CECO Environmental (CECO) 10-Q 10 May 17 2017 Q1 Quarterly report Financial data

Document and Entity Information

Document and Entity Information - shares	3 Months Ended
	Mar. 31, 2017	May 02, 2017
Document And Entity Information [Abstract]
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Mar. 31, 2017
Document Fiscal Year Focus	2,017
Document Fiscal Period Focus	Q1
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		34,600,799

Condensed Consolidated Balance

Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Mar. 31, 2017	Dec. 31, 2016
Current assets:
Cash and cash equivalents	$ 44,999	$ 45,824
Restricted cash	1,272	1,498
Accounts receivable, net	76,726	83,062
Costs and estimated earnings in excess of billings on uncompleted contracts	33,447	38,123
Inventories, net	21,498	21,487
Prepaid expenses and other current assets	12,282	13,560
Prepaid income taxes	2,709	1,590
Assets held for sale	7,826	7,834
Total current assets	200,759	212,978
Property, plant and equipment, net	26,452	27,270
Goodwill	170,293	170,153
Intangible assets-finite life, net	57,906	60,728
Intangible assets-indefinite life	22,085	22,042
Deferred charges and other assets	4,809	5,463
Total assets	482,304	498,634
Current liabilities:
Current portion of debt	8,852	8,827
Accounts payable and accrued expenses	81,796	95,610
Billings in excess of costs and estimated earnings on uncompleted contracts	34,211	35,085
Note payable	5,300	5,300
Income taxes payable	1,793	1,536
Total current liabilities	131,952	146,358
Other liabilities	37,526	34,864
Debt, less current portion	110,565	114,366
Deferred income tax liability, net	12,899	12,964
Total liabilities	292,942	308,552
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, 34,599,179 and 34,300,209 shares issued at March 31, 2017 and December 31, 2016, respectively	346	343
Capital in excess of par value	246,259	244,878
Accumulated loss	(44,394)	(41,741)
Accumulated other comprehensive loss	(12,493)	(13,042)
Stockholders' equity before treasury stock	189,718	190,438
Less treasury stock, at cost, 137,920 shares at March 31, 2017 and December 31, 2016	(356)	(356)
Total shareholders’ equity	189,362	190,082
Total liabilities and shareholders' equity	$ 482,304	$ 498,634

Condensed Consolidated Balance3

Condensed Consolidated Balance Sheets (Parenthetical) - $ / shares	Mar. 31, 2017	Dec. 31, 2016
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	34,599,179	34,300,209
Treasury stock, shares	137,920	137,920

Condensed Consolidated Statemen

Condensed Consolidated Statements of Operations (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Income Statement [Abstract]
Net sales	$ 92,651	$ 103,175
Cost of sales	60,722	71,589
Gross profit	31,929	31,586
Selling and administrative expenses	23,256	20,945
Acquisition and integration expenses		37
Amortization and earn-out expenses	7,323	4,797
Income from operations	1,350	5,807
Other (expense) income, net	(109)	780
Interest expense	(1,711)	(2,102)
(Loss) income before income taxes	(470)	4,485
Income tax (benefit) expense	(508)	1,430
Net income	38	3,055
Less net loss attributable to noncontrolling interest		(45)
Net income attributable to CECO Environmental Corp.	$ 38	$ 3,100
Earnings per share:
Basic	$ 0	$ 0.09
Diluted	$ 0	$ 0.09
Weighted average number of common shares outstanding:
Basic	34,215,519	33,928,052
Diluted	34,563,139	34,116,534

Condensed Consolidated Stateme5

Condensed Consolidated Statements of Comprehensive Income (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Statement Of Income And Comprehensive Income [Abstract]
Net income	$ 38	$ 3,055
Other comprehensive income, net of tax:
Interest rate swap	143	(275)
Foreign currency translation	406	321
Comprehensive income	587	3,101
Net loss attributable to noncontrolling interest		(45)
Comprehensive income attributable to CECO Environmental Corp.	$ 587	$ 3,056

Condensed Consolidated Stateme6

Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Cash flows from operating activities:
Net income	$ 38	$ 3,055
Adjustment to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	4,138	5,195
Unrealized foreign currency gain	(313)	(908)
Net gain on interest rate swaps	(58)
Fair value adjustments to earnout liabilities	3,897	347
Earnout payments	(2,155)
Loss on sale of property and equipment	77	3
Debt discount amortization	252	270
Share-based compensation expense	9	575
Bad debt expense	217	117
Inventory reserve expense	165	236
Changes in operating assets and liabilities, net of acquisitions:
Accounts receivable	6,505	12,996
Costs and estimated earnings in excess of billings on uncompleted contracts	4,920	(1,084)
Inventories	(110)	1,826
Prepaid expense and other current assets	361	(2,025)
Deferred charges and other assets	589	1,081
Accounts payable and accrued expenses	(13,428)	(11,996)
Billings in excess of costs and estimated earnings on uncompleted contracts	(944)	(47)
Income taxes payable	206	30
Other liabilities	287	(283)
Net cash provided by operating activities	4,653	9,388
Cash flows from investing activities:
Acquisitions of property and equipment	(410)	(212)
Proceeds from sale of property and equipment	11	282
Net (used in) provided by investing activities	(399)	70
Cash flows from financing activities:
Decrease (increase) in restricted cash	342	(111)
Net repayments on revolving credit lines		(3,934)
Repayments of debt	(4,038)	(3,215)
Earnout payments		(1,100)
Payments on capital leases and sale-leaseback transactions	(186)
Proceeds from employee stock purchase plan, exercise of stock options, and dividend reinvestment plan	1,199	115
Dividends paid to common shareholders	(2,580)	(2,243)
Net cash used in financing activities	(5,263)	(10,488)
Effect of exchange rate changes on cash and cash equivalents	184	226
Net decrease in cash and cash equivalents	(825)	(804)
Cash and cash equivalents at beginning of period	45,824	34,194
Cash and cash equivalents at end of period	44,999	33,390
Cash paid during the period for:
Interest	1,445	1,816
Income taxes	$ 490	$ 861

Basis of Reporting for Consolid

Basis of Reporting for Consolidated Financial Statements	3 Months Ended
	Mar. 31, 2017
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 March 31, 2017 and the results of operations and cash flows for the three-month periods ended March 31, 2017 and 2016. The results of operations for the three-month period ended March 31, 2017 are not necessarily indicative of the results to be expected for the full year. The balance sheet as of December 31, 2016 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, 2016 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, 2016 filed with the SEC. Unless otherwise indicated, all balances within tables are in thousands, except per share amounts. The Company’s consolidated financial statements include the accounts of all wholly-owned and majority-owned subsidiaries for all periods presented. All significant inter-company accounts and transactions have been eliminated in consolidation. On July 12, 2016, the Company entered into an agreement with the noncontrolling owner of Peerless Propulsys China Holdings LLC (“Peerless Propulsys”) and acquired 100% ownership in the equity and earnings of Peerless Propulsys of its 40% interest.

