Summary Of Major Accounting Policies - Acquisitions (Details)

3 Months Ended

12 Months Ended

Mar. 31, 2022

Dec. 31, 2022

New Accounting Pronouncements or Change in Accounting Principle [Line Items]

New Accounting Pronouncements and Changes in Accounting Principles [Text Block]

2. ACCOUNTING STANDARDS UPDATERecently Adopted Accounting Standards. In March 2020, the Financial Accounting Standards Board issued ASU No. 2020-04, “Reference Rate Reform (Topic 848): Facilitation of the Effects of Reference Rate Reform on Financial Reporting” (“ASU 2020-04”), which provides temporary optional expedients and exceptions to existing guidance on applying contract modifications and hedge accounting to facilitate the market transition from existing reference rates, such as the London Interbank Offered Rate (“LIBOR”), which is scheduled to be phased out in June 2023, to alternate rates such as the Secured Overnight Financing Rate (“SOFR”). This ASU was effective upon issuance and could be applied prospectively through December 31, 2022. Our prior five-year revolving credit facility, which has been replaced, referenced LIBOR-based rates. We applied this guidance in connection with our entry into a new senior secured revolving credit agreement in April 2022, which references SOFR rates. See Note 6—”Debt” for information on the retirement of our prior revolving credit facility and entry into our senior secured revolving credit agreement in April 2022. Our adoption of ASU 2020-04 beginning in April 2022 did not have a material impact on our consolidated financial statements.

Details of Impairment of Long-Lived Assets Held and Used by Asset [Table Text Block]

Our reporting units with long-lived asset impairments in the three-month period ended March 31, 2020, were realigned into our new reporting segments as follows:

		Three Months Ended March 31, 2020
(in thousands)		As originally recorded		As recast to reflect segment changes
Segment/Reporting Unit		Long-lived Asset Impairments		Manufactured Products		OPG		IMDS		Total
Subsea Products
	Subsea Distribution Solutions U.K.	$	6,543	$	6,543	$	—	$	—	$	6,543
	Subsea Distribution Solutions Brazil	9,834		9,834						9,834
	Subsea Distribution Solutions Angola	38,482		38,482						38,482
Subsea Projects
	Shallow Water vessels	3,894				3,894				3,894
	Renewables and Special Projects Group	3,628				3,628				3,628
	Global Data Solutions	167						167		167
Advanced Technologies
	Oceaneering Entertainment Systems	5,065		5,065						5,065
	Oceaneering AGV Systems	1,150		1,150						1,150
	Total long-lived asset impairments	$	68,763	$	61,074	$	7,522	$	167	$	68,763

In 2020, we also recorded $24 million for write-downs and write-offs of certain equipment and intangible assets associated with equipment obsolescence.