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- Definition

Disposal Group, Including Discontinued Operation, Decommissioning Liability Expense

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- Definition

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.

+ References

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- Definition

Reflects the estimated amount of loss from the specified contingency as of the balance sheet date.

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- Definition

Amount of cash inflow from the collection of receivables related to a loss contingency.

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Discontinued Operations - Narrative (Details) - USD ($) $ in Millions	1 Months Ended	12 Months Ended
	Sep. 30, 2024	Dec. 31, 2024	Aug. 16, 2024	Mar. 31, 2018
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Decommissioning expense accrued		$ 5.8
Discontinued Operations \| Minimum
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Estimated amount of potential loss liability	$ 5.8
Discontinued Operations \| Maximum
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Estimated amount of potential loss liability	19.4
Surety Bond \| Maritech
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Bond proceeds	$ 3.9
Initial Bonds \| Maritech
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Estimated amount of potential loss liability			$ 10.7
Discontinued Operations, Disposed of by Sale \| Offshore Division \| Initial Bonds
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Aggregate amount of performance bonds				$ 46.8
Discontinued Operations, Disposed of by Sale \| Offshore Division \| Interim Replacement Bonds
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Aggregate amount of performance bonds				$ 47.0