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Pay vs Performance Disclosure - USD ($)

12 Months Ended

Dec. 31, 2022

Dec. 31, 2021

Dec. 31, 2020

Pay vs Performance Disclosure [Table]

Pay vs Performance [Table Text Block]

pay-versus-performance

			AVERAGE SUMMARY	AVERAGE	VALUE OF INITIAL FIXED $100 INVESTMENT BASED ON: (4)
YEAR(1)	SUMMARY COMPENSATION TABLE TOTAL FOR PEO ($)(2)	COMPENSATION ACTUALLY PAID TO PEO ($)(3)	COMPENSATION TABLE TOTAL FOR NON-PEO NAMED EXECUTIVE OFFICERS ($)(2)	COMPENSATION ACTUALLY PAID TO NON-PEO NAMED EXECUTIVE OFFICERS ($)(3)	TOTAL SHAREHOLDER RETURN ($)	PEER GROUP TOTAL SHAREHOLDER RETURN ($)(5)	NET INCOME ($ IN MM)	[ADJUSTED EBITDA]4 ($ IN MM) (6)
2022	3,801,960	(307,784)	899,163	308,910	52.5	152.7	(34.1)	17.0
2021	3,103,804	3,587,147	1,125,138	1,114,133	138.8	160.2	49.4	127.4
2020	3,300,791	5,711,252	1,226,647	1,571,869	116.2	133.8	66.1	151.1

(1)Lasse J. Petterson served as the Company’s principal executive officer (“PEO”) for the entirety of 2020, 2021 and 2022 and the Company’s other named executive officers for the applicable years were as follows:

-2022: Scott L. Kornblau; Vivienne R. Schiffer; James J. Tastard; Eleni Beyko; and David E. Simonelli.

-2021: Scott L. Kornblau; David E. Simonelli; Vivienne R. Schiffer; James J. Tastard; and Mark W. Marinko.

-2020: Mark W. Marinko; David E. Simonelli; James J. Tastard; William H. Hanson; Kathleen M. LaVoy; and Annette W. Cyr.

(2)Amounts reported in this column represent (i) the total compensation reported in the Summary Compensation Table for the applicable year in the case of Mr. Petterson and (ii) the average of the total compensation reported in the Summary Compensation Table for the applicable year for the named executive officers for the applicable year other than Mr. Petterson.

(3)To calculate compensation actually paid, adjustments were made to the amounts reported in the Summary Compensation Table for the applicable year. A reconciliation of the adjustments for Mr. Petterson and for the average of the other named executive officer is set forth following the footnotes to this table.

(4)Pursuant to rules of the SEC, the comparison assumes $100 was invested on December 31, 2019. Historic stock price performance is not necessarily indicative of future stock price performance.

(5)The TSR Peer Group consists of Ameresco, Inc., Argan, Inc., Badger Daylighting Infrastructure Solutions Ltd., Construction Partners, Inc., Helix Energy Solutions Group, Inc., Helmerich & Payne, Inc., Hill International, Inc., IES Holdings, Inc., Infrastructure and Energy Alternatives, Inc., Limbach Holdings, Inc., Logistec Corporation, Matrix Service Company, Mistras Group, Inc., MYR Group Inc., NV5 Global, Inc., Oceaneering International, Inc., Orion Group Holdings, Inc., Sterling Construction Company, Inc., Team, Inc. and Tidewater Inc. Aegion Corporation was removed from the peer group due to an acquisition and Seacor Holdings was removed due to a merger. Helix Energy Solutions Group, Inc., Helmerich & Payne, Inc. and Oceaneering International, Inc. were added to the peer group.

(6)As noted in the CD&A, for 2022, the Compensation Committee determined that Adjusted EBITDA continues to be viewed as a core driver of the Company’s performance and stockholder value creation and, accordingly, was utilized as a component in the Company’s 2022 annual incentive compensation program. Adjusted EBITDA is a non-GAAP financial measure that represents net income excluding certain items which we do not believe are indicative of our ordinary results of operations.

reconciliation of compensation actually paid adjustments

YEAR	TOTAL COMPENSATION REPORTED IN SUMMARY COMPENSATION TABLE	(MINUS) VALUE OF STOCK AWARDS REPORTED	PLUS YEAR-END FAIR VALUE OF OUTSTANDING AND UNVESTED STOCK AWARDS GRANTED IN FISCAL YEAR	PLUS/(MINUS) CHANGE IN FAIR VALUE OF OUTSTANDING AND UNVESTED STOCK AWARDS GRANTED IN PRIOR FISCAL YEARS	PLUS FAIR VALUE AT VESTING OF STOCK AWARDS GRANTED AND VESTED DURING FISCAL YEAR	PLUS/(MINUS) CHANGE IN FAIR VALUE OF STOCK AWARDS GRANTED IN PRIOR FISCAL YEARS AND VESTED DURING FISCAL YEAR	(MINUS) PRIOR YEAR-END FAIR VALUE OF STOCK AWARDS GRANTED IN PRIOR FISCAL YEAR AND WERE FORFEITED DURING FISCAL YEAR	COMPENSATION ACTUALLY PAID
	($)(a)	($)(b)	($)(c)	($)(d)	($)(e)	($)(f)	($)(g)	($)
Lasse J. Petterson
2022	3,801,960	(2,971,996)	1,132,981	(731,570)	—	(113,768)	(1,425,391)	(307,784)
2021	3,103,804	(1,366,286)	1,033,610	454,725	—	1,176,741	(815,447)	3,587,147
2020	3,300,791	(1,160,000)	3,222,199	368,870	—	115,069	(135,677)	5,711,252
Average other named executive officer(h)
2022	899,163	(500,712)	189,048	(108,345)	—	(26,446)	(143,798)	308,910
2021	1,125,138	(406,642)	400,649	55,170	—	45,478	(105,660)	1,114,133
2020	1,226,647	(206,647)	521,995	44,331	—	8,095	(22,552)	1,571,869

(a)Represents Total Compensation as reported in the Summary Compensation Table for the indicated fiscal year. With respect to the Average Other Named Executive Officers, amounts shown represent averages.

(b)Represents the grant date fair value of the stock awards granted during the indicated fiscal year, computed in accordance with the methodology used for financial reporting purposes.

(c)Represents the fair value as of the indicated fiscal year-end of the outstanding and unvested stock awards granted during such fiscal year, computed in accordance with the methodology used for financial reporting purposes.

(d)Represents the change in fair value during the indicated fiscal year of the outstanding and unvested stock awards held by the applicable named executive officer as of the last day of the indicated fiscal year, computed in accordance with the methodology used for financial reporting purposes and, for awards subject to performance-based vesting conditions, based on the probable outcome of such performance-based vesting conditions as of the last day of the fiscal year.

(e)Represents the fair value at vesting of the stock awards that were granted and vested during the indicated fiscal year, computed in accordance with the methodology used for financial reporting purposes.

(f)Represents the change in fair value, measured from the prior fiscal year-end to the vesting date, of each stock award that was granted in a prior fiscal year and which vested during the indicated fiscal year, computed in accordance with the methodology used for financial reporting purposes.

(g)Represents the fair value as of the last day of the prior fiscal year of the stock awards that were granted in a prior fiscal year and which failed to meet the applicable vesting conditions in the indicated fiscal year, computed in accordance with the methodology used for financial reporting purposes.

(h)See footnote 1 above for the named executive officers included in the average for each year.

Company Selected Measure Name

Adjusted EBITDA

Named Executive Officers, Footnote [Text Block]

(1)Lasse J. Petterson served as the Company’s principal executive officer (“PEO”) for the entirety of 2020, 2021 and 2022 and the Company’s other named executive officers for the applicable years were as follows:

-2022: Scott L. Kornblau; Vivienne R. Schiffer; James J. Tastard; Eleni Beyko; and David E. Simonelli.

