REVENUE, CONTRACT ASSETS AND LIABILITIES AND OTHER CONTRACT MATTERS - Remaining Performance Obligation by Segment (Details) $ in Thousands |
Sep. 30, 2019
USD ($)
vessel
|
|---|---|
| Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items] | |
| Remaining performance obligation | $ 439,935 |
| Number of multi-purpose service vessels | vessel | 2 |
| Fabrication | Operating Segments | |
| Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items] | |
| Remaining performance obligation | $ 39,894 |
| Shipyard | Disputed | |
| Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items] | |
| Remaining performance obligation | 21,900 |
| Shipyard | Operating Segments | |
| Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items] | |
| Remaining performance obligation | 384,852 |
| Services | Operating Segments | |
| Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items] | |
| Remaining performance obligation | $ 15,189 |