described as follows: Engineered Systems segment: The Company's Engineered Systems segment serves the power generation, hydrocarbon processing, water/wastewater treatment, oily water separation and treatment, marine and naval vessels, and midstream oil and gas sectors. The Company seeks to address the global demand for environmental and equipment protection solutions with its highly engineered platforms including emissions management, fluid bed cyclones, thermal acoustics, separation and filtration, and dampers and expansion joints. Industrial Process Solutions segment: The Company's Industrial Process Solutions segment serves the broad industrial sector with solutions for air pollution and contamination control, fluid handling, and process filtration in applications such as aluminum beverage can production, automobile production, food and beverage processing, semiconductor fabrication, electronics production, steel and aluminum mill processing, wood manufacturing, desalination, and aquaculture markets. The Company assists customers in maintaining clean and safe operations for employees, reducing energy consumption, minimizing waste for customers, and meeting regulatory standards for toxic emissions, fumes, volatile organic compounds, and odor elimination through its platforms including duct fabrication and installation, industrial air, and fluid handling. The financial segment information is as follows for the year ended December 31, 2024: (table only in thousands) Engineered Systems Industrial Process Solutions Sales $ 399,032 $ 184,807 Income from operations 72,373 29,575 A reconciliation of total segment sales to total consolidated sales, as well as total segment income from operations to total consolidated income from operations and total consolidated net income is as follows for the year ended December 31, 2024: (table only in thousands) Engineered Systems Industrial Process Solutions Total Sales from external customers $ 384,025 $ 173,908 $ 557,933 Intra-segment sales 14,767 10,621 25,388 Inter-segment sales 240 278 518 Total segment sales 399,032 184,807 583,839 Reconciliation to sales Elimination of intra- and inter-segment sales 25,906 Total consolidated sales 557,933 Reconciliation to income before income taxes Direct cost of sales 254,381 110,835 365,216 Shop burden 8,367 11,837 20,204 Selling expense 21,999 11,993 33,992 Project engineering expense 13,821 7,850 21,671 General and administrative expense 19,085 9,939 29,024 Other segment items (1) 6,764 2,767 9,531 Segment profit 74,615 29,586 104,201 Stock-based compensation 7,514 Other corporate expenses (2) 59,033 Elimination of intersegment profit 2,251 Total consolidated income from operations 35,403 Interest expense 13,020 Other profit or loss (3) 4,692 Total consolidated income before income taxes 17,691 (1) Includes amortization expenses, acquisition and integration expenses, and asbestos litigation expenses. Includes corporate compensation, professional services, information technology, and other general, administrative corporate expenses. Includes foreign exchange (gain) loss and pension expense. Other segment information is as follows for the year ended December 31, 2024: (table only in thousands) Engineered Systems Industrial Process Solutions Corporate and Other (1) Total Property and equipment additions $ 3,926 $ 2,863 $ 10,579 $ 17,368 Depreciation and amortization (4) 7,331 4,678 2,514 14,523 (4) The amounts of depreciation and amortization disclosed by reportable segment are included within the other segment expense captions, such as shop burden or general and administrative expense. The financial segment information is as follows for the year ended December 31, 2023: (table only in thousands) Engineered Systems Industrial Process Solutions Sales $ 412,929 $ 183,011 Income from operations 59,846 21,630 A reconciliation of total segment sales to total consolidated sales, as well as total segment income from operations to total consolidated income from operations and total consolidated net income is as follows for the year ended December 31, 2023: (table only in thousands) Engineered Systems Industrial Process Solutions Total Sales from external customers $ 380,108 $ 164,737 $ 544,845 Intra-segment sales 31,402 17,489 48,891 Inter-segment sales 1,419 785 2,204 Total segment sales 412,929 183,011 595,940 Reconciliation to sales Elimination of intra- and inter-segment sales 51,095 Total consolidated sales 544,845 Reconciliation to income before income taxes Direct cost of sales 287,016 117,747 404,763 Shop burden 7,563 11,614 19,177 Selling expense 17,933 11,832 29,765 Project engineering expense 11,359 5,588 16,947 General and administrative expense 23,370 10,003 33,373 Other segment items (1) 5,777 3,677 9,454 Segment profit 59,911 22,550 82,461 Stock-based compensation 4,533 Other corporate expenses (2) 42,374 Elimination of intersegment profit 985 Total consolidated income from operations 34,569 Interest expense 13,416 Other profit or loss (3) ( 372 ) Total consolidated income before income taxes 21,525 (1) Includes amortization expenses, acquisition and integration expenses, and asbestos litigation expenses. Includes corporate compensation, professional services, information technology, and other general, administrative corporate expenses. Includes foreign exchange (gain) loss and pension expense. Other segment information is as follows for the year ended December 31, 2023: (table only in thousands) Engineered Systems Industrial Process Solutions Corporate and Other (1) Total Property and equipment additions $ 2,070 $ 2,827 $ 3,487 $ 8,384 Depreciation and amortization (4) 5,820 4,352 2,335 12,507 (4) The amounts of depreciation and amortization disclosed by reportable segment are included within the other segment expense captions, such as shop burden or general and administrative expense. The financial segment information is as follows for the year ended December 31, 2022: (table only in thousands) Engineered Systems Industrial Process Solutions Sales $ 278,354 $ 165,221 Income from operations 36,200 22,705 A reconciliation of total segment sales to total consolidated sales, as well as total segment income from operations to total consolidated income from operations and total consolidated net income is as follows for the year ended December 31, 2022: (table only in thousands) Engineered Systems Industrial Process Solutions Total Sales from external customers $ 263,224 $ 159,404 $ 422,627 Intra-segment sales 14,088 5,536 19,624 Inter-segment sales 1,042 281 1,323 Total segment sales 278,354 165,221 443,574 Reconciliation to sales Elimination of intra- and inter-segment sales 20,947 Total consolidated sales 422,627 Reconciliation to income before income taxes Direct cost of sales 200,020 106,037 306,057 Shop burden 2,321 9,487 11,808 Selling expense 12,395 11,350 23,745 Project engineering expense 7,743 4,767 12,510 General and administrative expense 14,426 9,251 23,677 Other segment items (1) 6,396 2,991 9,387 Segment profit 35,053 21,338 56,390 Stock-based compensation 3,895 Other corporate expenses (2) 32,849 Elimination of intersegment profit ( 2,515 ) Total consolidated income from operations 22,161 Interest expense 5,419 Other profit or loss (3) ( 6,947 ) Total consolidated income before income taxes 23,689 (1) Includes amortization expenses, acquisition and integration expenses, and asbestos litigation expenses. Includes corporate compensation, professional services, information technology, and other general, administrative corporate expenses. Includes foreign exchange (gain) loss and pension expense. Other segment information is as follows for the year ended December 31, 2022: (table only in thousands) Engineered Systems Industrial Process Solutions Corporate and Other (1) Total Property and equipment additions $ 203 $ 879 $ 2,294 $ 3,376 Depreciation and amortization (4) 4,672 4,388 1,554 10,614 (4) The amounts of depreciation and amortization disclosed by reportable segment are included within the other segment expense captions, such as shop burden or general and administrative expense. No single customer represented greater than 10 % of consolidated net sales or accounts receivable for 2024, 2023, or 2022. Geographic Information Net sales by geographic area are as follows: December 31, (table only in thousands) 2024 2023 2022 United States $ 376,281 $ 364,483 $ 272,702 United Kingdom 62,961 51,066 39,635 Netherlands 52,629 51,149 43,184 China 30,622 24,660 22,816 Other 35,440 53,487 44,290 Total net sales $ 557,933 $ 544,845 $ 422,627 The geographical area data for net sales is based upon the country location of the Company's business unit generating such sales. Long-lived assets by geographic area are as follows: December 31, (table only in thousands) 2024 2023 United States $ 332,162 $ 270,613 United Kingdom 27,003 26,785 China 36,315 2,017 Other 33,248 19,439 Total long-lived assets $ 428,728 $ 318,854 The geographical area data for long-lived assets is based upon physical location of such assets.

Subsequent events

Subsequent events	12 Months Ended
	Dec. 31, 2024
Subsequent Events [Abstract]
Subsequent Events	16. Subsequent Events On January 3, 2025, the Company completed its acquisition of Profire Energy, Inc. ("Profire"), a technology company and provider of intelligent control solutions that enhance the efficiency, safety, and reliability of industrial combustion appliances while mitigating potential environmental impacts related to the operation of these devices with its primary operations in Lindon, Utah and Acheson, Alberta. The aggregate consideration paid by the Company to acquire the shares of Profire was approximately $ 122.7 million, which the Company financed through a combination of cash on hand and borrowings under its existing credit facility. The impact of this acquisition is not included in the Company's results for the year ended December 31, 2024. The initial accounting for the acquisition was not complete at the time the financial statements were issued due to the timing of the acquisition and the filing of this Annual Report on Form 10-K. As a result, complete disclosures required under ASC 805, Business Combinations, cannot be made at this time. On January 16, 2025, the Company announced its intention to divest its Fluid Handling business. The Company entered into a non-binding Letter of Intent in the first quarter of 2025 in regards to this potential divestiture.

