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							$ 628,020
Beginning balance at Dec. 31, 2023			$ 131,774		$ 1,425,257	$ (382,340)		$ 634,083	$ (574,380)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	$ 15,135				15,135		15,135
Other Comprehensive Income (Loss), Net of Tax	(15,963)						(15,963)
Restricted Stock or Unit Expense	4,112						(4,112)
Restricted stock and restricted stock unit activity				$ (37,504)						$ 33,392
Ending balance at Mar. 31, 2024	629,143	$ 27,709	94,270		1,440,392	(398,303)			(540,988)
Beginning balance at Dec. 31, 2023			131,774		1,425,257	(382,340)		$ 634,083	(574,380)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Treasury Stock, Value, Acquired, Cost Method	$ (20,000)
Treasury Stock, Shares, Acquired	800,000
Ending balance at Dec. 31, 2024	$ 720,322	27,709	98,621		1,572,725	(429,446)			(555,350)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Noncontrolling interest	6,063
Stockholders' Equity Attributable to Parent							623,080
Right-of-use operating lease assets	334,721
Financing Receivable, Allowance for Credit Loss	1,400
Noncontrolling interest	6,063
Stockholders' Equity Attributable to Parent	714,259						714,259
Net income (loss)	50,377						50,377
Other Comprehensive Income (Loss), Net of Tax	20,336						20,336
Restricted Stock or Unit Expense	2,323						2,323
Restricted stock and restricted stock unit activity	424		424	$ (24,731)			424		0	$ 22,408
Treasury Stock, Value, Acquired, Cost Method	$ (10,008)						(10,008)		$ (10,008)
Treasury Stock, Shares, Acquired	500,000								479,154
Ending balance at Mar. 31, 2025	$ 779,128	$ 27,709	$ 74,314		$ 1,623,102	$ (409,110)			$ (542,950)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Right-of-use operating lease assets	313,814
Financing Receivable, Allowance for Credit Loss	1,400
Noncontrolling interest	6,063
Stockholders' Equity Attributable to Parent	$ 773,065						$ 773,065