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Senior Debt (Tables)

12 Months Ended

Dec. 31, 2019

Debt consisted of the following:

	December 31,
(table only in thousands)	2019			2018
Outstanding borrowings under Credit Facility Term loan payable in quarterly principal installments of $0.6 million through June 2021, $0.9 million through June 2023, and $1.3 million thereafter with balance due upon maturity in June 2024.
– Term loan	$	48,750		$	76,147
– Revolving Credit Loan		18,500			—
– Unamortized debt discount		(1,749	)		(1,691	)
Total outstanding borrowings under Credit Facility		65,501			74,456
Less: current portion		(2,500	)		—
Total debt, less current portion	$	63,001		$	74,456

Consolidated Balance Sheets - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Current assets:
Cash and cash equivalents	$ 35,602	$ 43,676
Restricted cash	1,356	762
Accounts receivable, net	68,434	53,225
Costs and estimated earnings in excess of billings on uncompleted contracts	34,805	29,694
Inventories, net	20,578	20,817
Prepaid expenses and other current assets	9,899	10,117
Prepaid and refundable income taxes	8,231	1,388
Assets held for sale	593	1,186
Total current assets	179,498	160,865
Property, plant and equipment, net	15,274	22,200
Right-of-use assets from operating leases	13,607
Goodwill	152,020	152,156
Intangible assets – finite life, net	31,283	35,959
Intangible assets – indefinite life	14,291	18,258
Deferred charges and other assets	2,664	3,144
Total assets	408,637	392,582
Current liabilities:
Current portion of debt	2,500
Accounts payable and accrued expenses	78,319	80,229
Billings in excess of costs and estimated earnings on uncompleted contracts	34,369	20,144
Note payable		1,700
Income taxes payable		1,813
Total current liabilities	115,188	103,886
Other liabilities	20,372	26,925
Debt, less current portion	63,001	74,456
Deferred income tax liability, net	5,943	8,755
Operating lease liabilities (Note 12)	11,116
Total liabilities	215,620	214,022
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, 35,275,465 and 34,953,825 shares issued and outstanding at December 31, 2019 and 2018, respectively	353	349
Capital in excess of par value	253,869	251,409
Accumulated loss	(46,344)	(59,427)
Accumulated other comprehensive loss	(14,505)	(13,415)
Stockholders' equity before treasury stock	193,373	178,916
Less treasury stock, at cost, 137,920 shares at December 31, 2019 and 2018	(356)	(356)
Total shareholders’ equity	193,017	178,560
Total liabilities and shareholders’ equity	$ 408,637	$ 392,582

Consolidated Statements of Comprehensive Income (Loss) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Statement Of Income And Comprehensive Income [Abstract]
Net income (loss)	$ 17,707	$ (7,121)	$ (3,029)
Other comprehensive income (loss), net of tax:
Translation (loss) income	(343)	(3,858)	4,021
Interest rate swap	(574)	76	180
Minimum pension liability adjustment	(184)	(22)	(78)
Comprehensive income (loss)	$ 16,606	$ (10,925)	$ 1,094

- Definition

The consolidated profit or loss for the period, net of income taxes, including the portion attributable to the noncontrolling interest.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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-Name Accounting Standards Codification
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-Section 45
-Paragraph 1A
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=118930883&loc=SL7669619-108580

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-Name Accounting Standards Codification
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-Paragraph 1A
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Reference 3: http://www.xbrl.org/2003/role/disclosureRef
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-Name Accounting Standards Codification
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-Paragraph 1B
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Reference 9: http://www.xbrl.org/2003/role/disclosureRef
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-Name Accounting Standards Codification
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-Paragraph 32
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-URI http://asc.fasb.org/extlink&oid=116874947&loc=SL4591552-111686

+ Details

Property, Plant and Equipment - Summary of Property, Plant and Equipment (Detail) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Gross	$ 34,540	$ 45,065
Less accumulated depreciation	(19,266)	(22,865)
Property, plant and equipment, net	15,274	22,200
Land [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Gross	147	1,623
Building and Improvements [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Gross	7,400	18,185
Machinery and Equipment [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Gross	$ 26,993	$ 25,257

Leases - Summary of Supplemental Cash Flow Information Related to Leases (Detail) $ in Thousands	12 Months Ended
	Dec. 31, 2019 USD ($)
Cash paid for amounts included in the measurement of lease liabilities
Operating cash flows from operating leases	$ 3,453
Operating cash flows from finance leases	360
Financing cash flows from finance leases	478
Operating leases	$ 3,547

Consolidated Statements of Cash Flows - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Cash flows from operating activities:
Net income (loss)	$ 17,707	$ (7,121)	$ (3,029)
Adjustments to reconcile net income (loss) to net cash provided by operating activities:
Depreciation and amortization	10,609	13,272	16,088
Unrealized foreign currency (gain) loss	(526)	836	(2,103)
Net gain on interest rate swaps	(248)	(276)	(327)
Impairment of property and equipment		300	695
Impairment of intangible assets and goodwill			7,168
Fair value adjustments to earnout liabilities		(330)	(6,610)
Earnout payments		(2,862)	(7,797)
Loss on sale of property and equipment	78	(217)	130
Loss on divestitures	70	4,390
Amortization of debt discount	1,060	1,143	1,033
Share based compensation expense	2,668	3,187	1,768
Bad debt expense	295	1,357	3,895
Inventory reserve expense	316	519	240
Deferred income tax benefit	(940)	(42)	(3,123)
Changes in operating assets and liabilities, net of divestitures:
Accounts receivable	(15,616)	(6,084)	14,107
Cost and estimated earnings of billings on uncompleted contracts	(5,029)	(4,557)	6,232
Inventories	(207)	(1,704)	887
Prepaid expenses and other current assets	(7,097)	773	3,530
Deferred charges and other assets	758	(416)	1,585
Accounts payable and accrued expenses	(4,028)	21,321	(15,847)
Billings in excess of costs and estimated earnings on uncompleted contracts	14,274	70	(15,186)
Income taxes payable	(1,671)	1,839	(1,827)
Other liabilities	(2,246)	(3,446)	5,061
Net cash provided by operating activities	10,227	21,952	6,570
Cash flows from investing activities:
Acquisitions of property and equipment	(5,655)	(3,090)	(1,028)
Net cash proceeds from divestitures		35,052
Net proceeds from sale of assets	509	6,296	368
Net cash (used in) provided by investing activities	(5,146)	38,258	(660)
Cash flows from financing activities:
Net (repayments) borrowings on revolving credit lines	(7,647)	(3,723)	2,269
Repayments of long-term debt	(2,950)	(41,356)	(11,168)
Deferred financing fees paid	(1,117)		(692)
Earnout payments			(7,396)
Proceeds from sale-leaseback transactions		800
Payments on capital leases and sale-leaseback financing liability	(478)	(675)	(711)
Proceeds from employee stock purchase plan, exercise of stock options, and dividend reinvestment plan	76	54	1,352
Dividends paid to common shareholders			(7,792)
Net cash used in financing activities	(12,116)	(44,900)	(24,138)
Effect of exchange rate changes on cash and cash equivalents	(445)	(1,531)	881
Net (decrease) increase in cash, cash equivalents and restricted cash	(7,480)	13,779	(17,347)
Cash, cash equivalents and restricted cash at beginning of year	44,438	30,659	48,006
Cash, cash equivalents and restricted cash at end of year	36,958	44,438	30,659
Cash paid during the period for:
Interest	3,549	5,559	5,686
Income taxes	$ 5,908	$ 10,205	$ 3,048

Pension and Employee Benefit Plans - Weighted-average Assumptions Used to Determine Net Periodic Benefit Cost (Detail)	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Compensation And Retirement Disclosure [Abstract]
Discount rate	4.05%	3.35%	3.85%
Expected return on assets	5.35%	5.75%	7.25%

Commitments and Contingencies - Additional Information (Detail)	12 Months Ended	216 Months Ended
	Dec. 31, 2019 USD ($) Case	Dec. 31, 2019 USD ($) Case	Dec. 31, 2018 Case
Commitments And Contingencies Disclosure [Abstract]
Cumulative settlement payments for cases involving asbestos-related claims \| $		$ 3,000,000
Cumulative settlement payments made for cases involving asbestos-related claims with all legal fees other than corporate counsel expenses \| $		2,800,000
Average cost per settled claim excluding legal fees \| $	$ 34,000	$ 34,000
Number of claims pending	209	209	208
Number of new cases filed	68
Number of cases dismissed	59
Number of cases settled	8
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.

Costs and Estimated Earnings on Uncompleted Contracts - Costs and Estimated Earnings on Uncompleted Contracts (Detail) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Costs In Excess Of Billings On Uncompleted Contracts Or Programs [Abstract]
Costs incurred on uncompleted contracts	$ 184,321	$ 174,168
Estimated earnings	77,326	67,427
Total costs and estimated earnings on uncompleted contracts, gross	261,647	241,595
Less billings to date	(261,211)	(232,045)
Total costs and estimated earnings on uncompleted contracts, net	436	9,550
Included in the accompanying consolidated balance sheets under the following captions:
Costs and estimated earnings in excess of billings on uncompleted contracts	34,805	29,694
Billings in excess of costs and estimated earnings on uncompleted contracts	(34,369)	(20,144)
Total costs and estimated earnings on uncompleted contracts, net	$ 436	$ 9,550

Goodwill and Intangible Assets

12 Months Ended

Dec. 31, 2019

Goodwill And Intangible Assets Disclosure [Abstract]

Goodwill and Intangible Assets

7.	Goodwill and Intangible Assets

(table only in thousands)	Energy Solutions segment			Industrial Solutions segment		Fluid Handling segment			Totals
Balance of goodwill at December 31, 2017	$	97,621		$	23,436	$	45,894		$	166,951
Divestitures		—			—		(14,317	)		(14,317	)
Foreign currency translation		(478	)		—		—			(478	)
Balance of goodwill at December 31, 2018		97,143			23,436		31,577			152,156
Foreign currency translation		(136	)		—		—			(136	)
Balance of goodwill at December 31, 2019	$	97,007		$	23,436	$	31,577		$	152,020

As of December 31, 2019 and 2018, the Company has an aggregate amount of goodwill acquired of $212.8 million and an aggregate amount of impairment losses of $60.7 million.

The Company’s indefinite lived intangible assets as of December 31, 2019 and 2018 consisted of the following:

	Tradenames
(table only in thousands)	2019			2018
Balance beginning of year	$	18,258		$	19,691
Transfer to finite life classification		(3,904	)		—
Divestitures		—			(1,340	)
Foreign currency adjustments		(63	)		(93	)
Balance end of year	$	14,291		$	18,258

During 2019, the Company reassessed the useful lives of certain tradenames and determined that $3.9 million of their tradenames would have useful lives of 10 years now versus indefinite.

The Company completes an annual (or more often if circumstances require) impairment assessment of its goodwill and indefinite life intangible assets on October 1 at the reporting unit level.

The Company bases its measurement of the fair value of a reporting unit using a 50/50 weighting of the income method and the market method. The income method is based on a discounted future cash flow approach that uses the significant assumptions of projected revenue, projected operational profit, terminal growth rates, and the cost of capital. Projected revenue and operational profit, and terminal growth rates were determined to be significant assumptions because they are three primary drivers of the projected cash flows in the discounted future cash flow approach. Cost of capital was also determined to be a significant assumption as it is the discount rate used to calculate the current fair value of those projected cash flows. The market method is based on financial multiples of comparable companies and applies a control premium. Significant estimates in the market approach include identifying similar companies with comparable business factors such as size, growth, profitability, risk and return on investment and assessing comparable revenue and operating income multiples in estimating the fair value of a reporting unit. Based on this analysis, the estimated fair value of all of our reporting units exceeded their carrying value as of October 1, 2019. There was no goodwill impairment in 2019 and 2018. There was goodwill impairment of $4.4 million in 2017.

The Company also performed an impairment analysis for all reporting units with indefinite life intangible assets as of October 1, 2019. The Company based its measurement of the fair value of the indefinite life intangible assets utilizing the relief from royalty method. The significant assumptions used under the relief from royalty method are projected revenue, royalty rates, terminal growth rates, and the cost of capital. Projected revenue, royalty rates and terminal growth rates were determined to be significant assumptions because they are three primary drivers of the projected royalty cash flows in the relief from royalty method. Cost of capital was also determined to be a significant assumption as it is the discount rate used to calculate the current fair value of those projected royalty cash flows. Changes in any of the significant assumptions used can materially affect the expected cash flows, and such impacts can result in material non-cash impairment charges. Under this approach, the estimated fair value of the indefinite life intangible assets exceeded their carrying value for all reporting units as of the testing date.

There was no impairment charge in 2019 and 2018. During the annual impairment test of indefinite life intangible assets in 2017, the carrying values of four reporting units’ indefinite life intangible assets exceeded their fair values. The Company recorded a $2.7 million impairment charge in 2017.

As described above, the fair value measurement methods used in the Company’s goodwill and indefinite life intangible assets impairment analyses utilizes a number of significant unobservable inputs or Level 3 assumptions. These assumptions include, among others, projections of our future operating results, the implied fair value of these assets using an income approach by preparing a discounted cash flow analysis and other subjective assumptions.

The Company’s finite lived intangible assets consisted of the following:

	December 31,
	2019						2018
(table only in thousands) Intangible assets – finite life	Cost			Accum. Amort.			Cost			Accum. Amort.
Technology	$	14,457		$	10,686		$	14,457		$	9,414
Customer lists		68,943			44,484			68,943			37,873
Noncompetition agreements		910			910			910			762
Tradenames		5,294			1,154			1,390			579
Foreign currency adjustments		(1,869	)		(782	)		(1,520	)		(407	)
Total finite life intangible assets	$	87,735		$	56,452		$	84,180		$	48,221

Amortization expense of finite life intangible assets was $8.5 million, $9.6 million and $11.5 million for 2019, 2018 and 2017, respectively. Amortization over the next five years for finite life intangibles is $6.8 million in 2020, $5.7 million in 2021, $4.8 million in 2022, $4.0 million in 2023, and $3.4 million in 2024.

Pension and Employee Benefit Plans - Schedule of Changes in Projected Benefit Obligations (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Change in projected benefit obligation:
Service cost			$ 415
Interest cost	$ 1,303	$ 1,190	1,314
Change in plan assets:
Fair value of plan assets at beginning of year	24,197
Fair value of plan assets at end of year	27,099	24,197
Other comprehensive income (loss):
Amount recognized in accumulated other comprehensive income (loss) - Prior service cost	$ (6,429)	$ (6,245)	$ (5,161)	$ (5,083)
Weighted-average assumptions used to determine benefit obligations for the year ended December 31:
Discount rate	4.05%	3.35%	3.85%
Pension Benefits [Member]
Change in projected benefit obligation:
Projected benefit obligation at beginning of year	$ 32,998	$ 36,327	$ 35,012
Service cost			415
Interest cost	1,303	1,190	1,314
Actuarial loss (gain)	3,704	(2,629)	1,787
Administrative expenses			(402)
Benefits paid	(2,020)	(1,890)	(1,799)
Projected benefit obligation at end of year	35,985	32,998	36,327
Change in plan assets:
Fair value of plan assets at beginning of year	24,197	26,836	24,063
Actual return (loss) on plan assets	4,431	(1,388)	3,152
Employer contribution	491	639	1,822
Administrative expenses			(402)
Benefits paid	(2,020)	(1,890)	(1,799)
Fair value of plan assets at end of year	27,099	24,197	26,836
Unfunded status	(8,886)	(8,801)	(9,491)
Defined benefit liability included in other liabilities	(8,886)	(8,801)	(9,491)
Deferred tax benefit associated with accumulated other comprehensive loss	2,183	2,116	3,153
Accumulated other comprehensive loss, net of tax	6,420	6,224	5,154
Other comprehensive income (loss):
Net loss	527	271	358
Amortization of net actuarial gain	(263)	(238)	(227)
Total recognized in other comprehensive income (loss)	264	33	131
Amount recognized in accumulated other comprehensive income (loss) - Prior service cost	$ 8,603	$ 8,340	$ 8,307
Weighted-average assumptions used to determine benefit obligations for the year ended December 31:
Discount rate	2.95%	4.05%	3.35%

Income Taxes - Schedule of Reconciliation of Uncertain Tax Position (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Reconciliation Of Unrecognized Tax Benefits Excluding Amounts Pertaining To Examined Tax Returns Roll Forward
Balance as of January 1	$ 939	$ 866
Additions for tax positions taken in prior years	4	73
Reductions of tax positions taken in prior years	(240)
Reductions for settlements on tax positions of prior years	(449)
Balance as of December 31	$ 254	$ 939

Business Segment Information - Property and Equipment Additions, Depreciation and Amortization and Identifiable Assets (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Segment Reporting Information [Line Items]
Property and equipment additions	$ 5,655	$ 3,090	$ 1,028
Depreciation and amortization	10,609	13,272	16,088
Identifiable assets	408,637	392,582
Energy Solutions Segment [Member]
Segment Reporting Information [Line Items]
Property and equipment additions	434	205	444
Depreciation and amortization	6,084	8,112	9,675
Identifiable assets	254,752	245,842
Industrial Solutions Segment [Member]
Segment Reporting Information [Line Items]
Property and equipment additions	402	756	160
Depreciation and amortization	1,320	1,067	1,488
Identifiable assets	64,725	54,179
Fluid Handling Solutions Segment [Member]
Segment Reporting Information [Line Items]
Property and equipment additions	3,239	1,226	382
Depreciation and amortization	2,795	3,517	4,754
Identifiable assets	71,572	73,910
Corporate and Other [Member]
Segment Reporting Information [Line Items]
Property and equipment additions	1,580	903	42
Depreciation and amortization	410	576	$ 171
Identifiable assets	$ 17,588	$ 18,651

Income Taxes - Schedule of Income Tax Provision (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Current:
Federal	$ (4,526)	$ 5,166	$ 6,234
State	(616)	1,660	388
Foreign	1,719	2,834	939
Current Income Tax Expense (Benefit), Total	(3,423)	9,660	7,561
Deferred:
Federal	(604)	1,144	(2,479)
State	(220)	56	114
Foreign	(116)	(1,242)	(758)
Deferred income tax expense (benefit)	(940)	(42)	(3,123)
Income tax provision from continuing operations	$ (4,363)	$ 9,618	$ 4,438

Property, Plant and Equipment - Additional Information (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Property Plant And Equipment [Abstract]
Depreciation expense	$ 2.1	$ 3.5	$ 4.5

Pension and Employee Benefit Plans - Details of Defined Benefit Pension Plan Asset Allocation by Asset Category (Detail)	Dec. 31, 2019	Dec. 31, 2018
Defined Benefit Plan Disclosure [Line Items]
Target Allocation	100.00%
Percentage of Plan Assets	100.00%	100.00%
Cash and cash equivalents [Member]
Defined Benefit Plan Disclosure [Line Items]
Target Allocation	0.00%
Percentage of Plan Assets	2.00%	3.00%
Equity Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Target Allocation	70.00%
Percentage of Plan Assets	73.00%	70.00%
Debt Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Target Allocation	30.00%
Percentage of Plan Assets	25.00%	27.00%

Divestitures

12 Months Ended

Dec. 31, 2019

Discontinued Operations And Disposal Groups [Abstract]

Divestitures

16.	Divestitures

Strobic Air Corporation

On March 30, 2018, the Company completed the sale of Strobic Air Corporation (“Strobic”) as part of its strategic decision to exit brands that do not align with the CECO portfolio to increase focus on better serving the energy and industrial solutions and fluid handling markets. The sales price was $28.5 million, subject to post-closing purchase price adjustments. The disposition resulted in a gain of $6.9 million, comprised of $27.9 million of net proceeds received as consideration after post-closing purchase price adjustments less net assets disposed of $18.8 million and transaction costs of $2.2 million. The net assets disposed of are primarily comprised of $13.0 million of goodwill, $2.3 million of definite-lived intangible assets and $1.2 million of indefinite-lived intangible assets allocated to the Strobic business. In 2017, Strobic reported $17.7 million in net sales and $1.6 million in income from operations. Strobic results through the date of disposition are included within income before income taxes in the Consolidated Statement of Operations and are reported within the Fluid Handling Solutions segment. The sale of Strobic did not constitute a significant strategic shift that will have a material impact on the Company’s ongoing operations and financial results.

Keystone Filter

On February 28, 2018, the Company completed the sale of the Keystone Filter brand (“Keystone”) as part of its strategic decision to exit brands that do not align with the CECO portfolio to increase focus on better serving energy and industrial solutions and fluid handling markets. The sales price was $7.5 million, subject to post-closing purchase price adjustments. The disposition resulted in a gain of $4.3 million, comprised of $7.2 million of net proceeds after post-closing purchase price adjustments less net assets disposed of $2.7 million and transaction costs of $0.2 million. Keystone results are reported within the Fluid Handling Solutions segment through the date of disposition.