Nature of Business and Summar_2

Nature of Business and Summary of Significant Accounting Policies (Policies)	12 Months Ended
	Dec. 31, 2024
Accounting Policies [Abstract]
Nature of business	Nature of business — CECO Environmental Corp. and its consolidated subsidiaries (“CECO,” the “Company,” “we,” “us,” or “our”) is a leading environmentally focused, diversified industrial company, serving the broad landscape of industrial air, industrial water and energy transition markets globally providing innovative technology and application expertise. CECO helps companies grow their business with safe, clean, and more efficient solutions that help protect people, the environment and industrial equipment. CECO solutions improve air and water quality, optimize emissions management, and increase the energy and process efficiency for highly engineered applications in power generation, midstream and downstream hydrocarbon processing and transport, chemical processing, electric vehicle production, polysilicon fabrication, semiconductor and electronics production, battery production and recycling, specialty metals, aluminum and steel production, beverage can manufacturing, and industrial and produced water and wastewater treatment, and a wide range of other industrial end markets .
Principles of consolidation	Principles of consolidation —The consolidated financial statements include the Company and its controlled subsidiaries. All intercompany balances and transactions have been eliminated. Unless indicated, all balances within tables are in thousands with the exception of per share amounts.
Use of estimates	Use of estimates —The preparation of financial statements in conformity with accounting principles generally accepted in the United States of America (“GAAP”) requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates. Significant estimates and assumptions reflected in the financial statements relate to and include, but are not limited to, the estimates of contracts' progress to completion used in the recognition of revenue over time, inventory valuation, the estimated useful lives of fixed assets and intangible assets, fair values of long-lived assets and goodwill, and deferred tax assets.
Cash equivalents	Cash equivalents —The Company considers all highly liquid investments with original maturities of three months or less to be cash equivalents. At December 31, 2024 and 2023, Restricted Cash is cash in support of letters of credit issued by various foreign subsidiaries of the Company. The Company occasionally enters into letters of credit with durations in excess of one year. The following table provides a reconciliation of cash, cash equivalents and restricted cash reported within the Consolidated Statements of Cash Flows. December 31, 2024 2023 Cash and cash equivalents $ 37,832 $ 54,779 Restricted cash 369 669 Total cash, cash equivalents and restricted cash $ 38,201 $ 55,448
Accounts Receivable	Accounts receivable —Receivables are generally uncollateralized customer obligations due under normal terms requiring payment generally within 30 days from the invoice date unless otherwise determined by specific contract terms, generally due to retainage provisions. The Company’s estimate of the allowance for credit losses for trade receivables is primarily determined based upon the length of time that the receivables are past due and management estimates of probable losses based upon an analysis of prior collection experience, specific account risks and economic conditions. Accounts are deemed uncollectible based on past account experience and the current financial condition of the account.
Inventories	Inventories —The Company’s inventory is valued at the lower of cost or net realizable value, using the first-in, first-out inventory costing method. Inventory quantities are regularly reviewed and provisions for excess or obsolete inventory are recorded based on the Company’s forecast of future demand and market conditions. Significant unanticipated changes to the Company’s forecasts could require a change in the provision for excess or obsolete inventory.
Property, plant and equipment	Property, plant and equipment —Property, plant and equipment are carried at the cost of acquisition or construction and depreciated over the estimated useful lives of the assets. Depreciation and amortization are provided using the straight-line method in amounts sufficient to amortize the cost of the assets over their estimated useful lives (buildings and improvements—generally five to 40 years ; machinery and equipment—generally two to 15 years ). Upon sale or disposal of property, plant and equipment, the applicable amounts of asset cost and accumulated depreciation are removed from the accounts, and the net amount, less any proceeds from sale, is recorded in income.
Intangible assets	Intangible assets — Indefinite life intangible assets are comprised of tradenames, while finite life intangible assets are comprised of technology, customer lists, and tradenames. Finite life intangible assets are amortized on a straight line or accelerated basis over their estimated useful lives of seven to 10 years for technology, five to 20 years for customer lists, and 10 years for tradenames.
Long-lived assets	Long-lived assets —Property, plant and equipment and finite life intangible assets are reviewed whenever events or changes in circumstances occur that indicate possible impairment. If events or changes in circumstances occur that indicate possible impairment, the impairment review is based on an undiscounted cash flow analysis at the lowest level at which cash flows of the long-lived assets are largely independent of other groups of assets and liabilities. This analysis requires management judgment with respect to changes in technology, the continued success of product lines, and future volume, revenue and expense growth rates. The Company conducts annual reviews for idle and underutilized equipment, and review business plans for possible impairment. Impairment occurs when the carrying value of the assets exceeds the future undiscounted cash flows expected to be earned by the use of the asset or asset group. When impairment is indicated, the estimated future cash flows are then discounted to determine the estimated fair value of the asset or asset group and an impairment charge is recorded for the difference between the carrying value and the estimated fair value. Additionally, the Company evaluates the remaining useful life each reporting period to determine whether events and circumstances warrant a revision to the remaining period of depreciation or amortization. If the estimate of a long-lived asset’s remaining useful life is changed, the remaining carrying amount of the asset is amortized prospectively over that revised remaining useful life. The Company completes an impairment assessment annually in the fourth quarter, or more often as circumstances require, of its indefinite life intangible assets. As a part of its annual assessment, typically, the Company first qualitatively assesses whether current events or changes in circumstances lead to a determination that it is more likely than not, as defined as a likelihood of more than 50 percent, that the fair value of an asset is less than its carrying amount. If there is a qualitative determination that the fair value of a particular asset is more likely than not greater than its carrying value, the Company does not need to proceed to the quantitative estimated fair value test for that asset. If this qualitative assessment indicates a more likely than not potential that the asset may be impaired, the estimated fair value is determined by the relief from royalty method. If the estimated fair value of an asset is less than its carrying value, an impairment charge is recorded for the amount by which the carrying value of the asset exceeds its estimated fair value.
Goodwill	Goodwill —The Company completes an impairment assessment annually in the fourth quarter or more often as circumstances require, of its goodwill on a reporting unit level, at or below the operating segment level. As a part of its annual assessment, the Company first qualitatively assesses whether current events or changes in circumstances lead to a determination that it is more likely than not, defined as a likelihood of more than 50 percent, that the fair value of a reporting unit is less than its carrying amount. If there is a qualitative determination that the fair value of a particular reporting unit is more likely than not greater than its carrying value, the Company does not need to quantitatively test for goodwill impairment for that reporting unit. If this qualitative assessment indicates a more likely than not potential that the asset may be impaired, the estimated fair value is determined using a weighting of the income method and the market method. If the estimated fair value of a reporting unit is less than its carrying value, an impairment charge is recorded.
Business Combinations	Business Combinations —The Company allocates the fair value of purchase consideration to the tangible assets acquired, liabilities assumed, and intangible assets acquired based upon their estimated fair values as of the acquisition date. The Company determines the fair value of intangible assets using the income method, which is based upon a discounted future cash flow. The discounted future cash flow utilizes unobservable inputs, or Level 3 assumptions. Specifically, the discounted future cash flow uses the significant assumptions of projected revenue, projected operational profit, terminal growth rates, and the cost of capital. Projected revenue and operational profit, and terminal growth rates have been determined to be significant assumptions because they are three primary drivers of the projected cash flows in the discounted future cash flow approach. Cost of capital has also been determined to be a significant assumption as it is the discount rate used to calculate the current fair value of those projected cash flows. The excess of the fair value of purchase consideration over the fair values of these identifiable assets and liabilities is recorded as goodwill based on the expected benefits from the business combination. Allocation of purchase consideration to identifiable assets and liabilities affects the amortization expense, as acquired finite-lived intangible assets are amortized over the useful life, whereas any indefinite-lived intangible assets, including goodwill, are not amortized. During the measurement period, which is not to exceed one year from the date of acquisition, the Company may record adjustments to the assets acquired and liabilities assumed, with the corresponding offset to goodwill. Subsequent to the measurement period, any necessary adjustments are recorded to earnings. Acquisition-related expenses are recognized separately from business combinations, and expensed as incurred.
Deferred charges	Deferred financing costs —Deferred financing costs are amortized to interest expense over the life of the related loan. In fiscal 2021, the Company entered into Amendment No.2 to the Second Amended and Restated Credit Agreement. The Credit Facility amended the Company’s existing Amendment No. 1 to Second Amended and Restated Agreement . In connection with the Credit Facility, the Company incurred $ 0.8 million in customary closing fees in 2021 that were capitalized and classified as a debt discount (see Note 8 for further details on the Credit Facility). In fiscal 2023, the Company entered into Amendment No.4 to the to the Second Amended and Restated Credit Agreement . In connection with this amendment, the Company incurred $ 0.4 million in customary closing fees in the fourth quarter of 2023 that were capitalized and classified as a debt discount (see Note 8). In fiscal 2024, the Company entered into the Third Amended and Restated Credit Agreement. In connection with this agreement, the Company incurred $ 1.8 million in customary closing fees that were capitalized and classified as a debt discount (see Note 8). In addition, $ 0.1 million of loss on extinguishments of debt was recorded within Interest expense on the Consolidated Statement of Income related to the previously capitalized amounts relating to the portion of the Third Amended and Restated Credit Agreement that was concluded to be debt extinguishment. Amortization expense was $ 0.5 million, $ 0.4 million and $ 0.4 m illion for 2024, 2023 and 2022, respectively. As of December 31, 2024, and 2023, remaining capitalized deferred financing costs of $ 2.7 million and $ 1.3 million, respectively, are included as a discount to debt in the accompanying Consolidated Balance Sheets.
Revenue recognition	Revenue recognition —A significant portion of the Company's revenue is derived from fixed-price contracts. The Company accounts for a contract after it has been approved by all parties to the arrangement, the rights of the parties are identified, payment terms are identified, the contract has commercial substance and collectability of consideration is probable. For each contract, the Company assesses the goods and services promised to a customer and identifies a performance obligation for each distinct promised good or service. The typical life of contracts is generally less than 12 months and each contract generally contains only one performance obligation, to provide goods or services to the customer. The Company determines the transaction price for each contract based on the consideration the Company expects to receive for the products or services being provided under the contract. The Company recognizes revenue as performance obligations are satisfied and the customer obtains control of the products and services. A significant amount of the Company's revenue is recognized over a period of time as the Company performs under the contract because control of the work in process transfers continuously to the customer. For performance obligations to deliver products with continuous transfer of control to the customer, revenue is recognized based on the extent of progress towards completion of the performance obligation. Progress is measured based on the ratio of costs incurred to date to the total estimated costs to complete the performance obligation. For these contracts, the cost-to-cost measure best depicts the continuous transfer of goods or services to the customer. Annual revenue recognized over a period of time is approximately 75% of total revenue for the years ended December 31, 2024, 2023, and 2022. For contracts where the duration is short, total contract revenue is insignificant, or control does not continuously transfer to the customer, revenues are recognized at the point in time control passes to the customer, which occurs generally upon shipment of product. Annual revenue recognized at a point in time is approximately 25% of total revenue for the years ended December 31, 2024, 2023, and 2022. Progress payments are generally made over the duration of the contract. Shipping and handling activities after control of the products has transferred to the customer are considered fulfillment activities. Sales taxes are recorded on a net basis. Contract Assets and Contract Liabilities — Contract assets consist of costs and earnings in excess of billings, costs incurred for contracts recognized at a point in time, and retainage. Costs and earnings in excess of billings represent the estimated value of unbilled work for contracts with performance obligations recognized over time and are separately classified as current assets in the Consolidated Balance Sheets. Costs incurred for contracts recognized at a point in time are classified within inventories as work-in-process. Retainage represents a portion of the contract billings that have been billed, but for which the contract allows the customer to retain a portion of the billed amount until final settlement. Retainage is not considered to be a significant financing component because the intent is to protect the customer. Retainage is classified within accounts receivable and deferred charges and other assets depending on when it is due. Almost all of the Company’s contract assets are classified as current assets in the Consolidated Balance Sheets. Billings in excess of costs and estimated earnings on uncompleted contracts are current liabilities, which relate to fixed-price contracts recognized over time, and represents payments in advance of performing the related contract work. Billings in excess of costs and estimated earnings on uncompleted contracts is not considered to be a significant financing component because it is generally used to meet working capital demands that can be higher in the early stages of a contract. Contract liabilities, classified in Accrued expenses in the Consolidated Balance Sheets, include advance payments received from customers for which revenue has not been recognized for contracts where revenue is recognized at a point in time. Contract liabilities are reduced when the associated revenue from the contract is recognized, which is generally within one year. As of the beginning of the prior year period, or January 1, 2023, costs and estimated earnings in excess of billings on uncompleted contracts and billings in excess of costs and estimated earnings on uncompleted contracts w ere $ 71.0 million and $ 32.7 million, respectively. The contract liabilities recorded in “Accrued expenses” on the Consolidated Balance Sheets were $ 4.5 million as of January 1, 2023. Approximately 95 % of the Company's contract liabilities as of December 31, 2023 were recognized as revenue in the year ended December 31, 2024. Approximately 95 % of the Company's contract liabilities as of December 31, 2022 were recognized as revenue in the year ended December 31, 2023. Approximately 75 % of the Company's contract liabilities as of December 31, 2021 were recognized as revenue in the year ended December 31, 2022. The revenue streams within the Company are consistent with those disclosed for the Company's reportable segments. See Note 15 to the Consolidated Financial Statements for additional information on product offerings and segments. Provisions for estimated losses on uncompleted contracts are made in the period in which such losses are determined. Changes to job performance, job conditions, and estimated profitability may result in revisions to contract revenue and costs and are recognized in the period in which the revisions are made. There was no provision for estimated losses on uncompleted contracts at December 31, 2024 and 2023 .
Cost of sales	Cost of sales —Cost of sales amounts include materials, subcontract costs, direct labor and associated benefits, inbound freight charges, purchasing and receiving, inspection, warehousing, and depreciation.
Claims	Claims —Change orders arise when the scope of the original project is modified for any of a variety of reasons. The Company will negotiate the extent of the modifications, its expected costs and recovery with the customer. Costs related to change orders are added to the expected total cost of the project. In cases where contract revenues are increased in excess of the expected costs of the change order, incremental profit also is recognized on the contract. Generally, in order for this recognition of incremental profit to occur, the customer approves in writing the scope and pricing of the change order. Change orders that are in dispute are effectively handled as claims. Claims are amounts in excess of the agreed contract price that the Company seeks to collect from customers or others for customer-caused delays, errors in specifications and designs, contract terminations, change orders in dispute or unapproved as to both scope and price. Costs attributable to claims are treated as contract costs as incurred. The Company recognizes certain significant claims for recovery of incurred costs when it is probable that the claim will result in additional contract revenue and when the amount of the claim can be reliably estimated. When the customer or other parties agree in writing to the amount of the claim to be recovered by the Company, the amount of the claim becomes contractual and is accounted for as an increase in the contract’s total estimated revenue and estimated cost. As actual costs are incurred and revenues are recognized over time, a corresponding percentage of the revised total estimated profit will therefore be recognized. Should it become probable that the claim will not result in additional contract revenue, the Company removes the related contract revenues from its previous estimate of total revenues, which effectively reduces the estimated profit margin on the job and negatively impacts profit for the period.
Pre-contract costs	Pre-contract costs —Pre-contract costs are not significant and are primarily internal costs. As most of the Company’s contracts are one year or less, the Company expenses all pre-contract costs as incurred regardless of whether or not the bids are successful. A majority of the Company's business is obtained through a bidding process and this activity is on-going with multiple bids in process at any one time. These costs consist primarily of engineering, sales and project manager wages, fringes and general corporate overhead.
Selling and administrative expenses	Selling and administrative expenses —Selling and administrative expenses on the Consolidated Statements of Income include sales and administrative wages and associated benefits, selling and office expenses, professional fees, bad debt expense and depreciation. Selling and administrative expenses are charged to expense as incurred. Selling and administrative expenses for the years ended December 31, 2024, 2023, and 2022 included $ 0.7 million, $ 0.6 million, and $ 0.5 million of advertising expenses, respectively.
Acquisition and integration expenses	Acquisition and integration expenses —Acquisition and integration expenses on the Consolidated Statements of Income are related to acquisition activities, which include, legal, accounting, and other expenses.
Amortization and earnout expenses	Amortization and earnout expenses —Amortization and earnout expenses on the Consolidated Statements of Income include amortization of intangible assets, and changes to earnout and contingent compensation amounts related to acquisitions.
Restructuring expenses	Restructuring expenses —Restructuring expenses on the Consolidated Statements of Income include expenses related to ongoing restructuring programs to reduce operating costs in the future. Within restructuring expenses are charges related to severance, facility exit, legal and property, plant and equipment impairment associated with exit or disposal activities.
Executive transition expenses	Executive transition expenses —Executive transition expenses on the Consolidated Statements of Income include expenses related to the severance for the Company’s former executives, as well as fees and expenses incurred in the search for, and hiring of, new executives.
Asbestos litigation expenses	Asbestos litigation expenses —Asbestos litigation expenses on the Consolidated Statements of Income include expenses related to the settlement of asbestos litigation involving the Company's subsidiaries.
Product Warranties	Product warranties —The Company’s warranty reserve is to cover the products sold. The warranty accrual is based on historical claims information. The warranty reserve is reviewed and adjusted as necessary on a quarterly basis and is presented within Note 7.
Research and Development	Research and development —Although not technically defined as research and development, a significant amount of time, effort and expense is devoted to custom engineering which qualifies products for specific customer applications, developing proprietary process technology and partnering with customers to develop new products.
Income taxes	Income taxes - Income taxes are determined using the asset and liability method of accounting for income taxes in accordance with Financial Accounting Standards Board (“FASB”), Accounting Standards Codification (“ASC”) Topic 740, “Income Taxes”. Income tax expense includes federal, state and foreign income taxes. Deferred income taxes are provided using the asset and liability method whereby deferred tax assets are recognized for deductible temporary differences and operating loss and tax credit carry-forwards and deferred tax liabilities are recognized for taxable temporary differences. Temporary differences are the differences between the reported amounts of assets and liabilities and their tax bases and are measured using enacted tax rates expected to apply to taxable income in the year in which those temporary differences are expected to be recovered or settled. Deferred tax assets and liabilities are adjusted for the effects of changes in tax laws and rates on the date of enactment. Tax credits and other incentives reduce income tax expense in the year the credits are claimed. Management must assess the need to accrue or disclose uncertain tax positions for proposed potential adjustments from various federal, state and foreign tax authorities who regularly audit the Company in the normal course of business. In making these assessments, management must often analyze complex tax laws of multiple jurisdictions, including many foreign jurisdictions. The accounting guidance prescribes a recognition threshold and measurement attribute for the financial statement recognition and measurement of a tax position taken or expected to be taken in a tax return. The Company records the related interest expense and penalties, if any, as tax expense in the tax provision. Management must assess the realizability of the Company’s deferred tax assets. In assessing the realizability of deferred tax assets, management considers whether it is more likely than not that some portion or all of the deferred tax assets will not be realized. The ultimate realization of deferred tax assets is dependent upon the generation of future taxable income during the periods in which those temporary differences become deductible. Management considers the scheduled reversal of deferred tax liabilities (including the impact of available carryback and carry forward periods), projected future taxable income, and tax-planning strategies in making this assessment. The amount of the deferred tax assets considered realizable, however, could be reduced in the near term if estimates of future taxable income during the carryforward period are reduced. The Company has made an accounting policy election to record the U.S. income tax effect of future global intangible low-taxed income (“GILTI”) inclusions in the period in which they arise, rather than establishing deferred taxes with respect to the expected future tax liabilities associated with future GILTI inclusion. Certain of the Company’s undistributed earnings of its foreign subsidiaries are not permanently reinvested. A liability has been recorded for the deferred taxes on such undistributed foreign earnings. The amount is attributable primarily to the foreign withholding taxes that would become payable should the Company repatriate cash held in its foreign operations.
Earnings per share	Earnings per share —The following table reconciles the numerators and denominators used to calculate basic and diluted earnings per share for 2024, 2023 and 2022. For the Year Ended December 31 2024 2023 2022 (table only in thousands) Numerator (for basic and diluted earnings per share) Net income attributable to CECO Environmental Corp. $ 12,957 $ 12,911 $ 17,417 Denominator Basic weighted-average shares outstanding 34,927 34,665 34,672 Common stock equivalents arising from stock options and restricted stock awards 1,455 669 333 Diluted weighted-average shares outstanding 36,382 35,334 35,005 Options and unvested restricted stock units are included in the computation of diluted earnings per share using the treasury stock method. For 2024, 2023 and 2022, outstanding options and unvested restricted stock units of zero , zero and 1.1 million, r espectively, were excluded from the computation of diluted earnings per share due to their having an anti-dilutive effect. Once a restricted stock award vests, it is included in the computation of weighted average shares outstanding for purposes of basic and diluted earnings per share.
Foreign Currency Translation	Foreign Currency Translation —The functional currencies of the Company’s foreign subsidiaries are their local currencies and their books and records are maintained in the local currency. The assets and liabilities of these foreign subsidiaries are translated into United States Dollars (“USD”) based on the end-of period exchange rates and the resultant translation adjustments are reported in Accumulated Other Comprehensive Loss in Shareholders’ Equity on the Consolidated Balance Sheets. Income and expenses are translated into USD at average exchange rates in effect during the period. Transactions denominated in other than the local currency are remeasured into the local currency and the resulting exchange gains or losses are included in “Other (expense) income, net” line of the Consolidated Statements of Income. Transaction (losses) gains were $( 4.3 ) million, $ 1.2 million, and $ 6.3 million i n 2024, 2023 and 2022 , respectively.
New Financial Accounting Pronouncements	Accounting Standards Adopted in 2024 In 2024, the Company adopted Accounting Standards Update ("ASU") 2023-07, Segment Reporting (Topic 280): Improvements to Reportable Segment Disclosures, which addresses segment disclosure requirements, primarily the disclosure of significant segment expenses. See Note 15 for the associated disclosures. Accounting Standards to be Adopted In December 2023, the FASB issued ASU 2023-09, Income Taxes (Topic 740): Improvements to Income Tax Disclosures, which addresses income tax disclosure requirements, primarily around the disclosure of the rate reconciliation and income taxes paid. The ASU is effective for fiscal years beginning after December 15, 2024. The Company is currently evaluating the impact the adoption of the standard will have on the Company’s consolidated financial statements. In November 2024, the FASB issued ASU 2024-03, Income Statement—Reporting Comprehensive Income—Expense Disaggregation Disclosures (Subtopic 220-40): Disaggregation of Income Statement Expenses, which addresses expense disclosure requirements, primarily the disaggregation of expense captions. The ASU is effective for fiscal years beginning after December 15, 2026, and interim periods beginning after December 15, 2027. The Company is currently evaluating the impact the adoption of the standard will have on the Company’s consolidated financial statements.

