Selected Balance Sheet Information (Details) - USD ($) $ in Thousands	Mar. 31, 2026	Dec. 31, 2025
Inventory [Line Items]
Inventory, net	$ 208,233	$ 201,595
Subsea Robotics	12,786	12,167
Inventory, net:
Total	208,233	201,595
Other Assets, Noncurrent	136,081	129,254
Accrued liabilities:
Payroll and related costs	157,488	186,433
Accounts Payable, Other, Current	43,049	37,769
Income taxes payable	43,799	43,828
Current operating lease liability	128,813	128,453
Interest Payable, Current	5,000	12,500
Other	59,957	62,988
Total	438,106	471,971
Disclosure Text Block Supplement [Abstract]
Subsea Robotics	12,786	12,167
Subsea Robotics Member
Inventory [Line Items]
Inventory, Parts and Components, Net of Reserves	111,912	105,908
Disclosure Text Block Supplement [Abstract]
Inventory, Parts and Components, Net of Reserves	111,912	105,908
Manufactured Products Member
Inventory [Line Items]
Inventory, Parts and Components, Net of Reserves	83,535	83,520
Disclosure Text Block Supplement [Abstract]
Inventory, Parts and Components, Net of Reserves	$ 83,535	$ 83,520