Business Segment Information - Intercompany Segment Revenues (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Business Segment Information
Net revenues	$ (395,670)	$ (272,547)	$ (954,571)	$ (585,284)
Intercompany Eliminations
Business Segment Information
Net revenues	17,084	13,409	43,834	36,503
Intercompany Eliminations | Well Intervention
Business Segment Information
Net revenues	6,832	4,303	18,174	12,046
Intercompany Eliminations | Robotics
Business Segment Information
Net revenues	$ 10,252	8,971	25,634	24,322
Intercompany Eliminations | Shallow Water Abandonment
Business Segment Information
Net revenues		$ 135	$ 26	$ 135