New Financial Accounting Pronou

New Financial Accounting Pronouncements	3 Months Ended
	Mar. 31, 2017
Accounting Changes And Error Corrections [Abstract]
New Financial Accounting Pronouncements	2. New Financial Accounting Pronouncements Accounting Standards Adopted in Fiscal 2017 In January 2017, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update (“ASU”) 2017-04, “Intangibles – Goodwill and Other (Topic 350): Simplifying the Test for Goodwill Impairment.” ASU 2017-04 eliminates Step 2 of the former goodwill impairment test along with amending other parts of the goodwill impairment test. Under this ASU, an entity should perform its annual or interim goodwill impairment test by comparing the fair value of the reporting unit with its carrying amount, and should recognize an impairment charge for the amount by which the carrying amount exceeds the reporting unit’s fair value with the loss not exceeding the total amount of goodwill allocated to that reporting unit. This ASU is effective for annual periods beginning after December 15, 2019, and interim periods therein with early adoption permitted for interim or annual goodwill impairment tests performed after January 1, 2017. The Company has adopted ASU 2017-04 effective beginning as of January 1, 2017. The provisions of ASU 2017-04 did not have a material effect on the Company’s financial condition, results of operations, or cash flows. In March 2016, the FASB issued ASU 2016-09, “Compensation—Stock Compensation: Improvements to Employee Share-Based Payment Accounting,” which changes the accounting for certain aspects of share-based payments to employees. The new guidance requires, among its other provisions, that excess tax benefits (which represent the excess of actual tax benefits received at the date of vesting or settlement over the benefits recognized over the vesting period or upon issuance of share-based payments) and tax deficiencies (which represent the amount by which actual tax benefits received at the date of vesting or settlement is lower than the benefits recognized over the vesting period or upon issuance of share-based payments) be recorded in the income statement as an increase or decrease in income taxes when the awards vest or are settled. This is in comparison to the prior requirement that these excess tax benefits be recognized in additional paid-in capital and these tax deficiencies be recognized either as an offset to accumulated excess tax benefits, if any, or in the income statement. The new guidance also requires excess tax benefits to be classified along with other income tax cash flows as an operating activity in the statement of cash flows rather than, as previously required, a financing activity. The new guidance allows companies to elect a change to an accounting policy to account for forfeitures as they occur. The new guidance is effective for the first quarter of our fiscal year ending December 31, 2017, with early adoption permitted. We have adopted ASU 2016-09 effective January 1, 2017 on a prospective basis where permitted by the new standard. As a result of this adoption: • We recognized discrete tax benefits of $0.4 million in the income tax expense (benefit) line item of our Condensed Consolidated Statement of Income for the three months ended March 31, 2017 related to excess tax benefits upon vesting or settlement in that period. • We elected to adopt the cash flow presentation of the excess tax benefits prospectively, commencing with our Condensed Consolidated Statement of Cash Flows for the three months ended March 31, 2017, where these benefits are classified along with other income tax cash flows as an operating activity. • We have elected to change our accounting policy to account for forfeitures as they occur. This change was applied on a modified retrospective basis with a cumulative effect adjustment to reduce retained earnings by $0.1 million as of January 1, 2017. • We excluded the excess tax benefits from the assumed proceeds available to repurchase shares in the computation of our diluted earnings per share for the three months ended March 31, 2017. In March 2016, the FASB issued ASU 2016-05, “Derivatives and Hedging: Effect of Derivative Contract Novations on Existing Hedge Accounting Relationships.” In July 2015, the FASB issued ASU 2015-11, “Simplifying the Measurement of Inventory.” ASU 2015-11 requires inventory within the scope of the ASU (i.e., first-in, first-out (“FIFO”) or average cost) to be measured using the lower of cost and net realizable value. Inventory excluded from the scope of the ASU (i.e., last-in, first-out (“LIFO”) or the retail inventory method) will continue to be measured at the lower of cost or market. The ASU also amends some of the other guidance in Topic 330, “Inventory,” to more clearly articulate the requirements for the measurement and disclosure of inventory. ASU 2015-11 is effective for annual periods beginning after December 15, 2016, and interim periods within those annual periods. The Company has adopted ASU 2015-11 on a prospective basis. The provisions of ASU 2015-11 did not have a material effect on the Company’s financial condition, results of operations, or cash flows. In December 2016, the FASB issued ASU 2016-19, “Technical Corrections and Improvements.” The amendments cover a wide range of topics in the Accounting Standards Codification, guidance clarification, reference corrections, simplification, and minor improvements. The adoption of ASU 2016-19 is effective for annual periods, including interim periods, within those annual periods, beginning after December 15, 2016. The Company has adopted ASU 2016-19 on a prospective basis. The provisions of ASU 2016-19 did not have a material effect on the Company’s financial condition, results of operations, or cash flows. Accounting Standards Yet to be Adopted 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. The amendments in ASU 2017-07 shall be applied retrospectively 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. ASU 2017-07 becomes effective for the Company on January 1, 2018. Early adoption is permitted. We do not expect the adoption of this guidance to have a material impact on our consolidated financial statements. In January 2017, the FASB issued ASU 2017-01, “Business Combinations (Topic 805): Clarifying the Definition of a Business.” The amendment seeks to clarify 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. The adoption of ASU 2017-01 is effective for annual periods beginning after December 15, 2017, including interim periods within those periods. The amendments should be applied prospectively on or after the effective dates. The Company is evaluating the effect of this standard on its consolidated financial statements. In November 2016, the FASB issued ASU 2016-18, “Statement of Cash Flows (Topic 230): Restricted Cash.” The amendments in ASU 2016-18 will require the change during the period in the total of cash, cash equivalents, and amounts generally described as restricted cash or restricted cash equivalents should 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. The ASU is effective for annual reporting periods beginning after December 15, 2017, including interim periods within that year. The Company is currently in the process of evaluating the impact of ASU 2016-18 on its consolidated financial statements. 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. ASU 2016-15 is effective for annual periods beginning after December 15, 2017, and interim periods within those fiscal years. ASU 2016-15 will require adoption on a retrospective basis, unless it is impracticable to apply, in which case we would be required to apply the amendments prospectively as of the earliest date practicable. Early adoption is permitted, including adoption in an interim period. The Company is currently in the process of evaluating the impact of ASU 2016-15 on its 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. ASU 2016-02 is effective for fiscal years beginning after December 15, 2018, including interim periods within those fiscal years. A modified retrospective transition approach is required for lessees for capital and operating leases existing at, or entered into after, the beginning of the earliest comparative period presented in the financial statements, with certain practical expedients available. 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 liquidity. The Company is continuing to evaluate potential impacts to our financial statements. 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. More judgment and estimates may be required to achieve this principle than under existing GAAP. 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. ASU 2014-09 and its clarifying amendments are effective for annual periods beginning after December 15, 2017, including interim periods therein, using either of the following transition methods: (i) a full retrospective approach reflecting the application of the standard in each prior reporting period with the option to elect certain practical expedients or (ii) a modified retrospective approach with the cumulative effect upon initial adoption recognized at the date of adoption, which includes additional footnote disclosures. We currently expect to adopt ASU 2014-09 as of January 1, 2018, under the modified retrospective method where the cumulative effect is recognized at the date of initial application. Our evaluation of ASU 2014-09 is ongoing and not complete. The FASB has issued and may issue in the future, interpretative guidance, which may cause our evaluation to change. The Company will not be able to make a determination about the impact of the standard until the time of adoption based upon outstanding contracts at that time. However, the Company will continue to evaluate our business processes, systems and controls, and potential differences, if any, in the timing and method of revenue recognition.

Accounts Receivable

Accounts Receivable	3 Months Ended
	Mar. 31, 2017
Receivables [Abstract]
Accounts Receivable	3. Accounts Receivable (Table only in thousands) March 31, 2017 December 31, 2016 Trade receivables $ 12,259 $ 11,976 Contract receivables 66,180 72,835 Allowance for doubtful accounts (1,713 ) (1,749 ) $ 76,726 $ 83,062 Balances billed but not paid by customers under retainage provisions in contracts amounted to approximately $2.8 million and $3.2 million at March 31, 2017 and December 31, 2016, respectively. Retainage receivables on contracts in progress are generally collected within a year after contract completion. Bad debt expense was $0.2 million and $0.1 million for the three-month periods ended March 31, 2017 and 2016, respectively.

Costs and Estimated Earnings on

Costs and Estimated Earnings on Uncompleted Contracts	3 Months Ended
	Mar. 31, 2017
Text Block [Abstract]
Costs and Estimated Earnings on Uncompleted Contracts	4. Costs and Estimated Earnings on Uncompleted Contracts Revenues from contracts are primarily recognized on the percentage of completion method, measured by the percentage of contract costs incurred to date compared with estimated total contract costs for each contract. This method is used because management considers contract costs to be the best available measure of progress on these contracts. For contracts where the duration is short, total contract revenue is insignificant, or reasonably dependable estimates cannot be made, revenues are recognized on a completed contract basis, when risk and title passes to the customer, which is generally upon shipment of product. 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) March 31, 2017 December 31, 2016 Costs incurred on uncompleted contracts $ 193,201 $ 186,609 Estimated earnings 77,234 77,709 270,435 264,318 Less billings to date (271,199 ) (261,280 ) $ (764 ) $ 3,038 Included in the accompanying condensed consolidated balance sheets under the following captions: Costs and estimated earnings in excess of billings on uncompleted contracts $ 33,447 $ 38,123 Billings in excess of costs and estimated earnings on uncompleted contracts 34,211 35,085 $ (764 ) $ 3,038 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. No provision for estimated losses on uncompleted contracts was required at March 31, 2017 or December 31, 2016.

Inventories

Inventories	3 Months Ended
	Mar. 31, 2017
Inventory Disclosure [Abstract]
Inventories	5. Inventories (Table only in thousands) March 31, 2017 December 31, 2016 Raw materials $ 17,866 $ 17,889 Work in process 4,142 3,986 Finished goods 1,554 1,508 Obsolescence allowance (2,064 ) (1,896 ) $ 21,498 $ 21,487 Amounts credited to the allowance for obsolete inventory and charged to cost of sales amounted to $0.2 million and $0.2 million for the three-month periods ended March 31, 2017 and 2016, respectively.

Goodwill and Intangible Assets

Goodwill and Intangible Assets	3 Months Ended
	Mar. 31, 2017
Goodwill And Intangible Assets Disclosure [Abstract]
Goodwill and Intangible Assets	6. Goodwill and Intangible Assets (Table only in thousands) Three months ended March 31, 2017 Year ended December 31, 2016 Goodwill / Tradename Goodwill Tradename Goodwill Tradename Beginning balance $ 170,153 $ 22,042 $ 220,163 $ 26,337 Acquisitions and related adjustments — — 4,205 — Impairment — — (53,762 ) (4,161 ) Foreign currency translation 140 43 (453 ) (134 ) $ 170,293 $ 22,085 $ 170,153 $ 22,042 (Table only in thousands) As of March 31, 2017 As of December 31, 2016 Intangible assets – finite life Cost Accum. Amort. Cost Accum. Amort. Technology $ 15,867 $ 6,913 $ 15,867 $ 6,360 Customer lists 77,497 28,288 77,497 26,041 Noncompetition agreements 1,118 533 1,118 478 Tradename 1,390 336 1,390 301 Foreign currency adjustments (2,771 ) (875 ) (2,964 ) (1,000 ) $ 93,101 $ 35,195 $ 92,908 $ 32,180 Activity for the three months ended March 31, 2017 and 2016 is as follows: (Table only in thousands) 2017 2016 Intangible assets – finite life, net at beginning of period $ 60,728 $ 74,957 Amortization expense (2,890 ) (3,935 ) Foreign currency adjustments 68 294 Intangible assets – finite life, net at end of period $ 57,906 $ 71,316 Amortization expense of finite life intangible assets was $2.9 million and $3.9 million for the three-month periods ended March 31, 2017 and 2016, respectively. Amortization over the next five years for finite life intangibles is expected to be $8.6 million for the remainder of 2017, $10.0 million in 2018, $8.8 million in 2019, $7.1 million in 2020, and $5.8 million in 2021. The Company did not identify any triggering events during the three-month period ended March 31, 2017 that would require an interim impairment assessment of goodwill or indefinite life intangible assets, therefore there was no impairment of goodwill or indefinite life intangible assets during the three-month period ended March 31, 2017.

