Consolidated Statements of Equity - USD ($) $ in Thousands	Total	Maximum [Member]	Restricted Stock Units (RSUs) [Member]	Common Stock [Member]	Additional Paid-in Capital [Member]	Additional Paid-in Capital [Member] Restricted Stock Units (RSUs) [Member]	Additional Paid-in Capital [Member] Restricted Stock [Member]	Retained Earnings [Member]	Currency Translation Adjustments [Member]	Oceaneering Shareholders' Equity [Member]	Oceaneering Shareholders' Equity [Member] Restricted Stock Units (RSUs) [Member]	Noncontrolling Interest [Member]	Treasury Stock, Common	Treasury Stock, Common Restricted Stock Units (RSUs) [Member]	Treasury Stock, Common Restricted Stock [Member]
Beginning balance at Dec. 31, 2022	$ 525,804			$ 27,709	$ 155,858			$ 1,327,854	$ (386,127)	$ 519,741		$ 6,063	$ (605,553)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	4,060							4,060		4,060
Other Comprehensive Income (Loss), Net of Tax	(1,946)								(1,946)	(1,946)
Restricted stock unit activity, net	(1,612)									(1,612)
Restricted stock and restricted stock unit activity						$ (26,963)	$ (3,884)							$ 25,351	$ 3,884
Ending balance at Mar. 31, 2023	526,306			27,709	125,011			1,331,914	(388,073)	520,243		6,063	(576,318)
Beginning balance at Dec. 31, 2022	525,804			27,709	155,858			1,327,854	(386,127)	519,741		6,063	(605,553)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	23,062
Other Comprehensive Income (Loss), Net of Tax	1,142
Ending balance at Jun. 30, 2023	551,482			27,709	127,552			1,350,916	(384,985)	545,419		6,063	(575,773)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Financing Receivable, Allowance for Credit Loss, Writeoff	2,900
Beginning balance at Mar. 31, 2023	526,306			27,709	125,011			1,331,914	(388,073)	520,243		6,063	(576,318)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	19,002							19,002
Other Comprehensive Income (Loss), Net of Tax	3,088								3,088	3,088
Restricted stock and restricted stock unit activity			$ 3,086			2,807	(266)				$ 3,086			279	266
Ending balance at Jun. 30, 2023	551,482			27,709	127,552			1,350,916	(384,985)	545,419		6,063	(575,773)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Right-of-use operating lease assets	337,554
Beginning balance at Dec. 31, 2023	634,083			27,709	131,774			1,425,257	(382,340)	628,020		6,063	(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)	(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)	623,080		6,063	(540,988)
Beginning balance at Dec. 31, 2023	634,083			27,709	131,774			1,425,257	(382,340)	628,020		6,063	(574,380)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	50,132
Other Comprehensive Income (Loss), Net of Tax	(26,488)
Ending balance at Jun. 30, 2024	657,095			27,709	92,341			1,475,389	(408,828)	651,032		6,063	(535,579)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Debt Instrument, Basis Spread on Variable Rate		325.00%
Financing Receivable, Allowance for Credit Loss, Writeoff	100
Beginning balance at Mar. 31, 2024	629,143			27,709	94,270			1,440,392	(398,303)	623,080		6,063	(540,988)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	34,997							34,997
Other Comprehensive Income (Loss), Net of Tax	(10,525)								(10,525)
Restricted stock and restricted stock unit activity						$ 2,319	$ (4,248)				$ 3,480			$ 1,161	$ 4,248
Ending balance at Jun. 30, 2024	657,095			$ 27,709	$ 92,341			$ 1,475,389	$ (408,828)	$ 651,032		$ 6,063	$ (535,579)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Right-of-use operating lease assets	$ 378,715