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Revenue, Contract Assets and Liabilities and Other Contract Matters - Summary of Disaggregation of Revenue (Details) - USD ($) $ in Thousands | 3 Months Ended
--- | ---
Mar. 31, 2024 | Mar. 31, 2023
Disaggregation of Revenue [Line Items] |  |
Revenue | $ 42,881 | $ 62,168
Long-Term Contract with Customer |  |
Disaggregation of Revenue [Line Items] |  |
Revenue | 16,616 | 40,219
Short-Term Contract with Customer |  |
Disaggregation of Revenue [Line Items] |  |
Revenue | 26,265 | 21,949
Eliminations |  |
Disaggregation of Revenue [Line Items] |  |
Revenue | (200) | (428)
Eliminations | Long-Term Contract with Customer |  |
Disaggregation of Revenue [Line Items] |  |
Revenue |  | (8)
Eliminations | Short-Term Contract with Customer |  |
Disaggregation of Revenue [Line Items] |  |
Revenue | (200) | (420)
Services | Operating Segments |  |
Disaggregation of Revenue [Line Items] |  |
Revenue | 25,534 | 21,587
Services | Operating Segments | Long-Term Contract with Customer |  |
Disaggregation of Revenue [Line Items] |  |
Revenue | 249 | 172
Services | Operating Segments | Short-Term Contract with Customer |  |
Disaggregation of Revenue [Line Items] |  |
Revenue | 25,285 | 21,415
Fabrication | Operating Segments |  |
Disaggregation of Revenue [Line Items] |  |
Revenue | 17,138 | 39,662
Fabrication | Operating Segments | Long-Term Contract with Customer |  |
Disaggregation of Revenue [Line Items] |  |
Revenue | 15,958 | 38,708
Fabrication | Operating Segments | Short-Term Contract with Customer |  |
Disaggregation of Revenue [Line Items] |  |
Revenue | 1,180 | 954
Shipyard Division | Operating Segments |  |
Disaggregation of Revenue [Line Items] |  |
Revenue | 409 | 1,347
Shipyard Division | Operating Segments | Long-Term Contract with Customer |  |
Disaggregation of Revenue [Line Items] |  |
Revenue | 409 | 1,347
Fixed-price and unit-rate |  |
Disaggregation of Revenue [Line Items] |  |
Revenue | 16,533 | 13,700
Fixed-price and unit-rate | Eliminations |  |
Disaggregation of Revenue [Line Items] |  |
Revenue |  | (8)
Fixed-price and unit-rate | Services | Operating Segments |  |
Disaggregation of Revenue [Line Items] |  |
Revenue | 249 | 172
Fixed-price and unit-rate | Fabrication | Operating Segments |  |
Disaggregation of Revenue [Line Items] |  |
Revenue | 15,875 | 12,189
Fixed-price and unit-rate | Shipyard Division | Operating Segments |  |
Disaggregation of Revenue [Line Items] |  |
Revenue | 409 | 1,347
Time And Materials And Cost Reimbursable |  |
Disaggregation of Revenue [Line Items] |  |
Revenue | 25,990 | 48,015
Time And Materials And Cost Reimbursable | Services | Operating Segments |  |
Disaggregation of Revenue [Line Items] |  |
Revenue | 24,727 | 20,542
Time And Materials And Cost Reimbursable | Fabrication | Operating Segments |  |
Disaggregation of Revenue [Line Items] |  |
Revenue | 1,263 | 27,473
Other |  |
Disaggregation of Revenue [Line Items] |  |
Revenue | 358 | 453
Other | Eliminations |  |
Disaggregation of Revenue [Line Items] |  |
Revenue | (200) | (420)
Other | Services | Operating Segments |  |
Disaggregation of Revenue [Line Items] |  |
Revenue | $ 558 | $ 873

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