Operations by Business Segment and Geographic Area Operations by Business Segment and Geographic Area - Other Significant Reconciling Items (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Segment Reporting, Asset Reconciling Item [Line Items]
Depreciation	$ 86,000	$ 89,000	$ 99,000
Operating Lease, Right-of-Use Asset	349,751	334,721
Amortization of Intangible Assets	$ 16,000	14,000	6,400
Corporate and Other [Member]
Segment Reporting, Asset Reconciling Item [Line Items]
Property, Plant and Equipment, Additions		5,880	2,880
Subsea Robotics
Segment Reporting, Asset Reconciling Item [Line Items]
Property, Plant and Equipment, Additions		63,820	67,197
Manufactured Products
Segment Reporting, Asset Reconciling Item [Line Items]
Property, Plant and Equipment, Additions		9,648	6,776
Offshore Projects Group
Segment Reporting, Asset Reconciling Item [Line Items]
Property, Plant and Equipment, Additions		18,595	8,574
Integrity Management & Digital Solutions
Segment Reporting, Asset Reconciling Item [Line Items]
Property, Plant and Equipment, Additions		30,899	10,346
Aerospace and Defense Technologies
Segment Reporting, Asset Reconciling Item [Line Items]
Property, Plant and Equipment, Additions		$ 5,443	$ 4,953