Accounts Payable and Accrued Ex

Accounts Payable and Accrued Expenses	3 Months Ended
	Mar. 31, 2017
Payables And Accruals [Abstract]
Accounts Payable and Accrued Expenses	7. Accounts Payable and Accrued Expenses March 31, 2017 December 31, 2016 Trade accounts payable, including due to subcontractors $ 50,454 $ 58,985 Compensation and related benefits 5,332 8,232 Current portion of earn-out liability 13,062 13,527 Accrued warranty 3,373 2,684 Other accrued expenses 9,575 12,182 $ 81,796 $ 95,610 The activity in the Company’s current portion of earn-out liability and long term portion of earn-out liability was as follows for the three months ended March 31, 2017 and 2016: (Table only in thousands) Energy Segment Environmental Segment Total Balance of earn-out at December 31, 2016 $ 24,214 $ — $ 24,214 Fair value adjustment 3,897 — 3,897 Compensation expense adjustment 290 — 290 Foreign currency translation adjustment 200 — 200 Payment (2,155 ) — (2,155 ) Total earn-out liability as of March 31, 2017 $ 26,446 $ — $ 26,446 Less: current portion of earn-out (13,062 ) — (13,062 ) Balance of long term portion of earn-out recorded in other liabilities at March 31, 2017 $ 13,384 $ — $ 13,384 (Table only in thousands) Energy Segment Environmental Segment Total Balance of earn-out at December 31, 2015 $ 29,304 $ 3,367 $ 32,671 Fair value adjustment 847 (500 ) 347 Compensation expense adjustment 302 — 302 Foreign currency translation adjustment 288 — 288 Payment — (1,100 ) (1,100 ) Total earn-out liability as of March 31, 2016 $ 30,741 $ 1,767 $ 32,508 Less: current portion of earn-out (21,898 ) (667 ) (22,565 ) Balance of long term portion of earn-out recorded in other liabilities at March 31, 2016 $ 8,843 $ 1,100 $ 9,943

Senior Debt

Senior Debt	3 Months Ended
	Mar. 31, 2017
Debt Disclosure [Abstract]
Senior Debt	8. Senior debt Debt consisted of the following at March 31, 2017 and December 31, 2016: (Table only in thousands) March 31, 2017 December 31, 2016 Outstanding borrowings under Credit Facility (defined below) Term loan payable in quarterly principal installments of $1.6 million through September 2017, $2.2 million through September 2018, and $2.7 million thereafter with balance due upon maturity in September 2020 - Term loan $ 121,034 $ 125,072 - Unamortized debt discount (2,923 ) (3,175 ) Total outstanding borrowings under Credit Facility 118,111 121,897 Outstanding borrowings under China Facility (defined below) 1,306 1,296 Total outstanding borrowings 119,417 123,193 Less: current portion 8,852 8,827 Total debt, less current portion $ 110,565 $ 114,366 During the three-month period ended March 31, 2017, the Company made prepayments of $2.3 million and scheduled payments of $1.7 million for a total payment amount of $4.0 million on the outstanding balance of the term loan. Scheduled principal payments under our debt facilities are $6.7 million for the remainder of 2017, $9.2 million in 2018, $10.8 million in 2019, and $95.7 million in 2020. United States Debt As of March 31, 2017 and December 31, 2016, $21.3 million and $18.0 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 $58.7 million and $62.0 million at March 31, 2017 and December 31, 2016, 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 3.41% and 3.26% at March 31, 2017 and December 31, 2016, 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 had no impact on the Condensed Consolidated Balance Sheet as of March 31, 2017. The fair value of the interest rate swap was a liability totaling $ 0.2 0.5 The credit agreement that outlines the terms of the Credit Facility contains customary affirmative and negative covenants, including the requirement to maintain compliance with a consolidated leverage ratio of less than 3.25 and a consolidated fixed charge coverage ratio of more than 1.25. Per the Credit Agreement, the maximum consolidated leverage ratio decreased to 3.25 on January 1, 2017, and is set to decrease again to 3.00 on October 1, 2017. The consolidated leverage ratio will then remain at 3.00 until the end of the term of the Credit Agreement. The Credit Agreement also includes customary events of default and the occurrence of an event of default could result in an increased interest rate equal to 2.0% above the applicable interest rate for loans, the acceleration of the Company’s obligations pursuant to the Credit Agreement and an obligation of the subsidiary guarantors to repay the full amount of the Company’s borrowings pursuant to the Credit Agreement. As of March 31, 2017 and December 31, 2016, the Company was in compliance with all related financial and other restrictive covenants under the Credit Agreement. 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 $13.9 million. As of March 31, 2017 and December 31, 2016, the borrowers were in compliance with all related financial and other restrictive covenants. As of March 31, 2017, $4.4 million of the bank guarantee and none of the overdraft facility are being used by the borrowers. As of December 31, 2016, $5.3 million of the bank guarantee and none of the overdraft facility was being used by the borrowers. There is no stated expiration date on the Aarding Facility. A subsidiary of the Company located in China has a Chinese Yuan Renminbi denominated short-term loan with Bank of America (“China Facility”) with an amount outstanding of $1.3 million as of March 31, 2017 and December 31, 2016. The China Facility has a stated interest rate of 4.79% and matures in May 2017 . As a result of the PMFG acquisition, the Company acquired a 60% equity investment in Peerless Propulsys that entitled the Company to 80% of Peerless Propulsys’s earnings. In prior periods, the noncontrolling interest of Peerless Propulsys was reported as a separate component on the Consolidated Balance Sheets. During July of 2016, the Company entered into an agreement with the noncontrolling owner of Peerless Propulsys and issued a promissory note in the amount of $5.3 million due on July 11, 2019 in exchange for the remaining interest in Peerless Propulysys, which increased the Company’s ownership to 100% in the equity and earnings of Peerless Propulsys. The interest rate on the note payable is 1.50%, which approximates the market rate given the short term duration of the note payable. All of the Company’s assets are guaranteed to secure this agreement. As of December 31, 2016 and March 31, 2017, $5.3 million of the note payable was outstanding. The note is payable at the earlier of July 11, 2019 or thirty days subsequent to the sale of building and land that the Company owns in China. As the Company intends to sell this building and land within one year of March 31, 2017, this note payable is currently classified as a current liability in the Consolidated Balance Sheets as of December 31, 2017.

Earnings and Dividends per Shar

Earnings and Dividends per Share	3 Months Ended
	Mar. 31, 2017
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 periods ended March 31, 2017 and 2016 are below. For the three-month period ended March 31, 2017 Numerator (Income) Denominator (Shares) Per Share Amount Basic net income and earnings per share $ 38 34,216 $ 0.00 Effect of dilutive securities and notes: Common stock equivalents arising from stock options, restricted stock awards, and employee stock purchase plan — 347 — Diluted earnings and earnings per share $ 38 34,563 $ 0.00 For the three-month period ended March 31, 2016 Numerator (Income) Denominator (Shares) Per Share Amount Basic net income and earnings per share $ 3,100 33,928 $ 0.09 Effect of dilutive securities and notes: Common stock equivalents arising from stock options, restricted stock awards, and employee stock purchase plan — 189 — Diluted earnings and earnings per share $ 3,100 34,117 $ 0.09 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 March 31, 2017 and 2016, 0.8 million and 1.7 million, respectively, outstanding options and warrants were excluded from the computation of diluted earnings per share due to their having an anti-dilutive effect. 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. On March 6, 2017, the Company declared and, on March 31, 2017, paid to common stockholders a quarterly dividend of $0.075 per share. The dividend policy and the payment of cash dividends under that policy are subject to the Board of Directors’ continuing determination that the dividend policy and the declaration of dividends are in the best interest of the Company’s stockholders. Future dividends and the dividend policy may be changed or cancelled at the Company’s discretion at any time. Payment of dividends is also subject to the continuing compliance with our financial covenants under our Credit Facility.

Share-Based Compensation

Share-Based Compensation	3 Months Ended
	Mar. 31, 2017
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 no stock compensation related expense and $0.6 million of stock compensation related expense during the three-month periods ended March 31, 2017 and 2016, respectively. There was no expense for the three-month period ended March 31, 2017 due to a large amount of forfeitures primarily related to the former Chief Executive Officer’s departure from the Company. The Company granted no options and approximately 100,000 options during the three-month periods ended March 31, 2017 and 2016, respectively. The weighted-average fair value of stock options granted during the three months ended March 31, 2016 was estimated at $2.07 per option, respectively, using the Black-Scholes option-pricing model based on the following assumptions: Expected Volatility: The Company utilizes a volatility factor based on the Company’s historical stock prices for a period of time equal to the expected term of the stock option utilizing weekly price observations. For the three months ended March 31, 2016, the Company utilized a weighted-average volatility factor of 39%. Expected Term: For the three months ended March 31, 2016, the Company utilized a weighted-average expected term factor of 6.5 years. Risk-Free Interest Rate: The risk-free interest rate factor utilized is based upon the implied yields currently available on U.S. Treasury zero-coupon issues over the expected term of the stock options. For the three months ended March 31, 2016, the Company utilized a weighted-average risk-free interest rate factor of 2.1%. Expected Dividends: The Company utilized a weighted average expected dividend rate of 3.6% to value options granted during the three months ended March 31, 2016. The Company granted approximately 55,000 and 15,000 restricted stock units during the three-month periods ended March 31, 2017 and 2016, respectively. The weighted-average fair value of restricted stock units was estimated at $14.19 and $6.65 per unit granted during the three months ended March 31, 2017 and 2016, respectively. The fair value of the restricted stock units was determined by using the value of stock in the open market on the date of grant. 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. The Company received $1.1 million in cash from employees exercising options during the three months ended March 31, 2017. The intrinsic value of options exercised during the three months ended March 31, 2017 was $1.8 million. There were no options exercised during the three months ended March 31, 2016.

Pension and Employee Benefit Pl

Pension and Employee Benefit Plans	3 Months Ended
	Mar. 31, 2017
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. 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 March 31, 2017 2016 Pension plan: Service cost $ 113 $ 112 Interest cost 329 356 Expected return on plan assets (431 ) (457 ) Amortization of net actuarial loss 57 53 Net periodic benefit cost $ 68 $ 64 Health care plan: Interest cost $ 1 $ 1 Amortization of loss 2 3 Net periodic benefit cost $ 3 $ 4 We made no contributions to our defined benefit plans during the three months ended March 31, 2017. We made contributions to our defined benefit plans during the three months ended March 31, 2016 totaling $29,000. We anticipate $2.0 million and $25,000 of further contributions to fund the pension plan and the retiree health care plan, respectively, during the remainder of 2017. The unfunded liability of the plans of $11.1 million as of March 31, 2017 and December 31, 2016 is included in Other liabilities on our Condensed Consolidated Balance Sheets.

Income Taxes

Income Taxes	3 Months Ended
	Mar. 31, 2017
Income Tax Disclosure [Abstract]
Income Taxes	12. Income Taxes The Company files 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 2011 forward remain open for all significant state and foreign authorities. The Company accounts for uncertain tax positions pursuant to ASC Topic 740, “Income Taxes.” As of March 31, 2017 and December 31, 2016, the liability for uncertain tax positions totaled approximately $0.4 million, which is included in Other liabilities on our Condensed Consolidated Balance Sheets. The Company recognizes interest accrued related to uncertain tax positions in interest expense and penalties in income tax expense. The Company has not recorded deferred income taxes on the undistributed earnings of its foreign subsidiaries because of management’s intent to indefinitely reinvest such earnings.

