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Number Of Installment Payments To Acquire Equity Method Investments

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Option Contract Indexed to Equity, Purchased Shares, Percentage

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Option Indexed to Issuer's Equity, Remaining Interest Exercised, Percentage

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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In a business combination in which the amount of net identifiable assets acquired and liabilities assumed exceeds the aggregate consideration transferred or to be transferred (as defined), this element represents the amount of gain recognized by the entity.

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Amount of assets acquired at the acquisition date.

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- Definition

Amount of long-term debt due within one year or within the normal operating cycle, if longer, assumed at the acquisition date.

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The amount of identifiable intangible assets recognized as of the acquisition date.

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Amount of liabilities assumed at the acquisition date.

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The amount of property, plant, and equipment recognized as of the acquisition date.

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The net gains or losses recognized for each transaction with the acquiree that was recognized separately from the acquisition of assets and assumptions of liabilities in the business combination.

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Percentage of voting equity interests acquired in a business combination achieved in stages, including equity interests in the acquiree held by the acquirer immediately before the acquisition date and acquired at the acquisition date.

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This item represents an other than temporary decline in value that has been recognized against an investment accounted for under the equity method of accounting. The excess of the carrying amount over the fair value of the investment represents the amount of the write down which is or was reflected in earnings. The written down value is a new cost basis with the adjusted value of the investment becoming its new carrying value subject to the equity accounting method. Evidence of a loss in value might include, but would not necessarily be limited to, absence of an ability to recover the carrying amount of the investment or inability of the investee to sustain an earnings capacity which would justify the carrying amount of the investment.

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Fair value portion of investments accounted under the equity method.

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Useful life of finite-lived intangible assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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The equity interest of noncontrolling shareholders, partners or other equity holders in consolidated entity.

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The charge against earnings resulting from the write down of long lived assets other than goodwill due to the difference between the carrying value and lower fair value.

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The cash outflow associated with the purchase of or advances to an equity method investments, which are investments in joint ventures and entities in which the entity has an equity ownership interest normally of 20 to 50 percent and exercises significant influence.

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Amount of cash outflow to a noncontrolling interest. Includes, but not limited to, reduction of noncontrolling interest ownership. Excludes dividends paid to the noncontrolling interest.

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BUSINESS COMBINATION AND OTHER TRANSACTIONS - Narrative (Details)			1 Months Ended	3 Months Ended	12 Months Ended
	Oct. 12, 2021 USD ($)	Dec. 30, 2019 USD ($) vessel	Oct. 31, 2021 USD ($) installment	Sep. 30, 2021 USD ($)	Dec. 31, 2021 USD ($)	Dec. 31, 2020 USD ($)	Dec. 31, 2019 USD ($)	Mar. 12, 2018
Business Acquisition [Line Items]
Acquisition of non-controlling interest				$ 48,600,000	$ 48,600,000	$ 0	$ 0
Island Offshore Management AS
Business Acquisition [Line Items]
Fair value					43,700,000	$ 43,700,000
Island Offshore Management AS \| TIOS AS
Business Acquisition [Line Items]
Noncontrolling interest, ownership percentage by noncontrolling owners						51.00%
Island Offshore Management AS \| TIOS AS \| Share Purchase Agreement
Business Acquisition [Line Items]
Purchased shares (percentage)								51.00%
Remaining interest (percentage)				49.00%
TOP CV
Business Acquisition [Line Items]
Acquired assets		$ 391,000,000
Number of acquired vessels \| vessel		2
Vessels acquired		$ 335,200,000
Liability assumed		239,900,000
Business combination, long-term debt		203,100,000
Business combination, net loss		(900,000)
Impairment charge		84,200,000
Business combination, bargain purchase, gain recognized, amount		$ 83,300,000
Subsea \| TOP CV
Business Acquisition [Line Items]
Purchased remaining ownership interest		50.00%
Magma Global Limited
Business Acquisition [Line Items]
Payments to acquire equity method investments	$ 23,900,000		$ 64,000,000
Number of annual installment payments \| installment			3
Equity method investment impairment, Impairment				$ 36,700,000
Identifiable intangible assets acquired					$ 50,200,000
Finite-lived intangible asset, useful life					15 years