Nature of Business and Summar_3

Nature of Business and Summary of Significant Accounting Policies (Tables)	12 Months Ended
	Dec. 31, 2024
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, 2024 2023 Cash and cash equivalents $ 37,832 $ 54,779 Restricted cash 369 669 Total cash, cash equivalents and restricted cash $ 38,201 $ 55,448
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 2024, 2023 and 2022. For the Year Ended December 31 2024 2023 2022 (table only in thousands) Numerator (for basic and diluted earnings per share) Net income attributable to CECO Environmental Corp. $ 12,957 $ 12,911 $ 17,417 Denominator Basic weighted-average shares outstanding 34,927 34,665 34,672 Common stock equivalents arising from stock options and restricted stock awards 1,455 669 333 Diluted weighted-average shares outstanding 36,382 35,334 35,005

Accounts Receivable (Tables)

Accounts Receivable (Tables)	12 Months Ended
	Dec. 31, 2024
Receivables [Abstract]
Summary of Accounts Receivable	Accounts receivable consisted of the following: December 31, (table only in thousands) 2024 2023 Accounts receivable $ 168,435 $ 119,193 Allowance for credit losses ( 8,863 ) ( 6,460 ) Total accounts receivable $ 159,572 $ 112,733

Inventories (Tables)

Inventories (Tables)	12 Months Ended
	Dec. 31, 2024
Inventory Disclosure [Abstract]
Summary of Inventories	Inventories consisted of the following: December 31, (table only in thousands) 2024 2023 Raw materials $ 27,466 $ 25,819 Work in process 14,532 9,710 Finished goods 4,342 2,368 Obsolescence allowance ( 3,716 ) ( 3,808 ) Total inventories $ 42,624 $ 34,089

Property, Plant and Equipment (

Property, Plant and Equipment (Tables)	12 Months Ended
	Dec. 31, 2024
Property, Plant and Equipment [Abstract]
Summary of Property, Plant and Equipment	Property, plant and equipment consisted of the following: December 31, (table only in thousands) 2024 2023 Land, building and improvements $ 17,788 $ 12,284 Machinery and equipment and other 57,197 33,364 Property, plant and equipment, gross 74,985 45,648 Less accumulated depreciation ( 41,175 ) ( 19,411 ) Property, plant and equipment, net $ 33,810 $ 26,237

Goodwill and Intangible Assets

Goodwill and Intangible Assets (Tables)	12 Months Ended
	Dec. 31, 2024
Goodwill and Intangible Assets Disclosure [Abstract]
Goodwill / Tradename	(table only in thousands) Engineered Systems Industrial Process Solutions egment Totals Balance of goodwill at December 31, 2022 $ 114,746 $ 68,451 $ 183,197 Acquisitions 27,152 — 27,152 Foreign currency translation 331 646 977 Balance of goodwill at December 31, 2023 142,229 69,097 211,326 Acquisitions 110 59,005 59,115 Foreign currency translation ( 596 ) ( 98 ) ( 694 ) Balance of goodwill at December 31, 2024 $ 141,743 $ 128,004 $ 269,747 The Company’s indefinite lived intangible assets as of December 31, 2024 and 2023 consisted of the following: Tradenames (table only in thousands) 2024 2023 Balance beginning of year $ 9,570 $ 9,508 Foreign currency adjustments ( 104 ) 62 Balance end of year $ 9,466 $ 9,570
Intangible Assets - Finite Life	The Company’s finite lived intangible assets consisted of the following: December 31, 2024 2023 (table only in thousands) Cost Accum. Cost Accum. Technology $ 20,614 $ 14,769 $ 16,517 $ 14,061 Customer lists 127,354 70,045 103,471 63,420 Tradenames 18,530 6,392 14,094 5,001 Foreign currency adjustments ( 2,770 ) ( 1,528 ) ( 1,083 ) 56 Total finite life intangible assets $ 163,728 $ 89,678 $ 132,999 $ 82,538

Accrued Expenses (Tables)

Accrued Expenses (Tables)	12 Months Ended
	Dec. 31, 2024
Payables and Accruals [Abstract]
Summary of Accrued Expenses	Accrued expenses consisted of the following: December 31, (table only in thousands) 2024 2023 Compensation and related benefits $ 12,274 $ 11,278 Accrued warranty 4,558 5,105 Contract liability 9,746 7,875 Short-term operating lease liability 4,262 4,278 Other 16,688 15,765 Total accrued expenses $ 47,528 $ 44,301
Summary of Activity of Current Portion of Earnout Liability	The activity in the Company’s earnout liability consisted of the following : December 31, (table only in thousands) 2024 2023 Earnout accrued at beginning of year $ 2,200 $ 1,200 Fair value of earnout at acquisition date 6,332 2,800 Fair value adjustment 134 296 Payments and other ( 2,831 ) ( 2,096 ) Earnout accrued at end of year $ 5,835 $ 2,200 Current portion, recorded within Accrued expenses 60 1,115 Non-current portion, recorded within Other liabilities 5,775 1,085

Senior Debt (Tables)

Senior Debt (Tables)	12 Months Ended
	Dec. 31, 2024
Debt Disclosure [Abstract]
Summary of Debt	Debt consisted of the following: December 31, (table only in thousands) 2024 2023 Outstanding borrowings under Credit Facility (defined below) – Term loan $ — $ 112,424 – Revolving Credit Loan 214,200 17,300 Total outstanding borrowings under Credit Facility 214,200 129,724 Outstanding borrowings under the joint venture term debt 7,297 8,855 Unamortized debt discount ( 2,617 ) ( 1,296 ) Total outstanding borrowings 218,880 137,283 Less: current portion ( 1,650 ) ( 10,488 ) Total debt, less current portion $ 217,230 $ 126,795

Shareholders' Equity (Tables)

Shareholders' Equity (Tables)	12 Months Ended
	Dec. 31, 2024
Equity [Abstract]
Summary of Stock Option	The fair value of stock options is recorded as compensation expense on a straight-line basis over the vesting periods (which approximates the requisite service period) of the options and forfeitures are accounted for when they occur. Information related to all stock options under the 2021 Plan, 2017 Plan and 2007 Plan, and the 2020 Inducement Awards for 2024, 2023 and 2022 is shown in the tables below: (Shares in thousands) Shares Weighted Weighted Aggregate Outstanding at December 31, 2023 1,247 $ 11.09 3.4 years Grants 25 21.32 Forfeitures ( 2 ) 13.08 Exercised ( 28 ) 12.09 Outstanding and expected to vest at December 31, 2024 1,242 11.35 2.6 years $ 23,902 Exercisable at December 31, 2024 1,216 11.15 2.5 years $ 23,676 (Shares in thousands) Shares Weighted Weighted Aggregate Outstanding at December 31, 2022 1,440 $ 11.30 4.0 years Forfeitures ( 92 ) 13.43 Exercised ( 101 ) 11.93 Outstanding and expected to vest at December 31, 2023 1,247 11.09 3.4 years $ 11,452 Exercisable at December 31, 2023 942 11.10 3.4 years $ 8,652 (Shares in thousands) Shares Weighted Weighted Aggregate Outstanding at December 31, 2021 1,514 $ 11.19 4.9 years Forfeitures ( 32 ) 10.55 Exercised ( 42 ) 8.15 Outstanding and expected to vest at December 31, 2022 1,440 11.30 4.0 years $ 1,766 Exercisable at December 31, 2022 833 11.47 3.6 years $ 923
Summary of Restricted Stock Awards	Information related to restricted stock awards under the 2021 Plan, 2017 Plan, 2007 Plan, and the 2020 Inducement Awards for 2024, 2023 and 2022 is shown in the table below. The fair value of restricted stock awards is based on the price of the stock in the open market on the date of the grant, and the fair value of performance-based restricted stock units is determined by using the Monte Carlo valuation model. The fair value of the restricted stock awards is recorded as compensation expense on a straight-line basis over the vesting periods of the awards and forfeitures are accounted for when they occur. (Shares in thousands) Shares Weighted Nonvested at December 31, 2021 1,033 $ 7.17 Granted 755 5.74 Vested ( 355 ) 6.80 Forfeited ( 255 ) 6.41 Nonvested at December 31, 2022 1,178 6.53 Granted 734 16.12 Vested ( 417 ) 6.56 Forfeited ( 174 ) 7.19 Nonvested at December 31, 2023 1,321 11.77 Granted 356 22.03 Vested ( 409 ) 9.19 Forfeited ( 74 ) 14.29 Nonvested at December 31, 2024 1,194 14.98

Pension and Employee Benefit _2

Pension and Employee Benefit Plans (Tables)	12 Months Ended
	Dec. 31, 2024
Retirement Benefits [Abstract]
Schedule of Changes in Projected Benefit Obligations	The following tables set forth the plan changes in benefit obligations, plan assets and funded status on the measurement dates: December 31, (table only in thousands) 2024 2023 2022 Change in projected benefit obligation: Projected benefit obligation at beginning of year $ 26,760 $ 27,350 $ 35,035 Interest cost 1,215 1,274 877 Actuarial (gain) loss ( 1,237 ) 183 ( 6,540 ) Benefits paid ( 2,073 ) ( 2,047 ) ( 2,022 ) Projected benefit obligation at end of year 24,665 26,760 27,350 Change in plan assets: Fair value of plan assets at beginning of year 22,646 21,821 29,474 Actual return on plan assets 3,236 2,872 ( 5,631 ) Employer contributions 1,335 — — Benefits paid ( 2,073 ) ( 2,047 ) ( 2,022 ) Fair value of plan assets at end of year 25,144 22,646 21,821 Funded status at end of year $ 479 $ ( 4,114 ) $ ( 5,529 ) Weighted-average assumptions used to determine benefit obligations for the year ended December 31: Discount rate 5.35 % 4.70 % 4.90 %
Schedule of Net Periodic Benefit Cost for Pension Benefits	The details of net periodic benefit cost for pension benefits included in the accompanying Consolidated Statements of Income are as follows: December 31, (table only in thousands) 2024 2023 2022 Interest cost $ 1,215 $ 1,274 $ 877 Expected return on plan assets ( 1,223 ) ( 1,142 ) ( 1,560 ) Amortization of net loss 226 297 263 Net periodic benefit income (expense) $ 218 $ 429 $ ( 420 )
Schedule of Other Changes in Plan Assets and Benefit Obligations Recognized in Other Comprehensive Income	Other changes in plan assets and benefit obligations recognized in other comprehensive income are as follows: December 31, (table only in thousands) 2024 2023 2022 Net (gain) loss $ ( 3,249 ) $ ( 1,548 ) $ 651 Amortization of net actuarial loss ( 226 ) ( 297 ) ( 263 ) Total recognized in other comprehensive income (loss) $ ( 3,475 ) $ ( 1,845 ) $ 388 Total recognized in net periodic benefit cost and other comprehensive income (loss) $ ( 3,257 ) $ ( 1,416 ) $ ( 32 )
Weighted-average Assumptions Used to Determine Net Periodic Benefit Cost	Weighted-average assumptions used to determine net periodic benefit costs are as follows: December 31, 2024 2023 2022 Discount Rate 4.70 % 4.90 % 2.55 % Expected return on assets 5.50 % 5.50 % 5.50 %
Details of Defined Benefit Pension Plan Asset Allocation by Asset Category	The Company's defined benefit pension plan asset allocation by asset category is as follows: Target Percentage of 2024 2024 2023 Asset Category: Cash and cash equivalents 0 % 1 % 1 % Equity securities 70 % 74 % 76 % Debt securities 30 % 25 % 23 % Total 100 % 100 % 100 %
Disclosure of Fair Value Measurements of Pension Plan Assets	The levels assigned to the defined benefit plan assets as of December 31, 2024, are summarized in the tables below: (table only in thousands) Level 1 Level 2 Level 3 Total Pension assets, at fair value: Cash and cash equivalents $ 198 $ — $ — $ 198 Equity securities 18,622 — — 18,622 Debt securities 6,324 — — 6,324 Total assets $ 25,144 $ — $ — $ 25,144 The levels assigned to the defined benefit plan assets as of December 31, 2023, are summarized in the tables below: (table only in thousands) Level 1 Level 2 Level 3 Total Pension assets, at fair value: Cash and cash equivalents $ 311 $ — $ — $ 311 Equity securities 17,233 — — 17,233 Debt securities 5,102 — — 5,102 Total assets $ 22,646 $ — $ — $ 22,646
Summary of Pension Fund General Information	The Company’s participation in these plans for the year ended December 31, 2024, is outlined in the table below. The “EIN/Pension Plan Number” column provides the Employer Identification Number and the three-digit plan number, if applicable. Unless otherwise noted, the most recent Pension Protection Act zone status available in 2024 is for the plan’s year-end at December 31, 2023. The zone status is based on information that the Company received from the plan and is certified by the plan’s actuary. Among other factors, plans in the red zone are generally less than 65% funded, plans in the yellow zone are less than 80% funded, and plans in the green zone are at least 80% funded. The “FIP/RP Status Pending/Implemented” column indicates plans for which a financial improvement plan (FIP) or a rehabilitation plan (RP) is either pending or has been implemented. The last column lists the expiration date(s) of the collective-bargaining agreement(s) to which the plans are subject. Pension Fund EIN/Pension Pension FIF/RP Status Surcharge Expiration Sheet Metal Workers’ National Pension Fund 52-6112463 /001 Green FIF: Yes - Implemented Implemented No Various Sheet Metal Workers Local 224 Pension Plan 31-6171353 /001 Yellow FIF: Yes - Implemented No n/a Sheet Metal Workers Local No. 177 Pension Fund 62-6093256 /001 Green Is not subject No April 30, 2026

Leases (Tables)

Leases (Tables)	12 Months Ended
	Dec. 31, 2024
Leases [Abstract]
Schedule of Components of Lease Expense	The components of lease expense were as follows: December 31, (table only in thousands) 2024 2023 2022 Operating lease cost (1) $ 6,146 $ 4,643 $ 3,558 Finance lease cost: Amortization of right-of-use assets 309 232 309 Interest on lease liability 232 289 289 Total finance lease cost 541 521 598 Total lease cost $ 6,687 $ 5,164 $ 4,156 (1) Includes variable lease costs which are immaterial.
Summary of Supplemental Cash Flow Information Related to Leases	Supplemental cash flow information related to leases was as follows: December 31, (table only in thousands) 2024 2023 2022 Cash paid for amounts included in the measurement of lease liabilities Operating cash flows from operating leases $ 5,594 $ 4,567 $ 3,637 Operating cash flows from finance leases $ 232 $ 289 $ 289 Financing cash flows from finance leases $ 925 $ 907 $ 600 Right of use assets obtained in exchange for lease obligations Operating leases $ 13,669 $ 7,697 $ 3,487
Summary of Supplemental Balance Sheet Information Related to Leases	Supplemental balance sheet information related to leases was as follows: December 31, (table only in thousands) 2024 2023 Operating leases Right-of-use assets from operating leases $ 25,102 $ 16,256 Accrued expenses $ 4,262 $ 4,278 Operating lease liabilities 20,230 11,417 Total operating lease liabilities $ 24,492 $ 15,695 Finance leases Property, plant and equipment, net $ 1,711 $ 2,097 Accrued expenses $ 743 $ 693 Other liabilities 4,101 4,844 Total finance lease liabilities $ 4,844 $ 5,537
Schedule of Lease Terms and Discount Rate	Weighted-average remaining lease term were as follows: December 31, 2024 2023 Operating leases 9 years 8 years Finance leases 7 years 7 years Weighted-average discount rate Operating leases 6.4 % 5.8 % Finance leases 4.6 % 4.6 %
Schedule of Maturities of Lease Liabilities	As of December 31, 2024, maturities of lease liabilities were as follows: (table only in thousands) Operating Leases Finance Leases 2025 $ 5,810 $ 943 2026 4,886 962 2027 4,026 982 2028 3,641 1,001 2029 3,089 1,021 Thereafter 9,709 575 Total minimum lease payments $ 31,161 $ 5,484 Less imputed interest ( 6,669 ) ( 640 ) Lease liability $ 24,492 $ 4,844