Financial Instruments

Financial Instruments	3 Months Ended
	Mar. 31, 2017
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 March 31, 2017 and December 31, 2016, due to their short-term nature or variable, market-driven interest rates. The fair value of the debt issued under the Credit Agreement was $121.0 million and $125.1 million at March 31, 2017 and December 31, 2016, respectively. The fair value of the note payable was $5.3 million at March 31, 2017 and December 31, 2016, respectively. In accordance with the terms of the Credit Agreement, 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 March 31, 2017 and December 31, 2016, we had cash and cash equivalents of $45.0 million and $45.8 million, respectively, of which $28.9 million and $25.6 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	3 Months Ended
	Mar. 31, 2017
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 March 31, 2017 for cases involving asbestos-related claims were $1.2 million, of which together with all legal fees other than corporate counsel expenses; $1.1 million have been paid by the Company’s insurers. The average cost per settled claim, excluding legal fees, was approximately $27,000. Based upon the most recent information available to the Company regarding such claims, there were a total of 228 cases pending against the Company as of March 31, 2017 (with Connecticut, New York, Pennsylvania and West Virginia having the largest number of cases), as compared with 229 cases that were pending as of December 31, 2016. During the three months ended March 31, 2017, 15 new cases were filed against the Company, and the Company was dismissed from 12 cases and settled four 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. Valero One of our subsidiaries, Fisher-Klosterman, Inc. (“FKI”), was a defendant in a products liability lawsuit filed in Harris County, Texas on August 23, 2010 by three Valero refining companies (“Valero Suit”). The plaintiffs claimed that FKI (and its co-Defendants) used an allegedly defective refractory material included in cyclones it supplied to Valero that caused damages to refineries they own and operate. Plaintiffs claimed to have suffered property damages, including catalyst loss, regenerator repair costs, replacement part costs, damage to other property and business interruption loss. During 2014, the Company reached a settlement with the plaintiffs for $0.5 million and, accordingly, recorded a corresponding charge to operations. In addition, the Company reached an agreement with a supplier to recover $0.2 million related to this matter. The recovery was also recorded during 2014. The Company’s insurer, Valley Forge Insurance Company (“Valley Forge”), who had paid for the legal defense in this matter, initiated a new case in the Southern District of Ohio against the Company seeking, among other things, recoupment of past legal costs paid. Valley Forge claims that it did not have an obligation to defend FKI and is entitled to recoup all amounts paid to defend FKI. The Court rejected Valley Forge’s position on the duty to defend as contrary to Ohio law. The Court found that if Valley Forge could prove that FKI breached its duty to cooperate in defending the Valero Suit, Valley Forge may be relieved of its duty to defend to some extent. Valley Forge moved for reconsideration of the Court’s opinion in May 2016, which the court ruled against. The Court ruled in 2017 that Valley Forge could amend its complaint. The Company is vigorously disputing this claim, and is seeking to pursue counterclaims against the insurer. 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	3 Months Ended
	Mar. 31, 2017
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. Energy Segment Our Energy segment provides customized solutions for the power generation and petrochemical industry. This includes gas turbine exhaust systems, dampers and diverters, gas and liquid separation and filtration equipment, selective catalytic reduction (“SCR”) and selective non-catalytic reduction (“SNCR”) systems, acoustical components and silencers, secondary separators (nuclear plant reactor vessels) and expansion joints, the design and manufacture of technologies for flue gas and diverter dampers, non-metallic expansion joints, natural gas turbine exhaust systems, and silencer and precipitator applications, primarily for natural gas and coal-fired power plants, refining, oil production and petrochemical processing, as well as a variety of other industries. Environmental Segment Our Environmental segment provides the design and manufacture of product recovery and air pollution control technologies that enable our customers to leave a lower carbon footprint, lower energy consumption, minimize waste and meet compliance targets for toxic emissions, fumes, volatile organic compounds, process and industrial odors. These products and solutions 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 and Filtration Segment Our Fluid Handling and Filtration segment provides the design and manufacture of high quality pump, filtration and fume exhaust solutions. This includes 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. These products are applicable to a wide variety of industries, particularly the aquarium/aquaculture, plating and metal finishing, food and beverage, chemical/petrochemical, wastewater treatment, desalination and pharmaceutical markets. The accounting policies of the reporting segments are the same as those described in the summary of significant accounting policies in the Company’s Annual Report on Form 10-K for the year ended December 31, 2016 filed with the SEC. 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 Income. The financial segment information is presented in the following tables: Three Months Ended March 31, (dollars in thousands) 2017 2016 Net Sales (less intra-, inter-segment sales) Energy Segment $ 41,083 $ 47,932 Environmental Segment 35,929 39,122 Fluid Handling and Filtration Segment 15,816 16,595 Corporate and Other (1) (177 ) (474 ) Net sales $ 92,651 $ 103,175 (1) Includes adjustment for revenue on intercompany jobs. Three Months Ended March 31, (dollars in thousands) 2017 2016 Income from Operations Energy Segment $ 1,613 $ 5,196 Environmental Segment 5,109 4,746 Fluid Handling and Filtration Segment 3,309 3,198 Corporate and Other (2) (8,011 ) (6,920 ) Eliminations (670 ) (413 ) Income from Operations $ 1,350 $ 5,807 (2) Includes corporate compensation, professional services, information technology, executive transition expenses, acquisition and integration expenses, and other general and administrative corporate expenses. This figure excludes earn-out expenses, which are recorded in the segment in which the expense occurs. See Note 7 for the earn-out expenses by segment. Three Months Ended March 31, (dollars in thousands) 2017 2016 Property and Equipment Additions Energy Segment $ 236 $ 86 Environmental Segment 9 113 Fluid Handling and Filtration Segment 149 9 Corporate and Other 16 4 Property and Equipment Additions $ 410 $ 212 Three Months Ended March 31, (dollars in thousands) 2017 2016 Depreciation and Amortization Energy Segment $ 2,064 $ 2,802 Environmental Segment 845 967 Fluid Handling and Filtration Segment 1,198 1,394 Corporate and Other 31 32 Depreciation and Amortization $ 4,138 $ 5,195 (dollars in thousands) March 31, 2017 December 31, 2016 Identifiable Assets Energy Segment $ 240,841 $ 257,566 Environmental Segment 119,044 118,680 Fluid Handling and Filtration Segment 104,007 104,294 Corporate and Other (3) 18,412 18,094 Identifiable Assets $ 482,304 $ 498,634 (3) Corporate assets primarily consist of cash and income tax related assets. (dollars in thousands) March 31, 2017 December 31, 2016 Goodwill Energy Segment $ 75,967 $ 75,827 Environmental Segment 48,203 48,203 Fluid Handling and Filtration Segment 46,123 46,123 Goodwill $ 170,293 $ 170,153 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 March 31, 2017 Less Inter-Segment Sales (dollars in thousands) Total Sales Intra- Segment Sales Environmental Energy FHF Corp and Other Net Outside Customers Net Sales Energy Segment $ 43,413 $ (2,308 ) $ (22 ) $ — $ — $ — $ 41,083 Environmental Segment 37,548 (890 ) — (729 ) — — 35,929 Fluid Handling and Filtration Segment 16,692 (618 ) (164 ) (94 ) — — 15,816 Corporate and Other (4) — — — — — (177 ) (177 ) Net Sales $ 97,653 $ (3,816 ) $ (186 ) $ (823 ) $ — $ (177 ) $ 92,651 Three Months Ended March 31, 2016 Less Inter-Segment Sales (dollars in thousands) Total Sales Intra- Segment Sales Environmental Energy FHF Corp and Other Net Outside Customers Net Sales Energy Segment $ 48,581 $ (491 ) $ (158 ) $ — $ — $ — $ 47,932 Environmental Segment 42,053 (1,754 ) — (1,040 ) (137 ) — 39,122 Fluid Handling and Filtration Segment 17,012 (403 ) (14 ) — — — 16,595 Corporate and Other (4) — — — — — (474 ) (474 ) Net Sales $ 107,646 $ (2,648 ) $ (172 ) $ (1,040 ) $ (137 ) $ (474 ) $ 103,175 (4) Includes adjustment for revenue on intercompany jobs.

