Shipyard Transaction and Discontinued Operations - Summary of Operating Results From Discontinued Operations (Parenthetical) (Details) $ in Millions |
3 Months Ended |
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Mar. 31, 2021
USD ($)
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| Shipyard Transaction | |
| Income Statement Balance Sheet And Additional Disclosures By Disposal Groups Including Discontinued Operations [Line Items] | |
| Estimated loss related to impairment of long lived assets and transaction costs | $ 22.8 |
| Additional loss related to additional transaction and other costs | 0.7 |
| Towing Salvage and Rescue Ship | |
| Income Statement Balance Sheet And Additional Disclosures By Disposal Groups Including Discontinued Operations [Line Items] | |
| Change in estimated margins | $ 8.4 |
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- Definition Additional loss related to additional transaction and other costs. No definition available.
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- Definition Contract with customer, asset, cumulative catch-up adjustment to revenue, change in estimated margins. No definition available.
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- Definition The aggregate amount of write-downs for impairments recognized during the period for long-lived assets held for abandonment, exchange or sale. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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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. No definition available.
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