Income Taxes (Tables)

Income Taxes (Tables)	12 Months Ended
	Dec. 31, 2024
Income Tax Disclosure [Abstract]
Schedule of Income (Loss) Before Income Taxes	Income before income taxes was generated in the United States and globally as follows: (in thousands) 2024 2023 2022 Domestic $ 8,222 $ 7,444 $ 11,971 Foreign 9,469 14,081 11,718 Total income before income taxes $ 17,691 $ 21,525 $ 23,689
Schedule of Income Tax Provision	Income tax expense consisted of the following for the years ended December 31: (in thousands) 2024 2023 2022 Current: Federal $ 2,829 $ 3,939 $ 5,009 State 754 1,100 836 Foreign 3,359 2,107 1,755 Total current tax expense 6,942 7,147 7,600 Deferred: Federal $ ( 1,905 ) ( 495 ) ( 3,001 ) State ( 295 ) ( 208 ) ( 231 ) Foreign ( 1,472 ) 580 1,058 Total deferred tax expense ( 3,672 ) ( 123 ) ( 2,174 ) Total tax expense $ 3,270 $ 7,024 $ 5,426 The income tax expense differs from the statutory rate due to the following: (in thousands) 2024 2023 2022 Tax expense at statutory rate $ 3,715 $ 4,488 $ 4,975 Increase (decrease) in tax resulting from: State income tax, net of federal benefit 296 541 340 Capital loss carryforward ( 618 ) — — Other permanent differences 961 290 383 Impact of rate differences and adjustments 1,438 ( 1,046 ) 565 United States tax credits and incentives ( 534 ) ( 532 ) ( 626 ) Foreign tax credits and incentives ( 3,142 ) ( 812 ) ( 895 ) Change in valuation allowance ( 1,508 ) 1,782 ( 526 ) Foreign withholding taxes on repatriation of foreign earnings 253 ( 592 ) 139 Earnout expense (income) 28 85 ( 48 ) Equity compensation ( 82 ) 460 339 Excess compensation 859 360 11 Provision-to-return adjustments ( 468 ) 528 ( 189 ) Investment in joint venture ( 371 ) ( 155 ) 375 Net effect GILTI and FDII 2,871 1,400 565 Other ( 428 ) 227 18 Total tax expense $ 3,270 $ 7,024 $ 5,426
Schedule of Net Deferred Tax Assets and Liabilities	Deferred income taxes reflect the future tax consequences of temporary differences between the carrying amounts of assets and liabilities for financial reporting purposes and the amounts used for income tax purposes and tax credit carry forwards. The net deferred tax liabilities consisted of the following at December 31: (in thousands) 2024 2023 Gross deferred tax assets: Accrued expenses $ 3,135 $ 729 Reserves on assets 2,370 2,769 Share-based compensation awards 731 372 Minimum pension - 920 Net operating loss carry-forwards 3,437 3,785 Tax credit carry-forwards 2,461 2,302 Investment in joint venture 1,333 926 Leases 6,020 3,699 Research and development costs 4,549 3,857 Total gross deferred tax assets 24,036 19,359 Valuation allowances ( 5,415 ) ( 6,545 ) $ 18,621 $ 12,814 Gross deferred tax liabilities: Depreciation ( 2,099 ) ( 1,809 ) Goodwill and intangibles ( 19,652 ) ( 14,299 ) Prepaid expenses and inventory ( 45 ) ( 95 ) Withholding tax on unremitted foreign earnings ( 915 ) ( 662 ) Leases ( 5,883 ) ( 3,571 ) Revenue recognition ( 407 ) ( 694 ) Minimum pension ( 106 ) — Other 130 ( 218 ) Total gross deferred tax liabilities ( 28,977 ) ( 21,348 ) Net deferred tax liabilities $ ( 10,356 ) $ ( 8,534 )
Schedule of Reconciliation of Uncertain Tax Position	A reconciliation of the beginning and ending amount of uncertain tax position reserves included in Other liabilities on the Consolidated Balance Sheets is as follows: (in thousands) 2024 2023 Balance as of January 1, $ 151 $ 144 Additions for tax positions of acquired companies 927 — Additions for tax positions taken in prior years 6 7 Balance as of December 31, $ 1,084 $ 151

Acquisitions (Tables)

Acquisitions (Tables)	12 Months Ended
	Dec. 31, 2024
Verantis Environmental Solutions Group [Member]
Schedule of Estimated Fair Values of Assets Acquired and Liabilities Assumed	T he following table summarizes the preliminary fair values of the assets acquired and liabilities assumed at the date of closing. (in thousands) Current assets (including accounts receivable of $ 10,557 ) $ 21,107 Property and equipment 373 Intangible - finite life 22,070 Goodwill 44,676 Other assets 142 Total assets acquired 88,368 Current liabilities assumed ( 17,595 ) Deferred income tax liability ( 4,349 ) Other liabilities assumed ( 928 ) Net assets acquired $ 65,496
WK Group [Member]
Schedule of Estimated Fair Values of Assets Acquired and Liabilities Assumed	T he following table summarizes the preliminary fair values of the assets acquired and liabilities assumed at the date of closing. (in thousands) Current assets (including accounts receivable of $ 9,705 ) $ 20,294 Property and equipment 853 Intangible - finite life 3,114 Goodwill 2,981 Other assets 441 Total assets acquired 27,683 Current liabilities assumed ( 12,430 ) Deferred income tax liability ( 854 ) Other liabilities assumed ( 1,320 ) Net assets acquired $ 13,079
EnviroCare International LLC [Member]
Schedule of Estimated Fair Values of Assets Acquired and Liabilities Assumed	The following table summarizes the preliminary fair values of the assets acquired and liabilities assumed at the date of closing. (in thousands) Current assets (including cash of $ 596 and accounts receivable of $ 405 ) $ 3,111 Property and equipment 17 Intangible - finite life 7,250 Goodwill 11,348 Total assets acquired 21,726 Current liabilities assumed ( 5,024 ) Net assets acquired $ 16,702
Kemco Systems Co Llc [Member]
Schedule of Estimated Fair Values of Assets Acquired and Liabilities Assumed	The following table summarizes the fair values of the assets acquired and liabilities assumed at the date of closing. (in thousands) Current assets (including accounts receivable of $ 2,328 ) $ 8,902 Property and equipment 341 Right-of-use assets from operating leases 1,602 Intangible - finite life 11,610 Goodwill 11,017 Other assets 16 Total assets acquired 33,488 Current liabilities assumed ( 6,853 ) Other liabilities assumed ( 404 ) Net assets acquired $ 26,231
Transcend Solution [Member]
Schedule of Estimated Fair Values of Assets Acquired and Liabilities Assumed	The following table summarizes the fair values of the assets acquired and liabilities assumed at the date of closing. (in thousands) Current assets (including cash of $ 52 and accounts receivable of $ 1,493 ) $ 2,614 Property and equipment 1,153 Intangible - finite life 8,930 Goodwill 10,839 Other assets 231 Total assets acquired 23,767 Current liabilities assumed ( 1,203 ) Deferred tax liability ( 168 ) Net assets acquired $ 22,396
Malvar Engineering Limited [Member]
Schedule of Estimated Fair Values of Assets Acquired and Liabilities Assumed	The following table summarizes the fair values of the assets acquired and liabilities assumed at the date of closing. (in thousands) Current assets (including accounts receivable of $ 2,467 ) $ 3,240 Property and equipment 635 Intangible - finite life 1,778 Goodwill 5,296 Total assets acquired 10,949 Current liabilities assumed ( 4,860 ) Deferred income tax liability ( 961 ) Net assets acquired $ 5,128
General Rubber LLC [Member]
Schedule of Unaudited Pro Forma Financial Information	The following unaudited pro forma financial information represents the Company’s results of operations as if these acquisitions had occurred at the beginning of the fiscal year prior to the acquisition : December 31, (table only in thousands, except per share data) 2024 2023 2022 Net sales $ 636,191 $ 662,569 $ 478,802 Net income attributable to CECO Environmental Corp. $ 16,332 $ 17,013 $ 20,179 Earnings per share: Basic $ 0.47 $ 0.49 $ 0.58 Diluted $ 0.45 $ 0.48 $ 0.58

Business Segment Information (T

Business Segment Information (Tables)	12 Months Ended
	Dec. 31, 2024
Segment Reporting [Abstract]
Net Sales and Income from Operation by Business Segment	The financial segment information is as follows for the year ended December 31, 2024: (table only in thousands) Engineered Systems Industrial Process Solutions Sales $ 399,032 $ 184,807 Income from operations 72,373 29,575 The financial segment information is as follows for the year ended December 31, 2023: (table only in thousands) Engineered Systems Industrial Process Solutions Sales $ 412,929 $ 183,011 Income from operations 59,846 21,630 The financial segment information is as follows for the year ended December 31, 2022: (table only in thousands) Engineered Systems Industrial Process Solutions Sales $ 278,354 $ 165,221 Income from operations 36,200 22,705
Property and Equipment Additions, Depreciation and Amortization and Identifiable Assets	Other segment information is as follows for the year ended December 31, 2024: (table only in thousands) Engineered Systems Industrial Process Solutions Corporate and Other (1) Total Property and equipment additions $ 3,926 $ 2,863 $ 10,579 $ 17,368 Depreciation and amortization (4) 7,331 4,678 2,514 14,523 (4) The amounts of depreciation and amortization disclosed by reportable segment are included within the other segment expense captions, such as shop burden or general and administrative expense. Other segment information is as follows for the year ended December 31, 2023: (table only in thousands) Engineered Systems Industrial Process Solutions Corporate and Other (1) Total Property and equipment additions $ 2,070 $ 2,827 $ 3,487 $ 8,384 Depreciation and amortization (4) 5,820 4,352 2,335 12,507 (4) The amounts of depreciation and amortization disclosed by reportable segment are included within the other segment expense captions, such as shop burden or general and administrative expense. Other segment information is as follows for the year ended December 31, 2022: (table only in thousands) Engineered Systems Industrial Process Solutions Corporate and Other (1) Total Property and equipment additions $ 203 $ 879 $ 2,294 $ 3,376 Depreciation and amortization (4) 4,672 4,388 1,554 10,614 (4) The amounts of depreciation and amortization disclosed by reportable segment are included within the other segment expense captions, such as shop burden or general and administrative expense.
Intra-Segment and Inter-Segment Revenues	A reconciliation of total segment sales to total consolidated sales, as well as total segment income from operations to total consolidated income from operations and total consolidated net income is as follows for the year ended December 31, 2024: (table only in thousands) Engineered Systems Industrial Process Solutions Total Sales from external customers $ 384,025 $ 173,908 $ 557,933 Intra-segment sales 14,767 10,621 25,388 Inter-segment sales 240 278 518 Total segment sales 399,032 184,807 583,839 Reconciliation to sales Elimination of intra- and inter-segment sales 25,906 Total consolidated sales 557,933 Reconciliation to income before income taxes Direct cost of sales 254,381 110,835 365,216 Shop burden 8,367 11,837 20,204 Selling expense 21,999 11,993 33,992 Project engineering expense 13,821 7,850 21,671 General and administrative expense 19,085 9,939 29,024 Other segment items (1) 6,764 2,767 9,531 Segment profit 74,615 29,586 104,201 Stock-based compensation 7,514 Other corporate expenses (2) 59,033 Elimination of intersegment profit 2,251 Total consolidated income from operations 35,403 Interest expense 13,020 Other profit or loss (3) 4,692 Total consolidated income before income taxes 17,691 (1) Includes amortization expenses, acquisition and integration expenses, and asbestos litigation expenses. Includes corporate compensation, professional services, information technology, and other general, administrative corporate expenses. Includes foreign exchange (gain) loss and pension expense. A reconciliation of total segment sales to total consolidated sales, as well as total segment income from operations to total consolidated income from operations and total consolidated net income is as follows for the year ended December 31, 2023: (table only in thousands) Engineered Systems Industrial Process Solutions Total Sales from external customers $ 380,108 $ 164,737 $ 544,845 Intra-segment sales 31,402 17,489 48,891 Inter-segment sales 1,419 785 2,204 Total segment sales 412,929 183,011 595,940 Reconciliation to sales Elimination of intra- and inter-segment sales 51,095 Total consolidated sales 544,845 Reconciliation to income before income taxes Direct cost of sales 287,016 117,747 404,763 Shop burden 7,563 11,614 19,177 Selling expense 17,933 11,832 29,765 Project engineering expense 11,359 5,588 16,947 General and administrative expense 23,370 10,003 33,373 Other segment items (1) 5,777 3,677 9,454 Segment profit 59,911 22,550 82,461 Stock-based compensation 4,533 Other corporate expenses (2) 42,374 Elimination of intersegment profit 985 Total consolidated income from operations 34,569 Interest expense 13,416 Other profit or loss (3) ( 372 ) Total consolidated income before income taxes 21,525 (1) Includes amortization expenses, acquisition and integration expenses, and asbestos litigation expenses. Includes corporate compensation, professional services, information technology, and other general, administrative corporate expenses. Includes foreign exchange (gain) loss and pension expense. A reconciliation of total segment sales to total consolidated sales, as well as total segment income from operations to total consolidated income from operations and total consolidated net income is as follows for the year ended December 31, 2022: (table only in thousands) Engineered Systems Industrial Process Solutions Total Sales from external customers $ 263,224 $ 159,404 $ 422,627 Intra-segment sales 14,088 5,536 19,624 Inter-segment sales 1,042 281 1,323 Total segment sales 278,354 165,221 443,574 Reconciliation to sales Elimination of intra- and inter-segment sales 20,947 Total consolidated sales 422,627 Reconciliation to income before income taxes Direct cost of sales 200,020 106,037 306,057 Shop burden 2,321 9,487 11,808 Selling expense 12,395 11,350 23,745 Project engineering expense 7,743 4,767 12,510 General and administrative expense 14,426 9,251 23,677 Other segment items (1) 6,396 2,991 9,387 Segment profit 35,053 21,338 56,390 Stock-based compensation 3,895 Other corporate expenses (2) 32,849 Elimination of intersegment profit ( 2,515 ) Total consolidated income from operations 22,161 Interest expense 5,419 Other profit or loss (3) ( 6,947 ) Total consolidated income before income taxes 23,689 (1) Includes amortization expenses, acquisition and integration expenses, and asbestos litigation expenses. Includes corporate compensation, professional services, information technology, and other general, administrative corporate expenses. Includes foreign exchange (gain) loss and pension expense.
Net Sales By Geographic Area	Net sales by geographic area are as follows: December 31, (table only in thousands) 2024 2023 2022 United States $ 376,281 $ 364,483 $ 272,702 United Kingdom 62,961 51,066 39,635 Netherlands 52,629 51,149 43,184 China 30,622 24,660 22,816 Other 35,440 53,487 44,290 Total net sales $ 557,933 $ 544,845 $ 422,627
Long-Lived Assets By Geographic Area	Long-lived assets by geographic area are as follows: December 31, (table only in thousands) 2024 2023 United States $ 332,162 $ 270,613 United Kingdom 27,003 26,785 China 36,315 2,017 Other 33,248 19,439 Total long-lived assets $ 428,728 $ 318,854 The geographical area data for long-lived assets is based upon physical location of such assets.

