Revenue From Contracts With Customers - Disaggregation Of Revenue (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Revenue From Contracts With Customers
Total Revenue	$ 1,358,560	$ 1,289,728	$ 873,100
Intercompany Eliminations
Revenue From Contracts With Customers
Total Revenue	(44,668)	(38,704)	(34,277)
Well Intervention
Revenue From Contracts With Customers
Total Revenue	823,472	704,365	507,696
Well Intervention | Reportable Segments
Revenue From Contracts With Customers
Total Revenue	829,862	707,718	508,331
Well Intervention | Intercompany Eliminations
Revenue From Contracts With Customers
Total Revenue	6,390	3,353	635
Robotics
Revenue From Contracts With Customers
Total Revenue	259,639	222,612	158,279
Robotics | Reportable Segments
Revenue From Contracts With Customers
Total Revenue	297,678	257,875	191,921
Robotics | Intercompany Eliminations
Revenue From Contracts With Customers
Total Revenue	38,039	35,263	33,642
Shallow Water Abandonment
Revenue From Contracts With Customers
Total Revenue	186,740	274,866	124,810
Shallow Water Abandonment | Reportable Segments
Revenue From Contracts With Customers
Total Revenue	186,979	274,954	124,810
Shallow Water Abandonment | Intercompany Eliminations
Revenue From Contracts With Customers
Total Revenue	239	88
Production Facilities
Revenue From Contracts With Customers
Total Revenue	88,709	87,885	82,315
Production Facilities | Reportable Segments
Revenue From Contracts With Customers
Total Revenue	88,709	87,885	82,315
Production maximization
Revenue From Contracts With Customers
Total Revenue	593,498	416,227	441,736
Production maximization | Intercompany Eliminations
Revenue From Contracts With Customers
Total Revenue	(29,678)	(17,824)	(18,115)
Production maximization | Well Intervention | Reportable Segments
Revenue From Contracts With Customers
Total Revenue	408,791	228,649	302,409
Production maximization | Robotics | Reportable Segments
Revenue From Contracts With Customers
Total Revenue	117,207	103,692	66,068
Production maximization | Shallow Water Abandonment | Reportable Segments
Revenue From Contracts With Customers
Total Revenue	8,469	13,825	9,059
Production maximization | Production Facilities | Reportable Segments
Revenue From Contracts With Customers
Total Revenue	88,709	87,885	82,315
Decommissioning
Revenue From Contracts With Customers
Total Revenue	597,964	748,644	319,806
Decommissioning | Intercompany Eliminations
Revenue From Contracts With Customers
Total Revenue	(14,272)	(18,690)	(14,977)
Decommissioning | Well Intervention | Reportable Segments
Revenue From Contracts With Customers
Total Revenue	416,057	458,437	194,985
Decommissioning | Robotics | Reportable Segments
Revenue From Contracts With Customers
Total Revenue	17,717	47,768	24,289
Decommissioning | Shallow Water Abandonment | Reportable Segments
Revenue From Contracts With Customers
Total Revenue	178,462	261,129	115,509
Renewables
Revenue From Contracts With Customers
Total Revenue	152,306	99,861	82,793
Renewables | Intercompany Eliminations
Revenue From Contracts With Customers
Total Revenue			(635)
Renewables | Well Intervention | Reportable Segments
Revenue From Contracts With Customers
Total Revenue			635
Renewables | Robotics | Reportable Segments
Revenue From Contracts With Customers
Total Revenue	152,306	99,861	82,793
Other
Revenue From Contracts With Customers
Total Revenue	14,792	24,996	28,765
Other | Intercompany Eliminations
Revenue From Contracts With Customers
Total Revenue	(718)	(2,190)	(550)
Other | Well Intervention | Reportable Segments
Revenue From Contracts With Customers
Total Revenue	5,014	20,632	10,302
Other | Robotics | Reportable Segments
Revenue From Contracts With Customers
Total Revenue	10,448	6,554	18,771
Other | Shallow Water Abandonment | Reportable Segments
Revenue From Contracts With Customers
Total Revenue	48		242
Short-term
Revenue From Contracts With Customers
Total Revenue	800,318	815,047	617,575
Short-term | Intercompany Eliminations
Revenue From Contracts With Customers
Total Revenue	(6,782)	(3,441)	(635)
Short-term | Well Intervention | Reportable Segments
Revenue From Contracts With Customers
Total Revenue	496,164	443,332	395,867
Short-term | Robotics | Reportable Segments
Revenue From Contracts With Customers
Total Revenue	156,656	133,740	97,533
Short-term | Shallow Water Abandonment | Reportable Segments
Revenue From Contracts With Customers
Total Revenue	154,280	241,416	124,810
Long-term
Revenue From Contracts With Customers
Total Revenue	558,242	474,681	255,525
Long-term | Intercompany Eliminations
Revenue From Contracts With Customers
Total Revenue	(37,886)	(35,263)	(33,642)
Long-term | Well Intervention | Reportable Segments
Revenue From Contracts With Customers
Total Revenue	333,698	264,386	112,464
Long-term | Robotics | Reportable Segments
Revenue From Contracts With Customers
Total Revenue	141,022	124,135	94,388
Long-term | Shallow Water Abandonment | Reportable Segments
Revenue From Contracts With Customers
Total Revenue	32,699	33,538
Long-term | Production Facilities | Reportable Segments
Revenue From Contracts With Customers
Total Revenue	$ 88,709	$ 87,885	$ 82,315