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Revenue (Tables)

6 Months Ended

Jun. 30, 2025

Revenue from Contract with Customer [Abstract]

Summary of Contract Revenues by Type of Work and Customer

The Company’s contract revenues by type of work, for the periods indicated, are as follows:

		Three Months Ended								Six Months Ended
		June 30,								June 30,
Revenues		2025				2024				2025				2024
Capital		$	105,674			$	70,747			$	196,492			$	140,647
Coastal protection			65,227				70,195				185,831				134,121
Maintenance			22,854				29,144				54,297				93,978
Total revenues		$	193,755			$	170,086			$	436,620			$	368,746

The Company’s contract revenues by type of customer, for the periods indicated, are as follows:

		Three Months Ended								Six Months Ended
		June 30,								June 30,
Revenues		2025				2024				2025				2024
Federal government		$	90,941			$	118,687			$	225,349			$	253,476
State and local government			21,109				21,463				57,503				69,163
Private			81,705				29,936				153,768				46,107
Total revenues		$	193,755			$	170,086			$	436,620			$	368,746

Schedule of Accounts Receivable

Accounts receivable at June 30, 2025 and December 31, 2024 are as follows:

		June 30,				December 31,
		2025				2024
Completed contracts		$	12,368			$	660
Contracts in progress			89,405				105,159
Retainage			9,678				12,575
			111,451				118,394
Allowance for credit losses			(364	)			(364	)
Total accounts receivable—net		$	111,087			$	118,030

Components of Contracts in Progress

The components of contracts in progress at June 30, 2025 and December 31, 2024 are as follows:

		June 30,				December 31,
		2025				2024
Costs and earnings in excess of billings:
Costs and earnings for contracts in progress		$	231,757			$	206,933
Amounts billed			(184,682	)			(153,208	)
Costs and earnings in excess of billings for contracts in progress			47,075				53,725
Costs and earnings in excess of billings for completed contracts			12,107				20,472
Total contract revenues in excess of billings		$	59,182			$	74,197
Current portion of contract revenues in excess of billings		$	59,182			$	74,197
Billings in excess of costs and earnings:
Amounts billed		$	(499,516	)		$	(303,810	)
Costs and earnings for contracts in progress			470,760				278,014
Total billings in excess of contract revenues		$	(28,756	)		$	(25,796	)

X

- Definition

Tabular disclosure of long-term contract or program.

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- Definition

Tabular disclosure of disaggregation of revenue into categories depicting how nature, amount, timing, and uncertainty of revenue and cash flows are affected by economic factor.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 606
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 5
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479806/606-10-50-5

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- Definition

Tabular disclosure of the various types of trade accounts and notes receivable and for each the gross carrying value, allowance, and net carrying value as of the balance sheet date. Presentation is categorized by current, noncurrent and unclassified receivables.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 210
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(4))
-Publisher FASB
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-SubTopic 10
-Name Accounting Standards Codification
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-Publisher FASB
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