Zhongli

On November 27, 2018, the Company completed the sale of Jiangyin Zhongli Industrial Technology Co. Ltd (“Zhongli”), a business in our Energy Solutions segment operating in China, for a price of $3.6 million. In the third quarter of 2018, we classified the assets and liabilities of Zhongli as held-for-sale. In connection with classifying this business as held-for-sale, GAAP required us to assess impairment by comparing the estimated selling price, less cost to sell to our carrying value in Zhongli. Based on this analysis, we recorded a $15.1 million loss. In 2019, the Company finalized a tax position related to the future carryback of the capital loss recognized in connection with the divestiture, resulting in a $4.4 million income tax benefit. The disposal of this business does not constitute a significant strategic shift that will have a material impact on the Company’s ongoing operations and financial results. Zhongli results are reported within the Energy Solutions segment through the date of disposition.

Nature of Business and Summary of Significant Accounting Policies - Schedule of Numerators and Denominators Used to Calculate Basic and Diluted Earnings Per Share (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Numerator (for basic and diluted earnings per share)
Net income (loss)	$ 17,707	$ (7,121)	$ (3,029)
Denominator
Basic	34,987,878	34,714,395	34,445,256
Common stock equivalents arising from stock options and restricted stock awards	496,000
Diluted weighted-average shares outstanding	35,484,273	34,714,395	34,445,256

- Definition

The consolidated profit or loss for the period, net of income taxes, including the portion attributable to the noncontrolling interest.

+ References

+ Details

Pension and Employee Benefit Plans - Components of Pension and Employee Benefit Expenses (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Compensation And Retirement Disclosure [Abstract]
Service cost			$ 415
Interest cost	$ 1,303	$ 1,190	1,314
Expected return on plan assets	(1,254)	(1,511)	(1,723)
Net amortization and deferral	263	238	227
Net periodic benefit cost (income)	$ 312	$ (83)	$ 233

Related Party Transactions

12 Months Ended

Dec. 31, 2019

Related Party Transactions

15.	Related Party Transactions

During 2019, 2018 and 2017 we paid fees of $0.2 million, $0.2 million and $0.3 million, respectively, for consulting services to Icarus, through which Jason DeZwirek, our Chairman of our Board, provides services. During 2019, 2018 and 2017, we paid fees of $0.1 million in each year for consulting services to JMP Fam Holdings Inc., through which Jonathan Pollack, a member of the Board of Directors, provides services. All services described above are based on verbal agreements with the Company. The Board of Directors approves the above services on an annual basis.

Inventories - Summary of Inventories (Detail) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Inventory Net [Abstract]
Raw materials	$ 15,218	$ 15,819
Work in process	7,328	6,098
Finished goods	654	807
Obsolescence allowance	(2,622)	(1,907)
Total inventories	$ 20,578	$ 20,817

Goodwill and Intangible Assets - Additional Information (Detail) $ in Millions	12 Months Ended
	Dec. 31, 2019 USD ($)	Dec. 31, 2018 USD ($)	Dec. 31, 2017 USD ($) Unit
Schedule Of Goodwill And Other Intangible Assets [Line Items]
Aggregate amount of goodwill acquired	$ 212.8	$ 212.8
Aggregate amount of impairment	60.7	60.7
Goodwill, impairment loss	0.0	0.0	$ 4.4
Impairment of intangible assets	0.0	0.0
Amortization expense of finite life intangible assets	8.5	$ 9.6	$ 11.5
Amortization expense of finite life intangibles for 2020	6.8
Amortization expense of finite life intangibles for 2021	5.7
Amortization expense of finite life intangibles for 2022	4.8
Amortization expense of finite life intangibles for 2023	4.0
Amortization expense of finite life intangibles for 2024	3.4
Four Reporting Units [Member]
Schedule Of Goodwill And Other Intangible Assets [Line Items]
Number of reporting units \| Unit			4
Impairment of intangible assets			$ 2.7
Certain Tradenames [Member]
Schedule Of Goodwill And Other Intangible Assets [Line Items]
Finite-lived intangible asset, fair value	$ 3.9
Intangible assets, Useful Life	10 years

Goodwill and Intangible Assets - Intangible Assets - Finite Lived (Detail) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Finite-Lived Intangible Assets [Line Items]
Cost	$ 87,735	$ 84,180
Accumulated Amortization	56,452	48,221
Technology [Member]
Finite-Lived Intangible Assets [Line Items]
Cost	14,457	14,457
Accumulated Amortization	10,686	9,414
Customer Lists [Member]
Finite-Lived Intangible Assets [Line Items]
Cost	68,943	68,943
Accumulated Amortization	44,484	37,873
Non-compete Agreements [Member]
Finite-Lived Intangible Assets [Line Items]
Cost	910	910
Accumulated Amortization	910	762
Tradename [Member]
Finite-Lived Intangible Assets [Line Items]
Cost	5,294	1,390
Accumulated Amortization	1,154	579
Foreign Currency Adjustments [Member]
Finite-Lived Intangible Assets [Line Items]
Cost	(1,869)	(1,520)
Accumulated Amortization	$ (782)	$ (407)

Accounts Receivable - Summary of Accounts Receivable (Detail) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Accounts, Notes, Loans and Financing Receivable [Line Items]
Contract receivables	$ 58,881	$ 48,826
Allowance for doubtful accounts	(2,582)	(2,897)
Total accounts receivable	68,434	53,225
Trade Accounts Receivable [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Trade receivables	$ 12,135	$ 7,296

Shareholders' Equity - Additional Information (Detail) - USD ($)		12 Months Ended
	Jun. 10, 2017	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017	May 16, 2017	Aug. 13, 2012
Class of Stock [Line Items]
Issuance of common stock dividend reinvestment plan		100,000,000	100,000,000
Number of stock option granted				128,000
Share-based compensation expense		$ 2,700,000	$ 3,100,000	$ 1,700,000
Tax benefit related to stock based compensation expense		$ 400,000	500,000	0
Discount from market price		15.00%
Employees offering dates intervals		6 months
Number of shares authorized in employee stock purchase plan		1,500,000
Employee stock purchase plan period		10 years
Employee stock purchase plan number of shares remain available for future issuance		1,300,000
Employee stock purchase plan expense		$ 60,000	90,000	$ 83,000
Estimated weighted-average fair value of stock options granted				$ 2.68
Expected volatility rate				39.00%
Expected term period				6 years 3 months 18 days
Risk-free interest rate				2.20%
Expected dividend rate				3.30%
Cash received from employee stock option exercised		7,000,000	100,000	$ 1,100,000
Intrinsic value of option exercised		300	$ 24,000,000	$ 2,600,000
Performance Units [Member]
Class of Stock [Line Items]
Maximum shares of common stock participant could receive upon vesting	77,778
Common stock price threshold consecutive trading days	30 days
Period to earn units based on stock price during thirty consecutive trading days	2 years
Performance Units [Member] \| Chief Executive Officer [Member]
Class of Stock [Line Items]
2017 stock options or stock awards, vesting period	3 years
Number of stock awards granted	700,000
Fair value of stock awards granted	$ 175,000
Restricted Stock and Performance Units [Member]
Class of Stock [Line Items]
Unrecognized compensation expense related to stock options and restricted stock		$ 6,400,000
Weighted average vesting period		2 years 1 month 6 days
Dividend Reinvestment Plan [Member]
Class of Stock [Line Items]
Issuance of common stock dividend reinvestment plan						750,000
2017 Plan [Member]
Class of Stock [Line Items]
Shares available for future grant		900,000
2017 Plan [Member] \| Common Stock [Member]
Class of Stock [Line Items]
Number of shares reserved for issuance					1,900,000
2017 Plan [Member] \| Minimum [Member]
Class of Stock [Line Items]
2017 stock options or stock awards, vesting period		3 years
2017 Plan [Member] \| Maximum [Member]
Class of Stock [Line Items]
2017 stock options or stock awards, vesting period		4 years
2017 Plan [Member] \| Employee Stock Option [Member]
Class of Stock [Line Items]
2017 stock options or stock awards, vesting period		4 years
2007 Plan [Member]
Class of Stock [Line Items]
Number of stock option granted		0

Leases - Schedule of components of lease expense (Detail)
$ in Thousands

12 Months Ended

Dec. 31, 2019

USD ($)

Leases [Abstract]

Operating lease cost

$ 3,612

^[1]

Finance lease cost:

Amortization of right-of-use assets

309

Interest on lease liability

(360)

Total finance lease cost

669

Total lease cost

$ 4,281

[1]	includes variable lease costs which are immaterial

Shareholders' Equity

12 Months Ended

Dec. 31, 2019

Equity [Abstract]

Shareholders' Equity

10.	Shareholders’ Equity

Dividends

Our dividend policy and the payment of cash dividends under that policy are subject to the Board of Director’s continuing determination that the dividend policy and the declaration of dividends are in the best interest of the Company’s shareholders. Future dividends and the dividend policy may be changed at the Company’s discretion at any time. Payment of dividends is also subject to the continuing compliance with our financial covenants under our Credit Facility. On November 6, 2017, the Board of Directors reviewed the Company’s dividend policy and determined that it would be in the best interest of the shareholders to suspend dividend payments.

During 2017, our Board declared the following quarterly cash dividends on our common stock:

Dividend Per Share	Record Date	Payment Date
$0.075	August 7, 2017	September 29, 2017
$0.075	May 10, 2017	June 30, 2017
$0.075	March 6, 2017	March 31, 2017

Effective August 13, 2012, the Company implemented a Dividend Reinvestment Plan (the “Plan”), under which the Company may issue up to 750,000 shares of common stock. The Plan provides a way for interested shareholders to increase their holdings in our common stock. Participation in the Plan is strictly voluntary and is open only to existing shareholders. The Plan has had limited participation.

Share-Based Compensation

The Company’s 2017 Equity and Incentive Compensation Plan (the “2017 Plan”) was approved by the Company’s stockholders on May 16, 2017 which replaced the 2007 Equity Incentive Plan (the “2007 Plan”). No further grants will be made under the 2007 Plan, but outstanding awards under the 2007 Plan will continue to be unaffected in accordance with their terms. The 2017 Plan permits the granting of stock options with an exercise price equal to or greater than the fair market value of the Company’s common stock at the date of the grant, and other stock-based awards, including appreciation rights, restricted stock, restricted stock units, performance shares and dividend equivalents. A total of 1.9 million shares of common stock were authorized for issuance. As of December 31, 2019, 0.9 million shares remain available for future issuance. Stock options granted to employees generally vest equally over a period of four years from the date of the grant. Stock awards granted to employees generally vest over a period of three to four years from the date of the grant.

On June 10, 2017, the Company granted 700,000 performance units to our Chief Executive Officer with a fair value of $175,000 and are being expensed over the vesting period of three years. The maximum shares of common stock that the participant could receive upon vesting is 77,778 shares. The performance units are earned based upon the Company’s stock price during 30 consecutive trading days within a specified date range of approximately two years. The performance units are settled in the Company’s common stock subsequent to this specified date range. The estimated grant date fair value and compensation expense of each performance share was determined on the date of grant by using the Monte Carlo valuation model.

Share-based compensation expense for stock options and restricted stock awards under these plans was $2.7 million, $3.1 million and $1.7 million for 2019, 2018 and 2017, respectively. The tax benefit related to share based compensation expense was $0.4 million, $0.5 million and zero in 2019, 2018 and 2017, respectively.

Employee Stock Purchase Plan

The 2009 Employee Stock Purchase Plan (“ESPP”) was approved by shareholders on May 21, 2009. The ESPP is administered by the Compensation Committee. The ESPP allows employees to purchase shares of common stock at a 15% discount from market price and pay for the shares through payroll deductions. Eligible employees can enter the plan at specific “offering dates” that occur in six-month intervals.

The aggregate maximum number of shares of the Company’s common stock that may be granted under the ESPP is 1,500,000 shares over the ten-year term of the ESPP, subject to adjustment in the event there is a reorganization, merger, consolidation, recapitalization, reclassification, stock split-up, or similar transaction with respect to the common stock. As of December 31, 2019, 1.3 million shares remain available for future issuance.

The Company recognized employee stock purchase plan expense of $60,000, $90,000 and $83,000 in 2019, 2018 and 2017, respectively.

Stock Options

The estimated weighted-average fair value of stock options granted during 2017, was $2.68 per option, 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 2017, the Company utilized weighted-average volatility factors of 39%.

Expected Term: Due to limited historical exercise data, the Company utilizes the simplified method of determining the expected term based on the vesting schedules and terms of the stock options. For 2017, the Company utilized weighted-average expected term factors of 6.3 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 2017, the Company utilized a weighted-average risk-free interest rate factor of 2.2%.

Expected Dividends: The Company utilized a weighted average expected dividend rate of 3.3% to value options granted during 2017.

Information related to all stock options under the 2017 Plan and 2007 Plan for 2019, 2018 and 2017 is shown in the tables below:

(shares in thousands)	Shares			Weighted Average Exercise Price		Weighted Average Remaining Contractual Term	Aggregate Intrinsic Value ($000)
Outstanding at December 31, 2018		507		$	10.43	5.2 years
Forfeitures		(31	)		6.84
Exercised		(66	)		4.10
Outstanding at December 31, 2019		410			11.45	4.7 years	$	32
Exercisable at December 31, 2019		355			12.08	4.6 years	$	29

(shares in thousands)	Shares			Weighted Average Exercise Price		Weighted Average Remaining Contractual Term	Aggregate Intrinsic Value ($000)
Outstanding at December 31, 2017		655		$	10.53	6.0 years
Forfeitures		(132	)		11.53
Exercised		(16	)		5.55
Outstanding at December 31, 2018		507			10.43	5.2 years	$	186
Exercisable at December 31, 2018		402			10.52	4.6 years	$	186

(shares in thousands)	Shares			Weighted Average Exercise Price		Weighted Average Remaining Contractual Term	Aggregate Intrinsic Value ($000)
Outstanding at December 31, 2016		1,519		$	10.25	6.1 years
Granted		128			9.24
Forfeitures		(700	)		12.44
Exercised		(292	)		3.92
Outstanding at December 31, 2017		655			10.53	6.0 years	$	78
Exercisable at December 31, 2017		463			10.49	5.2 years	$	78

Restricted Stock Awards

Information related to restricted stock awards under the 2017 Plan and 2007 Plan for 2019, 2018 and 2017 is shown in the table below. The fair value of restricted stock awards is based on the price of the stock in the open market on the date of the grant. The fair value of the restricted stock awards is recorded as compensation expense on a straight-line basis over the vesting periods of the awards and we account for forfeitures when they occur.

(shares in thousands)	Shares			Weighted Average Grant Date Fair Value
Nonvested at December 31, 2016		509		$	9.64
Granted		405			9.88
Vested		(92	)		9.78
Forfeited		(268	)		9.70
Nonvested at December 31, 2017		554			9.75
Granted		963			5.21
Vested		(217	)		9.50
Forfeited		(49	)		9.80
Nonvested at December 31, 2018		1,251			6.30
Granted		464			7.50
Vested		(310	)		7.24
Forfeited		(84	)		6.36
Nonvested at December 31, 2019		1,321			6.80

The Company received $7,000, $0.1 million and $1.1 million of cash from employees exercising options in 2019, 2018 and 2017, respectively. The intrinsic value of options exercised during 2019, 2018 and 2017 was $0.3 million, $24,000 and $2.6 million, respectively. Unrecognized compensation expense related to nonvested shares of stock options, restricted stock and performance units was $6.4 million at December 31, 2019 and will be recognized over a weighted average vesting period of 2.1 years.

Income Taxes - Schedule of Reconciliation of Income Tax Provision and Statutory Rate (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Income Tax Disclosure [Abstract]
Tax expense at statutory rate	$ 2,802	$ 524	$ 494
Increase (decrease) in tax resulting from:
State income tax, net of federal benefit	(707)	1,337	367
Change in uncertain tax position reserves	(236)	73	465
Permanent differences related to divestitures	(4,201)	7,048
Other Permanent differences	(842)	693	1,026
Impact of rate differences and adjustments	884	57	(20)
United States tax credits and incentives	(2,124)	(354)	(240)
Foreign tax credits and incentives	(1,386)	(1,088)
Change in valuation allowance	198	1,521	1,044
Revaluation of deferred tax assets and liabilities			(4,819)
Net deemed distribution on repatriation of foreign earnings		(1,713)	6,426
Foreign withholding taxes on repatriation of foreign earnings	646	666
Earnout income		(69)	(1,779)
Domestic production activities deduction			(235)
Intangible asset and goodwill impairment			1,789
Net effect GILTI and FDII	399	(172)
Other	204	1,095	(80)
Income tax provision from continuing operations	$ (4,363)	$ 9,618	$ 4,438

Accounts Receivable - Additional Information (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Receivables [Abstract]
Amount billed but not received under retainage provisions in contracts	$ 900	$ 900
Retainage receivables on contracts minimum period	1 year
Retainage receivables on contracts maximum period	2 years
Provision for doubtful accounts	$ 295	1,357	$ 3,895
Charge-offs	$ 600	$ 800	$ 1,500

Divestitures - Additional Information (Detail) - USD ($) $ in Thousands				12 Months Ended
	Nov. 27, 2018	Mar. 30, 2018	Feb. 28, 2018	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Income Statement Balance Sheet And Additional Disclosures By Disposal Groups Including Discontinued Operations [Line Items]
Gain (loss) on disposal				$ (70)	$ (4,390)
Income tax benefit				(4,363)	$ 9,618	$ 4,438
Strobic Air Corporation [Member]
Income Statement Balance Sheet And Additional Disclosures By Disposal Groups Including Discontinued Operations [Line Items]
Sale price, subject to post-closing purchase price adjustments		$ 28,500
Gain (loss) on disposal		6,900
Net proceeds after adjustments		27,900
Net assets disposed		18,800
Transaction-related cost		2,200
Goodwill		13,000
Net sales						17,700
Income from operations						$ 1,600
Strobic Air Corporation [Member] \| Definite-Lived Intangible Assets [Member]
Income Statement Balance Sheet And Additional Disclosures By Disposal Groups Including Discontinued Operations [Line Items]
Intangible assets		2,300
Strobic Air Corporation [Member] \| Indefinite-Lived Intangible Assets [Member]
Income Statement Balance Sheet And Additional Disclosures By Disposal Groups Including Discontinued Operations [Line Items]
Intangible assets		$ 1,200
Keystone Filter [Member]
Income Statement Balance Sheet And Additional Disclosures By Disposal Groups Including Discontinued Operations [Line Items]
Sale price, subject to post-closing purchase price adjustments			$ 7,500
Gain (loss) on disposal			4,300
Net proceeds after adjustments			7,200
Net assets disposed			2,700
Transaction-related cost			$ 200
Zhongli [Member]
Income Statement Balance Sheet And Additional Disclosures By Disposal Groups Including Discontinued Operations [Line Items]
Gain (loss) on disposal	$ (15,100)
Disposal group, consideration receivable	$ 3,600
Income tax benefit				$ 4,400

Inventories

12 Months Ended

Dec. 31, 2019

Inventory Disclosure [Abstract]

Inventories

5.	Inventories

Inventories consisted of the following:

	December 31,
(table only in thousands)	2019			2018
Raw materials	$	15,218		$	15,819
Work in process		7,328			6,098
Finished goods		654			807
Obsolescence allowance		(2,622	)		(1,907	)
Total inventories	$	20,578		$	20,817

Amounts credited to the allowance for obsolete inventory and charged to cost of sales amounted to $0.3 million, $0.5 million and $0.2 million during 2019, 2018 and 2017, respectively. Items charged to the allowance for inventory write-offs were $0.1 million, $0.3 million and $0.6 million, during 2019, 2018 and 2017, respectively.

Business Segment Information - Additional Information (Detail) $ in Millions	12 Months Ended
	Dec. 31, 2019 USD ($) Segment	Dec. 31, 2018 USD ($)	Dec. 31, 2017
Segment Reporting Information [Line Items]
Sales outside country, percentage	30.00%	33.00%	32.00%
Europe [Member]
Segment Reporting Information [Line Items]
Sales outside country, percentage	11.50%
Long lived assets located outside country	$ 13.3
Asia [Member]
Segment Reporting Information [Line Items]
Sales outside country, percentage	11.00%
Outside United States [Member]
Segment Reporting Information [Line Items]
Long lived assets located outside country	$ 16.9	$ 19.1
Net Sales [Member] \| Customer Concentration Risk [Member]
Segment Reporting Information [Line Items]
Major customer	10.00%	10.00%	10.00%
Accounts Receivable [Member] \| Customer Concentration Risk [Member]
Segment Reporting Information [Line Items]
Major customer	10.00%	10.00%	10.00%
CECO Group, Inc. [Member]
Segment Reporting Information [Line Items]
Number of reportable segments \| Segment	3

Income Taxes - Additional Information (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Income Taxes [Line Items]
Liability for deferred taxes on undistributed foreign earnings	$ 0.7
State and local net operating loss carry forwards year start	2020
State and local net operating loss carry forwards year end	2039
Valuation reserve	$ 5.8	$ 5.5
Additional income tax expense (benefit)	$ 0.2	1.5	$ 1.0
Income tax positions recognized, minimum percentage	50.00%
Expense for interest and penalties	$ 0.1	$ 0.3	$ 0.3
State and Local Jurisdiction [Member]
Income Taxes [Line Items]
Net operating loss carry forward	35.9
Overseas Jurisdictions [Member]
Income Taxes [Line Items]
Net operating loss carry forward	$ 10.4
State and Foreign Authorities [Member]
Income Taxes [Line Items]
Open tax years	2014 2015 2016 2017 2018 2019

Commitments and Contingencies

12 Months Ended

Dec. 31, 2019

Commitments And Contingencies Disclosure [Abstract]

Commitments and Contingencies

13.	Commitments and Contingencies

Legal Proceedings

Asbestos cases

Our subsidiary, Met-Pro, beginning in 2002 began to be named in asbestos-related lawsuits filed against a large number of industrial companies including, in particular, those in the pump and fluid handling industries. In management’s opinion, the complaints typically have been vague, general and speculative, alleging that Met-Pro, along with the numerous other defendants, sold unidentified asbestos-containing products and engaged in other related actions which caused injuries (including death) and loss to the plaintiffs. Counsel has advised that more recent cases typically allege more serious claims of mesothelioma. The Company’s insurers have hired attorneys who, together with the Company, are vigorously defending these cases. Many cases have been dismissed after the plaintiff fails to produce evidence of exposure to Met-Pro’s products. In those cases, where evidence has been produced, the Company’s experience has been that the exposure levels are low and the Company’s position has been that its products were not a cause of death, injury or loss. The Company has been dismissed from or settled a large number of these cases. Cumulative settlement payments from 2002 through December 31, 2019 for cases involving asbestos-related claims were $3.0 million which together with all legal fees other than corporate counsel expenses; $2.8 million have been paid by the Company’s insurers. The average cost per settled claim, excluding legal fees, was approximately $34,000.

