CECO Environmental (CECO) 10-Q 8 Aug 18 2018 Q2 Quarterly report Financial data

Document and Entity Information

Document and Entity Information - shares	6 Months Ended
	Jun. 30, 2018	Aug. 03, 2018
Document And Entity Information [Abstract]
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Jun. 30, 2018
Document Fiscal Year Focus	2,018
Document Fiscal Period Focus	Q2
Trading Symbol	CECE
Entity Registrant Name	CECO ENVIRONMENTAL CORP
Entity Central Index Key	3,197
Current Fiscal Year End Date	--12-31
Entity Filer Category	Accelerated Filer
Entity Common Stock, Shares Outstanding		34,911,231

Condensed Consolidated Balance

Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017
Current assets:
Cash and cash equivalents	$ 35,556	$ 29,902
Restricted cash	284	591
Accounts receivable, net	67,796	67,990
Costs and estimated earnings in excess of billings on uncompleted contracts	35,188	33,947
Inventories, net	22,450	20,969
Prepaid expenses and other current assets	12,601	10,760
Prepaid income taxes	699	1,930
Assets held for sale	6,708	7,853
Total current assets	181,282	173,942
Property, plant and equipment, net	22,161	23,400
Goodwill	152,371	166,951
Intangible assets – finite life, net	42,444	49,956
Intangible assets – indefinite life	18,300	19,691
Deferred charges and other assets	4,843	4,609
Total assets	421,401	438,549
Current liabilities:
Current portion of debt		11,296
Accounts payable and accrued expenses	79,352	70,786
Billings in excess of costs and estimated earnings on uncompleted contracts	23,340	20,469
Note payable	5,300	5,300
Income taxes payable	1,612
Total current liabilities	109,604	107,851
Other liabilities	30,407	30,382
Debt, less current portion	80,895	103,537
Deferred income tax liability, net	9,268	10,210
Total liabilities	230,174	251,980
Commitments and contingencies
Shareholders’ equity:
Preferred stock, $.01 par value; 10,000 shares authorized, none issued
Common stock, $.01 par value; 100,000,000 shares authorized, 34,892,193 and 34,707,924 shares issued and outstanding at June 30, 2018 and December 31, 2017, respectively	349	347
Capital in excess of par value	249,674	248,170
Accumulated loss	(47,420)	(52,673)
Accumulated other comprehensive loss	(11,020)	(8,919)
Stockholders' equity before treasury stock	191,583	186,925
Less treasury stock, at cost, 137,920 shares at June 30, 2018 and December 31, 2017	(356)	(356)
Total shareholders’ equity	191,227	186,569
Total liabilities and shareholders' equity	$ 421,401	$ 438,549

Condensed Consolidated Balance3

Condensed Consolidated Balance Sheets (Parenthetical) - $ / shares	Jun. 30, 2018	Dec. 31, 2017
Statement Of Financial Position [Abstract]
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	34,892,193	34,707,924
Common Stock, shares outstanding	34,892,193	34,707,924
Treasury stock, shares	137,920	137,920

Condensed Consolidated Statemen

Condensed Consolidated Statements of Operations (Unaudited) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Income Statement [Abstract]
Net sales	$ 81,089	$ 93,870	$ 155,229	$ 186,521
Cost of sales	53,937	65,384	102,143	126,106
Gross profit	27,152	28,486	53,086	60,415
Selling and administrative expenses	21,967	21,476	43,931	44,732
Amortization and earnout expenses (income)	2,493	(2,245)	5,397	5,078
Loss (gain) on divestitures, net of selling costs	73		(11,104)
Restructuring expenses	38		150
Income from operations	2,581	9,255	14,712	10,605
Other (expense) income, net	(373)	360	(711)	251
Interest expense	(1,793)	(1,645)	(3,713)	(3,356)
Income before income taxes	415	7,970	10,288	7,500
Income tax expense	1,316	2,484	5,426	1,976
Net (loss) income	$ (901)	$ 5,486	$ 4,862	$ 5,524
(Loss) earnings per share:
Basic	$ (0.03)	$ 0.16	$ 0.14	$ 0.16
Diluted	$ (0.03)	$ 0.16	$ 0.14	$ 0.16
Weighted average number of common shares outstanding:
Basic	34,669,810	34,473,688	34,631,519	34,345,317
Diluted	34,669,810	34,806,808	34,715,141	34,685,687

Condensed Consolidated Stateme5

Condensed Consolidated Statements of Comprehensive Income (Loss) (Unaudited) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Statement Of Income And Comprehensive Income [Abstract]
Net (loss) income	$ (901)	$ 5,486	$ 4,862	$ 5,524
Other comprehensive income (loss), net of tax:
Interest rate swap	55	(115)	248	28
Foreign currency translation	(3,292)	1,763	(1,282)	2,169
Comprehensive (loss) income	$ (4,138)	$ 7,134	$ 3,828	$ 7,721

Condensed Consolidated Stateme6

Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017
Cash flows from operating activities:
Net income	$ 4,862	$ 5,524
Adjustment to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	6,956	8,168
Unrealized foreign currency loss (gain)	746	(1,497)
Net gain on interest rate swaps	(104)	(129)
Fair value adjustments to earnout liabilities		(1,755)
Earnout payments	(2,050)	(7,797)
(Gain) / loss on sale of property and equipment	(9)	83
Gain on divestitures	(11,104)
Debt discount amortization	582	504
Share-based compensation expense	1,488	677
Bad debt expense	646	960
Inventory reserve expense	444	316
Deferred income tax expense	(744)	(46)
Changes in operating assets and liabilities, net of divestitures:
Accounts receivable	(6,539)	17,342
Costs and estimated earnings in excess of billings on uncompleted contracts	(2,911)	(1,646)
Inventories	(1,629)	(407)
Prepaid expense and other current assets	2,407	1,808
Deferred charges and other assets	(219)	792
Accounts payable and accrued expenses	12,605	(8,018)
Billings in excess of costs and estimated earnings on uncompleted contracts	3,110	(11,828)
Income taxes payable	1,589	(1,367)
Other liabilities	(267)	(9)
Net cash provided by operating activities	9,859	1,675
Cash flows from investing activities:
Acquisitions of property and equipment	(591)	(641)
Net cash proceeds from divestitures	30,692
Proceeds from sale of property and equipment	112	44
Net cash provided by (used in) investing activities	30,213	(597)
Cash flows from financing activities:
Net repayments on revolving credit lines	(3,792)	(1,107)
Repayments of debt	(30,756)	(7,656)
Deferred financing fees paid		(171)
Earnout payments		(7,396)
Proceeds from lease financing transaction	800
Payments on capital leases and sale-leaseback transactions	(344)	(375)
Proceeds from employee stock purchase plan, exercise of stock options, and dividend reinvestment plan	18	1,246
Dividends paid to common shareholders	(24)	(5,173)
Net cash used in financing activities	(34,098)	(20,632)
Effect of exchange rate changes on cash, cash equivalents and restricted cash	(793)	472
Net increase (decrease) in cash, cash equivalents and restricted cash	5,181	(19,082)
Cash, cash equivalents and restricted cash at beginning of period	30,659	48,006
Cash, cash equivalents and restricted cash at end of period	35,840	28,924
Cash paid during the period for:
Interest	2,924	2,842
Income taxes	3,318	$ 2,704
Non-cash transactions:
Net consideration receivable from divestiture and disposal of asset held for sale	$ 2,685

Basis of Reporting for Consolid

Basis of Reporting for Consolidated Financial Statements	6 Months Ended
	Jun. 30, 2018
Organization Consolidation And Presentation Of Financial Statements [Abstract]
Basis of Reporting for Consolidated Financial Statements	1. Basis of Reporting for Consolidated Financial Statements The accompanying unaudited condensed consolidated financial statements of CECO Environmental Corp. and its subsidiaries (the “Company”, “we”, “us”, or “our”) have been prepared pursuant to the rules and regulations of the Securities and Exchange Commission (the “SEC”). Certain information and footnote disclosures normally included in annual financial statements have been condensed or omitted pursuant to those rules and regulations. In the opinion of management, the accompanying unaudited condensed consolidated financial statements of the Company contain all adjustments (consisting only of normal recurring adjustments) necessary to present fairly the financial position as of June 30, 2018 and the results of operations and cash flows for the three-month and six-month periods ended June 30, 2018 and 2017. The results of operations for the three-month and six-month periods ended June 30, 2018 are not necessarily indicative of the results to be expected for the full year. The balance sheet as of December 31, 2017 has been derived from the audited consolidated financial statements included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2017 as filed with the SEC. 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. These financial statements and accompanying notes should be read in conjunction with the audited financial statements and the notes thereto included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2017 filed with the SEC. Unless otherwise indicated, all balances within tables are in thousands, except per share amounts.

