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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 | 6 Months Ended
--- | --- | ---
Jun. 30, 2023 | Jun. 30, 2022 | Jun. 30, 2023 | Jun. 30, 2022
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | $ 39,326 | $ 35,902 | $ 101,494 | $ 64,588
Long-Term Contract with Customer |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | 14,515 | 14,122 | 54,734 | 23,271
Short-Term Contract with Customer |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | 24,811 | 21,780 | 46,760 | 41,317
Eliminations |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | (267) | (85) | (695) | (177)
Eliminations | Long-Term Contract with Customer |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | (2) | (5) | (10) | (6)
Eliminations | Short-Term Contract with Customer |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | (265) | (80) | (685) | (171)
Services | Operating Segments |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | 24,470 | 22,180 | 46,057 | 42,844
Services | Operating Segments | Long-Term Contract with Customer |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | 627 | 962 | 799 | 2,571
Services | Operating Segments | Short-Term Contract with Customer |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | 23,843 | 21,218 | 45,258 | 40,273
Fabrication | Operating Segments |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | 14,741 | 10,839 | 54,403 | 16,456
Fabrication | Operating Segments | Long-Term Contract with Customer |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | 13,508 | 10,197 | 52,216 | 15,241
Fabrication | Operating Segments | Short-Term Contract with Customer |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | 1,233 | 642 | 2,187 | 1,215
Shipyard | Operating Segments |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | 382 | 2,968 | 1,729 | 5,465
Shipyard | Operating Segments | Long-Term Contract with Customer |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | 382 | 2,968 | 1,729 | 5,465
Fixed-price and unit-rate |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | 14,406 | 13,122 | 28,106 | 22,271
Fixed-price and unit-rate | Eliminations |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | (2) | (5) | (10) | (6)
Fixed-price and unit-rate | Services | Operating Segments |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | 627 | 962 | 799 | 2,571
Fixed-price and unit-rate | Fabrication | Operating Segments |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | 13,399 | 9,197 | 25,588 | 14,241
Fixed-price and unit-rate | Shipyard | Operating Segments |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | 382 | 2,968 | 1,729 | 5,465
Time And Materials And Cost Reimbursable |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | 24,170 | 21,145 | 72,185 | 40,181
Time And Materials And Cost Reimbursable | Services | Operating Segments |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | 22,828 | 20,503 | 43,370 | 38,966
Time And Materials And Cost Reimbursable | Fabrication | Operating Segments |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | 1,342 | 642 | 28,815 | 1,215
Other |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | 750 | 1,635 | 1,203 | 2,136
Other | Eliminations |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | (265) | (80) | (685) | (171)
Other | Services | Operating Segments |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | $ 1,015 | 715 | $ 1,888 | 1,307
Other | Fabrication | Operating Segments |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue |  | $ 1,000 |  | $ 1,000

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