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]	Additional Paid-in Capital [Member] Restricted Stock [Member]	Treasury Stock [Member]	Treasury Stock [Member] Restricted Stock Units (RSUs) [Member]	Treasury Stock [Member] Restricted Stock [Member]	Retained Earnings [Member]	Currency Translation Adjustments [Member]	Oceaneering Shareholders' Equity [Member]	Noncontrolling Interest [Member]
Beginning balance at Dec. 31, 2020	$ 558,157	$ 27,709	$ 192,492			$ (660,021)			$ 1,351,220	$ (359,306)	$ 552,094	$ 6,063
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	(9,365)								(9,365)		(9,365)
Other Comprehensive Income (Loss), Net of Tax	(1,802)										(1,802)
Restricted Stock or Unit Expense	1,355										1,355
Restricted stock and restricted stock unit activity				$ (13,642)	$ (10,439)		$ 14,997	$ 10,439
Ending balance at Mar. 31, 2021	548,345	27,709	168,411			(634,585)			1,341,855	(361,108)	542,282	6,063
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Right-of-use operating lease assets	146,097
Beginning balance at Dec. 31, 2021	511,024	27,709	173,608			(631,811)			1,301,913	(366,458)	504,961	6,063
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	(19,210)								(19,210)		(19,210)
Other Comprehensive Income (Loss), Net of Tax	9,871										9,871
Restricted Stock or Unit Expense	370										370
Restricted stock and restricted stock unit activity				$ (19,082)	$ (6,466)		$ 19,452	$ 6,466
Ending balance at Mar. 31, 2022	502,055	$ 27,709	$ 148,060			$ (605,893)			$ 1,282,703	$ (356,587)	$ 495,992	$ 6,063
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Right-of-use operating lease assets	142,091
Financing Receivable, Allowance for Credit Loss	300
Interest Receivable	$ 1,200