Revenue From Contracts With Customers - Disaggregation Of Revenue (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Revenue From Contracts With Customers
Net revenues	$ 1,289,728	$ 873,100	$ 674,728
Intercompany Eliminations
Revenue From Contracts With Customers
Net revenues	(63,747)	(50,187)	(48,479)
Well Intervention | Reportable Segments
Revenue From Contracts With Customers
Net revenues	732,761	524,241	516,564
Well Intervention | Intercompany Eliminations
Revenue From Contracts With Customers
Net revenues	(28,396)	(16,545)	(21,521)
Robotics | Reportable Segments
Revenue From Contracts With Customers
Net revenues	257,875	191,921	137,295
Robotics | Intercompany Eliminations
Revenue From Contracts With Customers
Net revenues	(35,263)	(33,642)	(26,958)
Shallow Water Abandonment | Reportable Segments
Revenue From Contracts With Customers
Net revenues	274,954	124,810
Shallow Water Abandonment | Intercompany Eliminations
Revenue From Contracts With Customers
Net revenues	(88)
Production Facilities | Reportable Segments
Revenue From Contracts With Customers
Net revenues	87,885	82,315	69,348
Short-term
Revenue From Contracts With Customers
Net revenues	815,047	617,575	397,775
Short-term | Intercompany Eliminations
Revenue From Contracts With Customers
Net revenues	(3,441)	(635)	(627)
Short-term | Well Intervention | Reportable Segments
Revenue From Contracts With Customers
Net revenues	443,332	395,867	308,734
Short-term | Robotics | Reportable Segments
Revenue From Contracts With Customers
Net revenues	133,740	97,533	89,668
Short-term | Shallow Water Abandonment | Reportable Segments
Revenue From Contracts With Customers
Net revenues	241,416	124,810
Long-term
Revenue From Contracts With Customers
Net revenues	474,681	255,525	276,953
Long-term | Intercompany Eliminations
Revenue From Contracts With Customers
Net revenues	(60,306)	(49,552)	(47,852)
Long-term | Well Intervention | Reportable Segments
Revenue From Contracts With Customers
Net revenues	289,429	128,374	207,830
Long-term | Robotics | Reportable Segments
Revenue From Contracts With Customers
Net revenues	124,135	94,388	47,627
Long-term | Shallow Water Abandonment | Reportable Segments
Revenue From Contracts With Customers
Net revenues	33,538
Long-term | Production Facilities | Reportable Segments
Revenue From Contracts With Customers
Net revenues	$ 87,885	$ 82,315	$ 69,348