Based upon the most recent information available to the Company regarding such claims, there were a total of 209 cases pending against the Company as of December 31, 2019 (with Illinois, New York, Pennsylvania and West Virginia having the largest number of cases), as compared with 208 cases that were pending as of December 31, 2018. During 2019, 68 new cases were filed against the Company, and the Company was dismissed from 59 cases and settled 8 cases. Most of the pending cases have not advanced beyond the early stages of discovery, although a number of cases are on schedules leading to or are scheduled for trial. The Company believes that its insurance coverage is adequate for the cases currently pending against the Company and for the foreseeable future, assuming a continuation of the current volume, nature of cases and settlement amounts. However, the Company has no control over the number and nature of cases that are filed against it, nor as to the financial health of its insurers or their position as to coverage. The Company also presently believes that none of the pending cases will have a material adverse impact upon the Company’s results of operations, liquidity or financial condition.

Other

The Company is also a party to routine contract and employment-related litigation matters 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 reserves 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 - Goodwill (Detail) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Segment Reporting Information [Line Items]
Goodwill	$ 152,020	$ 152,156	$ 166,951
Energy Solutions Segment [Member]
Segment Reporting Information [Line Items]
Goodwill	97,007	97,143	97,621
Industrial Solutions Segment [Member]
Segment Reporting Information [Line Items]
Goodwill	23,436	23,436	$ 23,436
Fluid Handling Solutions Segment [Member]
Segment Reporting Information [Line Items]
Goodwill	$ 31,577	$ 31,577

Property, Plant and Equipment

12 Months Ended

Dec. 31, 2019

Property Plant And Equipment [Abstract]

Property, Plant and Equipment

6.	Property, Plant and Equipment

	December 31,
(table only in thousands)	2019			2018
Land	$	147		$	1,623
Building and improvements		7,400			18,185
Machinery and equipment		26,993			25,257
Property, plant and equipment, gross		34,540			45,065
Less accumulated depreciation		(19,266	)		(22,865	)
Property, plant and equipment, net	$	15,274		$	22,200

Depreciation expense was $2.1 million, $3.5 million and $4.5 million for 2019, 2018 and 2017, respectively.

Leases - Schedule of Maturities of Lease Liabilities (Detail) - USD ($) $ in Thousands	Dec. 31, 2019	Jan. 01, 2019
Operating leases
2020	$ 3,161
2021	2,756
2022	2,103
2023	1,944
2024	1,778
Thereafter	4,810
Total minimum lease payments	16,552
Less imputed interest	(2,826)
Lease liability	13,726	$ 13,300
Finance leases
2020	855
2021	872
2022	889
2023	907
2024	925
Thereafter	5,484
Total minimum lease payments	9,932
Less imputed interest	(2,076)
Lease liability	$ 7,856

Goodwill and Intangible Assets - Goodwill / Tradename (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Goodwill [Line Items]
Goodwill, beginning balance	$ 152,156	$ 166,951
Goodwill, divestitures		(14,317)
Goodwill, foreign currency translation	(136)	(478)
Goodwill, ending balance	152,020	152,156
Tradename, beginning balance	18,258	19,691
Tradename, transfers to finite life classification	(3,904)
Tradename, divestitures		(1,340)
Tradename, foreign currency adjustments	(63)	(93)
Tradename, ending balance	14,291	18,258
Energy Solutions Segment [Member]
Goodwill [Line Items]
Goodwill, beginning balance	97,143	97,621
Goodwill, foreign currency translation	(136)	(478)
Goodwill, ending balance	97,007	97,143
Industrial Solutions Segment [Member]
Goodwill [Line Items]
Goodwill, beginning balance	23,436	23,436
Goodwill, ending balance	23,436	23,436
Fluid Handling Segment [Member]
Goodwill [Line Items]
Goodwill, beginning balance	31,577	45,894
Goodwill, divestitures		(14,317)
Goodwill, ending balance	$ 31,577	$ 31,577

Income Taxes (Tables)

12 Months Ended

Dec. 31, 2019

Income Tax Disclosure [Abstract]

Schedule of Income (Loss) Before Income Taxes

Income (loss) before income taxes was generated in the United States and globally as follows:

(table only in thousands)	2019		2018			2017
Domestic	$	11,565	$	6,230		$	3,891
Foreign		1,779		(3,733	)		(2,482	)
	$	13,344	$	2,497		$	1,409

Schedule of Income Tax Provision

Income tax (benefit) expense consisted of the following for the years ended December 31:

(table only in thousands)	2019			2018			2017
Current:
Federal	$	(4,526	)	$	5,166		$	6,234
State		(616	)		1,660			388
Foreign		1,719			2,834			939
		(3,423	)		9,660			7,561
Deferred:
Federal		(604	)		1,144			(2,479	)
State		(220	)		56			114
Foreign		(116	)		(1,242	)		(758	)
		(940	)		(42	)		(3,123	)
	$	(4,363	)	$	9,618		$	4,438

The income tax (benefit) expense differs from the statutory rate due to the following:

(table only in thousands)	2019			2018			2017
Tax expense at statutory rate	$	2,802		$	524		$	494
Increase (decrease) in tax resulting from:
State income tax, net of federal benefit		(707	)		1,337			367
Change in uncertain tax position reserves		(236	)		73			465
Permanent differences related to divestitures		(4,201	)		7,048			—
Other Permanent differences		(842	)		693			1,026
Impact of rate differences and adjustments		884			57			(20	)
United States tax credits and incentives		(2,124	)		(354	)		(240	)
Foreign tax credits and incentives		(1,386	)		(1,088	)		—
Change in valuation allowance		198			1,521			1,044
Revaluation of deferred tax assets and liabilities		—			—			(4,819	)
Net deemed distribution on repatriation of foreign earnings		—			(1,713	)		6,426
Foreign withholding taxes on repatriation of foreign earnings		646			666			—
Earnout income		—			(69	)		(1,779	)
Domestic production activities deduction		—			—			(235	)
Intangible asset and goodwill impairment		—			—			1,789
Net effect GILTI and FDII		399			(172	)		—
Other		204			1,095			(80	)
	$	(4,363	)	$	9,618		$	4,438

Schedule of Net Deferred Tax Assets and Liabilities

Deferred income taxes reflect the future tax consequences of temporary differences between the carrying amounts of assets and liabilities for financial reporting purposes and the amounts used for income tax purposes and tax credit carry forwards. The net deferred tax liabilities consisted of the following at December 31:

	December 31
(table only in thousands)	2019			2018
Gross deferred tax assets:
Accrued expenses	$	1,167		$	417
Reserves on assets		1,566			1,276
Share-based compensation awards		410			459
Minimum pension		1,946			2,153
Net operating loss carry-forwards		3,141			3,478
Tax credit carry-forwards		2,940			2,352
Other		360			—
Depreciation		140			—
Valuation allowances		(5,810	)		(5,474	)
		5,860			4,661
Gross deferred tax liabilities:
Depreciation		—			(646	)
Goodwill and intangibles		(9,855	)		(10,907	)
Prepaid expenses and inventory		(554	)		(798	)
Withholding tax on unremitted foreign earnings		(646	)		(551	)
Revenue recognition		(748	)		(514	)
		(11,803	)		(13,416	)
Net deferred tax liabilities	$	(5,943	)	$	(8,755	)

Schedule of Reconciliation of Uncertain Tax Position

A reconciliation of the beginning and ending amount of uncertain tax position reserves included in other liabilities on the Consolidated Balance Sheets is as follows:

(table only in thousands)	2019			2018
Balance as of January 1,	$	939		$	866
Additions for tax positions taken in prior years		4			73
Statute expirations		—			—
Reductions of tax positions taken in prior years		(240	)		—
Reductions for settlements on tax positions of prior years		(449	)		—
Balance as of December 31,	$	254		$	939

Accounts Payable and Accrued Expenses (Tables)

12 Months Ended

Dec. 31, 2019

Payables And Accruals [Abstract]

Summary of Accounts Payable and Accrued Expenses

Accounts payable and accrued expense consisted of the following:

	December 31,
(table only in thousands)	2019		2018
Trade accounts payable, including amounts due to subcontractors	$	48,762	$	51,984
Compensation and related benefits		5,712		7,578
Accrued warranty		4,664		3,384
Contract liability		5,666		6,541
Short-term operating lease liability		2,610		—
Other		10,905		10,742
Total accounts payable and accrued expenses	$	78,319	$	80,229

Income Taxes - Schedule of Net Deferred Tax Assets and Liabilities (Detail) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Gross deferred tax assets:
Accrued expenses	$ 1,167	$ 417
Reserves on assets	1,566	1,276
Share-based compensation awards	410	459
Minimum pension	1,946	2,153
Net operating loss carry-forwards	3,141	3,478
Tax credit carry-forwards	2,940	2,352
Other	360
Depreciation	140
Valuation allowances	(5,810)	(5,474)
Total Deferred Tax Assets	5,860	4,661
Gross deferred tax liabilities:
Depreciation		(646)
Goodwill and intangibles	(9,855)	(10,907)
Prepaid expenses and inventory	(554)	(798)
Withholding tax on unremitted foreign earnings	(646)	(551)
Revenue recognition	(748)	(514)
Total Deferred Tax Liabilities	(11,803)	(13,416)
Net deferred tax liabilities	$ (5,943)	$ (8,755)

Quarterly Data (Unaudited) (Tables)

12 Months Ended

Dec. 31, 2019

Quarterly Financial Information Disclosure [Abstract]

Schedule of Quarterly Financial Information

Earnings per share amounts are computed independently each quarter. Accordingly, the sum of each quarter’s per share amount may not equal the total per share amount for the respective year.

	Quarter
(table only in thousands, except per share data)	First		Second			Third			Fourth
Year ended December 31, 2019
Net sales	$	86,011	$	81,179		$	85,266		$	89,413
Gross profit		28,432		26,846			28,777			30,044
Net income		1,864		5,515			1,931			8,397
Basic earnings per share	$	0.05	$	0.16		$	0.06		$	0.24
Diluted earnings per share	$	0.05	$	0.15		$	0.05		$	0.24

Year ended December 31, 2018
Net sales	$	74,139	$	81,089		$	88,256		$	93,854
Gross profit		25,561		27,525			28,674			29,777
Net income (loss)		5,763		(901	)		(12,915	)		931
Basic earnings (loss) per share	$	0.17	$	(0.03	)	$	(0.37	)	$	0.03
Diluted earnings (loss) per share	$	0.17	$	(0.03	)	$	(0.37	)	$	0.03

Document and Entity Information - USD ($) $ in Millions	12 Months Ended
Document and Entity Information - USD ($) $ in Millions	Dec. 31, 2019	Feb. 28, 2020	Jun. 28, 2019
Cover [Abstract]
Document Type	10-K
Amendment Flag	false
Document Period End Date	Dec. 31, 2019
Document Fiscal Year Focus	2019
Document Fiscal Period Focus	FY
Entity Registrant Name	CECO ENVIRONMENTAL CORP.
Trading Symbol	CECE
Entity Central Index Key	0000003197
Entity Current Reporting Status	Yes
Entity Voluntary Filers	No
Entity Interactive Data Current	Yes
Current Fiscal Year End Date	--12-31
Entity Filer Category	Accelerated Filer
Entity Well Known Seasoned Issuer	No
Entity Public Float			$ 248.9
Entity Common Stock Shares Outstanding		35,284,847
Entity Shell Company	false
Entity Small Business	true
Entity Emerging Growth Company	false
Title of 12(b) Security	Common Stock, par value $0.01 per share
Security Exchange Name	NASDAQ
Entity File Number	0-7099
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	13-2566064
Entity Address, Address Line One	14651 North Dallas Parkway
Entity Address, Address Line Two	Suite 500
Entity Address, City or Town	Dallas
Entity Address, State or Province	TX
Entity Address, Postal Zip Code	75254
City Area Code	214
Local Phone Number	357-6181
Document Annual Report	true
Document Transition Report	false
Documents Incorporated by Reference [Text Block]	Portions of the definitive Proxy Statement for the 2020 Annual Meeting of Stockholders, which is to be filed with the Securities and Exchange Commission within 120 days of the fiscal year ended December 31, 2019, are incorporated by reference into Part III of this Annual Report to the extent described herein.

Inventories (Tables)

12 Months Ended

Dec. 31, 2019

Inventory Disclosure [Abstract]

Summary of Inventories

Inventories consisted of the following:

	December 31,
(table only in thousands)	2019			2018
Raw materials	$	15,218		$	15,819
Work in process		7,328			6,098
Finished goods		654			807
Obsolescence allowance		(2,622	)		(1,907	)
Total inventories	$	20,578		$	20,817

Leases

12 Months Ended

Dec. 31, 2019

Leases [Abstract]

Leases

12.

Leases

Our leasing activity is primarily related to buildings used for manufacturing, warehousing, sales, and administrative activities. We determine if an arrangement is a lease at inception. Many of our lease agreements contain renewal options; however, we do not recognize ROU assets or lease liabilities for renewal periods unless it is determined that we are reasonably certain of renewing the lease at inception or when a triggering event occurs. Some of our lease agreements contain rent escalation clauses, free-rent periods, or other lease concessions. We recognize our minimum rental expense on a straight-line basis based on the fixed components of a lease arrangement. Variable lease costs represent amounts that are not fixed in nature and are not tied to an index or rate, and are recognized as incurred. Our variable lease costs are not material.

In determining our ROU assets and lease liabilities, we apply a discount rate to the minimum lease payments within each lease agreement. ASU 2016-02 requires us to use the rate of interest that a lessee would have to pay to borrow on a collateralized basis over a similar term an amount equal to the lease payments in a similar economic environment. When we cannot readily determine the discount rate implicit in the lease agreement, we utilize our fully collateralized incremental borrowing rate. To estimate our specific incremental borrowing rates we consider, among other factors, interest rates on our existing credit facilities, risk-free rates, the types of assets being leased, and the term of the leases.

The components of lease expense were as follows:

(table only in thousands)	December 31, 2019
Operating lease cost (a)	$	3,612
Finance lease cost:
Amortization of right-of-use assets		309
Interest on lease liability		360
Total finance lease cost		669
Total lease cost	$	4,281
(a) includes variable lease costs which are immaterial

Supplemental cash flow information related to leases was as follows:

(table only in thousands)	December 31, 2019
Cash paid for amounts included in the measurement of lease liabilities
Operating cash flows from operating leases	$	3,453
Operating cash flows from finance leases	$	360
Financing cash flows from finance leases	$	478
Right of use assets obtained in exchange for lease obligations
Operating leases	$	3,547

Supplemental balance sheet information related to leases was as follows:

(table only in thousands)	December 31, 2019
Operating leases
Right-of-use assets from operating leases	$	13,607

Accounts payable and accrued expenses	$	2,610
Operating lease liabilities		11,116
Total operating lease liabilities	$	13,726

Finance leases
Property, plant and equipment, net	$	3,255

Accounts payable and accrued expenses	$	516
Other liabilities		7,340
Total finance lease liabilities	$	7,856

Weighted-average remaining lease term
Operating leases		9 years
Finance leases		12 years
Weighted-average discount rate
Operating leases		5.3%
Finance leases		4.5%

As of December 31, 2019, maturities of lease liabilities were as follows:

(table only in thousands)	Operating Leases			Finance Leases
2020		3,161			855
2021		2,756			872
2022		2,103			889
2023		1,944			907
2024		1,778			925
Thereafter		4,810			5,484
Total minimum lease payments	$	16,552		$	9,932
Less imputed interest		(2,826	)		(2,076	)
Lease liability	$	13,726		$	7,856

Disclosures related to periods prior to the adoption of the New Lease Standard

As previously disclosed in our Annual Report on Form 10-K, for the year ended December 31, 2018 and under previous lease accounting standards, future minimum lease payments for operating leases having initial or remaining noncancelable lease terms in excess of one year would have been as follows:

(table only in thousands)	December 31, 2018
2019	$	2,745
2020		1,880
2021		1,454
2022		931
2023		851
Thereafter		2,278
Total	$	10,139

Leases - Schedule of Future Minimum Lease Payments for Operating Leases (Detail) $ in Thousands	Dec. 31, 2018 USD ($)
Leases [Abstract]
2019	$ 2,745
2020	1,880
2021	1,454
2022	931
2023	851
Thereafter	2,278
Total	$ 10,139

Consolidated Balance Sheets (Parenthetical) - $ / shares	Dec. 31, 2019	Dec. 31, 2018
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	35,275,465	34,953,825
Common Stock, shares outstanding	35,275,465	34,953,825
Treasury stock, shares	137,920	137,920

Consolidated Statements of Shareholders' Equity (Parenthetical) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Statement Of Stockholders Equity [Abstract]
Adjustment for minimum pension liability, tax	$ 66	$ 17	$ 48
Adjustment for interest rate swap liability, tax	$ 236	$ 111	$ 103

Leases (Tables)

12 Months Ended

Dec. 31, 2019

Leases [Abstract]

Schedule of Components of Lease Expense

The components of lease expense were as follows:

(table only in thousands)	December 31, 2019
Operating lease cost (a)	$	3,612
Finance lease cost:
Amortization of right-of-use assets		309
Interest on lease liability		360
Total finance lease cost		669
Total lease cost	$	4,281
(a) includes variable lease costs which are immaterial

Summary of Supplemental Cash Flow Information Related to Leases

Supplemental cash flow information related to leases was as follows:

(table only in thousands)	December 31, 2019
Cash paid for amounts included in the measurement of lease liabilities
Operating cash flows from operating leases	$	3,453
Operating cash flows from finance leases	$	360
Financing cash flows from finance leases	$	478
Right of use assets obtained in exchange for lease obligations
Operating leases	$	3,547

Summary of Supplemental Balance Sheet Information Related to Leases

Supplemental balance sheet information related to leases was as follows:

(table only in thousands)	December 31, 2019
Operating leases
Right-of-use assets from operating leases	$	13,607

Accounts payable and accrued expenses	$	2,610
Operating lease liabilities		11,116
Total operating lease liabilities	$	13,726

Finance leases
Property, plant and equipment, net	$	3,255

Accounts payable and accrued expenses	$	516
Other liabilities		7,340
Total finance lease liabilities	$	7,856

Schedule of Lease Terms and Discount Rate

Weighted-average remaining lease term
Operating leases		9 years
Finance leases		12 years
Weighted-average discount rate
Operating leases		5.3%
Finance leases		4.5%

Schedule of Maturities of Lease Liabilities

As of December 31, 2019, maturities of lease liabilities were as follows:

(table only in thousands)	Operating Leases			Finance Leases
2020		3,161			855
2021		2,756			872
2022		2,103			889
2023		1,944			907
2024		1,778			925
Thereafter		4,810			5,484
Total minimum lease payments	$	16,552		$	9,932
Less imputed interest		(2,826	)		(2,076	)
Lease liability	$	13,726		$	7,856

Schedule of Future Minimum Lease Payments for Operating Leases

(table only in thousands)	December 31, 2018
2019	$	2,745
2020		1,880
2021		1,454
2022		931
2023		851
Thereafter		2,278
Total	$	10,139

Business Segment Information

12 Months Ended

Dec. 31, 2019

Segment Reporting [Abstract]

Business Segment Information

17.	Business Segment Information

The Company’s operations are organized and reviewed by management along its product lines or end markets that the segment serves and are presented in three reportable segments. The results of the segments are reviewed through to the “Income from operations” line on the Consolidated Statements of Operations. The accounting policies of the segments are the same as those in the consolidated financial statements. Except for the information reported on a segment basis, the Company does not accumulate net sales information by product or service and therefore, the Company does not disclose net sales by product or service because to do so would be impractical.

