Business Segment Information - Intercompany Segment Revenues (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Business Segment Information
Net revenues	$ (1,289,728)	$ (873,100)	$ (674,728)
Intercompany Eliminations
Business Segment Information
Net revenues	63,747	50,187	48,479
Intercompany Eliminations | Well Intervention
Business Segment Information
Net revenues	28,396	16,545	21,521
Intercompany Eliminations | Robotics
Business Segment Information
Net revenues	35,263	$ 33,642	$ 26,958
Intercompany Eliminations | Shallow Water Abandonment
Business Segment Information
Net revenues	$ 88