New Financial Accounting Pron22

New Financial Accounting Pronouncements (Policies)	3 Months Ended
	Mar. 31, 2017
Accounting Changes And Error Corrections [Abstract]
Accounting Standards Adopted in Fiscal 2017	Accounting Standards Adopted in Fiscal 2017 In January 2017, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update (“ASU”) 2017-04, “Intangibles – Goodwill and Other (Topic 350): Simplifying the Test for Goodwill Impairment.” ASU 2017-04 eliminates Step 2 of the former goodwill impairment test along with amending other parts of the goodwill impairment test. Under this ASU, an entity should perform its annual or interim goodwill impairment test by comparing the fair value of the reporting unit with its carrying amount, and should recognize an impairment charge for the amount by which the carrying amount exceeds the reporting unit’s fair value with the loss not exceeding the total amount of goodwill allocated to that reporting unit. This ASU is effective for annual periods beginning after December 15, 2019, and interim periods therein with early adoption permitted for interim or annual goodwill impairment tests performed after January 1, 2017. The Company has adopted ASU 2017-04 effective beginning as of January 1, 2017. The provisions of ASU 2017-04 did not have a material effect on the Company’s financial condition, results of operations, or cash flows. In March 2016, the FASB issued ASU 2016-09, “Compensation—Stock Compensation: Improvements to Employee Share-Based Payment Accounting,” which changes the accounting for certain aspects of share-based payments to employees. The new guidance requires, among its other provisions, that excess tax benefits (which represent the excess of actual tax benefits received at the date of vesting or settlement over the benefits recognized over the vesting period or upon issuance of share-based payments) and tax deficiencies (which represent the amount by which actual tax benefits received at the date of vesting or settlement is lower than the benefits recognized over the vesting period or upon issuance of share-based payments) be recorded in the income statement as an increase or decrease in income taxes when the awards vest or are settled. This is in comparison to the prior requirement that these excess tax benefits be recognized in additional paid-in capital and these tax deficiencies be recognized either as an offset to accumulated excess tax benefits, if any, or in the income statement. The new guidance also requires excess tax benefits to be classified along with other income tax cash flows as an operating activity in the statement of cash flows rather than, as previously required, a financing activity. The new guidance allows companies to elect a change to an accounting policy to account for forfeitures as they occur. The new guidance is effective for the first quarter of our fiscal year ending December 31, 2017, with early adoption permitted. We have adopted ASU 2016-09 effective January 1, 2017 on a prospective basis where permitted by the new standard. As a result of this adoption: • We recognized discrete tax benefits of $0.4 million in the income tax expense (benefit) line item of our Condensed Consolidated Statement of Income for the three months ended March 31, 2017 related to excess tax benefits upon vesting or settlement in that period. • We elected to adopt the cash flow presentation of the excess tax benefits prospectively, commencing with our Condensed Consolidated Statement of Cash Flows for the three months ended March 31, 2017, where these benefits are classified along with other income tax cash flows as an operating activity. • We have elected to change our accounting policy to account for forfeitures as they occur. This change was applied on a modified retrospective basis with a cumulative effect adjustment to reduce retained earnings by $0.1 million as of January 1, 2017. • We excluded the excess tax benefits from the assumed proceeds available to repurchase shares in the computation of our diluted earnings per share for the three months ended March 31, 2017. In March 2016, the FASB issued ASU 2016-05, “Derivatives and Hedging: Effect of Derivative Contract Novations on Existing Hedge Accounting Relationships.” In July 2015, the FASB issued ASU 2015-11, “Simplifying the Measurement of Inventory.” ASU 2015-11 requires inventory within the scope of the ASU (i.e., first-in, first-out (“FIFO”) or average cost) to be measured using the lower of cost and net realizable value. Inventory excluded from the scope of the ASU (i.e., last-in, first-out (“LIFO”) or the retail inventory method) will continue to be measured at the lower of cost or market. The ASU also amends some of the other guidance in Topic 330, “Inventory,” to more clearly articulate the requirements for the measurement and disclosure of inventory. ASU 2015-11 is effective for annual periods beginning after December 15, 2016, and interim periods within those annual periods. The Company has adopted ASU 2015-11 on a prospective basis. The provisions of ASU 2015-11 did not have a material effect on the Company’s financial condition, results of operations, or cash flows. In December 2016, the FASB issued ASU 2016-19, “Technical Corrections and Improvements.” The amendments cover a wide range of topics in the Accounting Standards Codification, guidance clarification, reference corrections, simplification, and minor improvements. The adoption of ASU 2016-19 is effective for annual periods, including interim periods, within those annual periods, beginning after December 15, 2016. The Company has adopted ASU 2016-19 on a prospective basis. The provisions of ASU 2016-19 did not have a material effect on the Company’s financial condition, results of operations, or cash flows.
Accounting Standards Yet to be Adopted	Accounting Standards Yet to be Adopted 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. The amendments in ASU 2017-07 shall be applied retrospectively 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. ASU 2017-07 becomes effective for the Company on January 1, 2018. Early adoption is permitted. We do not expect the adoption of this guidance to have a material impact on our consolidated financial statements. In January 2017, the FASB issued ASU 2017-01, “Business Combinations (Topic 805): Clarifying the Definition of a Business.” The amendment seeks to clarify 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. The adoption of ASU 2017-01 is effective for annual periods beginning after December 15, 2017, including interim periods within those periods. The amendments should be applied prospectively on or after the effective dates. The Company is evaluating the effect of this standard on its consolidated financial statements. In November 2016, the FASB issued ASU 2016-18, “Statement of Cash Flows (Topic 230): Restricted Cash.” The amendments in ASU 2016-18 will require the change during the period in the total of cash, cash equivalents, and amounts generally described as restricted cash or restricted cash equivalents should 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. The ASU is effective for annual reporting periods beginning after December 15, 2017, including interim periods within that year. The Company is currently in the process of evaluating the impact of ASU 2016-18 on its consolidated financial statements. 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. ASU 2016-15 is effective for annual periods beginning after December 15, 2017, and interim periods within those fiscal years. ASU 2016-15 will require adoption on a retrospective basis, unless it is impracticable to apply, in which case we would be required to apply the amendments prospectively as of the earliest date practicable. Early adoption is permitted, including adoption in an interim period. The Company is currently in the process of evaluating the impact of ASU 2016-15 on its 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. ASU 2016-02 is effective for fiscal years beginning after December 15, 2018, including interim periods within those fiscal years. A modified retrospective transition approach is required for lessees for capital and operating leases existing at, or entered into after, the beginning of the earliest comparative period presented in the financial statements, with certain practical expedients available. 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 liquidity. The Company is continuing to evaluate potential impacts to our financial statements. 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. More judgment and estimates may be required to achieve this principle than under existing GAAP. 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. ASU 2014-09 and its clarifying amendments are effective for annual periods beginning after December 15, 2017, including interim periods therein, using either of the following transition methods: (i) a full retrospective approach reflecting the application of the standard in each prior reporting period with the option to elect certain practical expedients or (ii) a modified retrospective approach with the cumulative effect upon initial adoption recognized at the date of adoption, which includes additional footnote disclosures. We currently expect to adopt ASU 2014-09 as of January 1, 2018, under the modified retrospective method where the cumulative effect is recognized at the date of initial application. Our evaluation of ASU 2014-09 is ongoing and not complete. The FASB has issued and may issue in the future, interpretative guidance, which may cause our evaluation to change. The Company will not be able to make a determination about the impact of the standard until the time of adoption based upon outstanding contracts at that time. However, the Company will continue to evaluate our business processes, systems and controls, and potential differences, if any, in the timing and method of revenue recognition.

Accounts Receivable (Tables)

Accounts Receivable (Tables)	3 Months Ended
	Mar. 31, 2017
Receivables [Abstract]
Summary of Accounts Receivable	(Table only in thousands) March 31, 2017 December 31, 2016 Trade receivables $ 12,259 $ 11,976 Contract receivables 66,180 72,835 Allowance for doubtful accounts (1,713 ) (1,749 ) $ 76,726 $ 83,062

Costs and Estimated Earnings 24

Costs and Estimated Earnings on Uncompleted Contracts (Tables)	3 Months Ended
	Mar. 31, 2017
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) March 31, 2017 December 31, 2016 Costs incurred on uncompleted contracts $ 193,201 $ 186,609 Estimated earnings 77,234 77,709 270,435 264,318 Less billings to date (271,199 ) (261,280 ) $ (764 ) $ 3,038 Included in the accompanying condensed consolidated balance sheets under the following captions: Costs and estimated earnings in excess of billings on uncompleted contracts $ 33,447 $ 38,123 Billings in excess of costs and estimated earnings on uncompleted contracts 34,211 35,085 $ (764 ) $ 3,038

Inventories (Tables)

Inventories (Tables)	3 Months Ended
	Mar. 31, 2017
Inventory Disclosure [Abstract]
Summary of Inventories	(Table only in thousands) March 31, 2017 December 31, 2016 Raw materials $ 17,866 $ 17,889 Work in process 4,142 3,986 Finished goods 1,554 1,508 Obsolescence allowance (2,064 ) (1,896 ) $ 21,498 $ 21,487

Goodwill and Intangible Assets

Goodwill and Intangible Assets (Tables)	3 Months Ended
	Mar. 31, 2017
Goodwill And Intangible Assets Disclosure [Abstract]
Goodwill / Tradename	(Table only in thousands) Three months ended March 31, 2017 Year ended December 31, 2016 Goodwill / Tradename Goodwill Tradename Goodwill Tradename Beginning balance $ 170,153 $ 22,042 $ 220,163 $ 26,337 Acquisitions and related adjustments — — 4,205 — Impairment — — (53,762 ) (4,161 ) Foreign currency translation 140 43 (453 ) (134 ) $ 170,293 $ 22,085 $ 170,153 $ 22,042
Intangible Assets - Finite Life	(Table only in thousands) As of March 31, 2017 As of December 31, 2016 Intangible assets – finite life Cost Accum. Amort. Cost Accum. Amort. Technology $ 15,867 $ 6,913 $ 15,867 $ 6,360 Customer lists 77,497 28,288 77,497 26,041 Noncompetition agreements 1,118 533 1,118 478 Tradename 1,390 336 1,390 301 Foreign currency adjustments (2,771 ) (875 ) (2,964 ) (1,000 ) $ 93,101 $ 35,195 $ 92,908 $ 32,180
Summary of Finite Lived Intangible Assets Activities	Activity for the three months ended March 31, 2017 and 2016 is as follows: (Table only in thousands) 2017 2016 Intangible assets – finite life, net at beginning of period $ 60,728 $ 74,957 Amortization expense (2,890 ) (3,935 ) Foreign currency adjustments 68 294 Intangible assets – finite life, net at end of period $ 57,906 $ 71,316

Accounts Payable and Accrued 27

Accounts Payable and Accrued Expenses (Tables)	3 Months Ended
	Mar. 31, 2017
Payables And Accruals [Abstract]
Summary of Accounts Payable and Accrued Expenses	March 31, 2017 December 31, 2016 Trade accounts payable, including due to subcontractors $ 50,454 $ 58,985 Compensation and related benefits 5,332 8,232 Current portion of earn-out liability 13,062 13,527 Accrued warranty 3,373 2,684 Other accrued expenses 9,575 12,182 $ 81,796 $ 95,610
Schedule of Current and Long term Portion of Earn-out Liability	The activity in the Company’s current portion of earn-out liability and long term portion of earn-out liability was as follows for the three months ended March 31, 2017 and 2016: (Table only in thousands) Energy Segment Environmental Segment Total Balance of earn-out at December 31, 2016 $ 24,214 $ — $ 24,214 Fair value adjustment 3,897 — 3,897 Compensation expense adjustment 290 — 290 Foreign currency translation adjustment 200 — 200 Payment (2,155 ) — (2,155 ) Total earn-out liability as of March 31, 2017 $ 26,446 $ — $ 26,446 Less: current portion of earn-out (13,062 ) — (13,062 ) Balance of long term portion of earn-out recorded in other liabilities at March 31, 2017 $ 13,384 $ — $ 13,384 (Table only in thousands) Energy Segment Environmental Segment Total Balance of earn-out at December 31, 2015 $ 29,304 $ 3,367 $ 32,671 Fair value adjustment 847 (500 ) 347 Compensation expense adjustment 302 — 302 Foreign currency translation adjustment 288 — 288 Payment — (1,100 ) (1,100 ) Total earn-out liability as of March 31, 2016 $ 30,741 $ 1,767 $ 32,508 Less: current portion of earn-out (21,898 ) (667 ) (22,565 ) Balance of long term portion of earn-out recorded in other liabilities at March 31, 2016 $ 8,843 $ 1,100 $ 9,943

