Commitments And Contingencies And Other Matters - Narrative (Details) - USD ($) $ in Thousands |
6 Months Ended | |
---|---|---|
Jun. 30, 2019 |
Dec. 31, 2018 |
|
Commitments And Contingencies [Line Items] | ||
Total investment | $ 2,805,043 | $ 2,785,778 |
Siem Helix 1 and Siem Helix 2 | ||
Commitments And Contingencies [Line Items] | ||
Term of charter agreement | 7 years | |
Q7000 | ||
Commitments And Contingencies [Line Items] | ||
Total investment | $ 427,400 | |
Q7000 | Contract Signing | ||
Commitments And Contingencies [Line Items] | ||
Percentage of contract price | 20.00% | |
Q7000 | Due 2016 | ||
Commitments And Contingencies [Line Items] | ||
Percentage of contract price | 20.00% | |
Q7000 | Due 2017 | ||
Commitments And Contingencies [Line Items] | ||
Percentage of contract price | 20.00% | |
Q7000 | Due 2018 | ||
Commitments And Contingencies [Line Items] | ||
Percentage of contract price | 20.00% | |
Q7000 | Vessel Delivery | ||
Commitments And Contingencies [Line Items] | ||
Percentage of contract price | 20.00% | |
Q7000 | Shipyard | ||
Commitments And Contingencies [Line Items] | ||
Total investment | $ 276,800 |