-2021: Scott L. Kornblau; David E. Simonelli; Vivienne R. Schiffer; James J. Tastard; and Mark W. Marinko.

-2020: Mark W. Marinko; David E. Simonelli; James J. Tastard; William H. Hanson; Kathleen M. LaVoy; and Annette W. Cyr.

Peer Group Issuers, Footnote [Text Block]

(5)The TSR Peer Group consists of Ameresco, Inc., Argan, Inc., Badger Daylighting Infrastructure Solutions Ltd., Construction Partners, Inc., Helix Energy Solutions Group, Inc., Helmerich & Payne, Inc., Hill International, Inc., IES Holdings, Inc., Infrastructure and Energy Alternatives, Inc., Limbach Holdings, Inc., Logistec Corporation, Matrix Service Company, Mistras Group, Inc., MYR Group Inc., NV5 Global, Inc., Oceaneering International, Inc., Orion Group Holdings, Inc., Sterling Construction Company, Inc., Team, Inc. and Tidewater Inc. Aegion Corporation was removed from the peer group due to an acquisition and Seacor Holdings was removed due to a merger. Helix Energy Solutions Group, Inc., Helmerich & Payne, Inc. and Oceaneering International, Inc. were added to the peer group.

PEO Total Compensation Amount

$ 3,801,960

$ 3,103,804

$ 3,300,791

PEO Actually Paid Compensation Amount

$ (307,784)

3,587,147

5,711,252

Adjustment To PEO Compensation, Footnote [Text Block]

(2)Amounts reported in this column represent (i) the total compensation reported in the Summary Compensation Table for the applicable year in the case of Mr. Petterson and (ii) the average of the total compensation reported in the Summary Compensation Table for the applicable year for the named executive officers for the applicable year other than Mr. Petterson.

(3)To calculate compensation actually paid, adjustments were made to the amounts reported in the Summary Compensation Table for the applicable year. A reconciliation of the adjustments for Mr. Petterson and for the average of the other named executive officer is set forth following the footnotes to this table.

Non-PEO NEO Average Total Compensation Amount

$ 899,163

1,125,138

1,226,647

Non-PEO NEO Average Compensation Actually Paid Amount

$ 308,910

1,114,133

1,571,869

Adjustment to Non-PEO NEO Compensation Footnote [Text Block]

(2)Amounts reported in this column represent (i) the total compensation reported in the Summary Compensation Table for the applicable year in the case of Mr. Petterson and (ii) the average of the total compensation reported in the Summary Compensation Table for the applicable year for the named executive officers for the applicable year other than Mr. Petterson.

(3)To calculate compensation actually paid, adjustments were made to the amounts reported in the Summary Compensation Table for the applicable year. A reconciliation of the adjustments for Mr. Petterson and for the average of the other named executive officer is set forth following the footnotes to this table.

Compensation Actually Paid vs. Total Shareholder Return [Text Block]

CAP and Cumulative TSR / Cumulative TSR of the Peer Group

 

Compensation Actually Paid vs. Net Income [Text Block]

CAP and Company Net Income

 

Table of Contents

Compensation Actually Paid vs. Company Selected Measure [Text Block]

CAP and Company Adjusted EBITDA

 

Table of Contents

Tabular List [Table Text Block]

The following is a list of performance measures, which in our assessment represent the most important performance measures used by the Compensation Committee to link compensation actually paid to the named executive officers for 2022. Please see the “CD&A” for a further description of the metrics used in the Company’s executive compensation program.