New Financial Accounting Pronou

New Financial Accounting Pronouncements	6 Months Ended
	Jun. 30, 2018
Accounting Changes And Error Corrections [Abstract]
New Financial Accounting Pronouncements	2. New Financial Accounting Pronouncements Accounting Standards Adopted in Fiscal 2018 In March 2018, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update (“ASU”) 2018-05, “Income Taxes (Topic 740): Amendments to SEC Paragraphs Pursuant to SEC Staff Accounting Bulletin No. 118.” The standard relates to the accounting and disclosures around the issuance of the SEC’s Staff Accounting Bulletin No. 118, “Income Tax Accounting Implications of the Tax Cuts and Jobs Act” (“SAB 118”), which the Company has adopted. See Note 12 – Income Taxes for the disclosures related to this amended guidance. In February 2018, the FASB issued ASU No. 2018-02, “Income Statement — Reporting Comprehensive Income (Topic 220): Reclassification of Certain Tax Effects from Accumulated Other Comprehensive Income.” The standard allows for reclassification of stranded tax effects on items resulting from the Tax Cuts and Jobs Act (the “Tax Act”) from accumulated other comprehensive income to retained earnings. Tax effects unrelated to the Tax Act are released from accumulated other comprehensive income based on the nature of the underlying item. The Company early adopted the ASU in the first quarter of fiscal 2018, under the prospective method. As a result of the adoption, during the first quarter of fiscal 2018, accumulated loss in the Condensed Consolidated Balance Sheets increased by $1.2 million, with a corresponding decrease to accumulated other comprehensive loss in the Condensed Consolidated Balance Sheets due to the reduction in the corporate tax rate from 35% to 21%. See Note 12 — Income Taxes for additional information about the Tax Act. In May 2017, the FASB issued ASU 2017-09, “Compensation – Stock Compensation (Topic 718): Scope of Modification Accounting.” ASU 2017-09 clarifies when changes to the terms or conditions of a share-based payment award must be accounted for as a modification. The new guidance will reduce diversity in practice and result in fewer changes to the terms of an award being accounted for as a modification. Under ASU 2017-09, an entity will not apply modification accounting to a share-based payment award if the award’s fair value, vesting conditions and classification as an equity or liability instrument are the same immediately before and after the change. We adopted ASU 2017-09 on January 1, 2018, under the prospective method. The adoption had no impact on our consolidated financial statements as there were no events requiring management to evaluate for a potential modification to a share-based payment award. In March 2017, the FASB issued ASU 2017-07, “Compensation – Retirement Benefits (Topic 715): Improving the Presentation of Net Periodic Pension Cost and Net Periodic Postretirement Benefit Cost.” Under existing GAAP, an entity is required to present all components of net periodic pension cost and net periodic postretirement benefit cost aggregated as a net amount in the income statement, and this net amount may be capitalized as part of an asset where appropriate. ASU 2017-07 requires that an employer report the service cost component in the same line item or items as other compensation costs arising from services rendered by the pertinent employees during the period, and requires the other components of net periodic pension cost and net periodic postretirement benefit cost to be presented in the income statement separately from the service cost component and outside a subtotal of income from operations, if one is presented. Additionally, only the service cost component is eligible for capitalization, when applicable. We adopted ASU 2017-07 on January 1, 2018, under the retrospective method for the presentation of the service cost component and the other components of net periodic pension cost and net periodic postretirement benefit cost in the income statement and prospectively, on and after the effective date, for the capitalization of the service cost component of net periodic pension cost and net periodic postretirement benefit in assets. The adoption resulted in reclassification of other components of net periodic pension cost, other than service cost outside of operating income and the impact was not material. See Note 11 – Pension and Employee Benefit Plans for additional disclosures related to the adoption of the standard. In January 2017, the FASB issued ASU 2017-01, “Business Combinations (Topic 805): Clarifying the Definition of a Business.” ASU 2017-01 clarifies the definition of a business with the objective of adding guidance to assist entities with evaluating whether transactions should be accounted for as acquisitions (or disposals) of assets or businesses. The definition of a business affects many areas of accounting including acquisitions, disposals, goodwill, and consolidation. We adopted ASU 2017-01 on January 1, 2018, under the prospective method. The adoption of the standard’s definition of a business was followed for the Company’s two divestitures that occurred in the first quarter of fiscal year 2018. The divestitures would have been considered a business both before and after the adoption of the standard and, therefore, the provisions of ASU 2017-01 did not have a material effect on the Company’s consolidated financial statements. In November 2016, the FASB issued ASU 2016-18, “Statement of Cash Flows (Topic 230): Restricted Cash.” ASU 2016-18 will require a change during the period in the total of cash, cash equivalents, and amounts generally described as restricted cash or restricted cash equivalents to be included with cash and cash equivalents when reconciling the beginning-of-period and end-of-period total amounts shown on the statement of cash flows. We adopted ASU 2016-18 on January 1, 2018, under the retrospective method. The prior year statement of cash flows has been reclassified to conform with the standard. The impact of the adoption was not material to the Company. The adoption resulted in the Company presenting restricted cash activity on the Condensed Consolidated Statements of Cash Flows for each period presented. We consider all highly liquid investments with original maturities of three months or less to be cash and cash equivalents. Restricted cash represents cash that is restricted as to withdrawal or usage and consists primarily of 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 Condensed Consolidated Statements of Cash Flows. June 30, 2018 June 30, 2017 Cash and cash equivalents $ 35,556 $ 27,166 Restricted cash 284 1,150 Restricted cash included within deferred charges and other assets — 608 Total cash, cash equivalents and restricted cash $ 35,840 $ 28,924 In August 2016, the FASB issued ASU 2016-15, “Statement of Cash Flows (Topic 230): Classification of Certain Cash Receipts and Cash Payments.” ASU 2016-15 provides guidance on how certain cash receipts and cash payments are presented and classified in the statement of cash flows. We adopted ASU 2016-15 on January 1, 2018, under the retrospective method. The adoption will result in the reclassification of $1.0 million in 2016 from financing activity to investing activity within the Condensed Consolidated Statements of Cash Flows on the Company’s Annual Report on Form 10-K for the year ending December 31, 2018. In May 2014, the FASB issued ASU 2014-09, “Revenue From Contracts With Customers.” ASU 2014-09 supersedes nearly all existing revenue recognition principles under GAAP. The core principle of ASU 2014-09 is to recognize revenues when promised goods or services are transferred to customers in an amount that reflects the consideration an entity expects to be entitled to for those goods or services using a defined five-step process. In 2016, the FASB issued accounting standards updates to address implementation issues and to clarify the guidance for identifying performance obligations, licenses and determining if a company is the principal or agent in a revenue arrangement. We adopted ASU 2014-09 on January 1, 2018, under the modified retrospective method where the cumulative effect is recognized through retained earnings as of the date of adoption. Under the new standard, certain contract arrangements that were historically recognized over time under our previous policies will now be recognized at a point in time upon completion of the contracts. However, based on the Company’s evaluation of existing contracts that were not substantially complete as of January 1, 2018, the cumulative effect adjustment to the opening balance of retained earnings was not material. Within the Energy Solutions and Industrial Solutions Segments, a significant portion of the Company’s revenue is derived from fixed-price contracts. For each contract, we assess the goods and services promised to a customer and identify a performance obligation for each promised good or service that is distinct. The typical life of our contracts is generally less than 12 months and each contract generally contains only one performance obligation, to provide goods or services to the customer. We recognize revenue over time for the majority of our contracts within the Energy Solutions and Industrial Solutions Segments. Within the Fluid Handling Solutions Segment a significant portion of our revenue is primarily derived from sales of inventory product and is recognized at the point in time control passes to the customer, which occurs generally upon shipment of the product. The revenue streams within the Company are consistent with those disclosed for our reportable segments. For descriptions of our product offerings and segments, see Note 15 - Business Segment Information. For description of our updated revenue recognition policy, see Note 17 – Significant Accounting Policy Updates. Accounting Standards Yet to be Adopted In August 2017, the FASB issued ASU 2017-12, “Derivatives and Hedging (Topic 815): Targeted Improvements to Accounting for Hedging Activities.” ASU 2017-12 expands an entity’s ability to apply hedge accounting for nonfinancial and financial risk components and allow for a simplified approach for fair value hedging of interest rate risk. ASU 2017-12 eliminates the need to separately measure and report hedge ineffectiveness and generally requires the entire change in fair value of a hedging instrument to be presented in the same income statement line as the hedged item. Additionally, ASU 2017-12 simplifies the hedge documentation and effectiveness assessment under the previous guidance. The guidance is effective for annual periods, and interim periods within those annual periods, beginning after December 15, 2018. Early adoption is permitted. We plan to adopt the standard on January 1, 2019. We do not expect the adoption of this guidance to have a material impact on our consolidated financial statements. In February 2016, the FASB issued ASU 2016-02, “Leases.” ASU 2016-02 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. Leases will be classified as either finance or operating, with classification affecting the pattern of expense recognition in the income statement. For public companies, this guidance is effective for annual periods beginning after December 15, 2018. We currently expect to adopt ASU 2016-02 as of January 1, 2019, under the modified prospective method. Our evaluation of ASU 2016-02 is ongoing and not complete. The Company believes that the new standard will have a material impact on its consolidated balance sheet due to the recognition of ROU assets and liabilities for the Company’s operating leases but it will not have a material impact on its income statement or liquidity. We expect our accounting for capital leases to remain substantially unchanged. The ASU also will require disclosures to help investors and other financial statement users better understand the amount, timing and uncertainty of cash flows arising from leases. These disclosures include qualitative and quantitative requirements, providing additional information about the amounts recorded in the financial statements. Our leasing activity is primarily related to buildings and we have various sale-leaseback transactions. The Company is continuing to evaluate potential impacts to its consolidated financial statements.

Accounts Receivable

Accounts Receivable	6 Months Ended
	Jun. 30, 2018
Receivables [Abstract]
Accounts Receivable	3. Accounts Receivable (Table only in thousands) June 30, 2018 December 31, 2017 Contract receivables $ 63,990 $ 60,543 Trade receivables 8,040 11,603 Allowance for doubtful accounts (4,234 ) (4,156 ) Total accounts receivable $ 67,796 $ 67,990 Balances billed but not paid by customers under retainage provisions in contracts within the Condensed Consolidated Balance Sheets amounted to approximately $2.6 million and $2.5 million at June 30, 2018 and December 31, 2017, respectively. Retainage receivables on contracts in progress are generally collected within a year after contract completion. Bad debt expense was $0.5 million and $0.7 million for the three-month periods ended June 30, 2018 and 2017, respectively, and $0.6 million and $1.0 million for the six-month periods ended June 30, 2018 and 2017, respectively.

Costs and Estimated Earnings on

Costs and Estimated Earnings on Uncompleted Contracts	6 Months Ended
	Jun. 30, 2018
Text Block [Abstract]
Costs and Estimated Earnings on Uncompleted Contracts	4. Costs and Estimated Earnings on Uncompleted Contracts Our contracts have various lengths to completion ranging from a few days to several months. We anticipate that a majority of our current contracts will be completed within the next twelve months. A significant amount of our revenue within the Energy Solutions and Industrial Solutions Segments is recognized over a period of time as we perform under the contract because control of the work in process transfers continuously to the customer. The assets and liabilities recognized in association with these contracts are as follows: (Table only in thousands) June 30, 2018 December 31, 2017 Costs incurred on uncompleted contracts $ 161,184 $ 169,665 Estimated earnings 58,988 61,556 Total costs and estimated earnings on uncompleted contracts, gross 220,172 231,221 Less billings to date (208,324 ) (217,743 ) Total costs and estimated earnings on uncompleted contracts, net $ 11,848 $ 13,478 Included in the accompanying condensed consolidated balance sheets under the following captions: Costs and estimated earnings in excess of billings on uncompleted contracts $ 35,188 $ 33,947 Billings in excess of costs and estimated earnings on uncompleted contracts (23,340 ) (20,469 ) Total costs and estimated earnings on uncompleted contracts, net $ 11,848 $ 13,478 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. A provision of $0.2 million for estimated losses on uncompleted contracts was recognized as of June 30, 2018.

Inventories

Inventories	6 Months Ended
	Jun. 30, 2018
Inventory Disclosure [Abstract]
Inventories	5. Inventories (Table only in thousands) June 30, 2018 December 31, 2017 Raw materials $ 16,561 $ 18,444 Work in process 6,633 3,182 Finished goods 773 940 Obsolescence allowance (1,517 ) (1,597 ) Total inventories $ 22,450 $ 20,969 Amounts credited to the allowance for obsolete inventory and charged to cost of sales amounted to $0.1

Goodwill and Intangible Assets

Goodwill and Intangible Assets	6 Months Ended
	Jun. 30, 2018
Goodwill And Intangible Assets Disclosure [Abstract]
Goodwill and Intangible Assets	6. Goodwill and Intangible Assets (Table only in thousands) For the Six Months Ended June 30, 2018 Year ended December 31, 2017 Goodwill / Tradename Goodwill Tradename Goodwill Tradename Beginning balance $ 166,951 $ 19,691 $ 170,153 $ 22,042 Divestitures (14,317 ) (1,340 ) — — Impairment — — (4,443 ) (2,725 ) Foreign currency translation (263 ) (51 ) 1,241 374 $ 152,371 $ 18,300 $ 166,951 $ 19,691 As of June 30, 2018 As of December 31, 2017 (Table only in thousands) Intangible assets – finite life Cost Accum. Amort. Cost Accum. Amort. Technology $ 14,457 $ 8,553 $ 15,867 $ 8,609 Customer lists 72,978 36,328 77,497 35,024 Noncompetition agreements 1,118 809 1,118 698 Tradename 1,390 510 1,390 440 Foreign currency adjustments (1,583 ) (284 ) (1,214 ) (69 ) $ 88,360 $ 45,916 $ 94,658 $ 44,702 Activity for the six months ended June 30, 2018 and 2017 is as follows: (Table only in thousands) 2018 2017 Intangible assets – finite life, net at beginning of period $ 49,956 $ 60,728 Amortization expense (4,988 ) (5,772 ) Divestitures (2,372 ) — Foreign currency adjustments (152 ) 493 Intangible assets – finite life, net at end of period $ 42,444 $ 55,449 Amortization expense of finite life intangible assets was $2.4 million and $2.9 million for the three-month periods ended June 30, 2018 and 2017, respectively, and $5.0 million and $5.8 million for the six-month periods ended June 30, 2018 and 2017, respectively. Amortization over the next five years for finite life intangibles is expected to be $4.8 million for the remainder of 2018, $8.6 million in 2019, $6.9 million in 2020, $5.7 million in 2021, and $4.7 million in 2022. The Company did not identify any triggering events during the three-month period ended June 30, 2018 that would require an interim impairment assessment of goodwill or indefinite life intangible assets. The Company concluded there was no impairment of goodwill or indefinite life intangible assets during the three-month and six-month periods ended June 30, 2018.

Accounts Payable and Accrued Ex

Accounts Payable and Accrued Expenses	6 Months Ended
	Jun. 30, 2018
Payables And Accruals [Abstract]
Accounts Payable and Accrued Expenses	7. Accounts Payable and Accrued Expenses (Table only in thousands) June 30, 2018 December 31, 2017 Trade accounts payable, including due to subcontractors $ 53,075 $ 45,409 Compensation and related benefits 5,710 5,246 Current portion of earnout liability 1,198 2,989 Accrued warranty 3,456 4,464 Contract liabilities 5,743 1,676 Other accrued expenses 10,170 11,002 Total accounts payable and accrued expenses $ 79,352 $ 70,786 The activity in the Company’s current portion of earnout liability and long-term portion of earnout liability was as follows for the six months ended June 30, 2018 and 2017: (Table only in thousands) Energy Solutions Segment (a) Earnout accrued at December 31, 2017 $ 4,475 Compensation expense adjustment 222 Payment (2,050 ) Total earnout liability as of June 30, 2018 2,647 Less: current portion of earnout (1,198 ) Balance of long-term portion of earnout recorded in other liabilities at June 30, 2018 $ 1,449 (Table only in thousands) Energy Solutions Segment (a) Earnout accrued at December 31, 2016 $ 24,214 Fair value adjustment (1,755 ) Compensation expense adjustment 597 Payment (15,193 ) Foreign currency translation adjustment 523 Total earnout liability as of June 30, 2017 8,386 Less: current portion of earnout (6,970 ) Balance of long term portion of earnout recorded in other liabilities at June 30, 2017 $ 1,416 (a) The Fluid Handling Solutions and Industrial Solutions segments do not have any earnout arrangements associated with the segments

Senior Debt

Senior Debt	6 Months Ended
	Jun. 30, 2018
Debt Disclosure [Abstract]
Senior Debt	8. Senior debt Debt consisted of the following at June 30, 2018 and December 31, 2017: (Table only in thousands) June 30, 2018 December 31, 2017 Outstanding borrowings under Credit Facility (defined below). Term loan balance due upon maturity in September 2020. - Term loan $ 83,147 $ 113,903 - U.S. Dollar revolving loans — 1,000 - Unamortized debt discount (2,252 ) (2,834 ) Total outstanding borrowings under Credit Facility 80,895 112,069 Outstanding borrowings (U.S. dollar equivalent) under Aarding Facility (defined below) — 2,764 Total outstanding borrowings 80,895 114,833 Less: current portion — 11,296 Total debt, less current portion $ 80,895 $ 103,537 During the six-month period ended June 30, 2018, the Company made prepayments of $29.2 million on the outstanding balance of the term loan, in addition to the required payment of $1.6 million for a total repayment of $30.8 million on the outstanding balance of the term loan. Due to the additional prepayments made in 2018, there are no future current maturity payments due until the final scheduled principal payment of $83.1 million, which is due in September 2020. United States Debt As of June 30, 2018 and December 31, 2017, $21.8 million and $24.4 million of letters of credit were outstanding, respectively. Total unused credit availability under the Company’s senior secured term loan, senior secured U.S. dollar revolving loans with sub-facilities for letters of credit and swing-line loans and senior secured multi-currency revolving credit facility for U.S. dollar and specific foreign currency loans (collectively, the “Credit Facility”) was $58.2 million and $54.6 million at June 30, 2018 and December 31, 2017, respectively. Revolving loans may be borrowed, repaid and reborrowed until September 3, 2020, at which time all amounts borrowed pursuant to the Credit Facility must be repaid. The weighted average stated interest rate on outstanding borrowings was 4.89% and 4.08% at June 30, 2018 and December 31, 2017, respectively. In accordance with the Credit Facility terms, the Company entered into an interest rate swap to hedge against interest rate exposure related to a portion of the outstanding debt indexed to LIBOR market rates. The fair value of the interest rate swap was an asset of $ 0.7 “Deferred charges and other assets” The Company amended the Credit Facility as of October 31, 2017. The Credit Facility was amended to, among other things, (a) modify the calculation of Consolidated EBITDA and Consolidated Fixed Charges to exclude certain adjustments related to certain transactions, (b) modify the Consolidated Leverage Ratio covenant and (c) add a covenant restricting the amount of capital expenditures we may make in fiscal years 2018 and 2019. As a result of the amendment to the Credit Facility, the maximum Consolidated Leverage Ratio increased to 3.75 and will remain at this ratio through March 31, 2019, when it is set to decrease to 3.50 through September 30, 2019. The Consolidated Leverage Ratio will then decrease to 3.25, where it will remain until the end of the term of the Credit Facility. As of June 30, 2018 and December 31, 2017, the Company was in compliance with all related financial and other restrictive covenants under the Credit Facility. Foreign Debt A subsidiary of the Company located in the Netherlands has a Euro denominated facilities agreement with ING Bank N.V. (“Aarding Facility”) with a total borrowing capacity of $15.2 million.

Earnings and Dividends per Shar

Earnings and Dividends per Share	6 Months Ended
	Jun. 30, 2018
Earnings Per Share [Abstract]
Earnings and Dividends per Share	9. Earnings and Dividends per Share The computational components of basic and diluted earnings per share for the three-month and six-month periods ended June 30, 2018 and 2017 are below. For the Three Months Ended June 30, 2018 Numerator (Loss) Denominator (Shares) Per Share Amount Basic net loss and loss per share $ (901 ) 34,670 $ (0.03 ) Effect of dilutive securities: Common stock equivalents arising from stock options, restricted stock awards, and employee stock purchase plan — Diluted loss and loss per share $ (901 ) 34,670 $ (0.03 ) For the Three Months Ended June 30, 2017 Numerator (Income) Denominator (Shares) Per Share Amount Basic net income and earnings per share $ 5,486 34,474 $ 0.16 Effect of dilutive securities: Common stock equivalents arising from stock options, restricted stock awards, and employee stock purchase plan 333 Diluted earnings and earnings per share $ 5,486 34,807 $ 0.16 For the Six Months Ended June 30, 2018 Numerator (Income) Denominator (Shares) Per Share Amount Basic net income and earnings per share $ 4,862 34,632 $ 0.14 Effect of dilutive securities: Common stock equivalents arising from stock options, restricted stock awards, and employee stock purchase plan 83 Diluted earnings and earnings per share $ 4,862 34,715 $ 0.14 For the Six Months Ended June 30, 2017 Numerator (Income) Denominator (Shares) Per Share Amount Basic net loss and loss per share $ 5,524 34,345 $ 0.16 Effect of dilutive securities: Common stock equivalents arising from stock options, restricted stock awards, and employee stock purchase plan 341 Diluted loss and loss per share $ 5,524 34,686 $ 0.16 Options, restricted stock units and warrants included in the computation of diluted earnings per share are calculated using the treasury stock method. For the three-month periods ended June 30, 2018 and 2017, 0.6 million, and during the six-month periods ended June 30, 2018 and 2017, 0.6 million Once a restricted stock unit vests, it is included in the computation of weighted average shares outstanding for purposes of basic and diluted earnings per share.

Share-Based Compensation

Share-Based Compensation	6 Months Ended
	Jun. 30, 2018
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]
Share-Based Compensation	10. Share-Based Compensation The Company accounts for stock-based compensation in accordance with ASC Topic 718, “Compensation – Stock Compensation,” which requires the Company to recognize compensation expense for stock-based awards, measured at the fair value of the awards at the grant date. The Company recognized $0.8 million and $0.7 million of stock compensation related expense during the three-month periods ended June 30, 2018 and 2017, respectively, and $1.4 million and $0.7 million during the six-month periods ended June 30, 2018 and 2017, respectively. Share based compensation expense was lower in 2017 primarily due to a large amount of forfeitures related to the former Chief Executive Officer’s departure from the Company. The Company granted no options during the three and six-month periods ended June 30, 2018 and granted 128,000 options during the three and six-month periods ended June 30, 2017, respectively. The Company granted approximately 910,000 and 351,000 restricted stock units during the three-month periods ended June 30, 2018 and 2017, respectively, and approximately 930,000 and 405,000 restricted stock units during the six-month periods ended June 30, 2018 and 2017, respectively. The weighted-average fair value of restricted stock units was estimated at $5.10 and $9.87 The fair value of the stock-based awards granted is recorded as compensation expense on a straight-line basis over the vesting periods of the awards. There were approximately 8,000 and 282,000 options exercised during the six months ended June 30, 2018 and 2017, respectively. The Company received $28,000 and $1.1 million in cash from employees and non-employee directors exercising options during the six months ended June 30, 2018 and 2017, respectively. The intrinsic value of options exercised during the six months ended June 30, 2018 and 2017 was $19,860

Pension and Employee Benefit Pl

Pension and Employee Benefit Plans	6 Months Ended
	Jun. 30, 2018
Compensation And Retirement Disclosure [Abstract]
Pension and Employee Benefit Plans	11. Pension and Employee Benefit Plans We sponsor a non-contributory defined benefit pension plan for certain union employees. The plan is funded in accordance with the funding requirements of the Employee Retirement Income Security Act of 1974. We also sponsor a postretirement health care plan for office employees retired before January 1, 1990. The plan allowed retirees who attained the age of 65 to elect the type of coverage desired. We present service cost within cost of sales and selling and administrative expenses depending on where the relevant employees compensation costs are recorded, and we present other components of net periodic benefit cost (gain) within other expense, net on the Condensed Consolidated Statements of Operations. Retirement and health care plan expense is based on valuations performed by plan actuaries as of the beginning of each fiscal year. The components of the expense consisted of the following: (Table only in thousands) Three Months Ended June 30, Six Months Ended June 30, 2018 2017 2018 2017 Pension plan: Service cost $ — $ 101 $ — $ 214 Interest cost 298 329 595 657 Expected return on plan assets (378 ) (431 ) (756 ) (861 ) Amortization of net actuarial loss 59 57 119 113 Net periodic benefit cost (gain) $ (21 ) $ 56 $ (42 ) $ 123 Health care plan: Interest cost $ 1 $ 1 $ 1 $ 2 Amortization of loss 2 2 4 4 Net periodic benefit cost $ 3 $ 3 $ 5 $ 6 We made contributions to our defined benefit plans during the six months ended June 30, 2018 and 2017 totaling $0.6 million and $0.3 million, respectively. We anticipate $0.2 million and $24,000 of further contributions to fund the pension plan and the retiree health care plan, respectively, during the remainder of 2018.

Income Taxes

Income Taxes	6 Months Ended
	Jun. 30, 2018
Income Tax Disclosure [Abstract]
Income Taxes	12. Income Taxes We calculate our provision for federal, state and international income taxes based on current tax law. The Tax Act, which was enacted on December 22, 2017, included several key provisions impacting accounting for and reporting of income taxes. The most significant provisions, effective for periods beginning after December 31, 2017, are the global intangible low-taxed income (“GILTI”) provision and the reduction of the U.S. corporate statutory tax rate from 35% to 21%. We file income tax returns in various federal, state and local jurisdictions. Tax years from 2014 forward remain open for examination by Federal authorities. Tax years from 2012 forward remain open for all significant state and foreign authorities. We account for uncertain tax positions pursuant to ASC Topic 740, “Income Taxes.” As of June 30, 2018 and December 31, 2017, the liability for uncertain tax positions totaled approximately $0.9 million, which is included in Other liabilities on our Condensed Consolidated Balance Sheets. We recognize accrued interest related to uncertain tax positions and penalties, if any, in income tax expense within the Condensed Consolidated Statements of Operations. Certain of the Company’s undistributed earnings of our foreign subsidiaries are not permanently reinvested. Our cash needs for operating, investing and financing activities have increased in the U.S. Since foreign earnings have already been subject to U.S. income tax in 2017 as a result of the Tax Act, we intend to repatriate foreign-held cash as needed. As of June 30, 2018, and December 31, 2017 we have recorded deferred income taxes of approximately $0.6 million and zero, respectively, on the undistributed earnings of our foreign subsidiaries. This amount is attributable primarily to the foreign withholding taxes that would become payable should we decide to repatriate cash held in our foreign operations. We recognized the provisional tax impacts related to the deemed repatriation of foreign earnings and the benefit for the revaluation of deferred tax assets and liabilities during the year ended December 31, 2017. ASU 2018-05 allows a company to record a provisional amount when it does not have the necessary information available, prepared, or analyzed in reasonable detail to complete its accounting for the change in the tax law. We adjusted our provisional accounting for the impacts of Tax Reform as they relate to the repatriation of foreign cash. No other adjustments were made to these provisional amounts for the three-month and six-month periods ended June 30, 2018. We continue to review and evaluate the provisions of the Tax Act. This review could result in changes to the amounts we have provisionally recorded. We will complete our accounting for the tax effects of the Tax Act before the end of the one-year measurement period allowed by ASU 2018-05, which will be in the fourth quarter of 2018. The amounts recorded in 2018 to account for the impact of the Tax Act for periods beginning after December 31, 2017 are the Company’s best estimates based on the current data and guidance available. We have not yet determined our accounting policy election with respect to recording deferred taxes for basis differences related to the GILTI provisions or to continue to record as a period cost.

Financial Instruments

Financial Instruments	6 Months Ended
	Jun. 30, 2018
Investments All Other Investments [Abstract]
Financial Instruments	13. Financial Instruments Our financial instruments consist primarily of investments in cash and cash equivalents, receivables and certain other assets, foreign debt and accounts payable, which approximate fair value at June 30, 2018 and December 31, 2017, due to their short-term nature or variable, market-driven interest rates. The fair value of the debt issued under the Credit Facility was $83.1 million and $114.9 million at June 30, 2018 and December 31, 2017, respectively. The fair value of the note payable was $5.3 million at June 30, 2018 and December 31, 2017, respectively. In accordance with the terms of the Credit Facility, the Company entered into an interest rate swap on December 30, 2015 to hedge against interest rate exposure related to a portion of the outstanding debt indexed to LIBOR market rates. See Note 8 for further information regarding the interest rate swap. At June 30, 2018 and December 31, 2017, the Company had cash and cash equivalents of $35.6 million and $29.9 million, respectively, of which $22.6 million and $19.7 million, respectively, was held outside of the United States, principally in the Netherlands, United Kingdom, China, and Canada. Restricted cash is held by the Company to support letters of credit issued in foreign jurisdictions to support Company operations. The Company occasionally enters into letters of credit with durations in excess of one year.

Commitments and Contingencies -

Commitments and Contingencies - Legal Matters	6 Months Ended
	Jun. 30, 2018
Commitments And Contingencies Disclosure [Abstract]
Commitments and Contingencies - Legal Matters	14. Commitments and Contingencies – Legal Matters Asbestos cases Our subsidiary, Met-Pro Technologies LLC (“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 June 30, 2018 for cases involving asbestos-related claims were $2.9 million, of which, together with all legal fees other than corporate counsel expenses, $2.8 million has been paid by the Company’s insurers. The average cost per settled claim, excluding legal fees, was approximately $37,000. Based upon the most recent information available to the Company regarding such claims, there were a total of 203 cases pending against the Company as of June 30, 2018 (with Illinois, New York, Pennsylvania and West Virginia having the largest number of cases), as compared with 218 cases that were pending as of December 31, 2017. During the six months ended June 30, 2018, 53 new cases were filed against the Company, and the Company was dismissed from 29 cases and settled 39 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. Summary The Company is also a party to routine contract and employment-related litigation matters 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. In accordance with ASC 450, “Contingencies”, and related guidance, we record 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. We are not aware of pending claims or assessments, other than as described above, which may have a material adverse impact on our liquidity, financial position, results of operations, or cash flows.

Business Segment Information

Business Segment Information	6 Months Ended
	Jun. 30, 2018
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 market that the segment serves and presented in three reportable segments. During the first quarter of 2018, the Company finalized an overall assessment and recalibration of its strategy. As a part of this assessment and recalibration of this strategy, management determined that a realignment of the Company’s segments was necessary to better reflect the technologies and solutions we provide, and the end markets we serve. As a result of this realignment, the reportable segments of the Company have been renamed utilizing the nomenclature below. Furthermore, we reclassified the operating results of certain business units within the Energy Solutions and Industrial Solutions Segments to have their reportable segment more closely align with our strategy. Energy Solutions Segment Our Energy Solutions segment, formerly known as the Energy segment, improves air quality and solves fluid handling needs with market leading, fluid catalytic cracking (“FCC”) unit cyclones Industrial Solutions Segment Our Industrial Solutions segment, formerly known as the Environmental segment, improves air quality with a compelling solution set of air pollution control technologies that enable our customers to reduce their carbon footprint, lower energy consumption, minimize waste and meet compliance targets for toxic emissions, fumes, volatile organic compounds, process and industrial odors. With a powerful suite of products and solutions to address air quality needs in the industrial markets, our offerings include chemical and biological scrubbers, fabric filters and cartridge collectors, thermal and catalytic oxidation systems, cyclones, separators, gas absorbers and industrial ventilation systems. This segment also provides component parts for industrial air systems and provides cost effective alternatives to traditional duct components, as well as custom metal engineered fabrication services. These products and services are applicable to a wide variety of industries. Fluid Handling Solutions Segment Our Fluid Handling Solutions segment, formerly known as the Fluid Handling and Filtration segment, provides solutions for mission-critical applications to a wide variety of industries including, but not limited to, chemical, petrochemical, pharmaceutical, wastewater treatment, desalination, aquarium and aquaculture, plating and metal finishing, and food and beverage. To meet the needs of these markets, we design and manufacture high quality pumps and specialty filtration solutions including centrifugal pumps for corrosive, abrasive and high-temperature liquids, filter products for air and liquid filtration, precious metal recovery systems, carbonate precipitators, and technologically advanced air movement and exhaust systems. Interest income and expense are not included in the measure of segment profit reviewed by management. Income taxes are also not included in the measure of segment operating profit reviewed by management. The operating results of the segments are reviewed through to the “Income from operations” line on the Condensed Consolidated Statements of Operations. The financial segment information is presented in the following tables: Three Months Ended June 30, Six Months Ended June 30, (dollars in thousands) 2018 2017 2018 2017 Net Sales (less intra-, inter-segment sales) Energy Solutions Segment $ 51,136 $ 52,499 $ 91,109 $ 106,208 Industrial Solutions Segment 18,324 22,796 36,121 46,099 Fluid Handling Solutions Segment 11,791 18,348 27,999 34,164 Corporate and Other (1) (162 ) 227 — 50 Net sales $ 81,089 $ 93,870 $ 155,229 $ 186,521 (1) Includes adjustment for revenue on intercompany jobs. Three Months Ended June 30, Six Months Ended June 30, (dollars in thousands) 2018 2017 2018 2017 Income from Operations Energy Solutions Segment $ 5,901 $ 10,535 $ 9,525 $ 14,359 Industrial Solutions Segment 1,273 1,935 2,642 4,669 Fluid Handling Solutions Segment 2,182 4,148 5,392 7,457 Corporate and Other (2) (6,539 ) (6,935 ) (2,025 ) (14,782 ) Eliminations (236 ) (428 ) (822 ) (1,098 ) Income from operations $ 2,581 $ 9,255 $ 14,712 $ 10,605 (2) Includes gain on divestitures, net of selling costs, corporate compensation, professional services, information technology, executive transition expenses, acquisition and integration expenses, and other general and administrative corporate expenses. This figure excludes earnout expenses, which are recorded in the segment in which the expense occurs. See Note 7 for the earnout expenses by segment. Three Months Ended June 30, Six Months Ended June 30, (dollars in thousands) 2018 2017 2018 2017 Property and Equipment Additions Energy Solutions Segment $ 15 $ 116 $ 32 $ 352 Industrial Solutions Segment 90 31 165 40 Fluid Handling Solutions Segment 11 70 284 219 Corporate and Other 10 14 110 30 Property and equipment additions $ 126 $ 231 $ 591 $ 641 Three Months Ended June 30, Six Months Ended June 30, (dollars in thousands) 2018 2017 2018 2017 Depreciation and Amortization Energy Solutions Segment $ 2,190 $ 2,417 $ 4,348 $ 4,935 Industrial Solutions Segment 205 391 487 782 Fluid Handling Solutions Segment 1,002 1,197 1,996 2,395 Corporate and Other 62 25 125 56 Depreciation and amortization $ 3,459 $ 4,030 $ 6,956 $ 8,168 (dollars in thousands) June 30, 2018 December 31, 2017 Identifiable Assets Energy Solutions Segment $ 278,901 $ 258,218 Industrial Solutions Segment 56,352 66,723 Fluid Handling Solutions Segment 75,703 100,917 Corporate and Other (3) 10,445 12,691 Identifiable assets $ 421,401 $ 438,549 (3) Corporate assets primarily consist of cash and income tax related assets. (dollars in thousands) June 30, 2018 December 31, 2017 Goodwill Energy Solutions Segment $ 98,145 $ 98,408 Industrial Solutions Segment 22,419 22,419 Fluid Handling Solutions Segment 31,807 46,124 Goodwill $ 152,371 $ 166,951 Intra-segment and Inter-segment Revenues The Company has multiple divisions that sell to each other within segments (intra-segment sales) and between segments (inter-segment sales) as indicated in the following tables: Three Months Ended June 30, 2018 Less Inter-Segment Sales (dollars in thousands) Total Sales Intra- Segment Sales Industrial Energy Fluid Corp and Other Net Outside Customers Net Sales Energy Solutions Segment $ 53,322 $ (1,929 ) $ (252 ) $ — $ (5 ) $ — $ 51,136 Industrial Solutions Segment 19,670 (813 ) — (533 ) — — 18,324 Fluid Handling Solutions Segment 12,409 (295 ) (323 ) — — — 11,791 Corporate and Other (4) — — — — — (162 ) (162 ) Net Sales $ 85,401 $ (3,037 ) $ (575 ) $ (533 ) $ (5 ) $ (162 ) $ 81,089 Three Months Ended June 30, 2017 Less Inter-Segment Sales (dollars in thousands) Total Sales Intra- Segment Sales Industrial Energy Fluid Corp and Other Net Outside Customers Net Sales Energy Solutions Segment $ 55,338 $ (2,839 ) $ — $ — $ — $ — $ 52,499 Industrial Solutions Segment 23,635 (800 ) — — (39 ) — 22,796 Fluid Handling Solutions Segment 19,160 (539 ) (258 ) (15 ) — — 18,348 Corporate and Other (4) — — — — — 227 227 Net Sales $ 98,133 $ (4,178 ) $ (258 ) $ (15 ) $ (39 ) $ 227 $ 93,870 Six Months Ended June 30, 2018 Less Inter-Segment Sales (dollars in thousands) Total Sales Intra- Segment Sales Environmental Energy FHF Corp and Other Net Outside Customers Net Sales Engineered Equipment Segment $ 96,450 $ (4,398 ) $ (938 ) — $ (5 ) — $ 91,109 Air Quality Segment 38,398 (1,604 ) — (673 ) — — $ 36,121 Fluid Handling Solutions Segment 29,175 (809 ) (367 ) — — — $ 27,999 Corporate and Other (4) — — — — — — $ — Net Sales $ 164,023 $ (6,811 ) $ (1,305 ) $ (673 ) $ (5 ) $ — $ 155,229 Six Months Ended June 30, 2017 Less Inter-Segment Sales (dollars in thousands) Total Sales Intra- Segment Sales Environmental Energy FHF Corp and Other Net Outside Customers Net Sales Engineered Equipment Segment $ 111,377 $ (5,147 ) $ (22 ) — — — $ 106,208 Air Quality Segment 48,557 (1,690 ) — (729 ) (39 ) — $ 46,099 Fluid Handling Solutions Segment 35,852 (1,157 ) (422 ) (109 ) — — $ 34,164 Corporate and Other (4) — — — — — 50 $ 50 Net Sales $ 195,786 $ (7,994 ) $ (444 ) $ (838 ) $ (39 ) $ 50 $ 186,521 (4) Includes adjustment for revenue on intercompany jobs.

Divestitures

Divestitures	6 Months Ended
	Jun. 30, 2018
Discontinued Operations And Disposal Groups [Abstract]
Divestitures	16. Divestitures Strobic Air Corporation On March 30, 2018, the Company completed the sale of Strobic Air Corporation (“Strobic”) as part of its strategic decision to exit brands that do not align with the CECO portfolio to increase focus on better serving the energy and industrial solutions and fluid handling markets. The sales price was $28.5 million, subject to post-closing purchase price adjustments. The disposition resulted in an estimated gain of $6.9 million recorded in the first quarter of 2018, comprised of $27.9 million of net proceeds received as consideration after estimated post-closing purchase price adjustments less net assets disposed of $18.8 million and transaction costs of $2.2 million. The net assets disposed are primarily comprised of $13.0 million of goodwill, $2.3 million of definite-lived intangible assets and $1.2 million of indefinite-lived intangible assets allocated to the Strobic business. In fiscal year 2017, Strobic reported $17.7 million in net sales and $1.6 million in income from operations. Strobic results are included within income before income taxes in the Condensed Consolidated Statement of Operations and are reported within the Fluid Handling Solutions segment. The sale of Strobic does not constitute a significant strategic shift that will have a material impact on the Company’s ongoing operations and financial results. Keystone Filter On February 28, 2018, the Company completed the sale of the Keystone Filter brand (“Keystone”) as part of its strategic decision to exit brands that do not align with the CECO portfolio to increase focus on better serving energy and industrial solutions and fluid handling markets. The sales price was $7.5 million, subject to post-closing purchase price adjustments. The disposition resulted in an estimated gain of $4.3 million recorded in the first quarter of 2018, comprised of $7.2 million of net proceeds received as consideration after estimated post-closing purchase price adjustments less net assets disposed of $2.7 million and transaction costs of $0.2 million. As of June 30, 2018, there is consideration receivable from this divestiture of $1.9 million, which the Company expects to receive within fiscal year 2018. Keystone results are reported within the Fluid Handling Solutions segment.

Significant Accounting Policy U

Significant Accounting Policy Updates	6 Months Ended
	Jun. 30, 2018
Accounting Policies [Abstract]
Significant Accounting Policy Updates	17. Significant Accounting Policy Updates As described in Note 2 – New Financial Accounting Pronouncements, effective January 1, 2018, we adopted ASU 2014-09, which changed the way we recognize revenue for certain contracts. Accounting policies that were significantly affected by the adoption of ASU 2014-09 are discussed below. Revenue Recognition Energy Solutions and Industrial Solutions Segments Within the Energy Solutions and Industrial Solutions segments, a significant portion of our revenue is derived from fixed-price contracts. We account 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, we assess the goods and services promised to a customer and identify a performance obligation for each promised good or service that is distinct. The typical life of our contracts is generally less than 12 months and each contract generally contains only one performance obligation, to provide goods or services to the customer. We determine the transaction price for each contract based on the consideration we expect to receive for the products or services being provided under the contract. We recognize revenue as performance obligations are satisfied and the customer obtains control of the products and services. A significant amount of our revenue within the Energy Solutions and Industrial Solutions segments is recognized over a period of time as we perform 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. 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. 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. Fluid Handling Solutions Segments Within the Fluid Handling Solutions segment, a significant portion of our revenue is primarily derived from sales of inventory product and is recognized at the point in time control passes to the customer, which occurs generally upon shipment of the product. Payments vary by customer but are typically due within thirty days. 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. Point in Time Contract Assets and Contract Liabilities Contract assets for contracts where revenue is recognized at a point in time are costs incurred on a contract for which revenue has not been recognized. Contract assets are recorded in inventories in the Condensed Consolidated Balance Sheet. Contract liabilities relate to 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 recorded in accounts payable and accrued expenses in the Condensed Consolidated Balance Sheet. Contract liabilities are reduced when the associated revenue from the contract is recognized.

New Financial Accounting Pron24

New Financial Accounting Pronouncements (Policies)	6 Months Ended
	Jun. 30, 2018
Accounting Changes And Error Corrections [Abstract]
Accounting Standards Adopted in Fiscal 2018	Accounting Standards Adopted in Fiscal 2018 In March 2018, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update (“ASU”) 2018-05, “Income Taxes (Topic 740): Amendments to SEC Paragraphs Pursuant to SEC Staff Accounting Bulletin No. 118.” The standard relates to the accounting and disclosures around the issuance of the SEC’s Staff Accounting Bulletin No. 118, “Income Tax Accounting Implications of the Tax Cuts and Jobs Act” (“SAB 118”), which the Company has adopted. See Note 12 – Income Taxes for the disclosures related to this amended guidance. In February 2018, the FASB issued ASU No. 2018-02, “Income Statement — Reporting Comprehensive Income (Topic 220): Reclassification of Certain Tax Effects from Accumulated Other Comprehensive Income.” The standard allows for reclassification of stranded tax effects on items resulting from the Tax Cuts and Jobs Act (the “Tax Act”) from accumulated other comprehensive income to retained earnings. Tax effects unrelated to the Tax Act are released from accumulated other comprehensive income based on the nature of the underlying item. The Company early adopted the ASU in the first quarter of fiscal 2018, under the prospective method. As a result of the adoption, during the first quarter of fiscal 2018, accumulated loss in the Condensed Consolidated Balance Sheets increased by $1.2 million, with a corresponding decrease to accumulated other comprehensive loss in the Condensed Consolidated Balance Sheets due to the reduction in the corporate tax rate from 35% to 21%. See Note 12 — Income Taxes for additional information about the Tax Act. In May 2017, the FASB issued ASU 2017-09, “Compensation – Stock Compensation (Topic 718): Scope of Modification Accounting.” ASU 2017-09 clarifies when changes to the terms or conditions of a share-based payment award must be accounted for as a modification. The new guidance will reduce diversity in practice and result in fewer changes to the terms of an award being accounted for as a modification. Under ASU 2017-09, an entity will not apply modification accounting to a share-based payment award if the award’s fair value, vesting conditions and classification as an equity or liability instrument are the same immediately before and after the change. We adopted ASU 2017-09 on January 1, 2018, under the prospective method. The adoption had no impact on our consolidated financial statements as there were no events requiring management to evaluate for a potential modification to a share-based payment award. In March 2017, the FASB issued ASU 2017-07, “Compensation – Retirement Benefits (Topic 715): Improving the Presentation of Net Periodic Pension Cost and Net Periodic Postretirement Benefit Cost.” Under existing GAAP, an entity is required to present all components of net periodic pension cost and net periodic postretirement benefit cost aggregated as a net amount in the income statement, and this net amount may be capitalized as part of an asset where appropriate. ASU 2017-07 requires that an employer report the service cost component in the same line item or items as other compensation costs arising from services rendered by the pertinent employees during the period, and requires the other components of net periodic pension cost and net periodic postretirement benefit cost to be presented in the income statement separately from the service cost component and outside a subtotal of income from operations, if one is presented. Additionally, only the service cost component is eligible for capitalization, when applicable. We adopted ASU 2017-07 on January 1, 2018, under the retrospective method for the presentation of the service cost component and the other components of net periodic pension cost and net periodic postretirement benefit cost in the income statement and prospectively, on and after the effective date, for the capitalization of the service cost component of net periodic pension cost and net periodic postretirement benefit in assets. The adoption resulted in reclassification of other components of net periodic pension cost, other than service cost outside of operating income and the impact was not material. See Note 11 – Pension and Employee Benefit Plans for additional disclosures related to the adoption of the standard. In January 2017, the FASB issued ASU 2017-01, “Business Combinations (Topic 805): Clarifying the Definition of a Business.” ASU 2017-01 clarifies the definition of a business with the objective of adding guidance to assist entities with evaluating whether transactions should be accounted for as acquisitions (or disposals) of assets or businesses. The definition of a business affects many areas of accounting including acquisitions, disposals, goodwill, and consolidation. We adopted ASU 2017-01 on January 1, 2018, under the prospective method. The adoption of the standard’s definition of a business was followed for the Company’s two divestitures that occurred in the first quarter of fiscal year 2018. The divestitures would have been considered a business both before and after the adoption of the standard and, therefore, the provisions of ASU 2017-01 did not have a material effect on the Company’s consolidated financial statements. In November 2016, the FASB issued ASU 2016-18, “Statement of Cash Flows (Topic 230): Restricted Cash.” ASU 2016-18 will require a change during the period in the total of cash, cash equivalents, and amounts generally described as restricted cash or restricted cash equivalents to be included with cash and cash equivalents when reconciling the beginning-of-period and end-of-period total amounts shown on the statement of cash flows. We adopted ASU 2016-18 on January 1, 2018, under the retrospective method. The prior year statement of cash flows has been reclassified to conform with the standard. The impact of the adoption was not material to the Company. The adoption resulted in the Company presenting restricted cash activity on the Condensed Consolidated Statements of Cash Flows for each period presented. We consider all highly liquid investments with original maturities of three months or less to be cash and cash equivalents. Restricted cash represents cash that is restricted as to withdrawal or usage and consists primarily of 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 Condensed Consolidated Statements of Cash Flows. June 30, 2018 June 30, 2017 Cash and cash equivalents $ 35,556 $ 27,166 Restricted cash 284 1,150 Restricted cash included within deferred charges and other assets — 608 Total cash, cash equivalents and restricted cash $ 35,840 $ 28,924 In August 2016, the FASB issued ASU 2016-15, “Statement of Cash Flows (Topic 230): Classification of Certain Cash Receipts and Cash Payments.” ASU 2016-15 provides guidance on how certain cash receipts and cash payments are presented and classified in the statement of cash flows. We adopted ASU 2016-15 on January 1, 2018, under the retrospective method. The adoption will result in the reclassification of $1.0 million in 2016 from financing activity to investing activity within the Condensed Consolidated Statements of Cash Flows on the Company’s Annual Report on Form 10-K for the year ending December 31, 2018. In May 2014, the FASB issued ASU 2014-09, “Revenue From Contracts With Customers.” ASU 2014-09 supersedes nearly all existing revenue recognition principles under GAAP. The core principle of ASU 2014-09 is to recognize revenues when promised goods or services are transferred to customers in an amount that reflects the consideration an entity expects to be entitled to for those goods or services using a defined five-step process. In 2016, the FASB issued accounting standards updates to address implementation issues and to clarify the guidance for identifying performance obligations, licenses and determining if a company is the principal or agent in a revenue arrangement. We adopted ASU 2014-09 on January 1, 2018, under the modified retrospective method where the cumulative effect is recognized through retained earnings as of the date of adoption. Under the new standard, certain contract arrangements that were historically recognized over time under our previous policies will now be recognized at a point in time upon completion of the contracts. However, based on the Company’s evaluation of existing contracts that were not substantially complete as of January 1, 2018, the cumulative effect adjustment to the opening balance of retained earnings was not material. Within the Energy Solutions and Industrial Solutions Segments, a significant portion of the Company’s revenue is derived from fixed-price contracts. For each contract, we assess the goods and services promised to a customer and identify a performance obligation for each promised good or service that is distinct. The typical life of our contracts is generally less than 12 months and each contract generally contains only one performance obligation, to provide goods or services to the customer. We recognize revenue over time for the majority of our contracts within the Energy Solutions and Industrial Solutions Segments. Within the Fluid Handling Solutions Segment a significant portion of our revenue is primarily derived from sales of inventory product and is recognized at the point in time control passes to the customer, which occurs generally upon shipment of the product. The revenue streams within the Company are consistent with those disclosed for our reportable segments. For descriptions of our product offerings and segments, see Note 15 - Business Segment Information. For description of our updated revenue recognition policy, see Note 17 – Significant Accounting Policy Updates.
Accounting Standards Yet to be Adopted	Accounting Standards Yet to be Adopted In August 2017, the FASB issued ASU 2017-12, “Derivatives and Hedging (Topic 815): Targeted Improvements to Accounting for Hedging Activities.” ASU 2017-12 expands an entity’s ability to apply hedge accounting for nonfinancial and financial risk components and allow for a simplified approach for fair value hedging of interest rate risk. ASU 2017-12 eliminates the need to separately measure and report hedge ineffectiveness and generally requires the entire change in fair value of a hedging instrument to be presented in the same income statement line as the hedged item. Additionally, ASU 2017-12 simplifies the hedge documentation and effectiveness assessment under the previous guidance. The guidance is effective for annual periods, and interim periods within those annual periods, beginning after December 15, 2018. Early adoption is permitted. We plan to adopt the standard on January 1, 2019. We do not expect the adoption of this guidance to have a material impact on our consolidated financial statements. In February 2016, the FASB issued ASU 2016-02, “Leases.” ASU 2016-02 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. Leases will be classified as either finance or operating, with classification affecting the pattern of expense recognition in the income statement. For public companies, this guidance is effective for annual periods beginning after December 15, 2018. We currently expect to adopt ASU 2016-02 as of January 1, 2019, under the modified prospective method. Our evaluation of ASU 2016-02 is ongoing and not complete. The Company believes that the new standard will have a material impact on its consolidated balance sheet due to the recognition of ROU assets and liabilities for the Company’s operating leases but it will not have a material impact on its income statement or liquidity. We expect our accounting for capital leases to remain substantially unchanged. The ASU also will require disclosures to help investors and other financial statement users better understand the amount, timing and uncertainty of cash flows arising from leases. These disclosures include qualitative and quantitative requirements, providing additional information about the amounts recorded in the financial statements. Our leasing activity is primarily related to buildings and we have various sale-leaseback transactions. The Company is continuing to evaluate potential impacts to its consolidated financial statements.

Significant Accounting Policy25

Significant Accounting Policy Updates (Policies)	6 Months Ended
	Jun. 30, 2018
Accounting Policies [Abstract]
Revenue Recognition	Revenue Recognition Energy Solutions and Industrial Solutions Segments Within the Energy Solutions and Industrial Solutions segments, a significant portion of our revenue is derived from fixed-price contracts. We account 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, we assess the goods and services promised to a customer and identify a performance obligation for each promised good or service that is distinct. The typical life of our contracts is generally less than 12 months and each contract generally contains only one performance obligation, to provide goods or services to the customer. We determine the transaction price for each contract based on the consideration we expect to receive for the products or services being provided under the contract. We recognize revenue as performance obligations are satisfied and the customer obtains control of the products and services. A significant amount of our revenue within the Energy Solutions and Industrial Solutions segments is recognized over a period of time as we perform 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. 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. 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. Fluid Handling Solutions Segments Within the Fluid Handling Solutions segment, a significant portion of our revenue is primarily derived from sales of inventory product and is recognized at the point in time control passes to the customer, which occurs generally upon shipment of the product. Payments vary by customer but are typically due within thirty days. 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. Point in Time Contract Assets and Contract Liabilities Contract assets for contracts where revenue is recognized at a point in time are costs incurred on a contract for which revenue has not been recognized. Contract assets are recorded in inventories in the Condensed Consolidated Balance Sheet. Contract liabilities relate to 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 recorded in accounts payable and accrued expenses in the Condensed Consolidated Balance Sheet. Contract liabilities are reduced when the associated revenue from the contract is recognized.

New Financial Accounting Pron26

New Financial Accounting Pronouncements (Tables)	6 Months Ended
	Jun. 30, 2018
Accounting Changes And Error Corrections [Abstract]
Schedule of Reconciliation of Cash, Cash Equivalents and Restricted Cash Reported within Condensed Consolidated Statements of Cash Flows	The following table provides a reconciliation of cash, cash equivalents and restricted cash reported within the Condensed Consolidated Statements of Cash Flows. June 30, 2018 June 30, 2017 Cash and cash equivalents $ 35,556 $ 27,166 Restricted cash 284 1,150 Restricted cash included within deferred charges and other assets — 608 Total cash, cash equivalents and restricted cash $ 35,840 $ 28,924

Accounts Receivable (Tables)

Accounts Receivable (Tables)	6 Months Ended
	Jun. 30, 2018
Receivables [Abstract]
Summary of Accounts Receivable	(Table only in thousands) June 30, 2018 December 31, 2017 Contract receivables $ 63,990 $ 60,543 Trade receivables 8,040 11,603 Allowance for doubtful accounts (4,234 ) (4,156 ) Total accounts receivable $ 67,796 $ 67,990

Costs and Estimated Earnings 28

Costs and Estimated Earnings on Uncompleted Contracts (Tables)	6 Months Ended
	Jun. 30, 2018
Text Block [Abstract]
Costs and Estimated Earnings on Uncompleted Contracts	Our contracts have various lengths to completion ranging from a few days to several months. We anticipate that a majority of our current contracts will be completed within the next twelve months. (Table only in thousands) June 30, 2018 December 31, 2017 Costs incurred on uncompleted contracts $ 161,184 $ 169,665 Estimated earnings 58,988 61,556 Total costs and estimated earnings on uncompleted contracts, gross 220,172 231,221 Less billings to date (208,324 ) (217,743 ) Total costs and estimated earnings on uncompleted contracts, net $ 11,848 $ 13,478 Included in the accompanying condensed consolidated balance sheets under the following captions: Costs and estimated earnings in excess of billings on uncompleted contracts $ 35,188 $ 33,947 Billings in excess of costs and estimated earnings on uncompleted contracts (23,340 ) (20,469 ) Total costs and estimated earnings on uncompleted contracts, net $ 11,848 $ 13,478

Inventories (Tables)

Inventories (Tables)	6 Months Ended
	Jun. 30, 2018
Inventory Disclosure [Abstract]
Summary of Inventories	(Table only in thousands) June 30, 2018 December 31, 2017 Raw materials $ 16,561 $ 18,444 Work in process 6,633 3,182 Finished goods 773 940 Obsolescence allowance (1,517 ) (1,597 ) Total inventories $ 22,450 $ 20,969

Goodwill and Intangible Assets

Goodwill and Intangible Assets (Tables)	6 Months Ended
	Jun. 30, 2018
Goodwill And Intangible Assets Disclosure [Abstract]
Goodwill / Tradename	(Table only in thousands) For the Six Months Ended June 30, 2018 Year ended December 31, 2017 Goodwill / Tradename Goodwill Tradename Goodwill Tradename Beginning balance $ 166,951 $ 19,691 $ 170,153 $ 22,042 Divestitures (14,317 ) (1,340 ) — — Impairment — — (4,443 ) (2,725 ) Foreign currency translation (263 ) (51 ) 1,241 374 $ 152,371 $ 18,300 $ 166,951 $ 19,691
Intangible Assets - Finite Life	As of June 30, 2018 As of December 31, 2017 (Table only in thousands) Intangible assets – finite life Cost Accum. Amort. Cost Accum. Amort. Technology $ 14,457 $ 8,553 $ 15,867 $ 8,609 Customer lists 72,978 36,328 77,497 35,024 Noncompetition agreements 1,118 809 1,118 698 Tradename 1,390 510 1,390 440 Foreign currency adjustments (1,583 ) (284 ) (1,214 ) (69 ) $ 88,360 $ 45,916 $ 94,658 $ 44,702
Summary of Finite Lived Intangible Assets Activities	Activity for the six months ended June 30, 2018 and 2017 is as follows: (Table only in thousands) 2018 2017 Intangible assets – finite life, net at beginning of period $ 49,956 $ 60,728 Amortization expense (4,988 ) (5,772 ) Divestitures (2,372 ) — Foreign currency adjustments (152 ) 493 Intangible assets – finite life, net at end of period $ 42,444 $ 55,449

