Business Segment Information - Items Provided to CODM (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2025	Mar. 31, 2024
Business Segment Information
Capital expenditures	$ 4,488	$ 3,605
Depreciation and amortization	42,482	46,353
Corporate, eliminations and other
Business Segment Information
Capital expenditures	107	126
Depreciation and amortization	95	104
Well Intervention | Reportable Segments
Business Segment Information
Capital expenditures	2,968	2,216
Depreciation and amortization	30,591	31,309
Robotics | Reportable Segments
Business Segment Information
Capital expenditures	1,199	757
Depreciation and amortization	1,369	2,305
Shallow Water Abandonment | Reportable Segments
Business Segment Information
Capital expenditures	214	506
Depreciation and amortization	5,678	5,497
Production Facilities | Reportable Segments
Business Segment Information
Depreciation and amortization	$ 4,749	$ 7,138