Consolidated Statements of Equity - USD ($) $ in Thousands	Total	Common Stock [Member]	Additional Paid-in Capital [Member]	Additional Paid-in Capital [Member] Restricted Stock Units (RSUs) [Member]	Retained Earnings [Member]	Currency Translation Adjustments [Member]	Oceaneering Shareholders' Equity [Member]	Noncontrolling Interest [Member]	Treasury Stock, Common	Treasury Stock, Common Restricted Stock Units (RSUs) [Member]
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stockholders' Equity Attributable to Parent							$ 714,259
Beginning balance at Dec. 31, 2024			$ 98,621		$ 1,572,725	$ (429,446)		$ 720,322	$ (555,350)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	$ 50,377				50,377		50,377
Other Comprehensive Income (Loss), Net of Tax	20,336					20,336	20,336
Restricted Stock or Unit Expense	1,899						(1,899)
Restricted stock and restricted stock unit activity				$ (24,307)						$ 22,408
Treasury Stock, Value, Acquired, Cost Method	(10,008)						10,008		10,008
Ending balance at Mar. 31, 2025	779,128	$ 27,709	74,314		1,623,102	(409,110)		6,063	(542,950)
Beginning balance at Dec. 31, 2024			98,621		1,572,725	(429,446)		720,322	(555,350)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Treasury Stock, Value, Acquired, Cost Method	(40,000)
Ending balance at Dec. 31, 2025	1,076,663	27,709	80,454		1,926,486	(396,068)		6,063	(567,981)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stockholders' Equity Attributable to Parent							773,065
Right-of-use operating lease assets	349,751
Financing Receivable, Allowance for Credit Loss	500
Stockholders' Equity Attributable to Parent	1,070,600						1,070,600
Net income (loss)	36,107						36,107
Other Comprehensive Income (Loss), Net of Tax	3,570					3,570	3,570
Restricted Stock or Unit Expense	3,585						3,585
Restricted stock and restricted stock unit activity				$ (22,620)						$ 19,035
Ending balance at Mar. 31, 2026	1,112,755	$ 27,709	$ 57,834		$ 1,962,593	$ (392,498)		$ 6,063	$ (548,946)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Right-of-use operating lease assets	323,525
Financing Receivable, Allowance for Credit Loss	500
Stockholders' Equity Attributable to Parent	$ 1,106,692						$ 1,106,692