Revenue From Contracts With Customers - Disaggregation Of Revenue (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Disaggregation of Revenue [Line Items]
Net revenues	$ 150,125	$ 163,415
Intercompany Eliminations
Disaggregation of Revenue [Line Items]
Net revenues	(11,887)	(8,956)
Well Intervention
Disaggregation of Revenue [Line Items]
Net revenues	106,367	133,768
Well Intervention | Intercompany Eliminations
Disaggregation of Revenue [Line Items]
Net revenues	(3,850)	(2,587)
Robotics
Disaggregation of Revenue [Line Items]
Net revenues	37,351	22,156
Robotics | Intercompany Eliminations
Disaggregation of Revenue [Line Items]
Net revenues	(8,037)	(6,369)
Production Facilities
Disaggregation of Revenue [Line Items]
Net revenues	18,294	16,447
Short-term
Disaggregation of Revenue [Line Items]
Net revenues	111,848	58,624
Short-term | Intercompany Eliminations
Disaggregation of Revenue [Line Items]
Net revenues	(635)
Short-term | Well Intervention
Disaggregation of Revenue [Line Items]
Net revenues	91,346	49,217
Short-term | Robotics
Disaggregation of Revenue [Line Items]
Net revenues	21,137	9,407
Long-term
Disaggregation of Revenue [Line Items]
Net revenues	38,277	104,791
Long-term | Intercompany Eliminations
Disaggregation of Revenue [Line Items]
Net revenues	(11,252)	(8,956)
Long-term | Well Intervention
Disaggregation of Revenue [Line Items]
Net revenues	15,021	84,551
Long-term | Robotics
Disaggregation of Revenue [Line Items]
Net revenues	16,214	12,749
Long-term | Production Facilities
Disaggregation of Revenue [Line Items]
Net revenues	$ 18,294	$ 16,447