During the first quarter of 2019, as a result of further evaluating the Company’s operating structure, management determined that a minor realignment of the Company’s segments would help maximize growth and improve customer experience. As a result of this minor realignment, the operating results of the reportable segments Fluid Handling Solutions and Industrial Solutions have been reclassified to have their results align for the years ended December 31, 2019, 2018 and 2017.

The Company’s reportable segments are organized as groups of similar products and services, as described as follows:

•

Energy Solutions segment: Our Energy Solutions segment serves the Energy market, where we are a key part of helping meet the global demand for Clean Energy through our highly engineered and tailored emissions management, silencers and separation solutions and services. Our offerings improve air quality and solves fluid handling needs with market leading technologies, efficiently designed, and customized solutions for the power generation, oil & gas, and petrochemical industries.

•

Industrial Solutions segment: Our Industrial Solutions segment serves the Air Pollution Control market where our aim is to address the growing need to protect the air we breathe and help our customers’ desires for sustainability upgrades beyond carbon footprint issues. Our clean air pollution control, collection and ventilation technologies improve air quality with a compelling solution that enable our customers to reduce their carbon footprint, lower energy consumption, minimize waste and meet compliance targets for toxic emissions, fumes, volatile organic compounds, and industrial odors.

•

Fluid Handling Solutions segment: Our Fluid Handling Solutions segment offers unique pump and filtration solutions that maintain safe and clean operations in some of the most harsh and toxic environments. In this market, we provide solutions for mission-critical applications to a wide variety of industries including, but not limited to, plating and metal finishing, automotive, food and beverage, chemical, petrochemical, pharmaceutical, wastewater treatment, desalination and the aquarium & aquaculture markets.

	2019		2018		2017
Net Sales (less intra-, inter-segment sales)
(table only in thousands)
Energy Solutions segment	$	210,319	$	211,185	$	188,955
Industrial Solutions segment		91,347		80,699	$	93,960
Fluid Handling Solutions segment		40,203		45,455	$	63,037
Corporate and Other (1)		—		—		(901	)
Net sales	$	341,869	$	337,339	$	345,051

(1)	Includes adjustment for revenue on intercompany jobs.

	2019			2018			2017
Income (loss) from Operations
(table only in thousands)
Energy Solutions segment	$	33,886		$	28,797		$	14,565
Industrial Solutions segment		5,679			6,308			8,800
Fluid Handling Solutions segment		5,558			7,730			14,059
Corporate and Other (2)		(27,133	)		(32,833	)		(26,649	)
Eliminations		—			—			(2,751	)
Income from operations	$	17,990		$	10,002		$	8,024

(2)Includes corporate compensation, professional services, information technology, acquisition and integration expenses, and other general, administrative corporate expenses and loss on divestitures

	2019		2018		2017
Property and Equipment Additions
(table only in thousands)
Energy Solutions segment	$	434	$	205	$	444
Industrial Solutions segment		402		756		160
Fluid Handling Solutions segment		3,239		1,226		382
Corporate and Other		1,580		903		42
Property and equipment additions	$	5,655	$	3,090	$	1,028

	2019		2018		2017
Depreciation and Amortization
(table only in thousands)
Energy Solutions segment	$	6,084	$	8,112	$	9,675
Industrial Solutions segment		1,320		1,067		1,488
Fluid Handling Solutions segment		2,795		3,517		4,754
Corporate and Other		410		576		171
Depreciation and amortization	$	10,609	$	13,272	$	16,088

	December 31,
	2019		2018
Identifiable Assets
(table only in thousands)
Energy Solutions segment	$	254,752	$	245,842
Industrial Solutions segment		64,725		54,179
Fluid Handling Solutions segment		71,572		73,910
Corporate and Other (3)		17,588		18,651
Identifiable assets	$	408,637	$	392,582

(3)	Corporate assets primarily consist of cash and income tax related assets.

	December 31,
	2019		2018
Goodwill
(table only in thousands)
Energy Solutions segment	$	97,007	$	97,143
Industrial Solutions segment		23,436		23,436
Fluid Handling Solutions segment		31,577		31,577
Goodwill	$	152,020	$	152,156

Intra-segment and Inter-segment Revenues

The Company has divisions that sell to each other within segments (intra-segment sales) and between segments (inter-segment sales) as indicated in the following tables:

	Year Ended December 31, 2019
						Less Inter-Segment Sales
	Total Sales		Intra - Segment Sales			Industrial			Energy			Fluid			Corp and Other		Net Sales to Outside Customers
Net Sales
(table only in thousands)
Energy Solutions segment	$	217,359	$	(6,650	)	$	(390	)	$	—		$	—		$	—	$	210,319
Industrial Solutions segment		101,369		(8,278	)		—			(1,677	)		(67	)		—		91,347
Fluid Handling Solutions segment		41,717		(1,300	)		(214	)		—			—			—		40,203
Corporate and Other		—		—			—			—			—			—		—
Net Sales	$	360,445	$	(16,228	)	$	(604	)	$	(1,677	)	$	(67	)	$	—	$	341,869

	Year Ended December 31, 2018
						Less Inter-Segment Sales
	Total Sales		Intra - Segment Sales			Industrial			Energy			Fluid			Corp and Other		Net Sales to Outside Customers
Net Sales
(table only in thousands)
Energy Solutions segment	$	220,334	$	(7,912	)	$	(1,232	)	$	—		$	(5	)	$	—	$	211,185
Industrial Solutions segment		84,424		(3,084	)		—			(600	)		(41	)		—		80,699
Fluid Handling Solutions segment		47,561		(1,483	)		(616	)		(7	)		—			—		45,455
Corporate and Other		—		—			—			—			—			—		—
Net Sales	$	352,319	$	(12,479	)	$	(1,848	)	$	(607	)	$	(46	)	$	—	$	337,339

	Year Ended December 31, 2017
						Less Inter-Segment Sales
	Total Sales		Intra - Segment Sales			Industrial			Energy			Fluid			Corp and Other			Net Sales to Outside Customers
Net Sales
(table only in thousands)
Energy Solutions segment	$	197,897	$	(8,833	)	$	(109	)	$	—		$	—		$	—		$	188,955
Industrial Solutions segment		98,037		(3,235	)		—			(787	)		(55	)		—			93,960
Fluid Handling Solutions segment		67,530		(3,169	)		(492	)		(832	)		—			—			63,037
Corporate and Other (4)		—		—			—			—			—			(901	)		(901	)
Net Sales	$	363,464	$	(15,237	)	$	(601	)	$	(1,619	)	$	(55	)	$	(901	)	$	345,051

(4) Includes adjustment for revenue on intercompany jobs.

No single customer represented greater than 10% of consolidated net sales or accounts receivable for 2019, 2018, or 2017.

For 2019, 2018, and 2017, sales to customers outside the United States, including export sales, accounted for approximately 30%, 33%, and 32%, respectively, of consolidated net sales. The largest portion of export sales in 2019 was destined for Europe (11.5%), and Asia (11.0%). Of consolidated long-lived assets, $16.9 million and $19.1 million were located outside of the United States as of December 31, 2019 and 2018, respectively. The largest portion of long-lived assets located outside the United States at December 31, 2019 were in Europe ($13.3 million).

Goodwill and Intangible Assets (Tables)

12 Months Ended

Dec. 31, 2019

Goodwill And Intangible Assets Disclosure [Abstract]

Goodwill / Tradename

(table only in thousands)	Energy Solutions segment			Industrial Solutions segment		Fluid Handling segment			Totals
Balance of goodwill at December 31, 2017	$	97,621		$	23,436	$	45,894		$	166,951
Divestitures		—			—		(14,317	)		(14,317	)
Foreign currency translation		(478	)		—		—			(478	)
Balance of goodwill at December 31, 2018		97,143			23,436		31,577			152,156
Foreign currency translation		(136	)		—		—			(136	)
Balance of goodwill at December 31, 2019	$	97,007		$	23,436	$	31,577		$	152,020

	Tradenames
(table only in thousands)	2019			2018
Balance beginning of year	$	18,258		$	19,691
Transfer to finite life classification		(3,904	)		—
Divestitures		—			(1,340	)
Foreign currency adjustments		(63	)		(93	)
Balance end of year	$	14,291		$	18,258

Summary of Finite Lived Intangible Assets

The Company’s finite lived intangible assets consisted of the following:

	December 31,
	2019						2018
(table only in thousands) Intangible assets – finite life	Cost			Accum. Amort.			Cost			Accum. Amort.
Technology	$	14,457		$	10,686		$	14,457		$	9,414
Customer lists		68,943			44,484			68,943			37,873
Noncompetition agreements		910			910			910			762
Tradenames		5,294			1,154			1,390			579
Foreign currency adjustments		(1,869	)		(782	)		(1,520	)		(407	)
Total finite life intangible assets	$	87,735		$	56,452		$	84,180		$	48,221

Senior Debt

12 Months Ended

Dec. 31, 2019

Debt Disclosure [Abstract]

Senior Debt

9.	Senior debt

Debt consisted of the following:

	December 31,
(table only in thousands)	2019			2018
Outstanding borrowings under Credit Facility Term loan payable in quarterly principal installments of $0.6 million through June 2021, $0.9 million through June 2023, and $1.3 million thereafter with balance due upon maturity in June 2024.
– Term loan	$	48,750		$	76,147
– Revolving Credit Loan		18,500			—
– Unamortized debt discount		(1,749	)		(1,691	)
Total outstanding borrowings under Credit Facility		65,501			74,456
Less: current portion		(2,500	)		—
Total debt, less current portion	$	63,001		$	74,456

In 2019, the Company made repayments of $3.0 million on the term loan and net repayments on the revolving credit lines of $7.6 million. Scheduled principal payments under our Credit Facility are $2.5 million in 2020, $3.1 million in 2021, $3.7 million in 2022, $4.5 million in 2023, and $53.5 million in 2024.

Credit Facility

On June 11, 2019, the Company entered into a Second Amended and Restated Credit Agreement (the “Credit Facility”). The Credit Facility amended and restated the Company’s prior credit agreement. Pursuant to the Credit Facility, the lenders provided a term loan in the aggregate principal amount of $50.0 million and the lenders increased their senior secured revolving credit commitments to the aggregate principal amount of $140.0 million. This revolving credit commitment allows the Company the ability to borrow loans denominated in different currencies. Additionally, the Credit Facility extended the maturity date to June 11, 2024, reduced interest rates, and redefined certain financial covenants.

As of December 31, 2019 and 2018, $11.0 million and $29.3 million of letters of credit were outstanding, respectively. Total unused credit availability under the Company’s senior secured term loan and senior secured revolver loan with sub-facilities for letters of credit, swing-line loans and senior secured multi-currency loans was $82.3 million and $50.7 million at December 31, 2019 and 2018, respectively. Revolving loans may be borrowed, repaid and reborrowed until June 11, 2024, at which time all outstanding balances of the Credit Facility must be repaid.

At the Company’s option, revolving loans and the term loans accrue interest at a per annum rate based on either the highest of (a) the federal funds rate plus 0.5%, (b) the Agent’s prime lending rate, (c) one-month LIBOR plus 1.00%, plus a margin ranging from 1.0% to 2.0% depending on the Company’s Consolidated Leverage Ratio (“Base Rate”), or (d) a Eurocurrency Rate (as defined in the Credit Agreement) plus 1.0% to 2.0% depending on the Company’s Consolidated Leverage Ratio. Interest on swing line loans is the Base Rate.

Interest on Base Rate loans is payable quarterly in arrears on the last day of each calendar quarter and at maturity. Interest on Eurocurrency Rate loans is payable on the last date of each applicable Interest Period (as defined in the agreement), but in no event less than once every three months and at maturity. The weighted average stated interest rate on outstanding borrowings was 3.80% and 5.27% at December 31, 2019 and 2018, respectively.

In connection with the Credit Facility, the Company terminated its existing interest rate swap agreement. The fair value of the interest rate swap was zero and an asset of $0.5 million as of December 31, 2019 and 2018, respectively, and is classified within the “Deferred charges and other assets” on the Consolidated Balance Sheets. The Company designated the interest rate swap as an effective hedge until the date of termination; therefore, the changes to the fair value of the interest rate swap were recorded in other comprehensive income, until the date of termination. Upon termination of the swap agreement, $0.2 million previously recognized in other comprehensive income was recognized into income during the year ended December 31, 2019 and is classified within “Other income (expense), net” on the Consolidated Statements of Operations.

Under the terms of the Credit Facility, the Company is required to maintain certain financial covenants, including the maintenance of a Consolidated Net Leverage Ratio (as defined in the Credit Facility). Through September 30, 2020, the maximum Consolidated Net Leverage Ratio is 3.75, after which time it will decrease to 3.50 through September 30, 2021. The Consolidated Net Leverage Ratio will then decrease to 3.25 until the end of the term of the Credit Facility.

The Company has granted a security interest in substantially all of its assets to secure its obligations pursuant to the Credit Facility. The Company’s obligations under the Credit Agreement are guaranteed by the Company’s U.S. subsidiaries and such guaranty obligations are secured by a security interest on substantially all the assets of such subsidiaries, including certain real property. The Company’s obligations under the Credit Agreement may also be guaranteed by the Company’s material foreign subsidiaries to the extent no adverse tax consequences would result to the Company.

In connection with the Credit Facility, the Company paid $1.1 million in customary closing fees during 2019 that were deferred and classified as a debt discount. Additionally, during 2019, $0.4 million of the existing debt discount was expensed, and classified as interest expense, as a result of the debt modification.

As of December 31, 2019 and 2018, the Company was in compliance with all related financial and other restrictive covenants under the Credit Facility.

Foreign Debt

The Company has a number of bank guarantee facilities and bilateral lines of credit in various foreign countries currently supported by cash, letters of credit or pledged assets and collateral under the Credit Facility. The Credit Facility allows letters of credit and bank guarantee issuances of up to $50.0 million from the bilateral lines of credit secured by pledged assets and collateral under the Credit Facility. As of December 31, 2019, $16.6 million in bank guarantees were outstanding. In addition, a subsidiary of the Company located in the Netherlands has a Euro-denominated bank guarantee agreement secured by local assets under which $3.4 million in bank guarantees were outstanding as of December 31, 2019. As of December 31, 2019, the borrowers of these facilities and agreements were in compliance with all related financial and other restrictive covenants.

Quarterly Data (Unaudited)

12 Months Ended

Dec. 31, 2019

Quarterly Financial Information Disclosure [Abstract]

Quarterly Data (Unaudited)

18.	Quarterly Data (Unaudited)

Earnings per share amounts are computed independently each quarter. Accordingly, the sum of each quarter’s per share amount may not equal the total per share amount for the respective year.

	Quarter
(table only in thousands, except per share data)	First		Second			Third			Fourth
Year ended December 31, 2019
Net sales	$	86,011	$	81,179		$	85,266		$	89,413
Gross profit		28,432		26,846			28,777			30,044
Net income		1,864		5,515			1,931			8,397
Basic earnings per share	$	0.05	$	0.16		$	0.06		$	0.24
Diluted earnings per share	$	0.05	$	0.15		$	0.05		$	0.24

Year ended December 31, 2018
Net sales	$	74,139	$	81,089		$	88,256		$	93,854
Gross profit		25,561		27,525			28,674			29,777
Net income (loss)		5,763		(901	)		(12,915	)		931
Basic earnings (loss) per share	$	0.17	$	(0.03	)	$	(0.37	)	$	0.03
Diluted earnings (loss) per share	$	0.17	$	(0.03	)	$	(0.37	)	$	0.03

Accounts Payable and Accrued Expenses

12 Months Ended

Dec. 31, 2019

Payables And Accruals [Abstract]

Accounts Payable and Accrued Expenses

8.	Accounts Payable and Accrued Expenses

Accounts payable and accrued expense consisted of the following:

	December 31,
(table only in thousands)	2019		2018
Trade accounts payable, including amounts due to subcontractors	$	48,762	$	51,984
Compensation and related benefits		5,712		7,578
Accrued warranty		4,664		3,384
Contract liability		5,666		6,541
Short-term operating lease liability		2,610		—
Other		10,905		10,742
Total accounts payable and accrued expenses	$	78,319	$	80,229

Income Taxes

12 Months Ended

Dec. 31, 2019

Income Tax Disclosure [Abstract]

Income Taxes

14.	Income Taxes

Income (loss) before income taxes was generated in the United States and globally as follows:

(table only in thousands)	2019		2018			2017
Domestic	$	11,565	$	6,230		$	3,891
Foreign		1,779		(3,733	)		(2,482	)
	$	13,344	$	2,497		$	1,409

Certain of the Company’s undistributed earnings of its foreign subsidiaries are not permanently reinvested, as management intends to repatriate foreign-held cash as needed to meet domestic cash needs for operating, investing, and financing activities. A liability of $0.7 million has been recorded for the deferred taxes on such undistributed foreign earnings. The deferred taxes are attributable primarily to the foreign withholding taxes that would become payable should the Company repatriate cash held in its foreign operations.

Income tax (benefit) expense consisted of the following for the years ended December 31:

(table only in thousands)	2019			2018			2017
Current:
Federal	$	(4,526	)	$	5,166		$	6,234
State		(616	)		1,660			388
Foreign		1,719			2,834			939
		(3,423	)		9,660			7,561
Deferred:
Federal		(604	)		1,144			(2,479	)
State		(220	)		56			114
Foreign		(116	)		(1,242	)		(758	)
		(940	)		(42	)		(3,123	)
	$	(4,363	)	$	9,618		$	4,438

The income tax (benefit) expense differs from the statutory rate due to the following:

(table only in thousands)	2019			2018			2017
Tax expense at statutory rate	$	2,802		$	524		$	494
Increase (decrease) in tax resulting from:
State income tax, net of federal benefit		(707	)		1,337			367
Change in uncertain tax position reserves		(236	)		73			465
Permanent differences related to divestitures		(4,201	)		7,048			—
Other Permanent differences		(842	)		693			1,026
Impact of rate differences and adjustments		884			57			(20	)
United States tax credits and incentives		(2,124	)		(354	)		(240	)
Foreign tax credits and incentives		(1,386	)		(1,088	)		—
Change in valuation allowance		198			1,521			1,044
Revaluation of deferred tax assets and liabilities		—			—			(4,819	)
Net deemed distribution on repatriation of foreign earnings		—			(1,713	)		6,426
Foreign withholding taxes on repatriation of foreign earnings		646			666			—
Earnout income		—			(69	)		(1,779	)
Domestic production activities deduction		—			—			(235	)
Intangible asset and goodwill impairment		—			—			1,789
Net effect GILTI and FDII		399			(172	)		—
Other		204			1,095			(80	)
	$	(4,363	)	$	9,618		$	4,438

	December 31
(table only in thousands)	2019			2018
Gross deferred tax assets:
Accrued expenses	$	1,167		$	417
Reserves on assets		1,566			1,276
Share-based compensation awards		410			459
Minimum pension		1,946			2,153
Net operating loss carry-forwards		3,141			3,478
Tax credit carry-forwards		2,940			2,352
Other		360			—
Depreciation		140			—
Valuation allowances		(5,810	)		(5,474	)
		5,860			4,661
Gross deferred tax liabilities:
Depreciation		—			(646	)
Goodwill and intangibles		(9,855	)		(10,907	)
Prepaid expenses and inventory		(554	)		(798	)
Withholding tax on unremitted foreign earnings		(646	)		(551	)
Revenue recognition		(748	)		(514	)
		(11,803	)		(13,416	)
Net deferred tax liabilities	$	(5,943	)	$	(8,755	)

As of December 31, 2019, the Company has utilized substantially all of its federal net operating loss carry forwards. State and local net operating loss carry forwards total $35.9 million, which expire from 2020 to 2039. The Company has recorded a valuation allowance on certain of these net operating loss carry forwards to reflect expected realization. The Company also has net operating loss carry forwards in foreign jurisdictions totaling $10.4 million. A full valuation allowance has been established against substantially all of these losses in foreign jurisdictions. As of December 31, 2019 and 2018, the Company has recorded a valuation reserve in the amount of $5.8 million and $5.5 million, respectively. The changes in the valuation allowance resulted in additional income tax expense of $0.2 million, $1.5 million, and $1.0 million in 2019, 2018, and 2017, respectively.

In assessing the realizability of deferred tax assets, management considers whether it is more likely than not that some portion or all of the deferred tax assets will not be realized. The ultimate realization of deferred tax assets is dependent upon the generation of future taxable income during the periods in which those temporary differences become deductible. Management considers the scheduled reversal of deferred tax liabilities (including the impact of available carryback and carry forward periods), projected future taxable income, and tax-planning strategies in making this assessment. Based on this assessment, management believes it is more likely than not that the Company will realize the benefits of these deductible differences, net of the existing valuation allowances at December 31, 2019. The amount of the deferred tax assets considered realizable, however, could be reduced in the near term if estimates of future taxable income during the carryforward period are reduced.