Senior Debt (Tables)

Senior Debt (Tables)	3 Months Ended
	Mar. 31, 2017
Debt Disclosure [Abstract]
Summary of Debt	Debt consisted of the following at March 31, 2017 and December 31, 2016: (Table only in thousands) March 31, 2017 December 31, 2016 Outstanding borrowings under Credit Facility (defined below) Term loan payable in quarterly principal installments of $1.6 million through September 2017, $2.2 million through September 2018, and $2.7 million thereafter with balance due upon maturity in September 2020 - Term loan $ 121,034 $ 125,072 - Unamortized debt discount (2,923 ) (3,175 ) Total outstanding borrowings under Credit Facility 118,111 121,897 Outstanding borrowings under China Facility (defined below) 1,306 1,296 Total outstanding borrowings 119,417 123,193 Less: current portion 8,852 8,827 Total debt, less current portion $ 110,565 $ 114,366

Earnings and Dividends per Sh29

Earnings and Dividends per Share (Tables)	3 Months Ended
	Mar. 31, 2017
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 periods ended March 31, 2017 and 2016 are below. For the three-month period ended March 31, 2017 Numerator (Income) Denominator (Shares) Per Share Amount Basic net income and earnings per share $ 38 34,216 $ 0.00 Effect of dilutive securities and notes: Common stock equivalents arising from stock options, restricted stock awards, and employee stock purchase plan — 347 — Diluted earnings and earnings per share $ 38 34,563 $ 0.00 For the three-month period ended March 31, 2016 Numerator (Income) Denominator (Shares) Per Share Amount Basic net income and earnings per share $ 3,100 33,928 $ 0.09 Effect of dilutive securities and notes: Common stock equivalents arising from stock options, restricted stock awards, and employee stock purchase plan — 189 — Diluted earnings and earnings per share $ 3,100 34,117 $ 0.09

Pension and Employee Benefit 30

Pension and Employee Benefit Plans (Tables)	3 Months Ended
	Mar. 31, 2017
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 March 31, 2017 2016 Pension plan: Service cost $ 113 $ 112 Interest cost 329 356 Expected return on plan assets (431 ) (457 ) Amortization of net actuarial loss 57 53 Net periodic benefit cost $ 68 $ 64 Health care plan: Interest cost $ 1 $ 1 Amortization of loss 2 3 Net periodic benefit cost $ 3 $ 4

Business Segment Information (T

Business Segment Information (Tables)	3 Months Ended
	Mar. 31, 2017
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 March 31, (dollars in thousands) 2017 2016 Net Sales (less intra-, inter-segment sales) Energy Segment $ 41,083 $ 47,932 Environmental Segment 35,929 39,122 Fluid Handling and Filtration Segment 15,816 16,595 Corporate and Other (1) (177 ) (474 ) Net sales $ 92,651 $ 103,175 (1) Includes adjustment for revenue on intercompany jobs. Three Months Ended March 31, (dollars in thousands) 2017 2016 Income from Operations Energy Segment $ 1,613 $ 5,196 Environmental Segment 5,109 4,746 Fluid Handling and Filtration Segment 3,309 3,198 Corporate and Other (2) (8,011 ) (6,920 ) Eliminations (670 ) (413 ) Income from Operations $ 1,350 $ 5,807 (2) Includes corporate compensation, professional services, information technology, executive transition expenses, acquisition and integration expenses, and other general and administrative corporate expenses. This figure excludes earn-out expenses, which are recorded in the segment in which the expense occurs. See Note 7 for the earn-out expenses by segment.
Property and Equipment Additions, Depreciation and Amortization and Identifiable Assets	Three Months Ended March 31, (dollars in thousands) 2017 2016 Property and Equipment Additions Energy Segment $ 236 $ 86 Environmental Segment 9 113 Fluid Handling and Filtration Segment 149 9 Corporate and Other 16 4 Property and Equipment Additions $ 410 $ 212 Three Months Ended March 31, (dollars in thousands) 2017 2016 Depreciation and Amortization Energy Segment $ 2,064 $ 2,802 Environmental Segment 845 967 Fluid Handling and Filtration Segment 1,198 1,394 Corporate and Other 31 32 Depreciation and Amortization $ 4,138 $ 5,195 (dollars in thousands) March 31, 2017 December 31, 2016 Identifiable Assets Energy Segment $ 240,841 $ 257,566 Environmental Segment 119,044 118,680 Fluid Handling and Filtration Segment 104,007 104,294 Corporate and Other (3) 18,412 18,094 Identifiable Assets $ 482,304 $ 498,634 (3) Corporate assets primarily consist of cash and income tax related assets.
Goodwill	(dollars in thousands) March 31, 2017 December 31, 2016 Goodwill Energy Segment $ 75,967 $ 75,827 Environmental Segment 48,203 48,203 Fluid Handling and Filtration Segment 46,123 46,123 Goodwill $ 170,293 $ 170,153
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 March 31, 2017 Less Inter-Segment Sales (dollars in thousands) Total Sales Intra- Segment Sales Environmental Energy FHF Corp and Other Net Outside Customers Net Sales Energy Segment $ 43,413 $ (2,308 ) $ (22 ) $ — $ — $ — $ 41,083 Environmental Segment 37,548 (890 ) — (729 ) — — 35,929 Fluid Handling and Filtration Segment 16,692 (618 ) (164 ) (94 ) — — 15,816 Corporate and Other (4) — — — — — (177 ) (177 ) Net Sales $ 97,653 $ (3,816 ) $ (186 ) $ (823 ) $ — $ (177 ) $ 92,651 Three Months Ended March 31, 2016 Less Inter-Segment Sales (dollars in thousands) Total Sales Intra- Segment Sales Environmental Energy FHF Corp and Other Net Outside Customers Net Sales Energy Segment $ 48,581 $ (491 ) $ (158 ) $ — $ — $ — $ 47,932 Environmental Segment 42,053 (1,754 ) — (1,040 ) (137 ) — 39,122 Fluid Handling and Filtration Segment 17,012 (403 ) (14 ) — — — 16,595 Corporate and Other (4) — — — — — (474 ) (474 ) Net Sales $ 107,646 $ (2,648 ) $ (172 ) $ (1,040 ) $ (137 ) $ (474 ) $ 103,175 (4) Includes adjustment for revenue on intercompany jobs.

Basis of Reporting for Consol32

Basis of Reporting for Consolidated Financial Statements - Additional Information (Detail)	Jul. 12, 2016
Peerless Propulsys [Member]
Basis Of Presentation And Principles Of Consolidation [Line Items]
CECO Group Global Holdings LLC	100.00%

New Financial Accounting Pron33

New Financial Accounting Pronouncements - Additional Information (Detail) - ASU 2016-09 [Member] $ in Millions	3 Months Ended
	Mar. 31, 2017USD ($)
New Accounting Pronouncements Or Change In Accounting Principle [Line Items]
Discrete tax benefit	$ 0.4
Retained Earnings [Member]
New Accounting Pronouncements Or Change In Accounting Principle [Line Items]
Cumulative effect adjustment to reduce retained earnings	$ 0.1

Accounts Receivable - Summary o

Accounts Receivable - Summary of Accounts Receivable (Detail) - USD ($) $ in Thousands	Mar. 31, 2017	Dec. 31, 2016
Accounts, Notes, Loans and Financing Receivable [Line Items]
Contract receivables	$ 66,180	$ 72,835
Allowance for doubtful accounts	(1,713)	(1,749)
Accounts receivable, Total	76,726	83,062
Trade Accounts Receivable [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Trade receivables	$ 12,259	$ 11,976

Accounts Receivable - Additiona

Accounts Receivable - Additional Information (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016	Dec. 31, 2016
Receivables [Abstract]
Amount billed but not received under retainage provisions in contracts	$ 2,800		$ 3,200
Retainage receivables on contracts period	1 year
Bad debt expense	$ 217	$ 117

Costs and Estimated Earnings 36

Costs and Estimated Earnings on Uncompleted Contracts - Costs and Estimated Earnings on Uncompleted Contracts (Detail) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Mar. 31, 2017	Dec. 31, 2016
Costs In Excess Of Billings On Uncompleted Contracts Or Programs [Abstract]
Costs incurred on uncompleted contracts	$ 193,201	$ 186,609
Estimated earnings	77,234	77,709
Contract Revenues	270,435	264,318
Less billings to date	(271,199)	(261,280)
Net bills receivable	(764)	3,038
Included in the accompanying condensed consolidated balance sheets under the following captions:
Costs and estimated earnings in excess of billings on uncompleted contracts	33,447	38,123
Billings in excess of costs and estimated earnings on uncompleted contracts	34,211	35,085
Net bills receivable	$ (764)	$ 3,038

Costs and Estimated Earnings 37

Costs and Estimated Earnings on Uncompleted Contracts - Additional Information (Detail) - USD ($)	3 Months Ended	12 Months Ended
	Mar. 31, 2017	Dec. 31, 2016
Costs In Excess Of Billings On Uncompleted Contracts Or Programs [Abstract]
Provision for estimated losses on uncompleted contracts	$ 0	$ 0

Inventories - Summary of Invent

Inventories - Summary of Inventories (Detail) - USD ($) $ in Thousands	Mar. 31, 2017	Dec. 31, 2016
Inventory Net [Abstract]
Raw materials	$ 17,866	$ 17,889
Work in process	4,142	3,986
Finished goods	1,554	1,508
Obsolescence allowance	(2,064)	(1,896)
Inventory, net	$ 21,498	$ 21,487

Inventories - Additional Inform

Inventories - Additional Information (Detail) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Inventory Disclosure [Abstract]
Amounts credited to the allowance for obsolete inventory	$ 0.2	$ 0.2