•Adjusted EBITDA

•Adjusted EBIT

•Earnings per Share

•Stock Price

•Offshore wind business objectives for Mr. Petterson and Ms. Beyko

Total Shareholder Return Amount

$ 52.5

138.8

116.2

Peer Group Total Shareholder Return Amount

152.7

160.2

133.8

Net Income (Loss)

$ (34,100,000)

$ 49,400,000

$ 66,100,000

Company Selected Measure Amount

17,000,000.0

127,400,000

151,100,000

PEO Name

Lasse J. Petterson

Lasse J. Petterson

Lasse J. Petterson

Reconciliation Of Compensation Actually Paid Adjustment [Table Text Block]

reconciliation of compensation actually paid adjustments

YEAR	TOTAL COMPENSATION REPORTED IN SUMMARY COMPENSATION TABLE	(MINUS) VALUE OF STOCK AWARDS REPORTED	PLUS YEAR-END FAIR VALUE OF OUTSTANDING AND UNVESTED STOCK AWARDS GRANTED IN FISCAL YEAR	PLUS/(MINUS) CHANGE IN FAIR VALUE OF OUTSTANDING AND UNVESTED STOCK AWARDS GRANTED IN PRIOR FISCAL YEARS	PLUS FAIR VALUE AT VESTING OF STOCK AWARDS GRANTED AND VESTED DURING FISCAL YEAR	PLUS/(MINUS) CHANGE IN FAIR VALUE OF STOCK AWARDS GRANTED IN PRIOR FISCAL YEARS AND VESTED DURING FISCAL YEAR	(MINUS) PRIOR YEAR-END FAIR VALUE OF STOCK AWARDS GRANTED IN PRIOR FISCAL YEAR AND WERE FORFEITED DURING FISCAL YEAR	COMPENSATION ACTUALLY PAID
	($)(a)	($)(b)	($)(c)	($)(d)	($)(e)	($)(f)	($)(g)	($)
Lasse J. Petterson
2022	3,801,960	(2,971,996)	1,132,981	(731,570)	—	(113,768)	(1,425,391)	(307,784)
2021	3,103,804	(1,366,286)	1,033,610	454,725	—	1,176,741	(815,447)	3,587,147
2020	3,300,791	(1,160,000)	3,222,199	368,870	—	115,069	(135,677)	5,711,252
Average other named executive officer(h)
2022	899,163	(500,712)	189,048	(108,345)	—	(26,446)	(143,798)	308,910
2021	1,125,138	(406,642)	400,649	55,170	—	45,478	(105,660)	1,114,133
2020	1,226,647	(206,647)	521,995	44,331	—	8,095	(22,552)	1,571,869

(a)Represents Total Compensation as reported in the Summary Compensation Table for the indicated fiscal year. With respect to the Average Other Named Executive Officers, amounts shown represent averages.

(b)Represents the grant date fair value of the stock awards granted during the indicated fiscal year, computed in accordance with the methodology used for financial reporting purposes.

(c)Represents the fair value as of the indicated fiscal year-end of the outstanding and unvested stock awards granted during such fiscal year, computed in accordance with the methodology used for financial reporting purposes.

(d)Represents the change in fair value during the indicated fiscal year of the outstanding and unvested stock awards held by the applicable named executive officer as of the last day of the indicated fiscal year, computed in accordance with the methodology used for financial reporting purposes and, for awards subject to performance-based vesting conditions, based on the probable outcome of such performance-based vesting conditions as of the last day of the fiscal year.

(e)Represents the fair value at vesting of the stock awards that were granted and vested during the indicated fiscal year, computed in accordance with the methodology used for financial reporting purposes.

(f)Represents the change in fair value, measured from the prior fiscal year-end to the vesting date, of each stock award that was granted in a prior fiscal year and which vested during the indicated fiscal year, computed in accordance with the methodology used for financial reporting purposes.

(g)Represents the fair value as of the last day of the prior fiscal year of the stock awards that were granted in a prior fiscal year and which failed to meet the applicable vesting conditions in the indicated fiscal year, computed in accordance with the methodology used for financial reporting purposes.

(h)See footnote 1 above for the named executive officers included in the average for each year.