The Company accounts for uncertain tax positions pursuant to FASB ASC Topic 740. The Company recognizes the effect of income tax positions only if those positions are more likely than not of being sustained. Recognized income tax positions are measured at the largest amount that is greater than 50% likely of being realized. Changes in recognition or measurement are reflected in the period in which the change in judgment occurs. A reconciliation of the beginning and ending amount of uncertain tax position reserves included in other liabilities on the Consolidated Balance Sheets is as follows:

(table only in thousands)	2019			2018
Balance as of January 1,	$	939		$	866
Additions for tax positions taken in prior years		4			73
Statute expirations		—			—
Reductions of tax positions taken in prior years		(240	)		—
Reductions for settlements on tax positions of prior years		(449	)		—
Balance as of December 31,	$	254		$	939

The Company recognizes interest and penalties related to uncertain tax positions in income tax expense. The reserve for uncertain tax positions includes $0.1 million, $0.3 million and $0.3 million of interest and penalties as of December 31, 2019, 2018 and 2017, respectively. The favorable settlement of all uncertain tax positions would impact the Company’s effective income tax rate. Tax years going back to 2014 remain open for all significant state and foreign authorities.

Consolidated Statements of Operations - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Income Statement [Abstract]
Net sales	$ 341,869	$ 337,339	$ 345,051
Cost of sales	227,770	225,802	231,857
Gross profit	114,099	111,537	113,194
Selling and administrative expenses	85,978	87,462	88,975
Amortization and earnout expenses	8,499	9,683	7,132
Restructuring expenses, net	1,097		1,895
Acquisition and integration expenses	465
Loss on divestitures, net of selling costs	70	4,390
Intangible asset and goodwill impairment			7,168
Income from operations	17,990	10,002	8,024
Other income (expense), net	751	(365)	106
Interest expense	(5,397)	(7,140)	(6,721)
Income before income taxes	13,344	2,497	1,409
Income tax (benefit) expense	(4,363)	9,618	4,438
Net income (loss)	$ 17,707	$ (7,121)	$ (3,029)
Income (loss) per share:
Basic	$ 0.51	$ (0.21)	$ (0.09)
Diluted	$ 0.50	$ (0.21)	$ (0.09)
Weighted average number of common shares outstanding:
Basic	34,987,878	34,714,395	34,445,256
Diluted	35,484,273	34,714,395	34,445,256

Senior Debt - Summary of Debt (Detail) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Debt Instrument [Line Items]
Total outstanding borrowings under the Credit Facility	$ 65,501	$ 74,456
Less: current portion	(2,500)
Debt, less current portion	63,001	74,456
Term Loan [Member]
Debt Instrument [Line Items]
Total outstanding borrowings under the Credit Facility	48,750	76,147
Revolving Credit Loan [Member]
Debt Instrument [Line Items]
Revolving Credit Loan	18,500
Term Debt [Member]
Debt Instrument [Line Items]
Unamortized debt discount	$ (1,749)	$ (1,691)

- Definition

The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement.

+ References + Details

Leases - Schedule of Lease Terms and Discount Rate (Detail)	Dec. 31, 2019
Weighted-average remaining lease term
Operating leases	9 years
Finance leases	12 years
Weighted-average discount rate
Operating leases	5.30%
Finance leases	4.50%

Pension and Employee Benefit Plans - Disclosure of Fair Value Measurements of Pension Plan Assets (Detail) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Defined Benefit Plans and Other Postretirement Benefit Plans [Line Items]
Pension assets, at fair value	$ 27,099	$ 24,197
Equity Securities [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans [Line Items]
Pension assets, at fair value	19,702	16,994
Debt Securities [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans [Line Items]
Pension assets, at fair value	6,819	6,518
Level 1 [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans [Line Items]
Pension assets, at fair value	27,099	24,197
Level 1 [Member] \| Equity Securities [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans [Line Items]
Pension assets, at fair value	19,702	16,994
Level 1 [Member] \| Debt Securities [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans [Line Items]
Pension assets, at fair value	6,819	6,518
Cash and cash equivalents [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans [Line Items]
Pension assets, at fair value	578	685
Cash and cash equivalents [Member] \| Level 1 [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans [Line Items]
Pension assets, at fair value	$ 578	$ 685

Pension and Employee Benefit Plans

12 Months Ended

Dec. 31, 2019

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 accrual of future benefits for all participants who are non-union employees was frozen effective December 31, 2008. The plan is funded in accordance with the funding requirements of the Employee Retirement Income Security Act of 1974.

The following tables set forth the plan changes in benefit obligations, plan assets and funded status on the measurement dates, December 31, 2019, 2018 and 2017, and amounts recognized in our Consolidated Balance Sheets within other long-term liabilities.


(table only in thousands)	2019			2018			2017
Change in projected benefit obligation:
Projected benefit obligation at beginning of year	$	32,998		$	36,327		$	35,012
Service cost		—			—			415
Interest cost		1,303			1,190			1,314
Actuarial loss (gain)		3,704			(2,629	)		1,787
Administrative expenses		—			—			(402	)
Benefits paid		(2,020	)		(1,890	)		(1,799	)
Projected benefit obligation at end of year		35,985			32,998			36,327
Change in plan assets:
Fair value of plan assets at beginning of year		24,197			26,836			24,063
Actual return (loss) on plan assets		4,431			(1,388	)		3,152
Employer contribution		491			639			1,822
Administrative expenses		—			—			(402	)
Benefits paid		(2,020	)		(1,890	)		(1,799	)
Fair value of plan assets at end of year		27,099			24,197			26,836
Unfunded status	$	(8,886	)	$	(8,801	)	$	(9,491	)
Defined benefit liability included in other liabilities	$	(8,886	)	$	(8,801	)	$	(9,491	)
Deferred tax benefit associated with accumulated other comprehensive loss		2,183			2,116			3,153
Accumulated other comprehensive loss, net of tax		6,420			6,224			5,154
Other comprehensive income (loss):
Net loss	$	527		$	271		$	358
Amortization of net actuarial gain		(263	)		(238	)		(227	)
Total recognized in other comprehensive income (loss)	$	264		$	33		$	131
Amount recognized in accumulated other comprehensive income (loss) - Prior service cost	$	8,603		$	8,340		$	8,307
Weighted-average assumptions used to determine benefit obligations for the year ended December 31:
Discount rate		2.95	%		4.05	%		3.35	%

Benefits under the plan is not based on wages and, therefore, future wage adjustments have no effect on the projected benefit obligation.

During 2019, 2018 and 2017, the Company updated the mortality tables (RP-2018 Total Mortality Table, RP-2017 Total Mortality Table, and RP-2016 Total Mortality Table for each respective year) in the underlying assumptions used to determine the benefit obligation.

The details of net periodic benefit cost for pension benefits included in the accompanying Consolidated Statements of Operations for the years ended December 31, 2019, 2018 and 2017 are as follows:

(table only in thousands)	2019			2018			2017
Service cost	$	—		$	—		$	415
Interest cost		1,303			1,190			1,314
Expected return on plan assets		(1,254	)		(1,511	)		(1,723	)
Net amortization and deferral		263			238			227
Net periodic benefit cost (income)	$	312		$	(83	)	$	233
Weighted-average assumptions used to determine net periodic benefit costs for the years ended December 31:
Discount rate		4.05	%		3.35	%		3.85	%
Expected return on assets		5.35	%		5.75	%		7.25	%

The basis of the long-term rate of return assumption reflects the current asset mix for the pension plan of approximately 30% to 40% debt securities and 60% to 70% equity securities with assumed average annual returns of approximately 4% to 6% for debt securities and 8% to 12% for equity securities. The investment portfolio for the pension plan will be adjusted periodically to maintain the current ratios of debt securities and equity securities. Additional consideration is given to the historical returns for the pension plan as well as future long range projections of investment returns for each asset category. The long-term rate of return also considers administrative expenses of the plan.

The net loss and prior service cost for the defined benefit pension plan that will be amortized from accumulated other comprehensive loss into net periodic benefit cost during 2020 are $0.3 million and zero, respectively.

Pension plan assets are invested in trusts comprised primarily of investments in various debt and equity funds. A fiduciary committee establishes the target asset mix and monitors asset performance. The expected rate of return on assets includes the determination of a real rate of return for equity and fixed income investment applied to the portfolio based on their relative weighting, increased by an underlying inflation rate. Our defined benefit pension plan asset allocation by asset category is as follows:

	Target Allocation			Percentage of Plan Assets
	2019			2019			2018
Asset Category:
Cash and cash equivalents		0	%		2	%		3	%
Equity securities		70	%		73	%		70	%
Debt securities		30	%		25	%		27	%
Total		100	%		100	%		100	%

Estimated pension plan cash obligations are $2.2 million, $2.2 million, $2.2 million, $2.2 million, and $2.2 million for 2020 through 2024, respectively, and a total of $10.4 million for the years 2025 through 2029.

Fair Value Measurements of Pension Plan Assets

Following is a description of the valuation methodologies used for pension assets measured at fair value:

•

Cash and cash equivalents: Cash and cash equivalents consist primarily of cash on deposit in money market funds. Cash and cash equivalents are stated at cost, which approximates fair value.

•

Equity securities: Equity securities consist of various managed funds that invest primarily in common stocks. These securities are valued at the net asset value of shares held by the plan at year end. The net asset value is calculated based on the underlying shares and investments held by the funds.

•

Debt securities: Debt securities consist of U.S. government and agency securities, corporate bonds and notes, and managed funds that invest in fixed income securities. U.S governmental and agency securities are valued at closing prices reported in the active market in which the individual securities are traded. Corporate bonds and notes are valued using market inputs including benchmark yields, reported trades, broker/dealer quotes, issuer spreads, two-sided markets, benchmark securities, bids, offers and reference data including market research publications. Inputs may be prioritized differently at certain times based on market conditions. Managed funds are valued at the net asset value of shares held by the plan at year end. The net asset value is calculated based on the underlying investments held by the fund.

The preceding methods described may produce a fair value calculation that may not be indicative of net realizable value or reflective of future fair values. Furthermore, although the Company believes its valuation methods are appropriate and consistent with other market participants, the use of different methodologies or assumptions to determine the fair value of certain financial instruments could result in a different fair value measurement at the reporting date.

The Company’s assessment of the significance of a particular input to the fair value measurement requires judgment and may affect the valuation of the fair value of assets and liabilities and their placement within the fair value hierarchy levels.

The levels assigned to the defined benefit plan assets as of December 31, 2019, are summarized in the tables below:

(table only in thousands)	Level 1		Level 2		Level 3		Total
Pension assets, at fair value:
Cash and cash equivalents	$	578	$	—	$	—	$	578
Equity securities		19,702		—		—		19,702
Debt securities		6,819		—		—		6,819
Total assets	$	27,099	$	—	$	—	$	27,099

The levels assigned to the defined benefit plan assets as of December 31, 2018, are summarized in the tables below:

(table only in thousands)	Level 1		Level 2		Level 3		Total
Pension assets, at fair value:
Cash and cash equivalents	$	685	$	—	$	—	$	685
Equity securities		16,994		—		—		16,994
Debt securities		6,518		—		—		6,518
Total assets	$	24,197	$	—	$	—	$	24,197

The Company contributes to a number of multiemployer defined benefit pension plans under the terms of collective-bargaining agreements that cover its union-represented employees. The risks of participating in these multiemployer plans are different from single-employer plans in the following aspects:

•

Assets contributed to the multiemployer plan by one employer may be used to provide benefits to employees of other participating employers.

•

If a participating employer stops contributing to the plan, the unfunded obligations of the plan may be borne by the remaining participating employers.

•

If the Company chooses to stop participating in some of its multiemployer plans, CECO may be required to pay those plans an amount based on the underfunded status of the plan, referred to as a withdrawal liability.

The Company’s participation in these plans for the year ended December 31, 2019, is outlined in the table below. The “EIN/Pension Plan Number” column provides the Employer Identification Number and the three-digit plan number, if applicable. Unless otherwise noted, the most recent Pension Protection Act zone status available in 2019 is for the plan’s year-end at December 31, 2018. The zone status is based on information that the Company received from the plan and is certified by the plan’s actuary. Among other factors, plans in the red zone are generally less than 65% funded, plans in the yellow zone are less than 80% funded, and plans in the green zone are at least 80% funded. The “FIP/RP Status Pending/Implemented” column indicates plans for which a financial improvement plan (FIP) or a rehabilitation plan (RP) is either pending or has been implemented. The last column lists the expiration date(s) of the collective-bargaining agreement(s) to which the plans are subject.

Pension Fund	EIN/Pension Plan Number	Pension Protection Act Zone Status	FIP/RP Status Pending/ Implemented	Surcharge Imposed	Expiration of Collective Bargaining Agreement
Sheet Metal Workers’ National Pension Fund	52-6112463/001	Yellow	FIP: Yes - Implemented RP: Yes - Implemented	No	various
Sheet Metal Workers Local 224 Pension Plan	31-6171353/001	Yellow	FIP: Yes - Implemented	No	May 31, 2022
Sheet Metal Workers Local No. 20, Indianapolis Area Pension fund	51-0168516/001	Green	Is not subject	No	May 31, 2020
Sheet Metal Workers Local No. 177 Pension Fund	62-6093256/001	Green	Is not subject	No	April 30, 2023

Kirk and Blum was listed in the Sheet Metal Workers Local No. 177 Pension Fund’s Form 5500 as providing more than five percent of total contributions for the year ended December 31, 2018. The Company was not listed in any of the other plans’ Forms 5500 as providing more than five percent of the total contributions for the plans and plan years. At the date the financial statements were issued, Forms 5500 were not available for the plan years ended December 31, 2019.

We have no current intention of withdrawing from any plan and, therefore, no liability has been provided in the accompanying consolidated financial statements.

Amounts charged to pension expense under the above plans including the multi-employer plans totaled $1.7 million, $1.4 million and $2.0 million in 2019, 2018 and 2017, respectively.

We have a 401(k) savings retirement plan for employees of certain of our subsidiaries. The plan covers substantially all employees who have 30 days of service, and who have attained 18 years of age. The plan allows us to make discretionary contributions and provides for employee salary deferrals of up to 100%. We made aggregate matching contributions and discretionary contributions of $1.7 million, $1.7 million, and $1.6 million during 2019, 2018 and 2017, respectively.

Senior Debt - Additional Information (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017	Jun. 30, 2024	Sep. 30, 2021	Sep. 30, 2020
Line Of Credit Facility [Line Items]
Repayment of outstanding debt	$ 3,000
Credit facility principal payments 2020	2,500
Credit facility principal payments 2021	3,100
Credit facility principal payments 2022	3,700
Credit facility principal payments 2023	4,500
Credit facility principal payments 2024	$ 53,500
Weighted average interest rate on outstanding borrowings	3.80%	5.27%
Fair value of interest rate swap	$ 0
Interest rate swap, fair value, asset		$ 500
Debt discount expensed	1,060	1,143	$ 1,033
Scenario Forecast [Member]
Line Of Credit Facility [Line Items]
Maximum consolidated leverage ratio				3.25%	3.50%	3.75%
Other Income (Expense), Net [Member]
Line Of Credit Facility [Line Items]
Change in fair value of interest rate swap recognized as income	$ 200
Cross Currency Interest Rate Contract [Member] \| Minimum [Member]
Line Of Credit Facility [Line Items]
Basis spread on variable rate	1.00%
Cross Currency Interest Rate Contract [Member] \| Maximum [Member]
Line Of Credit Facility [Line Items]
Basis spread on variable rate	2.00%
Federal Funds Rate [Member]
Line Of Credit Facility [Line Items]
Basis spread on variable rate	0.50%
One-Month LIBOR [Member]
Line Of Credit Facility [Line Items]
Basis spread on variable rate	1.00%
Base Rate [Member] \| Minimum [Member]
Line Of Credit Facility [Line Items]
Basis spread on variable rate	1.00%
Base Rate [Member] \| Maximum [Member]
Line Of Credit Facility [Line Items]
Basis spread on variable rate	2.00%
Amended and Restated Credit Agreement [Member]
Line Of Credit Facility [Line Items]
Debt instrument extended maturity date	Jun. 11, 2024
Customary closing fees	$ 1,100
Debt discount expensed	400
Credit Agreement [Member]
Line Of Credit Facility [Line Items]
Unused credit availability under credit facility	82,300	50,700
Revolving Credit Loan [Member]
Line Of Credit Facility [Line Items]
Repayments on revolving credit lines	7,600
Revolving Credit Loan	18,500
Revolving Credit Loan [Member] \| Amended and Restated Credit Agreement [Member]
Line Of Credit Facility [Line Items]
Aggregate principal amount outstanding under the credit facilities	140,000
Term Loan [Member] \| Amended and Restated Credit Agreement [Member]
Line Of Credit Facility [Line Items]
Increased credit facility commitment for either revolving credit facility or term loan facility	50,000
Letters of Credit [Member]
Line Of Credit Facility [Line Items]
Aggregate principal amount outstanding under the credit facilities	11,000	$ 29,300
Bank Guarantees [Member]
Line Of Credit Facility [Line Items]
Bank guarantee issuance under bilateral lines and collateral	50,000
Revolving Credit Loan	16,600
Netherlands Facility [Member] \| Euro-Denominated Bank Guarantee [Member]
Line Of Credit Facility [Line Items]
Revolving Credit Loan	$ 3,400

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

12 Months Ended

Dec. 31, 2019

Accounting Policies [Abstract]

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

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

	December 31,
	2019		2018
Cash and cash equivalents	$	35,602	$	43,676
Restricted cash		1,356	$	762
Total cash, cash equivalents and restricted cash	$	36,958	$	44,438

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

Earnings per share—The following table reconciles the numerators and denominators used to calculate basic and diluted earnings per share for 2019, 2018 and 2017.

	For the Year Ended December 31
	2019		2018			2017
(table only in thousands)
Numerator (for basic and diluted earnings per share)
Net income (loss)	$	17,707	$	(7,121	)	$	(3,029	)

Denominator
Basic weighted-average shares outstanding		34,988		34,714			34,445
Common stock equivalents arising from stock options and restricted stock awards		496		—			—
Diluted weighted-average shares outstanding		35,484		34,714			34,445

Nature of Business and Summary of Significant Accounting Policies

12 Months Ended

Dec. 31, 2019

Accounting Policies [Abstract]

Nature of Business and Summary of Significant Accounting Policies

1.	Nature of Business and Summary of Significant Accounting Policies

Nature of business— CECO Environmental Corp. and its consolidated subsidiaries (“CECO,” the “Company,” “we,” “us,” or “our”) is a global leader in industrial air quality and fluid handling serving the energy, industrial and other niche markets through an attractive asset-light business model. CECO provides innovative technology and application expertise that helps companies grow their businesses with safe, clean, and more efficient solutions to help protect our shared environment. CECO serves both established and emerging industries in regions around the world working to improve air quality, optimize the energy value chain, and provide customized engineered solutions in multiple applications that include oil and gas, power generation, water and wastewater, battery production, poly silicon fabrication, chemical and petrochemical processing, along with a wide range of other industries.

Principles of consolidation—Our consolidated financial statements include the Company and its controlled subsidiaries. All intercompany balances and transactions have been eliminated.

Unless indicated, all balances within tables are in thousands except per share amounts.

Use of estimates—The preparation of financial statements in conformity with accounting principles generally accepted in the United States of America (“GAAP”) requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates.

Cash equivalents—We consider all highly liquid investments with original maturities of three months or less to be cash equivalents. At December 31, 2019 and 2018, Restricted Cash is cash in support of letters of credit issued by various foreign subsidiaries of the Company. The Company occasionally enters into letters of credit with durations in excess of one year.

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

	December 31,
	2019		2018
Cash and cash equivalents	$	35,602	$	43,676
Restricted cash		1,356	$	762
Total cash, cash equivalents and restricted cash	$	36,958	$	44,438

Accounts Receivable—Receivables are generally uncollateralized customer obligations due under normal terms requiring payment generally within 30 days from the invoice date unless otherwise determined by specific contract terms, generally due to retainage provisions. The Company’s estimate of the allowance for doubtful accounts for trade receivables is primarily determined based upon the length of time that the receivables are past due. In addition, management estimates are used to determine probable losses based upon an analysis of prior collection experience, specific account risks and economic conditions. Accounts are deemed uncollectible based on past account experience and the current financial condition of the account.

Inventories—The Company’s inventory is valued at the lower of cost or net realizable value, using the first-in, first-out inventory costing method. Inventory quantities are regularly reviewed and provisions for excess or obsolete inventory are recorded based on the Company’s forecast of future demand and market conditions. Significant unanticipated changes to the Company’s forecasts could require a change in the provision for excess or obsolete inventory.

Assets Held for Sale—The Company classifies properties as held for sale when certain criteria are met. At such time, the properties, including significant assets that are expected to be transferred as part of a sale transaction, are presented separately on the Consolidated Balance Sheets at the lower of carrying value or estimated fair value less costs to sell and depreciation is no longer recognized. Assets classified as held for sale include one building and one tract of land.

Property, plant and equipment—Property, plant and equipment are carried at the cost of acquisition or construction and depreciated over the estimated useful lives of the assets. Depreciation and amortization are provided using the straight-line method in amounts sufficient to amortize the cost of the assets over their estimated useful lives (buildings and improvements—generally five to 40 years; machinery and equipment—generally two to 15 years). Upon sale or disposal of property, plant and equipment, the applicable amounts of asset cost and accumulated depreciation are removed from the accounts, and the net amount, less any proceeds from sale, is recorded in income.

Intangible assets— Indefinite life intangible assets are comprised of tradenames, while finite life intangible assets are comprised of technology, customer lists, noncompetition agreements and tradenames. Finite life intangible assets are amortized on a straight line or accelerated basis over their estimated useful lives of seven to 10 years for technology, five to 20 years for customer lists, five years for noncompetition agreements and 10 years for tradenames.

Long-lived assets—Property, plant and equipment and finite life intangible assets are reviewed whenever events or changes in circumstances occur that indicate possible impairment. If events or changes in circumstances occur that indicate possible impairment, our impairment review is based on an undiscounted cash flow analysis at the lowest level at which cash flows of the long-lived assets are largely independent of other groups of our assets and liabilities. This analysis requires management judgment with respect to changes in technology, the continued success of product lines, and future volume, revenue and expense growth rates. We conduct annual reviews for idle and underutilized equipment, and review business plans for possible impairment. Impairment occurs when the carrying value of the assets exceeds the future undiscounted cash flows expected to be earned by the use of the asset or asset group. When impairment is indicated, the estimated future cash flows are then discounted to determine the estimated fair value of the asset or asset group and an impairment charge is recorded for the difference between the carrying value and the estimated fair value.

Additionally, the Company evaluates the remaining useful life each reporting period to determine whether events and circumstances warrant a revision to the remaining period of depreciation or amortization. If the estimate of a long-lived asset’s remaining useful life is changed, the remaining carrying amount of the asset is amortized prospectively over that revised remaining useful life.

The Company completes an annual (or more often if circumstances require) impairment assessment of its indefinite life intangible assets. As a part of its annual assessment, typically, the Company first qualitatively assesses whether current events or changes in circumstances lead to a determination that it is more likely than not (defined as a likelihood of more than 50 percent) that the fair value of an asset is less than its carrying amount. If there is a qualitative determination that the fair value of a particular asset is more likely than not greater than its carrying value, we do not need to proceed to the quantitative estimated fair value test for that asset. If this qualitative assessment indicates a more likely than not potential that the asset may be impaired, the estimated fair value is determined by the relief from royalty method. If the estimated fair value of an asset is less than its carrying value, an impairment charge is recorded for the amount by which the carrying value of the asset exceeds its estimated fair value.

Goodwill—The Company completes an annual (or more often if circumstances require) impairment assessment on October 1 of its goodwill on a reporting unit level, at or below the operating segment level. As a part of its annual assessment, the Company first qualitatively assesses whether current events or changes in circumstances lead to a determination that it is more likely than not (defined as a likelihood of more than 50 percent) that the fair value of a reporting unit is less than its carrying amount. If there is a qualitative determination that the fair value of a particular reporting unit is more likely than not greater than its carrying value, the Company does not need to quantitatively test for goodwill impairment for that reporting unit. If this qualitative assessment indicates a more likely than not potential that the asset may be impaired, the estimated fair value is determined using a weighting of the income method and the market method. If the estimated fair value of a reporting unit is less than its carrying value, an impairment charge is recorded.

Deferred charges—Deferred charges include deferred financing costs, which are amortized to interest expense over the life of the related loan. On June 11, 2019, the Company entered into a Second Amended and Restated Credit Agreement (the “Credit Facility”). The Credit Facility amends the Company’s existing amended and restated agreement. In connection with the Credit Facility, the Company incurred $1.1 million in customary closing fees in 2019 that were capitalized and classified as a debt discount. Additionally, during 2019, $0.4 million of existing debt discount related to the 2017 long-term debt modification was expensed, and classified as interest expense, as a result of the Credit Facility (see Note 9 for further details on the modification). Amortization expense was $1.1 million, $1.1 million and $1.0 million for 2019, 2018 and 2017, respectively. As of December 31, 2019, and 2018, remaining capitalized deferred financing costs of $1.7 million are included as a discount to debt in the accompanying Consolidated Balance Sheets.

Revenue recognition

Energy Solutions and Industrial Solutions Segments—Within the Energy Solutions and Industrial Solutions segments, a significant portion of our revenue is derived from fixed-price contracts. We account for a contract after it has been approved by all parties to the arrangement, the rights of the parties are identified, payment terms are identified, the contract has commercial substance and collectability of consideration is probable.

For each contract, we assess the goods and services promised to a customer and identify a performance obligation for each distinct promised good or service. The typical life of our contracts is generally less than 12 months and each contract generally contains only one performance obligation, to provide goods or services to the customer. We determine the transaction price for each contract based on the consideration we expect to receive for the products or services being provided under the contract.

We recognize revenue as performance obligations are satisfied and the customer obtains control of the products and services. A significant amount of our revenue within the Energy Solutions and Industrial Solutions segments is recognized over a period of time as we perform under the contract because control of the work in process transfers continuously to the customer. For performance obligations to deliver products with continuous transfer of control to the customer, revenue is recognized based on the extent of progress towards completion of the performance obligation. Progress is measured based on the ratio of costs incurred to date to the total estimated costs to complete the performance obligation. For these contracts, the cost-to-cost measure best depicts the continuous transfer of goods or services to the customer.

For contracts where the duration is short, total contract revenue is insignificant, or control does not continuously transfer to the customer, revenues are recognized at the point in time control passes to the customer, which occurs generally upon shipment of product.

Progress payments are generally made over the duration of the contract. Shipping and handling activities after control of the products has transferred to the customer are considered fulfillment activities. Sales taxes are recorded on a net basis.

Fluid Handling Solutions Segments—Within the Fluid Handling Solutions segment, a significant portion of our revenue is primarily derived from sales of inventory product and is recognized at the point in time control passes to the customer, which occurs generally upon shipment of the product.

Payments vary by customer but are typically due within 30 days. Shipping and handling activities after control of the products has transferred to the customer are considered fulfillment activities. Sales taxes are recorded on a net basis.

Contract Assets and Contract Liabilities — Contract assets consist of costs and earnings in excess of billings, costs incurred for contracts recognized at a point in time, and retainage. Costs and earnings in excess of billings represent the estimated value of unbilled work for contracts with performance obligations recognized over time and are separately classified as current assets in the Consolidated Balance Sheets. Costs incurred for contracts recognized at a point in time are classified within inventories as work-in-process. Retainage represents a portion of the contract billings that have been billed, but for which the contract allows the customer to retain a portion of the billed amount until final settlement. Retainage is not considered to be a significant financing component because the intent is to protect the customer. Retainage is classified within accounts receivable and deferred charges and other assets depending on when it is due. Almost all of the Company’s contract assets are classified as current assets in the Consolidated Balance Sheets.

Billings in excess of costs and estimated earnings on uncompleted contracts are current liabilities, which relate to fixed-price contracts recognized over time, and represents payments in advance of performing the related contract work. Billings in excess of costs and estimated earnings on uncompleted contracts is not considered to be a significant financing component because it is generally used to meet working capital demands that can be higher in the early stages of a contract. Contract liabilities, classified in accounts payable and accrued expenses in the Consolidated Balance Sheets, include advance payments received from customers for which revenue has not been recognized for contracts where revenue is recognized at a point in time. Contract liabilities are reduced when the associated revenue from the contract is recognized, which is generally within one year.

The revenue streams within the Company are consistent with those disclosed for our reportable segments. See Note 17 to the Consolidated Financial Statements for additional information on product offerings and segments.

Provisions for estimated losses on uncompleted contracts are made in the period in which such losses are determined. Changes to job performance, job conditions, and estimated profitability may result in revisions to contract revenue and costs and are recognized in the period in which the revisions are made. There was no provision for estimated losses on uncompleted contracts at December 31, 2019 and 2018.

Cost of sales—Cost of sales amounts include materials, subcontract costs, direct labor and associated benefits, inbound freight charges, purchasing and receiving, inspection, warehousing, and depreciation.

Claims—Change orders arise when the scope of the original project is modified for any of a variety of reasons. The Company will negotiate the extent of the modifications, its expected costs and recovery with the customer. Costs related to change orders are added to the expected total cost of the project. In cases where contract revenues are assured beyond a reasonable doubt to be increased in excess of the expected costs of the change order, incremental profit also is recognized on the contract. Such assurance is generally only achieved when the customer approves in writing the scope and pricing of the change order. Change orders that are in dispute are effectively handled as claims.

Claims are amounts in excess of the agreed contract price that the Company seeks to collect from customers or others for customer-caused delays, errors in specifications and designs, contract terminations, change orders in dispute or unapproved as to both scope and price. Costs attributable to claims are treated as contract costs as incurred.

The Company recognizes certain significant claims for recovery of incurred costs when it is probable that the claim will result in additional contract revenue and when the amount of the claim can be reliably estimated. When the customer or other parties agree in writing to the amount of the claim to be recovered by the Company, the amount of the claim becomes contractual and is accounted for as an increase in the contract’s total estimated revenue and estimated cost. As actual costs are incurred and revenues are recognized over time, a corresponding percentage of the revised total estimated profit will therefore be recognized.

Should it become probable that the claim will not result in additional contract revenue, the Company removes the related contract revenues from its previous estimate of total revenues, which effectively reduces the estimated profit margin on the job and negatively impacts profit for the period.

Pre-contract costs—Pre-contract costs are not significant and are primarily internal costs. As most of the Company’s contracts are one year or less, the Company expenses all pre-contract costs as incurred regardless of whether or not the bids are successful. A majority of our business is obtained through a bidding process and this activity is on-going with multiple bids in process at any one time. These costs consist primarily of engineering, sales and project manager wages, fringes and general corporate overhead and it is deemed impractical to track activities related to any one specific contract.

Selling and administrative expenses—Selling and administrative expenses on the Consolidated Statements of Operations include sales and administrative wages and associated benefits, selling and office expenses, professional fees, bad debt expense and depreciation. Selling and administrative expenses are charged to expense as incurred.

Acquisition and integration expenses—Acquisition and integration expenses on the Consolidated Statements of Operations are related to acquisition activities, which include, legal, accounting, and other expenses.

Amortization and earnout expenses—Amortization and earnout expenses on the Consolidated Statements of Operations include amortization of intangible assets, and changes to earnout and contingent compensation amounts related to acquisitions.

Restructuring expenses—Restructuring expenses on the Consolidated Statements of Operations include expenses related to an ongoing restructuring program to reduce operating costs in the future. Within restructuring expenses are charges related to severance, facility exit, legal and property, plant and equipment impairment. The Company’s policy is to recognize restructuring expenses in accordance with the accounting rules related to exit or disposal activities.

Product Warranties—The Company’s warranty reserve is to cover the products sold. The warranty accrual is based on historical claims information. The warranty reserve is reviewed and adjusted as necessary on a quarterly basis and is presented within Note 8.

Research and Development—Although not technically defined as research and development, a significant amount of time, effort and expense is devoted to (a) custom engineering which qualifies products for specific customer applications, (b) developing proprietary process technology and (c) partnering with customers to develop new products.

Income Taxes—Income taxes are determined using the asset and liability method of accounting for income taxes in accordance with Financial Accounting Standards Board (“FASB”), Accounting Standards Codification (“ASC”) Topic 740, “Income Taxes”. Income tax expense includes federal, state and foreign income taxes.

Deferred income taxes are provided using the asset and liability method whereby deferred tax assets are recognized for deductible temporary differences and operating loss and tax credit carry-forwards and deferred tax liabilities are recognized for taxable temporary differences. Temporary differences are the differences between the reported amounts of assets and liabilities and their tax bases and are measured using enacted tax rates expected to apply to taxable income in the year in which those temporary differences are expected to be recovered or settled. Deferred tax assets and liabilities are adjusted for the effects of changes in tax laws and rates on the date of enactment. Tax credits and other incentives reduce income tax expense in the year the credits are claimed.

Management must assess the need to accrue or disclose uncertain tax positions for proposed potential adjustments from various federal, state and foreign tax authorities who regularly audit the Company in the normal course of business. In making these assessments, management must often analyze complex tax laws of multiple jurisdictions, including many foreign jurisdictions. The accounting guidance prescribes a recognition threshold and measurement attribute for the financial statement recognition and measurement of a tax position taken or expected to be taken in a tax return. The Company records the related interest expense and penalties, if any, as tax expense in the tax provision.

The company has made an accounting policy election to record the U.S. income tax effect of future global intangible low-taxed income (“GILTI”) inclusions in the period in which they arise, rather than establishing deferred taxes with respect to the expected future tax liabilities associated with future GILTI inclusion.

Certain of the Company’s undistributed earnings of its foreign subsidiaries are not permanently reinvested. A liability has been recorded for the deferred taxes on such undistributed foreign earnings. The amount is attributable primarily to the foreign withholding taxes that would become payable should the Company repatriate cash held in its foreign operations.

Earnings per share—The following table reconciles the numerators and denominators used to calculate basic and diluted earnings per share for 2019, 2018 and 2017.

	For the Year Ended December 31
	2019		2018			2017
(table only in thousands)
Numerator (for basic and diluted earnings per share)
Net income (loss)	$	17,707	$	(7,121	)	$	(3,029	)

Denominator
Basic weighted-average shares outstanding		34,988		34,714			34,445
Common stock equivalents arising from stock options and restricted stock awards		496		—			—
Diluted weighted-average shares outstanding		35,484		34,714			34,445

Options and unvested restricted stock units are included in the computation of diluted earnings per share using the treasury stock method. For 2019, 2018 and 2017, outstanding options and unvested restricted stock units of 0.4 million, 0.8 million and 0.7 million, respectively, were excluded from the computation of diluted earnings per share due to their having an anti-dilutive effect.

Once a restricted stock award vests, it is included in the computation of weighted average shares outstanding for purposes of basic and diluted earnings per share.

Foreign Currency Translation—The functional currencies of the Company’s foreign subsidiaries are their local currencies and their books and records are maintained in the local currency. The assets and liabilities of these foreign subsidiaries are translated into United States Dollars (“USD”) based on the end-of period exchange rates and the resultant translation adjustments are reported in Accumulated Other Comprehensive Loss in Shareholders’ equity on the Consolidated Balance Sheets.

Income and expenses are translated into USD at average exchange rates in effect during the period.

Transactions denominated in other than the local currency are remeasured into the local currency and the resulting exchange gains or losses are included in “Other income (expense), net” line of the Consolidated Statements of Operations. Transaction gains were $0.4 million, $0.7 million and $0.1 million in 2019, 2018 and 2017, respectively.

Recently adopted accounting pronouncements

On January 1, 2019, we adopted the new lease accounting guidance, ASC 842. The guidance 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. Under the guidance, leases are classified as either finance or operating, with classification affecting the pattern of expense recognition. We adopted the guidance using the modified retrospective method which was applied to leases that existed or were entered into on or after January 1, 2019. The Company elected to utilize the package of practical expedients that allows us to 1) not reassess whether any expired or existing contracts are or contain leases, 2) retain the existing classification of lease contracts as of the date of adoption, and 3) not reassess initial direct costs for any existing leases. We also elected to not separate lease and non-lease components, for all leases. The adoption of this standard had a material impact on our consolidated balance sheet due to the recognition of ROU assets and liabilities for our operating leases totaling $13.3 million, as well as an adjustment to beginning equity of $4.6 million, net of tax, related to a prior sale-leaseback transaction. The adoption of the standard did not have a material impact on our statement of operations or liquidity. See Note 12 to the Consolidated Financial Statements for additional details on the Company’s leases.

In August 2017, the FASB issued ASU 2017-12, “Derivatives and Hedging (Topic 815): Targeted Improvements to Accounting for Hedging Activities.” This guidance expands an entity’s ability to apply hedge accounting for nonfinancial and financial risk components and allows for a simplified approach for fair value hedging of interest rate risk. Additionally, this ASU eliminates the need to separately measure and report hedge ineffectiveness and generally requires the entire change in fair value of a hedging instrument to be presented in the same income statement line as the hedged item. The Company adopted this ASU on January 1, 2019 and applied the modified retrospective approach through a cumulative-effect adjustment from accumulated other comprehensive income to retained earnings as of the effective date. The impact of the adoption of this ASU was not material.

Recently issued accounting pronouncements not yet adopted

In August 2018, the FASB issued ASU 2018-14, “Compensation—Retirement Benefits—Defined Benefit Plans—General (Subtopic 715-20): Disclosure Framework—Changes to the Disclosure Requirements for Defined Benefit Plans,” that makes minor changes to the disclosure requirements for employers that sponsor defined benefit pension and/or other postretirement benefit plans. The new guidance eliminates requirements for certain disclosures that are no longer considered cost beneficial and requires new ones that the FASB considers pertinent. ASU 2018-14 is effective for us January 1, 2021. We are evaluating the impact of the adoption of ASU 2018-14 on our consolidated financial statements.

Accounts Receivable

12 Months Ended

Dec. 31, 2019

Receivables [Abstract]

Accounts Receivable

3.Accounts Receivable

Accounts receivable consisted of the following:

	December 31,
(table only in thousands)	2019			2018
Contract receivables	$	58,881		$	48,826
Trade receivables		12,135			7,296
Allowance for doubtful accounts		(2,582	)		(2,897	)
Total accounts receivable	$	68,434		$	53,225

Balances billed, but not paid by customers under retainage provisions in contracts that are recorded in deferred charges and other assets within the Consolidated Balance Sheets, amounted to approximately $0.9 million at December 31, 2019 and 2018. Retainage receivables on contracts in progress are generally collected within a year or two subsequent to contract completion.

Provision for doubtful accounts was $0.3 million, $1.4 million and $3.9 million during 2019, 2018 and 2017, respectively, while accounts charged to the allowance were $0.6 million, $0.8 million and $1.5 million during 2019, 2018 and 2017, respectively.

Senior Debt - Summary of Debt (Parenthetical) (Detail) - Term Loan [Member] $ in Millions	12 Months Ended
	Dec. 31, 2019 USD ($)
Debt Instrument [Line Items]
Frequency of periodic payment	quarterly
Term loans, year of maturity	Jun. 30, 2024
Debt Instrument, Redemption, Through June 2021 [Member]
Debt Instrument [Line Items]
Outstanding borrowings, quarterly principal installments payable amount	$ 0.6
Debt Instrument, Redemption, Through June 2023 [Member]
Debt Instrument [Line Items]
Outstanding borrowings, quarterly principal installments payable amount	0.9
Debt Instrument, Redemption, Thereafter [Member]
Debt Instrument [Line Items]
Outstanding borrowings, quarterly principal installments payable amount	$ 1.3

Quarterly Data (Unaudited) - Schedule of Quarterly Financial Information (Detail) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Quarterly Financial Information Disclosure [Abstract]
Net sales	$ 89,413	$ 85,266	$ 81,179	$ 86,011	$ 93,854	$ 88,256	$ 81,089	$ 74,139	$ 341,869	$ 337,339	$ 345,051
Gross profit	30,044	28,777	26,846	28,432	29,777	28,674	27,525	25,561	$ 114,099	$ 111,537	$ 113,194
Net income (loss)	$ 8,397	$ 1,931	$ 5,515	$ 1,864	$ 931	$ (12,915)	$ (901)	$ 5,763
Basic earnings (loss) per share	$ 0.24	$ 0.06	$ 0.16	$ 0.05	$ 0.03	$ (0.37)	$ (0.03)	$ 0.17	$ 0.51	$ (0.21)	$ (0.09)
Diluted earnings (loss) per share	$ 0.24	$ 0.05	$ 0.15	$ 0.05	$ 0.03	$ (0.37)	$ (0.03)	$ 0.17	$ 0.50	$ (0.21)	$ (0.09)

- Definition

The amount of net income (loss) for the period per each share of common stock or unit outstanding during the reporting period.

+ References

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+ Details

- Definition

The amount of net income (loss) for the period available to each share of common stock or common unit outstanding during the reporting period and to each share or unit that would have been outstanding assuming the issuance of common shares or units for all dilutive potential common shares or units outstanding during the reporting period.

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+ Details

- Definition

The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.

+ References + Details

Financial Instruments - Additional Information (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Fair Value Of Financial Instruments [Line Items]
Fair value of note payable		$ 1,700
Cash and cash equivalents	$ 35,602	43,676
Cash held outside United States, principally in Netherlands, United Kingdom, China, and Canada	27,400	23,300
Credit Facility [Member]
Fair Value Of Financial Instruments [Line Items]
Fair value of debt issued	$ 67,300	$ 76,100

Accounts Receivable (Tables)

12 Months Ended

Dec. 31, 2019

Receivables [Abstract]

Summary of Accounts Receivable

Accounts receivable consisted of the following:

	December 31,
(table only in thousands)	2019			2018
Contract receivables	$	58,881		$	48,826
Trade receivables		12,135			7,296
Allowance for doubtful accounts		(2,582	)		(2,897	)
Total accounts receivable	$	68,434		$	53,225

Accounts Payable and Accrued Expenses - Summary of Accounts Payable and Accrued Expenses (Detail) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Payables And Accruals [Abstract]
Trade accounts payable, including amounts due to subcontractors	$ 48,762	$ 51,984
Compensation and related benefits	5,712	7,578
Accrued warranty	4,664	3,384
Contract liability	5,666	6,541
Short-term operating lease liability	2,610
Other	10,905	10,742
Total accounts payable and accrued expenses	$ 78,319	$ 80,229

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

12 Months Ended

Dec. 31, 2019

Accounting Policies [Abstract]

Nature of business

Principles of consolidation

Principles of consolidation—Our consolidated financial statements include the Company and its controlled subsidiaries. All intercompany balances and transactions have been eliminated.

Unless indicated, all balances within tables are in thousands except per share amounts.

Use of estimates

Cash equivalents

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

	December 31,
	2019		2018
Cash and cash equivalents	$	35,602	$	43,676
Restricted cash		1,356	$	762
Total cash, cash equivalents and restricted cash	$	36,958	$	44,438

Accounts Receivable

Inventories

Assets Held for Sale

Property, plant and equipment

Selling and administrative expenses

Acquisition and integration expenses

Amortization and earnout expenses

Restructuring expenses

Product Warranties

Research and Development

Income taxes

Earnings per share

Earnings per share—The following table reconciles the numerators and denominators used to calculate basic and diluted earnings per share for 2019, 2018 and 2017.

	For the Year Ended December 31
	2019		2018			2017
(table only in thousands)
Numerator (for basic and diluted earnings per share)
Net income (loss)	$	17,707	$	(7,121	)	$	(3,029	)

Denominator
Basic weighted-average shares outstanding		34,988		34,714			34,445
Common stock equivalents arising from stock options and restricted stock awards		496		—			—
Diluted weighted-average shares outstanding		35,484		34,714			34,445

Once a restricted stock award vests, it is included in the computation of weighted average shares outstanding for purposes of basic and diluted earnings per share.

Foreign Currency Translation

Income and expenses are translated into USD at average exchange rates in effect during the period.

New Financial Accounting Pronouncements

Recently adopted accounting pronouncements

Recently issued accounting pronouncements not yet adopted

Consolidated Statements of Shareholders' Equity - USD ($) shares in Thousands, $ in Thousands	Total	Divestiture [Member]	Common Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings (Loss) [Member]	Accumulated Other Comprehensive Income (Loss) [Member]	Accumulated Other Comprehensive Income (Loss) [Member] Divestiture [Member]	Treasury Stock [Member]
Beginning Balance at Dec. 31, 2016	$ 190,082		$ 343	$ 244,878	$ (41,741)	$ (13,042)		$ (356)
Beginning Balance, Shares at Dec. 31, 2016			34,300					(138)
Net income (loss)	(3,029)				(3,029)
Cumulative effect adjustment \| ASU 2016-09 [Member]	66			177	(111)
Common stock dividends	(7,792)				(7,792)
Exercise of stock options and dividend reinvestment issuances	$ 1,295		$ 3	1,292
Exercise of stock options and dividend reinvestment issuances, Shares	292		291
Restricted stock units issued	$ (135)		$ (1)	(136)
Restricted stock units issued, Shares			92
Share based compensation earned	1,959			1,959
Share based compensation earned, Shares			25
Adjustment for minimum pension liability, net of tax	(78)					(78)
Interest rate swap	180					180
Translation income (loss)	4,021					4,021
Ending Balance at Dec. 31, 2017	186,569		$ 347	248,170	(52,673)	(8,919)		$ (356)
Ending Balance, Shares at Dec. 31, 2017			34,708					(138)
Translation (loss) gain, beginning balance at Dec. 31, 2016	(8,271)
Translation (loss) gain, ending balance at Dec. 31, 2017	(4,250)
Interest rate swap adjustment beginning balance at Dec. 31, 2016	312
Interest rate swap adjustment ending balance at Dec. 31, 2017	492
Minimum pension liability adjustment beginning balance at Dec. 31, 2016	(5,083)
Minimum pension liability adjustment, ending balance at Dec. 31, 2017	(5,161)
Accumulated other comprehensive loss, beginning balance at Dec. 31, 2016	(13,042)
Accumulated other comprehensive loss, activity	4,123
Accumulated other comprehensive loss, ending balance at Dec. 31, 2017	(8,919)
Net income (loss)	(7,121)				(7,121)
Cumulative effect adjustment \| ASU 2018-02 [Member]	(30)				1,037	(1,067)
Cumulative effect adjustment \| ASU 2014-09 [Member]	(622)				(622)
Cumulative translation adjustment for divestiture		$ 375					$ 375
Exercise of stock options and dividend reinvestment issuances	$ 89			89
Exercise of stock options and dividend reinvestment issuances, Shares	16		16
Restricted stock units issued	$ (253)		$ 2	(207)	48
Restricted stock units issued, Shares			192
Share based compensation earned	3,357			3,357
Share based compensation earned, Shares			38
Adjustment for minimum pension liability, net of tax	(22)					(22)
Interest rate swap	76					76
Translation income (loss)	(3,858)					(3,858)
Ending Balance at Dec. 31, 2018	178,560		$ 349	251,409	(59,427)	(13,415)		$ (356)
Ending Balance, Shares at Dec. 31, 2018			34,954					(138)
Translation (loss) gain, ending balance at Dec. 31, 2018	(7,733)
Interest rate swap adjustment ending balance at Dec. 31, 2018	563
Cumulative effect adjustment for interest rate swap \| ASU 2018-02 [Member]	(5)
Minimum pension liability adjustment, ending balance at Dec. 31, 2018	(6,245)
Minimum pension liability adjustment, cumulative translation adjustment \| ASU 2018-02 [Member]	(1,062)
Accumulated other comprehensive loss, activity	(3,804)
Accumulated other comprehensive loss, ending balance at Dec. 31, 2018	(13,415)
Accumulated other comprehensive loss, cumulative translation adjustment		$ 375
Accumulated other comprehensive loss, cumulative translation adjustment \| ASU 2018-02 [Member]	(1,067)
Net income (loss)	17,707				17,707
Cumulative effect adjustment \| Accounting Standards Update 2017-12					(11)	11
Cumulative effect adjustment \| Accounting Standards Update 2016-02	$ (4,590)				(4,590)
Exercise of stock options and dividend reinvestment issuances, Shares	66		31
Restricted stock units issued	$ (447)		$ 3	(427)	23
Restricted stock units issued, Shares			255
Share based compensation earned	2,888		$ 1	2,887
Share based compensation earned, Shares			35
Adjustment for minimum pension liability, net of tax	(184)					(184)
Interest rate swap	(574)					(574)
Translation income (loss)	(343)					(343)
Ending Balance at Dec. 31, 2019	193,017		$ 353	$ 253,869	$ (46,344)	$ (14,505)		$ (356)
Ending Balance, Shares at Dec. 31, 2019			35,275					(138)
Translation (loss) gain, ending balance at Dec. 31, 2019	(8,076)
Cumulative effect adjustment for interest rate swap \| Accounting Standards Update 2017-12	11
Minimum pension liability adjustment, ending balance at Dec. 31, 2019	(6,429)
Accumulated other comprehensive loss, activity	(1,101)
Accumulated other comprehensive loss, ending balance at Dec. 31, 2019	(14,505)
Accumulated other comprehensive loss, cumulative translation adjustment \| Accounting Standards Update 2017-12	$ 11

Business Segment Information (Tables)

12 Months Ended

Dec. 31, 2019

Segment Reporting [Abstract]

Net Sales and Income from Operation by Business Segment

	2019		2018		2017
Net Sales (less intra-, inter-segment sales)
(table only in thousands)
Energy Solutions segment	$	210,319	$	211,185	$	188,955
Industrial Solutions segment		91,347		80,699	$	93,960
Fluid Handling Solutions segment		40,203		45,455	$	63,037
Corporate and Other (1)		—		—		(901	)
Net sales	$	341,869	$	337,339	$	345,051

(1)	Includes adjustment for revenue on intercompany jobs.

	2019			2018			2017
Income (loss) from Operations
(table only in thousands)
Energy Solutions segment	$	33,886		$	28,797		$	14,565
Industrial Solutions segment		5,679			6,308			8,800
Fluid Handling Solutions segment		5,558			7,730			14,059
Corporate and Other (2)		(27,133	)		(32,833	)		(26,649	)
Eliminations		—			—			(2,751	)
Income from operations	$	17,990		$	10,002		$	8,024

(2)Includes corporate compensation, professional services, information technology, acquisition and integration expenses, and other general, administrative corporate expenses and loss on divestitures

Property and Equipment Additions, Depreciation and Amortization and Identifiable Assets

	2019		2018		2017
Property and Equipment Additions
(table only in thousands)
Energy Solutions segment	$	434	$	205	$	444
Industrial Solutions segment		402		756		160
Fluid Handling Solutions segment		3,239		1,226		382
Corporate and Other		1,580		903		42
Property and equipment additions	$	5,655	$	3,090	$	1,028

	2019		2018		2017
Depreciation and Amortization
(table only in thousands)
Energy Solutions segment	$	6,084	$	8,112	$	9,675
Industrial Solutions segment		1,320		1,067		1,488
Fluid Handling Solutions segment		2,795		3,517		4,754
Corporate and Other		410		576		171
Depreciation and amortization	$	10,609	$	13,272	$	16,088

	December 31,
	2019		2018
Identifiable Assets
(table only in thousands)
Energy Solutions segment	$	254,752	$	245,842
Industrial Solutions segment		64,725		54,179
Fluid Handling Solutions segment		71,572		73,910
Corporate and Other (3)		17,588		18,651
Identifiable assets	$	408,637	$	392,582

(3)	Corporate assets primarily consist of cash and income tax related assets.

Goodwill

	December 31,
	2019		2018
Goodwill
(table only in thousands)
Energy Solutions segment	$	97,007	$	97,143
Industrial Solutions segment		23,436		23,436
Fluid Handling Solutions segment		31,577		31,577
Goodwill	$	152,020	$	152,156

Intra-Segment and Inter-Segment Revenues

The Company has divisions that sell to each other within segments (intra-segment sales) and between segments (inter-segment sales) as indicated in the following tables:

	Year Ended December 31, 2019
						Less Inter-Segment Sales
	Total Sales		Intra - Segment Sales			Industrial			Energy			Fluid			Corp and Other		Net Sales to Outside Customers
Net Sales
(table only in thousands)
Energy Solutions segment	$	217,359	$	(6,650	)	$	(390	)	$	—		$	—		$	—	$	210,319
Industrial Solutions segment		101,369		(8,278	)		—			(1,677	)		(67	)		—		91,347
Fluid Handling Solutions segment		41,717		(1,300	)		(214	)		—			—			—		40,203
Corporate and Other		—		—			—			—			—			—		—
Net Sales	$	360,445	$	(16,228	)	$	(604	)	$	(1,677	)	$	(67	)	$	—	$	341,869

	Year Ended December 31, 2018
						Less Inter-Segment Sales
	Total Sales		Intra - Segment Sales			Industrial			Energy			Fluid			Corp and Other		Net Sales to Outside Customers
Net Sales
(table only in thousands)
Energy Solutions segment	$	220,334	$	(7,912	)	$	(1,232	)	$	—		$	(5	)	$	—	$	211,185
Industrial Solutions segment		84,424		(3,084	)		—			(600	)		(41	)		—		80,699
Fluid Handling Solutions segment		47,561		(1,483	)		(616	)		(7	)		—			—		45,455
Corporate and Other		—		—			—			—			—			—		—
Net Sales	$	352,319	$	(12,479	)	$	(1,848	)	$	(607	)	$	(46	)	$	—	$	337,339

	Year Ended December 31, 2017
						Less Inter-Segment Sales
	Total Sales		Intra - Segment Sales			Industrial			Energy			Fluid			Corp and Other			Net Sales to Outside Customers
Net Sales
(table only in thousands)
Energy Solutions segment	$	197,897	$	(8,833	)	$	(109	)	$	—		$	—		$	—		$	188,955
Industrial Solutions segment		98,037		(3,235	)		—			(787	)		(55	)		—			93,960
Fluid Handling Solutions segment		67,530		(3,169	)		(492	)		(832	)		—			—			63,037
Corporate and Other (4)		—		—			—			—			—			(901	)		(901	)
Net Sales	$	363,464	$	(15,237	)	$	(601	)	$	(1,619	)	$	(55	)	$	(901	)	$	345,051

(4) Includes adjustment for revenue on intercompany jobs.

Property, Plant and Equipment (Tables)

12 Months Ended

Dec. 31, 2019

Property Plant And Equipment [Abstract]

Summary of Property, Plant and Equipment

	December 31,
(table only in thousands)	2019			2018
Land	$	147		$	1,623
Building and improvements		7,400			18,185
Machinery and equipment		26,993			25,257
Property, plant and equipment, gross		34,540			45,065
Less accumulated depreciation		(19,266	)		(22,865	)
Property, plant and equipment, net	$	15,274		$	22,200

Related Party Transactions - Additional Information (Detail) - Consulting Services [Member] - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Related Party One [Member]
Related Party Transaction [Line Items]
Rent and other expenses paid	$ 0.2	$ 0.2	$ 0.3
Related Party Two [Member]
Related Party Transaction [Line Items]
Rent and other expenses paid	$ 0.1	$ 0.1	$ 0.1

Nature of Business and Summary of Significant Accounting Policies - Additional Information (Detail) shares in Millions	12 Months Ended
	Dec. 31, 2019 USD ($) Obligation shares	Dec. 31, 2018 USD ($) shares	Dec. 31, 2017 USD ($) shares	Jan. 01, 2019 USD ($)
Nature Of Business And Summary Of Significant Accounting Policies [Line Items]
Cash equivalents and restricted cash, original maturities of highly liquid investments	3 months
Accounts receivables payment period from invoice date	30 days
Debt discount expensed	$ 1,060,000	$ 1,143,000	$ 1,033,000
Provision for Estimated losses on uncompleted contracts	$ 0	$ 0
Anti-dilutive options and unvested restricted stock units outstanding \| shares	0.4	0.8	0.7
Foreign currency transaction gain (loss)	$ 400,000	$ 700,000	$ 100,000
Right-of-use assets from operating leases	13,607,000			$ 13,300,000
Operating lease liability	$ 13,726,000			13,300,000
Prior sales lease back transaction net of tax				$ 4,600,000
ASU 2014-09 [Member] \| Energy Solutions And Industrial Solutions Segments
Nature Of Business And Summary Of Significant Accounting Policies [Line Items]
Revenue performance obligation, description of timing	The typical life of our contracts is generally less than 12 months and each contract generally contains only one performance obligation, to provide goods or services to the customer.
Number of performance obligation \| Obligation	1
Interest Expense
Nature Of Business And Summary Of Significant Accounting Policies [Line Items]
Amortization of deferred finance cost	$ 1,100,000	1,100,000	$ 1,000,000
Discount to Debt [Member]
Nature Of Business And Summary Of Significant Accounting Policies [Line Items]
Capitalized deferred financing costs	1,700,000	$ 1,700,000
Amended and Restated Credit Agreement [Member]
Nature Of Business And Summary Of Significant Accounting Policies [Line Items]
Customary closing fees	1,100,000
Debt discount expensed	$ 400,000
Tradename [Member]
Nature Of Business And Summary Of Significant Accounting Policies [Line Items]
Intangible assets, Useful Life	10 years
Non-compete Agreements [Member]
Nature Of Business And Summary Of Significant Accounting Policies [Line Items]
Intangible assets, Useful Life	5 years
Minimum [Member] \| Technology [Member]
Nature Of Business And Summary Of Significant Accounting Policies [Line Items]
Intangible assets, Useful Life	7 years
Minimum [Member] \| Customer Lists [Member]
Nature Of Business And Summary Of Significant Accounting Policies [Line Items]
Intangible assets, Useful Life	5 years
Maximum [Member] \| ASU 2014-09 [Member] \| Energy Solutions And Industrial Solutions Segments
Nature Of Business And Summary Of Significant Accounting Policies [Line Items]
Contracts life	12 months
Maximum [Member] \| Technology [Member]
Nature Of Business And Summary Of Significant Accounting Policies [Line Items]
Intangible assets, Useful Life	10 years
Maximum [Member] \| Customer Lists [Member]
Nature Of Business And Summary Of Significant Accounting Policies [Line Items]
Intangible assets, Useful Life	20 years
Building and Improvements [Member] \| Minimum [Member]
Nature Of Business And Summary Of Significant Accounting Policies [Line Items]
Property, Plant and Equipment, Useful Life	5 years
Building and Improvements [Member] \| Maximum [Member]
Nature Of Business And Summary Of Significant Accounting Policies [Line Items]
Property, Plant and Equipment, Useful Life	40 years
Machinery and Equipment [Member] \| Minimum [Member]
Nature Of Business And Summary Of Significant Accounting Policies [Line Items]
Property, Plant and Equipment, Useful Life	2 years
Machinery and Equipment [Member] \| Maximum [Member]
Nature Of Business And Summary Of Significant Accounting Policies [Line Items]
Property, Plant and Equipment, Useful Life	15 years

Income Taxes - Schedule of Income (Loss) Before Income Taxes (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments [Abstract]
Domestic	$ 11,565	$ 6,230	$ 3,891
Foreign	1,779	(3,733)	(2,482)
Income before income taxes	$ 13,344	$ 2,497	$ 1,409

Shareholders' Equity - Summary of Restricted Stock Awards (Detail) - Restricted Stock [Member] - 2007 Plan [Member] - $ / shares shares in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Schedule Of Summary Of Restricted Stock Unit Activity [Line Items]
Beginning balance , Nonvested shares	1,251	554	509
Granted , Nonvested shares	464	963	405
Vested , Nonvested shares	(310)	(217)	(92)
Forfeited , Nonvested shares	(84)	(49)	(268)
Ending balance , Nonvested shares	1,321	1,251	554
Beginning balance ,Weighted average grant date fair value	$ 6.30	$ 9.75	$ 9.64
Granted ,Weighted average grant date fair value	7.50	5.21	9.88
Vested , Weighted average grant date fair value	7.24	9.50	9.78
Forfeited , Weighted average grant date fair value	6.36	9.80	9.70
Ending balance , Weighted average grant date fair value	$ 6.80	$ 6.30	$ 9.75

Shareholders' Equity (Tables)

12 Months Ended

Dec. 31, 2019

Equity [Abstract]

Schedule of Dividend Declared

During 2017, our Board declared the following quarterly cash dividends on our common stock:

Dividend Per Share	Record Date	Payment Date
$0.075	August 7, 2017	September 29, 2017
$0.075	May 10, 2017	June 30, 2017
$0.075	March 6, 2017	March 31, 2017

Summary of Stock Option

Information related to all stock options under the 2017 Plan and 2007 Plan for 2019, 2018 and 2017 is shown in the tables below:

(shares in thousands)	Shares			Weighted Average Exercise Price		Weighted Average Remaining Contractual Term	Aggregate Intrinsic Value ($000)
Outstanding at December 31, 2018		507		$	10.43	5.2 years
Forfeitures		(31	)		6.84
Exercised		(66	)		4.10
Outstanding at December 31, 2019		410			11.45	4.7 years	$	32
Exercisable at December 31, 2019		355			12.08	4.6 years	$	29

(shares in thousands)	Shares			Weighted Average Exercise Price		Weighted Average Remaining Contractual Term	Aggregate Intrinsic Value ($000)
Outstanding at December 31, 2017		655		$	10.53	6.0 years
Forfeitures		(132	)		11.53
Exercised		(16	)		5.55
Outstanding at December 31, 2018		507			10.43	5.2 years	$	186
Exercisable at December 31, 2018		402			10.52	4.6 years	$	186

(shares in thousands)	Shares			Weighted Average Exercise Price		Weighted Average Remaining Contractual Term	Aggregate Intrinsic Value ($000)
Outstanding at December 31, 2016		1,519		$	10.25	6.1 years
Granted		128			9.24
Forfeitures		(700	)		12.44
Exercised		(292	)		3.92
Outstanding at December 31, 2017		655			10.53	6.0 years	$	78
Exercisable at December 31, 2017		463			10.49	5.2 years	$	78

Summary of Restricted Stock Awards

(shares in thousands)	Shares			Weighted Average Grant Date Fair Value
Nonvested at December 31, 2016		509		$	9.64
Granted		405			9.88
Vested		(92	)		9.78
Forfeited		(268	)		9.70
Nonvested at December 31, 2017		554			9.75
Granted		963			5.21
Vested		(217	)		9.50
Forfeited		(49	)		9.80
Nonvested at December 31, 2018		1,251			6.30
Granted		464			7.50
Vested		(310	)		7.24
Forfeited		(84	)		6.36
Nonvested at December 31, 2019		1,321			6.80

Inventories - Additional Information (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Inventory Disclosure [Abstract]
Amounts credited to the allowance for obsolete inventory	$ 0.3	$ 0.5	$ 0.2
Items charged to the allowance for inventory write-offs	$ 0.1	$ 0.3	$ 0.6

Shareholders' Equity - Schedule of Dividend Declared (Detail)	12 Months Ended
	Dec. 31, 2019 $ / shares
Record Date One [Member]
Dividends Declared [Line Items]
Dividend Per Share	$ 0.075
Record Date	Aug. 07, 2017
Payment Date	Sep. 29, 2017
Record Date Two [Member]
Dividends Declared [Line Items]
Dividend Per Share	$ 0.075
Record Date	May 10, 2017
Payment Date	Jun. 30, 2017
Record Date Three [Member]
Dividends Declared [Line Items]
Dividend Per Share	$ 0.075
Record Date	Mar. 06, 2017
Payment Date	Mar. 31, 2017

Financial Instruments

12 Months Ended

Dec. 31, 2019

Investments All Other Investments [Abstract]

Financial Instruments

2.	Financial Instruments

Our financial instruments consist primarily of cash and cash equivalents, receivables and certain other assets, foreign debt, and accounts payable, which approximate fair value at December 31, 2019 and 2018, due to their short-term nature or variable, market-driven interest rates.

The fair value of the debt issued under our Credit Agreement was $67.3 million and $76.1 million at December 31, 2019 and 2018, respectively. The fair value of the note payable was $1.7 million at December 31, 2018. The fair value was determined considering market conditions, our credit worthiness and the current terms of our debt.

At December 31, 2019 and 2018, the Company had cash and cash equivalents of $35.6 million and $43.7 million, respectively, of which $27.4 million and $23.3 million, respectively, was held outside of the United States, principally in the Netherlands, United Kingdom, China, and Canada.

Concentrations of credit risk:

Financial instruments that potentially subject us to credit risk consist principally of cash and cash equivalents, and accounts receivable. We maintain cash and cash equivalents with various major financial institutions. We perform periodic evaluations of the financial institutions in which our cash is invested. Concentrations of credit risk with respect to trade and contract receivables are limited due to the large number of customers and various geographic areas. Additionally, we perform ongoing credit evaluations of our customers’ financial condition.

Pension and Employee Benefit Plans (Tables)

12 Months Ended

Dec. 31, 2019

Compensation And Retirement Disclosure [Abstract]

Schedule of Changes in Projected Benefit Obligations


(table only in thousands)	2019			2018			2017
Change in projected benefit obligation:
Projected benefit obligation at beginning of year	$	32,998		$	36,327		$	35,012
Service cost		—			—			415
Interest cost		1,303			1,190			1,314
Actuarial loss (gain)		3,704			(2,629	)		1,787
Administrative expenses		—			—			(402	)
Benefits paid		(2,020	)		(1,890	)		(1,799	)
Projected benefit obligation at end of year		35,985			32,998			36,327
Change in plan assets:
Fair value of plan assets at beginning of year		24,197			26,836			24,063
Actual return (loss) on plan assets		4,431			(1,388	)		3,152
Employer contribution		491			639			1,822
Administrative expenses		—			—			(402	)
Benefits paid		(2,020	)		(1,890	)		(1,799	)
Fair value of plan assets at end of year		27,099			24,197			26,836
Unfunded status	$	(8,886	)	$	(8,801	)	$	(9,491	)
Defined benefit liability included in other liabilities	$	(8,886	)	$	(8,801	)	$	(9,491	)
Deferred tax benefit associated with accumulated other comprehensive loss		2,183			2,116			3,153
Accumulated other comprehensive loss, net of tax		6,420			6,224			5,154
Other comprehensive income (loss):
Net loss	$	527		$	271		$	358
Amortization of net actuarial gain		(263	)		(238	)		(227	)
Total recognized in other comprehensive income (loss)	$	264		$	33		$	131
Amount recognized in accumulated other comprehensive income (loss) - Prior service cost	$	8,603		$	8,340		$	8,307
Weighted-average assumptions used to determine benefit obligations for the year ended December 31:
Discount rate		2.95	%		4.05	%		3.35	%

Weighted-average Assumptions Used to Determine Net Periodic Benefit Cost

The details of net periodic benefit cost for pension benefits included in the accompanying Consolidated Statements of Operations for the years ended December 31, 2019, 2018 and 2017 are as follows:

(table only in thousands)	2019			2018			2017
Service cost	$	—		$	—		$	415
Interest cost		1,303			1,190			1,314
Expected return on plan assets		(1,254	)		(1,511	)		(1,723	)
Net amortization and deferral		263			238			227
Net periodic benefit cost (income)	$	312		$	(83	)	$	233
Weighted-average assumptions used to determine net periodic benefit costs for the years ended December 31:
Discount rate		4.05	%		3.35	%		3.85	%
Expected return on assets		5.35	%		5.75	%		7.25	%

Details of Defined Benefit Pension Plan Asset Allocation by Asset Category

Our defined benefit pension plan asset allocation by asset category is as follows:

	Target Allocation			Percentage of Plan Assets
	2019			2019			2018
Asset Category:
Cash and cash equivalents		0	%		2	%		3	%
Equity securities		70	%		73	%		70	%
Debt securities		30	%		25	%		27	%
Total		100	%		100	%		100	%

Disclosure of Fair Value Measurements of Pension Plan Assets

The levels assigned to the defined benefit plan assets as of December 31, 2019, are summarized in the tables below:

(table only in thousands)	Level 1		Level 2		Level 3		Total
Pension assets, at fair value:
Cash and cash equivalents	$	578	$	—	$	—	$	578
Equity securities		19,702		—		—		19,702
Debt securities		6,819		—		—		6,819
Total assets	$	27,099	$	—	$	—	$	27,099

The levels assigned to the defined benefit plan assets as of December 31, 2018, are summarized in the tables below:

(table only in thousands)	Level 1		Level 2		Level 3		Total
Pension assets, at fair value:
Cash and cash equivalents	$	685	$	—	$	—	$	685
Equity securities		16,994		—		—		16,994
Debt securities		6,518		—		—		6,518
Total assets	$	24,197	$	—	$	—	$	24,197

Summary of Pension Fund General Information

Pension Fund	EIN/Pension Plan Number	Pension Protection Act Zone Status	FIP/RP Status Pending/ Implemented	Surcharge Imposed	Expiration of Collective Bargaining Agreement
Sheet Metal Workers’ National Pension Fund	52-6112463/001	Yellow	FIP: Yes - Implemented RP: Yes - Implemented	No	various
Sheet Metal Workers Local 224 Pension Plan	31-6171353/001	Yellow	FIP: Yes - Implemented	No	May 31, 2022
Sheet Metal Workers Local No. 20, Indianapolis Area Pension fund	51-0168516/001	Green	Is not subject	No	May 31, 2020
Sheet Metal Workers Local No. 177 Pension Fund	62-6093256/001	Green	Is not subject	No	April 30, 2023

Pension and Employee Benefit Plans - Additional Information (Detail) - USD ($)	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Defined Benefit And Contribution Plan Disclosure [Line Items]
Current Assets Mix percentage	100.00%	100.00%
Assumed average annual returns	5.35%	5.75%	7.25%
Listing under plans Forms 5500 as providing more than 5% contribution	false
Liability has been provided in the accompanying consolidated financial statements	$ 0
Amounts charged to pension expense	1,700,000	$ 1,400,000	$ 2,000,000
Aggregate matching contributions and discretionary contributions Amount	$ 1,700,000	$ 1,700,000	$ 1,600,000
Employee Deferral Category One [Member]
Defined Benefit And Contribution Plan Disclosure [Line Items]
Profit sharing and 401(k) savings retirement plan for non-union employees Description	The plan covers substantially all employees who have 30 days of service, and who have attained 18 years of age.
Percentage of Employee salary deferral provision	100.00%
Yellow Zone [Member]
Defined Benefit And Contribution Plan Disclosure [Line Items]
Plans Funded Status Description	Between 65 and less than 80 percent
Red Zone [Member]
Defined Benefit And Contribution Plan Disclosure [Line Items]
Plans Funded Status Description	Less than 65 percent
Green Zone [Member]
Defined Benefit And Contribution Plan Disclosure [Line Items]
Plans Funded Status Description	At least 80 percent
Pension Plan [Member]
Defined Benefit And Contribution Plan Disclosure [Line Items]
Net loss for the defined benefit pension plan to be amortized in next year	$ 300,000
Estimated pension plan cash obligations payable in 2020	2,200,000
Estimated pension plan cash obligations payable in 2021	2,200,000
Estimated pension plan cash obligations payable in 2022	2,200,000
Estimated pension plan cash obligations payable in 2023	2,200,000
Estimated pension plan cash obligations payable in 2024	2,200,000
Estimated pension plan cash obligations payable in 2025 through 2029	10,400,000
Health Care Plan [Member]
Defined Benefit And Contribution Plan Disclosure [Line Items]
Net loss for the defined benefit pension plan to be amortized in next year	$ 0
Minimum [Member] \| Debt Securities [Member]
Defined Benefit And Contribution Plan Disclosure [Line Items]
Current Assets Mix percentage	30.00%
Assumed average annual returns	4.00%
Minimum [Member] \| Equity Securities [Member]
Defined Benefit And Contribution Plan Disclosure [Line Items]
Current Assets Mix percentage	60.00%
Assumed average annual returns	8.00%
Maximum [Member] \| Debt Securities [Member]
Defined Benefit And Contribution Plan Disclosure [Line Items]
Current Assets Mix percentage	40.00%
Assumed average annual returns	6.00%
Maximum [Member] \| Equity Securities [Member]
Defined Benefit And Contribution Plan Disclosure [Line Items]
Current Assets Mix percentage	70.00%
Assumed average annual returns	12.00%

Shareholders' Equity - Summary of Stock Option (Detail) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Equity [Abstract]
Beginning balance of outstanding shares	507	655	1,519
Granted, Shares			128
Forfeitures, Shares	(31)	(132)	(700)
Exercised, Shares	(66)	(16)	(292)
Ending balance of outstanding, shares	410	507	655	1,519
Exercisable, Shares	355	402	463
Beginning Balance of Outstanding Weighted Average Exercise Price	$ 10.43	$ 10.53	$ 10.25
Granted, Weighted Average Exercise Price			9.24
Forfeitures, Weighted Average Exercise Price	6.84	11.53	12.44
Exercised, Weighted Average Exercise Price	4.10	5.55	3.92
Ending Balance of Outstanding Weighted Average Exercise Price	11.45	10.43	10.53	$ 10.25
Exercisable, Weighted Average Exercise Price	$ 12.08	$ 10.52	$ 10.49
Outstanding, Weighted Average Remaining Contractual Term	4 years 8 months 12 days	5 years 2 months 12 days	6 years	6 years 1 month 6 days
Exercisable, Weighted Average Remaining Contractual Term	4 years 7 months 6 days	4 years 7 months 6 days	5 years 2 months 12 days
Outstanding, Aggregate Intrinsic Value	$ 32	$ 186	$ 78
Exercisable, Aggregate Intrinsic Value	$ 29	$ 186	$ 78

Costs and Estimated Earnings on Uncompleted Contracts (Tables)

12 Months Ended

Dec. 31, 2019

Text Block [Abstract]

Costs and Estimated Earnings on Uncompleted Contracts

	December 31,
(table only in thousands)	2019			2018
Costs incurred on uncompleted contracts	$	184,321		$	174,168
Estimated earnings		77,326			67,427
Total costs and estimated earnings on uncompleted contracts, gross		261,647			241,595
Less billings to date		(261,211	)		(232,045	)
Total costs and estimated earnings on uncompleted contracts, net	$	436		$	9,550
Included in the accompanying consolidated balance sheets under the following captions:
Costs and estimated earnings in excess of billings on uncompleted contracts	$	34,805		$	29,694
Billings in excess of costs and estimated earnings on uncompleted contracts		(34,369	)		(20,144	)
Total costs and estimated earnings on uncompleted contracts, net	$	436		$	9,550

Costs and Estimated Earnings on Uncompleted Contracts

12 Months Ended

Dec. 31, 2019

Text Block [Abstract]

Costs and Estimated Earnings on Uncompleted Contracts

4.	Costs and Estimated Earnings on Uncompleted Contracts

Our contracts have various lengths to completion ranging from a few days to several months. We anticipate that a majority of our current contracts will be completed within the next 12 months and any unrecognized billings will be recorded as revenue in that same period. A significant amount of our revenue within the Energy Solutions and Industrial Solutions segments is recognized over a period of time as we perform under the contract because control of the work in process transfers continuously to the customer. The assets and liabilities recognized in association with these contracts are as follows:

	December 31,
(table only in thousands)	2019			2018
Costs incurred on uncompleted contracts	$	184,321		$	174,168
Estimated earnings		77,326			67,427
Total costs and estimated earnings on uncompleted contracts, gross		261,647			241,595
Less billings to date		(261,211	)		(232,045	)
Total costs and estimated earnings on uncompleted contracts, net	$	436		$	9,550
Included in the accompanying consolidated balance sheets under the following captions:
Costs and estimated earnings in excess of billings on uncompleted contracts	$	34,805		$	29,694
Billings in excess of costs and estimated earnings on uncompleted contracts		(34,369	)		(20,144	)
Total costs and estimated earnings on uncompleted contracts, net	$	436		$	9,550

Nature of Business and Summary of Significant Accounting Policies - Schedule of Reconciliation of Cash, Cash Equivalents and Restricted Cash Reported within Consolidated Statements of Cash Flows (Detail) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Accounting Changes And Error Corrections [Abstract]
Cash and cash equivalents	$ 35,602	$ 43,676
Restricted cash	1,356	762
Total cash, cash equivalents and restricted cash	$ 36,958	$ 44,438	$ 30,659	$ 48,006

Business Segment Information - Intra-Segment and Inter-Segment Revenues (Detail) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Segment Reporting Information [Line Items]
Net sales	$ 89,413	$ 85,266	$ 81,179	$ 86,011	$ 93,854	$ 88,256	$ 81,089	$ 74,139	$ 341,869	$ 337,339	$ 345,051
Energy Solutions Segment [Member]
Segment Reporting Information [Line Items]
Net sales									210,319	211,185	188,955
Industrial Solutions Segment [Member]
Segment Reporting Information [Line Items]
Net sales									91,347	80,699	93,960
Fluid Handling Solutions Segment [Member]
Segment Reporting Information [Line Items]
Net sales									40,203	45,455	63,037
Corporate and Other [Member]
Segment Reporting Information [Line Items]
Net sales											(901)
Intra - Segment Sales [Member]
Segment Reporting Information [Line Items]
Net sales									(16,228)	(12,479)	(15,237)
Intra - Segment Sales [Member] \| Energy Solutions Segment [Member]
Segment Reporting Information [Line Items]
Net sales									(6,650)	(7,912)	(8,833)
Intra - Segment Sales [Member] \| Industrial Solutions Segment [Member]
Segment Reporting Information [Line Items]
Net sales									(8,278)	(3,084)	(3,235)
Intra - Segment Sales [Member] \| Fluid Handling Solutions Segment [Member]
Segment Reporting Information [Line Items]
Net sales									(1,300)	(1,483)	(3,169)
Operating Segments [Member]
Segment Reporting Information [Line Items]
Net sales									360,445	352,319	363,464
Operating Segments [Member] \| Energy Solutions Segment [Member]
Segment Reporting Information [Line Items]
Net sales									217,359	220,334	197,897
Operating Segments [Member] \| Industrial Solutions Segment [Member]
Segment Reporting Information [Line Items]
Net sales									101,369	84,424	98,037
Operating Segments [Member] \| Fluid Handling Solutions Segment [Member]
Segment Reporting Information [Line Items]
Net sales									41,717	47,561	67,530
Inter-segment Elimination [Member] \| Industrial Inter-Segment Sales [Member]
Segment Reporting Information [Line Items]
Net sales									(604)	(1,848)	(601)
Inter-segment Elimination [Member] \| Energy Inter-Segment Sales [Member]
Segment Reporting Information [Line Items]
Net sales									(1,677)	(607)	(1,619)
Inter-segment Elimination [Member] \| Fluid Handling Filtration Inter-Segment Sales [Member]
Segment Reporting Information [Line Items]
Net sales									(67)	(46)	(55)
Inter-segment Elimination [Member] \| Corporate And Other Inter-Segment Sales [Member]
Segment Reporting Information [Line Items]
Net sales											(901)
Inter-segment Elimination [Member] \| Energy Solutions Segment [Member] \| Industrial Inter-Segment Sales [Member]
Segment Reporting Information [Line Items]
Net sales									(390)	(1,232)	(109)
Inter-segment Elimination [Member] \| Energy Solutions Segment [Member] \| Fluid Handling Filtration Inter-Segment Sales [Member]
Segment Reporting Information [Line Items]
Net sales										(5)
Inter-segment Elimination [Member] \| Industrial Solutions Segment [Member] \| Energy Inter-Segment Sales [Member]
Segment Reporting Information [Line Items]
Net sales									(1,677)	(600)	(787)
Inter-segment Elimination [Member] \| Industrial Solutions Segment [Member] \| Fluid Handling Filtration Inter-Segment Sales [Member]
Segment Reporting Information [Line Items]
Net sales									(67)	(41)	(55)
Inter-segment Elimination [Member] \| Fluid Handling Solutions Segment [Member] \| Industrial Inter-Segment Sales [Member]
Segment Reporting Information [Line Items]
Net sales									$ (214)	(616)	(492)
Inter-segment Elimination [Member] \| Fluid Handling Solutions Segment [Member] \| Energy Inter-Segment Sales [Member]
Segment Reporting Information [Line Items]
Net sales										$ (7)	(832)
Inter-segment Elimination [Member] \| Corporate and Other [Member] \| Corporate And Other Inter-Segment Sales [Member]
Segment Reporting Information [Line Items]
Net sales											$ (901)

Leases - Summary of Supplemental Balance Sheet Information Related to Leases (Detail) - USD ($) $ in Thousands	Dec. 31, 2019	Jan. 01, 2019
Operating leases
Right-of-use assets from operating leases	$ 13,607	$ 13,300
Operating lease liabilities, current	$ 2,610
Operating Lease, Liability, Current, Statement of Financial Position [Extensible List]	us-gaap:AccountsPayableAndAccruedLiabilitiesMember
Operating lease liabilities (Note 12)	$ 11,116
Total operating lease liabilities	13,726	$ 13,300
Finance leases
Finance leases right of use asset	$ 3,255
Finance Lease, Right-of-Use Asset, Statement of Financial Position [Extensible List]	us-gaap:PropertyPlantAndEquipmentMember
Finance lease liabilities, current	$ 516
Finance Lease, Liability, Current, Statement of Financial Position [Extensible List]	us-gaap:AccountsPayableAndAccruedLiabilitiesMember
Finance lease liabilities, non-current	$ 7,340
Finance Lease, Liability, Noncurrent, Statement of Financial Position [Extensible List]	us-gaap:OtherLiabilitiesMember
Total finance lease liabilities	$ 7,856

Business Segment Information - Net Sales and Income from Operation by Business Segment (Detail) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Segment Reporting Information [Line Items]
Net sales	$ 89,413	$ 85,266	$ 81,179	$ 86,011	$ 93,854	$ 88,256	$ 81,089	$ 74,139	$ 341,869	$ 337,339	$ 345,051
Income (loss) from operations									17,990	10,002	8,024
Energy Solutions Segment [Member]
Segment Reporting Information [Line Items]
Net sales									210,319	211,185	188,955
Income (loss) from operations									33,886	28,797	14,565
Industrial Solutions Segment [Member]
Segment Reporting Information [Line Items]
Net sales									91,347	80,699	93,960
Income (loss) from operations									5,679	6,308	8,800
Fluid Handling Solutions Segment [Member]
Segment Reporting Information [Line Items]
Net sales									40,203	45,455	63,037
Income (loss) from operations									5,558	7,730	14,059
Corporate and Other [Member]
Segment Reporting Information [Line Items]
Net sales											(901)
Income (loss) from operations									$ (27,133)	$ (32,833)	(26,649)
Inter-segment Elimination [Member]
Segment Reporting Information [Line Items]
Income (loss) from operations											$ (2,751)

Pension and Employee Benefit Plans - Summary of Pension Fund General Information (Detail)	12 Months Ended
	Dec. 31, 2019
Multiemployer Plans [Line Items]
EIN/Pension Number	13-2566064
Sheet Metal Workers' National Pension Fund [Member]
Multiemployer Plans [Line Items]
EIN/Pension Number	52-6112463
Plan Number	001
Pension Protection Act Zone Status	Yellow
FIP/RP Status Pending/Implemented	Implemented
Surcharge Imposed	No
Expiration of Collective Bargaining Agreement	various
Sheet Metal Workers Local Two Two Four Pension Plan [Member]
Multiemployer Plans [Line Items]
EIN/Pension Number	31-6171353
Plan Number	001
Pension Protection Act Zone Status	Yellow
FIP/RP Status Pending/Implemented	Implemented
Surcharge Imposed	No
Expiration of Collective Bargaining Agreement	May 31, 2022
Sheet Metal Workers Local Twenty Indianapolis Area Pension Fund [Member]
Multiemployer Plans [Line Items]
EIN/Pension Number	51-0168516
Plan Number	001
Pension Protection Act Zone Status	Green
FIP/RP Status Pending/Implemented	NA
Surcharge Imposed	No
Expiration of Collective Bargaining Agreement	May 31, 2020
Sheet Metal Workers Local One Seven Seven Pension Fund [Member]
Multiemployer Plans [Line Items]
EIN/Pension Number	62-6093256
Plan Number	001
Pension Protection Act Zone Status	Green
FIP/RP Status Pending/Implemented	NA
Surcharge Imposed	No
Expiration of Collective Bargaining Agreement	April 30, 2023