Goodwill and Intangible Asset40

Goodwill and Intangible Assets - Goodwill / Tradename (Detail) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Mar. 31, 2017	Dec. 31, 2016
Goodwill And Intangible Assets Disclosure [Abstract]
Goodwill, beginning balance	$ 170,153	$ 220,163
Goodwill, acquisitions and related adjustments		4,205
Goodwill, impairment		(53,762)
Goodwill, foreign currency translation	140	(453)
Goodwill, ending balance	170,293	170,153
Tradename, beginning balance	22,042	26,337
Tradename, impairment		(4,161)
Tradename, foreign currency translation	43	(134)
Tradename, ending balance	$ 22,085	$ 22,042

Goodwill and Intangible Asset41

Goodwill and Intangible Assets - Intangible Assets - Finite Life (Detail) - USD ($) $ in Thousands	Mar. 31, 2017	Dec. 31, 2016
Finite-Lived Intangible Assets [Line Items]
Cost	$ 93,101	$ 92,908
Accumulated Amortization	35,195	32,180
Technology [Member]
Finite-Lived Intangible Assets [Line Items]
Cost	15,867	15,867
Accumulated Amortization	6,913	6,360
Customer Lists [Member]
Finite-Lived Intangible Assets [Line Items]
Cost	77,497	77,497
Accumulated Amortization	28,288	26,041
Non-compete Agreements [Member]
Finite-Lived Intangible Assets [Line Items]
Cost	1,118	1,118
Accumulated Amortization	533	478
Tradename [Member]
Finite-Lived Intangible Assets [Line Items]
Cost	1,390	1,390
Accumulated Amortization	336	301
Foreign Currency Adjustments [Member]
Finite-Lived Intangible Assets [Line Items]
Cost	(2,771)	(2,964)
Accumulated Amortization	$ (875)	$ (1,000)

Goodwill and Intangible Asset42

Goodwill and Intangible Assets - Finite Lived Intangible Assets Amortization Expense (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Goodwill And Intangible Assets Disclosure [Abstract]
Intangible assets - finite life, Beginning of period	$ 60,728	$ 74,957
Amortization expense	(2,890)	(3,935)
Foreign currency adjustments	68	294
Intangible assets - finite life, End of period	$ 57,906	$ 71,316

Goodwill and Intangible Asset43

Goodwill and Intangible Assets - Additional Information (Detail) - USD ($)	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Goodwill And Intangible Assets Disclosure [Abstract]
Amortization expense of finite life intangible assets	$ 2,890,000	$ 3,935,000
Amortization expense of finite life intangibles for 2017	8,600,000
Amortization expense of finite life intangibles for 2018	10,000,000
Amortization expense of finite life intangibles for 2019	8,800,000
Amortization expense of finite life intangibles for 2020	7,100,000
Amortization expense of finite life intangibles for 2021	5,800,000
Goodwill or indefinite life intangible asset charges	$ 0

Accounts Payable and Accrued 44

Accounts Payable and Accrued Expenses - Summary of Accounts Payable and Accrued Expenses (Detail) - USD ($) $ in Thousands	Mar. 31, 2017	Dec. 31, 2016	Mar. 31, 2016
Payables And Accruals [Abstract]
Trade accounts payable, including due to subcontractors	$ 50,454	$ 58,985
Compensation and related benefits	5,332	8,232
Current portion of earn-out liability	13,062	13,527	$ 22,565
Accrued warranty	3,373	2,684
Other accrued expenses	9,575	12,182
Accounts payable and accrued expenses	$ 81,796	$ 95,610

Accounts Payable and Accrued 45

Accounts Payable and Accrued Expenses - Summary of Current Portion of Earn-out Liabilities and Long term Portion of Earn-out Liability (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016	Dec. 31, 2016
Business Acquisition Contingent Consideration [Line Items]
Balance of earn-out at beginning of period	$ 24,214	$ 32,671
Fair value adjustment	3,897	347
Compensation expense adjustment	290	302
Foreign currency translation adjustment	200	288
Payment	(2,155)	(1,100)
Total earn-out liability at end of period	26,446	32,508
Less: current portion of earn-out	(13,062)	(22,565)	$ (13,527)
Balance of long term portion of earn-out recorded in other liabilities at end of period	13,384	9,943
Energy Segment [Member]
Business Acquisition Contingent Consideration [Line Items]
Balance of earn-out at beginning of period	24,214	29,304
Fair value adjustment	3,897	847
Compensation expense adjustment	290	302
Foreign currency translation adjustment	200	288
Payment	(2,155)
Total earn-out liability at end of period	26,446	30,741
Less: current portion of earn-out	(13,062)	(21,898)
Balance of long term portion of earn-out recorded in other liabilities at end of period	$ 13,384	8,843
Environmental Segment [Member]
Business Acquisition Contingent Consideration [Line Items]
Balance of earn-out at beginning of period		3,367
Fair value adjustment		(500)
Payment		(1,100)
Total earn-out liability at end of period		1,767
Less: current portion of earn-out		(667)
Balance of long term portion of earn-out recorded in other liabilities at end of period		$ 1,100

Senior Debt - Summary of Debt (

Senior Debt - Summary of Debt (Detail) - USD ($) $ in Thousands	Mar. 31, 2017	Dec. 31, 2016
Debt Instrument [Line Items]
Total outstanding borrowings	$ 119,417	$ 123,193
Less: current portion	8,852	8,827
Total debt, less current portion	110,565	114,366
Term Loan [Member]
Debt Instrument [Line Items]
Total outstanding borrowings	121,034	125,072
China Facility [Member]
Debt Instrument [Line Items]
Total outstanding borrowings under Credit Facility	1,306	1,296
Term Debt [Member]
Debt Instrument [Line Items]
Unamortized debt discount	(2,923)	(3,175)
US Dollar Borrowings [Member] | Term Loan [Member]
Debt Instrument [Line Items]
Total outstanding borrowings	$ 118,111	$ 121,897

Senior Debt - Summary of Debt47

Senior Debt - Summary of Debt (Parenthetical) (Detail) - Term Loan [Member] $ in Millions	3 Months Ended
	Mar. 31, 2017USD ($)
Debt Instrument, Redemption, through September 2017 [Member]
Debt Instrument [Line Items]
Outstanding borrowings, quarterly principal installments payable amount	$ 1.6
Term loans, year of maturity	2017-09
Debt Instrument, Redemption, through September 2018 [Member]
Debt Instrument [Line Items]
Outstanding borrowings, quarterly principal installments payable amount	$ 2.2
Term loans, year of maturity	2018-09
Debt Instrument, Redemption, through September 2020 [Member]
Debt Instrument [Line Items]
Outstanding borrowings, quarterly principal installments payable amount	$ 2.7
Term loans, year of maturity	2020-09

Senior Debt - Additional Inform

Senior Debt - Additional Information (Detail) - USD ($)	1 Months Ended	3 Months Ended
	Jul. 31, 2016	Mar. 31, 2017	Mar. 31, 2016	Oct. 01, 2017	Jan. 01, 2017	Dec. 31, 2016	Jul. 12, 2016
Line Of Credit Facility [Line Items]
Prepayment of outstanding debt		$ 2,300,000
Scheduled payments of debt		1,700,000
Repayments of debt		4,038,000	$ 3,215,000
Long-term debt, principal payment remainder of 2017		6,700,000
Long-term debt, principal payment 2018		9,200,000
Long-term debt, principal payment 2019		10,800,000
Long-term debt, principal payment 2020		$ 95,700,000
Weighted average stated interest rate on outstanding borrowings		3.41%				3.26%
Interest rate swap, fair value						$ 200,000
Changes in fair value income (loss)			$ 500,000
Maximum consolidated leverage ratio		325.00%			325.00%
Minimum fixed charge coverage ratio		125.00%
Increased interest rate of loan due to default		2.00%
ING Bank N.V. ("Aarding") [Member]
Line Of Credit Facility [Line Items]
Total borrowing capacity		$ 13,900,000				13,900,000
ING Bank N.V. ("Aarding") [Member] | Bank Overdrafts [Member]
Line Of Credit Facility [Line Items]
Aggregate principal amount outstanding under the credit facilities		$ 0				0
Peerless Propulsys [Member]
Line Of Credit Facility [Line Items]
Ownership interest in the equity and earnings							100.00%
Peerless Propulsys [Member] | PMFG, Inc. [Member]
Line Of Credit Facility [Line Items]
Interest rate	1.50%
Noncontrolling interest, ownership percentage by parent		60.00%
Percentage of ownership by parent in net income loss		80.00%
Promissory note issued in exchange for ownership in equity	$ 5,300,000
Promissory note due date	Jul. 11, 2019
Ownership interest in the equity and earnings	100.00%
Notes payable amount outstanding		$ 5,300,000				5,300,000
Debt Instrument, Term		30 days
Notes payable description		The note is payable at the earlier of July 11, 2019 or thirty days subsequent to the sale of building and land that the Company owns in China.
Building and land expected for sale, period		1 year
Scenario Forecast [Member]
Line Of Credit Facility [Line Items]
Maximum consolidated leverage ratio				300.00%
Credit Agreement [Member]
Line Of Credit Facility [Line Items]
Unused credit availability under credit facility		$ 58,700,000				62,000,000
Letters of Credit [Member]
Line Of Credit Facility [Line Items]
Aggregate principal amount outstanding under the credit facilities		21,300,000				18,000,000
Bank Guarantee Facility [Member] | ING Bank N.V. ("Aarding") [Member]
Line Of Credit Facility [Line Items]
Aggregate principal amount outstanding under the credit facilities		4,400,000				5,300,000
China Facility [Member]
Line Of Credit Facility [Line Items]
Aggregate principal amount outstanding under the credit facilities		$ 1,306,000				$ 1,296,000
Interest rate		4.79%
Debt instrument maturity period		2017-05

Earnings and Dividends per Sh49

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
	Mar. 31, 2017	Mar. 31, 2016
Earnings Per Share [Abstract]
Basic net income and earnings per share, Numerator (Income)	$ 38	$ 3,100
Diluted earnings and earnings per share, Numerator (Income)	$ 38	$ 3,100
Basic net income and earnings per share, Denominator (Shares)	34,215,519	33,928,052
Common stock equivalents arising from stock options, restricted stock awards, and employee stock purchase plan, Denominator (Shares)	347,000	189,000
Diluted earnings and earnings per share, Denominator (Shares)	34,563,139	34,116,534
Basic net income and earning per share, Per Share Amount	$ 0	$ 0.09
Diluted earning and earning per share, Per Share Amount	$ 0	$ 0.09