Measure [Axis]: 1

Pay vs Performance Disclosure [Table]

Measure Name

Adjusted EBITDA

Non-GAAP Measure Description [Text Block]

(6)As noted in the CD&A, for 2022, the Compensation Committee determined that Adjusted EBITDA continues to be viewed as a core driver of the Company’s performance and stockholder value creation and, accordingly, was utilized as a component in the Company’s 2022 annual incentive compensation program. Adjusted EBITDA is a non-GAAP financial measure that represents net income excluding certain items which we do not believe are indicative of our ordinary results of operations.

Measure [Axis]: 2

Pay vs Performance Disclosure [Table]

Measure Name

Adjusted EBIT

Measure [Axis]: 3

Pay vs Performance Disclosure [Table]

Measure Name

Earnings per Share

Measure [Axis]: 4

Pay vs Performance Disclosure [Table]

Measure Name

Stock Price

Measure [Axis]: 5

Pay vs Performance Disclosure [Table]

Measure Name

Offshore wind business objectives for Mr. Petterson and Ms. Beyko

PEO [Member] | (Minus) Value of Stock Awards Reported [Member]

Pay vs Performance Disclosure [Table]

Adjustment to Compensation Amount

$ (2,971,996)

$ (1,366,286)

$ (1,160,000)

PEO [Member] | Plus Year-end Fair Value of Outstanding and Unvested Stock Awards Granted in Fiscal Year [Member]

Pay vs Performance Disclosure [Table]

Adjustment to Compensation Amount

1,132,981

1,033,610

3,222,199

PEO [Member] | Plus/(Minus) Change in Fair Value of Outstanding and Unvested Stock Awards Granted in Prior Fiscal Years [Member]

Pay vs Performance Disclosure [Table]

Adjustment to Compensation Amount

(731,570)

454,725

368,870

PEO [Member] | Plus Fair Value at Vesting of Stock Awards Granted and Vested During Fiscal Year [Member]

Pay vs Performance Disclosure [Table]

Adjustment to Compensation Amount

PEO [Member] | Plus/(Minus) Change in Fair Value of Stock Awards Granted in Prior Fiscal Years and Vested During Fiscal Year [Member]

Pay vs Performance Disclosure [Table]

Adjustment to Compensation Amount

(113,768)

1,176,741

115,069

PEO [Member] | Prior Year-end Fair Value of Stock Awards Granted in Prior Fiscal Year and Were Forfeited During Fiscal Year [Member]

Pay vs Performance Disclosure [Table]

Adjustment to Compensation Amount

(1,425,391)

(815,447)

(135,677)

Non-PEO NEO [Member] | (Minus) Value of Stock Awards Reported [Member]

Pay vs Performance Disclosure [Table]

Adjustment to Compensation Amount

(500,712)

(406,642)

(206,647)

Non-PEO NEO [Member] | Plus Year-end Fair Value of Outstanding and Unvested Stock Awards Granted in Fiscal Year [Member]

Pay vs Performance Disclosure [Table]

Adjustment to Compensation Amount

189,048

400,649

521,995

Non-PEO NEO [Member] | Plus/(Minus) Change in Fair Value of Outstanding and Unvested Stock Awards Granted in Prior Fiscal Years [Member]

Pay vs Performance Disclosure [Table]

Adjustment to Compensation Amount

(108,345)

55,170

44,331

Non-PEO NEO [Member] | Plus Fair Value at Vesting of Stock Awards Granted and Vested During Fiscal Year [Member]

Pay vs Performance Disclosure [Table]

Adjustment to Compensation Amount

Non-PEO NEO [Member] | Plus/(Minus) Change in Fair Value of Stock Awards Granted in Prior Fiscal Years and Vested During Fiscal Year [Member]

Pay vs Performance Disclosure [Table]

Adjustment to Compensation Amount

(26,446)

45,478

8,095

Non-PEO NEO [Member] | Prior Year-end Fair Value of Stock Awards Granted in Prior Fiscal Year and Were Forfeited During Fiscal Year [Member]

Pay vs Performance Disclosure [Table]

Adjustment to Compensation Amount

$ (143,798)

$ (105,660)

$ (22,552)

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