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Commitments And Contingencies And Other Matters - Narrative (Details) | 12 Months Ended
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Dec. 31, 2020
Siem | Siem Helix 1 and Siem Helix 2 |
Commitments And Contingencies [Line Items] |
Term of charter agreement | 7 years

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- Definition Commitments And Contingencies [Line Items] + References No definition available. + Details
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- Definition Term of charter agreement in years. + References No definition available. + Details
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- Details
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Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
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Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |