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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 | 9 Months Ended
--- | --- | ---
Sep. 30, 2024 | Sep. 30, 2023 | Sep. 30, 2024 | Sep. 30, 2023
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | $ 37,640 | $ 5,023 | $ 121,783 | $ 106,517
Long-Term Contract with Customer |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | 16,347 | (19,122) | 51,166 | 35,612
Short-Term Contract with Customer |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | 21,293 | 24,145 | 70,617 | 70,905
Eliminations |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | (205) | (230) | (673) | (925)
Eliminations | Long-Term Contract with Customer |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | (3) | (20) | (6) | (30)
Eliminations | Short-Term Contract with Customer |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | (202) | (210) | (667) | (895)
Services | Operating Segments |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | 20,245 | 22,976 | 68,546 | 69,033
Services | Operating Segments | Long-Term Contract with Customer |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | 74 | 557 | 837 | 1,356
Services | Operating Segments | Short-Term Contract with Customer |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | 20,171 | 22,419 | 67,709 | 67,677
Fabrication | Operating Segments |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | 17,110 | 14,979 | 52,975 | 69,382
Fabrication | Operating Segments | Long-Term Contract with Customer |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | 15,786 | 13,043 | 49,400 | 65,259
Fabrication | Operating Segments | Short-Term Contract with Customer |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | 1,324 | 1,936 | 3,575 | 4,123
Shipyard Division | Operating Segments |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | 490 | (32,702) | 935 | (30,973)
Shipyard Division | Operating Segments | Long-Term Contract with Customer |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | 490 | (32,702) | 935 | (30,973)
Fixed-price and unit-rate |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | 10,796 | (19,980) | 44,558 | 8,126
Fixed-price and unit-rate | Eliminations |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | (3) | (20) | (6) | (30)
Fixed-price and unit-rate | Services | Operating Segments |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | 74 | 557 | 837 | 1,356
Fixed-price and unit-rate | Fabrication | Operating Segments |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | 10,235 | 12,185 | 42,792 | 37,773
Fixed-price and unit-rate | Shipyard Division | Operating Segments |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | 490 | (32,702) | 935 | (30,973)
Time And Materials And Cost Reimbursable |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | 26,278 | 23,880 | 75,902 | 96,065
Time And Materials And Cost Reimbursable | Services | Operating Segments |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | 19,403 | 21,086 | 65,719 | 64,456
Time And Materials And Cost Reimbursable | Fabrication | Operating Segments |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | 6,875 | 2,794 | 10,183 | 31,609
Other |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | 566 | 1,123 | 1,323 | 2,326
Other | Eliminations |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | (202) | (210) | (667) | (895)
Other | Services | Operating Segments |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | $ 768 | $ 1,333 | $ 1,990 | $ 3,221

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