Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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+ Details

- Definition

Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise.

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+ Details

Concentration of Risk and Enterprise-Wide Disclosures - Dragados/Hawaiian Dredging/Orion Joint Venture (Details) - USD ($) $ in Thousands		3 Months Ended		9 Months Ended
	Mar. 10, 2023	Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024
Related Party
Contract revenues		$ 225,097	$ 226,675	$ 619,037	$ 579,514
Dragados/Hawaiian Dredging/Orion Joint Venture
Related Party
Contract awarded	$ 461,300
Contract revenues		$ 33,700	$ 57,200	$ 100,400	$ 150,700