Nature of Business and Summar_4

Nature of Business and Summary of Significant Accounting Policies - Additional Information (Detail) $ in Thousands	12 Months Ended
	Dec. 31, 2024 USD ($) Obligation shares	Dec. 31, 2023 USD ($) shares	Dec. 31, 2022 USD ($) shares	Dec. 31, 2021 USD ($)
Nature Of Business And Summary Of Significant Accounting Policies [Line Items]
Cash equivalents and restricted cash, original maturities of highly liquid investments	3 months
Accounts receivables payment period from invoice date	30 days
Contract liabilities	95%	95%	75%
Estimated earnings			$ 32,700
Costs and estimated earnings in excess of billings on uncompleted contracts	$ 69,889	$ 66,574	71,000
Accrued expenses		4,500
Debt discount expensed	498	427	371
Selling, General and Administrative Expense	146,698	122,944	$ 93,473
Provision for estimated losses on uncompleted contracts	$ 0	$ 0
Anti-dilutive options and unvested restricted stock units outstanding | shares	0	0	1,100,000
Foreign currency transaction gain (loss)	$ (4,300)	$ 1,200	$ 6,300
Energy Solutions And Industrial Solutions Segments
Nature Of Business And Summary Of Significant Accounting Policies [Line Items]
Revenue performance obligation, description of timing	The typical life of contracts is generally less than 12 months and each contract generally contains only one performance obligation, to provide goods or services to the customer.
Number of performance obligation | Obligation	1
Interest Expense
Nature Of Business And Summary Of Significant Accounting Policies [Line Items]
Amortization of deferred finance cost	$ 500	400	400
Selling, General and Administrative Expenses [Member]
Nature Of Business And Summary Of Significant Accounting Policies [Line Items]
Advertising expense	700	600	$ 500
Discount to Debt [Member]
Nature Of Business And Summary Of Significant Accounting Policies [Line Items]
Capitalized deferred financing costs	2,700	1,300
Amended and Restated Credit Agreement [Member]
Nature Of Business And Summary Of Significant Accounting Policies [Line Items]
Customary closing fees	1,800	$ 400		$ 800
Gain (Loss) on Extinguishment of Debt	$ 100
Tradename [Member]
Nature Of Business And Summary Of Significant Accounting Policies [Line Items]
Intangible assets, Useful Life	10 years
Minimum [Member] | Technology [Member]
Nature Of Business And Summary Of Significant Accounting Policies [Line Items]
Intangible assets, Useful Life	7 years
Minimum [Member] | Customer Lists [Member]
Nature Of Business And Summary Of Significant Accounting Policies [Line Items]
Intangible assets, Useful Life	5 years
Maximum [Member] | Energy Solutions And Industrial Solutions Segments
Nature Of Business And Summary Of Significant Accounting Policies [Line Items]
Contracts life	12 months
Maximum [Member] | Technology [Member]
Nature Of Business And Summary Of Significant Accounting Policies [Line Items]
Intangible assets, Useful Life	10 years
Maximum [Member] | Customer Lists [Member]
Nature Of Business And Summary Of Significant Accounting Policies [Line Items]
Intangible assets, Useful Life	20 years
Land, Building And Improvements [Member] | Minimum [Member]
Nature Of Business And Summary Of Significant Accounting Policies [Line Items]
Property, Plant and Equipment, Useful Life	5 years
Land, Building And Improvements [Member] | Maximum [Member]
Nature Of Business And Summary Of Significant Accounting Policies [Line Items]
Property, Plant and Equipment, Useful Life	40 years
Machinery And Equipment And Other [Member] | Minimum [Member]
Nature Of Business And Summary Of Significant Accounting Policies [Line Items]
Property, Plant and Equipment, Useful Life	2 years
Machinery And Equipment And Other [Member] | Maximum [Member]
Nature Of Business And Summary Of Significant Accounting Policies [Line Items]
Property, Plant and Equipment, Useful Life	15 years

Nature of Business and Summar_5

Nature of Business and Summary of Significant Accounting Policies - Schedule of Reconciliation of Cash, Cash Equivalents and Restricted Cash Reported within Consolidated Statements of Cash Flows (Detail) - USD ($) $ in Thousands	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Accounting Changes and Error Corrections [Abstract]
Cash and cash equivalents	$ 37,832	$ 54,779
Restricted cash	369	669
Total cash, cash equivalents and restricted cash	$ 38,201	$ 55,448	$ 46,585	$ 31,995

Nature of Business and Summar_6

Nature of Business and Summary of Significant Accounting Policies - Schedule of Numerators and Denominators Used to Calculate Basic and Diluted Earnings Per Share (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Numerator (for basic and diluted earnings per share)
Net Income (Loss)	$ 12,957	$ 12,911	$ 17,417
Denominator
Basic weighted-average shares outstanding	34,927,313	34,665,473	34,672,007
Common stock equivalents arising from stock options and restricted stock awards	1,455,000	669,000	333,000
Diluted weighted-average shares outstanding	36,381,910	35,334,090	35,005,159

Financial Instruments - Additio

Financial Instruments - Additional Information (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023
Fair Value Of Financial Instruments [Line Items]
Cash and cash equivalents	$ 37,832	$ 54,779
Cash held outside United States, principally in Netherlands, United Kingdom, China, and Canada	29,700	38,500
Credit Facility [Member]
Fair Value Of Financial Instruments [Line Items]
Fair value of debt issued	$ 221,500	$ 138,600

Accounts Receivable - Summary o

Accounts Receivable - Summary of Accounts Receivable (Detail) - USD ($) $ in Thousands	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Accounts, Notes, Loans and Financing Receivable [Line Items]
Accounts receivable	$ 168,435	$ 119,193
Allowance for credit losses	(8,863)	(6,460)
Total accounts receivable	$ 159,572	$ 112,733	$ 83,100

Accounts Receivable - Additiona

Accounts Receivable - Additional Information (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Receivables [Abstract]
Amount billed but not received under retainage provisions in contracts	$ 13,600	$ 3,200	$ 1,600
Accounts receivable, net of allowances of $8,863 and $6,460	159,572	112,733	83,100
Provision for doubtful accounts	295	1,593	1,340
Charge-offs	$ 2,900	$ (600)	$ 600

Inventories - Summary of Invent

Inventories - Summary of Inventories (Detail) - USD ($) $ in Thousands	Dec. 31, 2024	Dec. 31, 2023
Inventory, Net [Abstract]
Raw materials	$ 27,466	$ 25,819
Work in process	14,532	9,710
Finished goods	4,342	2,368
Obsolescence allowance	(3,716)	(3,808)
Total inventories	$ 42,624	$ 34,089

Inventories - Additional Inform

Inventories - Additional Information (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Inventory Disclosure [Abstract]
Amounts credited to the allowance for obsolete inventory	$ 1.1	$ 1.1	$ 0.1
Items charged to the allowance for inventory write-offs	$ 0.3	$ 0.3	$ 0

Property, Plant and Equipment -

Property, Plant and Equipment - Summary of Property, Plant and Equipment (Detail) - USD ($) $ in Thousands	Dec. 31, 2024	Dec. 31, 2023
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	$ 74,985	$ 45,648
Less accumulated depreciation	(41,175)	(19,411)
Property, plant and equipment, net	33,810	26,237
Land, Building And Improvements [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	17,788	12,284
Machinery And Equipment And Other [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	$ 57,197	$ 33,364

Property, Plant and Equipment_2

Property, Plant and Equipment - Additional Information (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Property, Plant and Equipment [Abstract]
Depreciation expense	$ 5.8	$ 5.1	$ 3.6

Goodwill and Intangible Asset_2

Goodwill and Intangible Assets - Goodwill / Tradename (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023
Goodwill [Line Items]
Goodwill, beginning balance	$ 211,326	$ 183,197
Goodwill, acquisitions	59,115	27,152
Goodwill, foreign currency translation	(694)	977
Goodwill, ending balance	269,747	211,326
Tradename, beginning balance	9,570	9,508
Tradename, foreign currency adjustments	(104)	62
Tradename, ending balance	9,466	9,570
Engineered Systems segment [Member]
Goodwill [Line Items]
Goodwill, beginning balance	142,229	114,746
Goodwill, acquisitions	110	27,152
Goodwill, foreign currency translation	(596)	331
Goodwill, ending balance	141,743	142,229
Industrial Process Solutions segment [Member]
Goodwill [Line Items]
Goodwill, beginning balance	69,097	68,451
Goodwill, acquisitions	59,005	0
Goodwill, foreign currency translation	(98)	646
Goodwill, ending balance	$ 128,004	$ 69,097

Goodwill and Intangible Asset_3

Goodwill and Intangible Assets - Additional Information (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2017
Schedule Of Goodwill And Other Intangible Assets [Line Items]
Aggregate amount of goodwill acquired	$ 330.4	$ 272
Aggregate amount of impairment				$ 60.7
Goodwill, impairment loss	0	0	$ 0
Amortization expense of finite life intangible assets	8.7	$ 7.4	$ 7
Amortization expense of finite life intangibles for 2025	12.2
Amortization expense of finite life intangibles for 2026	11.7
Amortization expense of finite life intangibles for 2027	10.6
Amortization expense of finite life intangibles for 2028	9.8
Amortization expense of finite life intangibles for 2029	$ 8.5

Goodwill and Intangible Asset_4

Goodwill and Intangible Assets - Intangible Assets - Finite Lived (Detail) - USD ($) $ in Thousands	Dec. 31, 2024	Dec. 31, 2023
Finite-Lived Intangible Assets [Line Items]
Cost	$ 163,728	$ 132,999
Accumulated Amortization	89,678	82,538
Technology [Member]
Finite-Lived Intangible Assets [Line Items]
Cost	20,614	16,517
Accumulated Amortization	14,769	14,061
Customer Lists [Member]
Finite-Lived Intangible Assets [Line Items]
Cost	127,354	103,471
Accumulated Amortization	70,045	63,420
Tradename [Member]
Finite-Lived Intangible Assets [Line Items]
Cost	18,530	14,094
Accumulated Amortization	6,392	5,001
Foreign Currency Adjustments [Member]
Finite-Lived Intangible Assets [Line Items]
Cost	(2,770)	(1,083)
Accumulated Amortization	$ (1,528)	$ 56

Accrued Expenses - Summary of A

Accrued Expenses - Summary of Accounts Payable and Accrued Expenses (Detail) - USD ($) $ in Thousands	Dec. 31, 2024	Dec. 31, 2023
Payables and Accruals [Abstract]
Compensation and related benefits	$ 12,274	$ 11,278
Accrued warranty	4,558	5,105
Contract liability	9,746	7,875
Short-term operating lease liability	4,262	4,278
Other	16,688	15,765
Total accrued expenses	$ 47,528	$ 44,301

Accrued Expenses - Summary of_2

Accrued Expenses - Summary of Activity of Current Portion of Earnout Liability (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023
Payables and Accruals [Abstract]
Earnout accrued at beginning of year	$ 2,200	$ 1,200
Fair value of earnout at acquisition date	6,332	2,800
Fair value adjustment	134	296
Payments and other	(2,831)	(2,096)
Earnout accrued at end of year	5,835	2,200
Current portion, recorded within Accrued expenses	60	1,115
Non-current portion, recorded within Other liabilities	$ 5,775	$ 1,085

Accrued Expenses - Additional I

Accrued Expenses - Additional Information (Details) - USD ($) $ in Thousands				12 Months Ended
	Aug. 31, 2026	Sep. 30, 2025	May 03, 2022	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Restructuring Cost and Reserve [Line Items]
Amortization and earnout expenses				$ 9,064	$ 8,180	$ 6,809
Fair value adjustment				134	296
Subsequent Event [Member]
Restructuring Cost and Reserve [Line Items]
Estimated fair value of earnout liabilities	$ 4,000	$ 27,500
Compass Water Solutions Inc Member
Restructuring Cost and Reserve [Line Items]
Estimated fair value of earnout liabilities			$ 1,400
Increase Decrease In Amortization And Earnout Expenses						$ 200
Amortization and earnout expenses					1,500
Kemco Systems Co Llc [Member]
Restructuring Cost and Reserve [Line Items]
Estimated fair value of earnout liabilities				2,200
Accrued expenses				100
Amortization and earnout expenses				2,800
Fair value adjustment				700
Malvar Engineering Limited [Member]
Restructuring Cost and Reserve [Line Items]
Estimated fair value of earnout liabilities					600
Amortization and earnout expenses					$ 600
WK Group [Member]
Restructuring Cost and Reserve [Line Items]
Non-current Portion of Earnout Liability				$ 6,300

Senior Debt - Summary of Debt (

Senior Debt - Summary of Debt (Detail) - USD ($) $ in Thousands	Dec. 31, 2024	Dec. 31, 2023
Debt Instrument [Line Items]
Total outstanding borrowings	$ 218,880	$ 137,283
Less: current portion	(1,650)	(10,488)
Debt, less current portion	217,230	126,795
Term Loan [Member]
Debt Instrument [Line Items]
Total outstanding borrowings	0	112,424
Revolving Credit Loan [Member]
Debt Instrument [Line Items]
Revolving Credit Loan	214,200	17,300
Senior Debt [Member]
Debt Instrument [Line Items]
Total outstanding borrowings	214,200	129,724
Line Of Credit [Member]
Debt Instrument [Line Items]
Outstanding borrowings under the joint venture term debt	7,297	8,855
Term Debt [Member]
Debt Instrument [Line Items]
Unamortized debt discount	$ (2,617)	$ (1,296)

