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+ Details

Related Party Transaction (Details) - USD ($) $ in Thousands		3 Months Ended		6 Months Ended
	Mar. 10, 2023	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Related Party
Contract revenues		$ 182,534	$ 194,575	$ 341,708	$ 369,506
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	$ 435,400
Contract revenues		$ 25,500		$ 25,500