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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
	Mar. 10, 2023	Mar. 31, 2025	Mar. 31, 2024
Related Party
Contract revenues		$ 188,653	$ 160,672
Dragados/Hawaiian Dredging/Orion Joint Venture \| US Navy
Related Party
Contract awarded	$ 2,800,000
Dragados/Hawaiian Dredging/Orion Joint Venture
Related Party
Contract awarded	$ 454,500
Contract revenues		$ 33,300	$ 38,000