Senior Debt - Additional Inform

Senior Debt - Additional Information (Detail) € in Millions			1 Months Ended	12 Months Ended
	Oct. 07, 2024 USD ($)	Oct. 30, 2023 USD ($)	Dec. 17, 2021 USD ($)	Dec. 31, 2024 USD ($)	Dec. 31, 2024 EUR (€)	Dec. 31, 2023 USD ($)	Dec. 31, 2022 USD ($)	Dec. 31, 2021 USD ($)	Mar. 07, 2022 USD ($)
Line Of Credit Facility [Line Items]
Credit facility principal payments 2025				$ 1,700,000
Credit facility principal payments 2026				1,900,000
Credit facility principal payments 2027				3,700,000
Credit facility principal payments 2028				0
Credit facility principal payments 2029				214,200,000
Basis spread on variable rate	1%
Liabilities				507,806,000		$ 362,800,000
Revenues | €					€ 750
Net Income (Loss)				12,957,000		12,911,000	$ 17,417,000
Assets Current				$ 330,971,000		$ 281,437,000
effective interest rate				7.82%		7.70%
Weighted average interest rate on outstanding borrowings				7.07%		8.29%
Line of Credit Maturity Date	Oct. 07, 2029
Minimum [Member]
Line Of Credit Facility [Line Items]
Basis spread on variable rate	1%
Fluctuating Annual Rate	1.75%
Maximum consolidated leverage ratio				1.75%
Credit Facility Interest Rate	0.75%
Maximum [Member]
Line Of Credit Facility [Line Items]
Fluctuating Annual Rate	3.25%
Maximum consolidated leverage ratio				3.25%
Credit Facility Interest Rate	2.25%
Federal Funds Rate [Member]
Line Of Credit Facility [Line Items]
Basis spread on variable rate				0.50%	0.50%
SOFR Rate [Member]
Line Of Credit Facility [Line Items]
Basis spread on variable rate				0.11%	0.11%
Base Rate [Member] | Minimum [Member]
Line Of Credit Facility [Line Items]
Basis spread on variable rate				1.75%	1.75%
Base Rate [Member] | Maximum [Member]
Line Of Credit Facility [Line Items]
Basis spread on variable rate				3.25%	3.25%
Credit Agreement [Member]
Line Of Credit Facility [Line Items]
Unused credit availability under credit facility				$ 166,900,000		$ 109,400,000
Aggregate principal amount, Senior secured revolving credit	$ 400,000,000
Credit Agreement [Member] | SOFR Rate [Member] | Minimum [Member]
Line Of Credit Facility [Line Items]
Basis spread on variable rate				0.11%	0.11%
Credit Agreement [Member] | SOFR Rate [Member] | Maximum [Member]
Line Of Credit Facility [Line Items]
Basis spread on variable rate				0.43%	0.43%
Amended Credit Agreement [Member]
Line Of Credit Facility [Line Items]
Net Leverage Ratio	0.04
Aggregate Consideration	$ 15,000,000
Increase and Decrease of Net Leverage Ratio	0.045
Revolving Credit Loan	$ 125,000,000
Amended Credit Agreement [Member] | Minimum [Member]
Line Of Credit Facility [Line Items]
Fixed Charge Coverage Ratio	1%
Amended Credit Agreement [Member] | Maximum [Member]
Line Of Credit Facility [Line Items]
Fixed Charge Coverage Ratio	1.25%
Net Leverage Ratio	0.03
Amended Credit Agreement [Member] | Pounds Sterling [Member]
Line Of Credit Facility [Line Items]
Basis spread on variable rate	0.0326%
Amended Credit Agreement [Member] | Canadian Dollar [Member] | Minimum [Member]
Line Of Credit Facility [Line Items]
Basis spread on variable rate	0.29547%
Amended Credit Agreement [Member] | Canadian Dollar [Member] | Maximum [Member]
Line Of Credit Facility [Line Items]
Basis spread on variable rate	0.32138%
Amended Credit Agreement [Member] | Secured Overnight Financing Rate (SOFR) [Member]
Line Of Credit Facility [Line Items]
Basis spread on variable rate	0.10%
Amended Credit Agreement [Member] | Fiscal Quarter [Member]
Line Of Credit Facility [Line Items]
Net Leverage Ratio	0.03
Increase and Decrease of Net Leverage Ratio	0.035
Amended and Restated Credit Agreement [Member]
Line Of Credit Facility [Line Items]
Customary closing fees				$ 1,800,000		400,000		$ 800,000
Gain (Loss) on Extinguishment of Debt				100,000
Payment Of Customary Closing Fees				1,800,000		400,000		$ 800,000
Second Amended and Restated Credit Agreement [Member]
Line Of Credit Facility [Line Items]
Aggregate Principal Amount to Repay Revolving Credit Loan		$ 75,000,000
Aggregate principal amount, Term loan			$ 44,100,000
Aggregate principal amount, Senior secured revolving credit			$ 140,000,000
Debt Instrument, Maturity Date			Dec. 17, 2026
Effox Flextor Madder [Member]
Line Of Credit Facility [Line Items]
Assets, Noncurrent				25,400,000		26,700,000
Liabilities				14,000,000		12,500,000
Revenues				47,000,000		37,700,000	35,800,000
Net Income (Loss)				4,100,000		4,200,000	$ 2,300,000
Assets Current				$ 16,200,000		$ 14,500
Weighted average interest rate on outstanding borrowings				7.96%		8.70%
Effox Flextor Madder [Member] | Credit Agreement [Member]
Line Of Credit Facility [Line Items]
Aggregate principal amount, Senior secured revolving credit									$ 11,000,000
Revolving Credit Loan [Member]
Line Of Credit Facility [Line Items]
Revolving Credit Loan				$ 214,200,000		$ 17,300,000
Letters of Credit [Member]
Line Of Credit Facility [Line Items]
Aggregate principal amount outstanding under the credit facilities				18,900,000		13,300,000
Letters of Credit [Member] | Effox Flextor Madder [Member]
Line Of Credit Facility [Line Items]
Aggregate principal amount outstanding under the credit facilities				7,300,000		8,900,000
Bank Guarantees [Member]
Line Of Credit Facility [Line Items]
Bank guarantee issuance under bilateral lines and collateral				80,000,000
Revolving Credit Loan				45,900,000		45,800,000
Bank Guarantees [Member] | Euro-Denominated Bank Guarantee [Member]
Line Of Credit Facility [Line Items]
Revolving Credit Loan				1,100,000		1,300,000
Netherlands Facility [Member] | Euro-Denominated Bank Guarantee [Member]
Line Of Credit Facility [Line Items]
Revolving Credit Loan				$ 2,100,000		$ 2,300,000

Shareholders' Equity - Addition

Shareholders' Equity - Additional Information (Detail) - USD ($) $ in Millions		12 Months Ended
	Jul. 06, 2020	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022	May 10, 2022	May 25, 2021
Class of Stock [Line Items]
Number of stock option granted		25,000	0	0
Share-based compensation expense		$ 7.2	$ 4.3	$ 3.9
Tax benefit related to stock based compensation expense		$ 1.6	0.8	0.5
Discount from market price		15%
Employees offering dates intervals		6 months
Number of shares authorized in employee stock purchase plan		1,300,000
Employee stock purchase plan period		10 years
Employee stock purchase plan number of shares remain available for future issuance		1,100,000
Employee stock purchase plan expense		$ 0.3	0.2	0.1
Cash received from employee stock option exercised		0.4	1.2	0.4
Intrinsic value of option exercised		0.4	0.3	0.2
Fair value of Awards, Vested		4.1	$ 5.9	2.3
Purchase of outstanding shares of common stock					$ 20
Common Stock Cost		$ 5		$ 7
Common stock repurchase and retirement, Shares			0
Common Stock Repurchased and Retired During Period, Shares		230,000		1,032,000
Chief Executive Officer [Member]
Class of Stock [Line Items]
2017 stock options or stock awards, vesting period	4 years
Number of stock awards granted	1,200,000
Restricted stock units fair value	$ 2.4
Common Stock [Member]
Class of Stock [Line Items]
Common stock repurchase and retirement, Shares		(230)		(1,032,000)
2017 Plan [Member]
Class of Stock [Line Items]
Number of stock option granted			0
Shares available for future grant		1,300,000
2017 Plan [Member] | Common Stock [Member]
Class of Stock [Line Items]
Number of shares reserved for issuance						2,600,000
2017 Plan [Member] | Minimum [Member]
Class of Stock [Line Items]
2017 stock options or stock awards, vesting period		2 years
2017 Plan [Member] | Maximum [Member]
Class of Stock [Line Items]
2017 stock options or stock awards, vesting period		4 years
Employee Stock Option | 2017 Plan [Member]
Class of Stock [Line Items]
2017 stock options or stock awards, vesting period		4 years
Restricted Stock Units [Member] | Chief Executive Officer [Member]
Class of Stock [Line Items]
2017 stock options or stock awards, vesting period	4 years
Number of stock awards granted	94,000
Restricted stock units fair value	$ 0.6
Restricted Stock and Performance Units [Member]
Class of Stock [Line Items]
Unrecognized compensation expense related to stock options and restricted stock		$ 11.7
Weighted average vesting period		1 year 1 month 6 days

Shareholders' Equity - Summary

Shareholders' Equity - Summary of Stock Option (Detail) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Equity [Abstract]
Beginning balance of outstanding shares	1,247,000	1,440,000	1,514,000
Granted, Shares	25,000	0	0
Forfeitures, Shares	(2,000)	(92,000)	(32,000)
Exercised, Shares	(28,000)	(101,000)	(42,000)
Ending balance of outstanding, shares	1,242,000	1,247,000	1,440,000	1,514,000
Exercisable, Shares	1,216,000	942,000	833,000
Beginning Balance of Outstanding Weighted Average Exercise Price	$ 11.09	$ 11.3	$ 11.19
Grants, Weighted Average Exercise Price	21.32
Forfeitures, Weighted Average Exercise Price	13.08	13.43	10.55
Exercised, Weighted Average Exercise Price	12.09	11.93	8.15
Ending Balance of Outstanding Weighted Average Exercise Price	11.35	11.09	11.3	$ 11.19
Exercisable, Weighted Average Exercise Price	$ 11.15	$ 11.1	$ 11.47
Outstanding, Weighted Average Remaining Contractual Term	2 years 7 months 6 days	3 years 4 months 24 days	4 years	4 years 10 months 24 days
Exercisable, Weighted Average Remaining Contractual Term	2 years 6 months	3 years 4 months 24 days	3 years 7 months 6 days
Outstanding, Aggregate Intrinsic Value	$ 23,902	$ 11,452	$ 1,766
Exercisable, Aggregate Intrinsic Value	$ 23,676	$ 8,652	$ 923

Shareholders' Equity - Summar_2

Shareholders' Equity - Summary of Restricted Stock Awards (Detail) - Restricted Stock [Member] - 2007 Plan [Member] - $ / shares shares in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Schedule Of Summary Of Restricted Stock Unit Activity [Line Items]
Beginning balance , Nonvested shares	1,321	1,178	1,033
Granted , Nonvested shares	356	734	755
Vested , Nonvested shares	(409)	(417)	(355)
Forfeited , Nonvested shares	(74)	(174)	(255)
Ending balance , Nonvested shares	1,194	1,321	1,178
Beginning balance ,Weighted average grant date fair value	$ 11.77	$ 6.53	$ 7.17
Fair value of stock awards granted	22.03	16.12	5.74
Vested , Weighted average grant date fair value	9.19	6.56	6.8
Forfeited , Weighted average grant date fair value	14.29	7.19	6.41
Ending balance , Weighted average grant date fair value	$ 14.98	$ 11.77	$ 6.53

Pension and Employee Benefit _3

Pension and Employee Benefit Plans - Schedule of Changes in Projected Benefit Obligations (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Change in plan assets:
Fair value of plan assets at beginning of year	$ 22,646
Fair value of plan assets at end of year	25,144	$ 22,646
Funded status at end of year	$ 500	$ (4,100)	$ (5,500)
Discount rate	4.70%	4.90%	2.55%
Defined Benefit Plan, Net Periodic Benefit Cost (Credit) Excluding Service Cost, Statement of Income or Comprehensive Income [Extensible Enumeration]	Interest Expense, Operating and Nonoperating	Interest Expense, Operating and Nonoperating	Interest Expense, Operating and Nonoperating
Pension Benefits [Member]
Change in projected benefit obligation:
Projected benefit obligation at beginning of year	$ 26,760	$ 27,350	$ 35,035
Interest cost	1,215	1,274	877
Actuarial (gain) loss	(1,237)	183	(6,540)
Benefits paid	(2,073)	(2,047)	(2,022)
Projected benefit obligation at end of year	24,665	26,760	27,350
Change in plan assets:
Fair value of plan assets at beginning of year	22,646	21,821	29,474
Actual return on plan assets	3,236	2,872	(5,631)
Employer contribution	1,335	0	0
Benefits paid	(2,073)	(2,047)	(2,022)
Fair value of plan assets at end of year	25,144	22,646	21,821
Funded status at end of year	$ 479	$ (4,114)	$ (5,529)
Discount rate	5.35%	4.70%	4.90%

Pension and Employee Benefit _4

Pension and Employee Benefit Plans - Additional Information (Detail) - USD ($)	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Defined Benefit And Contribution Plan Disclosure [Line Items]
Funded status	$ 500,000	$ (4,100,000)	$ (5,500,000)
Accumulated Benefit Obligation	$ 24,700,000	$ 26,800,000	$ 27,400,000
Current Assets Mix percentage	100%	100%
Assumed average annual returns	5.50%	5.50%	5.50%
Liability has been provided in the accompanying consolidated financial statements	$ 0
Amounts charged to pension expense	200,000	$ 500,000	$ 400,000
Aggregate matching contributions and discretionary contributions Amount	$ 2,300,000	2,000,000	1,500,000
Employee Deferral Category One [Member]
Defined Benefit And Contribution Plan Disclosure [Line Items]
Profit sharing and 401(k) savings retirement plan for non-union employees Description	The plan covers substantially all employees who have 30 days of service, and who have attained 18 years of age.
Percentage of Employee salary deferral provision	100%
Pension Plan [Member]
Defined Benefit And Contribution Plan Disclosure [Line Items]
Funded status	$ 479,000	(4,114,000)	(5,529,000)
Company contributions to the pension plan	1,300,000
Company contributions to the pension plan		$ 0	$ 0
Estimated pension plan cash obligations payable in 2023	2,100,000
Estimated pension plan cash obligations payable in 2027 through 2030	$ 9,500,000
Minimum [Member] | Debt Securities [Member]
Defined Benefit And Contribution Plan Disclosure [Line Items]
Current Assets Mix percentage	30%
Assumed average annual returns	4%
Minimum [Member] | Equity Securities [Member]
Defined Benefit And Contribution Plan Disclosure [Line Items]
Current Assets Mix percentage	60%
Assumed average annual returns	8%
Maximum [Member] | Debt Securities [Member]
Defined Benefit And Contribution Plan Disclosure [Line Items]
Current Assets Mix percentage	40%
Assumed average annual returns	6%
Maximum [Member] | Equity Securities [Member]
Defined Benefit And Contribution Plan Disclosure [Line Items]
Current Assets Mix percentage	70%
Assumed average annual returns	12%

Pension and Employee Benefit _5

Pension and Employee Benefit Plans - Schedule of Net Periodic Benefit Cost For Pension Benefits Included in the Accompanying Consolidated Statements of Income (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Health Care Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Interest cost	$ 1,215	$ 1,274	$ 877
Expected return on plan assets	(1,223)	(1,142)	(1,560)
Amortization of net loss	226	297	263
Pension Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Interest cost	1,215	1,274	877
Net periodic benefit income (expense)	$ 218	$ 429	$ (420)

Pension and Employee Benefit _6

Pension and Employee Benefit Plans - Schedule of Other Changes in Plan Assets and Benefit Obligations Recognized in Other Comprehensive Income (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Retirement Benefits [Abstract]
Net (gain) loss	$ (3,249)	$ (1,548)	$ 651
Amortization of net actuarial loss	(226)	(297)	(263)
Total recognized in other comprehensive income (loss)	(3,475)	(1,845)	388
Total recognized in net periodic benefit cost and other comprehenive income (loss)	$ (3,257)	$ (1,416)	$ (32)

Pension and Employee Benefit _7

Pension and Employee Benefit Plans - Weighted-average Assumptions Used to Determine Net Periodic Benefit Cost (Detail)	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Retirement Benefits [Abstract]
Discount rate	4.70%	4.90%	2.55%
Expected return on assets	5.50%	5.50%	5.50%

Pension and Employee Benefit _8

Pension and Employee Benefit Plans - Details of Defined Benefit Pension Plan Asset Allocation by Asset Category (Detail)	Dec. 31, 2024	Dec. 31, 2023
Defined Benefit Plan Disclosure [Line Items]
Target Allocation	100%
Percentage of Plan Assets	100%	100%
Cash and cash equivalents [Member]
Defined Benefit Plan Disclosure [Line Items]
Target Allocation	0%
Percentage of Plan Assets	1%	1%
Equity Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Target Allocation	70%
Percentage of Plan Assets	74%	76%
Debt Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Target Allocation	30%
Percentage of Plan Assets	25%	23%

