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

Related Party Transaction (Details) - USD ($) $ in Thousands		12 Months Ended
	Mar. 10, 2023	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Related Party
Contract revenues		$ 711,778	$ 748,322	$ 601,360
Dragados/Hawaiian Dredging/Orion Joint Venture
Related Party
Contract awarded	$ 435,400
Contract revenues		$ 90,500
Dragados/Hawaiian Dredging/Orion Joint Venture \| US Navy
Related Party
Contract awarded	$ 2,800,000