Earnings and Dividends per Sh50

Earnings and Dividends per Share - Additional Information (Detail) - $ / shares shares in Millions	Mar. 31, 2017	Mar. 31, 2017	Mar. 31, 2016	Mar. 06, 2017
Earnings And Dividends Per Share [Abstract]
Shares not included in computation of diluted Earning per share		0.8	1.7
Quarterly dividend declared per share				$ 0.075
Dividend payable date		Mar. 31, 2017
Common Stock, dividends, per share, Paid	$ 0.075

Share-Based Compensation - Addi

Share-Based Compensation - Additional Information (Detail) - USD ($)	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Recognized share-based compensation awards	$ 0	$ 600,000
Number of stock option granted	0	100,000
Weighted-average fair value of stock options granted		$ 2.07
Expected Volatility Rate		39.00%
Expected Term Period		6 years 6 months
Risk-Free Interest Rate		2.10%
Expected dividend rate		3.60%
Cash received from employees stock option exercised	$ 1,100,000
Intrinsic value of option exercised	$ 1,800,000
Number of options exercised		0
Restricted Stock Units [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of restricted stock awards granted	55,000	15,000
Weighted-average fair value of restricted stock unit granted	$ 14.19	$ 6.65
Former Chief Executive Officer’s [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Recognized share-based compensation awards	$ 0

Pension and Employee Benefit 52

Pension and Employee Benefit Plans - Components of Pension and Employee Benefit Expenses (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Pension Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Service cost	$ 113	$ 112
Interest cost	329	356
Expected return on plan assets	(431)	(457)
Amortization of net actuarial loss	57	53
Net periodic benefit cost	68	64
Health Care Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Interest cost	1	1
Amortization of loss	2	3
Net periodic benefit cost	$ 3	$ 4

Pension and Employee Benefit 53

Pension and Employee Benefit Plans - Additional Information (Detail) - USD ($)	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016	Dec. 31, 2016
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan contributions	$ 0	$ 29,000
Unfunded liability plans	11,100,000		$ 11,100,000
Pension Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Anticipated contribution to fund the pension plan during the reminder of the fiscal year	2,000,000
Health Care Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Anticipated contribution to fund the pension plan during the reminder of the fiscal year	$ 25,000

Income Taxes - Additional Infor

Income Taxes - Additional Information (Detail) - USD ($) $ in Millions	Mar. 31, 2017	Dec. 31, 2016
Income Tax Disclosure [Abstract]
Liability for uncertain tax positions totaled	$ 0.4	$ 0.4

Financial Instruments - Additio

Financial Instruments - Additional Information (Detail) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Mar. 31, 2017	Dec. 31, 2016	Mar. 31, 2016	Dec. 31, 2015
Fair Value Of Financial Instruments [Line Items]
Fair value of note payable	$ 5,300	$ 5,300
Cash and cash equivalents	44,999	45,824	$ 33,390	$ 34,194
Cash held outside United States, principally in Netherlands, United Kingdom, China, and Canada	28,900	25,600
Credit Agreement [Member]
Fair Value Of Financial Instruments [Line Items]
Fair value of debt issued	$ 121,000	$ 125,100

Commitments and Contingencies56

Commitments and Contingencies - Legal Matters - Additional Information (Detail)	3 Months Ended	12 Months Ended	183 Months Ended
	Mar. 31, 2017USD ($)Case	Dec. 31, 2014USD ($)	Mar. 31, 2017USD ($)Case	Dec. 31, 2016Case
Commitments And Contingencies Disclosure [Abstract]
Cumulative settlement payments for cases involving asbestos-related claims | $		$ 500,000	$ 1,200,000
Cumulative settlement payments made for cases involving asbestos-related claims including legal fees | $			1,100,000
Average cost per settled claim excluding legal fees | $	$ 27,000		$ 27,000
Number of claims pending | Case	228		228	229
Number of new cases filed | Case	15
Number of cases dismissed | Case	12
Number of cases settled | Case	4
Settlement recovering expense | $		$ 200,000
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)	3 Months Ended
	Mar. 31, 2017Segment
CECO Group, Inc. [Member]
Segment Reporting Information [Line Items]
Number of reportable segments	3

Business Segment Information 58

Business Segment Information - Net Sales and Income from Operation by Business Segment (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Segment Reporting Information [Line Items]
Net sales	$ 92,651	$ 103,175
Income from Operations	1,350	5,807
Environmental Segment [Member]
Segment Reporting Information [Line Items]
Net sales	35,929	39,122
Income from Operations	5,109	4,746
Energy Segment [Member]
Segment Reporting Information [Line Items]
Net sales	41,083	47,932
Income from Operations	1,613	5,196
Fluid Handling and Filtration Segment [Member]
Segment Reporting Information [Line Items]
Net sales	15,816	16,595
Income from Operations	3,309	3,198
Corporate and Other [Member]
Segment Reporting Information [Line Items]
Net sales	(177)	(474)
Income from Operations	(8,011)	(6,920)
Inter-segment Elimination [Member]
Segment Reporting Information [Line Items]
Income from Operations	$ (670)	$ (413)

Business Segment Information 59

Business Segment Information - Property and Equipment Additions, Depreciation and Amortization and Identifiable Assets (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016	Dec. 31, 2016
Segment Reporting Information [Line Items]
Property and Equipment Additions	$ 410	$ 212
Depreciation and amortization	4,138	5,195
Identifiable Assets	482,304		$ 498,634
Environmental Segment [Member]
Segment Reporting Information [Line Items]
Property and Equipment Additions	9	113
Depreciation and amortization	845	967
Identifiable Assets	119,044		118,680
Energy Segment [Member]
Segment Reporting Information [Line Items]
Property and Equipment Additions	236	86
Depreciation and amortization	2,064	2,802
Identifiable Assets	240,841		257,566
Fluid Handling and Filtration Segment [Member]
Segment Reporting Information [Line Items]
Property and Equipment Additions	149	9
Depreciation and amortization	1,198	1,394
Identifiable Assets	104,007		104,294
Corporate and Other [Member]
Segment Reporting Information [Line Items]
Property and Equipment Additions	16	4
Depreciation and amortization	31	$ 32
Identifiable Assets	$ 18,412		$ 18,094

Business Segment Information 60

Business Segment Information - Goodwill (Detail) - USD ($) $ in Thousands	Mar. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Goodwill
Goodwill	$ 170,293	$ 170,153	$ 220,163
Environmental Segment [Member]
Goodwill
Goodwill	48,203	48,203
Energy Segment [Member]
Goodwill
Goodwill	75,967	75,827
Fluid Handling and Filtration Segment [Member]
Goodwill
Goodwill	$ 46,123	$ 46,123

Business Segment Information 61

Business Segment Information - Intra-Segment and Inter-Segment Revenues (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Segment Reporting Information [Line Items]
Net sales	$ 92,651	$ 103,175
Environmental Segment [Member]
Segment Reporting Information [Line Items]
Net sales	35,929	39,122
Energy Segment [Member]
Segment Reporting Information [Line Items]
Net sales	41,083	47,932
Fluid Handling and Filtration Segment [Member]
Segment Reporting Information [Line Items]
Net sales	15,816	16,595
Corporate and Other [Member]
Segment Reporting Information [Line Items]
Net sales	(177)	(474)
Intra - Segment Sales [Member]
Segment Reporting Information [Line Items]
Net sales	(3,816)	(2,648)
Intra - Segment Sales [Member] | Environmental Segment [Member]
Segment Reporting Information [Line Items]
Net sales	(890)	(1,754)
Intra - Segment Sales [Member] | Energy Segment [Member]
Segment Reporting Information [Line Items]
Net sales	(2,308)	(491)
Intra - Segment Sales [Member] | Fluid Handling and Filtration Segment [Member]
Segment Reporting Information [Line Items]
Net sales	(618)	(403)
Operating Segments [Member]
Segment Reporting Information [Line Items]
Net sales	97,653	107,646
Operating Segments [Member] | Environmental Segment [Member]
Segment Reporting Information [Line Items]
Net sales	37,548	42,053
Operating Segments [Member] | Energy Segment [Member]
Segment Reporting Information [Line Items]
Net sales	43,413	48,581
Operating Segments [Member] | Fluid Handling and Filtration Segment [Member]
Segment Reporting Information [Line Items]
Net sales	16,692	17,012
Inter-segment Elimination [Member] | Environmental Inter-Segment Sales [Member]
Segment Reporting Information [Line Items]
Net sales	(186)	(172)
Inter-segment Elimination [Member] | Energy Inter-Segment Sales [Member]
Segment Reporting Information [Line Items]
Net sales	(823)	(1,040)
Inter-segment Elimination [Member] | Fluid Handling Filtration Inter-Segment Sales [Member]
Segment Reporting Information [Line Items]
Net sales		(137)
Inter-segment Elimination [Member] | Corporate And Other Inter-Segment Sales [Member]
Segment Reporting Information [Line Items]
Net sales	(177)	(474)
Inter-segment Elimination [Member] | Environmental Segment [Member] | Energy Inter-Segment Sales [Member]
Segment Reporting Information [Line Items]
Net sales	(729)	(1,040)
Inter-segment Elimination [Member] | Environmental Segment [Member] | Fluid Handling Filtration Inter-Segment Sales [Member]
Segment Reporting Information [Line Items]
Net sales		(137)
Inter-segment Elimination [Member] | Energy Segment [Member] | Environmental Inter-Segment Sales [Member]
Segment Reporting Information [Line Items]
Net sales	(22)	(158)
Inter-segment Elimination [Member] | Fluid Handling and Filtration Segment [Member] | Environmental Inter-Segment Sales [Member]
Segment Reporting Information [Line Items]
Net sales	(164)	(14)
Inter-segment Elimination [Member] | Fluid Handling and Filtration Segment [Member] | Energy Inter-Segment Sales [Member]
Segment Reporting Information [Line Items]
Net sales	(94)
Inter-segment Elimination [Member] | Corporate and Other [Member] | Corporate And Other Inter-Segment Sales [Member]
Segment Reporting Information [Line Items]
Net sales	$ (177)	$ (474)