Pension and Employee Benefit _9

Pension and Employee Benefit Plans - Disclosure of Fair Value Measurements of Pension Plan Assets (Detail) - USD ($) $ in Thousands	Dec. 31, 2024	Dec. 31, 2023
Defined Benefit Plans and Other Postretirement Benefit Plans [Line Items]
Pension assets, at fair value	$ 25,144	$ 22,646
Equity Securities [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans [Line Items]
Pension assets, at fair value	18,622	17,233
Debt Securities [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans [Line Items]
Pension assets, at fair value	6,324	5,102
Level 1 [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans [Line Items]
Pension assets, at fair value	25,144	22,646
Level 1 [Member] | Equity Securities [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans [Line Items]
Pension assets, at fair value	18,622	17,233
Level 1 [Member] | Debt Securities [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans [Line Items]
Pension assets, at fair value	6,324	5,102
Cash and cash equivalents [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans [Line Items]
Pension assets, at fair value	198	311
Cash and cash equivalents [Member] | Level 1 [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans [Line Items]
Pension assets, at fair value	$ 198	$ 311

Pension and Employee Benefit_10

Pension and Employee Benefit Plans - Summary of Pension Fund General Information (Detail)	12 Months Ended
	Dec. 31, 2024
Multiemployer Plans [Line Items]
EIN/Pension Number	13-2566064
Sheet Metal Workers' National Pension Fund [Member]
Multiemployer Plans [Line Items]
EIN/Pension Number	52-6112463
Pension Protection Act Zone Status	Green
FIF/RP Status Pending/Implemented	Implemented
Surcharge Imposed	No
Expiration of Collective Bargaining Agreement	Various
Sheet Metal Workers Local Two Two Four Pension Plan [Member]
Multiemployer Plans [Line Items]
EIN/Pension Number	31-6171353
Pension Protection Act Zone Status	Yellow
FIF/RP Status Pending/Implemented	Implemented
Surcharge Imposed	No
Sheet Metal Workers Local One Seven Seven Pension Fund [Member]
Multiemployer Plans [Line Items]
EIN/Pension Number	62-6093256
Pension Protection Act Zone Status	Green
FIF/RP Status Pending/Implemented	NA
Surcharge Imposed	No
Expiration of Collective Bargaining Agreement	April 30, 2026

Leases - Schedule of components

Leases - Schedule of components of lease expense (Detail) - USD ($) $ in Thousands		12 Months Ended
		Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Leases [Abstract]
Operating lease cost	[1]	$ 6,146	$ 4,643	$ 3,558
Finance lease cost:
Amortization of right-of-use assets		309	232	309
Interest on lease liability		232	289	289
Total finance lease cost		541	521	598
Total lease cost		$ 6,687	$ 5,164	$ 4,156
[1] Includes variable lease costs which are immaterial.

Leases - Summary of Supplementa

Leases - Summary of Supplemental Cash Flow Information Related to Leases (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Cash paid for amounts included in the measurement of lease liabilities
Operating cash flows from operating leases	$ 5,594	$ 4,567	$ 3,637
Operating cash flows from finance leases	232	289	289
Financing cash flows from finance leases	925	907	600
Operating leases	$ 13,669	$ 7,697	$ 3,487

Leases - Summary of Supplemen_2

Leases - Summary of Supplemental Balance Sheet Information Related to Leases (Detail) - USD ($) $ in Thousands	Dec. 31, 2024	Dec. 31, 2023
Operating leases
Right-of-use assets from operating leases	$ 25,102	$ 16,256
Operating lease liabilities, current	$ 4,262	$ 4,278
Operating Lease, Liability, Current, Statement of Financial Position [Extensible List]	Operating lease liabilities	Operating lease liabilities
Operating lease liabilities	$ 20,230	$ 11,417
Lease liability	24,492	15,695
Finance leases
Finance leases right of use asset	$ 1,711	$ 2,097
Finance Lease, Right-of-Use Asset, Statement of Financial Position [Extensible List]	Property, plant and equipment, net	Property, plant and equipment, net
Finance lease liabilities, current	$ 743	$ 693
Finance Lease, Liability, Current, Statement of Financial Position [Extensible List]	Debt, less current portion	Debt, less current portion
Finance lease liabilities, non-current	$ 4,101	$ 4,844
Finance Lease, Liability, Noncurrent, Statement of Financial Position [Extensible List]	Other liabilities	Other liabilities
Total finance lease liabilities	$ 4,844	$ 5,537

Leases - Schedule of Lease Term

Leases - Schedule of Lease Terms and Discount Rate (Detail)	Dec. 31, 2024	Dec. 31, 2023
Weighted-average remaining lease term were as follows:
Operating leases	9 years	8 years
Finance leases	7 years	7 years
Weighted-average discount rate
Operating leases	6.40%	5.80%
Finance leases	4.60%	4.60%

Leases - Schedule of Maturities

Leases - Schedule of Maturities of Lease Liabilities (Detail) - USD ($) $ in Thousands	Dec. 31, 2024	Dec. 31, 2023
Operating leases
2025	$ 5,810
2026	4,886
2027	4,026
2028	3,641
2029	3,089
Thereafter	9,709
Total minimum lease payments	31,161
Less imputed interest	(6,669)
Lease liability	24,492	$ 15,695
Finance leases
2024	943
2026	962
2027	982
2028	1,001
2029	1,021
Thereafter	575
Total minimum lease payments	5,484
Less imputed interest	(640)
Lease liability	$ 4,844	$ 5,537

Commitments and Contingencies -

Commitments and Contingencies - Additional Information (Detail)	12 Months Ended
	Dec. 31, 2024 USD ($) Case	Dec. 31, 2023 USD ($)
Other Commitments [Line Items]
Cumulative settlement payments for cases involving asbestos-related claims	$ 7,500,000
Average cost per settled claim excluding legal fees	34,000
Accrued expenses	$ 47,528,000	$ 44,301,000
Number of claims pending | Case	313
Assessment regarding Loss contingency impact Description	not aware of any pending claims or assessments, other than as described above, which may have a material adverse impact on its liquidity, financial position, results of operations, or cash flows.
Asbestos Issue [Member]
Other Commitments [Line Items]
Accrued expenses	$ 200,000	$ 0

Income Taxes - Additional Infor

Income Taxes - Additional Information (Detail) € in Millions, $ in Millions	12 Months Ended
	Dec. 31, 2024 USD ($)	Dec. 31, 2024 EUR (€)	Dec. 31, 2023 USD ($)	Dec. 31, 2022 USD ($)
Income Taxes [Line Items]
Liability for deferred taxes on undistributed foreign earnings	$ 0.9
Federal Net Operating Loss Carry Forwards Year Start	2029	2029
Federal Net Operating Loss Carry Forwards Year End	2034	2034
State and local net operating loss carry forwards year start	2025	2025
State and local net operating loss carry forwards year end	2044	2044
Valuation reserve	$ 5.4		$ 6.5
Additional income tax expense (benefit)	$ (1.1)		1.5	$ (0.5)
Income tax positions recognized, minimum percentage	50%	50%
Expense for interest and penalties	$ 0.1		$ 0.1
Global minimum corporate tax	15%	15%
Revenues | €		€ 750
Federal [Member]
Income Taxes [Line Items]
Net operating loss carry forward	$ 3.7
State and Local Jurisdiction [Member]
Income Taxes [Line Items]
Net operating loss carry forward	28.3
Overseas Jurisdictions [Member]
Income Taxes [Line Items]
Net operating loss carry forward	$ 7.3

Income Taxes - Schedule of Inco

Income Taxes - Schedule of Income (Loss) Before Income Taxes (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Income (Loss) from Continuing Operations before Equity Method Investments, Income Taxes, Noncontrolling Interest [Abstract]
Domestic	$ 8,222	$ 7,444	$ 11,971
Foreign	9,469	14,081	11,718
Total income before income taxes	$ 17,691	$ 21,525	$ 23,689

Income Taxes - Schedule of In_2

Income Taxes - Schedule of Income Tax Provision (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Current:
Federal	$ 2,829	$ 3,939	$ 5,009
State	754	1,100	836
Foreign	3,359	2,107	1,755
Total current tax expense	6,942	7,147	7,600
Deferred:
Federal	(1,905)	(495)	(3,001)
State	(295)	(208)	(231)
Foreign	(1,472)	580	1,058
Total deferred tax expense	(3,672)	(123)	(2,174)
Total tax expense	$ 3,270	$ 7,024	$ 5,426

Income Taxes - Schedule of Reco

Income Taxes - Schedule of Reconciliation of Income Tax Provision and Statutory Rate (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Income Tax Disclosure [Abstract]
Tax expense at statutory rate	$ 3,715	$ 4,488	$ 4,975
Increase (decrease) in tax resulting from:
State income tax, net of federal benefit	296	541	340
Capital loss carryforward	(618)	0	0
Other permanent differences	961	290	383
Impact of rate differences and adjustments	1,438	(1,046)	565
United States tax credits and incentives	(534)	(532)	(626)
Foreign tax credits and incentives	(3,142)	(812)	(895)
Change in valuation allowance	(1,508)	1,782	(526)
Foreign withholding taxes on repatriation of foreign earnings	253	(592)	139
Earnout expense (income)	28	85	(48)
Equity compensation	(82)	460	339
Excess compensation	859	360	11
Provision-to-return adjustments	(468)	528	(189)
Investment in joint venture	(371)	(155)	375
Net effect GILTI and FDII	2,871	1,400	565
Other	(428)	227	18
Total tax expense	$ 3,270	$ 7,024	$ 5,426

Income Taxes - Schedule of Net

Income Taxes - Schedule of Net Deferred Tax Assets and Liabilities (Detail) - USD ($) $ in Thousands	Dec. 31, 2024	Dec. 31, 2023
Gross deferred tax assets:
Accrued expenses	$ 3,135	$ 729
Reserves on assets	2,370	2,769
Share-based compensation awards	731	372
Minimum pension	0	920
Net operating loss carry-forwards	3,437	3,785
Tax credit carry-forwards	2,461	2,302
Investment in joint venture	1,333	926
Leases	6,020	3,699
Research and development costs	4,549	3,857
Total gross deferred tax assets	24,036	19,359
Valuation allowances	(5,415)	(6,545)
Total Deferred Tax Assets	18,621	12,814
Gross deferred tax liabilities:
Depreciation	(2,099)	(1,809)
Goodwill and intangibles	(19,652)	(14,299)
Prepaid expenses and inventory	(45)	(95)
Withholding tax on unremitted foreign earnings	(915)	(662)
Leases	(5,883)	(3,571)
Revenue recognition	(407)	(694)
Minimum pension	(106)	0
Other	130	(218)
Total gross deferred tax liabilities	(28,977)	(21,348)
Net deferred tax liabilities	$ (10,356)	$ (8,534)

Income Taxes - Schedule of Re_2

Income Taxes - Schedule of Reconciliation of Uncertain Tax Position (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023
Unrecognized Tax Benefits [Roll Forward]
Balance as of January 1	$ 151	$ 144
Additions for tax positions of acquired companies	927	0
Additions for tax positions taken in prior years	6	7
Balance as of December 31	$ 1,084	$ 151

Acquisitions - Additional Infor

Acquisitions - Additional Information (Detail) $ in Thousands, € in Millions	12 Months Ended
	Dec. 31, 2024 USD ($)	Dec. 31, 2024 EUR (€)	Dec. 31, 2023 USD ($)	Dec. 31, 2022 USD ($)	Dec. 17, 2024 USD ($)	Oct. 02, 2024 USD ($)	Jul. 29, 2024 USD ($)	Aug. 23, 2023 USD ($)	Mar. 31, 2023 USD ($)	Jan. 10, 2023 USD ($)
Business Acquisition Contingent Consideration [Line Items]
Revenues | €		€ 750
Non-current portion, recorded within Other liabilities	$ 5,775		$ 1,085
Deferred Compensation Cash-Based Arrangements, Liability, Current									$ 2,400
Tradename [Member]
Business Acquisition Contingent Consideration [Line Items]
Intangible assets, Useful Life	10 years
Kemco Systems Co Llc [Member]
Business Acquisition Contingent Consideration [Line Items]
Acquisition of equity								100%
Contingent consideration								$ 24,000
Working Capital Adjustment								400
Reduction in Purchase Price								23,600
Additional consideration	$ 2,800							4,000
Net revenue			2,000
Revenues			13,100
Accrued expenses	100
Earn out estimated fair value	2,900							$ 2,200
Kemco Systems Co Llc [Member] | Technology [Member]
Business Acquisition Contingent Consideration [Line Items]
Acquired intangible assets			$ 1,400
Intangible assets, Useful Life			7 years
Kemco Systems Co Llc [Member] | Customer Lists [Member]
Business Acquisition Contingent Consideration [Line Items]
Acquired intangible assets			$ 8,700
Intangible assets, Useful Life			10 years
Kemco Systems Co Llc [Member] | Tradename [Member]
Business Acquisition Contingent Consideration [Line Items]
Acquired intangible assets			$ 1,500
Intangible assets, Useful Life			10 years
Transcend Solution [Member]
Business Acquisition Contingent Consideration [Line Items]
Acquisition of equity									100%
Contingent consideration									$ 20,000
Net revenue			$ 1,700
Revenues			10,300
Notes Payable, Total	1,000								2,000
Deferred Compensation Cash-Based Arrangements, Liability, Current									22,400
Holdback Payble									$ 400
Transcend Solution [Member] | Technology [Member]
Business Acquisition Contingent Consideration [Line Items]
Acquired intangible assets			$ 600
Intangible assets, Useful Life			7 years
Transcend Solution [Member] | Customer Lists [Member]
Business Acquisition Contingent Consideration [Line Items]
Acquired intangible assets			$ 7,600
Intangible assets, Useful Life			10 years
Transcend Solution [Member] | Tradename [Member]
Business Acquisition Contingent Consideration [Line Items]
Acquired intangible assets			$ 700
Intangible assets, Useful Life			10 years
Malvar Engineering Limited [Member]
Business Acquisition Contingent Consideration [Line Items]
Acquisition of equity										100%
Contingent consideration										$ 4,100
Net revenue			$ 1,300
Revenues			13,800
Non-current portion, recorded within Other liabilities										600
Deferred Compensation Cash-Based Arrangements, Liability, Current										$ 400
Malvar Engineering Limited [Member] | Customer Lists [Member]
Business Acquisition Contingent Consideration [Line Items]
Acquired intangible assets			$ 1,500
Intangible assets, Useful Life			10 years
Malvar Engineering Limited [Member] | Tradename [Member]
Business Acquisition Contingent Consideration [Line Items]
Acquired intangible assets			$ 300
General Rubber LLC [Member]
Business Acquisition Contingent Consideration [Line Items]
Net revenue				$ 2,100
Revenues				11,700
Compass Water Solutions, Inc [Member]
Business Acquisition Contingent Consideration [Line Items]
Net revenue				100
Revenues				3,700
Western Air Ducts Ltd [Member]
Business Acquisition Contingent Consideration [Line Items]
Net revenue				300
Revenues				1,500
DS21 Co., Ltd. [Member]
Business Acquisition Contingent Consideration [Line Items]
Net revenue				500
Revenues				$ 1,900
Verantis Environmental Solutions Group [Member]
Business Acquisition Contingent Consideration [Line Items]
Acquisition of equity					100%
Contingent consideration					$ 65,500
Net revenue	200
Revenues	2,400
Verantis Environmental Solutions Group [Member] | Technology [Member]
Business Acquisition Contingent Consideration [Line Items]
Acquired intangible assets	$ 2,400
Intangible assets, Useful Life	7 years
Verantis Environmental Solutions Group [Member] | Customer Lists [Member]
Business Acquisition Contingent Consideration [Line Items]
Acquired intangible assets	$ 17,000
Intangible assets, Useful Life	10 years
Verantis Environmental Solutions Group [Member] | Tradename [Member]
Business Acquisition Contingent Consideration [Line Items]
Acquired intangible assets	$ 2,600
Intangible assets, Useful Life	10 years
WK Group [Member]
Business Acquisition Contingent Consideration [Line Items]
Acquisition of equity						100%
Contingent consideration						$ 6,800
Net revenue	$ 700
Revenues	4,600
Earn out estimated fair value						6,300
Non-current portion, recorded within Other liabilities						$ 27,500
WK Group [Member] | Technology [Member]
Business Acquisition Contingent Consideration [Line Items]
Acquired intangible assets	$ 1,000
Intangible assets, Useful Life	7 years
WK Group [Member] | Customer Lists [Member]
Business Acquisition Contingent Consideration [Line Items]
Acquired intangible assets	$ 1,200
Intangible assets, Useful Life	10 years
WK Group [Member] | Tradename [Member]
Business Acquisition Contingent Consideration [Line Items]
Acquired intangible assets	$ 1,000
Intangible assets, Useful Life	10 years
EnviroCare International LLC [Member]
Business Acquisition Contingent Consideration [Line Items]
Acquisition of equity							100%
Contingent consideration							$ 15,700
Promissory Note							1,700
Working Capital Adjustment							700
Net revenue	$ 900
Revenues	6,000
Deferred Compensation Cash-Based Arrangements, Liability, Current							$ 16,800
EnviroCare International LLC [Member] | Technology [Member]
Business Acquisition Contingent Consideration [Line Items]
Acquired intangible assets	$ 800
Intangible assets, Useful Life	7 years
EnviroCare International LLC [Member] | Customer Lists [Member]
Business Acquisition Contingent Consideration [Line Items]
Acquired intangible assets	$ 800
Intangible assets, Useful Life	10 years
EnviroCare International LLC [Member] | Tradename [Member]
Business Acquisition Contingent Consideration [Line Items]
Acquired intangible assets	$ 5,700
Intangible assets, Useful Life	10 years

