Shipyard Transaction and Discontinued Operations - Summary of Operating Results From Discontinued Operations (Parenthetical) (Details) - USD ($) $ in Millions |
3 Months Ended | 6 Months Ended |
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Jun. 30, 2021 |
Jun. 30, 2021 |
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| Shipyard Transactions | ||
| 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 | $ 1.9 | 2.6 |
| 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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