Accounts Payable and Accrued 31

Accounts Payable and Accrued Expenses (Tables)	6 Months Ended
	Jun. 30, 2018
Payables And Accruals [Abstract]
Summary of Accounts Payable and Accrued Expenses	(Table only in thousands) June 30, 2018 December 31, 2017 Trade accounts payable, including due to subcontractors $ 53,075 $ 45,409 Compensation and related benefits 5,710 5,246 Current portion of earnout liability 1,198 2,989 Accrued warranty 3,456 4,464 Contract liabilities 5,743 1,676 Other accrued expenses 10,170 11,002 Total accounts payable and accrued expenses $ 79,352 $ 70,786
Schedule of Current and Long term Portion of Earnout Liability	The activity in the Company’s current portion of earnout liability and long-term portion of earnout liability was as follows for the six months ended June 30, 2018 and 2017: (Table only in thousands) Energy Solutions Segment (a) Earnout accrued at December 31, 2017 $ 4,475 Compensation expense adjustment 222 Payment (2,050 ) Total earnout liability as of June 30, 2018 2,647 Less: current portion of earnout (1,198 ) Balance of long-term portion of earnout recorded in other liabilities at June 30, 2018 $ 1,449 (Table only in thousands) Energy Solutions Segment (a) Earnout accrued at December 31, 2016 $ 24,214 Fair value adjustment (1,755 ) Compensation expense adjustment 597 Payment (15,193 ) Foreign currency translation adjustment 523 Total earnout liability as of June 30, 2017 8,386 Less: current portion of earnout (6,970 ) Balance of long term portion of earnout recorded in other liabilities at June 30, 2017 $ 1,416 (a) The Fluid Handling Solutions and Industrial Solutions segments do not have any earnout arrangements associated with the segments

Senior Debt (Tables)

Senior Debt (Tables)	6 Months Ended
	Jun. 30, 2018
Debt Disclosure [Abstract]
Summary of Debt	Debt consisted of the following at June 30, 2018 and December 31, 2017: (Table only in thousands) June 30, 2018 December 31, 2017 Outstanding borrowings under Credit Facility (defined below). Term loan balance due upon maturity in September 2020. - Term loan $ 83,147 $ 113,903 - U.S. Dollar revolving loans — 1,000 - Unamortized debt discount (2,252 ) (2,834 ) Total outstanding borrowings under Credit Facility 80,895 112,069 Outstanding borrowings (U.S. dollar equivalent) under Aarding Facility (defined below) — 2,764 Total outstanding borrowings 80,895 114,833 Less: current portion — 11,296 Total debt, less current portion $ 80,895 $ 103,537

Earnings and Dividends per Sh33

Earnings and Dividends per Share (Tables)	6 Months Ended
	Jun. 30, 2018
Earnings Per Share [Abstract]
Number of Shares Outstanding for Calculation of Earnings Per Share	The computational components of basic and diluted earnings per share for the three-month and six-month periods ended June 30, 2018 and 2017 are below. For the Three Months Ended June 30, 2018 Numerator (Loss) Denominator (Shares) Per Share Amount Basic net loss and loss per share $ (901 ) 34,670 $ (0.03 ) Effect of dilutive securities: Common stock equivalents arising from stock options, restricted stock awards, and employee stock purchase plan — Diluted loss and loss per share $ (901 ) 34,670 $ (0.03 ) For the Three Months Ended June 30, 2017 Numerator (Income) Denominator (Shares) Per Share Amount Basic net income and earnings per share $ 5,486 34,474 $ 0.16 Effect of dilutive securities: Common stock equivalents arising from stock options, restricted stock awards, and employee stock purchase plan 333 Diluted earnings and earnings per share $ 5,486 34,807 $ 0.16 For the Six Months Ended June 30, 2018 Numerator (Income) Denominator (Shares) Per Share Amount Basic net income and earnings per share $ 4,862 34,632 $ 0.14 Effect of dilutive securities: Common stock equivalents arising from stock options, restricted stock awards, and employee stock purchase plan 83 Diluted earnings and earnings per share $ 4,862 34,715 $ 0.14 For the Six Months Ended June 30, 2017 Numerator (Income) Denominator (Shares) Per Share Amount Basic net loss and loss per share $ 5,524 34,345 $ 0.16 Effect of dilutive securities: Common stock equivalents arising from stock options, restricted stock awards, and employee stock purchase plan 341 Diluted loss and loss per share $ 5,524 34,686 $ 0.16

Pension and Employee Benefit 34

Pension and Employee Benefit Plans (Tables)	6 Months Ended
	Jun. 30, 2018
Compensation And Retirement Disclosure [Abstract]
Components of Pension and Employee Benefit Expenses	The components of the expense consisted of the following: (Table only in thousands) Three Months Ended June 30, Six Months Ended June 30, 2018 2017 2018 2017 Pension plan: Service cost $ — $ 101 $ — $ 214 Interest cost 298 329 595 657 Expected return on plan assets (378 ) (431 ) (756 ) (861 ) Amortization of net actuarial loss 59 57 119 113 Net periodic benefit cost (gain) $ (21 ) $ 56 $ (42 ) $ 123 Health care plan: Interest cost $ 1 $ 1 $ 1 $ 2 Amortization of loss 2 2 4 4 Net periodic benefit cost $ 3 $ 3 $ 5 $ 6

Business Segment Information (T

Business Segment Information (Tables)	6 Months Ended
	Jun. 30, 2018
Segment Reporting [Abstract]
Net Sales and Income from Operation by Business Segment	The financial segment information is presented in the following tables: Three Months Ended June 30, Six Months Ended June 30, (dollars in thousands) 2018 2017 2018 2017 Net Sales (less intra-, inter-segment sales) Energy Solutions Segment $ 51,136 $ 52,499 $ 91,109 $ 106,208 Industrial Solutions Segment 18,324 22,796 36,121 46,099 Fluid Handling Solutions Segment 11,791 18,348 27,999 34,164 Corporate and Other (1) (162 ) 227 — 50 Net sales $ 81,089 $ 93,870 $ 155,229 $ 186,521 (1) Includes adjustment for revenue on intercompany jobs. Three Months Ended June 30, Six Months Ended June 30, (dollars in thousands) 2018 2017 2018 2017 Income from Operations Energy Solutions Segment $ 5,901 $ 10,535 $ 9,525 $ 14,359 Industrial Solutions Segment 1,273 1,935 2,642 4,669 Fluid Handling Solutions Segment 2,182 4,148 5,392 7,457 Corporate and Other (2) (6,539 ) (6,935 ) (2,025 ) (14,782 ) Eliminations (236 ) (428 ) (822 ) (1,098 ) Income from operations $ 2,581 $ 9,255 $ 14,712 $ 10,605 (2) Includes gain on divestitures, net of selling costs, corporate compensation, professional services, information technology, executive transition expenses, acquisition and integration expenses, and other general and administrative corporate expenses. This figure excludes earnout expenses, which are recorded in the segment in which the expense occurs. See Note 7 for the earnout expenses by segment.
Property and Equipment Additions, Depreciation and Amortization and Identifiable Assets	Three Months Ended June 30, Six Months Ended June 30, (dollars in thousands) 2018 2017 2018 2017 Property and Equipment Additions Energy Solutions Segment $ 15 $ 116 $ 32 $ 352 Industrial Solutions Segment 90 31 165 40 Fluid Handling Solutions Segment 11 70 284 219 Corporate and Other 10 14 110 30 Property and equipment additions $ 126 $ 231 $ 591 $ 641 Three Months Ended June 30, Six Months Ended June 30, (dollars in thousands) 2018 2017 2018 2017 Depreciation and Amortization Energy Solutions Segment $ 2,190 $ 2,417 $ 4,348 $ 4,935 Industrial Solutions Segment 205 391 487 782 Fluid Handling Solutions Segment 1,002 1,197 1,996 2,395 Corporate and Other 62 25 125 56 Depreciation and amortization $ 3,459 $ 4,030 $ 6,956 $ 8,168 (dollars in thousands) June 30, 2018 December 31, 2017 Identifiable Assets Energy Solutions Segment $ 278,901 $ 258,218 Industrial Solutions Segment 56,352 66,723 Fluid Handling Solutions Segment 75,703 100,917 Corporate and Other (3) 10,445 12,691 Identifiable assets $ 421,401 $ 438,549 (3) Corporate assets primarily consist of cash and income tax related assets.
Goodwill	(dollars in thousands) June 30, 2018 December 31, 2017 Goodwill Energy Solutions Segment $ 98,145 $ 98,408 Industrial Solutions Segment 22,419 22,419 Fluid Handling Solutions Segment 31,807 46,124 Goodwill $ 152,371 $ 166,951
Intra-Segment and Inter-Segment Revenues	The Company has multiple divisions that sell to each other within segments (intra-segment sales) and between segments (inter-segment sales) as indicated in the following tables: Three Months Ended June 30, 2018 Less Inter-Segment Sales (dollars in thousands) Total Sales Intra- Segment Sales Industrial Energy Fluid Corp and Other Net Outside Customers Net Sales Energy Solutions Segment $ 53,322 $ (1,929 ) $ (252 ) $ — $ (5 ) $ — $ 51,136 Industrial Solutions Segment 19,670 (813 ) — (533 ) — — 18,324 Fluid Handling Solutions Segment 12,409 (295 ) (323 ) — — — 11,791 Corporate and Other (4) — — — — — (162 ) (162 ) Net Sales $ 85,401 $ (3,037 ) $ (575 ) $ (533 ) $ (5 ) $ (162 ) $ 81,089 Three Months Ended June 30, 2017 Less Inter-Segment Sales (dollars in thousands) Total Sales Intra- Segment Sales Industrial Energy Fluid Corp and Other Net Outside Customers Net Sales Energy Solutions Segment $ 55,338 $ (2,839 ) $ — $ — $ — $ — $ 52,499 Industrial Solutions Segment 23,635 (800 ) — — (39 ) — 22,796 Fluid Handling Solutions Segment 19,160 (539 ) (258 ) (15 ) — — 18,348 Corporate and Other (4) — — — — — 227 227 Net Sales $ 98,133 $ (4,178 ) $ (258 ) $ (15 ) $ (39 ) $ 227 $ 93,870 Six Months Ended June 30, 2018 Less Inter-Segment Sales (dollars in thousands) Total Sales Intra- Segment Sales Environmental Energy FHF Corp and Other Net Outside Customers Net Sales Engineered Equipment Segment $ 96,450 $ (4,398 ) $ (938 ) — $ (5 ) — $ 91,109 Air Quality Segment 38,398 (1,604 ) — (673 ) — — $ 36,121 Fluid Handling Solutions Segment 29,175 (809 ) (367 ) — — — $ 27,999 Corporate and Other (4) — — — — — — $ — Net Sales $ 164,023 $ (6,811 ) $ (1,305 ) $ (673 ) $ (5 ) $ — $ 155,229 Six Months Ended June 30, 2017 Less Inter-Segment Sales (dollars in thousands) Total Sales Intra- Segment Sales Environmental Energy FHF Corp and Other Net Outside Customers Net Sales Engineered Equipment Segment $ 111,377 $ (5,147 ) $ (22 ) — — — $ 106,208 Air Quality Segment 48,557 (1,690 ) — (729 ) (39 ) — $ 46,099 Fluid Handling Solutions Segment 35,852 (1,157 ) (422 ) (109 ) — — $ 34,164 Corporate and Other (4) — — — — — 50 $ 50 Net Sales $ 195,786 $ (7,994 ) $ (444 ) $ (838 ) $ (39 ) $ 50 $ 186,521 (4) Includes adjustment for revenue on intercompany jobs.

New Financial Accounting Pron36

New Financial Accounting Pronouncements - Additional Information (Detail) $ in Millions	3 Months Ended	6 Months Ended	12 Months Ended
	Mar. 31, 2018USD ($)Divestiture	Jun. 30, 2018Obligation	Dec. 31, 2018USD ($)	Dec. 31, 2017
New Accounting Pronouncements Or Change In Accounting Principle [Line Items]
U.S. federal corporate statutory tax rate		21.00%		35.00%
Cash equivalents and restricted cash, original maturities of highly liquid investments		3 months
ASU 2016-15 [Member] | Scenario Forecast [Member]
New Accounting Pronouncements Or Change In Accounting Principle [Line Items]
Reclassification of certain cash receipts and payments from financing activity to investing activity			$ 1
ASU 2014-09 [Member] | Energy Solutions and Industrial Solutions Segments [Member]
New Accounting Pronouncements Or Change In Accounting Principle [Line Items]
Revenue performance obligation, description of timing		The typical life of our 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
ASU 2014-09 [Member] | Maximum [Member] | Energy Solutions and Industrial Solutions Segments [Member]
New Accounting Pronouncements Or Change In Accounting Principle [Line Items]
Contracts life		12 months
ASU 2018-02 [Member]
New Accounting Pronouncements Or Change In Accounting Principle [Line Items]
Increase in Accumulated loss	$ 1.2
Decrease in accumulated other comprehensive loss	$ 1.2
ASU 2017-01 [Member]
New Accounting Pronouncements Or Change In Accounting Principle [Line Items]
Number of divestitures | Divestiture	2

New Financial Accounting Pron37

New Financial Accounting Pronouncements - Schedule of Reconciliation of Cash, Cash Equivalents and Restricted Cash Reported within Condensed Consolidated Statements of Cash Flows (Detail) - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017	Jun. 30, 2017	Dec. 31, 2016
New Accounting Pronouncements Or Change In Accounting Principle [Line Items]
Cash and cash equivalents	$ 35,556	$ 29,902
Total cash, cash equivalents and restricted cash	35,840	$ 30,659	$ 28,924	$ 48,006
ASU 2016-18 [Member]
New Accounting Pronouncements Or Change In Accounting Principle [Line Items]
Cash and cash equivalents	35,556		27,166
Restricted cash	284		1,150
Restricted cash included within deferred charges and other assets			608
Total cash, cash equivalents and restricted cash	$ 35,840		$ 28,924