Acquisitions - Schedule of Esti

Acquisitions - Schedule of Estimated Fair Values of Assets Acquired and Liabilities Assumed (Detail) - USD ($) $ in Thousands	Dec. 31, 2024	Dec. 17, 2024	Oct. 02, 2024	Jul. 29, 2024	Dec. 31, 2023	Aug. 23, 2023	Mar. 31, 2023	Jan. 10, 2023	Dec. 31, 2022
Business Acquisition [Line Items]
Goodwill	$ 269,747				$ 211,326				$ 183,197
Right-of-use assets from operating leases	$ 25,102				$ 16,256
Kemco Systems Co Llc [Member]
Business Acquisition [Line Items]
Current assets						$ 8,902
Property and equipment						341
Intangible - finite life						11,610
Goodwill						11,017
Right-of-use assets from operating leases						1,602
Other assets						16
Total assets acquired						33,488
Current liabilities assumed						(6,853)
Other Liabilities						(404)
Net assets acquired						$ 26,231
Transcend Solution [Member]
Business Acquisition [Line Items]
Current assets							$ 2,614
Property and equipment							1,153
Intangible - finite life							8,930
Goodwill							10,839
Other assets							231
Total assets acquired							23,767
Current liabilities assumed							(1,203)
Deferred income tax liability							(168)
Net assets acquired							$ 22,396
Malvar Engineering Limited [Member]
Business Acquisition [Line Items]
Current assets								$ 3,240
Property and equipment								635
Intangible - finite life								1,778
Goodwill								5,296
Total assets acquired								10,949
Current liabilities assumed								(4,860)
Deferred income tax liability								(961)
Net assets acquired								$ 5,128
Verantis Environmental Solutions Group [Member]
Business Acquisition [Line Items]
Current assets		$ 21,107
Property and equipment		373
Intangible - finite life		22,070
Goodwill		44,676
Other assets		142
Total assets acquired		88,368
Current liabilities assumed		(17,595)
Deferred income tax liability		(4,349)
Other Liabilities		(928)
Net assets acquired		$ 65,496
WK Group [Member]
Business Acquisition [Line Items]
Current assets			$ 20,294
Property and equipment			853
Intangible - finite life			3,114
Goodwill			2,981
Other assets			441
Total assets acquired			27,683
Current liabilities assumed			(12,430)
Deferred income tax liability			(854)
Other Liabilities			(1,320)
Net assets acquired			$ 13,079
EnviroCare International LLC [Member]
Business Acquisition [Line Items]
Current assets				$ 3,111
Property and equipment				17
Intangible - finite life				7,250
Goodwill				11,348
Total assets acquired				21,726
Current liabilities assumed				(5,024)
Net assets acquired				$ 16,702

Acquisitions - Schedule of Es_2

Acquisitions - Schedule of Estimated Fair Values of Assets Acquired and Liabilities Assumed (Parenthetical) (Detail) - USD ($) $ in Thousands							12 Months Ended
	Dec. 17, 2024	Oct. 02, 2024	Jul. 29, 2024	Aug. 23, 2023	Mar. 31, 2023	Jan. 10, 2023	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Business Acquisition [Line Items]
Account receivable							$ 52,355	$ 26,851	$ 6,751
Kemco Systems Co Llc [Member]
Business Acquisition [Line Items]
Account receivable				$ 2,328
Transcend Solution [Member]
Business Acquisition [Line Items]
Cash, Current assets					$ 52
Account receivable					$ 1,493
Malvar Engineering Limited [Member]
Business Acquisition [Line Items]
Account receivable						$ 2,467
Verantis Environmental Solutions Group [Member]
Business Acquisition [Line Items]
Account receivable	$ 10,557
WK Group [Member]
Business Acquisition [Line Items]
Account receivable		$ 9,705
EnviroCare International LLC [Member]
Business Acquisition [Line Items]
Cash, Current assets			$ 596
Account receivable			$ 405

Acquisitions - Schedule of Unau

Acquisitions - Schedule of Unaudited Pro Forma Financial Information (Details) - Malvar Engineering Limited [Member] - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Business Acquisition [Line Items]
Net sales	$ 636,191	$ 662,569	$ 478,802
Net income attributable to CECO Environmental Corp	$ 16,332	$ 17,013	$ 20,179
Earnings Per Share [Abstract]
Basic	$ 0.47	$ 0.49	$ 0.58
Diluted	$ 0.45	$ 0.48	$ 0.58

Business Segment Information -

Business Segment Information - Additional Information (Detail) - Segment	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Segment Reporting Information [Line Items]
Number of reportable segments	2
Net Sales [Member] | Customer Concentration Risk [Member] | No Single Customer [Member]
Segment Reporting Information [Line Items]
Major customer	10%	10%	10%
Accounts Receivable [Member] | Customer Concentration Risk [Member] | No Single Customer [Member]
Segment Reporting Information [Line Items]
Major customer	10%	10%	10%

Business Segment Information _2

Business Segment Information - Net Sales and Income from Operation by Business Segment (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Segment Reporting Information [Line Items]
Net sales	$ 557,933	$ 544,845	$ 422,627
Income from operations	35,403	34,569	22,161
Operating Segments [Member]
Segment Reporting Information [Line Items]
Net sales			422,627
Income from operations	35,403	34,569	22,161
Engineered Systems [Member] | Operating Segments [Member]
Segment Reporting Information [Line Items]
Net sales	399,032	412,929	278,354
Income from operations	72,373	59,846	36,200
Industrial Process Solutions [Member] | Operating Segments [Member]
Segment Reporting Information [Line Items]
Net sales	184,807	183,011	165,221
Income from operations	$ 29,575	$ 21,630	$ 22,705

Business Segment Information _3

Business Segment Information - Property and Equipment Additions, Depreciation and Amortization and Identifiable Assets (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024		Dec. 31, 2023		Dec. 31, 2022
Segment Reporting Information [Line Items]
Property and equipment additions	$ 17,368		$ 8,384		$ 3,376
Depreciation and amortization	14,523	[1]	12,507	[2]	10,614	[3]
Engineered Systems Segment [Member]
Segment Reporting Information [Line Items]
Property and equipment additions	3,926		2,070		203
Depreciation and amortization	7,331	[1]	5,820	[2]	4,672	[3]
Corporate and Other [Member]
Segment Reporting Information [Line Items]
Property and equipment additions	10,579		3,487		2,294
Depreciation and amortization	2,514	[1]	2,335	[2]	1,554	[3]
Industrial Process Solutions Segment [Member]
Segment Reporting Information [Line Items]
Property and equipment additions	2,863		2,827		879
Depreciation and amortization	$ 4,678	[1]	$ 4,352	[2]	$ 4,388	[3]
[1] The amounts of depreciation and amortization disclosed by reportable segment are included within the other segment expense captions, such as shop burden or general and administrative expense. The amounts of depreciation and amortization disclosed by reportable segment are included within the other segment expense captions, such as shop burden or general and administrative expense. The amounts of depreciation and amortization disclosed by reportable segment are included within the other segment expense captions, such as shop burden or general and administrative expense.

Business Segment Information _4

Business Segment Information - Intra-Segment and Inter-Segment Revenues (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024		Dec. 31, 2023		Dec. 31, 2022
Segment Reporting Information [Line Items]
Net sales	$ 557,933		$ 544,845		$ 422,627
Stock-based compensation	7,514		4,533		3,895
Total consolidated income from operations	35,403		34,569		22,161
Total income before income taxes	17,691		21,525		23,689
Operating Segments [Member]
Segment Reporting Information [Line Items]
Net sales					422,627
Direct cost of sales	365,216		404,763		306,057
Shop burden	20,204		19,177		11,808
Selling expense	33,992		29,765		23,745
Project engineering expense	21,671		16,947		12,510
General and administrative expense	29,024		33,373		23,677
Other segment items	9,531	[1]	9,454	[2]	9,387	[3]
Segment profit	104,201		82,461		56,390
Stock-based compensation	7,514		4,533		3,895
Other corporate expenses	59,033	[4]	42,374	[5]	32,849	[6]
Elimination of intersegment profit	2,251		985		(2,515)
Total consolidated income from operations	35,403		34,569		22,161
Interest Expense	13,020		13,416		5,419
Other profit or loss	4,692	[7]	(372)	[8]	(6,947)	[9]
Total income before income taxes	17,691		21,525		23,689
Operating Segments [Member] | Industrial Segment Sales [Member]
Segment Reporting Information [Line Items]
Net sales	557,933		544,845		422,627
Operating Segments [Member] | Engineered Systems Segment [Member]
Segment Reporting Information [Line Items]
Net sales	399,032		412,929		278,354
Direct cost of sales	254,381		287,016		200,020
Shop burden	8,367		7,563		2,321
Selling expense	21,999		17,933		12,395
Project engineering expense	13,821		11,359		7,743
General and administrative expense	19,085		23,370		14,426
Other segment items	6,764	[1]	5,777	[2]	6,396	[3]
Segment profit	74,615		59,911		35,053
Total consolidated income from operations	72,373		59,846		36,200
Operating Segments [Member] | Engineered Systems Segment [Member] | Industrial Segment Sales [Member]
Segment Reporting Information [Line Items]
Net sales	384,025		380,108		263,224
Operating Segments [Member] | Industrial Process Solutions Segment [Member]
Segment Reporting Information [Line Items]
Net sales	184,807		183,011		165,221
Direct cost of sales	110,835		117,747		106,037
Shop burden	11,837		11,614		9,487
Selling expense	11,993		11,832		11,350
Project engineering expense	7,850		5,588		4,767
General and administrative expense	9,939		10,003		9,251
Other segment items	2,767	[1]	3,677	[2]	2,991	[3]
Segment profit	29,586		22,550		21,338
Total consolidated income from operations	29,575		21,630		22,705
Operating Segments [Member] | Industrial Process Solutions Segment [Member] | Industrial Segment Sales [Member]
Segment Reporting Information [Line Items]
Net sales	173,908		164,737		159,404
Operating Segments [Member] | Intra - Segment Sales [Member]
Segment Reporting Information [Line Items]
Excise and Sales Taxes	25,906		51,095		20,947
Net sales	25,388		48,891		19,624
Operating Segments [Member] | Intra - Segment Sales [Member] | Engineered Systems Segment [Member]
Segment Reporting Information [Line Items]
Net sales	14,767		31,402		14,088
Operating Segments [Member] | Intra - Segment Sales [Member] | Industrial Process Solutions Segment [Member]
Segment Reporting Information [Line Items]
Net sales	10,621		17,489		5,536
Operating Segments [Member] | Inter - Segment Sales [Member]
Segment Reporting Information [Line Items]
Net sales	518		2,204		1,323
Operating Segments [Member] | Inter - Segment Sales [Member] | Engineered Systems Segment [Member]
Segment Reporting Information [Line Items]
Net sales	240		1,419		1,042
Operating Segments [Member] | Inter - Segment Sales [Member] | Industrial Process Solutions Segment [Member]
Segment Reporting Information [Line Items]
Net sales	278		785		281
Operating Segments [Member] | Total Segment Sales [Member]
Segment Reporting Information [Line Items]
Net sales	$ 583,839		$ 595,940		$ 443,574
[1] Includes amortization expenses, acquisition and integration expenses, and asbestos litigation expenses. Includes amortization expenses, acquisition and integration expenses, and asbestos litigation expenses. Includes amortization expenses, acquisition and integration expenses, and asbestos litigation expenses. Includes corporate compensation, professional services, information technology, and other general, administrative corporate expenses. Includes corporate compensation, professional services, information technology, and other general, administrative corporate expenses. Includes corporate compensation, professional services, information technology, and other general, administrative corporate expenses. Includes foreign exchange (gain) loss and pension expense. Includes foreign exchange (gain) loss and pension expense. Includes foreign exchange (gain) loss and pension expense.

Business Segment Information _5

Business Segment Information - Net Sales By Geographic Area (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Segment Reporting Information [Line Items]
Total net sales	$ 557,933	$ 544,845	$ 422,627
United States
Segment Reporting Information [Line Items]
Total net sales	376,281	364,483	272,702
United Kingdom
Segment Reporting Information [Line Items]
Total net sales	62,961	51,066	39,635
Netherlands
Segment Reporting Information [Line Items]
Total net sales	52,629	51,149	43,184
China
Segment Reporting Information [Line Items]
Total net sales	30,622	24,660	22,816
Other
Segment Reporting Information [Line Items]
Total net sales	$ 35,440	$ 53,487	$ 44,290

Business Segment Information _6

Business Segment Information - Long-Lived Assets By Geographic Area (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023
Segment Reporting Information [Line Items]
Total long-lived assets	$ 428,728	$ 318,854
United States
Segment Reporting Information [Line Items]
Total long-lived assets	332,162	270,613
United Kingdom
Segment Reporting Information [Line Items]
Total long-lived assets	27,003	26,785
China
Segment Reporting Information [Line Items]
Total long-lived assets	36,315	2,017
Other
Segment Reporting Information [Line Items]
Total long-lived assets	$ 33,248	$ 19,439

Subsequent Events - Additional

Subsequent Events - Additional Information (Details) $ in Millions	Jan. 03, 2025 USD ($)
Subsequent Event [Member]
Subsequent Event [Line Items]
Aggregate consideration paid	$ 122.7