Accounts Receivable - Summary o

Accounts Receivable - Summary of Accounts Receivable (Detail) - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017
Accounts, Notes, Loans and Financing Receivable [Line Items]
Contract receivables	$ 63,990	$ 60,543
Allowance for doubtful accounts	(4,234)	(4,156)
Total accounts receivable	67,796	67,990
Trade Accounts Receivable [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Trade receivables	$ 8,040	$ 11,603

Accounts Receivable - Additiona

Accounts Receivable - Additional Information (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017	Dec. 31, 2017
Receivables [Abstract]
Amount billed but not received under retainage provisions in contracts	$ 2,600		$ 2,600		$ 2,500
Retainage receivables on contracts period			1 year
Bad debt expense	$ 500	$ 700	$ 646	$ 960

Costs and Estimated Earnings 40

Costs and Estimated Earnings on Uncompleted Contracts - Costs and Estimated Earnings on Uncompleted Contracts (Detail) - USD ($) $ in Thousands	6 Months Ended	12 Months Ended
	Jun. 30, 2018	Dec. 31, 2017
Costs In Excess Of Billings On Uncompleted Contracts Or Programs [Abstract]
Costs incurred on uncompleted contracts	$ 161,184	$ 169,665
Estimated earnings	58,988	61,556
Total costs and estimated earnings on uncompleted contracts, gross	220,172	231,221
Less billings to date	(208,324)	(217,743)
Total costs and estimated earnings on uncompleted contracts, net	11,848	13,478
Included in the accompanying condensed consolidated balance sheets under the following captions:
Costs and estimated earnings in excess of billings on uncompleted contracts	35,188	33,947
Billings in excess of costs and estimated earnings on uncompleted contracts	(23,340)	(20,469)
Total costs and estimated earnings on uncompleted contracts, net	$ 11,848	$ 13,478

Costs and Estimated Earnings 41

Costs and Estimated Earnings on Uncompleted Contracts - Additional Information (Detail) - USD ($)	6 Months Ended	12 Months Ended
	Jun. 30, 2018	Dec. 31, 2017
Costs In Excess Of Billings On Uncompleted Contracts Or Programs [Abstract]
Provision for estimated losses on uncompleted contracts	$ 200,000	$ 0

Inventories - Summary of Invent

Inventories - Summary of Inventories (Detail) - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017
Inventory Net [Abstract]
Raw materials	$ 16,561	$ 18,444
Work in process	6,633	3,182
Finished goods	773	940
Obsolescence allowance	(1,517)	(1,597)
Total inventories	$ 22,450	$ 20,969

Inventories - Additional Inform

Inventories - Additional Information (Detail) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Inventory Disclosure [Abstract]
Amounts credited to the allowance for obsolete inventory	$ 0.1	$ 0.2	$ 0.4	$ 0.3

Goodwill and Intangible Asset44

Goodwill and Intangible Assets - Goodwill / Tradename (Detail) - USD ($) $ in Thousands	6 Months Ended	12 Months Ended
	Jun. 30, 2018	Dec. 31, 2017
Goodwill And Intangible Assets Disclosure [Abstract]
Goodwill, beginning balance	$ 166,951	$ 170,153
Goodwill, divestitures	(14,317)
Goodwill, impairment		(4,443)
Goodwill, foreign currency translation	(263)	1,241
Goodwill, ending balance	152,371	166,951
Tradename, beginning balance	19,691	22,042
Tradename, divestitures	(1,340)
Tradename, impairment		(2,725)
Tradename, foreign currency translation	(51)	374
Tradename, ending balance	$ 18,300	$ 19,691

Goodwill and Intangible Asset45

Goodwill and Intangible Assets - Intangible Assets - Finite Life (Detail) - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017
Finite-Lived Intangible Assets [Line Items]
Cost	$ 88,360	$ 94,658
Accumulated Amortization	45,916	44,702
Technology [Member]
Finite-Lived Intangible Assets [Line Items]
Cost	14,457	15,867
Accumulated Amortization	8,553	8,609
Customer Lists [Member]
Finite-Lived Intangible Assets [Line Items]
Cost	72,978	77,497
Accumulated Amortization	36,328	35,024
Non-compete Agreements [Member]
Finite-Lived Intangible Assets [Line Items]
Cost	1,118	1,118
Accumulated Amortization	809	698
Tradename [Member]
Finite-Lived Intangible Assets [Line Items]
Cost	1,390	1,390
Accumulated Amortization	510	440
Foreign Currency Adjustments [Member]
Finite-Lived Intangible Assets [Line Items]
Cost	(1,583)	(1,214)
Accumulated Amortization	$ (284)	$ (69)

Goodwill and Intangible Asset46

Goodwill and Intangible Assets - Finite Lived Intangible Assets Amortization Expense (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Goodwill And Intangible Assets Disclosure [Abstract]
Intangible assets – finite life, net at beginning of period			$ 49,956	$ 60,728
Amortization expense	$ (2,400)	$ (2,900)	(4,988)	(5,772)
Divestitures			(2,372)
Foreign currency adjustments			(152)	493
Intangible assets – finite life, net at end of period	$ 42,444	$ 55,449	$ 42,444	$ 55,449

Goodwill and Intangible Asset47

Goodwill and Intangible Assets - Additional Information (Detail) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Goodwill And Intangible Assets Disclosure [Abstract]
Amortization expense of finite life intangible assets	$ 2,400,000	$ 2,900,000	$ 4,988,000	$ 5,772,000
Amortization expense of finite life intangibles for 2018	4,800,000		4,800,000
Amortization expense of finite life intangibles for 2019	8,600,000		8,600,000
Amortization expense of finite life intangibles for 2020	6,900,000		6,900,000
Amortization expense of finite life intangibles for 2021	5,700,000		5,700,000
Amortization expense of finite life intangibles for 2022	4,700,000		4,700,000
Goodwill or indefinite life intangible asset charges	$ 0		$ 0

Accounts Payable and Accrued 48

Accounts Payable and Accrued Expenses - Summary of Accounts Payable and Accrued Expenses (Detail) - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017
Payables And Accruals [Abstract]
Trade accounts payable, including due to subcontractors	$ 53,075	$ 45,409
Compensation and related benefits	5,710	5,246
Current portion of earnout liability	1,198	2,989
Accrued warranty	3,456	4,464
Contract liabilities	5,743	1,676
Other accrued expenses	10,170	11,002
Total accounts payable and accrued expenses	$ 79,352	$ 70,786

Accounts Payable and Accrued 49

Accounts Payable and Accrued Expenses - Summary of Current Portion of Earnout Liabilities and Long term Portion of Earnout Liability (Details) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Dec. 31, 2017
Business Acquisition Contingent Consideration [Line Items]
Fair value adjustment		$ (1,755)
Less: current portion of earnout	$ (1,198)		$ (2,989)
Energy Solutions Segment [Member]
Business Acquisition Contingent Consideration [Line Items]
Earnout accrued at beginning of period	4,475	24,214
Fair value adjustment		(1,755)
Compensation expense adjustment	222	597
Payment	(2,050)	(15,193)
Foreign currency translation adjustment		523
Total earnout liability at end of period	2,647	8,386
Less: current portion of earnout	(1,198)	(6,970)
Balance of long term portion of earnout recorded in other liabilities at end of period	$ 1,449	$ 1,416

Senior Debt - Summary of Debt (

Senior Debt - Summary of Debt (Detail) - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017
Debt Instrument [Line Items]
Total outstanding borrowings	$ 80,895	$ 114,833
Less: current portion		11,296
Total debt, less current portion	80,895	103,537
Term Loan [Member]
Debt Instrument [Line Items]
Total outstanding borrowings	83,147	113,903
US Dollar Borrowings [Member] | Term Loan [Member]
Debt Instrument [Line Items]
Total outstanding borrowings	80,895	112,069
US Dollar Borrowings [Member] | U.S. Dollar Revolving Loans [Member]
Debt Instrument [Line Items]
Total outstanding borrowings under Credit Facility		1,000
Term Debt [Member]
Debt Instrument [Line Items]
Unamortized debt discount	$ (2,252)	(2,834)
Aarding Thermal Acoustics B.V. ("Aarding") [Member] | US Dollar Borrowings [Member]
Debt Instrument [Line Items]
Total outstanding borrowings		$ 2,764

Senior Debt - Summary of Debt51

Senior Debt - Summary of Debt (Parenthetical) (Detail)	6 Months Ended
	Jun. 30, 2018
Term Loan [Member]
Debt Instrument [Line Items]
Term loans, year of maturity	2020-09

Senior Debt - Additional Inform

Senior Debt - Additional Information (Detail) - USD ($)	Oct. 31, 2017	Jun. 30, 2018	Jun. 30, 2017	Sep. 30, 2019	Mar. 31, 2019	Dec. 31, 2017
Line Of Credit Facility [Line Items]
Prepayment of outstanding debt		$ 29,200,000
Scheduled payments of debt		1,600,000
Repayments of debt		30,756,000	$ 7,656,000
Final scheduled principal payment due in September 2020		$ 83,100,000
Weighted average stated interest rate on outstanding borrowings		4.89%				4.08%
Interest rate swap, fair value, asset		$ 700,000				$ 300,000
Credit facility, date of amendment	Oct. 31, 2017
Maximum consolidated leverage ratio	375.00%
ING Bank N.V. ("Aarding") [Member]
Line Of Credit Facility [Line Items]
Total borrowing capacity		15,200,000
ING Bank N.V. ("Aarding") [Member] | Bank Overdrafts [Member]
Line Of Credit Facility [Line Items]
Aggregate principal amount outstanding under the credit facilities		0				2,800,000
Scenario Forecast [Member]
Line Of Credit Facility [Line Items]
Maximum consolidated leverage ratio				325.00%	350.00%
Credit Agreement [Member]
Line Of Credit Facility [Line Items]
Unused credit availability under credit facility		58,200,000				54,600,000
Letters of Credit [Member]
Line Of Credit Facility [Line Items]
Aggregate principal amount outstanding under the credit facilities		21,800,000				24,400,000
Bank Guarantee Facility [Member] | ING Bank N.V. ("Aarding") [Member]
Line Of Credit Facility [Line Items]
Aggregate principal amount outstanding under the credit facilities		$ 8,700,000				$ 3,900,000

Earnings and Dividends per Sh53

Earnings and Dividends per Share - Number of Shares Outstanding for Calculation of Earnings Per Share (Detail) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Earnings Per Share [Abstract]
Basic net (loss) income and (loss) earnings per share, Numerator (Loss) Income	$ (901)	$ 5,486	$ 4,862	$ 5,524
Diluted (loss) earnings and (loss) earnings per share, Numerator (Loss) Income	$ (901)	$ 5,486	$ 4,862	$ 5,524
Basic net (loss) income and (loss) earnings per share, Denomiator (Shares)	34,669,810	34,473,688	34,631,519	34,345,317
Common stock equivalents arising from stock options, restricted stock awards, and employee stock purchase plan, Denominator (Shares)		333,000	83,000	341,000
Diluted (loss) earnings and (loss) earnings per share, Denominator (Shares)	34,669,810	34,806,808	34,715,141	34,685,687
Basic net (loss) income and (loss) earnings per share, Per Share Amount	$ (0.03)	$ 0.16	$ 0.14	$ 0.16
Diluted (loss) earnings and (loss) earnings per share, Per Share Amount	$ (0.03)	$ 0.16	$ 0.14	$ 0.16

Earnings and Dividends per Sh54

Earnings and Dividends per Share - Additional Information (Detail) - shares shares in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Earnings And Dividends Per Share [Abstract]
Shares not included in computation of diluted Earning per share	0.6	0.6	0.6	0.7

Share-Based Compensation - Addi

Share-Based Compensation - Additional Information (Detail) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Recognized share-based compensation awards	$ 800,000	$ 700,000	$ 1,400,000	$ 700,000
Number of stock option granted	0	128,000	0	128,000
Cash received from employees and non-employee directors stock option exercised			$ 28,000	$ 1,100,000
Intrinsic value of option exercised			$ 19,860	$ 1,800,000
Number of options exercised			8,000	282,000
Restricted Stock Units [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of restricted stock awards granted	910,000	351,000	930,000	405,000
Weighted-average fair value of restricted stock unit granted			$ 5.10	$ 9.87

Pension and Employee Benefit 56

Pension and Employee Benefit Plans - Components of Pension and Employee Benefit Expenses (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Pension Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Service cost		$ 101		$ 214
Interest cost	$ 298	329	$ 595	657
Expected return on plan assets	(378)	(431)	(756)	(861)
Amortization of net actuarial loss	59	57	119	113
Net periodic benefit cost (gain)	(21)	56	(42)	123
Health Care Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Interest cost	1	1	1	2
Amortization of loss	2	2	4	4
Net periodic benefit cost (gain)	$ 3	$ 3	$ 5	$ 6

Pension and Employee Benefit 57

Pension and Employee Benefit Plans - Additional Information (Detail) - USD ($)	6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Dec. 31, 2017
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan contributions	$ 600,000	$ 300,000
Unfunded liability plans	9,100,000		$ 9,600,000
Pension Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Anticipated contribution to fund the pension plan during the reminder of the fiscal year	200,000
Health Care Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Anticipated contribution to fund the pension plan during the reminder of the fiscal year	$ 24,000

Income Taxes - Additional Infor

Income Taxes - Additional Information (Detail) - USD ($) $ in Thousands	6 Months Ended		12 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Dec. 31, 2017
Income Taxes [Line Items]
U.S. federal corporate statutory tax rate	21.00%		35.00%
Liability for uncertain tax positions totaled	$ 900		$ 900
Deferred income tax expense	(744)	$ (46)
Foreign Subsidiaries [Member]
Income Taxes [Line Items]
Deferred income tax expense	$ 600		$ 0

Financial Instruments - Additio

Financial Instruments - Additional Information (Detail) - USD ($) $ in Thousands	6 Months Ended	12 Months Ended
	Jun. 30, 2018	Dec. 31, 2017
Fair Value Of Financial Instruments [Line Items]
Fair value of note payable	$ 5,300	$ 5,300
Cash and cash equivalents	35,556	29,902
Cash held outside United States, principally in Netherlands, United Kingdom, China, and Canada	22,600	19,700
Credit Facility [Member]
Fair Value Of Financial Instruments [Line Items]
Fair value of debt issued	$ 83,100	$ 114,900

Commitments and Contingencies60

Commitments and Contingencies - Legal Matters - Additional Information (Detail)	6 Months Ended	198 Months Ended
	Jun. 30, 2018USD ($)Case	Jun. 30, 2018USD ($)Case	Dec. 31, 2017Case
Commitments And Contingencies Disclosure [Abstract]
Cumulative settlement payments for cases involving asbestos-related claims | $		$ 2,900,000
Cumulative settlement payments made for cases involving asbestos-related claims with all legal fees other than corporate counsel expenses | $		2,800,000
Average cost per settled claim excluding legal fees | $	$ 37,000	$ 37,000
Number of claims pending	203	203	218
Number of new cases filed	53
Number of cases dismissed	29
Number of cases settled	39
Assessment regarding Loss contingency impact Description	We are not aware of pending claims or assessments, other than as described above, which may have a material adverse impact on our liquidity, financial position, results of operations, or cash flows.

Business Segment Information -

Business Segment Information - Additional Information (Detail)	6 Months Ended
	Jun. 30, 2018Segment
CECO Group, Inc. [Member]
Segment Reporting Information [Line Items]
Number of reportable segments	3

Business Segment Information 62

Business Segment Information - Net Sales and Income from Operation by Business Segment (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Segment Reporting Information [Line Items]
Net sales	$ 81,089	$ 93,870	$ 155,229	$ 186,521
Income from Operations	2,581	9,255	14,712	10,605
Energy Solutions Segment [Member]
Segment Reporting Information [Line Items]
Net sales	51,136	52,499	91,109	106,208
Income from Operations	5,901	10,535	9,525	14,359
Industrial Solutions Segment [Member]
Segment Reporting Information [Line Items]
Net sales	18,324	22,796	36,121	46,099
Income from Operations	1,273	1,935	2,642	4,669
Fluid Handling Solutions Segment [Member]
Segment Reporting Information [Line Items]
Net sales	11,791	18,348	27,999	34,164
Income from Operations	2,182	4,148	5,392	7,457
Corporate and Other [Member]
Segment Reporting Information [Line Items]
Net sales	(162)	227		50
Income from Operations	(6,539)	(6,935)	(2,025)	(14,782)
Inter-segment Elimination [Member]
Segment Reporting Information [Line Items]
Income from Operations	$ (236)	$ (428)	$ (822)	$ (1,098)

Business Segment Information 63

Business Segment Information - Property and Equipment Additions, Depreciation and Amortization and Identifiable Assets (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017	Dec. 31, 2017
Segment Reporting Information [Line Items]
Property and equipment additions	$ 126	$ 231	$ 591	$ 641
Depreciation and amortization	3,459	4,030	6,956	8,168
Identifiable Assets	421,401		421,401		$ 438,549
Energy Solutions Segment [Member]
Segment Reporting Information [Line Items]
Property and equipment additions	15	116	32	352
Depreciation and amortization	2,190	2,417	4,348	4,935
Identifiable Assets	278,901		278,901		258,218
Industrial Solutions Segment [Member]
Segment Reporting Information [Line Items]
Property and equipment additions	90	31	165	40
Depreciation and amortization	205	391	487	782
Identifiable Assets	56,352		56,352		66,723
Fluid Handling Solutions Segment [Member]
Segment Reporting Information [Line Items]
Property and equipment additions	11	70	284	219
Depreciation and amortization	1,002	1,197	1,996	2,395
Identifiable Assets	75,703		75,703		100,917
Corporate and Other [Member]
Segment Reporting Information [Line Items]
Property and equipment additions	10	14	110	30
Depreciation and amortization	62	$ 25	125	$ 56
Identifiable Assets	$ 10,445		$ 10,445		$ 12,691

Business Segment Information 64

Business Segment Information - Goodwill (Detail) - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017	Dec. 31, 2016
Segment Reporting Information [Line Items]
Goodwill	$ 152,371	$ 166,951	$ 170,153
Energy Solutions Segment [Member]
Segment Reporting Information [Line Items]
Goodwill	98,145	98,408
Industrial Solutions Segment [Member]
Segment Reporting Information [Line Items]
Goodwill	22,419	22,419
Fluid Handling Solutions Segment [Member]
Segment Reporting Information [Line Items]
Goodwill	$ 31,807	$ 46,124

Business Segment Information 65

Business Segment Information - Intra-Segment and Inter-Segment Revenues (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Segment Reporting Information [Line Items]
Net sales	$ 81,089	$ 93,870	$ 155,229	$ 186,521
Energy Solutions Segment [Member]
Segment Reporting Information [Line Items]
Net sales	51,136	52,499	91,109	106,208
Industrial Solutions Segment [Member]
Segment Reporting Information [Line Items]
Net sales	18,324	22,796	36,121	46,099
Fluid Handling Solutions Segment [Member]
Segment Reporting Information [Line Items]
Net sales	11,791	18,348	27,999	34,164
Corporate and Other [Member]
Segment Reporting Information [Line Items]
Net sales	(162)	227		50
Engineered Equipment Segment [Member]
Segment Reporting Information [Line Items]
Net sales			91,109	106,208
Air Quality Segment [Member]
Segment Reporting Information [Line Items]
Net sales			36,121	46,099
Intra - Segment Sales [Member]
Segment Reporting Information [Line Items]
Net sales	(3,037)	(4,178)	(6,811)	(7,994)
Intra - Segment Sales [Member] | Energy Solutions Segment [Member]
Segment Reporting Information [Line Items]
Net sales	(1,929)	(2,839)
Intra - Segment Sales [Member] | Industrial Solutions Segment [Member]
Segment Reporting Information [Line Items]
Net sales	(813)	(800)
Intra - Segment Sales [Member] | Fluid Handling Solutions Segment [Member]
Segment Reporting Information [Line Items]
Net sales	(295)	(539)	(809)	(1,157)
Intra - Segment Sales [Member] | Engineered Equipment Segment [Member]
Segment Reporting Information [Line Items]
Net sales			(4,398)	(5,147)
Intra - Segment Sales [Member] | Air Quality Segment [Member]
Segment Reporting Information [Line Items]
Net sales			(1,604)	(1,690)
Operating Segments [Member]
Segment Reporting Information [Line Items]
Net sales	85,401	98,133	164,023	195,786
Operating Segments [Member] | Energy Solutions Segment [Member]
Segment Reporting Information [Line Items]
Net sales	53,322	55,338
Operating Segments [Member] | Industrial Solutions Segment [Member]
Segment Reporting Information [Line Items]
Net sales	19,670	23,635
Operating Segments [Member] | Fluid Handling Solutions Segment [Member]
Segment Reporting Information [Line Items]
Net sales	12,409	19,160	29,175	35,852
Operating Segments [Member] | Engineered Equipment Segment [Member]
Segment Reporting Information [Line Items]
Net sales			96,450	111,377
Operating Segments [Member] | Air Quality Segment [Member]
Segment Reporting Information [Line Items]
Net sales			38,398	48,557
Inter-segment Elimination [Member] | Industrial Inter-Segment Sales [Member]
Segment Reporting Information [Line Items]
Net sales	(575)	(258)
Inter-segment Elimination [Member] | Energy Inter-Segment Sales [Member]
Segment Reporting Information [Line Items]
Net sales	(533)	(15)	(673)	(838)
Inter-segment Elimination [Member] | Fluid Handling Filtration Inter-Segment Sales [Member]
Segment Reporting Information [Line Items]
Net sales	(5)	(39)	(5)	(39)
Inter-segment Elimination [Member] | Corporate And Other Inter-Segment Sales [Member]
Segment Reporting Information [Line Items]
Net sales	(162)	227		50
Inter-segment Elimination [Member] | Environmental Inter-Segment Sales [Member]
Segment Reporting Information [Line Items]
Net sales			(1,305)	(444)
Inter-segment Elimination [Member] | Energy Solutions Segment [Member] | Industrial Inter-Segment Sales [Member]
Segment Reporting Information [Line Items]
Net sales	(252)
Inter-segment Elimination [Member] | Energy Solutions Segment [Member] | Fluid Handling Filtration Inter-Segment Sales [Member]
Segment Reporting Information [Line Items]
Net sales	(5)
Inter-segment Elimination [Member] | Industrial Solutions Segment [Member] | Energy Inter-Segment Sales [Member]
Segment Reporting Information [Line Items]
Net sales	(533)
Inter-segment Elimination [Member] | Industrial Solutions Segment [Member] | Fluid Handling Filtration Inter-Segment Sales [Member]
Segment Reporting Information [Line Items]
Net sales		(39)
Inter-segment Elimination [Member] | Fluid Handling Solutions Segment [Member] | Industrial Inter-Segment Sales [Member]
Segment Reporting Information [Line Items]
Net sales	(323)	(258)
Inter-segment Elimination [Member] | Fluid Handling Solutions Segment [Member] | Energy Inter-Segment Sales [Member]
Segment Reporting Information [Line Items]
Net sales		(15)		(109)
Inter-segment Elimination [Member] | Fluid Handling Solutions Segment [Member] | Environmental Inter-Segment Sales [Member]
Segment Reporting Information [Line Items]
Net sales			(367)	(422)
Inter-segment Elimination [Member] | Corporate and Other [Member] | Corporate And Other Inter-Segment Sales [Member]
Segment Reporting Information [Line Items]
Net sales	$ (162)	$ 227		50
Inter-segment Elimination [Member] | Engineered Equipment Segment [Member] | Fluid Handling Filtration Inter-Segment Sales [Member]
Segment Reporting Information [Line Items]
Net sales			(5)
Inter-segment Elimination [Member] | Engineered Equipment Segment [Member] | Environmental Inter-Segment Sales [Member]
Segment Reporting Information [Line Items]
Net sales			(938)	(22)
Inter-segment Elimination [Member] | Air Quality Segment [Member] | Energy Inter-Segment Sales [Member]
Segment Reporting Information [Line Items]
Net sales			$ (673)	(729)
Inter-segment Elimination [Member] | Air Quality Segment [Member] | Fluid Handling Filtration Inter-Segment Sales [Member]
Segment Reporting Information [Line Items]
Net sales				$ (39)

Divestitures - Additional Infor

Divestitures - Additional Information (Detail) - USD ($) $ in Thousands	Mar. 30, 2018	Feb. 28, 2018	Jun. 30, 2018	Mar. 31, 2018	Jun. 30, 2018	Dec. 31, 2017	Dec. 31, 2018
Income Statement Balance Sheet And Additional Disclosures By Disposal Groups Including Discontinued Operations [Line Items]
Estimated gain on disposal			$ (73)		$ 11,104
Strobic Air Corporation [Member]
Income Statement Balance Sheet And Additional Disclosures By Disposal Groups Including Discontinued Operations [Line Items]
Sale price, subject to post-closing purchase price adjustments	$ 28,500
Estimated gain on disposal				$ 6,900
Net proceeds after adjustments	27,900
Net assets disposed	18,800
Transaction-related cost	2,200
Goodwill	13,000
Net sales						$ 17,700
Income from operations						$ 1,600
Strobic Air Corporation [Member] | Definite-Lived Intangible Assets [Member]
Income Statement Balance Sheet And Additional Disclosures By Disposal Groups Including Discontinued Operations [Line Items]
Intangible assets	2,300
Strobic Air Corporation [Member] | Indefinite-Lived Intangible Assets [Member]
Income Statement Balance Sheet And Additional Disclosures By Disposal Groups Including Discontinued Operations [Line Items]
Intangible assets	$ 1,200
Keystone Filter [Member]
Income Statement Balance Sheet And Additional Disclosures By Disposal Groups Including Discontinued Operations [Line Items]
Sale price, subject to post-closing purchase price adjustments		$ 7,500
Estimated gain on disposal				$ 4,300
Net proceeds after adjustments		7,200
Net assets disposed		2,700
Transaction-related cost		$ 200
Keystone Filter [Member] | Scenario Forecast [Member]
Income Statement Balance Sheet And Additional Disclosures By Disposal Groups Including Discontinued Operations [Line Items]
Consideration receivable from divestiture							$ 1,900

Significant Accounting Policy67

Significant Accounting Policy Updates - Additional Information (Detail) - ASU 2014-09 [Member] - Energy Solutions and Industrial Solutions Segments [Member]	6 Months Ended
	Jun. 30, 2018Obligation
New Accounting Pronouncements Or Change In Accounting Principle [Line Items]
Revenue performance obligation, description of timing	The typical life of our 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	1
Maximum [Member]
New Accounting Pronouncements Or Change In Accounting Principle [Line Items]
Contracts life	12 months